code stringlengths 1 1.05M | repo_name stringlengths 6 83 | path stringlengths 3 242 | language stringclasses 222 values | license stringclasses 20 values | size int64 1 1.05M |
|---|---|---|---|---|---|
/*
* Debugging routines
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_DEBUG_C)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#define mbedtls_time_t time_t
#define mbedtls_snprintf snprintf
#endif
#include "mbedtls/debug.h"
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
!defined(inline) && !defined(__cplusplus)
#define inline __inline
#endif
#define DEBUG_BUF_SIZE 512
static int debug_threshold = 0;
void mbedtls_debug_set_threshold( int threshold )
{
debug_threshold = threshold;
}
/*
* All calls to f_dbg must be made via this function
*/
static inline void debug_send_line( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *str )
{
/*
* If in a threaded environment, we need a thread identifier.
* Since there is no portable way to get one, use the address of the ssl
* context instead, as it shouldn't be shared between threads.
*/
#if defined(MBEDTLS_THREADING_C)
char idstr[20 + DEBUG_BUF_SIZE]; /* 0x + 16 nibbles + ': ' */
mbedtls_snprintf( idstr, sizeof( idstr ), "%p: %s", (void*)ssl, str );
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, idstr );
#else
ssl->conf->f_dbg( ssl->conf->p_dbg, level, file, line, str );
#endif
}
void mbedtls_debug_print_msg( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *format, ... )
{
va_list argp;
char str[DEBUG_BUF_SIZE];
int ret;
if( NULL == ssl || NULL == ssl->conf || NULL == ssl->conf->f_dbg || level > debug_threshold )
return;
va_start( argp, format );
#if defined(_WIN32)
#if defined(_TRUNCATE) && !defined(__MINGW32__)
ret = _vsnprintf_s( str, DEBUG_BUF_SIZE, _TRUNCATE, format, argp );
#else
ret = _vsnprintf( str, DEBUG_BUF_SIZE, format, argp );
if( ret < 0 || (size_t) ret == DEBUG_BUF_SIZE )
{
str[DEBUG_BUF_SIZE-1] = '\0';
ret = -1;
}
#endif
#else
ret = vsnprintf( str, DEBUG_BUF_SIZE, format, argp );
#endif
va_end( argp );
if( ret >= 0 && ret < DEBUG_BUF_SIZE - 1 )
{
str[ret] = '\n';
str[ret + 1] = '\0';
}
debug_send_line( ssl, level, file, line, str );
}
void mbedtls_debug_print_ret( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *text, int ret )
{
char str[DEBUG_BUF_SIZE];
if( ssl->conf == NULL || ssl->conf->f_dbg == NULL || level > debug_threshold )
return;
/*
* With non-blocking I/O and examples that just retry immediately,
* the logs would be quickly flooded with WANT_READ, so ignore that.
* Don't ignore WANT_WRITE however, since is is usually rare.
*/
if( ret == MBEDTLS_ERR_SSL_WANT_READ )
return;
mbedtls_snprintf( str, sizeof( str ), "%s() returned %d (-0x%04x)\n",
text, ret, -ret );
debug_send_line( ssl, level, file, line, str );
}
void mbedtls_debug_print_buf( const mbedtls_ssl_context *ssl, int level,
const char *file, int line, const char *text,
const unsigned char *buf, size_t len )
{
char str[DEBUG_BUF_SIZE];
char txt[17];
size_t i, idx = 0;
if( ssl->conf == NULL || ssl->conf->f_dbg == NULL || level > debug_threshold )
return;
mbedtls_snprintf( str + idx, sizeof( str ) - idx, "dumping '%s' (%u bytes)\n",
text, (unsigned int) len );
debug_send_line( ssl, level, file, line, str );
idx = 0;
memset( txt, 0, sizeof( txt ) );
for( i = 0; i < len; i++ )
{
if( i >= 4096 )
break;
if( i % 16 == 0 )
{
if( i > 0 )
{
mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %s\n", txt );
debug_send_line( ssl, level, file, line, str );
idx = 0;
memset( txt, 0, sizeof( txt ) );
}
idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, "%04x: ",
(unsigned int) i );
}
idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %02x",
(unsigned int) buf[i] );
txt[i % 16] = ( buf[i] > 31 && buf[i] < 127 ) ? buf[i] : '.' ;
}
if( len > 0 )
{
for( /* i = i */; i % 16 != 0; i++ )
idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " " );
mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %s\n", txt );
debug_send_line( ssl, level, file, line, str );
}
}
#if defined(MBEDTLS_ECP_C)
void mbedtls_debug_print_ecp( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *text, const mbedtls_ecp_point *X )
{
char str[DEBUG_BUF_SIZE];
if( ssl->conf == NULL || ssl->conf->f_dbg == NULL || level > debug_threshold )
return;
mbedtls_snprintf( str, sizeof( str ), "%s(X)", text );
mbedtls_debug_print_mpi( ssl, level, file, line, str, &X->X );
mbedtls_snprintf( str, sizeof( str ), "%s(Y)", text );
mbedtls_debug_print_mpi( ssl, level, file, line, str, &X->Y );
}
#endif /* MBEDTLS_ECP_C */
#if defined(MBEDTLS_BIGNUM_C)
void mbedtls_debug_print_mpi( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *text, const mbedtls_mpi *X )
{
char str[DEBUG_BUF_SIZE];
int j, k, zeros = 1;
size_t i, n, idx = 0;
if( ssl->conf == NULL || ssl->conf->f_dbg == NULL || X == NULL || level > debug_threshold )
return;
for( n = X->n - 1; n > 0; n-- )
if( X->p[n] != 0 )
break;
for( j = ( sizeof(mbedtls_mpi_uint) << 3 ) - 1; j >= 0; j-- )
if( ( ( X->p[n] >> j ) & 1 ) != 0 )
break;
mbedtls_snprintf( str + idx, sizeof( str ) - idx, "value of '%s' (%d bits) is:\n",
text, (int) ( ( n * ( sizeof(mbedtls_mpi_uint) << 3 ) ) + j + 1 ) );
debug_send_line( ssl, level, file, line, str );
idx = 0;
for( i = n + 1, j = 0; i > 0; i-- )
{
if( zeros && X->p[i - 1] == 0 )
continue;
for( k = sizeof( mbedtls_mpi_uint ) - 1; k >= 0; k-- )
{
if( zeros && ( ( X->p[i - 1] >> ( k << 3 ) ) & 0xFF ) == 0 )
continue;
else
zeros = 0;
if( j % 16 == 0 )
{
if( j > 0 )
{
mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" );
debug_send_line( ssl, level, file, line, str );
idx = 0;
}
}
idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " %02x", (unsigned int)
( X->p[i - 1] >> ( k << 3 ) ) & 0xFF );
j++;
}
}
if( zeros == 1 )
idx += mbedtls_snprintf( str + idx, sizeof( str ) - idx, " 00" );
mbedtls_snprintf( str + idx, sizeof( str ) - idx, "\n" );
debug_send_line( ssl, level, file, line, str );
}
#endif /* MBEDTLS_BIGNUM_C */
#if defined(MBEDTLS_X509_CRT_PARSE_C)
static void debug_print_pk( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *text, const mbedtls_pk_context *pk )
{
size_t i;
mbedtls_pk_debug_item items[MBEDTLS_PK_DEBUG_MAX_ITEMS];
char name[16];
memset( items, 0, sizeof( items ) );
if( mbedtls_pk_debug( pk, items ) != 0 )
{
debug_send_line( ssl, level, file, line,
"invalid PK context\n" );
return;
}
for( i = 0; i < MBEDTLS_PK_DEBUG_MAX_ITEMS; i++ )
{
if( items[i].type == MBEDTLS_PK_DEBUG_NONE )
return;
mbedtls_snprintf( name, sizeof( name ), "%s%s", text, items[i].name );
name[sizeof( name ) - 1] = '\0';
if( items[i].type == MBEDTLS_PK_DEBUG_MPI )
mbedtls_debug_print_mpi( ssl, level, file, line, name, items[i].value );
else
#if defined(MBEDTLS_ECP_C)
if( items[i].type == MBEDTLS_PK_DEBUG_ECP )
mbedtls_debug_print_ecp( ssl, level, file, line, name, items[i].value );
else
#endif
debug_send_line( ssl, level, file, line,
"should not happen\n" );
}
}
static void debug_print_line_by_line( const mbedtls_ssl_context *ssl, int level,
const char *file, int line, const char *text )
{
char str[DEBUG_BUF_SIZE];
const char *start, *cur;
start = text;
for( cur = text; *cur != '\0'; cur++ )
{
if( *cur == '\n' )
{
size_t len = cur - start + 1;
if( len > DEBUG_BUF_SIZE - 1 )
len = DEBUG_BUF_SIZE - 1;
memcpy( str, start, len );
str[len] = '\0';
debug_send_line( ssl, level, file, line, str );
start = cur + 1;
}
}
}
void mbedtls_debug_print_crt( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const char *text, const mbedtls_x509_crt *crt )
{
char str[DEBUG_BUF_SIZE];
int i = 0;
if( ssl->conf == NULL || ssl->conf->f_dbg == NULL || crt == NULL || level > debug_threshold )
return;
while( crt != NULL )
{
char buf[1024];
mbedtls_snprintf( str, sizeof( str ), "%s #%d:\n", text, ++i );
debug_send_line( ssl, level, file, line, str );
mbedtls_x509_crt_info( buf, sizeof( buf ) - 1, "", crt );
debug_print_line_by_line( ssl, level, file, line, buf );
debug_print_pk( ssl, level, file, line, "crt->", &crt->pk );
crt = crt->next;
}
}
#endif /* MBEDTLS_X509_CRT_PARSE_C */
#if defined(MBEDTLS_ECDH_C)
static void mbedtls_debug_printf_ecdh_internal( const mbedtls_ssl_context *ssl,
int level, const char *file,
int line,
const mbedtls_ecdh_context *ecdh,
mbedtls_debug_ecdh_attr attr )
{
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
const mbedtls_ecdh_context* ctx = ecdh;
#else
const mbedtls_ecdh_context_mbed* ctx = &ecdh->ctx.mbed_ecdh;
#endif
switch( attr )
{
case MBEDTLS_DEBUG_ECDH_Q:
mbedtls_debug_print_ecp( ssl, level, file, line, "ECDH: Q",
&ctx->Q );
break;
case MBEDTLS_DEBUG_ECDH_QP:
mbedtls_debug_print_ecp( ssl, level, file, line, "ECDH: Qp",
&ctx->Qp );
break;
case MBEDTLS_DEBUG_ECDH_Z:
mbedtls_debug_print_mpi( ssl, level, file, line, "ECDH: z",
&ctx->z );
break;
default:
break;
}
}
void mbedtls_debug_printf_ecdh( const mbedtls_ssl_context *ssl, int level,
const char *file, int line,
const mbedtls_ecdh_context *ecdh,
mbedtls_debug_ecdh_attr attr )
{
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
mbedtls_debug_printf_ecdh_internal( ssl, level, file, line, ecdh, attr );
#else
switch( ecdh->var )
{
default:
mbedtls_debug_printf_ecdh_internal( ssl, level, file, line, ecdh,
attr );
}
#endif
}
#endif /* MBEDTLS_ECDH_C */
#endif /* MBEDTLS_DEBUG_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/debug.c | C | apache-2.0 | 12,779 |
/*
* FIPS-46-3 compliant Triple-DES implementation
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* DES, on which TDES is based, was originally designed by Horst Feistel
* at IBM in 1974, and was adopted as a standard by NIST (formerly NBS).
*
* http://csrc.nist.gov/publications/fips/fips46-3/fips46-3.pdf
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_DES_C)
#include "mbedtls/des.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if !defined(MBEDTLS_DES_ALT)
/*
* 32-bit integer manipulation macros (big endian)
*/
#ifndef GET_UINT32_BE
#define GET_UINT32_BE(n,b,i) \
{ \
(n) = ( (uint32_t) (b)[(i) ] << 24 ) \
| ( (uint32_t) (b)[(i) + 1] << 16 ) \
| ( (uint32_t) (b)[(i) + 2] << 8 ) \
| ( (uint32_t) (b)[(i) + 3] ); \
}
#endif
#ifndef PUT_UINT32_BE
#define PUT_UINT32_BE(n,b,i) \
{ \
(b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
(b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
(b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
(b)[(i) + 3] = (unsigned char) ( (n) ); \
}
#endif
/*
* Expanded DES S-boxes
*/
static const uint32_t SB1[64] =
{
0x01010400, 0x00000000, 0x00010000, 0x01010404,
0x01010004, 0x00010404, 0x00000004, 0x00010000,
0x00000400, 0x01010400, 0x01010404, 0x00000400,
0x01000404, 0x01010004, 0x01000000, 0x00000004,
0x00000404, 0x01000400, 0x01000400, 0x00010400,
0x00010400, 0x01010000, 0x01010000, 0x01000404,
0x00010004, 0x01000004, 0x01000004, 0x00010004,
0x00000000, 0x00000404, 0x00010404, 0x01000000,
0x00010000, 0x01010404, 0x00000004, 0x01010000,
0x01010400, 0x01000000, 0x01000000, 0x00000400,
0x01010004, 0x00010000, 0x00010400, 0x01000004,
0x00000400, 0x00000004, 0x01000404, 0x00010404,
0x01010404, 0x00010004, 0x01010000, 0x01000404,
0x01000004, 0x00000404, 0x00010404, 0x01010400,
0x00000404, 0x01000400, 0x01000400, 0x00000000,
0x00010004, 0x00010400, 0x00000000, 0x01010004
};
static const uint32_t SB2[64] =
{
0x80108020, 0x80008000, 0x00008000, 0x00108020,
0x00100000, 0x00000020, 0x80100020, 0x80008020,
0x80000020, 0x80108020, 0x80108000, 0x80000000,
0x80008000, 0x00100000, 0x00000020, 0x80100020,
0x00108000, 0x00100020, 0x80008020, 0x00000000,
0x80000000, 0x00008000, 0x00108020, 0x80100000,
0x00100020, 0x80000020, 0x00000000, 0x00108000,
0x00008020, 0x80108000, 0x80100000, 0x00008020,
0x00000000, 0x00108020, 0x80100020, 0x00100000,
0x80008020, 0x80100000, 0x80108000, 0x00008000,
0x80100000, 0x80008000, 0x00000020, 0x80108020,
0x00108020, 0x00000020, 0x00008000, 0x80000000,
0x00008020, 0x80108000, 0x00100000, 0x80000020,
0x00100020, 0x80008020, 0x80000020, 0x00100020,
0x00108000, 0x00000000, 0x80008000, 0x00008020,
0x80000000, 0x80100020, 0x80108020, 0x00108000
};
static const uint32_t SB3[64] =
{
0x00000208, 0x08020200, 0x00000000, 0x08020008,
0x08000200, 0x00000000, 0x00020208, 0x08000200,
0x00020008, 0x08000008, 0x08000008, 0x00020000,
0x08020208, 0x00020008, 0x08020000, 0x00000208,
0x08000000, 0x00000008, 0x08020200, 0x00000200,
0x00020200, 0x08020000, 0x08020008, 0x00020208,
0x08000208, 0x00020200, 0x00020000, 0x08000208,
0x00000008, 0x08020208, 0x00000200, 0x08000000,
0x08020200, 0x08000000, 0x00020008, 0x00000208,
0x00020000, 0x08020200, 0x08000200, 0x00000000,
0x00000200, 0x00020008, 0x08020208, 0x08000200,
0x08000008, 0x00000200, 0x00000000, 0x08020008,
0x08000208, 0x00020000, 0x08000000, 0x08020208,
0x00000008, 0x00020208, 0x00020200, 0x08000008,
0x08020000, 0x08000208, 0x00000208, 0x08020000,
0x00020208, 0x00000008, 0x08020008, 0x00020200
};
static const uint32_t SB4[64] =
{
0x00802001, 0x00002081, 0x00002081, 0x00000080,
0x00802080, 0x00800081, 0x00800001, 0x00002001,
0x00000000, 0x00802000, 0x00802000, 0x00802081,
0x00000081, 0x00000000, 0x00800080, 0x00800001,
0x00000001, 0x00002000, 0x00800000, 0x00802001,
0x00000080, 0x00800000, 0x00002001, 0x00002080,
0x00800081, 0x00000001, 0x00002080, 0x00800080,
0x00002000, 0x00802080, 0x00802081, 0x00000081,
0x00800080, 0x00800001, 0x00802000, 0x00802081,
0x00000081, 0x00000000, 0x00000000, 0x00802000,
0x00002080, 0x00800080, 0x00800081, 0x00000001,
0x00802001, 0x00002081, 0x00002081, 0x00000080,
0x00802081, 0x00000081, 0x00000001, 0x00002000,
0x00800001, 0x00002001, 0x00802080, 0x00800081,
0x00002001, 0x00002080, 0x00800000, 0x00802001,
0x00000080, 0x00800000, 0x00002000, 0x00802080
};
static const uint32_t SB5[64] =
{
0x00000100, 0x02080100, 0x02080000, 0x42000100,
0x00080000, 0x00000100, 0x40000000, 0x02080000,
0x40080100, 0x00080000, 0x02000100, 0x40080100,
0x42000100, 0x42080000, 0x00080100, 0x40000000,
0x02000000, 0x40080000, 0x40080000, 0x00000000,
0x40000100, 0x42080100, 0x42080100, 0x02000100,
0x42080000, 0x40000100, 0x00000000, 0x42000000,
0x02080100, 0x02000000, 0x42000000, 0x00080100,
0x00080000, 0x42000100, 0x00000100, 0x02000000,
0x40000000, 0x02080000, 0x42000100, 0x40080100,
0x02000100, 0x40000000, 0x42080000, 0x02080100,
0x40080100, 0x00000100, 0x02000000, 0x42080000,
0x42080100, 0x00080100, 0x42000000, 0x42080100,
0x02080000, 0x00000000, 0x40080000, 0x42000000,
0x00080100, 0x02000100, 0x40000100, 0x00080000,
0x00000000, 0x40080000, 0x02080100, 0x40000100
};
static const uint32_t SB6[64] =
{
0x20000010, 0x20400000, 0x00004000, 0x20404010,
0x20400000, 0x00000010, 0x20404010, 0x00400000,
0x20004000, 0x00404010, 0x00400000, 0x20000010,
0x00400010, 0x20004000, 0x20000000, 0x00004010,
0x00000000, 0x00400010, 0x20004010, 0x00004000,
0x00404000, 0x20004010, 0x00000010, 0x20400010,
0x20400010, 0x00000000, 0x00404010, 0x20404000,
0x00004010, 0x00404000, 0x20404000, 0x20000000,
0x20004000, 0x00000010, 0x20400010, 0x00404000,
0x20404010, 0x00400000, 0x00004010, 0x20000010,
0x00400000, 0x20004000, 0x20000000, 0x00004010,
0x20000010, 0x20404010, 0x00404000, 0x20400000,
0x00404010, 0x20404000, 0x00000000, 0x20400010,
0x00000010, 0x00004000, 0x20400000, 0x00404010,
0x00004000, 0x00400010, 0x20004010, 0x00000000,
0x20404000, 0x20000000, 0x00400010, 0x20004010
};
static const uint32_t SB7[64] =
{
0x00200000, 0x04200002, 0x04000802, 0x00000000,
0x00000800, 0x04000802, 0x00200802, 0x04200800,
0x04200802, 0x00200000, 0x00000000, 0x04000002,
0x00000002, 0x04000000, 0x04200002, 0x00000802,
0x04000800, 0x00200802, 0x00200002, 0x04000800,
0x04000002, 0x04200000, 0x04200800, 0x00200002,
0x04200000, 0x00000800, 0x00000802, 0x04200802,
0x00200800, 0x00000002, 0x04000000, 0x00200800,
0x04000000, 0x00200800, 0x00200000, 0x04000802,
0x04000802, 0x04200002, 0x04200002, 0x00000002,
0x00200002, 0x04000000, 0x04000800, 0x00200000,
0x04200800, 0x00000802, 0x00200802, 0x04200800,
0x00000802, 0x04000002, 0x04200802, 0x04200000,
0x00200800, 0x00000000, 0x00000002, 0x04200802,
0x00000000, 0x00200802, 0x04200000, 0x00000800,
0x04000002, 0x04000800, 0x00000800, 0x00200002
};
static const uint32_t SB8[64] =
{
0x10001040, 0x00001000, 0x00040000, 0x10041040,
0x10000000, 0x10001040, 0x00000040, 0x10000000,
0x00040040, 0x10040000, 0x10041040, 0x00041000,
0x10041000, 0x00041040, 0x00001000, 0x00000040,
0x10040000, 0x10000040, 0x10001000, 0x00001040,
0x00041000, 0x00040040, 0x10040040, 0x10041000,
0x00001040, 0x00000000, 0x00000000, 0x10040040,
0x10000040, 0x10001000, 0x00041040, 0x00040000,
0x00041040, 0x00040000, 0x10041000, 0x00001000,
0x00000040, 0x10040040, 0x00001000, 0x00041040,
0x10001000, 0x00000040, 0x10000040, 0x10040000,
0x10040040, 0x10000000, 0x00040000, 0x10001040,
0x00000000, 0x10041040, 0x00040040, 0x10000040,
0x10040000, 0x10001000, 0x10001040, 0x00000000,
0x10041040, 0x00041000, 0x00041000, 0x00001040,
0x00001040, 0x00040040, 0x10000000, 0x10041000
};
/*
* PC1: left and right halves bit-swap
*/
static const uint32_t LHs[16] =
{
0x00000000, 0x00000001, 0x00000100, 0x00000101,
0x00010000, 0x00010001, 0x00010100, 0x00010101,
0x01000000, 0x01000001, 0x01000100, 0x01000101,
0x01010000, 0x01010001, 0x01010100, 0x01010101
};
static const uint32_t RHs[16] =
{
0x00000000, 0x01000000, 0x00010000, 0x01010000,
0x00000100, 0x01000100, 0x00010100, 0x01010100,
0x00000001, 0x01000001, 0x00010001, 0x01010001,
0x00000101, 0x01000101, 0x00010101, 0x01010101,
};
/*
* Initial Permutation macro
*/
#define DES_IP(X,Y) \
{ \
T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \
T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \
T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \
T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \
Y = ((Y << 1) | (Y >> 31)) & 0xFFFFFFFF; \
T = (X ^ Y) & 0xAAAAAAAA; Y ^= T; X ^= T; \
X = ((X << 1) | (X >> 31)) & 0xFFFFFFFF; \
}
/*
* Final Permutation macro
*/
#define DES_FP(X,Y) \
{ \
X = ((X << 31) | (X >> 1)) & 0xFFFFFFFF; \
T = (X ^ Y) & 0xAAAAAAAA; X ^= T; Y ^= T; \
Y = ((Y << 31) | (Y >> 1)) & 0xFFFFFFFF; \
T = ((Y >> 8) ^ X) & 0x00FF00FF; X ^= T; Y ^= (T << 8); \
T = ((Y >> 2) ^ X) & 0x33333333; X ^= T; Y ^= (T << 2); \
T = ((X >> 16) ^ Y) & 0x0000FFFF; Y ^= T; X ^= (T << 16); \
T = ((X >> 4) ^ Y) & 0x0F0F0F0F; Y ^= T; X ^= (T << 4); \
}
/*
* DES round macro
*/
#define DES_ROUND(X,Y) \
{ \
T = *SK++ ^ X; \
Y ^= SB8[ (T ) & 0x3F ] ^ \
SB6[ (T >> 8) & 0x3F ] ^ \
SB4[ (T >> 16) & 0x3F ] ^ \
SB2[ (T >> 24) & 0x3F ]; \
\
T = *SK++ ^ ((X << 28) | (X >> 4)); \
Y ^= SB7[ (T ) & 0x3F ] ^ \
SB5[ (T >> 8) & 0x3F ] ^ \
SB3[ (T >> 16) & 0x3F ] ^ \
SB1[ (T >> 24) & 0x3F ]; \
}
#define SWAP(a,b) { uint32_t t = a; a = b; b = t; t = 0; }
void mbedtls_des_init( mbedtls_des_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_des_context ) );
}
void mbedtls_des_free( mbedtls_des_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_des_context ) );
}
void mbedtls_des3_init( mbedtls_des3_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_des3_context ) );
}
void mbedtls_des3_free( mbedtls_des3_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_des3_context ) );
}
static const unsigned char odd_parity_table[128] = { 1, 2, 4, 7, 8,
11, 13, 14, 16, 19, 21, 22, 25, 26, 28, 31, 32, 35, 37, 38, 41, 42, 44,
47, 49, 50, 52, 55, 56, 59, 61, 62, 64, 67, 69, 70, 73, 74, 76, 79, 81,
82, 84, 87, 88, 91, 93, 94, 97, 98, 100, 103, 104, 107, 109, 110, 112,
115, 117, 118, 121, 122, 124, 127, 128, 131, 133, 134, 137, 138, 140,
143, 145, 146, 148, 151, 152, 155, 157, 158, 161, 162, 164, 167, 168,
171, 173, 174, 176, 179, 181, 182, 185, 186, 188, 191, 193, 194, 196,
199, 200, 203, 205, 206, 208, 211, 213, 214, 217, 218, 220, 223, 224,
227, 229, 230, 233, 234, 236, 239, 241, 242, 244, 247, 248, 251, 253,
254 };
void mbedtls_des_key_set_parity( unsigned char key[MBEDTLS_DES_KEY_SIZE] )
{
int i;
for( i = 0; i < MBEDTLS_DES_KEY_SIZE; i++ )
key[i] = odd_parity_table[key[i] / 2];
}
/*
* Check the given key's parity, returns 1 on failure, 0 on SUCCESS
*/
int mbedtls_des_key_check_key_parity( const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
{
int i;
for( i = 0; i < MBEDTLS_DES_KEY_SIZE; i++ )
if( key[i] != odd_parity_table[key[i] / 2] )
return( 1 );
return( 0 );
}
/*
* Table of weak and semi-weak keys
*
* Source: http://en.wikipedia.org/wiki/Weak_key
*
* Weak:
* Alternating ones + zeros (0x0101010101010101)
* Alternating 'F' + 'E' (0xFEFEFEFEFEFEFEFE)
* '0xE0E0E0E0F1F1F1F1'
* '0x1F1F1F1F0E0E0E0E'
*
* Semi-weak:
* 0x011F011F010E010E and 0x1F011F010E010E01
* 0x01E001E001F101F1 and 0xE001E001F101F101
* 0x01FE01FE01FE01FE and 0xFE01FE01FE01FE01
* 0x1FE01FE00EF10EF1 and 0xE01FE01FF10EF10E
* 0x1FFE1FFE0EFE0EFE and 0xFE1FFE1FFE0EFE0E
* 0xE0FEE0FEF1FEF1FE and 0xFEE0FEE0FEF1FEF1
*
*/
#define WEAK_KEY_COUNT 16
static const unsigned char weak_key_table[WEAK_KEY_COUNT][MBEDTLS_DES_KEY_SIZE] =
{
{ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 },
{ 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE, 0xFE },
{ 0x1F, 0x1F, 0x1F, 0x1F, 0x0E, 0x0E, 0x0E, 0x0E },
{ 0xE0, 0xE0, 0xE0, 0xE0, 0xF1, 0xF1, 0xF1, 0xF1 },
{ 0x01, 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E },
{ 0x1F, 0x01, 0x1F, 0x01, 0x0E, 0x01, 0x0E, 0x01 },
{ 0x01, 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1 },
{ 0xE0, 0x01, 0xE0, 0x01, 0xF1, 0x01, 0xF1, 0x01 },
{ 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE },
{ 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01, 0xFE, 0x01 },
{ 0x1F, 0xE0, 0x1F, 0xE0, 0x0E, 0xF1, 0x0E, 0xF1 },
{ 0xE0, 0x1F, 0xE0, 0x1F, 0xF1, 0x0E, 0xF1, 0x0E },
{ 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E, 0xFE },
{ 0xFE, 0x1F, 0xFE, 0x1F, 0xFE, 0x0E, 0xFE, 0x0E },
{ 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1, 0xFE },
{ 0xFE, 0xE0, 0xFE, 0xE0, 0xFE, 0xF1, 0xFE, 0xF1 }
};
int mbedtls_des_key_check_weak( const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
{
int i;
for( i = 0; i < WEAK_KEY_COUNT; i++ )
if( memcmp( weak_key_table[i], key, MBEDTLS_DES_KEY_SIZE) == 0 )
return( 1 );
return( 0 );
}
#if !defined(MBEDTLS_DES_SETKEY_ALT)
void mbedtls_des_setkey( uint32_t SK[32], const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
{
int i;
uint32_t X, Y, T;
GET_UINT32_BE( X, key, 0 );
GET_UINT32_BE( Y, key, 4 );
/*
* Permuted Choice 1
*/
T = ((Y >> 4) ^ X) & 0x0F0F0F0F; X ^= T; Y ^= (T << 4);
T = ((Y ) ^ X) & 0x10101010; X ^= T; Y ^= (T );
X = (LHs[ (X ) & 0xF] << 3) | (LHs[ (X >> 8) & 0xF ] << 2)
| (LHs[ (X >> 16) & 0xF] << 1) | (LHs[ (X >> 24) & 0xF ] )
| (LHs[ (X >> 5) & 0xF] << 7) | (LHs[ (X >> 13) & 0xF ] << 6)
| (LHs[ (X >> 21) & 0xF] << 5) | (LHs[ (X >> 29) & 0xF ] << 4);
Y = (RHs[ (Y >> 1) & 0xF] << 3) | (RHs[ (Y >> 9) & 0xF ] << 2)
| (RHs[ (Y >> 17) & 0xF] << 1) | (RHs[ (Y >> 25) & 0xF ] )
| (RHs[ (Y >> 4) & 0xF] << 7) | (RHs[ (Y >> 12) & 0xF ] << 6)
| (RHs[ (Y >> 20) & 0xF] << 5) | (RHs[ (Y >> 28) & 0xF ] << 4);
X &= 0x0FFFFFFF;
Y &= 0x0FFFFFFF;
/*
* calculate subkeys
*/
for( i = 0; i < 16; i++ )
{
if( i < 2 || i == 8 || i == 15 )
{
X = ((X << 1) | (X >> 27)) & 0x0FFFFFFF;
Y = ((Y << 1) | (Y >> 27)) & 0x0FFFFFFF;
}
else
{
X = ((X << 2) | (X >> 26)) & 0x0FFFFFFF;
Y = ((Y << 2) | (Y >> 26)) & 0x0FFFFFFF;
}
*SK++ = ((X << 4) & 0x24000000) | ((X << 28) & 0x10000000)
| ((X << 14) & 0x08000000) | ((X << 18) & 0x02080000)
| ((X << 6) & 0x01000000) | ((X << 9) & 0x00200000)
| ((X >> 1) & 0x00100000) | ((X << 10) & 0x00040000)
| ((X << 2) & 0x00020000) | ((X >> 10) & 0x00010000)
| ((Y >> 13) & 0x00002000) | ((Y >> 4) & 0x00001000)
| ((Y << 6) & 0x00000800) | ((Y >> 1) & 0x00000400)
| ((Y >> 14) & 0x00000200) | ((Y ) & 0x00000100)
| ((Y >> 5) & 0x00000020) | ((Y >> 10) & 0x00000010)
| ((Y >> 3) & 0x00000008) | ((Y >> 18) & 0x00000004)
| ((Y >> 26) & 0x00000002) | ((Y >> 24) & 0x00000001);
*SK++ = ((X << 15) & 0x20000000) | ((X << 17) & 0x10000000)
| ((X << 10) & 0x08000000) | ((X << 22) & 0x04000000)
| ((X >> 2) & 0x02000000) | ((X << 1) & 0x01000000)
| ((X << 16) & 0x00200000) | ((X << 11) & 0x00100000)
| ((X << 3) & 0x00080000) | ((X >> 6) & 0x00040000)
| ((X << 15) & 0x00020000) | ((X >> 4) & 0x00010000)
| ((Y >> 2) & 0x00002000) | ((Y << 8) & 0x00001000)
| ((Y >> 14) & 0x00000808) | ((Y >> 9) & 0x00000400)
| ((Y ) & 0x00000200) | ((Y << 7) & 0x00000100)
| ((Y >> 7) & 0x00000020) | ((Y >> 3) & 0x00000011)
| ((Y << 2) & 0x00000004) | ((Y >> 21) & 0x00000002);
}
}
#endif /* !MBEDTLS_DES_SETKEY_ALT */
/*
* DES key schedule (56-bit, encryption)
*/
int mbedtls_des_setkey_enc( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
{
mbedtls_des_setkey( ctx->sk, key );
return( 0 );
}
/*
* DES key schedule (56-bit, decryption)
*/
int mbedtls_des_setkey_dec( mbedtls_des_context *ctx, const unsigned char key[MBEDTLS_DES_KEY_SIZE] )
{
int i;
mbedtls_des_setkey( ctx->sk, key );
for( i = 0; i < 16; i += 2 )
{
SWAP( ctx->sk[i ], ctx->sk[30 - i] );
SWAP( ctx->sk[i + 1], ctx->sk[31 - i] );
}
return( 0 );
}
static void des3_set2key( uint32_t esk[96],
uint32_t dsk[96],
const unsigned char key[MBEDTLS_DES_KEY_SIZE*2] )
{
int i;
mbedtls_des_setkey( esk, key );
mbedtls_des_setkey( dsk + 32, key + 8 );
for( i = 0; i < 32; i += 2 )
{
dsk[i ] = esk[30 - i];
dsk[i + 1] = esk[31 - i];
esk[i + 32] = dsk[62 - i];
esk[i + 33] = dsk[63 - i];
esk[i + 64] = esk[i ];
esk[i + 65] = esk[i + 1];
dsk[i + 64] = dsk[i ];
dsk[i + 65] = dsk[i + 1];
}
}
/*
* Triple-DES key schedule (112-bit, encryption)
*/
int mbedtls_des3_set2key_enc( mbedtls_des3_context *ctx,
const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] )
{
uint32_t sk[96];
des3_set2key( ctx->sk, sk, key );
mbedtls_platform_zeroize( sk, sizeof( sk ) );
return( 0 );
}
/*
* Triple-DES key schedule (112-bit, decryption)
*/
int mbedtls_des3_set2key_dec( mbedtls_des3_context *ctx,
const unsigned char key[MBEDTLS_DES_KEY_SIZE * 2] )
{
uint32_t sk[96];
des3_set2key( sk, ctx->sk, key );
mbedtls_platform_zeroize( sk, sizeof( sk ) );
return( 0 );
}
static void des3_set3key( uint32_t esk[96],
uint32_t dsk[96],
const unsigned char key[24] )
{
int i;
mbedtls_des_setkey( esk, key );
mbedtls_des_setkey( dsk + 32, key + 8 );
mbedtls_des_setkey( esk + 64, key + 16 );
for( i = 0; i < 32; i += 2 )
{
dsk[i ] = esk[94 - i];
dsk[i + 1] = esk[95 - i];
esk[i + 32] = dsk[62 - i];
esk[i + 33] = dsk[63 - i];
dsk[i + 64] = esk[30 - i];
dsk[i + 65] = esk[31 - i];
}
}
/*
* Triple-DES key schedule (168-bit, encryption)
*/
int mbedtls_des3_set3key_enc( mbedtls_des3_context *ctx,
const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] )
{
uint32_t sk[96];
des3_set3key( ctx->sk, sk, key );
mbedtls_platform_zeroize( sk, sizeof( sk ) );
return( 0 );
}
/*
* Triple-DES key schedule (168-bit, decryption)
*/
int mbedtls_des3_set3key_dec( mbedtls_des3_context *ctx,
const unsigned char key[MBEDTLS_DES_KEY_SIZE * 3] )
{
uint32_t sk[96];
des3_set3key( sk, ctx->sk, key );
mbedtls_platform_zeroize( sk, sizeof( sk ) );
return( 0 );
}
/*
* DES-ECB block encryption/decryption
*/
#if !defined(MBEDTLS_DES_CRYPT_ECB_ALT)
int mbedtls_des_crypt_ecb( mbedtls_des_context *ctx,
const unsigned char input[8],
unsigned char output[8] )
{
int i;
uint32_t X, Y, T, *SK;
SK = ctx->sk;
GET_UINT32_BE( X, input, 0 );
GET_UINT32_BE( Y, input, 4 );
DES_IP( X, Y );
for( i = 0; i < 8; i++ )
{
DES_ROUND( Y, X );
DES_ROUND( X, Y );
}
DES_FP( Y, X );
PUT_UINT32_BE( Y, output, 0 );
PUT_UINT32_BE( X, output, 4 );
return( 0 );
}
#endif /* !MBEDTLS_DES_CRYPT_ECB_ALT */
#if defined(MBEDTLS_CIPHER_MODE_CBC)
/*
* DES-CBC buffer encryption/decryption
*/
int mbedtls_des_crypt_cbc( mbedtls_des_context *ctx,
int mode,
size_t length,
unsigned char iv[8],
const unsigned char *input,
unsigned char *output )
{
int i;
unsigned char temp[8];
if( length % 8 )
return( MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH );
if( mode == MBEDTLS_DES_ENCRYPT )
{
while( length > 0 )
{
for( i = 0; i < 8; i++ )
output[i] = (unsigned char)( input[i] ^ iv[i] );
mbedtls_des_crypt_ecb( ctx, output, output );
memcpy( iv, output, 8 );
input += 8;
output += 8;
length -= 8;
}
}
else /* MBEDTLS_DES_DECRYPT */
{
while( length > 0 )
{
memcpy( temp, input, 8 );
mbedtls_des_crypt_ecb( ctx, input, output );
for( i = 0; i < 8; i++ )
output[i] = (unsigned char)( output[i] ^ iv[i] );
memcpy( iv, temp, 8 );
input += 8;
output += 8;
length -= 8;
}
}
return( 0 );
}
#endif /* MBEDTLS_CIPHER_MODE_CBC */
/*
* 3DES-ECB block encryption/decryption
*/
#if !defined(MBEDTLS_DES3_CRYPT_ECB_ALT)
int mbedtls_des3_crypt_ecb( mbedtls_des3_context *ctx,
const unsigned char input[8],
unsigned char output[8] )
{
int i;
uint32_t X, Y, T, *SK;
SK = ctx->sk;
GET_UINT32_BE( X, input, 0 );
GET_UINT32_BE( Y, input, 4 );
DES_IP( X, Y );
for( i = 0; i < 8; i++ )
{
DES_ROUND( Y, X );
DES_ROUND( X, Y );
}
for( i = 0; i < 8; i++ )
{
DES_ROUND( X, Y );
DES_ROUND( Y, X );
}
for( i = 0; i < 8; i++ )
{
DES_ROUND( Y, X );
DES_ROUND( X, Y );
}
DES_FP( Y, X );
PUT_UINT32_BE( Y, output, 0 );
PUT_UINT32_BE( X, output, 4 );
return( 0 );
}
#endif /* !MBEDTLS_DES3_CRYPT_ECB_ALT */
#if defined(MBEDTLS_CIPHER_MODE_CBC)
/*
* 3DES-CBC buffer encryption/decryption
*/
int mbedtls_des3_crypt_cbc( mbedtls_des3_context *ctx,
int mode,
size_t length,
unsigned char iv[8],
const unsigned char *input,
unsigned char *output )
{
int i;
unsigned char temp[8];
if( length % 8 )
return( MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH );
if( mode == MBEDTLS_DES_ENCRYPT )
{
while( length > 0 )
{
for( i = 0; i < 8; i++ )
output[i] = (unsigned char)( input[i] ^ iv[i] );
mbedtls_des3_crypt_ecb( ctx, output, output );
memcpy( iv, output, 8 );
input += 8;
output += 8;
length -= 8;
}
}
else /* MBEDTLS_DES_DECRYPT */
{
while( length > 0 )
{
memcpy( temp, input, 8 );
mbedtls_des3_crypt_ecb( ctx, input, output );
for( i = 0; i < 8; i++ )
output[i] = (unsigned char)( output[i] ^ iv[i] );
memcpy( iv, temp, 8 );
input += 8;
output += 8;
length -= 8;
}
}
return( 0 );
}
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* !MBEDTLS_DES_ALT */
#if defined(MBEDTLS_SELF_TEST)
/*
* DES and 3DES test vectors from:
*
* http://csrc.nist.gov/groups/STM/cavp/documents/des/tripledes-vectors.zip
*/
static const unsigned char des3_test_keys[24] =
{
0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF,
0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01,
0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF, 0x01, 0x23
};
static const unsigned char des3_test_buf[8] =
{
0x4E, 0x6F, 0x77, 0x20, 0x69, 0x73, 0x20, 0x74
};
static const unsigned char des3_test_ecb_dec[3][8] =
{
{ 0xCD, 0xD6, 0x4F, 0x2F, 0x94, 0x27, 0xC1, 0x5D },
{ 0x69, 0x96, 0xC8, 0xFA, 0x47, 0xA2, 0xAB, 0xEB },
{ 0x83, 0x25, 0x39, 0x76, 0x44, 0x09, 0x1A, 0x0A }
};
static const unsigned char des3_test_ecb_enc[3][8] =
{
{ 0x6A, 0x2A, 0x19, 0xF4, 0x1E, 0xCA, 0x85, 0x4B },
{ 0x03, 0xE6, 0x9F, 0x5B, 0xFA, 0x58, 0xEB, 0x42 },
{ 0xDD, 0x17, 0xE8, 0xB8, 0xB4, 0x37, 0xD2, 0x32 }
};
#if defined(MBEDTLS_CIPHER_MODE_CBC)
static const unsigned char des3_test_iv[8] =
{
0x12, 0x34, 0x56, 0x78, 0x90, 0xAB, 0xCD, 0xEF,
};
static const unsigned char des3_test_cbc_dec[3][8] =
{
{ 0x12, 0x9F, 0x40, 0xB9, 0xD2, 0x00, 0x56, 0xB3 },
{ 0x47, 0x0E, 0xFC, 0x9A, 0x6B, 0x8E, 0xE3, 0x93 },
{ 0xC5, 0xCE, 0xCF, 0x63, 0xEC, 0xEC, 0x51, 0x4C }
};
static const unsigned char des3_test_cbc_enc[3][8] =
{
{ 0x54, 0xF1, 0x5A, 0xF6, 0xEB, 0xE3, 0xA4, 0xB4 },
{ 0x35, 0x76, 0x11, 0x56, 0x5F, 0xA1, 0x8E, 0x4D },
{ 0xCB, 0x19, 0x1F, 0x85, 0xD1, 0xED, 0x84, 0x39 }
};
#endif /* MBEDTLS_CIPHER_MODE_CBC */
/*
* Checkup routine
*/
int mbedtls_des_self_test( int verbose )
{
int i, j, u, v, ret = 0;
mbedtls_des_context ctx;
mbedtls_des3_context ctx3;
unsigned char buf[8];
#if defined(MBEDTLS_CIPHER_MODE_CBC)
unsigned char prv[8];
unsigned char iv[8];
#endif
mbedtls_des_init( &ctx );
mbedtls_des3_init( &ctx3 );
/*
* ECB mode
*/
for( i = 0; i < 6; i++ )
{
u = i >> 1;
v = i & 1;
if( verbose != 0 )
mbedtls_printf( " DES%c-ECB-%3d (%s): ",
( u == 0 ) ? ' ' : '3', 56 + u * 56,
( v == MBEDTLS_DES_DECRYPT ) ? "dec" : "enc" );
memcpy( buf, des3_test_buf, 8 );
switch( i )
{
case 0:
mbedtls_des_setkey_dec( &ctx, des3_test_keys );
break;
case 1:
mbedtls_des_setkey_enc( &ctx, des3_test_keys );
break;
case 2:
mbedtls_des3_set2key_dec( &ctx3, des3_test_keys );
break;
case 3:
mbedtls_des3_set2key_enc( &ctx3, des3_test_keys );
break;
case 4:
mbedtls_des3_set3key_dec( &ctx3, des3_test_keys );
break;
case 5:
mbedtls_des3_set3key_enc( &ctx3, des3_test_keys );
break;
default:
return( 1 );
}
for( j = 0; j < 10000; j++ )
{
if( u == 0 )
mbedtls_des_crypt_ecb( &ctx, buf, buf );
else
mbedtls_des3_crypt_ecb( &ctx3, buf, buf );
}
if( ( v == MBEDTLS_DES_DECRYPT &&
memcmp( buf, des3_test_ecb_dec[u], 8 ) != 0 ) ||
( v != MBEDTLS_DES_DECRYPT &&
memcmp( buf, des3_test_ecb_enc[u], 8 ) != 0 ) )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto exit;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
#if defined(MBEDTLS_CIPHER_MODE_CBC)
/*
* CBC mode
*/
for( i = 0; i < 6; i++ )
{
u = i >> 1;
v = i & 1;
if( verbose != 0 )
mbedtls_printf( " DES%c-CBC-%3d (%s): ",
( u == 0 ) ? ' ' : '3', 56 + u * 56,
( v == MBEDTLS_DES_DECRYPT ) ? "dec" : "enc" );
memcpy( iv, des3_test_iv, 8 );
memcpy( prv, des3_test_iv, 8 );
memcpy( buf, des3_test_buf, 8 );
switch( i )
{
case 0:
mbedtls_des_setkey_dec( &ctx, des3_test_keys );
break;
case 1:
mbedtls_des_setkey_enc( &ctx, des3_test_keys );
break;
case 2:
mbedtls_des3_set2key_dec( &ctx3, des3_test_keys );
break;
case 3:
mbedtls_des3_set2key_enc( &ctx3, des3_test_keys );
break;
case 4:
mbedtls_des3_set3key_dec( &ctx3, des3_test_keys );
break;
case 5:
mbedtls_des3_set3key_enc( &ctx3, des3_test_keys );
break;
default:
return( 1 );
}
if( v == MBEDTLS_DES_DECRYPT )
{
for( j = 0; j < 10000; j++ )
{
if( u == 0 )
mbedtls_des_crypt_cbc( &ctx, v, 8, iv, buf, buf );
else
mbedtls_des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf );
}
}
else
{
for( j = 0; j < 10000; j++ )
{
unsigned char tmp[8];
if( u == 0 )
mbedtls_des_crypt_cbc( &ctx, v, 8, iv, buf, buf );
else
mbedtls_des3_crypt_cbc( &ctx3, v, 8, iv, buf, buf );
memcpy( tmp, prv, 8 );
memcpy( prv, buf, 8 );
memcpy( buf, tmp, 8 );
}
memcpy( buf, prv, 8 );
}
if( ( v == MBEDTLS_DES_DECRYPT &&
memcmp( buf, des3_test_cbc_dec[u], 8 ) != 0 ) ||
( v != MBEDTLS_DES_DECRYPT &&
memcmp( buf, des3_test_cbc_enc[u], 8 ) != 0 ) )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto exit;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
#endif /* MBEDTLS_CIPHER_MODE_CBC */
if( verbose != 0 )
mbedtls_printf( "\n" );
exit:
mbedtls_des_free( &ctx );
mbedtls_des3_free( &ctx3 );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_DES_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/des.c | C | apache-2.0 | 31,748 |
/*
* Diffie-Hellman-Merkle key exchange
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The following sources were referenced in the design of this implementation
* of the Diffie-Hellman-Merkle algorithm:
*
* [1] Handbook of Applied Cryptography - 1997, Chapter 12
* Menezes, van Oorschot and Vanstone
*
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_DHM_C)
#include "mbedtls/dhm.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_PEM_PARSE_C)
#include "mbedtls/pem.h"
#endif
#if defined(MBEDTLS_ASN1_PARSE_C)
#include "mbedtls/asn1.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#include <stdio.h>
#define mbedtls_printf printf
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#if !defined(MBEDTLS_DHM_ALT)
#define DHM_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_DHM_BAD_INPUT_DATA )
#define DHM_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
/*
* helper to validate the mbedtls_mpi size and import it
*/
static int dhm_read_bignum( mbedtls_mpi *X,
unsigned char **p,
const unsigned char *end )
{
int ret, n;
if( end - *p < 2 )
return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA );
n = ( (*p)[0] << 8 ) | (*p)[1];
(*p) += 2;
if( (int)( end - *p ) < n )
return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA );
if( ( ret = mbedtls_mpi_read_binary( X, *p, n ) ) != 0 )
return( MBEDTLS_ERR_DHM_READ_PARAMS_FAILED + ret );
(*p) += n;
return( 0 );
}
/*
* Verify sanity of parameter with regards to P
*
* Parameter should be: 2 <= public_param <= P - 2
*
* This means that we need to return an error if
* public_param < 2 or public_param > P-2
*
* For more information on the attack, see:
* http://www.cl.cam.ac.uk/~rja14/Papers/psandqs.pdf
* http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2005-2643
*/
static int dhm_check_range( const mbedtls_mpi *param, const mbedtls_mpi *P )
{
mbedtls_mpi L, U;
int ret = 0;
mbedtls_mpi_init( &L ); mbedtls_mpi_init( &U );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &L, 2 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &U, P, 2 ) );
if( mbedtls_mpi_cmp_mpi( param, &L ) < 0 ||
mbedtls_mpi_cmp_mpi( param, &U ) > 0 )
{
ret = MBEDTLS_ERR_DHM_BAD_INPUT_DATA;
}
cleanup:
mbedtls_mpi_free( &L ); mbedtls_mpi_free( &U );
return( ret );
}
void mbedtls_dhm_init( mbedtls_dhm_context *ctx )
{
DHM_VALIDATE( ctx != NULL );
memset( ctx, 0, sizeof( mbedtls_dhm_context ) );
}
/*
* Parse the ServerKeyExchange parameters
*/
int mbedtls_dhm_read_params( mbedtls_dhm_context *ctx,
unsigned char **p,
const unsigned char *end )
{
int ret;
DHM_VALIDATE_RET( ctx != NULL );
DHM_VALIDATE_RET( p != NULL && *p != NULL );
DHM_VALIDATE_RET( end != NULL );
if( ( ret = dhm_read_bignum( &ctx->P, p, end ) ) != 0 ||
( ret = dhm_read_bignum( &ctx->G, p, end ) ) != 0 ||
( ret = dhm_read_bignum( &ctx->GY, p, end ) ) != 0 )
return( ret );
if( ( ret = dhm_check_range( &ctx->GY, &ctx->P ) ) != 0 )
return( ret );
ctx->len = mbedtls_mpi_size( &ctx->P );
return( 0 );
}
/*
* Setup and write the ServerKeyExchange parameters
*/
int mbedtls_dhm_make_params( mbedtls_dhm_context *ctx, int x_size,
unsigned char *output, size_t *olen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret, count = 0;
size_t n1, n2, n3;
unsigned char *p;
DHM_VALIDATE_RET( ctx != NULL );
DHM_VALIDATE_RET( output != NULL );
DHM_VALIDATE_RET( olen != NULL );
DHM_VALIDATE_RET( f_rng != NULL );
if( mbedtls_mpi_cmp_int( &ctx->P, 0 ) == 0 )
return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA );
/*
* Generate X as large as possible ( < P )
*/
do
{
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &ctx->X, x_size, f_rng, p_rng ) );
while( mbedtls_mpi_cmp_mpi( &ctx->X, &ctx->P ) >= 0 )
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &ctx->X, 1 ) );
if( count++ > 10 )
return( MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED );
}
while( dhm_check_range( &ctx->X, &ctx->P ) != 0 );
/*
* Calculate GX = G^X mod P
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->GX, &ctx->G, &ctx->X,
&ctx->P , &ctx->RP ) );
if( ( ret = dhm_check_range( &ctx->GX, &ctx->P ) ) != 0 )
return( ret );
/*
* export P, G, GX
*/
#define DHM_MPI_EXPORT( X, n ) \
do { \
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( ( X ), \
p + 2, \
( n ) ) ); \
*p++ = (unsigned char)( ( n ) >> 8 ); \
*p++ = (unsigned char)( ( n ) ); \
p += ( n ); \
} while( 0 )
n1 = mbedtls_mpi_size( &ctx->P );
n2 = mbedtls_mpi_size( &ctx->G );
n3 = mbedtls_mpi_size( &ctx->GX );
p = output;
DHM_MPI_EXPORT( &ctx->P , n1 );
DHM_MPI_EXPORT( &ctx->G , n2 );
DHM_MPI_EXPORT( &ctx->GX, n3 );
*olen = p - output;
ctx->len = n1;
cleanup:
if( ret != 0 )
return( MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED + ret );
return( 0 );
}
/*
* Set prime modulus and generator
*/
int mbedtls_dhm_set_group( mbedtls_dhm_context *ctx,
const mbedtls_mpi *P,
const mbedtls_mpi *G )
{
int ret;
DHM_VALIDATE_RET( ctx != NULL );
DHM_VALIDATE_RET( P != NULL );
DHM_VALIDATE_RET( G != NULL );
if( ( ret = mbedtls_mpi_copy( &ctx->P, P ) ) != 0 ||
( ret = mbedtls_mpi_copy( &ctx->G, G ) ) != 0 )
{
return( MBEDTLS_ERR_DHM_SET_GROUP_FAILED + ret );
}
ctx->len = mbedtls_mpi_size( &ctx->P );
return( 0 );
}
/*
* Import the peer's public value G^Y
*/
int mbedtls_dhm_read_public( mbedtls_dhm_context *ctx,
const unsigned char *input, size_t ilen )
{
int ret;
DHM_VALIDATE_RET( ctx != NULL );
DHM_VALIDATE_RET( input != NULL );
if( ilen < 1 || ilen > ctx->len )
return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA );
if( ( ret = mbedtls_mpi_read_binary( &ctx->GY, input, ilen ) ) != 0 )
return( MBEDTLS_ERR_DHM_READ_PUBLIC_FAILED + ret );
return( 0 );
}
/*
* Create own private value X and export G^X
*/
int mbedtls_dhm_make_public( mbedtls_dhm_context *ctx, int x_size,
unsigned char *output, size_t olen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret, count = 0;
DHM_VALIDATE_RET( ctx != NULL );
DHM_VALIDATE_RET( output != NULL );
DHM_VALIDATE_RET( f_rng != NULL );
if( olen < 1 || olen > ctx->len )
return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA );
if( mbedtls_mpi_cmp_int( &ctx->P, 0 ) == 0 )
return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA );
/*
* generate X and calculate GX = G^X mod P
*/
do
{
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &ctx->X, x_size, f_rng, p_rng ) );
while( mbedtls_mpi_cmp_mpi( &ctx->X, &ctx->P ) >= 0 )
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &ctx->X, 1 ) );
if( count++ > 10 )
return( MBEDTLS_ERR_DHM_MAKE_PUBLIC_FAILED );
}
while( dhm_check_range( &ctx->X, &ctx->P ) != 0 );
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->GX, &ctx->G, &ctx->X,
&ctx->P , &ctx->RP ) );
if( ( ret = dhm_check_range( &ctx->GX, &ctx->P ) ) != 0 )
return( ret );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->GX, output, olen ) );
cleanup:
if( ret != 0 )
return( MBEDTLS_ERR_DHM_MAKE_PUBLIC_FAILED + ret );
return( 0 );
}
/*
* Use the blinding method and optimisation suggested in section 10 of:
* KOCHER, Paul C. Timing attacks on implementations of Diffie-Hellman, RSA,
* DSS, and other systems. In : Advances in Cryptology-CRYPTO'96. Springer
* Berlin Heidelberg, 1996. p. 104-113.
*/
static int dhm_update_blinding( mbedtls_dhm_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
int ret, count;
/*
* Don't use any blinding the first time a particular X is used,
* but remember it to use blinding next time.
*/
if( mbedtls_mpi_cmp_mpi( &ctx->X, &ctx->pX ) != 0 )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &ctx->pX, &ctx->X ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &ctx->Vi, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &ctx->Vf, 1 ) );
return( 0 );
}
/*
* Ok, we need blinding. Can we re-use existing values?
* If yes, just update them by squaring them.
*/
if( mbedtls_mpi_cmp_int( &ctx->Vi, 1 ) != 0 )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vi, &ctx->Vi, &ctx->Vi ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vi, &ctx->Vi, &ctx->P ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vf, &ctx->Vf, &ctx->Vf ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vf, &ctx->Vf, &ctx->P ) );
return( 0 );
}
/*
* We need to generate blinding values from scratch
*/
/* Vi = random( 2, P-1 ) */
count = 0;
do
{
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &ctx->Vi, mbedtls_mpi_size( &ctx->P ), f_rng, p_rng ) );
while( mbedtls_mpi_cmp_mpi( &ctx->Vi, &ctx->P ) >= 0 )
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &ctx->Vi, 1 ) );
if( count++ > 10 )
return( MBEDTLS_ERR_MPI_NOT_ACCEPTABLE );
}
while( mbedtls_mpi_cmp_int( &ctx->Vi, 1 ) <= 0 );
/* Vf = Vi^-X mod P */
MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &ctx->Vf, &ctx->Vi, &ctx->P ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->Vf, &ctx->Vf, &ctx->X, &ctx->P, &ctx->RP ) );
cleanup:
return( ret );
}
/*
* Derive and export the shared secret (G^Y)^X mod P
*/
int mbedtls_dhm_calc_secret( mbedtls_dhm_context *ctx,
unsigned char *output, size_t output_size, size_t *olen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
mbedtls_mpi GYb;
DHM_VALIDATE_RET( ctx != NULL );
DHM_VALIDATE_RET( output != NULL );
DHM_VALIDATE_RET( olen != NULL );
if( output_size < ctx->len )
return( MBEDTLS_ERR_DHM_BAD_INPUT_DATA );
if( ( ret = dhm_check_range( &ctx->GY, &ctx->P ) ) != 0 )
return( ret );
mbedtls_mpi_init( &GYb );
/* Blind peer's value */
if( f_rng != NULL )
{
MBEDTLS_MPI_CHK( dhm_update_blinding( ctx, f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &GYb, &ctx->GY, &ctx->Vi ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &GYb, &GYb, &ctx->P ) );
}
else
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &GYb, &ctx->GY ) );
/* Do modular exponentiation */
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->K, &GYb, &ctx->X,
&ctx->P, &ctx->RP ) );
/* Unblind secret value */
if( f_rng != NULL )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->K, &ctx->K, &ctx->Vf ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->K, &ctx->K, &ctx->P ) );
}
*olen = mbedtls_mpi_size( &ctx->K );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->K, output, *olen ) );
cleanup:
mbedtls_mpi_free( &GYb );
if( ret != 0 )
return( MBEDTLS_ERR_DHM_CALC_SECRET_FAILED + ret );
return( 0 );
}
/*
* Free the components of a DHM key
*/
void mbedtls_dhm_free( mbedtls_dhm_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_mpi_free( &ctx->pX );
mbedtls_mpi_free( &ctx->Vf );
mbedtls_mpi_free( &ctx->Vi );
mbedtls_mpi_free( &ctx->RP );
mbedtls_mpi_free( &ctx->K );
mbedtls_mpi_free( &ctx->GY );
mbedtls_mpi_free( &ctx->GX );
mbedtls_mpi_free( &ctx->X );
mbedtls_mpi_free( &ctx->G );
mbedtls_mpi_free( &ctx->P );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_dhm_context ) );
}
#if defined(MBEDTLS_ASN1_PARSE_C)
/*
* Parse DHM parameters
*/
int mbedtls_dhm_parse_dhm( mbedtls_dhm_context *dhm, const unsigned char *dhmin,
size_t dhminlen )
{
int ret;
size_t len;
unsigned char *p, *end;
#if defined(MBEDTLS_PEM_PARSE_C)
mbedtls_pem_context pem;
#endif /* MBEDTLS_PEM_PARSE_C */
DHM_VALIDATE_RET( dhm != NULL );
DHM_VALIDATE_RET( dhmin != NULL );
#if defined(MBEDTLS_PEM_PARSE_C)
mbedtls_pem_init( &pem );
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
if( dhminlen == 0 || dhmin[dhminlen - 1] != '\0' )
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
else
ret = mbedtls_pem_read_buffer( &pem,
"-----BEGIN DH PARAMETERS-----",
"-----END DH PARAMETERS-----",
dhmin, NULL, 0, &dhminlen );
if( ret == 0 )
{
/*
* Was PEM encoded
*/
dhminlen = pem.buflen;
}
else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
goto exit;
p = ( ret == 0 ) ? pem.buf : (unsigned char *) dhmin;
#else
p = (unsigned char *) dhmin;
#endif /* MBEDTLS_PEM_PARSE_C */
end = p + dhminlen;
/*
* DHParams ::= SEQUENCE {
* prime INTEGER, -- P
* generator INTEGER, -- g
* privateValueLength INTEGER OPTIONAL
* }
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
ret = MBEDTLS_ERR_DHM_INVALID_FORMAT + ret;
goto exit;
}
end = p + len;
if( ( ret = mbedtls_asn1_get_mpi( &p, end, &dhm->P ) ) != 0 ||
( ret = mbedtls_asn1_get_mpi( &p, end, &dhm->G ) ) != 0 )
{
ret = MBEDTLS_ERR_DHM_INVALID_FORMAT + ret;
goto exit;
}
if( p != end )
{
/* This might be the optional privateValueLength.
* If so, we can cleanly discard it */
mbedtls_mpi rec;
mbedtls_mpi_init( &rec );
ret = mbedtls_asn1_get_mpi( &p, end, &rec );
mbedtls_mpi_free( &rec );
if ( ret != 0 )
{
ret = MBEDTLS_ERR_DHM_INVALID_FORMAT + ret;
goto exit;
}
if ( p != end )
{
ret = MBEDTLS_ERR_DHM_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH;
goto exit;
}
}
ret = 0;
dhm->len = mbedtls_mpi_size( &dhm->P );
exit:
#if defined(MBEDTLS_PEM_PARSE_C)
mbedtls_pem_free( &pem );
#endif
if( ret != 0 )
mbedtls_dhm_free( dhm );
return( ret );
}
#if defined(MBEDTLS_FS_IO)
/*
* Load all data from a file into a given buffer.
*
* The file is expected to contain either PEM or DER encoded data.
* A terminating null byte is always appended. It is included in the announced
* length only if the data looks like it is PEM encoded.
*/
static int load_file( const char *path, unsigned char **buf, size_t *n )
{
FILE *f;
long size;
if( ( f = fopen( path, "rb" ) ) == NULL )
return( MBEDTLS_ERR_DHM_FILE_IO_ERROR );
fseek( f, 0, SEEK_END );
if( ( size = ftell( f ) ) == -1 )
{
fclose( f );
return( MBEDTLS_ERR_DHM_FILE_IO_ERROR );
}
fseek( f, 0, SEEK_SET );
*n = (size_t) size;
if( *n + 1 == 0 ||
( *buf = mbedtls_calloc( 1, *n + 1 ) ) == NULL )
{
fclose( f );
return( MBEDTLS_ERR_DHM_ALLOC_FAILED );
}
if( fread( *buf, 1, *n, f ) != *n )
{
fclose( f );
mbedtls_platform_zeroize( *buf, *n + 1 );
mbedtls_free( *buf );
return( MBEDTLS_ERR_DHM_FILE_IO_ERROR );
}
fclose( f );
(*buf)[*n] = '\0';
if( strstr( (const char *) *buf, "-----BEGIN " ) != NULL )
++*n;
return( 0 );
}
/*
* Load and parse DHM parameters
*/
int mbedtls_dhm_parse_dhmfile( mbedtls_dhm_context *dhm, const char *path )
{
int ret;
size_t n;
unsigned char *buf;
DHM_VALIDATE_RET( dhm != NULL );
DHM_VALIDATE_RET( path != NULL );
if( ( ret = load_file( path, &buf, &n ) ) != 0 )
return( ret );
ret = mbedtls_dhm_parse_dhm( dhm, buf, n );
mbedtls_platform_zeroize( buf, n );
mbedtls_free( buf );
return( ret );
}
#endif /* MBEDTLS_FS_IO */
#endif /* MBEDTLS_ASN1_PARSE_C */
#endif /* MBEDTLS_DHM_ALT */
#if defined(MBEDTLS_SELF_TEST)
static const char mbedtls_test_dhm_params[] =
"-----BEGIN DH PARAMETERS-----\r\n"
"MIGHAoGBAJ419DBEOgmQTzo5qXl5fQcN9TN455wkOL7052HzxxRVMyhYmwQcgJvh\r\n"
"1sa18fyfR9OiVEMYglOpkqVoGLN7qd5aQNNi5W7/C+VBdHTBJcGZJyyP5B3qcz32\r\n"
"9mLJKudlVudV0Qxk5qUJaPZ/xupz0NyoVpviuiBOI1gNi8ovSXWzAgEC\r\n"
"-----END DH PARAMETERS-----\r\n";
static const size_t mbedtls_test_dhm_params_len = sizeof( mbedtls_test_dhm_params );
/*
* Checkup routine
*/
int mbedtls_dhm_self_test( int verbose )
{
int ret;
mbedtls_dhm_context dhm;
mbedtls_dhm_init( &dhm );
if( verbose != 0 )
mbedtls_printf( " DHM parameter load: " );
if( ( ret = mbedtls_dhm_parse_dhm( &dhm,
(const unsigned char *) mbedtls_test_dhm_params,
mbedtls_test_dhm_params_len ) ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto exit;
}
if( verbose != 0 )
mbedtls_printf( "passed\n\n" );
exit:
mbedtls_dhm_free( &dhm );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_DHM_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/dhm.c | C | apache-2.0 | 18,851 |
/*
* Elliptic curve Diffie-Hellman
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* References:
*
* SEC1 http://www.secg.org/index.php?action=secg,docs_secg
* RFC 4492
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_ECDH_C)
#include "mbedtls/ecdh.h"
#include "mbedtls/platform_util.h"
#include <string.h>
/* Parameter validation macros based on platform_util.h */
#define ECDH_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_ECP_BAD_INPUT_DATA )
#define ECDH_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
typedef mbedtls_ecdh_context mbedtls_ecdh_context_mbed;
#endif
#if !defined(MBEDTLS_ECDH_GEN_PUBLIC_ALT)
/*
* Generate public key (restartable version)
*
* Note: this internal function relies on its caller preserving the value of
* the output parameter 'd' across continuation calls. This would not be
* acceptable for a public function but is OK here as we control call sites.
*/
static int ecdh_gen_public_restartable( mbedtls_ecp_group *grp,
mbedtls_mpi *d, mbedtls_ecp_point *Q,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
mbedtls_ecp_restart_ctx *rs_ctx )
{
int ret;
/* If multiplication is in progress, we already generated a privkey */
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx == NULL || rs_ctx->rsm == NULL )
#endif
MBEDTLS_MPI_CHK( mbedtls_ecp_gen_privkey( grp, d, f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_mul_restartable( grp, Q, d, &grp->G,
f_rng, p_rng, rs_ctx ) );
cleanup:
return( ret );
}
/*
* Generate public key
*/
int mbedtls_ecdh_gen_public( mbedtls_ecp_group *grp, mbedtls_mpi *d, mbedtls_ecp_point *Q,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
ECDH_VALIDATE_RET( grp != NULL );
ECDH_VALIDATE_RET( d != NULL );
ECDH_VALIDATE_RET( Q != NULL );
ECDH_VALIDATE_RET( f_rng != NULL );
return( ecdh_gen_public_restartable( grp, d, Q, f_rng, p_rng, NULL ) );
}
#endif /* !MBEDTLS_ECDH_GEN_PUBLIC_ALT */
#if !defined(MBEDTLS_ECDH_COMPUTE_SHARED_ALT)
/*
* Compute shared secret (SEC1 3.3.1)
*/
static int ecdh_compute_shared_restartable( mbedtls_ecp_group *grp,
mbedtls_mpi *z,
const mbedtls_ecp_point *Q, const mbedtls_mpi *d,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
mbedtls_ecp_restart_ctx *rs_ctx )
{
int ret;
mbedtls_ecp_point P;
mbedtls_ecp_point_init( &P );
MBEDTLS_MPI_CHK( mbedtls_ecp_mul_restartable( grp, &P, d, Q,
f_rng, p_rng, rs_ctx ) );
if( mbedtls_ecp_is_zero( &P ) )
{
ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( z, &P.X ) );
cleanup:
mbedtls_ecp_point_free( &P );
return( ret );
}
/*
* Compute shared secret (SEC1 3.3.1)
*/
int mbedtls_ecdh_compute_shared( mbedtls_ecp_group *grp, mbedtls_mpi *z,
const mbedtls_ecp_point *Q, const mbedtls_mpi *d,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
ECDH_VALIDATE_RET( grp != NULL );
ECDH_VALIDATE_RET( Q != NULL );
ECDH_VALIDATE_RET( d != NULL );
ECDH_VALIDATE_RET( z != NULL );
return( ecdh_compute_shared_restartable( grp, z, Q, d,
f_rng, p_rng, NULL ) );
}
#endif /* !MBEDTLS_ECDH_COMPUTE_SHARED_ALT */
static void ecdh_init_internal( mbedtls_ecdh_context_mbed *ctx )
{
mbedtls_ecp_group_init( &ctx->grp );
mbedtls_mpi_init( &ctx->d );
mbedtls_ecp_point_init( &ctx->Q );
mbedtls_ecp_point_init( &ctx->Qp );
mbedtls_mpi_init( &ctx->z );
#if defined(MBEDTLS_ECP_RESTARTABLE)
mbedtls_ecp_restart_init( &ctx->rs );
#endif
}
/*
* Initialize context
*/
void mbedtls_ecdh_init( mbedtls_ecdh_context *ctx )
{
ECDH_VALIDATE( ctx != NULL );
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
ecdh_init_internal( ctx );
mbedtls_ecp_point_init( &ctx->Vi );
mbedtls_ecp_point_init( &ctx->Vf );
mbedtls_mpi_init( &ctx->_d );
#else
memset( ctx, 0, sizeof( mbedtls_ecdh_context ) );
ctx->var = MBEDTLS_ECDH_VARIANT_NONE;
#endif
ctx->point_format = MBEDTLS_ECP_PF_UNCOMPRESSED;
#if defined(MBEDTLS_ECP_RESTARTABLE)
ctx->restart_enabled = 0;
#endif
}
static int ecdh_setup_internal( mbedtls_ecdh_context_mbed *ctx,
mbedtls_ecp_group_id grp_id )
{
int ret;
ret = mbedtls_ecp_group_load( &ctx->grp, grp_id );
if( ret != 0 )
{
return( MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE );
}
return( 0 );
}
/*
* Setup context
*/
int mbedtls_ecdh_setup( mbedtls_ecdh_context *ctx, mbedtls_ecp_group_id grp_id )
{
ECDH_VALIDATE_RET( ctx != NULL );
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
return( ecdh_setup_internal( ctx, grp_id ) );
#else
switch( grp_id )
{
default:
ctx->point_format = MBEDTLS_ECP_PF_UNCOMPRESSED;
ctx->var = MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0;
ctx->grp_id = grp_id;
ecdh_init_internal( &ctx->ctx.mbed_ecdh );
return( ecdh_setup_internal( &ctx->ctx.mbed_ecdh, grp_id ) );
}
#endif
}
static void ecdh_free_internal( mbedtls_ecdh_context_mbed *ctx )
{
mbedtls_ecp_group_free( &ctx->grp );
mbedtls_mpi_free( &ctx->d );
mbedtls_ecp_point_free( &ctx->Q );
mbedtls_ecp_point_free( &ctx->Qp );
mbedtls_mpi_free( &ctx->z );
#if defined(MBEDTLS_ECP_RESTARTABLE)
mbedtls_ecp_restart_free( &ctx->rs );
#endif
}
#if defined(MBEDTLS_ECP_RESTARTABLE)
/*
* Enable restartable operations for context
*/
void mbedtls_ecdh_enable_restart( mbedtls_ecdh_context *ctx )
{
ECDH_VALIDATE( ctx != NULL );
ctx->restart_enabled = 1;
}
#endif
/*
* Free context
*/
void mbedtls_ecdh_free( mbedtls_ecdh_context *ctx )
{
if( ctx == NULL )
return;
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
mbedtls_ecp_point_free( &ctx->Vi );
mbedtls_ecp_point_free( &ctx->Vf );
mbedtls_mpi_free( &ctx->_d );
ecdh_free_internal( ctx );
#else
switch( ctx->var )
{
case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
ecdh_free_internal( &ctx->ctx.mbed_ecdh );
break;
default:
break;
}
ctx->point_format = MBEDTLS_ECP_PF_UNCOMPRESSED;
ctx->var = MBEDTLS_ECDH_VARIANT_NONE;
ctx->grp_id = MBEDTLS_ECP_DP_NONE;
#endif
}
static int ecdh_make_params_internal( mbedtls_ecdh_context_mbed *ctx,
size_t *olen, int point_format,
unsigned char *buf, size_t blen,
int (*f_rng)(void *,
unsigned char *,
size_t),
void *p_rng,
int restart_enabled )
{
int ret;
size_t grp_len, pt_len;
#if defined(MBEDTLS_ECP_RESTARTABLE)
mbedtls_ecp_restart_ctx *rs_ctx = NULL;
#endif
if( ctx->grp.pbits == 0 )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( restart_enabled )
rs_ctx = &ctx->rs;
#else
(void) restart_enabled;
#endif
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( ( ret = ecdh_gen_public_restartable( &ctx->grp, &ctx->d, &ctx->Q,
f_rng, p_rng, rs_ctx ) ) != 0 )
return( ret );
#else
if( ( ret = mbedtls_ecdh_gen_public( &ctx->grp, &ctx->d, &ctx->Q,
f_rng, p_rng ) ) != 0 )
return( ret );
#endif /* MBEDTLS_ECP_RESTARTABLE */
if( ( ret = mbedtls_ecp_tls_write_group( &ctx->grp, &grp_len, buf,
blen ) ) != 0 )
return( ret );
buf += grp_len;
blen -= grp_len;
if( ( ret = mbedtls_ecp_tls_write_point( &ctx->grp, &ctx->Q, point_format,
&pt_len, buf, blen ) ) != 0 )
return( ret );
*olen = grp_len + pt_len;
return( 0 );
}
/*
* Setup and write the ServerKeyExhange parameters (RFC 4492)
* struct {
* ECParameters curve_params;
* ECPoint public;
* } ServerECDHParams;
*/
int mbedtls_ecdh_make_params( mbedtls_ecdh_context *ctx, size_t *olen,
unsigned char *buf, size_t blen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int restart_enabled = 0;
ECDH_VALIDATE_RET( ctx != NULL );
ECDH_VALIDATE_RET( olen != NULL );
ECDH_VALIDATE_RET( buf != NULL );
ECDH_VALIDATE_RET( f_rng != NULL );
#if defined(MBEDTLS_ECP_RESTARTABLE)
restart_enabled = ctx->restart_enabled;
#else
(void) restart_enabled;
#endif
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
return( ecdh_make_params_internal( ctx, olen, ctx->point_format, buf, blen,
f_rng, p_rng, restart_enabled ) );
#else
switch( ctx->var )
{
case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
return( ecdh_make_params_internal( &ctx->ctx.mbed_ecdh, olen,
ctx->point_format, buf, blen,
f_rng, p_rng,
restart_enabled ) );
default:
return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
}
#endif
}
static int ecdh_read_params_internal( mbedtls_ecdh_context_mbed *ctx,
const unsigned char **buf,
const unsigned char *end )
{
return( mbedtls_ecp_tls_read_point( &ctx->grp, &ctx->Qp, buf,
end - *buf ) );
}
/*
* Read the ServerKeyExhange parameters (RFC 4492)
* struct {
* ECParameters curve_params;
* ECPoint public;
* } ServerECDHParams;
*/
int mbedtls_ecdh_read_params( mbedtls_ecdh_context *ctx,
const unsigned char **buf,
const unsigned char *end )
{
int ret;
mbedtls_ecp_group_id grp_id;
ECDH_VALIDATE_RET( ctx != NULL );
ECDH_VALIDATE_RET( buf != NULL );
ECDH_VALIDATE_RET( *buf != NULL );
ECDH_VALIDATE_RET( end != NULL );
if( ( ret = mbedtls_ecp_tls_read_group_id( &grp_id, buf, end - *buf ) )
!= 0 )
return( ret );
if( ( ret = mbedtls_ecdh_setup( ctx, grp_id ) ) != 0 )
return( ret );
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
return( ecdh_read_params_internal( ctx, buf, end ) );
#else
switch( ctx->var )
{
case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
return( ecdh_read_params_internal( &ctx->ctx.mbed_ecdh,
buf, end ) );
default:
return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
}
#endif
}
static int ecdh_get_params_internal( mbedtls_ecdh_context_mbed *ctx,
const mbedtls_ecp_keypair *key,
mbedtls_ecdh_side side )
{
int ret;
/* If it's not our key, just import the public part as Qp */
if( side == MBEDTLS_ECDH_THEIRS )
return( mbedtls_ecp_copy( &ctx->Qp, &key->Q ) );
/* Our key: import public (as Q) and private parts */
if( side != MBEDTLS_ECDH_OURS )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
if( ( ret = mbedtls_ecp_copy( &ctx->Q, &key->Q ) ) != 0 ||
( ret = mbedtls_mpi_copy( &ctx->d, &key->d ) ) != 0 )
return( ret );
return( 0 );
}
/*
* Get parameters from a keypair
*/
int mbedtls_ecdh_get_params( mbedtls_ecdh_context *ctx,
const mbedtls_ecp_keypair *key,
mbedtls_ecdh_side side )
{
int ret;
ECDH_VALIDATE_RET( ctx != NULL );
ECDH_VALIDATE_RET( key != NULL );
ECDH_VALIDATE_RET( side == MBEDTLS_ECDH_OURS ||
side == MBEDTLS_ECDH_THEIRS );
if( ( ret = mbedtls_ecdh_setup( ctx, key->grp.id ) ) != 0 )
return( ret );
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
return( ecdh_get_params_internal( ctx, key, side ) );
#else
switch( ctx->var )
{
case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
return( ecdh_get_params_internal( &ctx->ctx.mbed_ecdh,
key, side ) );
default:
return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
}
#endif
}
static int ecdh_make_public_internal( mbedtls_ecdh_context_mbed *ctx,
size_t *olen, int point_format,
unsigned char *buf, size_t blen,
int (*f_rng)(void *,
unsigned char *,
size_t),
void *p_rng,
int restart_enabled )
{
int ret;
#if defined(MBEDTLS_ECP_RESTARTABLE)
mbedtls_ecp_restart_ctx *rs_ctx = NULL;
#endif
if( ctx->grp.pbits == 0 )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( restart_enabled )
rs_ctx = &ctx->rs;
#else
(void) restart_enabled;
#endif
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( ( ret = ecdh_gen_public_restartable( &ctx->grp, &ctx->d, &ctx->Q,
f_rng, p_rng, rs_ctx ) ) != 0 )
return( ret );
#else
if( ( ret = mbedtls_ecdh_gen_public( &ctx->grp, &ctx->d, &ctx->Q,
f_rng, p_rng ) ) != 0 )
return( ret );
#endif /* MBEDTLS_ECP_RESTARTABLE */
return mbedtls_ecp_tls_write_point( &ctx->grp, &ctx->Q, point_format, olen,
buf, blen );
}
/*
* Setup and export the client public value
*/
int mbedtls_ecdh_make_public( mbedtls_ecdh_context *ctx, size_t *olen,
unsigned char *buf, size_t blen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int restart_enabled = 0;
ECDH_VALIDATE_RET( ctx != NULL );
ECDH_VALIDATE_RET( olen != NULL );
ECDH_VALIDATE_RET( buf != NULL );
ECDH_VALIDATE_RET( f_rng != NULL );
#if defined(MBEDTLS_ECP_RESTARTABLE)
restart_enabled = ctx->restart_enabled;
#endif
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
return( ecdh_make_public_internal( ctx, olen, ctx->point_format, buf, blen,
f_rng, p_rng, restart_enabled ) );
#else
switch( ctx->var )
{
case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
return( ecdh_make_public_internal( &ctx->ctx.mbed_ecdh, olen,
ctx->point_format, buf, blen,
f_rng, p_rng,
restart_enabled ) );
default:
return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
}
#endif
}
static int ecdh_read_public_internal( mbedtls_ecdh_context_mbed *ctx,
const unsigned char *buf, size_t blen )
{
int ret;
const unsigned char *p = buf;
if( ( ret = mbedtls_ecp_tls_read_point( &ctx->grp, &ctx->Qp, &p,
blen ) ) != 0 )
return( ret );
if( (size_t)( p - buf ) != blen )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
return( 0 );
}
/*
* Parse and import the client's public value
*/
int mbedtls_ecdh_read_public( mbedtls_ecdh_context *ctx,
const unsigned char *buf, size_t blen )
{
ECDH_VALIDATE_RET( ctx != NULL );
ECDH_VALIDATE_RET( buf != NULL );
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
return( ecdh_read_public_internal( ctx, buf, blen ) );
#else
switch( ctx->var )
{
case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
return( ecdh_read_public_internal( &ctx->ctx.mbed_ecdh,
buf, blen ) );
default:
return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
}
#endif
}
static int ecdh_calc_secret_internal( mbedtls_ecdh_context_mbed *ctx,
size_t *olen, unsigned char *buf,
size_t blen,
int (*f_rng)(void *,
unsigned char *,
size_t),
void *p_rng,
int restart_enabled )
{
int ret;
#if defined(MBEDTLS_ECP_RESTARTABLE)
mbedtls_ecp_restart_ctx *rs_ctx = NULL;
#endif
if( ctx == NULL || ctx->grp.pbits == 0 )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( restart_enabled )
rs_ctx = &ctx->rs;
#else
(void) restart_enabled;
#endif
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( ( ret = ecdh_compute_shared_restartable( &ctx->grp, &ctx->z, &ctx->Qp,
&ctx->d, f_rng, p_rng,
rs_ctx ) ) != 0 )
{
return( ret );
}
#else
if( ( ret = mbedtls_ecdh_compute_shared( &ctx->grp, &ctx->z, &ctx->Qp,
&ctx->d, f_rng, p_rng ) ) != 0 )
{
return( ret );
}
#endif /* MBEDTLS_ECP_RESTARTABLE */
if( mbedtls_mpi_size( &ctx->z ) > blen )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
*olen = ctx->grp.pbits / 8 + ( ( ctx->grp.pbits % 8 ) != 0 );
return mbedtls_mpi_write_binary( &ctx->z, buf, *olen );
}
/*
* Derive and export the shared secret
*/
int mbedtls_ecdh_calc_secret( mbedtls_ecdh_context *ctx, size_t *olen,
unsigned char *buf, size_t blen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int restart_enabled = 0;
ECDH_VALIDATE_RET( ctx != NULL );
ECDH_VALIDATE_RET( olen != NULL );
ECDH_VALIDATE_RET( buf != NULL );
#if defined(MBEDTLS_ECP_RESTARTABLE)
restart_enabled = ctx->restart_enabled;
#endif
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
return( ecdh_calc_secret_internal( ctx, olen, buf, blen, f_rng, p_rng,
restart_enabled ) );
#else
switch( ctx->var )
{
case MBEDTLS_ECDH_VARIANT_MBEDTLS_2_0:
return( ecdh_calc_secret_internal( &ctx->ctx.mbed_ecdh, olen, buf,
blen, f_rng, p_rng,
restart_enabled ) );
default:
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
}
#endif
}
#endif /* MBEDTLS_ECDH_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/ecdh.c | C | apache-2.0 | 20,070 |
/*
* Elliptic curve DSA
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* References:
*
* SEC1 http://www.secg.org/index.php?action=secg,docs_secg
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_ECDSA_C)
#include "mbedtls/ecdsa.h"
#include "mbedtls/asn1write.h"
#include <string.h>
#if defined(MBEDTLS_ECDSA_DETERMINISTIC)
#include "mbedtls/hmac_drbg.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#include "mbedtls/platform_util.h"
/* Parameter validation macros based on platform_util.h */
#define ECDSA_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_ECP_BAD_INPUT_DATA )
#define ECDSA_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
#if defined(MBEDTLS_ECP_RESTARTABLE)
/*
* Sub-context for ecdsa_verify()
*/
struct mbedtls_ecdsa_restart_ver
{
mbedtls_mpi u1, u2; /* intermediate values */
enum { /* what to do next? */
ecdsa_ver_init = 0, /* getting started */
ecdsa_ver_muladd, /* muladd step */
} state;
};
/*
* Init verify restart sub-context
*/
static void ecdsa_restart_ver_init( mbedtls_ecdsa_restart_ver_ctx *ctx )
{
mbedtls_mpi_init( &ctx->u1 );
mbedtls_mpi_init( &ctx->u2 );
ctx->state = ecdsa_ver_init;
}
/*
* Free the components of a verify restart sub-context
*/
static void ecdsa_restart_ver_free( mbedtls_ecdsa_restart_ver_ctx *ctx )
{
if( ctx == NULL )
return;
mbedtls_mpi_free( &ctx->u1 );
mbedtls_mpi_free( &ctx->u2 );
ecdsa_restart_ver_init( ctx );
}
/*
* Sub-context for ecdsa_sign()
*/
struct mbedtls_ecdsa_restart_sig
{
int sign_tries;
int key_tries;
mbedtls_mpi k; /* per-signature random */
mbedtls_mpi r; /* r value */
enum { /* what to do next? */
ecdsa_sig_init = 0, /* getting started */
ecdsa_sig_mul, /* doing ecp_mul() */
ecdsa_sig_modn, /* mod N computations */
} state;
};
/*
* Init verify sign sub-context
*/
static void ecdsa_restart_sig_init( mbedtls_ecdsa_restart_sig_ctx *ctx )
{
ctx->sign_tries = 0;
ctx->key_tries = 0;
mbedtls_mpi_init( &ctx->k );
mbedtls_mpi_init( &ctx->r );
ctx->state = ecdsa_sig_init;
}
/*
* Free the components of a sign restart sub-context
*/
static void ecdsa_restart_sig_free( mbedtls_ecdsa_restart_sig_ctx *ctx )
{
if( ctx == NULL )
return;
mbedtls_mpi_free( &ctx->k );
mbedtls_mpi_free( &ctx->r );
}
#if defined(MBEDTLS_ECDSA_DETERMINISTIC)
/*
* Sub-context for ecdsa_sign_det()
*/
struct mbedtls_ecdsa_restart_det
{
mbedtls_hmac_drbg_context rng_ctx; /* DRBG state */
enum { /* what to do next? */
ecdsa_det_init = 0, /* getting started */
ecdsa_det_sign, /* make signature */
} state;
};
/*
* Init verify sign_det sub-context
*/
static void ecdsa_restart_det_init( mbedtls_ecdsa_restart_det_ctx *ctx )
{
mbedtls_hmac_drbg_init( &ctx->rng_ctx );
ctx->state = ecdsa_det_init;
}
/*
* Free the components of a sign_det restart sub-context
*/
static void ecdsa_restart_det_free( mbedtls_ecdsa_restart_det_ctx *ctx )
{
if( ctx == NULL )
return;
mbedtls_hmac_drbg_free( &ctx->rng_ctx );
ecdsa_restart_det_init( ctx );
}
#endif /* MBEDTLS_ECDSA_DETERMINISTIC */
#define ECDSA_RS_ECP &rs_ctx->ecp
/* Utility macro for checking and updating ops budget */
#define ECDSA_BUDGET( ops ) \
MBEDTLS_MPI_CHK( mbedtls_ecp_check_budget( grp, &rs_ctx->ecp, ops ) );
/* Call this when entering a function that needs its own sub-context */
#define ECDSA_RS_ENTER( SUB ) do { \
/* reset ops count for this call if top-level */ \
if( rs_ctx != NULL && rs_ctx->ecp.depth++ == 0 ) \
rs_ctx->ecp.ops_done = 0; \
\
/* set up our own sub-context if needed */ \
if( mbedtls_ecp_restart_is_enabled() && \
rs_ctx != NULL && rs_ctx->SUB == NULL ) \
{ \
rs_ctx->SUB = mbedtls_calloc( 1, sizeof( *rs_ctx->SUB ) ); \
if( rs_ctx->SUB == NULL ) \
return( MBEDTLS_ERR_ECP_ALLOC_FAILED ); \
\
ecdsa_restart_## SUB ##_init( rs_ctx->SUB ); \
} \
} while( 0 )
/* Call this when leaving a function that needs its own sub-context */
#define ECDSA_RS_LEAVE( SUB ) do { \
/* clear our sub-context when not in progress (done or error) */ \
if( rs_ctx != NULL && rs_ctx->SUB != NULL && \
ret != MBEDTLS_ERR_ECP_IN_PROGRESS ) \
{ \
ecdsa_restart_## SUB ##_free( rs_ctx->SUB ); \
mbedtls_free( rs_ctx->SUB ); \
rs_ctx->SUB = NULL; \
} \
\
if( rs_ctx != NULL ) \
rs_ctx->ecp.depth--; \
} while( 0 )
#else /* MBEDTLS_ECP_RESTARTABLE */
#define ECDSA_RS_ECP NULL
#define ECDSA_BUDGET( ops ) /* no-op; for compatibility */
#define ECDSA_RS_ENTER( SUB ) (void) rs_ctx
#define ECDSA_RS_LEAVE( SUB ) (void) rs_ctx
#endif /* MBEDTLS_ECP_RESTARTABLE */
/*
* Derive a suitable integer for group grp from a buffer of length len
* SEC1 4.1.3 step 5 aka SEC1 4.1.4 step 3
*/
static int derive_mpi( const mbedtls_ecp_group *grp, mbedtls_mpi *x,
const unsigned char *buf, size_t blen )
{
int ret;
size_t n_size = ( grp->nbits + 7 ) / 8;
size_t use_size = blen > n_size ? n_size : blen;
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( x, buf, use_size ) );
if( use_size * 8 > grp->nbits )
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( x, use_size * 8 - grp->nbits ) );
/* While at it, reduce modulo N */
if( mbedtls_mpi_cmp_mpi( x, &grp->N ) >= 0 )
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( x, x, &grp->N ) );
cleanup:
return( ret );
}
#if !defined(MBEDTLS_ECDSA_SIGN_ALT)
/*
* Compute ECDSA signature of a hashed message (SEC1 4.1.3)
* Obviously, compared to SEC1 4.1.3, we skip step 4 (hash message)
*/
static int ecdsa_sign_restartable( mbedtls_ecp_group *grp,
mbedtls_mpi *r, mbedtls_mpi *s,
const mbedtls_mpi *d, const unsigned char *buf, size_t blen,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
mbedtls_ecdsa_restart_ctx *rs_ctx )
{
int ret, key_tries, sign_tries;
int *p_sign_tries = &sign_tries, *p_key_tries = &key_tries;
mbedtls_ecp_point R;
mbedtls_mpi k, e, t;
mbedtls_mpi *pk = &k, *pr = r;
/* Fail cleanly on curves such as Curve25519 that can't be used for ECDSA */
if( grp->N.p == NULL )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
/* Make sure d is in range 1..n-1 */
if( mbedtls_mpi_cmp_int( d, 1 ) < 0 || mbedtls_mpi_cmp_mpi( d, &grp->N ) >= 0 )
return( MBEDTLS_ERR_ECP_INVALID_KEY );
mbedtls_ecp_point_init( &R );
mbedtls_mpi_init( &k ); mbedtls_mpi_init( &e ); mbedtls_mpi_init( &t );
ECDSA_RS_ENTER( sig );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->sig != NULL )
{
/* redirect to our context */
p_sign_tries = &rs_ctx->sig->sign_tries;
p_key_tries = &rs_ctx->sig->key_tries;
pk = &rs_ctx->sig->k;
pr = &rs_ctx->sig->r;
/* jump to current step */
if( rs_ctx->sig->state == ecdsa_sig_mul )
goto mul;
if( rs_ctx->sig->state == ecdsa_sig_modn )
goto modn;
}
#endif /* MBEDTLS_ECP_RESTARTABLE */
*p_sign_tries = 0;
do
{
if( *p_sign_tries++ > 10 )
{
ret = MBEDTLS_ERR_ECP_RANDOM_FAILED;
goto cleanup;
}
/*
* Steps 1-3: generate a suitable ephemeral keypair
* and set r = xR mod n
*/
*p_key_tries = 0;
do
{
if( *p_key_tries++ > 10 )
{
ret = MBEDTLS_ERR_ECP_RANDOM_FAILED;
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_ecp_gen_privkey( grp, pk, f_rng, p_rng ) );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->sig != NULL )
rs_ctx->sig->state = ecdsa_sig_mul;
mul:
#endif
MBEDTLS_MPI_CHK( mbedtls_ecp_mul_restartable( grp, &R, pk, &grp->G,
f_rng, p_rng, ECDSA_RS_ECP ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( pr, &R.X, &grp->N ) );
}
while( mbedtls_mpi_cmp_int( pr, 0 ) == 0 );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->sig != NULL )
rs_ctx->sig->state = ecdsa_sig_modn;
modn:
#endif
/*
* Accounting for everything up to the end of the loop
* (step 6, but checking now avoids saving e and t)
*/
ECDSA_BUDGET( MBEDTLS_ECP_OPS_INV + 4 );
/*
* Step 5: derive MPI from hashed message
*/
MBEDTLS_MPI_CHK( derive_mpi( grp, &e, buf, blen ) );
/*
* Generate a random value to blind inv_mod in next step,
* avoiding a potential timing leak.
*/
MBEDTLS_MPI_CHK( mbedtls_ecp_gen_privkey( grp, &t, f_rng, p_rng ) );
/*
* Step 6: compute s = (e + r * d) / k = t (e + rd) / (kt) mod n
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( s, pr, d ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &e, &e, s ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &e, &e, &t ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( pk, pk, &t ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( s, pk, &grp->N ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( s, s, &e ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( s, s, &grp->N ) );
}
while( mbedtls_mpi_cmp_int( s, 0 ) == 0 );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->sig != NULL )
mbedtls_mpi_copy( r, pr );
#endif
cleanup:
mbedtls_ecp_point_free( &R );
mbedtls_mpi_free( &k ); mbedtls_mpi_free( &e ); mbedtls_mpi_free( &t );
ECDSA_RS_LEAVE( sig );
return( ret );
}
/*
* Compute ECDSA signature of a hashed message
*/
int mbedtls_ecdsa_sign( mbedtls_ecp_group *grp, mbedtls_mpi *r, mbedtls_mpi *s,
const mbedtls_mpi *d, const unsigned char *buf, size_t blen,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
ECDSA_VALIDATE_RET( grp != NULL );
ECDSA_VALIDATE_RET( r != NULL );
ECDSA_VALIDATE_RET( s != NULL );
ECDSA_VALIDATE_RET( d != NULL );
ECDSA_VALIDATE_RET( f_rng != NULL );
ECDSA_VALIDATE_RET( buf != NULL || blen == 0 );
return( ecdsa_sign_restartable( grp, r, s, d, buf, blen,
f_rng, p_rng, NULL ) );
}
#endif /* !MBEDTLS_ECDSA_SIGN_ALT */
#if defined(MBEDTLS_ECDSA_DETERMINISTIC)
/*
* Deterministic signature wrapper
*/
static int ecdsa_sign_det_restartable( mbedtls_ecp_group *grp,
mbedtls_mpi *r, mbedtls_mpi *s,
const mbedtls_mpi *d, const unsigned char *buf, size_t blen,
mbedtls_md_type_t md_alg,
mbedtls_ecdsa_restart_ctx *rs_ctx )
{
int ret;
mbedtls_hmac_drbg_context rng_ctx;
mbedtls_hmac_drbg_context *p_rng = &rng_ctx;
unsigned char data[2 * MBEDTLS_ECP_MAX_BYTES];
size_t grp_len = ( grp->nbits + 7 ) / 8;
const mbedtls_md_info_t *md_info;
mbedtls_mpi h;
if( ( md_info = mbedtls_md_info_from_type( md_alg ) ) == NULL )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
mbedtls_mpi_init( &h );
mbedtls_hmac_drbg_init( &rng_ctx );
ECDSA_RS_ENTER( det );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->det != NULL )
{
/* redirect to our context */
p_rng = &rs_ctx->det->rng_ctx;
/* jump to current step */
if( rs_ctx->det->state == ecdsa_det_sign )
goto sign;
}
#endif /* MBEDTLS_ECP_RESTARTABLE */
/* Use private key and message hash (reduced) to initialize HMAC_DRBG */
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( d, data, grp_len ) );
MBEDTLS_MPI_CHK( derive_mpi( grp, &h, buf, blen ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &h, data + grp_len, grp_len ) );
mbedtls_hmac_drbg_seed_buf( p_rng, md_info, data, 2 * grp_len );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->det != NULL )
rs_ctx->det->state = ecdsa_det_sign;
sign:
#endif
#if defined(MBEDTLS_ECDSA_SIGN_ALT)
ret = mbedtls_ecdsa_sign( grp, r, s, d, buf, blen,
mbedtls_hmac_drbg_random, p_rng );
#else
ret = ecdsa_sign_restartable( grp, r, s, d, buf, blen,
mbedtls_hmac_drbg_random, p_rng, rs_ctx );
#endif /* MBEDTLS_ECDSA_SIGN_ALT */
cleanup:
mbedtls_hmac_drbg_free( &rng_ctx );
mbedtls_mpi_free( &h );
ECDSA_RS_LEAVE( det );
return( ret );
}
/*
* Deterministic signature wrapper
*/
int mbedtls_ecdsa_sign_det( mbedtls_ecp_group *grp, mbedtls_mpi *r, mbedtls_mpi *s,
const mbedtls_mpi *d, const unsigned char *buf, size_t blen,
mbedtls_md_type_t md_alg )
{
ECDSA_VALIDATE_RET( grp != NULL );
ECDSA_VALIDATE_RET( r != NULL );
ECDSA_VALIDATE_RET( s != NULL );
ECDSA_VALIDATE_RET( d != NULL );
ECDSA_VALIDATE_RET( buf != NULL || blen == 0 );
return( ecdsa_sign_det_restartable( grp, r, s, d, buf, blen, md_alg, NULL ) );
}
#endif /* MBEDTLS_ECDSA_DETERMINISTIC */
#if !defined(MBEDTLS_ECDSA_VERIFY_ALT)
/*
* Verify ECDSA signature of hashed message (SEC1 4.1.4)
* Obviously, compared to SEC1 4.1.3, we skip step 2 (hash message)
*/
static int ecdsa_verify_restartable( mbedtls_ecp_group *grp,
const unsigned char *buf, size_t blen,
const mbedtls_ecp_point *Q,
const mbedtls_mpi *r, const mbedtls_mpi *s,
mbedtls_ecdsa_restart_ctx *rs_ctx )
{
int ret;
mbedtls_mpi e, s_inv, u1, u2;
mbedtls_ecp_point R;
mbedtls_mpi *pu1 = &u1, *pu2 = &u2;
mbedtls_ecp_point_init( &R );
mbedtls_mpi_init( &e ); mbedtls_mpi_init( &s_inv );
mbedtls_mpi_init( &u1 ); mbedtls_mpi_init( &u2 );
/* Fail cleanly on curves such as Curve25519 that can't be used for ECDSA */
if( grp->N.p == NULL )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
ECDSA_RS_ENTER( ver );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->ver != NULL )
{
/* redirect to our context */
pu1 = &rs_ctx->ver->u1;
pu2 = &rs_ctx->ver->u2;
/* jump to current step */
if( rs_ctx->ver->state == ecdsa_ver_muladd )
goto muladd;
}
#endif /* MBEDTLS_ECP_RESTARTABLE */
/*
* Step 1: make sure r and s are in range 1..n-1
*/
if( mbedtls_mpi_cmp_int( r, 1 ) < 0 || mbedtls_mpi_cmp_mpi( r, &grp->N ) >= 0 ||
mbedtls_mpi_cmp_int( s, 1 ) < 0 || mbedtls_mpi_cmp_mpi( s, &grp->N ) >= 0 )
{
ret = MBEDTLS_ERR_ECP_VERIFY_FAILED;
goto cleanup;
}
/*
* Step 3: derive MPI from hashed message
*/
MBEDTLS_MPI_CHK( derive_mpi( grp, &e, buf, blen ) );
/*
* Step 4: u1 = e / s mod n, u2 = r / s mod n
*/
ECDSA_BUDGET( MBEDTLS_ECP_OPS_CHK + MBEDTLS_ECP_OPS_INV + 2 );
MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &s_inv, s, &grp->N ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( pu1, &e, &s_inv ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( pu1, pu1, &grp->N ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( pu2, r, &s_inv ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( pu2, pu2, &grp->N ) );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->ver != NULL )
rs_ctx->ver->state = ecdsa_ver_muladd;
muladd:
#endif
/*
* Step 5: R = u1 G + u2 Q
*/
MBEDTLS_MPI_CHK( mbedtls_ecp_muladd_restartable( grp,
&R, pu1, &grp->G, pu2, Q, ECDSA_RS_ECP ) );
if( mbedtls_ecp_is_zero( &R ) )
{
ret = MBEDTLS_ERR_ECP_VERIFY_FAILED;
goto cleanup;
}
/*
* Step 6: convert xR to an integer (no-op)
* Step 7: reduce xR mod n (gives v)
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &R.X, &R.X, &grp->N ) );
/*
* Step 8: check if v (that is, R.X) is equal to r
*/
if( mbedtls_mpi_cmp_mpi( &R.X, r ) != 0 )
{
ret = MBEDTLS_ERR_ECP_VERIFY_FAILED;
goto cleanup;
}
cleanup:
mbedtls_ecp_point_free( &R );
mbedtls_mpi_free( &e ); mbedtls_mpi_free( &s_inv );
mbedtls_mpi_free( &u1 ); mbedtls_mpi_free( &u2 );
ECDSA_RS_LEAVE( ver );
return( ret );
}
/*
* Verify ECDSA signature of hashed message
*/
int mbedtls_ecdsa_verify( mbedtls_ecp_group *grp,
const unsigned char *buf, size_t blen,
const mbedtls_ecp_point *Q,
const mbedtls_mpi *r,
const mbedtls_mpi *s)
{
ECDSA_VALIDATE_RET( grp != NULL );
ECDSA_VALIDATE_RET( Q != NULL );
ECDSA_VALIDATE_RET( r != NULL );
ECDSA_VALIDATE_RET( s != NULL );
ECDSA_VALIDATE_RET( buf != NULL || blen == 0 );
return( ecdsa_verify_restartable( grp, buf, blen, Q, r, s, NULL ) );
}
#endif /* !MBEDTLS_ECDSA_VERIFY_ALT */
/*
* Convert a signature (given by context) to ASN.1
*/
static int ecdsa_signature_to_asn1( const mbedtls_mpi *r, const mbedtls_mpi *s,
unsigned char *sig, size_t *slen )
{
int ret;
unsigned char buf[MBEDTLS_ECDSA_MAX_LEN];
unsigned char *p = buf + sizeof( buf );
size_t len = 0;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &p, buf, s ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &p, buf, r ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &p, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &p, buf,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) );
memcpy( sig, p, len );
*slen = len;
return( 0 );
}
/*
* Compute and write signature
*/
int mbedtls_ecdsa_write_signature_restartable( mbedtls_ecdsa_context *ctx,
mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hlen,
unsigned char *sig, size_t *slen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
mbedtls_ecdsa_restart_ctx *rs_ctx )
{
int ret;
mbedtls_mpi r, s;
ECDSA_VALIDATE_RET( ctx != NULL );
ECDSA_VALIDATE_RET( hash != NULL );
ECDSA_VALIDATE_RET( sig != NULL );
ECDSA_VALIDATE_RET( slen != NULL );
mbedtls_mpi_init( &r );
mbedtls_mpi_init( &s );
#if defined(MBEDTLS_ECDSA_DETERMINISTIC)
(void) f_rng;
(void) p_rng;
MBEDTLS_MPI_CHK( ecdsa_sign_det_restartable( &ctx->grp, &r, &s, &ctx->d,
hash, hlen, md_alg, rs_ctx ) );
#else
(void) md_alg;
#if defined(MBEDTLS_ECDSA_SIGN_ALT)
MBEDTLS_MPI_CHK( mbedtls_ecdsa_sign( &ctx->grp, &r, &s, &ctx->d,
hash, hlen, f_rng, p_rng ) );
#else
MBEDTLS_MPI_CHK( ecdsa_sign_restartable( &ctx->grp, &r, &s, &ctx->d,
hash, hlen, f_rng, p_rng, rs_ctx ) );
#endif /* MBEDTLS_ECDSA_SIGN_ALT */
#endif /* MBEDTLS_ECDSA_DETERMINISTIC */
MBEDTLS_MPI_CHK( ecdsa_signature_to_asn1( &r, &s, sig, slen ) );
cleanup:
mbedtls_mpi_free( &r );
mbedtls_mpi_free( &s );
return( ret );
}
/*
* Compute and write signature
*/
int mbedtls_ecdsa_write_signature( mbedtls_ecdsa_context *ctx,
mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hlen,
unsigned char *sig, size_t *slen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
ECDSA_VALIDATE_RET( ctx != NULL );
ECDSA_VALIDATE_RET( hash != NULL );
ECDSA_VALIDATE_RET( sig != NULL );
ECDSA_VALIDATE_RET( slen != NULL );
return( mbedtls_ecdsa_write_signature_restartable(
ctx, md_alg, hash, hlen, sig, slen, f_rng, p_rng, NULL ) );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED) && \
defined(MBEDTLS_ECDSA_DETERMINISTIC)
int mbedtls_ecdsa_write_signature_det( mbedtls_ecdsa_context *ctx,
const unsigned char *hash, size_t hlen,
unsigned char *sig, size_t *slen,
mbedtls_md_type_t md_alg )
{
ECDSA_VALIDATE_RET( ctx != NULL );
ECDSA_VALIDATE_RET( hash != NULL );
ECDSA_VALIDATE_RET( sig != NULL );
ECDSA_VALIDATE_RET( slen != NULL );
return( mbedtls_ecdsa_write_signature( ctx, md_alg, hash, hlen, sig, slen,
NULL, NULL ) );
}
#endif
/*
* Read and check signature
*/
int mbedtls_ecdsa_read_signature( mbedtls_ecdsa_context *ctx,
const unsigned char *hash, size_t hlen,
const unsigned char *sig, size_t slen )
{
ECDSA_VALIDATE_RET( ctx != NULL );
ECDSA_VALIDATE_RET( hash != NULL );
ECDSA_VALIDATE_RET( sig != NULL );
return( mbedtls_ecdsa_read_signature_restartable(
ctx, hash, hlen, sig, slen, NULL ) );
}
/*
* Restartable read and check signature
*/
int mbedtls_ecdsa_read_signature_restartable( mbedtls_ecdsa_context *ctx,
const unsigned char *hash, size_t hlen,
const unsigned char *sig, size_t slen,
mbedtls_ecdsa_restart_ctx *rs_ctx )
{
int ret;
unsigned char *p = (unsigned char *) sig;
const unsigned char *end = sig + slen;
size_t len;
mbedtls_mpi r, s;
ECDSA_VALIDATE_RET( ctx != NULL );
ECDSA_VALIDATE_RET( hash != NULL );
ECDSA_VALIDATE_RET( sig != NULL );
mbedtls_mpi_init( &r );
mbedtls_mpi_init( &s );
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
ret += MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
goto cleanup;
}
if( p + len != end )
{
ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH;
goto cleanup;
}
if( ( ret = mbedtls_asn1_get_mpi( &p, end, &r ) ) != 0 ||
( ret = mbedtls_asn1_get_mpi( &p, end, &s ) ) != 0 )
{
ret += MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
goto cleanup;
}
#if defined(MBEDTLS_ECDSA_VERIFY_ALT)
if( ( ret = mbedtls_ecdsa_verify( &ctx->grp, hash, hlen,
&ctx->Q, &r, &s ) ) != 0 )
goto cleanup;
#else
if( ( ret = ecdsa_verify_restartable( &ctx->grp, hash, hlen,
&ctx->Q, &r, &s, rs_ctx ) ) != 0 )
goto cleanup;
#endif /* MBEDTLS_ECDSA_VERIFY_ALT */
/* At this point we know that the buffer starts with a valid signature.
* Return 0 if the buffer just contains the signature, and a specific
* error code if the valid signature is followed by more data. */
if( p != end )
ret = MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH;
cleanup:
mbedtls_mpi_free( &r );
mbedtls_mpi_free( &s );
return( ret );
}
#if !defined(MBEDTLS_ECDSA_GENKEY_ALT)
/*
* Generate key pair
*/
int mbedtls_ecdsa_genkey( mbedtls_ecdsa_context *ctx, mbedtls_ecp_group_id gid,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
ECDSA_VALIDATE_RET( ctx != NULL );
ECDSA_VALIDATE_RET( f_rng != NULL );
return( mbedtls_ecp_group_load( &ctx->grp, gid ) ||
mbedtls_ecp_gen_keypair( &ctx->grp, &ctx->d, &ctx->Q, f_rng, p_rng ) );
}
#endif /* !MBEDTLS_ECDSA_GENKEY_ALT */
/*
* Set context from an mbedtls_ecp_keypair
*/
int mbedtls_ecdsa_from_keypair( mbedtls_ecdsa_context *ctx, const mbedtls_ecp_keypair *key )
{
int ret;
ECDSA_VALIDATE_RET( ctx != NULL );
ECDSA_VALIDATE_RET( key != NULL );
if( ( ret = mbedtls_ecp_group_copy( &ctx->grp, &key->grp ) ) != 0 ||
( ret = mbedtls_mpi_copy( &ctx->d, &key->d ) ) != 0 ||
( ret = mbedtls_ecp_copy( &ctx->Q, &key->Q ) ) != 0 )
{
mbedtls_ecdsa_free( ctx );
}
return( ret );
}
/*
* Initialize context
*/
void mbedtls_ecdsa_init( mbedtls_ecdsa_context *ctx )
{
ECDSA_VALIDATE( ctx != NULL );
mbedtls_ecp_keypair_init( ctx );
}
/*
* Free context
*/
void mbedtls_ecdsa_free( mbedtls_ecdsa_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_ecp_keypair_free( ctx );
}
#if defined(MBEDTLS_ECP_RESTARTABLE)
/*
* Initialize a restart context
*/
void mbedtls_ecdsa_restart_init( mbedtls_ecdsa_restart_ctx *ctx )
{
ECDSA_VALIDATE( ctx != NULL );
mbedtls_ecp_restart_init( &ctx->ecp );
ctx->ver = NULL;
ctx->sig = NULL;
#if defined(MBEDTLS_ECDSA_DETERMINISTIC)
ctx->det = NULL;
#endif
}
/*
* Free the components of a restart context
*/
void mbedtls_ecdsa_restart_free( mbedtls_ecdsa_restart_ctx *ctx )
{
if( ctx == NULL )
return;
mbedtls_ecp_restart_free( &ctx->ecp );
ecdsa_restart_ver_free( ctx->ver );
mbedtls_free( ctx->ver );
ctx->ver = NULL;
ecdsa_restart_sig_free( ctx->sig );
mbedtls_free( ctx->sig );
ctx->sig = NULL;
#if defined(MBEDTLS_ECDSA_DETERMINISTIC)
ecdsa_restart_det_free( ctx->det );
mbedtls_free( ctx->det );
ctx->det = NULL;
#endif
}
#endif /* MBEDTLS_ECP_RESTARTABLE */
#endif /* MBEDTLS_ECDSA_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/ecdsa.c | C | apache-2.0 | 27,457 |
/*
* Elliptic curve J-PAKE
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* References in the code are to the Thread v1.0 Specification,
* available to members of the Thread Group http://threadgroup.org/
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_ECJPAKE_C)
#include "mbedtls/ecjpake.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if !defined(MBEDTLS_ECJPAKE_ALT)
/* Parameter validation macros based on platform_util.h */
#define ECJPAKE_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_ECP_BAD_INPUT_DATA )
#define ECJPAKE_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
/*
* Convert a mbedtls_ecjpake_role to identifier string
*/
static const char * const ecjpake_id[] = {
"client",
"server"
};
#define ID_MINE ( ecjpake_id[ ctx->role ] )
#define ID_PEER ( ecjpake_id[ 1 - ctx->role ] )
/*
* Initialize context
*/
void mbedtls_ecjpake_init( mbedtls_ecjpake_context *ctx )
{
ECJPAKE_VALIDATE( ctx != NULL );
ctx->md_info = NULL;
mbedtls_ecp_group_init( &ctx->grp );
ctx->point_format = MBEDTLS_ECP_PF_UNCOMPRESSED;
mbedtls_ecp_point_init( &ctx->Xm1 );
mbedtls_ecp_point_init( &ctx->Xm2 );
mbedtls_ecp_point_init( &ctx->Xp1 );
mbedtls_ecp_point_init( &ctx->Xp2 );
mbedtls_ecp_point_init( &ctx->Xp );
mbedtls_mpi_init( &ctx->xm1 );
mbedtls_mpi_init( &ctx->xm2 );
mbedtls_mpi_init( &ctx->s );
}
/*
* Free context
*/
void mbedtls_ecjpake_free( mbedtls_ecjpake_context *ctx )
{
if( ctx == NULL )
return;
ctx->md_info = NULL;
mbedtls_ecp_group_free( &ctx->grp );
mbedtls_ecp_point_free( &ctx->Xm1 );
mbedtls_ecp_point_free( &ctx->Xm2 );
mbedtls_ecp_point_free( &ctx->Xp1 );
mbedtls_ecp_point_free( &ctx->Xp2 );
mbedtls_ecp_point_free( &ctx->Xp );
mbedtls_mpi_free( &ctx->xm1 );
mbedtls_mpi_free( &ctx->xm2 );
mbedtls_mpi_free( &ctx->s );
}
/*
* Setup context
*/
int mbedtls_ecjpake_setup( mbedtls_ecjpake_context *ctx,
mbedtls_ecjpake_role role,
mbedtls_md_type_t hash,
mbedtls_ecp_group_id curve,
const unsigned char *secret,
size_t len )
{
int ret;
ECJPAKE_VALIDATE_RET( ctx != NULL );
ECJPAKE_VALIDATE_RET( role == MBEDTLS_ECJPAKE_CLIENT ||
role == MBEDTLS_ECJPAKE_SERVER );
ECJPAKE_VALIDATE_RET( secret != NULL || len == 0 );
ctx->role = role;
if( ( ctx->md_info = mbedtls_md_info_from_type( hash ) ) == NULL )
return( MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE );
MBEDTLS_MPI_CHK( mbedtls_ecp_group_load( &ctx->grp, curve ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->s, secret, len ) );
cleanup:
if( ret != 0 )
mbedtls_ecjpake_free( ctx );
return( ret );
}
/*
* Check if context is ready for use
*/
int mbedtls_ecjpake_check( const mbedtls_ecjpake_context *ctx )
{
ECJPAKE_VALIDATE_RET( ctx != NULL );
if( ctx->md_info == NULL ||
ctx->grp.id == MBEDTLS_ECP_DP_NONE ||
ctx->s.p == NULL )
{
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
}
return( 0 );
}
/*
* Write a point plus its length to a buffer
*/
static int ecjpake_write_len_point( unsigned char **p,
const unsigned char *end,
const mbedtls_ecp_group *grp,
const int pf,
const mbedtls_ecp_point *P )
{
int ret;
size_t len;
/* Need at least 4 for length plus 1 for point */
if( end < *p || end - *p < 5 )
return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
ret = mbedtls_ecp_point_write_binary( grp, P, pf,
&len, *p + 4, end - ( *p + 4 ) );
if( ret != 0 )
return( ret );
(*p)[0] = (unsigned char)( ( len >> 24 ) & 0xFF );
(*p)[1] = (unsigned char)( ( len >> 16 ) & 0xFF );
(*p)[2] = (unsigned char)( ( len >> 8 ) & 0xFF );
(*p)[3] = (unsigned char)( ( len ) & 0xFF );
*p += 4 + len;
return( 0 );
}
/*
* Size of the temporary buffer for ecjpake_hash:
* 3 EC points plus their length, plus ID and its length (4 + 6 bytes)
*/
#define ECJPAKE_HASH_BUF_LEN ( 3 * ( 4 + MBEDTLS_ECP_MAX_PT_LEN ) + 4 + 6 )
/*
* Compute hash for ZKP (7.4.2.2.2.1)
*/
static int ecjpake_hash( const mbedtls_md_info_t *md_info,
const mbedtls_ecp_group *grp,
const int pf,
const mbedtls_ecp_point *G,
const mbedtls_ecp_point *V,
const mbedtls_ecp_point *X,
const char *id,
mbedtls_mpi *h )
{
int ret;
unsigned char buf[ECJPAKE_HASH_BUF_LEN];
unsigned char *p = buf;
const unsigned char *end = buf + sizeof( buf );
const size_t id_len = strlen( id );
unsigned char hash[MBEDTLS_MD_MAX_SIZE];
/* Write things to temporary buffer */
MBEDTLS_MPI_CHK( ecjpake_write_len_point( &p, end, grp, pf, G ) );
MBEDTLS_MPI_CHK( ecjpake_write_len_point( &p, end, grp, pf, V ) );
MBEDTLS_MPI_CHK( ecjpake_write_len_point( &p, end, grp, pf, X ) );
if( end - p < 4 )
return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
*p++ = (unsigned char)( ( id_len >> 24 ) & 0xFF );
*p++ = (unsigned char)( ( id_len >> 16 ) & 0xFF );
*p++ = (unsigned char)( ( id_len >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( id_len ) & 0xFF );
if( end < p || (size_t)( end - p ) < id_len )
return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
memcpy( p, id, id_len );
p += id_len;
/* Compute hash */
mbedtls_md( md_info, buf, p - buf, hash );
/* Turn it into an integer mod n */
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( h, hash,
mbedtls_md_get_size( md_info ) ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( h, h, &grp->N ) );
cleanup:
return( ret );
}
/*
* Parse a ECShnorrZKP (7.4.2.2.2) and verify it (7.4.2.3.3)
*/
static int ecjpake_zkp_read( const mbedtls_md_info_t *md_info,
const mbedtls_ecp_group *grp,
const int pf,
const mbedtls_ecp_point *G,
const mbedtls_ecp_point *X,
const char *id,
const unsigned char **p,
const unsigned char *end )
{
int ret;
mbedtls_ecp_point V, VV;
mbedtls_mpi r, h;
size_t r_len;
mbedtls_ecp_point_init( &V );
mbedtls_ecp_point_init( &VV );
mbedtls_mpi_init( &r );
mbedtls_mpi_init( &h );
/*
* struct {
* ECPoint V;
* opaque r<1..2^8-1>;
* } ECSchnorrZKP;
*/
if( end < *p )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
MBEDTLS_MPI_CHK( mbedtls_ecp_tls_read_point( grp, &V, p, end - *p ) );
if( end < *p || (size_t)( end - *p ) < 1 )
{
ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
goto cleanup;
}
r_len = *(*p)++;
if( end < *p || (size_t)( end - *p ) < r_len )
{
ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &r, *p, r_len ) );
*p += r_len;
/*
* Verification
*/
MBEDTLS_MPI_CHK( ecjpake_hash( md_info, grp, pf, G, &V, X, id, &h ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_muladd( (mbedtls_ecp_group *) grp,
&VV, &h, X, &r, G ) );
if( mbedtls_ecp_point_cmp( &VV, &V ) != 0 )
{
ret = MBEDTLS_ERR_ECP_VERIFY_FAILED;
goto cleanup;
}
cleanup:
mbedtls_ecp_point_free( &V );
mbedtls_ecp_point_free( &VV );
mbedtls_mpi_free( &r );
mbedtls_mpi_free( &h );
return( ret );
}
/*
* Generate ZKP (7.4.2.3.2) and write it as ECSchnorrZKP (7.4.2.2.2)
*/
static int ecjpake_zkp_write( const mbedtls_md_info_t *md_info,
const mbedtls_ecp_group *grp,
const int pf,
const mbedtls_ecp_point *G,
const mbedtls_mpi *x,
const mbedtls_ecp_point *X,
const char *id,
unsigned char **p,
const unsigned char *end,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
mbedtls_ecp_point V;
mbedtls_mpi v;
mbedtls_mpi h; /* later recycled to hold r */
size_t len;
if( end < *p )
return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
mbedtls_ecp_point_init( &V );
mbedtls_mpi_init( &v );
mbedtls_mpi_init( &h );
/* Compute signature */
MBEDTLS_MPI_CHK( mbedtls_ecp_gen_keypair_base( (mbedtls_ecp_group *) grp,
G, &v, &V, f_rng, p_rng ) );
MBEDTLS_MPI_CHK( ecjpake_hash( md_info, grp, pf, G, &V, X, id, &h ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &h, &h, x ) ); /* x*h */
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &h, &v, &h ) ); /* v - x*h */
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &h, &h, &grp->N ) ); /* r */
/* Write it out */
MBEDTLS_MPI_CHK( mbedtls_ecp_tls_write_point( grp, &V,
pf, &len, *p, end - *p ) );
*p += len;
len = mbedtls_mpi_size( &h ); /* actually r */
if( end < *p || (size_t)( end - *p ) < 1 + len || len > 255 )
{
ret = MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL;
goto cleanup;
}
*(*p)++ = (unsigned char)( len & 0xFF );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &h, *p, len ) ); /* r */
*p += len;
cleanup:
mbedtls_ecp_point_free( &V );
mbedtls_mpi_free( &v );
mbedtls_mpi_free( &h );
return( ret );
}
/*
* Parse a ECJPAKEKeyKP (7.4.2.2.1) and check proof
* Output: verified public key X
*/
static int ecjpake_kkp_read( const mbedtls_md_info_t *md_info,
const mbedtls_ecp_group *grp,
const int pf,
const mbedtls_ecp_point *G,
mbedtls_ecp_point *X,
const char *id,
const unsigned char **p,
const unsigned char *end )
{
int ret;
if( end < *p )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
/*
* struct {
* ECPoint X;
* ECSchnorrZKP zkp;
* } ECJPAKEKeyKP;
*/
MBEDTLS_MPI_CHK( mbedtls_ecp_tls_read_point( grp, X, p, end - *p ) );
if( mbedtls_ecp_is_zero( X ) )
{
ret = MBEDTLS_ERR_ECP_INVALID_KEY;
goto cleanup;
}
MBEDTLS_MPI_CHK( ecjpake_zkp_read( md_info, grp, pf, G, X, id, p, end ) );
cleanup:
return( ret );
}
/*
* Generate an ECJPAKEKeyKP
* Output: the serialized structure, plus private/public key pair
*/
static int ecjpake_kkp_write( const mbedtls_md_info_t *md_info,
const mbedtls_ecp_group *grp,
const int pf,
const mbedtls_ecp_point *G,
mbedtls_mpi *x,
mbedtls_ecp_point *X,
const char *id,
unsigned char **p,
const unsigned char *end,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
size_t len;
if( end < *p )
return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
/* Generate key (7.4.2.3.1) and write it out */
MBEDTLS_MPI_CHK( mbedtls_ecp_gen_keypair_base( (mbedtls_ecp_group *) grp, G, x, X,
f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_tls_write_point( grp, X,
pf, &len, *p, end - *p ) );
*p += len;
/* Generate and write proof */
MBEDTLS_MPI_CHK( ecjpake_zkp_write( md_info, grp, pf, G, x, X, id,
p, end, f_rng, p_rng ) );
cleanup:
return( ret );
}
/*
* Read a ECJPAKEKeyKPPairList (7.4.2.3) and check proofs
* Ouputs: verified peer public keys Xa, Xb
*/
static int ecjpake_kkpp_read( const mbedtls_md_info_t *md_info,
const mbedtls_ecp_group *grp,
const int pf,
const mbedtls_ecp_point *G,
mbedtls_ecp_point *Xa,
mbedtls_ecp_point *Xb,
const char *id,
const unsigned char *buf,
size_t len )
{
int ret;
const unsigned char *p = buf;
const unsigned char *end = buf + len;
/*
* struct {
* ECJPAKEKeyKP ecjpake_key_kp_pair_list[2];
* } ECJPAKEKeyKPPairList;
*/
MBEDTLS_MPI_CHK( ecjpake_kkp_read( md_info, grp, pf, G, Xa, id, &p, end ) );
MBEDTLS_MPI_CHK( ecjpake_kkp_read( md_info, grp, pf, G, Xb, id, &p, end ) );
if( p != end )
ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
cleanup:
return( ret );
}
/*
* Generate a ECJPAKEKeyKPPairList
* Outputs: the serialized structure, plus two private/public key pairs
*/
static int ecjpake_kkpp_write( const mbedtls_md_info_t *md_info,
const mbedtls_ecp_group *grp,
const int pf,
const mbedtls_ecp_point *G,
mbedtls_mpi *xm1,
mbedtls_ecp_point *Xa,
mbedtls_mpi *xm2,
mbedtls_ecp_point *Xb,
const char *id,
unsigned char *buf,
size_t len,
size_t *olen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
unsigned char *p = buf;
const unsigned char *end = buf + len;
MBEDTLS_MPI_CHK( ecjpake_kkp_write( md_info, grp, pf, G, xm1, Xa, id,
&p, end, f_rng, p_rng ) );
MBEDTLS_MPI_CHK( ecjpake_kkp_write( md_info, grp, pf, G, xm2, Xb, id,
&p, end, f_rng, p_rng ) );
*olen = p - buf;
cleanup:
return( ret );
}
/*
* Read and process the first round message
*/
int mbedtls_ecjpake_read_round_one( mbedtls_ecjpake_context *ctx,
const unsigned char *buf,
size_t len )
{
ECJPAKE_VALIDATE_RET( ctx != NULL );
ECJPAKE_VALIDATE_RET( buf != NULL );
return( ecjpake_kkpp_read( ctx->md_info, &ctx->grp, ctx->point_format,
&ctx->grp.G,
&ctx->Xp1, &ctx->Xp2, ID_PEER,
buf, len ) );
}
/*
* Generate and write the first round message
*/
int mbedtls_ecjpake_write_round_one( mbedtls_ecjpake_context *ctx,
unsigned char *buf, size_t len, size_t *olen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
ECJPAKE_VALIDATE_RET( ctx != NULL );
ECJPAKE_VALIDATE_RET( buf != NULL );
ECJPAKE_VALIDATE_RET( olen != NULL );
ECJPAKE_VALIDATE_RET( f_rng != NULL );
return( ecjpake_kkpp_write( ctx->md_info, &ctx->grp, ctx->point_format,
&ctx->grp.G,
&ctx->xm1, &ctx->Xm1, &ctx->xm2, &ctx->Xm2,
ID_MINE, buf, len, olen, f_rng, p_rng ) );
}
/*
* Compute the sum of three points R = A + B + C
*/
static int ecjpake_ecp_add3( mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
const mbedtls_ecp_point *A,
const mbedtls_ecp_point *B,
const mbedtls_ecp_point *C )
{
int ret;
mbedtls_mpi one;
mbedtls_mpi_init( &one );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &one, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_muladd( grp, R, &one, A, &one, B ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_muladd( grp, R, &one, R, &one, C ) );
cleanup:
mbedtls_mpi_free( &one );
return( ret );
}
/*
* Read and process second round message (C: 7.4.2.5, S: 7.4.2.6)
*/
int mbedtls_ecjpake_read_round_two( mbedtls_ecjpake_context *ctx,
const unsigned char *buf,
size_t len )
{
int ret;
const unsigned char *p = buf;
const unsigned char *end = buf + len;
mbedtls_ecp_group grp;
mbedtls_ecp_point G; /* C: GB, S: GA */
ECJPAKE_VALIDATE_RET( ctx != NULL );
ECJPAKE_VALIDATE_RET( buf != NULL );
mbedtls_ecp_group_init( &grp );
mbedtls_ecp_point_init( &G );
/*
* Server: GA = X3 + X4 + X1 (7.4.2.6.1)
* Client: GB = X1 + X2 + X3 (7.4.2.5.1)
* Unified: G = Xm1 + Xm2 + Xp1
* We need that before parsing in order to check Xp as we read it
*/
MBEDTLS_MPI_CHK( ecjpake_ecp_add3( &ctx->grp, &G,
&ctx->Xm1, &ctx->Xm2, &ctx->Xp1 ) );
/*
* struct {
* ECParameters curve_params; // only client reading server msg
* ECJPAKEKeyKP ecjpake_key_kp;
* } Client/ServerECJPAKEParams;
*/
if( ctx->role == MBEDTLS_ECJPAKE_CLIENT )
{
MBEDTLS_MPI_CHK( mbedtls_ecp_tls_read_group( &grp, &p, len ) );
if( grp.id != ctx->grp.id )
{
ret = MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE;
goto cleanup;
}
}
MBEDTLS_MPI_CHK( ecjpake_kkp_read( ctx->md_info, &ctx->grp,
ctx->point_format,
&G, &ctx->Xp, ID_PEER, &p, end ) );
if( p != end )
{
ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
goto cleanup;
}
cleanup:
mbedtls_ecp_group_free( &grp );
mbedtls_ecp_point_free( &G );
return( ret );
}
/*
* Compute R = +/- X * S mod N, taking care not to leak S
*/
static int ecjpake_mul_secret( mbedtls_mpi *R, int sign,
const mbedtls_mpi *X,
const mbedtls_mpi *S,
const mbedtls_mpi *N,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
mbedtls_mpi b; /* Blinding value, then s + N * blinding */
mbedtls_mpi_init( &b );
/* b = s + rnd-128-bit * N */
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &b, 16, f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &b, &b, N ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &b, &b, S ) );
/* R = sign * X * b mod N */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( R, X, &b ) );
R->s *= sign;
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( R, R, N ) );
cleanup:
mbedtls_mpi_free( &b );
return( ret );
}
/*
* Generate and write the second round message (S: 7.4.2.5, C: 7.4.2.6)
*/
int mbedtls_ecjpake_write_round_two( mbedtls_ecjpake_context *ctx,
unsigned char *buf, size_t len, size_t *olen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
mbedtls_ecp_point G; /* C: GA, S: GB */
mbedtls_ecp_point Xm; /* C: Xc, S: Xs */
mbedtls_mpi xm; /* C: xc, S: xs */
unsigned char *p = buf;
const unsigned char *end = buf + len;
size_t ec_len;
ECJPAKE_VALIDATE_RET( ctx != NULL );
ECJPAKE_VALIDATE_RET( buf != NULL );
ECJPAKE_VALIDATE_RET( olen != NULL );
ECJPAKE_VALIDATE_RET( f_rng != NULL );
mbedtls_ecp_point_init( &G );
mbedtls_ecp_point_init( &Xm );
mbedtls_mpi_init( &xm );
/*
* First generate private/public key pair (S: 7.4.2.5.1, C: 7.4.2.6.1)
*
* Client: GA = X1 + X3 + X4 | xs = x2 * s | Xc = xc * GA
* Server: GB = X3 + X1 + X2 | xs = x4 * s | Xs = xs * GB
* Unified: G = Xm1 + Xp1 + Xp2 | xm = xm2 * s | Xm = xm * G
*/
MBEDTLS_MPI_CHK( ecjpake_ecp_add3( &ctx->grp, &G,
&ctx->Xp1, &ctx->Xp2, &ctx->Xm1 ) );
MBEDTLS_MPI_CHK( ecjpake_mul_secret( &xm, 1, &ctx->xm2, &ctx->s,
&ctx->grp.N, f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &ctx->grp, &Xm, &xm, &G, f_rng, p_rng ) );
/*
* Now write things out
*
* struct {
* ECParameters curve_params; // only server writing its message
* ECJPAKEKeyKP ecjpake_key_kp;
* } Client/ServerECJPAKEParams;
*/
if( ctx->role == MBEDTLS_ECJPAKE_SERVER )
{
if( end < p )
{
ret = MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL;
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_ecp_tls_write_group( &ctx->grp, &ec_len,
p, end - p ) );
p += ec_len;
}
if( end < p )
{
ret = MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL;
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_ecp_tls_write_point( &ctx->grp, &Xm,
ctx->point_format, &ec_len, p, end - p ) );
p += ec_len;
MBEDTLS_MPI_CHK( ecjpake_zkp_write( ctx->md_info, &ctx->grp,
ctx->point_format,
&G, &xm, &Xm, ID_MINE,
&p, end, f_rng, p_rng ) );
*olen = p - buf;
cleanup:
mbedtls_ecp_point_free( &G );
mbedtls_ecp_point_free( &Xm );
mbedtls_mpi_free( &xm );
return( ret );
}
/*
* Derive PMS (7.4.2.7 / 7.4.2.8)
*/
int mbedtls_ecjpake_derive_secret( mbedtls_ecjpake_context *ctx,
unsigned char *buf, size_t len, size_t *olen,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
mbedtls_ecp_point K;
mbedtls_mpi m_xm2_s, one;
unsigned char kx[MBEDTLS_ECP_MAX_BYTES];
size_t x_bytes;
ECJPAKE_VALIDATE_RET( ctx != NULL );
ECJPAKE_VALIDATE_RET( buf != NULL );
ECJPAKE_VALIDATE_RET( olen != NULL );
ECJPAKE_VALIDATE_RET( f_rng != NULL );
*olen = mbedtls_md_get_size( ctx->md_info );
if( len < *olen )
return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
mbedtls_ecp_point_init( &K );
mbedtls_mpi_init( &m_xm2_s );
mbedtls_mpi_init( &one );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &one, 1 ) );
/*
* Client: K = ( Xs - X4 * x2 * s ) * x2
* Server: K = ( Xc - X2 * x4 * s ) * x4
* Unified: K = ( Xp - Xp2 * xm2 * s ) * xm2
*/
MBEDTLS_MPI_CHK( ecjpake_mul_secret( &m_xm2_s, -1, &ctx->xm2, &ctx->s,
&ctx->grp.N, f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_muladd( &ctx->grp, &K,
&one, &ctx->Xp,
&m_xm2_s, &ctx->Xp2 ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &ctx->grp, &K, &ctx->xm2, &K,
f_rng, p_rng ) );
/* PMS = SHA-256( K.X ) */
x_bytes = ( ctx->grp.pbits + 7 ) / 8;
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &K.X, kx, x_bytes ) );
MBEDTLS_MPI_CHK( mbedtls_md( ctx->md_info, kx, x_bytes, buf ) );
cleanup:
mbedtls_ecp_point_free( &K );
mbedtls_mpi_free( &m_xm2_s );
mbedtls_mpi_free( &one );
return( ret );
}
#undef ID_MINE
#undef ID_PEER
#endif /* ! MBEDTLS_ECJPAKE_ALT */
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif
#if !defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \
!defined(MBEDTLS_SHA256_C)
int mbedtls_ecjpake_self_test( int verbose )
{
(void) verbose;
return( 0 );
}
#else
static const unsigned char ecjpake_test_password[] = {
0x74, 0x68, 0x72, 0x65, 0x61, 0x64, 0x6a, 0x70, 0x61, 0x6b, 0x65, 0x74,
0x65, 0x73, 0x74
};
static const unsigned char ecjpake_test_x1[] = {
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c,
0x0d, 0x0e, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18,
0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x21
};
static const unsigned char ecjpake_test_x2[] = {
0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c,
0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x81
};
static const unsigned char ecjpake_test_x3[] = {
0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c,
0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x81
};
static const unsigned char ecjpake_test_x4[] = {
0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc,
0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8,
0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, 0xe1
};
static const unsigned char ecjpake_test_cli_one[] = {
0x41, 0x04, 0xac, 0xcf, 0x01, 0x06, 0xef, 0x85, 0x8f, 0xa2, 0xd9, 0x19,
0x33, 0x13, 0x46, 0x80, 0x5a, 0x78, 0xb5, 0x8b, 0xba, 0xd0, 0xb8, 0x44,
0xe5, 0xc7, 0x89, 0x28, 0x79, 0x14, 0x61, 0x87, 0xdd, 0x26, 0x66, 0xad,
0xa7, 0x81, 0xbb, 0x7f, 0x11, 0x13, 0x72, 0x25, 0x1a, 0x89, 0x10, 0x62,
0x1f, 0x63, 0x4d, 0xf1, 0x28, 0xac, 0x48, 0xe3, 0x81, 0xfd, 0x6e, 0xf9,
0x06, 0x07, 0x31, 0xf6, 0x94, 0xa4, 0x41, 0x04, 0x1d, 0xd0, 0xbd, 0x5d,
0x45, 0x66, 0xc9, 0xbe, 0xd9, 0xce, 0x7d, 0xe7, 0x01, 0xb5, 0xe8, 0x2e,
0x08, 0xe8, 0x4b, 0x73, 0x04, 0x66, 0x01, 0x8a, 0xb9, 0x03, 0xc7, 0x9e,
0xb9, 0x82, 0x17, 0x22, 0x36, 0xc0, 0xc1, 0x72, 0x8a, 0xe4, 0xbf, 0x73,
0x61, 0x0d, 0x34, 0xde, 0x44, 0x24, 0x6e, 0xf3, 0xd9, 0xc0, 0x5a, 0x22,
0x36, 0xfb, 0x66, 0xa6, 0x58, 0x3d, 0x74, 0x49, 0x30, 0x8b, 0xab, 0xce,
0x20, 0x72, 0xfe, 0x16, 0x66, 0x29, 0x92, 0xe9, 0x23, 0x5c, 0x25, 0x00,
0x2f, 0x11, 0xb1, 0x50, 0x87, 0xb8, 0x27, 0x38, 0xe0, 0x3c, 0x94, 0x5b,
0xf7, 0xa2, 0x99, 0x5d, 0xda, 0x1e, 0x98, 0x34, 0x58, 0x41, 0x04, 0x7e,
0xa6, 0xe3, 0xa4, 0x48, 0x70, 0x37, 0xa9, 0xe0, 0xdb, 0xd7, 0x92, 0x62,
0xb2, 0xcc, 0x27, 0x3e, 0x77, 0x99, 0x30, 0xfc, 0x18, 0x40, 0x9a, 0xc5,
0x36, 0x1c, 0x5f, 0xe6, 0x69, 0xd7, 0x02, 0xe1, 0x47, 0x79, 0x0a, 0xeb,
0x4c, 0xe7, 0xfd, 0x65, 0x75, 0xab, 0x0f, 0x6c, 0x7f, 0xd1, 0xc3, 0x35,
0x93, 0x9a, 0xa8, 0x63, 0xba, 0x37, 0xec, 0x91, 0xb7, 0xe3, 0x2b, 0xb0,
0x13, 0xbb, 0x2b, 0x41, 0x04, 0xa4, 0x95, 0x58, 0xd3, 0x2e, 0xd1, 0xeb,
0xfc, 0x18, 0x16, 0xaf, 0x4f, 0xf0, 0x9b, 0x55, 0xfc, 0xb4, 0xca, 0x47,
0xb2, 0xa0, 0x2d, 0x1e, 0x7c, 0xaf, 0x11, 0x79, 0xea, 0x3f, 0xe1, 0x39,
0x5b, 0x22, 0xb8, 0x61, 0x96, 0x40, 0x16, 0xfa, 0xba, 0xf7, 0x2c, 0x97,
0x56, 0x95, 0xd9, 0x3d, 0x4d, 0xf0, 0xe5, 0x19, 0x7f, 0xe9, 0xf0, 0x40,
0x63, 0x4e, 0xd5, 0x97, 0x64, 0x93, 0x77, 0x87, 0xbe, 0x20, 0xbc, 0x4d,
0xee, 0xbb, 0xf9, 0xb8, 0xd6, 0x0a, 0x33, 0x5f, 0x04, 0x6c, 0xa3, 0xaa,
0x94, 0x1e, 0x45, 0x86, 0x4c, 0x7c, 0xad, 0xef, 0x9c, 0xf7, 0x5b, 0x3d,
0x8b, 0x01, 0x0e, 0x44, 0x3e, 0xf0
};
static const unsigned char ecjpake_test_srv_one[] = {
0x41, 0x04, 0x7e, 0xa6, 0xe3, 0xa4, 0x48, 0x70, 0x37, 0xa9, 0xe0, 0xdb,
0xd7, 0x92, 0x62, 0xb2, 0xcc, 0x27, 0x3e, 0x77, 0x99, 0x30, 0xfc, 0x18,
0x40, 0x9a, 0xc5, 0x36, 0x1c, 0x5f, 0xe6, 0x69, 0xd7, 0x02, 0xe1, 0x47,
0x79, 0x0a, 0xeb, 0x4c, 0xe7, 0xfd, 0x65, 0x75, 0xab, 0x0f, 0x6c, 0x7f,
0xd1, 0xc3, 0x35, 0x93, 0x9a, 0xa8, 0x63, 0xba, 0x37, 0xec, 0x91, 0xb7,
0xe3, 0x2b, 0xb0, 0x13, 0xbb, 0x2b, 0x41, 0x04, 0x09, 0xf8, 0x5b, 0x3d,
0x20, 0xeb, 0xd7, 0x88, 0x5c, 0xe4, 0x64, 0xc0, 0x8d, 0x05, 0x6d, 0x64,
0x28, 0xfe, 0x4d, 0xd9, 0x28, 0x7a, 0xa3, 0x65, 0xf1, 0x31, 0xf4, 0x36,
0x0f, 0xf3, 0x86, 0xd8, 0x46, 0x89, 0x8b, 0xc4, 0xb4, 0x15, 0x83, 0xc2,
0xa5, 0x19, 0x7f, 0x65, 0xd7, 0x87, 0x42, 0x74, 0x6c, 0x12, 0xa5, 0xec,
0x0a, 0x4f, 0xfe, 0x2f, 0x27, 0x0a, 0x75, 0x0a, 0x1d, 0x8f, 0xb5, 0x16,
0x20, 0x93, 0x4d, 0x74, 0xeb, 0x43, 0xe5, 0x4d, 0xf4, 0x24, 0xfd, 0x96,
0x30, 0x6c, 0x01, 0x17, 0xbf, 0x13, 0x1a, 0xfa, 0xbf, 0x90, 0xa9, 0xd3,
0x3d, 0x11, 0x98, 0xd9, 0x05, 0x19, 0x37, 0x35, 0x14, 0x41, 0x04, 0x19,
0x0a, 0x07, 0x70, 0x0f, 0xfa, 0x4b, 0xe6, 0xae, 0x1d, 0x79, 0xee, 0x0f,
0x06, 0xae, 0xb5, 0x44, 0xcd, 0x5a, 0xdd, 0xaa, 0xbe, 0xdf, 0x70, 0xf8,
0x62, 0x33, 0x21, 0x33, 0x2c, 0x54, 0xf3, 0x55, 0xf0, 0xfb, 0xfe, 0xc7,
0x83, 0xed, 0x35, 0x9e, 0x5d, 0x0b, 0xf7, 0x37, 0x7a, 0x0f, 0xc4, 0xea,
0x7a, 0xce, 0x47, 0x3c, 0x9c, 0x11, 0x2b, 0x41, 0xcc, 0xd4, 0x1a, 0xc5,
0x6a, 0x56, 0x12, 0x41, 0x04, 0x36, 0x0a, 0x1c, 0xea, 0x33, 0xfc, 0xe6,
0x41, 0x15, 0x64, 0x58, 0xe0, 0xa4, 0xea, 0xc2, 0x19, 0xe9, 0x68, 0x31,
0xe6, 0xae, 0xbc, 0x88, 0xb3, 0xf3, 0x75, 0x2f, 0x93, 0xa0, 0x28, 0x1d,
0x1b, 0xf1, 0xfb, 0x10, 0x60, 0x51, 0xdb, 0x96, 0x94, 0xa8, 0xd6, 0xe8,
0x62, 0xa5, 0xef, 0x13, 0x24, 0xa3, 0xd9, 0xe2, 0x78, 0x94, 0xf1, 0xee,
0x4f, 0x7c, 0x59, 0x19, 0x99, 0x65, 0xa8, 0xdd, 0x4a, 0x20, 0x91, 0x84,
0x7d, 0x2d, 0x22, 0xdf, 0x3e, 0xe5, 0x5f, 0xaa, 0x2a, 0x3f, 0xb3, 0x3f,
0xd2, 0xd1, 0xe0, 0x55, 0xa0, 0x7a, 0x7c, 0x61, 0xec, 0xfb, 0x8d, 0x80,
0xec, 0x00, 0xc2, 0xc9, 0xeb, 0x12
};
static const unsigned char ecjpake_test_srv_two[] = {
0x03, 0x00, 0x17, 0x41, 0x04, 0x0f, 0xb2, 0x2b, 0x1d, 0x5d, 0x11, 0x23,
0xe0, 0xef, 0x9f, 0xeb, 0x9d, 0x8a, 0x2e, 0x59, 0x0a, 0x1f, 0x4d, 0x7c,
0xed, 0x2c, 0x2b, 0x06, 0x58, 0x6e, 0x8f, 0x2a, 0x16, 0xd4, 0xeb, 0x2f,
0xda, 0x43, 0x28, 0xa2, 0x0b, 0x07, 0xd8, 0xfd, 0x66, 0x76, 0x54, 0xca,
0x18, 0xc5, 0x4e, 0x32, 0xa3, 0x33, 0xa0, 0x84, 0x54, 0x51, 0xe9, 0x26,
0xee, 0x88, 0x04, 0xfd, 0x7a, 0xf0, 0xaa, 0xa7, 0xa6, 0x41, 0x04, 0x55,
0x16, 0xea, 0x3e, 0x54, 0xa0, 0xd5, 0xd8, 0xb2, 0xce, 0x78, 0x6b, 0x38,
0xd3, 0x83, 0x37, 0x00, 0x29, 0xa5, 0xdb, 0xe4, 0x45, 0x9c, 0x9d, 0xd6,
0x01, 0xb4, 0x08, 0xa2, 0x4a, 0xe6, 0x46, 0x5c, 0x8a, 0xc9, 0x05, 0xb9,
0xeb, 0x03, 0xb5, 0xd3, 0x69, 0x1c, 0x13, 0x9e, 0xf8, 0x3f, 0x1c, 0xd4,
0x20, 0x0f, 0x6c, 0x9c, 0xd4, 0xec, 0x39, 0x22, 0x18, 0xa5, 0x9e, 0xd2,
0x43, 0xd3, 0xc8, 0x20, 0xff, 0x72, 0x4a, 0x9a, 0x70, 0xb8, 0x8c, 0xb8,
0x6f, 0x20, 0xb4, 0x34, 0xc6, 0x86, 0x5a, 0xa1, 0xcd, 0x79, 0x06, 0xdd,
0x7c, 0x9b, 0xce, 0x35, 0x25, 0xf5, 0x08, 0x27, 0x6f, 0x26, 0x83, 0x6c
};
static const unsigned char ecjpake_test_cli_two[] = {
0x41, 0x04, 0x69, 0xd5, 0x4e, 0xe8, 0x5e, 0x90, 0xce, 0x3f, 0x12, 0x46,
0x74, 0x2d, 0xe5, 0x07, 0xe9, 0x39, 0xe8, 0x1d, 0x1d, 0xc1, 0xc5, 0xcb,
0x98, 0x8b, 0x58, 0xc3, 0x10, 0xc9, 0xfd, 0xd9, 0x52, 0x4d, 0x93, 0x72,
0x0b, 0x45, 0x54, 0x1c, 0x83, 0xee, 0x88, 0x41, 0x19, 0x1d, 0xa7, 0xce,
0xd8, 0x6e, 0x33, 0x12, 0xd4, 0x36, 0x23, 0xc1, 0xd6, 0x3e, 0x74, 0x98,
0x9a, 0xba, 0x4a, 0xff, 0xd1, 0xee, 0x41, 0x04, 0x07, 0x7e, 0x8c, 0x31,
0xe2, 0x0e, 0x6b, 0xed, 0xb7, 0x60, 0xc1, 0x35, 0x93, 0xe6, 0x9f, 0x15,
0xbe, 0x85, 0xc2, 0x7d, 0x68, 0xcd, 0x09, 0xcc, 0xb8, 0xc4, 0x18, 0x36,
0x08, 0x91, 0x7c, 0x5c, 0x3d, 0x40, 0x9f, 0xac, 0x39, 0xfe, 0xfe, 0xe8,
0x2f, 0x72, 0x92, 0xd3, 0x6f, 0x0d, 0x23, 0xe0, 0x55, 0x91, 0x3f, 0x45,
0xa5, 0x2b, 0x85, 0xdd, 0x8a, 0x20, 0x52, 0xe9, 0xe1, 0x29, 0xbb, 0x4d,
0x20, 0x0f, 0x01, 0x1f, 0x19, 0x48, 0x35, 0x35, 0xa6, 0xe8, 0x9a, 0x58,
0x0c, 0x9b, 0x00, 0x03, 0xba, 0xf2, 0x14, 0x62, 0xec, 0xe9, 0x1a, 0x82,
0xcc, 0x38, 0xdb, 0xdc, 0xae, 0x60, 0xd9, 0xc5, 0x4c
};
static const unsigned char ecjpake_test_pms[] = {
0xf3, 0xd4, 0x7f, 0x59, 0x98, 0x44, 0xdb, 0x92, 0xa5, 0x69, 0xbb, 0xe7,
0x98, 0x1e, 0x39, 0xd9, 0x31, 0xfd, 0x74, 0x3b, 0xf2, 0x2e, 0x98, 0xf9,
0xb4, 0x38, 0xf7, 0x19, 0xd3, 0xc4, 0xf3, 0x51
};
/* Load my private keys and generate the correponding public keys */
static int ecjpake_test_load( mbedtls_ecjpake_context *ctx,
const unsigned char *xm1, size_t len1,
const unsigned char *xm2, size_t len2 )
{
int ret;
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->xm1, xm1, len1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->xm2, xm2, len2 ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &ctx->grp, &ctx->Xm1, &ctx->xm1,
&ctx->grp.G, NULL, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &ctx->grp, &ctx->Xm2, &ctx->xm2,
&ctx->grp.G, NULL, NULL ) );
cleanup:
return( ret );
}
/* For tests we don't need a secure RNG;
* use the LGC from Numerical Recipes for simplicity */
static int ecjpake_lgc( void *p, unsigned char *out, size_t len )
{
static uint32_t x = 42;
(void) p;
while( len > 0 )
{
size_t use_len = len > 4 ? 4 : len;
x = 1664525 * x + 1013904223;
memcpy( out, &x, use_len );
out += use_len;
len -= use_len;
}
return( 0 );
}
#define TEST_ASSERT( x ) \
do { \
if( x ) \
ret = 0; \
else \
{ \
ret = 1; \
goto cleanup; \
} \
} while( 0 )
/*
* Checkup routine
*/
int mbedtls_ecjpake_self_test( int verbose )
{
int ret;
mbedtls_ecjpake_context cli;
mbedtls_ecjpake_context srv;
unsigned char buf[512], pms[32];
size_t len, pmslen;
mbedtls_ecjpake_init( &cli );
mbedtls_ecjpake_init( &srv );
if( verbose != 0 )
mbedtls_printf( " ECJPAKE test #0 (setup): " );
TEST_ASSERT( mbedtls_ecjpake_setup( &cli, MBEDTLS_ECJPAKE_CLIENT,
MBEDTLS_MD_SHA256, MBEDTLS_ECP_DP_SECP256R1,
ecjpake_test_password,
sizeof( ecjpake_test_password ) ) == 0 );
TEST_ASSERT( mbedtls_ecjpake_setup( &srv, MBEDTLS_ECJPAKE_SERVER,
MBEDTLS_MD_SHA256, MBEDTLS_ECP_DP_SECP256R1,
ecjpake_test_password,
sizeof( ecjpake_test_password ) ) == 0 );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
if( verbose != 0 )
mbedtls_printf( " ECJPAKE test #1 (random handshake): " );
TEST_ASSERT( mbedtls_ecjpake_write_round_one( &cli,
buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
TEST_ASSERT( mbedtls_ecjpake_read_round_one( &srv, buf, len ) == 0 );
TEST_ASSERT( mbedtls_ecjpake_write_round_one( &srv,
buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
TEST_ASSERT( mbedtls_ecjpake_read_round_one( &cli, buf, len ) == 0 );
TEST_ASSERT( mbedtls_ecjpake_write_round_two( &srv,
buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
TEST_ASSERT( mbedtls_ecjpake_read_round_two( &cli, buf, len ) == 0 );
TEST_ASSERT( mbedtls_ecjpake_derive_secret( &cli,
pms, sizeof( pms ), &pmslen, ecjpake_lgc, NULL ) == 0 );
TEST_ASSERT( mbedtls_ecjpake_write_round_two( &cli,
buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
TEST_ASSERT( mbedtls_ecjpake_read_round_two( &srv, buf, len ) == 0 );
TEST_ASSERT( mbedtls_ecjpake_derive_secret( &srv,
buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
TEST_ASSERT( len == pmslen );
TEST_ASSERT( memcmp( buf, pms, len ) == 0 );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
if( verbose != 0 )
mbedtls_printf( " ECJPAKE test #2 (reference handshake): " );
/* Simulate generation of round one */
MBEDTLS_MPI_CHK( ecjpake_test_load( &cli,
ecjpake_test_x1, sizeof( ecjpake_test_x1 ),
ecjpake_test_x2, sizeof( ecjpake_test_x2 ) ) );
MBEDTLS_MPI_CHK( ecjpake_test_load( &srv,
ecjpake_test_x3, sizeof( ecjpake_test_x3 ),
ecjpake_test_x4, sizeof( ecjpake_test_x4 ) ) );
/* Read round one */
TEST_ASSERT( mbedtls_ecjpake_read_round_one( &srv,
ecjpake_test_cli_one,
sizeof( ecjpake_test_cli_one ) ) == 0 );
TEST_ASSERT( mbedtls_ecjpake_read_round_one( &cli,
ecjpake_test_srv_one,
sizeof( ecjpake_test_srv_one ) ) == 0 );
/* Skip generation of round two, read round two */
TEST_ASSERT( mbedtls_ecjpake_read_round_two( &cli,
ecjpake_test_srv_two,
sizeof( ecjpake_test_srv_two ) ) == 0 );
TEST_ASSERT( mbedtls_ecjpake_read_round_two( &srv,
ecjpake_test_cli_two,
sizeof( ecjpake_test_cli_two ) ) == 0 );
/* Server derives PMS */
TEST_ASSERT( mbedtls_ecjpake_derive_secret( &srv,
buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
TEST_ASSERT( len == sizeof( ecjpake_test_pms ) );
TEST_ASSERT( memcmp( buf, ecjpake_test_pms, len ) == 0 );
memset( buf, 0, len ); /* Avoid interferences with next step */
/* Client derives PMS */
TEST_ASSERT( mbedtls_ecjpake_derive_secret( &cli,
buf, sizeof( buf ), &len, ecjpake_lgc, NULL ) == 0 );
TEST_ASSERT( len == sizeof( ecjpake_test_pms ) );
TEST_ASSERT( memcmp( buf, ecjpake_test_pms, len ) == 0 );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
cleanup:
mbedtls_ecjpake_free( &cli );
mbedtls_ecjpake_free( &srv );
if( ret != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
}
if( verbose != 0 )
mbedtls_printf( "\n" );
return( ret );
}
#undef TEST_ASSERT
#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED && MBEDTLS_SHA256_C */
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_ECJPAKE_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/ecjpake.c | C | apache-2.0 | 39,003 |
/*
* Elliptic curves over GF(p): generic functions
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* References:
*
* SEC1 http://www.secg.org/index.php?action=secg,docs_secg
* GECC = Guide to Elliptic Curve Cryptography - Hankerson, Menezes, Vanstone
* FIPS 186-3 http://csrc.nist.gov/publications/fips/fips186-3/fips_186-3.pdf
* RFC 4492 for the related TLS structures and constants
* RFC 7748 for the Curve448 and Curve25519 curve definitions
*
* [Curve25519] http://cr.yp.to/ecdh/curve25519-20060209.pdf
*
* [2] CORON, Jean-S'ebastien. Resistance against differential power analysis
* for elliptic curve cryptosystems. In : Cryptographic Hardware and
* Embedded Systems. Springer Berlin Heidelberg, 1999. p. 292-302.
* <http://link.springer.com/chapter/10.1007/3-540-48059-5_25>
*
* [3] HEDABOU, Mustapha, PINEL, Pierre, et B'EN'ETEAU, Lucien. A comb method to
* render ECC resistant against Side Channel Attacks. IACR Cryptology
* ePrint Archive, 2004, vol. 2004, p. 342.
* <http://eprint.iacr.org/2004/342.pdf>
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
/**
* \brief Function level alternative implementation.
*
* The MBEDTLS_ECP_INTERNAL_ALT macro enables alternative implementations to
* replace certain functions in this module. The alternative implementations are
* typically hardware accelerators and need to activate the hardware before the
* computation starts and deactivate it after it finishes. The
* mbedtls_internal_ecp_init() and mbedtls_internal_ecp_free() functions serve
* this purpose.
*
* To preserve the correct functionality the following conditions must hold:
*
* - The alternative implementation must be activated by
* mbedtls_internal_ecp_init() before any of the replaceable functions is
* called.
* - mbedtls_internal_ecp_free() must \b only be called when the alternative
* implementation is activated.
* - mbedtls_internal_ecp_init() must \b not be called when the alternative
* implementation is activated.
* - Public functions must not return while the alternative implementation is
* activated.
* - Replaceable functions are guarded by \c MBEDTLS_ECP_XXX_ALT macros and
* before calling them an \code if( mbedtls_internal_ecp_grp_capable( grp ) )
* \endcode ensures that the alternative implementation supports the current
* group.
*/
#if defined(MBEDTLS_ECP_INTERNAL_ALT)
#endif
#if defined(MBEDTLS_ECP_C)
#include "mbedtls/ecp.h"
#include "mbedtls/threading.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if !defined(MBEDTLS_ECP_ALT)
/* Parameter validation macros based on platform_util.h */
#define ECP_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_ECP_BAD_INPUT_DATA )
#define ECP_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#include <stdio.h>
#define mbedtls_printf printf
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#include "mbedtls/ecp_internal.h"
#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
!defined(inline) && !defined(__cplusplus)
#define inline __inline
#endif
#if defined(MBEDTLS_SELF_TEST)
/*
* Counts of point addition and doubling, and field multiplications.
* Used to test resistance of point multiplication to simple timing attacks.
*/
static unsigned long add_count, dbl_count, mul_count;
#endif
#if defined(MBEDTLS_ECP_RESTARTABLE)
/*
* Maximum number of "basic operations" to be done in a row.
*
* Default value 0 means that ECC operations will not yield.
* Note that regardless of the value of ecp_max_ops, always at
* least one step is performed before yielding.
*
* Setting ecp_max_ops=1 can be suitable for testing purposes
* as it will interrupt computation at all possible points.
*/
static unsigned ecp_max_ops = 0;
/*
* Set ecp_max_ops
*/
void mbedtls_ecp_set_max_ops( unsigned max_ops )
{
ecp_max_ops = max_ops;
}
/*
* Check if restart is enabled
*/
int mbedtls_ecp_restart_is_enabled( void )
{
return( ecp_max_ops != 0 );
}
/*
* Restart sub-context for ecp_mul_comb()
*/
struct mbedtls_ecp_restart_mul
{
mbedtls_ecp_point R; /* current intermediate result */
size_t i; /* current index in various loops, 0 outside */
mbedtls_ecp_point *T; /* table for precomputed points */
unsigned char T_size; /* number of points in table T */
enum { /* what were we doing last time we returned? */
ecp_rsm_init = 0, /* nothing so far, dummy initial state */
ecp_rsm_pre_dbl, /* precompute 2^n multiples */
ecp_rsm_pre_norm_dbl, /* normalize precomputed 2^n multiples */
ecp_rsm_pre_add, /* precompute remaining points by adding */
ecp_rsm_pre_norm_add, /* normalize all precomputed points */
ecp_rsm_comb_core, /* ecp_mul_comb_core() */
ecp_rsm_final_norm, /* do the final normalization */
} state;
};
/*
* Init restart_mul sub-context
*/
static void ecp_restart_rsm_init( mbedtls_ecp_restart_mul_ctx *ctx )
{
mbedtls_ecp_point_init( &ctx->R );
ctx->i = 0;
ctx->T = NULL;
ctx->T_size = 0;
ctx->state = ecp_rsm_init;
}
/*
* Free the components of a restart_mul sub-context
*/
static void ecp_restart_rsm_free( mbedtls_ecp_restart_mul_ctx *ctx )
{
unsigned char i;
if( ctx == NULL )
return;
mbedtls_ecp_point_free( &ctx->R );
if( ctx->T != NULL )
{
for( i = 0; i < ctx->T_size; i++ )
mbedtls_ecp_point_free( ctx->T + i );
mbedtls_free( ctx->T );
}
ecp_restart_rsm_init( ctx );
}
/*
* Restart context for ecp_muladd()
*/
struct mbedtls_ecp_restart_muladd
{
mbedtls_ecp_point mP; /* mP value */
mbedtls_ecp_point R; /* R intermediate result */
enum { /* what should we do next? */
ecp_rsma_mul1 = 0, /* first multiplication */
ecp_rsma_mul2, /* second multiplication */
ecp_rsma_add, /* addition */
ecp_rsma_norm, /* normalization */
} state;
};
/*
* Init restart_muladd sub-context
*/
static void ecp_restart_ma_init( mbedtls_ecp_restart_muladd_ctx *ctx )
{
mbedtls_ecp_point_init( &ctx->mP );
mbedtls_ecp_point_init( &ctx->R );
ctx->state = ecp_rsma_mul1;
}
/*
* Free the components of a restart_muladd sub-context
*/
static void ecp_restart_ma_free( mbedtls_ecp_restart_muladd_ctx *ctx )
{
if( ctx == NULL )
return;
mbedtls_ecp_point_free( &ctx->mP );
mbedtls_ecp_point_free( &ctx->R );
ecp_restart_ma_init( ctx );
}
/*
* Initialize a restart context
*/
void mbedtls_ecp_restart_init( mbedtls_ecp_restart_ctx *ctx )
{
ECP_VALIDATE( ctx != NULL );
ctx->ops_done = 0;
ctx->depth = 0;
ctx->rsm = NULL;
ctx->ma = NULL;
}
/*
* Free the components of a restart context
*/
void mbedtls_ecp_restart_free( mbedtls_ecp_restart_ctx *ctx )
{
if( ctx == NULL )
return;
ecp_restart_rsm_free( ctx->rsm );
mbedtls_free( ctx->rsm );
ecp_restart_ma_free( ctx->ma );
mbedtls_free( ctx->ma );
mbedtls_ecp_restart_init( ctx );
}
/*
* Check if we can do the next step
*/
int mbedtls_ecp_check_budget( const mbedtls_ecp_group *grp,
mbedtls_ecp_restart_ctx *rs_ctx,
unsigned ops )
{
ECP_VALIDATE_RET( grp != NULL );
if( rs_ctx != NULL && ecp_max_ops != 0 )
{
/* scale depending on curve size: the chosen reference is 256-bit,
* and multiplication is quadratic. Round to the closest integer. */
if( grp->pbits >= 512 )
ops *= 4;
else if( grp->pbits >= 384 )
ops *= 2;
/* Avoid infinite loops: always allow first step.
* Because of that, however, it's not generally true
* that ops_done <= ecp_max_ops, so the check
* ops_done > ecp_max_ops below is mandatory. */
if( ( rs_ctx->ops_done != 0 ) &&
( rs_ctx->ops_done > ecp_max_ops ||
ops > ecp_max_ops - rs_ctx->ops_done ) )
{
return( MBEDTLS_ERR_ECP_IN_PROGRESS );
}
/* update running count */
rs_ctx->ops_done += ops;
}
return( 0 );
}
/* Call this when entering a function that needs its own sub-context */
#define ECP_RS_ENTER( SUB ) do { \
/* reset ops count for this call if top-level */ \
if( rs_ctx != NULL && rs_ctx->depth++ == 0 ) \
rs_ctx->ops_done = 0; \
\
/* set up our own sub-context if needed */ \
if( mbedtls_ecp_restart_is_enabled() && \
rs_ctx != NULL && rs_ctx->SUB == NULL ) \
{ \
rs_ctx->SUB = mbedtls_calloc( 1, sizeof( *rs_ctx->SUB ) ); \
if( rs_ctx->SUB == NULL ) \
return( MBEDTLS_ERR_ECP_ALLOC_FAILED ); \
\
ecp_restart_## SUB ##_init( rs_ctx->SUB ); \
} \
} while( 0 )
/* Call this when leaving a function that needs its own sub-context */
#define ECP_RS_LEAVE( SUB ) do { \
/* clear our sub-context when not in progress (done or error) */ \
if( rs_ctx != NULL && rs_ctx->SUB != NULL && \
ret != MBEDTLS_ERR_ECP_IN_PROGRESS ) \
{ \
ecp_restart_## SUB ##_free( rs_ctx->SUB ); \
mbedtls_free( rs_ctx->SUB ); \
rs_ctx->SUB = NULL; \
} \
\
if( rs_ctx != NULL ) \
rs_ctx->depth--; \
} while( 0 )
#else /* MBEDTLS_ECP_RESTARTABLE */
#define ECP_RS_ENTER( sub ) (void) rs_ctx;
#define ECP_RS_LEAVE( sub ) (void) rs_ctx;
#endif /* MBEDTLS_ECP_RESTARTABLE */
#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
#define ECP_SHORTWEIERSTRASS
#endif
#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) || \
defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
#define ECP_MONTGOMERY
#endif
/*
* Curve types: internal for now, might be exposed later
*/
typedef enum
{
ECP_TYPE_NONE = 0,
ECP_TYPE_SHORT_WEIERSTRASS, /* y^2 = x^3 + a x + b */
ECP_TYPE_MONTGOMERY, /* y^2 = x^3 + a x^2 + x */
} ecp_curve_type;
/*
* List of supported curves:
* - internal ID
* - TLS NamedCurve ID (RFC 4492 sec. 5.1.1, RFC 7071 sec. 2)
* - size in bits
* - readable name
*
* Curves are listed in order: largest curves first, and for a given size,
* fastest curves first. This provides the default order for the SSL module.
*
* Reminder: update profiles in x509_crt.c when adding a new curves!
*/
static const mbedtls_ecp_curve_info ecp_supported_curves[] =
{
#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
{ MBEDTLS_ECP_DP_SECP521R1, 25, 521, "secp521r1" },
#endif
#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
{ MBEDTLS_ECP_DP_BP512R1, 28, 512, "brainpoolP512r1" },
#endif
#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
{ MBEDTLS_ECP_DP_SECP384R1, 24, 384, "secp384r1" },
#endif
#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
{ MBEDTLS_ECP_DP_BP384R1, 27, 384, "brainpoolP384r1" },
#endif
#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
{ MBEDTLS_ECP_DP_SECP256R1, 23, 256, "secp256r1" },
#endif
#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
{ MBEDTLS_ECP_DP_SECP256K1, 22, 256, "secp256k1" },
#endif
#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
{ MBEDTLS_ECP_DP_BP256R1, 26, 256, "brainpoolP256r1" },
#endif
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
{ MBEDTLS_ECP_DP_SECP224R1, 21, 224, "secp224r1" },
#endif
#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
{ MBEDTLS_ECP_DP_SECP224K1, 20, 224, "secp224k1" },
#endif
#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
{ MBEDTLS_ECP_DP_SECP192R1, 19, 192, "secp192r1" },
#endif
#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
{ MBEDTLS_ECP_DP_SECP192K1, 18, 192, "secp192k1" },
#endif
{ MBEDTLS_ECP_DP_NONE, 0, 0, NULL },
};
#define ECP_NB_CURVES sizeof( ecp_supported_curves ) / \
sizeof( ecp_supported_curves[0] )
static mbedtls_ecp_group_id ecp_supported_grp_id[ECP_NB_CURVES];
/*
* List of supported curves and associated info
*/
const mbedtls_ecp_curve_info *mbedtls_ecp_curve_list( void )
{
return( ecp_supported_curves );
}
/*
* List of supported curves, group ID only
*/
const mbedtls_ecp_group_id *mbedtls_ecp_grp_id_list( void )
{
static int init_done = 0;
if( ! init_done )
{
size_t i = 0;
const mbedtls_ecp_curve_info *curve_info;
for( curve_info = mbedtls_ecp_curve_list();
curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
curve_info++ )
{
ecp_supported_grp_id[i++] = curve_info->grp_id;
}
ecp_supported_grp_id[i] = MBEDTLS_ECP_DP_NONE;
init_done = 1;
}
return( ecp_supported_grp_id );
}
/*
* Get the curve info for the internal identifier
*/
const mbedtls_ecp_curve_info *mbedtls_ecp_curve_info_from_grp_id( mbedtls_ecp_group_id grp_id )
{
const mbedtls_ecp_curve_info *curve_info;
for( curve_info = mbedtls_ecp_curve_list();
curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
curve_info++ )
{
if( curve_info->grp_id == grp_id )
return( curve_info );
}
return( NULL );
}
/*
* Get the curve info from the TLS identifier
*/
const mbedtls_ecp_curve_info *mbedtls_ecp_curve_info_from_tls_id( uint16_t tls_id )
{
const mbedtls_ecp_curve_info *curve_info;
for( curve_info = mbedtls_ecp_curve_list();
curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
curve_info++ )
{
if( curve_info->tls_id == tls_id )
return( curve_info );
}
return( NULL );
}
/*
* Get the curve info from the name
*/
const mbedtls_ecp_curve_info *mbedtls_ecp_curve_info_from_name( const char *name )
{
const mbedtls_ecp_curve_info *curve_info;
if( name == NULL )
return( NULL );
for( curve_info = mbedtls_ecp_curve_list();
curve_info->grp_id != MBEDTLS_ECP_DP_NONE;
curve_info++ )
{
if( strcmp( curve_info->name, name ) == 0 )
return( curve_info );
}
return( NULL );
}
/*
* Get the type of a curve
*/
static inline ecp_curve_type ecp_get_type( const mbedtls_ecp_group *grp )
{
if( grp->G.X.p == NULL )
return( ECP_TYPE_NONE );
if( grp->G.Y.p == NULL )
return( ECP_TYPE_MONTGOMERY );
else
return( ECP_TYPE_SHORT_WEIERSTRASS );
}
/*
* Initialize (the components of) a point
*/
void mbedtls_ecp_point_init( mbedtls_ecp_point *pt )
{
ECP_VALIDATE( pt != NULL );
mbedtls_mpi_init( &pt->X );
mbedtls_mpi_init( &pt->Y );
mbedtls_mpi_init( &pt->Z );
}
/*
* Initialize (the components of) a group
*/
void mbedtls_ecp_group_init( mbedtls_ecp_group *grp )
{
ECP_VALIDATE( grp != NULL );
grp->id = MBEDTLS_ECP_DP_NONE;
mbedtls_mpi_init( &grp->P );
mbedtls_mpi_init( &grp->A );
mbedtls_mpi_init( &grp->B );
mbedtls_ecp_point_init( &grp->G );
mbedtls_mpi_init( &grp->N );
grp->pbits = 0;
grp->nbits = 0;
grp->h = 0;
grp->modp = NULL;
grp->t_pre = NULL;
grp->t_post = NULL;
grp->t_data = NULL;
grp->T = NULL;
grp->T_size = 0;
}
/*
* Initialize (the components of) a key pair
*/
void mbedtls_ecp_keypair_init( mbedtls_ecp_keypair *key )
{
ECP_VALIDATE( key != NULL );
mbedtls_ecp_group_init( &key->grp );
mbedtls_mpi_init( &key->d );
mbedtls_ecp_point_init( &key->Q );
}
/*
* Unallocate (the components of) a point
*/
void mbedtls_ecp_point_free( mbedtls_ecp_point *pt )
{
if( pt == NULL )
return;
mbedtls_mpi_free( &( pt->X ) );
mbedtls_mpi_free( &( pt->Y ) );
mbedtls_mpi_free( &( pt->Z ) );
}
/*
* Unallocate (the components of) a group
*/
void mbedtls_ecp_group_free( mbedtls_ecp_group *grp )
{
size_t i;
if( grp == NULL )
return;
if( grp->h != 1 )
{
mbedtls_mpi_free( &grp->P );
mbedtls_mpi_free( &grp->A );
mbedtls_mpi_free( &grp->B );
mbedtls_ecp_point_free( &grp->G );
mbedtls_mpi_free( &grp->N );
}
if( grp->T != NULL )
{
for( i = 0; i < grp->T_size; i++ )
mbedtls_ecp_point_free( &grp->T[i] );
mbedtls_free( grp->T );
}
mbedtls_platform_zeroize( grp, sizeof( mbedtls_ecp_group ) );
}
/*
* Unallocate (the components of) a key pair
*/
void mbedtls_ecp_keypair_free( mbedtls_ecp_keypair *key )
{
if( key == NULL )
return;
mbedtls_ecp_group_free( &key->grp );
mbedtls_mpi_free( &key->d );
mbedtls_ecp_point_free( &key->Q );
}
/*
* Copy the contents of a point
*/
int mbedtls_ecp_copy( mbedtls_ecp_point *P, const mbedtls_ecp_point *Q )
{
int ret;
ECP_VALIDATE_RET( P != NULL );
ECP_VALIDATE_RET( Q != NULL );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &P->X, &Q->X ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &P->Y, &Q->Y ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &P->Z, &Q->Z ) );
cleanup:
return( ret );
}
/*
* Copy the contents of a group object
*/
int mbedtls_ecp_group_copy( mbedtls_ecp_group *dst, const mbedtls_ecp_group *src )
{
ECP_VALIDATE_RET( dst != NULL );
ECP_VALIDATE_RET( src != NULL );
return( mbedtls_ecp_group_load( dst, src->id ) );
}
/*
* Set point to zero
*/
int mbedtls_ecp_set_zero( mbedtls_ecp_point *pt )
{
int ret;
ECP_VALIDATE_RET( pt != NULL );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &pt->X , 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &pt->Y , 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &pt->Z , 0 ) );
cleanup:
return( ret );
}
/*
* Tell if a point is zero
*/
int mbedtls_ecp_is_zero( mbedtls_ecp_point *pt )
{
ECP_VALIDATE_RET( pt != NULL );
return( mbedtls_mpi_cmp_int( &pt->Z, 0 ) == 0 );
}
/*
* Compare two points lazily
*/
int mbedtls_ecp_point_cmp( const mbedtls_ecp_point *P,
const mbedtls_ecp_point *Q )
{
ECP_VALIDATE_RET( P != NULL );
ECP_VALIDATE_RET( Q != NULL );
if( mbedtls_mpi_cmp_mpi( &P->X, &Q->X ) == 0 &&
mbedtls_mpi_cmp_mpi( &P->Y, &Q->Y ) == 0 &&
mbedtls_mpi_cmp_mpi( &P->Z, &Q->Z ) == 0 )
{
return( 0 );
}
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
}
/*
* Import a non-zero point from ASCII strings
*/
int mbedtls_ecp_point_read_string( mbedtls_ecp_point *P, int radix,
const char *x, const char *y )
{
int ret;
ECP_VALIDATE_RET( P != NULL );
ECP_VALIDATE_RET( x != NULL );
ECP_VALIDATE_RET( y != NULL );
MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &P->X, radix, x ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &P->Y, radix, y ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &P->Z, 1 ) );
cleanup:
return( ret );
}
/*
* Export a point into unsigned binary data (SEC1 2.3.3)
*/
int mbedtls_ecp_point_write_binary( const mbedtls_ecp_group *grp,
const mbedtls_ecp_point *P,
int format, size_t *olen,
unsigned char *buf, size_t buflen )
{
int ret = 0;
size_t plen;
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( P != NULL );
ECP_VALIDATE_RET( olen != NULL );
ECP_VALIDATE_RET( buf != NULL );
ECP_VALIDATE_RET( format == MBEDTLS_ECP_PF_UNCOMPRESSED ||
format == MBEDTLS_ECP_PF_COMPRESSED );
/*
* Common case: P == 0
*/
if( mbedtls_mpi_cmp_int( &P->Z, 0 ) == 0 )
{
if( buflen < 1 )
return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
buf[0] = 0x00;
*olen = 1;
return( 0 );
}
plen = mbedtls_mpi_size( &grp->P );
if( format == MBEDTLS_ECP_PF_UNCOMPRESSED )
{
*olen = 2 * plen + 1;
if( buflen < *olen )
return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
buf[0] = 0x04;
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &P->X, buf + 1, plen ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &P->Y, buf + 1 + plen, plen ) );
}
else if( format == MBEDTLS_ECP_PF_COMPRESSED )
{
*olen = plen + 1;
if( buflen < *olen )
return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
buf[0] = 0x02 + mbedtls_mpi_get_bit( &P->Y, 0 );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &P->X, buf + 1, plen ) );
}
cleanup:
return( ret );
}
/*
* Import a point from unsigned binary data (SEC1 2.3.4)
*/
int mbedtls_ecp_point_read_binary( const mbedtls_ecp_group *grp,
mbedtls_ecp_point *pt,
const unsigned char *buf, size_t ilen )
{
int ret;
size_t plen;
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( pt != NULL );
ECP_VALIDATE_RET( buf != NULL );
if( ilen < 1 )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
if( buf[0] == 0x00 )
{
if( ilen == 1 )
return( mbedtls_ecp_set_zero( pt ) );
else
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
}
plen = mbedtls_mpi_size( &grp->P );
if( buf[0] != 0x04 )
return( MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE );
if( ilen != 2 * plen + 1 )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &pt->X, buf + 1, plen ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &pt->Y, buf + 1 + plen, plen ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &pt->Z, 1 ) );
cleanup:
return( ret );
}
/*
* Import a point from a TLS ECPoint record (RFC 4492)
* struct {
* opaque point <1..2^8-1>;
* } ECPoint;
*/
int mbedtls_ecp_tls_read_point( const mbedtls_ecp_group *grp,
mbedtls_ecp_point *pt,
const unsigned char **buf, size_t buf_len )
{
unsigned char data_len;
const unsigned char *buf_start;
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( pt != NULL );
ECP_VALIDATE_RET( buf != NULL );
ECP_VALIDATE_RET( *buf != NULL );
/*
* We must have at least two bytes (1 for length, at least one for data)
*/
if( buf_len < 2 )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
data_len = *(*buf)++;
if( data_len < 1 || data_len > buf_len - 1 )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
/*
* Save buffer start for read_binary and update buf
*/
buf_start = *buf;
*buf += data_len;
return( mbedtls_ecp_point_read_binary( grp, pt, buf_start, data_len ) );
}
/*
* Export a point as a TLS ECPoint record (RFC 4492)
* struct {
* opaque point <1..2^8-1>;
* } ECPoint;
*/
int mbedtls_ecp_tls_write_point( const mbedtls_ecp_group *grp, const mbedtls_ecp_point *pt,
int format, size_t *olen,
unsigned char *buf, size_t blen )
{
int ret;
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( pt != NULL );
ECP_VALIDATE_RET( olen != NULL );
ECP_VALIDATE_RET( buf != NULL );
ECP_VALIDATE_RET( format == MBEDTLS_ECP_PF_UNCOMPRESSED ||
format == MBEDTLS_ECP_PF_COMPRESSED );
/*
* buffer length must be at least one, for our length byte
*/
if( blen < 1 )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
if( ( ret = mbedtls_ecp_point_write_binary( grp, pt, format,
olen, buf + 1, blen - 1) ) != 0 )
return( ret );
/*
* write length to the first byte and update total length
*/
buf[0] = (unsigned char) *olen;
++*olen;
return( 0 );
}
/*
* Set a group from an ECParameters record (RFC 4492)
*/
int mbedtls_ecp_tls_read_group( mbedtls_ecp_group *grp,
const unsigned char **buf, size_t len )
{
int ret;
mbedtls_ecp_group_id grp_id;
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( buf != NULL );
ECP_VALIDATE_RET( *buf != NULL );
if( ( ret = mbedtls_ecp_tls_read_group_id( &grp_id, buf, len ) ) != 0 )
return( ret );
return( mbedtls_ecp_group_load( grp, grp_id ) );
}
/*
* Read a group id from an ECParameters record (RFC 4492) and convert it to
* mbedtls_ecp_group_id.
*/
int mbedtls_ecp_tls_read_group_id( mbedtls_ecp_group_id *grp,
const unsigned char **buf, size_t len )
{
uint16_t tls_id;
const mbedtls_ecp_curve_info *curve_info;
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( buf != NULL );
ECP_VALIDATE_RET( *buf != NULL );
/*
* We expect at least three bytes (see below)
*/
if( len < 3 )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
/*
* First byte is curve_type; only named_curve is handled
*/
if( *(*buf)++ != MBEDTLS_ECP_TLS_NAMED_CURVE )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
/*
* Next two bytes are the namedcurve value
*/
tls_id = *(*buf)++;
tls_id <<= 8;
tls_id |= *(*buf)++;
if( ( curve_info = mbedtls_ecp_curve_info_from_tls_id( tls_id ) ) == NULL )
return( MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE );
*grp = curve_info->grp_id;
return( 0 );
}
/*
* Write the ECParameters record corresponding to a group (RFC 4492)
*/
int mbedtls_ecp_tls_write_group( const mbedtls_ecp_group *grp, size_t *olen,
unsigned char *buf, size_t blen )
{
const mbedtls_ecp_curve_info *curve_info;
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( buf != NULL );
ECP_VALIDATE_RET( olen != NULL );
if( ( curve_info = mbedtls_ecp_curve_info_from_grp_id( grp->id ) ) == NULL )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
/*
* We are going to write 3 bytes (see below)
*/
*olen = 3;
if( blen < *olen )
return( MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL );
/*
* First byte is curve_type, always named_curve
*/
*buf++ = MBEDTLS_ECP_TLS_NAMED_CURVE;
/*
* Next two bytes are the namedcurve value
*/
buf[0] = curve_info->tls_id >> 8;
buf[1] = curve_info->tls_id & 0xFF;
return( 0 );
}
/*
* Wrapper around fast quasi-modp functions, with fall-back to mbedtls_mpi_mod_mpi.
* See the documentation of struct mbedtls_ecp_group.
*
* This function is in the critial loop for mbedtls_ecp_mul, so pay attention to perf.
*/
static int ecp_modp( mbedtls_mpi *N, const mbedtls_ecp_group *grp )
{
int ret;
if( grp->modp == NULL )
return( mbedtls_mpi_mod_mpi( N, N, &grp->P ) );
/* N->s < 0 is a much faster test, which fails only if N is 0 */
if( ( N->s < 0 && mbedtls_mpi_cmp_int( N, 0 ) != 0 ) ||
mbedtls_mpi_bitlen( N ) > 2 * grp->pbits )
{
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
}
MBEDTLS_MPI_CHK( grp->modp( N ) );
/* N->s < 0 is a much faster test, which fails only if N is 0 */
while( N->s < 0 && mbedtls_mpi_cmp_int( N, 0 ) != 0 )
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( N, N, &grp->P ) );
while( mbedtls_mpi_cmp_mpi( N, &grp->P ) >= 0 )
/* we known P, N and the result are positive */
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( N, N, &grp->P ) );
cleanup:
return( ret );
}
/*
* Fast mod-p functions expect their argument to be in the 0..p^2 range.
*
* In order to guarantee that, we need to ensure that operands of
* mbedtls_mpi_mul_mpi are in the 0..p range. So, after each operation we will
* bring the result back to this range.
*
* The following macros are shortcuts for doing that.
*/
/*
* Reduce a mbedtls_mpi mod p in-place, general case, to use after mbedtls_mpi_mul_mpi
*/
#if defined(MBEDTLS_SELF_TEST)
#define INC_MUL_COUNT mul_count++;
#else
#define INC_MUL_COUNT
#endif
#define MOD_MUL( N ) do { MBEDTLS_MPI_CHK( ecp_modp( &N, grp ) ); INC_MUL_COUNT } \
while( 0 )
/*
* Reduce a mbedtls_mpi mod p in-place, to use after mbedtls_mpi_sub_mpi
* N->s < 0 is a very fast test, which fails only if N is 0
*/
#define MOD_SUB( N ) \
while( N.s < 0 && mbedtls_mpi_cmp_int( &N, 0 ) != 0 ) \
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &N, &N, &grp->P ) )
/*
* Reduce a mbedtls_mpi mod p in-place, to use after mbedtls_mpi_add_mpi and mbedtls_mpi_mul_int.
* We known P, N and the result are positive, so sub_abs is correct, and
* a bit faster.
*/
#define MOD_ADD( N ) \
while( mbedtls_mpi_cmp_mpi( &N, &grp->P ) >= 0 ) \
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( &N, &N, &grp->P ) )
#if defined(ECP_SHORTWEIERSTRASS)
/*
* For curves in short Weierstrass form, we do all the internal operations in
* Jacobian coordinates.
*
* For multiplication, we'll use a comb method with coutermeasueres against
* SPA, hence timing attacks.
*/
/*
* Normalize jacobian coordinates so that Z == 0 || Z == 1 (GECC 3.2.1)
* Cost: 1N := 1I + 3M + 1S
*/
static int ecp_normalize_jac( const mbedtls_ecp_group *grp, mbedtls_ecp_point *pt )
{
int ret;
mbedtls_mpi Zi, ZZi;
if( mbedtls_mpi_cmp_int( &pt->Z, 0 ) == 0 )
return( 0 );
#if defined(MBEDTLS_ECP_NORMALIZE_JAC_ALT)
if( mbedtls_internal_ecp_grp_capable( grp ) )
return( mbedtls_internal_ecp_normalize_jac( grp, pt ) );
#endif /* MBEDTLS_ECP_NORMALIZE_JAC_ALT */
mbedtls_mpi_init( &Zi ); mbedtls_mpi_init( &ZZi );
/*
* X = X / Z^2 mod p
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &Zi, &pt->Z, &grp->P ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ZZi, &Zi, &Zi ) ); MOD_MUL( ZZi );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &pt->X, &pt->X, &ZZi ) ); MOD_MUL( pt->X );
/*
* Y = Y / Z^3 mod p
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &pt->Y, &pt->Y, &ZZi ) ); MOD_MUL( pt->Y );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &pt->Y, &pt->Y, &Zi ) ); MOD_MUL( pt->Y );
/*
* Z = 1
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &pt->Z, 1 ) );
cleanup:
mbedtls_mpi_free( &Zi ); mbedtls_mpi_free( &ZZi );
return( ret );
}
/*
* Normalize jacobian coordinates of an array of (pointers to) points,
* using Montgomery's trick to perform only one inversion mod P.
* (See for example Cohen's "A Course in Computational Algebraic Number
* Theory", Algorithm 10.3.4.)
*
* Warning: fails (returning an error) if one of the points is zero!
* This should never happen, see choice of w in ecp_mul_comb().
*
* Cost: 1N(t) := 1I + (6t - 3)M + 1S
*/
static int ecp_normalize_jac_many( const mbedtls_ecp_group *grp,
mbedtls_ecp_point *T[], size_t T_size )
{
int ret;
size_t i;
mbedtls_mpi *c, u, Zi, ZZi;
if( T_size < 2 )
return( ecp_normalize_jac( grp, *T ) );
#if defined(MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT)
if( mbedtls_internal_ecp_grp_capable( grp ) )
return( mbedtls_internal_ecp_normalize_jac_many( grp, T, T_size ) );
#endif
if( ( c = mbedtls_calloc( T_size, sizeof( mbedtls_mpi ) ) ) == NULL )
return( MBEDTLS_ERR_ECP_ALLOC_FAILED );
for( i = 0; i < T_size; i++ )
mbedtls_mpi_init( &c[i] );
mbedtls_mpi_init( &u ); mbedtls_mpi_init( &Zi ); mbedtls_mpi_init( &ZZi );
/*
* c[i] = Z_0 * ... * Z_i
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &c[0], &T[0]->Z ) );
for( i = 1; i < T_size; i++ )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &c[i], &c[i-1], &T[i]->Z ) );
MOD_MUL( c[i] );
}
/*
* u = 1 / (Z_0 * ... * Z_n) mod P
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &u, &c[T_size-1], &grp->P ) );
for( i = T_size - 1; ; i-- )
{
/*
* Zi = 1 / Z_i mod p
* u = 1 / (Z_0 * ... * Z_i) mod P
*/
if( i == 0 ) {
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &Zi, &u ) );
}
else
{
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &Zi, &u, &c[i-1] ) ); MOD_MUL( Zi );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &u, &u, &T[i]->Z ) ); MOD_MUL( u );
}
/*
* proceed as in normalize()
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ZZi, &Zi, &Zi ) ); MOD_MUL( ZZi );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T[i]->X, &T[i]->X, &ZZi ) ); MOD_MUL( T[i]->X );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T[i]->Y, &T[i]->Y, &ZZi ) ); MOD_MUL( T[i]->Y );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T[i]->Y, &T[i]->Y, &Zi ) ); MOD_MUL( T[i]->Y );
/*
* Post-precessing: reclaim some memory by shrinking coordinates
* - not storing Z (always 1)
* - shrinking other coordinates, but still keeping the same number of
* limbs as P, as otherwise it will too likely be regrown too fast.
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_shrink( &T[i]->X, grp->P.n ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_shrink( &T[i]->Y, grp->P.n ) );
mbedtls_mpi_free( &T[i]->Z );
if( i == 0 )
break;
}
cleanup:
mbedtls_mpi_free( &u ); mbedtls_mpi_free( &Zi ); mbedtls_mpi_free( &ZZi );
for( i = 0; i < T_size; i++ )
mbedtls_mpi_free( &c[i] );
mbedtls_free( c );
return( ret );
}
/*
* Conditional point inversion: Q -> -Q = (Q.X, -Q.Y, Q.Z) without leak.
* "inv" must be 0 (don't invert) or 1 (invert) or the result will be invalid
*/
static int ecp_safe_invert_jac( const mbedtls_ecp_group *grp,
mbedtls_ecp_point *Q,
unsigned char inv )
{
int ret;
unsigned char nonzero;
mbedtls_mpi mQY;
mbedtls_mpi_init( &mQY );
/* Use the fact that -Q.Y mod P = P - Q.Y unless Q.Y == 0 */
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &mQY, &grp->P, &Q->Y ) );
nonzero = mbedtls_mpi_cmp_int( &Q->Y, 0 ) != 0;
MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_assign( &Q->Y, &mQY, inv & nonzero ) );
cleanup:
mbedtls_mpi_free( &mQY );
return( ret );
}
/*
* Point doubling R = 2 P, Jacobian coordinates
*
* Based on http://www.hyperelliptic.org/EFD/g1p/auto-shortw-jacobian.html#doubling-dbl-1998-cmo-2 .
*
* We follow the variable naming fairly closely. The formula variations that trade a MUL for a SQR
* (plus a few ADDs) aren't useful as our bignum implementation doesn't distinguish squaring.
*
* Standard optimizations are applied when curve parameter A is one of { 0, -3 }.
*
* Cost: 1D := 3M + 4S (A == 0)
* 4M + 4S (A == -3)
* 3M + 6S + 1a otherwise
*/
static int ecp_double_jac( const mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
const mbedtls_ecp_point *P )
{
int ret;
mbedtls_mpi M, S, T, U;
#if defined(MBEDTLS_SELF_TEST)
dbl_count++;
#endif
#if defined(MBEDTLS_ECP_DOUBLE_JAC_ALT)
if( mbedtls_internal_ecp_grp_capable( grp ) )
return( mbedtls_internal_ecp_double_jac( grp, R, P ) );
#endif /* MBEDTLS_ECP_DOUBLE_JAC_ALT */
mbedtls_mpi_init( &M ); mbedtls_mpi_init( &S ); mbedtls_mpi_init( &T ); mbedtls_mpi_init( &U );
/* Special case for A = -3 */
if( grp->A.p == NULL )
{
/* M = 3(X + Z^2)(X - Z^2) */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S, &P->Z, &P->Z ) ); MOD_MUL( S );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &T, &P->X, &S ) ); MOD_ADD( T );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &U, &P->X, &S ) ); MOD_SUB( U );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S, &T, &U ) ); MOD_MUL( S );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &M, &S, 3 ) ); MOD_ADD( M );
}
else
{
/* M = 3.X^2 */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S, &P->X, &P->X ) ); MOD_MUL( S );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &M, &S, 3 ) ); MOD_ADD( M );
/* Optimize away for "koblitz" curves with A = 0 */
if( mbedtls_mpi_cmp_int( &grp->A, 0 ) != 0 )
{
/* M += A.Z^4 */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S, &P->Z, &P->Z ) ); MOD_MUL( S );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &S, &S ) ); MOD_MUL( T );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S, &T, &grp->A ) ); MOD_MUL( S );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &M, &M, &S ) ); MOD_ADD( M );
}
}
/* S = 4.X.Y^2 */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &P->Y, &P->Y ) ); MOD_MUL( T );
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &T, 1 ) ); MOD_ADD( T );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S, &P->X, &T ) ); MOD_MUL( S );
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &S, 1 ) ); MOD_ADD( S );
/* U = 8.Y^4 */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &U, &T, &T ) ); MOD_MUL( U );
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &U, 1 ) ); MOD_ADD( U );
/* T = M^2 - 2.S */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &M, &M ) ); MOD_MUL( T );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &T, &T, &S ) ); MOD_SUB( T );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &T, &T, &S ) ); MOD_SUB( T );
/* S = M(S - T) - U */
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &S, &S, &T ) ); MOD_SUB( S );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S, &S, &M ) ); MOD_MUL( S );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &S, &S, &U ) ); MOD_SUB( S );
/* U = 2.Y.Z */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &U, &P->Y, &P->Z ) ); MOD_MUL( U );
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &U, 1 ) ); MOD_ADD( U );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &R->X, &T ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &R->Y, &S ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &R->Z, &U ) );
cleanup:
mbedtls_mpi_free( &M ); mbedtls_mpi_free( &S ); mbedtls_mpi_free( &T ); mbedtls_mpi_free( &U );
return( ret );
}
/*
* Addition: R = P + Q, mixed affine-Jacobian coordinates (GECC 3.22)
*
* The coordinates of Q must be normalized (= affine),
* but those of P don't need to. R is not normalized.
*
* Special cases: (1) P or Q is zero, (2) R is zero, (3) P == Q.
* None of these cases can happen as intermediate step in ecp_mul_comb():
* - at each step, P, Q and R are multiples of the base point, the factor
* being less than its order, so none of them is zero;
* - Q is an odd multiple of the base point, P an even multiple,
* due to the choice of precomputed points in the modified comb method.
* So branches for these cases do not leak secret information.
*
* We accept Q->Z being unset (saving memory in tables) as meaning 1.
*
* Cost: 1A := 8M + 3S
*/
static int ecp_add_mixed( const mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
const mbedtls_ecp_point *P, const mbedtls_ecp_point *Q )
{
int ret;
mbedtls_mpi T1, T2, T3, T4, X, Y, Z;
#if defined(MBEDTLS_SELF_TEST)
add_count++;
#endif
#if defined(MBEDTLS_ECP_ADD_MIXED_ALT)
if( mbedtls_internal_ecp_grp_capable( grp ) )
return( mbedtls_internal_ecp_add_mixed( grp, R, P, Q ) );
#endif /* MBEDTLS_ECP_ADD_MIXED_ALT */
/*
* Trivial cases: P == 0 or Q == 0 (case 1)
*/
if( mbedtls_mpi_cmp_int( &P->Z, 0 ) == 0 )
return( mbedtls_ecp_copy( R, Q ) );
if( Q->Z.p != NULL && mbedtls_mpi_cmp_int( &Q->Z, 0 ) == 0 )
return( mbedtls_ecp_copy( R, P ) );
/*
* Make sure Q coordinates are normalized
*/
if( Q->Z.p != NULL && mbedtls_mpi_cmp_int( &Q->Z, 1 ) != 0 )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
mbedtls_mpi_init( &T1 ); mbedtls_mpi_init( &T2 ); mbedtls_mpi_init( &T3 ); mbedtls_mpi_init( &T4 );
mbedtls_mpi_init( &X ); mbedtls_mpi_init( &Y ); mbedtls_mpi_init( &Z );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T1, &P->Z, &P->Z ) ); MOD_MUL( T1 );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T2, &T1, &P->Z ) ); MOD_MUL( T2 );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T1, &T1, &Q->X ) ); MOD_MUL( T1 );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T2, &T2, &Q->Y ) ); MOD_MUL( T2 );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &T1, &T1, &P->X ) ); MOD_SUB( T1 );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &T2, &T2, &P->Y ) ); MOD_SUB( T2 );
/* Special cases (2) and (3) */
if( mbedtls_mpi_cmp_int( &T1, 0 ) == 0 )
{
if( mbedtls_mpi_cmp_int( &T2, 0 ) == 0 )
{
ret = ecp_double_jac( grp, R, P );
goto cleanup;
}
else
{
ret = mbedtls_ecp_set_zero( R );
goto cleanup;
}
}
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &Z, &P->Z, &T1 ) ); MOD_MUL( Z );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T3, &T1, &T1 ) ); MOD_MUL( T3 );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T4, &T3, &T1 ) ); MOD_MUL( T4 );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T3, &T3, &P->X ) ); MOD_MUL( T3 );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &T1, &T3, 2 ) ); MOD_ADD( T1 );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &X, &T2, &T2 ) ); MOD_MUL( X );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &X, &X, &T1 ) ); MOD_SUB( X );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &X, &X, &T4 ) ); MOD_SUB( X );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &T3, &T3, &X ) ); MOD_SUB( T3 );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T3, &T3, &T2 ) ); MOD_MUL( T3 );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T4, &T4, &P->Y ) ); MOD_MUL( T4 );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &Y, &T3, &T4 ) ); MOD_SUB( Y );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &R->X, &X ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &R->Y, &Y ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &R->Z, &Z ) );
cleanup:
mbedtls_mpi_free( &T1 ); mbedtls_mpi_free( &T2 ); mbedtls_mpi_free( &T3 ); mbedtls_mpi_free( &T4 );
mbedtls_mpi_free( &X ); mbedtls_mpi_free( &Y ); mbedtls_mpi_free( &Z );
return( ret );
}
/*
* Randomize jacobian coordinates:
* (X, Y, Z) -> (l^2 X, l^3 Y, l Z) for random l
* This is sort of the reverse operation of ecp_normalize_jac().
*
* This countermeasure was first suggested in [2].
*/
static int ecp_randomize_jac( const mbedtls_ecp_group *grp, mbedtls_ecp_point *pt,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
int ret;
mbedtls_mpi l, ll;
size_t p_size;
int count = 0;
#if defined(MBEDTLS_ECP_RANDOMIZE_JAC_ALT)
if( mbedtls_internal_ecp_grp_capable( grp ) )
return( mbedtls_internal_ecp_randomize_jac( grp, pt, f_rng, p_rng ) );
#endif /* MBEDTLS_ECP_RANDOMIZE_JAC_ALT */
p_size = ( grp->pbits + 7 ) / 8;
mbedtls_mpi_init( &l ); mbedtls_mpi_init( &ll );
/* Generate l such that 1 < l < p */
do
{
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &l, p_size, f_rng, p_rng ) );
while( mbedtls_mpi_cmp_mpi( &l, &grp->P ) >= 0 )
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &l, 1 ) );
if( count++ > 10 )
return( MBEDTLS_ERR_ECP_RANDOM_FAILED );
}
while( mbedtls_mpi_cmp_int( &l, 1 ) <= 0 );
/* Z = l * Z */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &pt->Z, &pt->Z, &l ) ); MOD_MUL( pt->Z );
/* X = l^2 * X */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ll, &l, &l ) ); MOD_MUL( ll );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &pt->X, &pt->X, &ll ) ); MOD_MUL( pt->X );
/* Y = l^3 * Y */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ll, &ll, &l ) ); MOD_MUL( ll );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &pt->Y, &pt->Y, &ll ) ); MOD_MUL( pt->Y );
cleanup:
mbedtls_mpi_free( &l ); mbedtls_mpi_free( &ll );
return( ret );
}
/*
* Check and define parameters used by the comb method (see below for details)
*/
#if MBEDTLS_ECP_WINDOW_SIZE < 2 || MBEDTLS_ECP_WINDOW_SIZE > 7
#error "MBEDTLS_ECP_WINDOW_SIZE out of bounds"
#endif
/* d = ceil( n / w ) */
#define COMB_MAX_D ( MBEDTLS_ECP_MAX_BITS + 1 ) / 2
/* number of precomputed points */
#define COMB_MAX_PRE ( 1 << ( MBEDTLS_ECP_WINDOW_SIZE - 1 ) )
/*
* Compute the representation of m that will be used with our comb method.
*
* The basic comb method is described in GECC 3.44 for example. We use a
* modified version that provides resistance to SPA by avoiding zero
* digits in the representation as in [3]. We modify the method further by
* requiring that all K_i be odd, which has the small cost that our
* representation uses one more K_i, due to carries, but saves on the size of
* the precomputed table.
*
* Summary of the comb method and its modifications:
*
* - The goal is to compute m*P for some w*d-bit integer m.
*
* - The basic comb method splits m into the w-bit integers
* x[0] .. x[d-1] where x[i] consists of the bits in m whose
* index has residue i modulo d, and computes m * P as
* S[x[0]] + 2 * S[x[1]] + .. + 2^(d-1) S[x[d-1]], where
* S[i_{w-1} .. i_0] := i_{w-1} 2^{(w-1)d} P + ... + i_1 2^d P + i_0 P.
*
* - If it happens that, say, x[i+1]=0 (=> S[x[i+1]]=0), one can replace the sum by
* .. + 2^{i-1} S[x[i-1]] - 2^i S[x[i]] + 2^{i+1} S[x[i]] + 2^{i+2} S[x[i+2]] ..,
* thereby successively converting it into a form where all summands
* are nonzero, at the cost of negative summands. This is the basic idea of [3].
*
* - More generally, even if x[i+1] != 0, we can first transform the sum as
* .. - 2^i S[x[i]] + 2^{i+1} ( S[x[i]] + S[x[i+1]] ) + 2^{i+2} S[x[i+2]] ..,
* and then replace S[x[i]] + S[x[i+1]] = S[x[i] ^ x[i+1]] + 2 S[x[i] & x[i+1]].
* Performing and iterating this procedure for those x[i] that are even
* (keeping track of carry), we can transform the original sum into one of the form
* S[x'[0]] +- 2 S[x'[1]] +- .. +- 2^{d-1} S[x'[d-1]] + 2^d S[x'[d]]
* with all x'[i] odd. It is therefore only necessary to know S at odd indices,
* which is why we are only computing half of it in the first place in
* ecp_precompute_comb and accessing it with index abs(i) / 2 in ecp_select_comb.
*
* - For the sake of compactness, only the seven low-order bits of x[i]
* are used to represent its absolute value (K_i in the paper), and the msb
* of x[i] encodes the sign (s_i in the paper): it is set if and only if
* if s_i == -1;
*
* Calling conventions:
* - x is an array of size d + 1
* - w is the size, ie number of teeth, of the comb, and must be between
* 2 and 7 (in practice, between 2 and MBEDTLS_ECP_WINDOW_SIZE)
* - m is the MPI, expected to be odd and such that bitlength(m) <= w * d
* (the result will be incorrect if these assumptions are not satisfied)
*/
static void ecp_comb_recode_core( unsigned char x[], size_t d,
unsigned char w, const mbedtls_mpi *m )
{
size_t i, j;
unsigned char c, cc, adjust;
memset( x, 0, d+1 );
/* First get the classical comb values (except for x_d = 0) */
for( i = 0; i < d; i++ )
for( j = 0; j < w; j++ )
x[i] |= mbedtls_mpi_get_bit( m, i + d * j ) << j;
/* Now make sure x_1 .. x_d are odd */
c = 0;
for( i = 1; i <= d; i++ )
{
/* Add carry and update it */
cc = x[i] & c;
x[i] = x[i] ^ c;
c = cc;
/* Adjust if needed, avoiding branches */
adjust = 1 - ( x[i] & 0x01 );
c |= x[i] & ( x[i-1] * adjust );
x[i] = x[i] ^ ( x[i-1] * adjust );
x[i-1] |= adjust << 7;
}
}
/*
* Precompute points for the adapted comb method
*
* Assumption: T must be able to hold 2^{w - 1} elements.
*
* Operation: If i = i_{w-1} ... i_1 is the binary representation of i,
* sets T[i] = i_{w-1} 2^{(w-1)d} P + ... + i_1 2^d P + P.
*
* Cost: d(w-1) D + (2^{w-1} - 1) A + 1 N(w-1) + 1 N(2^{w-1} - 1)
*
* Note: Even comb values (those where P would be omitted from the
* sum defining T[i] above) are not needed in our adaption
* the comb method. See ecp_comb_recode_core().
*
* This function currently works in four steps:
* (1) [dbl] Computation of intermediate T[i] for 2-power values of i
* (2) [norm_dbl] Normalization of coordinates of these T[i]
* (3) [add] Computation of all T[i]
* (4) [norm_add] Normalization of all T[i]
*
* Step 1 can be interrupted but not the others; together with the final
* coordinate normalization they are the largest steps done at once, depending
* on the window size. Here are operation counts for P-256:
*
* step (2) (3) (4)
* w = 5 142 165 208
* w = 4 136 77 160
* w = 3 130 33 136
* w = 2 124 11 124
*
* So if ECC operations are blocking for too long even with a low max_ops
* value, it's useful to set MBEDTLS_ECP_WINDOW_SIZE to a lower value in order
* to minimize maximum blocking time.
*/
static int ecp_precompute_comb( const mbedtls_ecp_group *grp,
mbedtls_ecp_point T[], const mbedtls_ecp_point *P,
unsigned char w, size_t d,
mbedtls_ecp_restart_ctx *rs_ctx )
{
int ret;
unsigned char i;
size_t j = 0;
const unsigned char T_size = 1U << ( w - 1 );
mbedtls_ecp_point *cur, *TT[COMB_MAX_PRE - 1];
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->rsm != NULL )
{
if( rs_ctx->rsm->state == ecp_rsm_pre_dbl )
goto dbl;
if( rs_ctx->rsm->state == ecp_rsm_pre_norm_dbl )
goto norm_dbl;
if( rs_ctx->rsm->state == ecp_rsm_pre_add )
goto add;
if( rs_ctx->rsm->state == ecp_rsm_pre_norm_add )
goto norm_add;
}
#else
(void) rs_ctx;
#endif
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->rsm != NULL )
{
rs_ctx->rsm->state = ecp_rsm_pre_dbl;
/* initial state for the loop */
rs_ctx->rsm->i = 0;
}
dbl:
#endif
/*
* Set T[0] = P and
* T[2^{l-1}] = 2^{dl} P for l = 1 .. w-1 (this is not the final value)
*/
MBEDTLS_MPI_CHK( mbedtls_ecp_copy( &T[0], P ) );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->rsm != NULL && rs_ctx->rsm->i != 0 )
j = rs_ctx->rsm->i;
else
#endif
j = 0;
for( ; j < d * ( w - 1 ); j++ )
{
MBEDTLS_ECP_BUDGET( MBEDTLS_ECP_OPS_DBL );
i = 1U << ( j / d );
cur = T + i;
if( j % d == 0 )
MBEDTLS_MPI_CHK( mbedtls_ecp_copy( cur, T + ( i >> 1 ) ) );
MBEDTLS_MPI_CHK( ecp_double_jac( grp, cur, cur ) );
}
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->rsm != NULL )
rs_ctx->rsm->state = ecp_rsm_pre_norm_dbl;
norm_dbl:
#endif
/*
* Normalize current elements in T. As T has holes,
* use an auxiliary array of pointers to elements in T.
*/
j = 0;
for( i = 1; i < T_size; i <<= 1 )
TT[j++] = T + i;
MBEDTLS_ECP_BUDGET( MBEDTLS_ECP_OPS_INV + 6 * j - 2 );
MBEDTLS_MPI_CHK( ecp_normalize_jac_many( grp, TT, j ) );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->rsm != NULL )
rs_ctx->rsm->state = ecp_rsm_pre_add;
add:
#endif
/*
* Compute the remaining ones using the minimal number of additions
* Be careful to update T[2^l] only after using it!
*/
MBEDTLS_ECP_BUDGET( ( T_size - 1 ) * MBEDTLS_ECP_OPS_ADD );
for( i = 1; i < T_size; i <<= 1 )
{
j = i;
while( j-- )
MBEDTLS_MPI_CHK( ecp_add_mixed( grp, &T[i + j], &T[j], &T[i] ) );
}
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->rsm != NULL )
rs_ctx->rsm->state = ecp_rsm_pre_norm_add;
norm_add:
#endif
/*
* Normalize final elements in T. Even though there are no holes now, we
* still need the auxiliary array for homogeneity with the previous
* call. Also, skip T[0] which is already normalised, being a copy of P.
*/
for( j = 0; j + 1 < T_size; j++ )
TT[j] = T + j + 1;
MBEDTLS_ECP_BUDGET( MBEDTLS_ECP_OPS_INV + 6 * j - 2 );
MBEDTLS_MPI_CHK( ecp_normalize_jac_many( grp, TT, j ) );
cleanup:
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->rsm != NULL &&
ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
{
if( rs_ctx->rsm->state == ecp_rsm_pre_dbl )
rs_ctx->rsm->i = j;
}
#endif
return( ret );
}
/*
* Select precomputed point: R = sign(i) * T[ abs(i) / 2 ]
*
* See ecp_comb_recode_core() for background
*/
static int ecp_select_comb( const mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
const mbedtls_ecp_point T[], unsigned char T_size,
unsigned char i )
{
int ret;
unsigned char ii, j;
/* Ignore the "sign" bit and scale down */
ii = ( i & 0x7Fu ) >> 1;
/* Read the whole table to thwart cache-based timing attacks */
for( j = 0; j < T_size; j++ )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_assign( &R->X, &T[j].X, j == ii ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_assign( &R->Y, &T[j].Y, j == ii ) );
}
/* Safely invert result if i is "negative" */
MBEDTLS_MPI_CHK( ecp_safe_invert_jac( grp, R, i >> 7 ) );
cleanup:
return( ret );
}
/*
* Core multiplication algorithm for the (modified) comb method.
* This part is actually common with the basic comb method (GECC 3.44)
*
* Cost: d A + d D + 1 R
*/
static int ecp_mul_comb_core( const mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
const mbedtls_ecp_point T[], unsigned char T_size,
const unsigned char x[], size_t d,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
mbedtls_ecp_restart_ctx *rs_ctx )
{
int ret;
mbedtls_ecp_point Txi;
size_t i;
mbedtls_ecp_point_init( &Txi );
#if !defined(MBEDTLS_ECP_RESTARTABLE)
(void) rs_ctx;
#endif
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->rsm != NULL &&
rs_ctx->rsm->state != ecp_rsm_comb_core )
{
rs_ctx->rsm->i = 0;
rs_ctx->rsm->state = ecp_rsm_comb_core;
}
/* new 'if' instead of nested for the sake of the 'else' branch */
if( rs_ctx != NULL && rs_ctx->rsm != NULL && rs_ctx->rsm->i != 0 )
{
/* restore current index (R already pointing to rs_ctx->rsm->R) */
i = rs_ctx->rsm->i;
}
else
#endif
{
/* Start with a non-zero point and randomize its coordinates */
i = d;
MBEDTLS_MPI_CHK( ecp_select_comb( grp, R, T, T_size, x[i] ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &R->Z, 1 ) );
if( f_rng != 0 )
MBEDTLS_MPI_CHK( ecp_randomize_jac( grp, R, f_rng, p_rng ) );
}
while( i != 0 )
{
MBEDTLS_ECP_BUDGET( MBEDTLS_ECP_OPS_DBL + MBEDTLS_ECP_OPS_ADD );
--i;
MBEDTLS_MPI_CHK( ecp_double_jac( grp, R, R ) );
MBEDTLS_MPI_CHK( ecp_select_comb( grp, &Txi, T, T_size, x[i] ) );
MBEDTLS_MPI_CHK( ecp_add_mixed( grp, R, R, &Txi ) );
}
cleanup:
mbedtls_ecp_point_free( &Txi );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->rsm != NULL &&
ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
{
rs_ctx->rsm->i = i;
/* no need to save R, already pointing to rs_ctx->rsm->R */
}
#endif
return( ret );
}
/*
* Recode the scalar to get constant-time comb multiplication
*
* As the actual scalar recoding needs an odd scalar as a starting point,
* this wrapper ensures that by replacing m by N - m if necessary, and
* informs the caller that the result of multiplication will be negated.
*
* This works because we only support large prime order for Short Weierstrass
* curves, so N is always odd hence either m or N - m is.
*
* See ecp_comb_recode_core() for background.
*/
static int ecp_comb_recode_scalar( const mbedtls_ecp_group *grp,
const mbedtls_mpi *m,
unsigned char k[COMB_MAX_D + 1],
size_t d,
unsigned char w,
unsigned char *parity_trick )
{
int ret;
mbedtls_mpi M, mm;
mbedtls_mpi_init( &M );
mbedtls_mpi_init( &mm );
/* N is always odd (see above), just make extra sure */
if( mbedtls_mpi_get_bit( &grp->N, 0 ) != 1 )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
/* do we need the parity trick? */
*parity_trick = ( mbedtls_mpi_get_bit( m, 0 ) == 0 );
/* execute parity fix in constant time */
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &M, m ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &mm, &grp->N, m ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_assign( &M, &mm, *parity_trick ) );
/* actual scalar recoding */
ecp_comb_recode_core( k, d, w, &M );
cleanup:
mbedtls_mpi_free( &mm );
mbedtls_mpi_free( &M );
return( ret );
}
/*
* Perform comb multiplication (for short Weierstrass curves)
* once the auxiliary table has been pre-computed.
*
* Scalar recoding may use a parity trick that makes us compute -m * P,
* if that is the case we'll need to recover m * P at the end.
*/
static int ecp_mul_comb_after_precomp( const mbedtls_ecp_group *grp,
mbedtls_ecp_point *R,
const mbedtls_mpi *m,
const mbedtls_ecp_point *T,
unsigned char T_size,
unsigned char w,
size_t d,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
mbedtls_ecp_restart_ctx *rs_ctx )
{
int ret;
unsigned char parity_trick;
unsigned char k[COMB_MAX_D + 1];
mbedtls_ecp_point *RR = R;
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->rsm != NULL )
{
RR = &rs_ctx->rsm->R;
if( rs_ctx->rsm->state == ecp_rsm_final_norm )
goto final_norm;
}
#endif
MBEDTLS_MPI_CHK( ecp_comb_recode_scalar( grp, m, k, d, w,
&parity_trick ) );
MBEDTLS_MPI_CHK( ecp_mul_comb_core( grp, RR, T, T_size, k, d,
f_rng, p_rng, rs_ctx ) );
MBEDTLS_MPI_CHK( ecp_safe_invert_jac( grp, RR, parity_trick ) );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->rsm != NULL )
rs_ctx->rsm->state = ecp_rsm_final_norm;
final_norm:
#endif
MBEDTLS_ECP_BUDGET( MBEDTLS_ECP_OPS_INV );
MBEDTLS_MPI_CHK( ecp_normalize_jac( grp, RR ) );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->rsm != NULL )
MBEDTLS_MPI_CHK( mbedtls_ecp_copy( R, RR ) );
#endif
cleanup:
return( ret );
}
/*
* Pick window size based on curve size and whether we optimize for base point
*/
static unsigned char ecp_pick_window_size( const mbedtls_ecp_group *grp,
unsigned char p_eq_g )
{
unsigned char w;
/*
* Minimize the number of multiplications, that is minimize
* 10 * d * w + 18 * 2^(w-1) + 11 * d + 7 * w, with d = ceil( nbits / w )
* (see costs of the various parts, with 1S = 1M)
*/
w = grp->nbits >= 384 ? 5 : 4;
/*
* If P == G, pre-compute a bit more, since this may be re-used later.
* Just adding one avoids upping the cost of the first mul too much,
* and the memory cost too.
*/
if( p_eq_g )
w++;
/*
* Make sure w is within bounds.
* (The last test is useful only for very small curves in the test suite.)
*/
if( w > MBEDTLS_ECP_WINDOW_SIZE )
w = MBEDTLS_ECP_WINDOW_SIZE;
if( w >= grp->nbits )
w = 2;
return( w );
}
/*
* Multiplication using the comb method - for curves in short Weierstrass form
*
* This function is mainly responsible for administrative work:
* - managing the restart context if enabled
* - managing the table of precomputed points (passed between the below two
* functions): allocation, computation, ownership tranfer, freeing.
*
* It delegates the actual arithmetic work to:
* ecp_precompute_comb() and ecp_mul_comb_with_precomp()
*
* See comments on ecp_comb_recode_core() regarding the computation strategy.
*/
static int ecp_mul_comb( mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
const mbedtls_mpi *m, const mbedtls_ecp_point *P,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
mbedtls_ecp_restart_ctx *rs_ctx )
{
int ret;
unsigned char w, p_eq_g, i;
size_t d;
unsigned char T_size, T_ok;
mbedtls_ecp_point *T;
ECP_RS_ENTER( rsm );
/* Is P the base point ? */
#if MBEDTLS_ECP_FIXED_POINT_OPTIM == 1
p_eq_g = ( mbedtls_mpi_cmp_mpi( &P->Y, &grp->G.Y ) == 0 &&
mbedtls_mpi_cmp_mpi( &P->X, &grp->G.X ) == 0 );
#else
p_eq_g = 0;
#endif
/* Pick window size and deduce related sizes */
w = ecp_pick_window_size( grp, p_eq_g );
T_size = 1U << ( w - 1 );
d = ( grp->nbits + w - 1 ) / w;
/* Pre-computed table: do we have it already for the base point? */
if( p_eq_g && grp->T != NULL )
{
/* second pointer to the same table, will be deleted on exit */
T = grp->T;
T_ok = 1;
}
else
#if defined(MBEDTLS_ECP_RESTARTABLE)
/* Pre-computed table: do we have one in progress? complete? */
if( rs_ctx != NULL && rs_ctx->rsm != NULL && rs_ctx->rsm->T != NULL )
{
/* transfer ownership of T from rsm to local function */
T = rs_ctx->rsm->T;
rs_ctx->rsm->T = NULL;
rs_ctx->rsm->T_size = 0;
/* This effectively jumps to the call to mul_comb_after_precomp() */
T_ok = rs_ctx->rsm->state >= ecp_rsm_comb_core;
}
else
#endif
/* Allocate table if we didn't have any */
{
T = mbedtls_calloc( T_size, sizeof( mbedtls_ecp_point ) );
if( T == NULL )
{
ret = MBEDTLS_ERR_ECP_ALLOC_FAILED;
goto cleanup;
}
for( i = 0; i < T_size; i++ )
mbedtls_ecp_point_init( &T[i] );
T_ok = 0;
}
/* Compute table (or finish computing it) if not done already */
if( !T_ok )
{
MBEDTLS_MPI_CHK( ecp_precompute_comb( grp, T, P, w, d, rs_ctx ) );
if( p_eq_g )
{
/* almost transfer ownership of T to the group, but keep a copy of
* the pointer to use for calling the next function more easily */
grp->T = T;
grp->T_size = T_size;
}
}
/* Actual comb multiplication using precomputed points */
MBEDTLS_MPI_CHK( ecp_mul_comb_after_precomp( grp, R, m,
T, T_size, w, d,
f_rng, p_rng, rs_ctx ) );
cleanup:
/* does T belong to the group? */
if( T == grp->T )
T = NULL;
/* does T belong to the restart context? */
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->rsm != NULL && ret == MBEDTLS_ERR_ECP_IN_PROGRESS && T != NULL )
{
/* transfer ownership of T from local function to rsm */
rs_ctx->rsm->T_size = T_size;
rs_ctx->rsm->T = T;
T = NULL;
}
#endif
/* did T belong to us? then let's destroy it! */
if( T != NULL )
{
for( i = 0; i < T_size; i++ )
mbedtls_ecp_point_free( &T[i] );
mbedtls_free( T );
}
/* don't free R while in progress in case R == P */
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( ret != MBEDTLS_ERR_ECP_IN_PROGRESS )
#endif
/* prevent caller from using invalid value */
if( ret != 0 )
mbedtls_ecp_point_free( R );
ECP_RS_LEAVE( rsm );
return( ret );
}
#endif /* ECP_SHORTWEIERSTRASS */
#if defined(ECP_MONTGOMERY)
/*
* For Montgomery curves, we do all the internal arithmetic in projective
* coordinates. Import/export of points uses only the x coordinates, which is
* internaly represented as X / Z.
*
* For scalar multiplication, we'll use a Montgomery ladder.
*/
/*
* Normalize Montgomery x/z coordinates: X = X/Z, Z = 1
* Cost: 1M + 1I
*/
static int ecp_normalize_mxz( const mbedtls_ecp_group *grp, mbedtls_ecp_point *P )
{
int ret;
#if defined(MBEDTLS_ECP_NORMALIZE_MXZ_ALT)
if( mbedtls_internal_ecp_grp_capable( grp ) )
return( mbedtls_internal_ecp_normalize_mxz( grp, P ) );
#endif /* MBEDTLS_ECP_NORMALIZE_MXZ_ALT */
MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &P->Z, &P->Z, &grp->P ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &P->X, &P->X, &P->Z ) ); MOD_MUL( P->X );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &P->Z, 1 ) );
cleanup:
return( ret );
}
/*
* Randomize projective x/z coordinates:
* (X, Z) -> (l X, l Z) for random l
* This is sort of the reverse operation of ecp_normalize_mxz().
*
* This countermeasure was first suggested in [2].
* Cost: 2M
*/
static int ecp_randomize_mxz( const mbedtls_ecp_group *grp, mbedtls_ecp_point *P,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
int ret;
mbedtls_mpi l;
size_t p_size;
int count = 0;
#if defined(MBEDTLS_ECP_RANDOMIZE_MXZ_ALT)
if( mbedtls_internal_ecp_grp_capable( grp ) )
return( mbedtls_internal_ecp_randomize_mxz( grp, P, f_rng, p_rng );
#endif /* MBEDTLS_ECP_RANDOMIZE_MXZ_ALT */
p_size = ( grp->pbits + 7 ) / 8;
mbedtls_mpi_init( &l );
/* Generate l such that 1 < l < p */
do
{
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &l, p_size, f_rng, p_rng ) );
while( mbedtls_mpi_cmp_mpi( &l, &grp->P ) >= 0 )
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &l, 1 ) );
if( count++ > 10 )
return( MBEDTLS_ERR_ECP_RANDOM_FAILED );
}
while( mbedtls_mpi_cmp_int( &l, 1 ) <= 0 );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &P->X, &P->X, &l ) ); MOD_MUL( P->X );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &P->Z, &P->Z, &l ) ); MOD_MUL( P->Z );
cleanup:
mbedtls_mpi_free( &l );
return( ret );
}
/*
* Double-and-add: R = 2P, S = P + Q, with d = X(P - Q),
* for Montgomery curves in x/z coordinates.
*
* http://www.hyperelliptic.org/EFD/g1p/auto-code/montgom/xz/ladder/mladd-1987-m.op3
* with
* d = X1
* P = (X2, Z2)
* Q = (X3, Z3)
* R = (X4, Z4)
* S = (X5, Z5)
* and eliminating temporary variables tO, ..., t4.
*
* Cost: 5M + 4S
*/
static int ecp_double_add_mxz( const mbedtls_ecp_group *grp,
mbedtls_ecp_point *R, mbedtls_ecp_point *S,
const mbedtls_ecp_point *P, const mbedtls_ecp_point *Q,
const mbedtls_mpi *d )
{
int ret;
mbedtls_mpi A, AA, B, BB, E, C, D, DA, CB;
#if defined(MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT)
if( mbedtls_internal_ecp_grp_capable( grp ) )
return( mbedtls_internal_ecp_double_add_mxz( grp, R, S, P, Q, d ) );
#endif /* MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT */
mbedtls_mpi_init( &A ); mbedtls_mpi_init( &AA ); mbedtls_mpi_init( &B );
mbedtls_mpi_init( &BB ); mbedtls_mpi_init( &E ); mbedtls_mpi_init( &C );
mbedtls_mpi_init( &D ); mbedtls_mpi_init( &DA ); mbedtls_mpi_init( &CB );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &A, &P->X, &P->Z ) ); MOD_ADD( A );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &AA, &A, &A ) ); MOD_MUL( AA );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &B, &P->X, &P->Z ) ); MOD_SUB( B );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &BB, &B, &B ) ); MOD_MUL( BB );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &E, &AA, &BB ) ); MOD_SUB( E );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &C, &Q->X, &Q->Z ) ); MOD_ADD( C );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &D, &Q->X, &Q->Z ) ); MOD_SUB( D );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &DA, &D, &A ) ); MOD_MUL( DA );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &CB, &C, &B ) ); MOD_MUL( CB );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &S->X, &DA, &CB ) ); MOD_MUL( S->X );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S->X, &S->X, &S->X ) ); MOD_MUL( S->X );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &S->Z, &DA, &CB ) ); MOD_SUB( S->Z );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S->Z, &S->Z, &S->Z ) ); MOD_MUL( S->Z );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &S->Z, d, &S->Z ) ); MOD_MUL( S->Z );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &R->X, &AA, &BB ) ); MOD_MUL( R->X );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &R->Z, &grp->A, &E ) ); MOD_MUL( R->Z );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &R->Z, &BB, &R->Z ) ); MOD_ADD( R->Z );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &R->Z, &E, &R->Z ) ); MOD_MUL( R->Z );
cleanup:
mbedtls_mpi_free( &A ); mbedtls_mpi_free( &AA ); mbedtls_mpi_free( &B );
mbedtls_mpi_free( &BB ); mbedtls_mpi_free( &E ); mbedtls_mpi_free( &C );
mbedtls_mpi_free( &D ); mbedtls_mpi_free( &DA ); mbedtls_mpi_free( &CB );
return( ret );
}
/*
* Multiplication with Montgomery ladder in x/z coordinates,
* for curves in Montgomery form
*/
static int ecp_mul_mxz( mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
const mbedtls_mpi *m, const mbedtls_ecp_point *P,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
size_t i;
unsigned char b;
mbedtls_ecp_point RP;
mbedtls_mpi PX;
mbedtls_ecp_point_init( &RP ); mbedtls_mpi_init( &PX );
/* Save PX and read from P before writing to R, in case P == R */
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &PX, &P->X ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_copy( &RP, P ) );
/* Set R to zero in modified x/z coordinates */
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &R->X, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &R->Z, 0 ) );
mbedtls_mpi_free( &R->Y );
/* RP.X might be sligtly larger than P, so reduce it */
MOD_ADD( RP.X );
/* Randomize coordinates of the starting point */
if( f_rng != NULL )
MBEDTLS_MPI_CHK( ecp_randomize_mxz( grp, &RP, f_rng, p_rng ) );
/* Loop invariant: R = result so far, RP = R + P */
i = mbedtls_mpi_bitlen( m ); /* one past the (zero-based) most significant bit */
while( i-- > 0 )
{
b = mbedtls_mpi_get_bit( m, i );
/*
* if (b) R = 2R + P else R = 2R,
* which is:
* if (b) double_add( RP, R, RP, R )
* else double_add( R, RP, R, RP )
* but using safe conditional swaps to avoid leaks
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_swap( &R->X, &RP.X, b ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_swap( &R->Z, &RP.Z, b ) );
MBEDTLS_MPI_CHK( ecp_double_add_mxz( grp, R, &RP, R, &RP, &PX ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_swap( &R->X, &RP.X, b ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_safe_cond_swap( &R->Z, &RP.Z, b ) );
}
MBEDTLS_MPI_CHK( ecp_normalize_mxz( grp, R ) );
cleanup:
mbedtls_ecp_point_free( &RP ); mbedtls_mpi_free( &PX );
return( ret );
}
#endif /* ECP_MONTGOMERY */
/*
* Restartable multiplication R = m * P
*/
int mbedtls_ecp_mul_restartable( mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
const mbedtls_mpi *m, const mbedtls_ecp_point *P,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
mbedtls_ecp_restart_ctx *rs_ctx )
{
int ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
#if defined(MBEDTLS_ECP_INTERNAL_ALT)
char is_grp_capable = 0;
#endif
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( R != NULL );
ECP_VALIDATE_RET( m != NULL );
ECP_VALIDATE_RET( P != NULL );
#if defined(MBEDTLS_ECP_RESTARTABLE)
/* reset ops count for this call if top-level */
if( rs_ctx != NULL && rs_ctx->depth++ == 0 )
rs_ctx->ops_done = 0;
#endif
#if defined(MBEDTLS_ECP_INTERNAL_ALT)
if( ( is_grp_capable = mbedtls_internal_ecp_grp_capable( grp ) ) )
MBEDTLS_MPI_CHK( mbedtls_internal_ecp_init( grp ) );
#endif /* MBEDTLS_ECP_INTERNAL_ALT */
#if defined(MBEDTLS_ECP_RESTARTABLE)
/* skip argument check when restarting */
if( rs_ctx == NULL || rs_ctx->rsm == NULL )
#endif
{
/* check_privkey is free */
MBEDTLS_ECP_BUDGET( MBEDTLS_ECP_OPS_CHK );
/* Common sanity checks */
MBEDTLS_MPI_CHK( mbedtls_ecp_check_privkey( grp, m ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_check_pubkey( grp, P ) );
}
ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
#if defined(ECP_MONTGOMERY)
if( ecp_get_type( grp ) == ECP_TYPE_MONTGOMERY )
MBEDTLS_MPI_CHK( ecp_mul_mxz( grp, R, m, P, f_rng, p_rng ) );
#endif
#if defined(ECP_SHORTWEIERSTRASS)
if( ecp_get_type( grp ) == ECP_TYPE_SHORT_WEIERSTRASS )
MBEDTLS_MPI_CHK( ecp_mul_comb( grp, R, m, P, f_rng, p_rng, rs_ctx ) );
#endif
cleanup:
#if defined(MBEDTLS_ECP_INTERNAL_ALT)
if( is_grp_capable )
mbedtls_internal_ecp_free( grp );
#endif /* MBEDTLS_ECP_INTERNAL_ALT */
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL )
rs_ctx->depth--;
#endif
return( ret );
}
/*
* Multiplication R = m * P
*/
int mbedtls_ecp_mul( mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
const mbedtls_mpi *m, const mbedtls_ecp_point *P,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( R != NULL );
ECP_VALIDATE_RET( m != NULL );
ECP_VALIDATE_RET( P != NULL );
return( mbedtls_ecp_mul_restartable( grp, R, m, P, f_rng, p_rng, NULL ) );
}
#if defined(ECP_SHORTWEIERSTRASS)
/*
* Check that an affine point is valid as a public key,
* short weierstrass curves (SEC1 3.2.3.1)
*/
static int ecp_check_pubkey_sw( const mbedtls_ecp_group *grp, const mbedtls_ecp_point *pt )
{
int ret;
mbedtls_mpi YY, RHS;
/* pt coordinates must be normalized for our checks */
if( mbedtls_mpi_cmp_int( &pt->X, 0 ) < 0 ||
mbedtls_mpi_cmp_int( &pt->Y, 0 ) < 0 ||
mbedtls_mpi_cmp_mpi( &pt->X, &grp->P ) >= 0 ||
mbedtls_mpi_cmp_mpi( &pt->Y, &grp->P ) >= 0 )
return( MBEDTLS_ERR_ECP_INVALID_KEY );
mbedtls_mpi_init( &YY ); mbedtls_mpi_init( &RHS );
/*
* YY = Y^2
* RHS = X (X^2 + A) + B = X^3 + A X + B
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &YY, &pt->Y, &pt->Y ) ); MOD_MUL( YY );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &RHS, &pt->X, &pt->X ) ); MOD_MUL( RHS );
/* Special case for A = -3 */
if( grp->A.p == NULL )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &RHS, &RHS, 3 ) ); MOD_SUB( RHS );
}
else
{
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &RHS, &RHS, &grp->A ) ); MOD_ADD( RHS );
}
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &RHS, &RHS, &pt->X ) ); MOD_MUL( RHS );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &RHS, &RHS, &grp->B ) ); MOD_ADD( RHS );
if( mbedtls_mpi_cmp_mpi( &YY, &RHS ) != 0 )
ret = MBEDTLS_ERR_ECP_INVALID_KEY;
cleanup:
mbedtls_mpi_free( &YY ); mbedtls_mpi_free( &RHS );
return( ret );
}
#endif /* ECP_SHORTWEIERSTRASS */
/*
* R = m * P with shortcuts for m == 1 and m == -1
* NOT constant-time - ONLY for short Weierstrass!
*/
static int mbedtls_ecp_mul_shortcuts( mbedtls_ecp_group *grp,
mbedtls_ecp_point *R,
const mbedtls_mpi *m,
const mbedtls_ecp_point *P,
mbedtls_ecp_restart_ctx *rs_ctx )
{
int ret;
if( mbedtls_mpi_cmp_int( m, 1 ) == 0 )
{
MBEDTLS_MPI_CHK( mbedtls_ecp_copy( R, P ) );
}
else if( mbedtls_mpi_cmp_int( m, -1 ) == 0 )
{
MBEDTLS_MPI_CHK( mbedtls_ecp_copy( R, P ) );
if( mbedtls_mpi_cmp_int( &R->Y, 0 ) != 0 )
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &R->Y, &grp->P, &R->Y ) );
}
else
{
MBEDTLS_MPI_CHK( mbedtls_ecp_mul_restartable( grp, R, m, P,
NULL, NULL, rs_ctx ) );
}
cleanup:
return( ret );
}
/*
* Restartable linear combination
* NOT constant-time
*/
int mbedtls_ecp_muladd_restartable(
mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
const mbedtls_mpi *m, const mbedtls_ecp_point *P,
const mbedtls_mpi *n, const mbedtls_ecp_point *Q,
mbedtls_ecp_restart_ctx *rs_ctx )
{
int ret;
mbedtls_ecp_point mP;
mbedtls_ecp_point *pmP = &mP;
mbedtls_ecp_point *pR = R;
#if defined(MBEDTLS_ECP_INTERNAL_ALT)
char is_grp_capable = 0;
#endif
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( R != NULL );
ECP_VALIDATE_RET( m != NULL );
ECP_VALIDATE_RET( P != NULL );
ECP_VALIDATE_RET( n != NULL );
ECP_VALIDATE_RET( Q != NULL );
if( ecp_get_type( grp ) != ECP_TYPE_SHORT_WEIERSTRASS )
return( MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE );
mbedtls_ecp_point_init( &mP );
ECP_RS_ENTER( ma );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->ma != NULL )
{
/* redirect intermediate results to restart context */
pmP = &rs_ctx->ma->mP;
pR = &rs_ctx->ma->R;
/* jump to next operation */
if( rs_ctx->ma->state == ecp_rsma_mul2 )
goto mul2;
if( rs_ctx->ma->state == ecp_rsma_add )
goto add;
if( rs_ctx->ma->state == ecp_rsma_norm )
goto norm;
}
#endif /* MBEDTLS_ECP_RESTARTABLE */
MBEDTLS_MPI_CHK( mbedtls_ecp_mul_shortcuts( grp, pmP, m, P, rs_ctx ) );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->ma != NULL )
rs_ctx->ma->state = ecp_rsma_mul2;
mul2:
#endif
MBEDTLS_MPI_CHK( mbedtls_ecp_mul_shortcuts( grp, pR, n, Q, rs_ctx ) );
#if defined(MBEDTLS_ECP_INTERNAL_ALT)
if( ( is_grp_capable = mbedtls_internal_ecp_grp_capable( grp ) ) )
MBEDTLS_MPI_CHK( mbedtls_internal_ecp_init( grp ) );
#endif /* MBEDTLS_ECP_INTERNAL_ALT */
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->ma != NULL )
rs_ctx->ma->state = ecp_rsma_add;
add:
#endif
MBEDTLS_ECP_BUDGET( MBEDTLS_ECP_OPS_ADD );
MBEDTLS_MPI_CHK( ecp_add_mixed( grp, pR, pmP, pR ) );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->ma != NULL )
rs_ctx->ma->state = ecp_rsma_norm;
norm:
#endif
MBEDTLS_ECP_BUDGET( MBEDTLS_ECP_OPS_INV );
MBEDTLS_MPI_CHK( ecp_normalize_jac( grp, pR ) );
#if defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && rs_ctx->ma != NULL )
MBEDTLS_MPI_CHK( mbedtls_ecp_copy( R, pR ) );
#endif
cleanup:
#if defined(MBEDTLS_ECP_INTERNAL_ALT)
if( is_grp_capable )
mbedtls_internal_ecp_free( grp );
#endif /* MBEDTLS_ECP_INTERNAL_ALT */
mbedtls_ecp_point_free( &mP );
ECP_RS_LEAVE( ma );
return( ret );
}
/*
* Linear combination
* NOT constant-time
*/
int mbedtls_ecp_muladd( mbedtls_ecp_group *grp, mbedtls_ecp_point *R,
const mbedtls_mpi *m, const mbedtls_ecp_point *P,
const mbedtls_mpi *n, const mbedtls_ecp_point *Q )
{
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( R != NULL );
ECP_VALIDATE_RET( m != NULL );
ECP_VALIDATE_RET( P != NULL );
ECP_VALIDATE_RET( n != NULL );
ECP_VALIDATE_RET( Q != NULL );
return( mbedtls_ecp_muladd_restartable( grp, R, m, P, n, Q, NULL ) );
}
#if defined(ECP_MONTGOMERY)
/*
* Check validity of a public key for Montgomery curves with x-only schemes
*/
static int ecp_check_pubkey_mx( const mbedtls_ecp_group *grp, const mbedtls_ecp_point *pt )
{
/* [Curve25519 p. 5] Just check X is the correct number of bytes */
/* Allow any public value, if it's too big then we'll just reduce it mod p
* (RFC 7748 sec. 5 para. 3). */
if( mbedtls_mpi_size( &pt->X ) > ( grp->nbits + 7 ) / 8 )
return( MBEDTLS_ERR_ECP_INVALID_KEY );
return( 0 );
}
#endif /* ECP_MONTGOMERY */
/*
* Check that a point is valid as a public key
*/
int mbedtls_ecp_check_pubkey( const mbedtls_ecp_group *grp,
const mbedtls_ecp_point *pt )
{
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( pt != NULL );
/* Must use affine coordinates */
if( mbedtls_mpi_cmp_int( &pt->Z, 1 ) != 0 )
return( MBEDTLS_ERR_ECP_INVALID_KEY );
#if defined(ECP_MONTGOMERY)
if( ecp_get_type( grp ) == ECP_TYPE_MONTGOMERY )
return( ecp_check_pubkey_mx( grp, pt ) );
#endif
#if defined(ECP_SHORTWEIERSTRASS)
if( ecp_get_type( grp ) == ECP_TYPE_SHORT_WEIERSTRASS )
return( ecp_check_pubkey_sw( grp, pt ) );
#endif
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
}
/*
* Check that an mbedtls_mpi is valid as a private key
*/
int mbedtls_ecp_check_privkey( const mbedtls_ecp_group *grp,
const mbedtls_mpi *d )
{
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( d != NULL );
#if defined(ECP_MONTGOMERY)
if( ecp_get_type( grp ) == ECP_TYPE_MONTGOMERY )
{
/* see RFC 7748 sec. 5 para. 5 */
if( mbedtls_mpi_get_bit( d, 0 ) != 0 ||
mbedtls_mpi_get_bit( d, 1 ) != 0 ||
mbedtls_mpi_bitlen( d ) - 1 != grp->nbits ) /* mbedtls_mpi_bitlen is one-based! */
return( MBEDTLS_ERR_ECP_INVALID_KEY );
/* see [Curve25519] page 5 */
if( grp->nbits == 254 && mbedtls_mpi_get_bit( d, 2 ) != 0 )
return( MBEDTLS_ERR_ECP_INVALID_KEY );
return( 0 );
}
#endif /* ECP_MONTGOMERY */
#if defined(ECP_SHORTWEIERSTRASS)
if( ecp_get_type( grp ) == ECP_TYPE_SHORT_WEIERSTRASS )
{
/* see SEC1 3.2 */
if( mbedtls_mpi_cmp_int( d, 1 ) < 0 ||
mbedtls_mpi_cmp_mpi( d, &grp->N ) >= 0 )
return( MBEDTLS_ERR_ECP_INVALID_KEY );
else
return( 0 );
}
#endif /* ECP_SHORTWEIERSTRASS */
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
}
/*
* Generate a private key
*/
int mbedtls_ecp_gen_privkey( const mbedtls_ecp_group *grp,
mbedtls_mpi *d,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
size_t n_size;
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( d != NULL );
ECP_VALIDATE_RET( f_rng != NULL );
n_size = ( grp->nbits + 7 ) / 8;
#if defined(ECP_MONTGOMERY)
if( ecp_get_type( grp ) == ECP_TYPE_MONTGOMERY )
{
/* [M225] page 5 */
size_t b;
do {
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( d, n_size, f_rng, p_rng ) );
} while( mbedtls_mpi_bitlen( d ) == 0);
/* Make sure the most significant bit is nbits */
b = mbedtls_mpi_bitlen( d ) - 1; /* mbedtls_mpi_bitlen is one-based */
if( b > grp->nbits )
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( d, b - grp->nbits ) );
else
MBEDTLS_MPI_CHK( mbedtls_mpi_set_bit( d, grp->nbits, 1 ) );
/* Make sure the last two bits are unset for Curve448, three bits for
Curve25519 */
MBEDTLS_MPI_CHK( mbedtls_mpi_set_bit( d, 0, 0 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_set_bit( d, 1, 0 ) );
if( grp->nbits == 254 )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_set_bit( d, 2, 0 ) );
}
}
#endif /* ECP_MONTGOMERY */
#if defined(ECP_SHORTWEIERSTRASS)
if( ecp_get_type( grp ) == ECP_TYPE_SHORT_WEIERSTRASS )
{
/* SEC1 3.2.1: Generate d such that 1 <= n < N */
int count = 0;
/*
* Match the procedure given in RFC 6979 (deterministic ECDSA):
* - use the same byte ordering;
* - keep the leftmost nbits bits of the generated octet string;
* - try until result is in the desired range.
* This also avoids any biais, which is especially important for ECDSA.
*/
do
{
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( d, n_size, f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( d, 8 * n_size - grp->nbits ) );
/*
* Each try has at worst a probability 1/2 of failing (the msb has
* a probability 1/2 of being 0, and then the result will be < N),
* so after 30 tries failure probability is a most 2**(-30).
*
* For most curves, 1 try is enough with overwhelming probability,
* since N starts with a lot of 1s in binary, but some curves
* such as secp224k1 are actually very close to the worst case.
*/
if( ++count > 30 )
return( MBEDTLS_ERR_ECP_RANDOM_FAILED );
}
while( mbedtls_mpi_cmp_int( d, 1 ) < 0 ||
mbedtls_mpi_cmp_mpi( d, &grp->N ) >= 0 );
}
#endif /* ECP_SHORTWEIERSTRASS */
cleanup:
return( ret );
}
/*
* Generate a keypair with configurable base point
*/
int mbedtls_ecp_gen_keypair_base( mbedtls_ecp_group *grp,
const mbedtls_ecp_point *G,
mbedtls_mpi *d, mbedtls_ecp_point *Q,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( d != NULL );
ECP_VALIDATE_RET( G != NULL );
ECP_VALIDATE_RET( Q != NULL );
ECP_VALIDATE_RET( f_rng != NULL );
MBEDTLS_MPI_CHK( mbedtls_ecp_gen_privkey( grp, d, f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_mul( grp, Q, d, G, f_rng, p_rng ) );
cleanup:
return( ret );
}
/*
* Generate key pair, wrapper for conventional base point
*/
int mbedtls_ecp_gen_keypair( mbedtls_ecp_group *grp,
mbedtls_mpi *d, mbedtls_ecp_point *Q,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
ECP_VALIDATE_RET( grp != NULL );
ECP_VALIDATE_RET( d != NULL );
ECP_VALIDATE_RET( Q != NULL );
ECP_VALIDATE_RET( f_rng != NULL );
return( mbedtls_ecp_gen_keypair_base( grp, &grp->G, d, Q, f_rng, p_rng ) );
}
/*
* Generate a keypair, prettier wrapper
*/
int mbedtls_ecp_gen_key( mbedtls_ecp_group_id grp_id, mbedtls_ecp_keypair *key,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
int ret;
ECP_VALIDATE_RET( key != NULL );
ECP_VALIDATE_RET( f_rng != NULL );
if( ( ret = mbedtls_ecp_group_load( &key->grp, grp_id ) ) != 0 )
return( ret );
return( mbedtls_ecp_gen_keypair( &key->grp, &key->d, &key->Q, f_rng, p_rng ) );
}
/*
* Check a public-private key pair
*/
int mbedtls_ecp_check_pub_priv( const mbedtls_ecp_keypair *pub, const mbedtls_ecp_keypair *prv )
{
int ret;
mbedtls_ecp_point Q;
mbedtls_ecp_group grp;
ECP_VALIDATE_RET( pub != NULL );
ECP_VALIDATE_RET( prv != NULL );
if( pub->grp.id == MBEDTLS_ECP_DP_NONE ||
pub->grp.id != prv->grp.id ||
mbedtls_mpi_cmp_mpi( &pub->Q.X, &prv->Q.X ) ||
mbedtls_mpi_cmp_mpi( &pub->Q.Y, &prv->Q.Y ) ||
mbedtls_mpi_cmp_mpi( &pub->Q.Z, &prv->Q.Z ) )
{
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
}
mbedtls_ecp_point_init( &Q );
mbedtls_ecp_group_init( &grp );
/* mbedtls_ecp_mul() needs a non-const group... */
mbedtls_ecp_group_copy( &grp, &prv->grp );
/* Also checks d is valid */
MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &grp, &Q, &prv->d, &prv->grp.G, NULL, NULL ) );
if( mbedtls_mpi_cmp_mpi( &Q.X, &prv->Q.X ) ||
mbedtls_mpi_cmp_mpi( &Q.Y, &prv->Q.Y ) ||
mbedtls_mpi_cmp_mpi( &Q.Z, &prv->Q.Z ) )
{
ret = MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
goto cleanup;
}
cleanup:
mbedtls_ecp_point_free( &Q );
mbedtls_ecp_group_free( &grp );
return( ret );
}
#if defined(MBEDTLS_SELF_TEST)
/*
* Checkup routine
*/
int mbedtls_ecp_self_test( int verbose )
{
int ret;
size_t i;
mbedtls_ecp_group grp;
mbedtls_ecp_point R, P;
mbedtls_mpi m;
unsigned long add_c_prev, dbl_c_prev, mul_c_prev;
/* exponents especially adapted for secp192r1 */
const char *exponents[] =
{
"000000000000000000000000000000000000000000000001", /* one */
"FFFFFFFFFFFFFFFFFFFFFFFF99DEF836146BC9B1B4D22830", /* N - 1 */
"5EA6F389A38B8BC81E767753B15AA5569E1782E30ABE7D25", /* random */
"400000000000000000000000000000000000000000000000", /* one and zeros */
"7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", /* all ones */
"555555555555555555555555555555555555555555555555", /* 101010... */
};
mbedtls_ecp_group_init( &grp );
mbedtls_ecp_point_init( &R );
mbedtls_ecp_point_init( &P );
mbedtls_mpi_init( &m );
/* Use secp192r1 if available, or any available curve */
#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
MBEDTLS_MPI_CHK( mbedtls_ecp_group_load( &grp, MBEDTLS_ECP_DP_SECP192R1 ) );
#else
MBEDTLS_MPI_CHK( mbedtls_ecp_group_load( &grp, mbedtls_ecp_curve_list()->grp_id ) );
#endif
if( verbose != 0 )
mbedtls_printf( " ECP test #1 (constant op_count, base point G): " );
/* Do a dummy multiplication first to trigger precomputation */
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &m, 2 ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &grp, &P, &m, &grp.G, NULL, NULL ) );
add_count = 0;
dbl_count = 0;
mul_count = 0;
MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &m, 16, exponents[0] ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &grp, &R, &m, &grp.G, NULL, NULL ) );
for( i = 1; i < sizeof( exponents ) / sizeof( exponents[0] ); i++ )
{
add_c_prev = add_count;
dbl_c_prev = dbl_count;
mul_c_prev = mul_count;
add_count = 0;
dbl_count = 0;
mul_count = 0;
MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &m, 16, exponents[i] ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &grp, &R, &m, &grp.G, NULL, NULL ) );
if( add_count != add_c_prev ||
dbl_count != dbl_c_prev ||
mul_count != mul_c_prev )
{
if( verbose != 0 )
mbedtls_printf( "failed (%u)\n", (unsigned int) i );
ret = 1;
goto cleanup;
}
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
if( verbose != 0 )
mbedtls_printf( " ECP test #2 (constant op_count, other point): " );
/* We computed P = 2G last time, use it */
add_count = 0;
dbl_count = 0;
mul_count = 0;
MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &m, 16, exponents[0] ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &grp, &R, &m, &P, NULL, NULL ) );
for( i = 1; i < sizeof( exponents ) / sizeof( exponents[0] ); i++ )
{
add_c_prev = add_count;
dbl_c_prev = dbl_count;
mul_c_prev = mul_count;
add_count = 0;
dbl_count = 0;
mul_count = 0;
MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &m, 16, exponents[i] ) );
MBEDTLS_MPI_CHK( mbedtls_ecp_mul( &grp, &R, &m, &P, NULL, NULL ) );
if( add_count != add_c_prev ||
dbl_count != dbl_c_prev ||
mul_count != mul_c_prev )
{
if( verbose != 0 )
mbedtls_printf( "failed (%u)\n", (unsigned int) i );
ret = 1;
goto cleanup;
}
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
cleanup:
if( ret < 0 && verbose != 0 )
mbedtls_printf( "Unexpected error, return code = %08X\n", ret );
mbedtls_ecp_group_free( &grp );
mbedtls_ecp_point_free( &R );
mbedtls_ecp_point_free( &P );
mbedtls_mpi_free( &m );
if( verbose != 0 )
mbedtls_printf( "\n" );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* !MBEDTLS_ECP_ALT */
#endif /* MBEDTLS_ECP_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/ecp.c | C | apache-2.0 | 94,924 |
/*
* Elliptic curves over GF(p): curve-specific data and functions
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_ECP_C)
#include "mbedtls/ecp.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if !defined(MBEDTLS_ECP_ALT)
/* Parameter validation macros based on platform_util.h */
#define ECP_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_ECP_BAD_INPUT_DATA )
#define ECP_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
!defined(inline) && !defined(__cplusplus)
#define inline __inline
#endif
/*
* Conversion macros for embedded constants:
* build lists of mbedtls_mpi_uint's from lists of unsigned char's grouped by 8, 4 or 2
*/
#if defined(MBEDTLS_HAVE_INT32)
#define BYTES_TO_T_UINT_4( a, b, c, d ) \
( (mbedtls_mpi_uint) a << 0 ) | \
( (mbedtls_mpi_uint) b << 8 ) | \
( (mbedtls_mpi_uint) c << 16 ) | \
( (mbedtls_mpi_uint) d << 24 )
#define BYTES_TO_T_UINT_2( a, b ) \
BYTES_TO_T_UINT_4( a, b, 0, 0 )
#define BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \
BYTES_TO_T_UINT_4( a, b, c, d ), \
BYTES_TO_T_UINT_4( e, f, g, h )
#else /* 64-bits */
#define BYTES_TO_T_UINT_8( a, b, c, d, e, f, g, h ) \
( (mbedtls_mpi_uint) a << 0 ) | \
( (mbedtls_mpi_uint) b << 8 ) | \
( (mbedtls_mpi_uint) c << 16 ) | \
( (mbedtls_mpi_uint) d << 24 ) | \
( (mbedtls_mpi_uint) e << 32 ) | \
( (mbedtls_mpi_uint) f << 40 ) | \
( (mbedtls_mpi_uint) g << 48 ) | \
( (mbedtls_mpi_uint) h << 56 )
#define BYTES_TO_T_UINT_4( a, b, c, d ) \
BYTES_TO_T_UINT_8( a, b, c, d, 0, 0, 0, 0 )
#define BYTES_TO_T_UINT_2( a, b ) \
BYTES_TO_T_UINT_8( a, b, 0, 0, 0, 0, 0, 0 )
#endif /* bits in mbedtls_mpi_uint */
/*
* Note: the constants are in little-endian order
* to be directly usable in MPIs
*/
/*
* Domain parameters for secp192r1
*/
#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
static const mbedtls_mpi_uint secp192r1_p[] = {
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
};
static const mbedtls_mpi_uint secp192r1_b[] = {
BYTES_TO_T_UINT_8( 0xB1, 0xB9, 0x46, 0xC1, 0xEC, 0xDE, 0xB8, 0xFE ),
BYTES_TO_T_UINT_8( 0x49, 0x30, 0x24, 0x72, 0xAB, 0xE9, 0xA7, 0x0F ),
BYTES_TO_T_UINT_8( 0xE7, 0x80, 0x9C, 0xE5, 0x19, 0x05, 0x21, 0x64 ),
};
static const mbedtls_mpi_uint secp192r1_gx[] = {
BYTES_TO_T_UINT_8( 0x12, 0x10, 0xFF, 0x82, 0xFD, 0x0A, 0xFF, 0xF4 ),
BYTES_TO_T_UINT_8( 0x00, 0x88, 0xA1, 0x43, 0xEB, 0x20, 0xBF, 0x7C ),
BYTES_TO_T_UINT_8( 0xF6, 0x90, 0x30, 0xB0, 0x0E, 0xA8, 0x8D, 0x18 ),
};
static const mbedtls_mpi_uint secp192r1_gy[] = {
BYTES_TO_T_UINT_8( 0x11, 0x48, 0x79, 0x1E, 0xA1, 0x77, 0xF9, 0x73 ),
BYTES_TO_T_UINT_8( 0xD5, 0xCD, 0x24, 0x6B, 0xED, 0x11, 0x10, 0x63 ),
BYTES_TO_T_UINT_8( 0x78, 0xDA, 0xC8, 0xFF, 0x95, 0x2B, 0x19, 0x07 ),
};
static const mbedtls_mpi_uint secp192r1_n[] = {
BYTES_TO_T_UINT_8( 0x31, 0x28, 0xD2, 0xB4, 0xB1, 0xC9, 0x6B, 0x14 ),
BYTES_TO_T_UINT_8( 0x36, 0xF8, 0xDE, 0x99, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
};
#endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */
/*
* Domain parameters for secp224r1
*/
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
static const mbedtls_mpi_uint secp224r1_p[] = {
BYTES_TO_T_UINT_8( 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ),
BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00 ),
};
static const mbedtls_mpi_uint secp224r1_b[] = {
BYTES_TO_T_UINT_8( 0xB4, 0xFF, 0x55, 0x23, 0x43, 0x39, 0x0B, 0x27 ),
BYTES_TO_T_UINT_8( 0xBA, 0xD8, 0xBF, 0xD7, 0xB7, 0xB0, 0x44, 0x50 ),
BYTES_TO_T_UINT_8( 0x56, 0x32, 0x41, 0xF5, 0xAB, 0xB3, 0x04, 0x0C ),
BYTES_TO_T_UINT_4( 0x85, 0x0A, 0x05, 0xB4 ),
};
static const mbedtls_mpi_uint secp224r1_gx[] = {
BYTES_TO_T_UINT_8( 0x21, 0x1D, 0x5C, 0x11, 0xD6, 0x80, 0x32, 0x34 ),
BYTES_TO_T_UINT_8( 0x22, 0x11, 0xC2, 0x56, 0xD3, 0xC1, 0x03, 0x4A ),
BYTES_TO_T_UINT_8( 0xB9, 0x90, 0x13, 0x32, 0x7F, 0xBF, 0xB4, 0x6B ),
BYTES_TO_T_UINT_4( 0xBD, 0x0C, 0x0E, 0xB7 ),
};
static const mbedtls_mpi_uint secp224r1_gy[] = {
BYTES_TO_T_UINT_8( 0x34, 0x7E, 0x00, 0x85, 0x99, 0x81, 0xD5, 0x44 ),
BYTES_TO_T_UINT_8( 0x64, 0x47, 0x07, 0x5A, 0xA0, 0x75, 0x43, 0xCD ),
BYTES_TO_T_UINT_8( 0xE6, 0xDF, 0x22, 0x4C, 0xFB, 0x23, 0xF7, 0xB5 ),
BYTES_TO_T_UINT_4( 0x88, 0x63, 0x37, 0xBD ),
};
static const mbedtls_mpi_uint secp224r1_n[] = {
BYTES_TO_T_UINT_8( 0x3D, 0x2A, 0x5C, 0x5C, 0x45, 0x29, 0xDD, 0x13 ),
BYTES_TO_T_UINT_8( 0x3E, 0xF0, 0xB8, 0xE0, 0xA2, 0x16, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_4( 0xFF, 0xFF, 0xFF, 0xFF ),
};
#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */
/*
* Domain parameters for secp256r1
*/
#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
static const mbedtls_mpi_uint secp256r1_p[] = {
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00 ),
BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ),
BYTES_TO_T_UINT_8( 0x01, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ),
};
static const mbedtls_mpi_uint secp256r1_b[] = {
BYTES_TO_T_UINT_8( 0x4B, 0x60, 0xD2, 0x27, 0x3E, 0x3C, 0xCE, 0x3B ),
BYTES_TO_T_UINT_8( 0xF6, 0xB0, 0x53, 0xCC, 0xB0, 0x06, 0x1D, 0x65 ),
BYTES_TO_T_UINT_8( 0xBC, 0x86, 0x98, 0x76, 0x55, 0xBD, 0xEB, 0xB3 ),
BYTES_TO_T_UINT_8( 0xE7, 0x93, 0x3A, 0xAA, 0xD8, 0x35, 0xC6, 0x5A ),
};
static const mbedtls_mpi_uint secp256r1_gx[] = {
BYTES_TO_T_UINT_8( 0x96, 0xC2, 0x98, 0xD8, 0x45, 0x39, 0xA1, 0xF4 ),
BYTES_TO_T_UINT_8( 0xA0, 0x33, 0xEB, 0x2D, 0x81, 0x7D, 0x03, 0x77 ),
BYTES_TO_T_UINT_8( 0xF2, 0x40, 0xA4, 0x63, 0xE5, 0xE6, 0xBC, 0xF8 ),
BYTES_TO_T_UINT_8( 0x47, 0x42, 0x2C, 0xE1, 0xF2, 0xD1, 0x17, 0x6B ),
};
static const mbedtls_mpi_uint secp256r1_gy[] = {
BYTES_TO_T_UINT_8( 0xF5, 0x51, 0xBF, 0x37, 0x68, 0x40, 0xB6, 0xCB ),
BYTES_TO_T_UINT_8( 0xCE, 0x5E, 0x31, 0x6B, 0x57, 0x33, 0xCE, 0x2B ),
BYTES_TO_T_UINT_8( 0x16, 0x9E, 0x0F, 0x7C, 0x4A, 0xEB, 0xE7, 0x8E ),
BYTES_TO_T_UINT_8( 0x9B, 0x7F, 0x1A, 0xFE, 0xE2, 0x42, 0xE3, 0x4F ),
};
static const mbedtls_mpi_uint secp256r1_n[] = {
BYTES_TO_T_UINT_8( 0x51, 0x25, 0x63, 0xFC, 0xC2, 0xCA, 0xB9, 0xF3 ),
BYTES_TO_T_UINT_8( 0x84, 0x9E, 0x17, 0xA7, 0xAD, 0xFA, 0xE6, 0xBC ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ),
};
#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */
/*
* Domain parameters for secp384r1
*/
#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
static const mbedtls_mpi_uint secp384r1_p[] = {
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00 ),
BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
};
static const mbedtls_mpi_uint secp384r1_b[] = {
BYTES_TO_T_UINT_8( 0xEF, 0x2A, 0xEC, 0xD3, 0xED, 0xC8, 0x85, 0x2A ),
BYTES_TO_T_UINT_8( 0x9D, 0xD1, 0x2E, 0x8A, 0x8D, 0x39, 0x56, 0xC6 ),
BYTES_TO_T_UINT_8( 0x5A, 0x87, 0x13, 0x50, 0x8F, 0x08, 0x14, 0x03 ),
BYTES_TO_T_UINT_8( 0x12, 0x41, 0x81, 0xFE, 0x6E, 0x9C, 0x1D, 0x18 ),
BYTES_TO_T_UINT_8( 0x19, 0x2D, 0xF8, 0xE3, 0x6B, 0x05, 0x8E, 0x98 ),
BYTES_TO_T_UINT_8( 0xE4, 0xE7, 0x3E, 0xE2, 0xA7, 0x2F, 0x31, 0xB3 ),
};
static const mbedtls_mpi_uint secp384r1_gx[] = {
BYTES_TO_T_UINT_8( 0xB7, 0x0A, 0x76, 0x72, 0x38, 0x5E, 0x54, 0x3A ),
BYTES_TO_T_UINT_8( 0x6C, 0x29, 0x55, 0xBF, 0x5D, 0xF2, 0x02, 0x55 ),
BYTES_TO_T_UINT_8( 0x38, 0x2A, 0x54, 0x82, 0xE0, 0x41, 0xF7, 0x59 ),
BYTES_TO_T_UINT_8( 0x98, 0x9B, 0xA7, 0x8B, 0x62, 0x3B, 0x1D, 0x6E ),
BYTES_TO_T_UINT_8( 0x74, 0xAD, 0x20, 0xF3, 0x1E, 0xC7, 0xB1, 0x8E ),
BYTES_TO_T_UINT_8( 0x37, 0x05, 0x8B, 0xBE, 0x22, 0xCA, 0x87, 0xAA ),
};
static const mbedtls_mpi_uint secp384r1_gy[] = {
BYTES_TO_T_UINT_8( 0x5F, 0x0E, 0xEA, 0x90, 0x7C, 0x1D, 0x43, 0x7A ),
BYTES_TO_T_UINT_8( 0x9D, 0x81, 0x7E, 0x1D, 0xCE, 0xB1, 0x60, 0x0A ),
BYTES_TO_T_UINT_8( 0xC0, 0xB8, 0xF0, 0xB5, 0x13, 0x31, 0xDA, 0xE9 ),
BYTES_TO_T_UINT_8( 0x7C, 0x14, 0x9A, 0x28, 0xBD, 0x1D, 0xF4, 0xF8 ),
BYTES_TO_T_UINT_8( 0x29, 0xDC, 0x92, 0x92, 0xBF, 0x98, 0x9E, 0x5D ),
BYTES_TO_T_UINT_8( 0x6F, 0x2C, 0x26, 0x96, 0x4A, 0xDE, 0x17, 0x36 ),
};
static const mbedtls_mpi_uint secp384r1_n[] = {
BYTES_TO_T_UINT_8( 0x73, 0x29, 0xC5, 0xCC, 0x6A, 0x19, 0xEC, 0xEC ),
BYTES_TO_T_UINT_8( 0x7A, 0xA7, 0xB0, 0x48, 0xB2, 0x0D, 0x1A, 0x58 ),
BYTES_TO_T_UINT_8( 0xDF, 0x2D, 0x37, 0xF4, 0x81, 0x4D, 0x63, 0xC7 ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
};
#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */
/*
* Domain parameters for secp521r1
*/
#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
static const mbedtls_mpi_uint secp521r1_p[] = {
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_2( 0xFF, 0x01 ),
};
static const mbedtls_mpi_uint secp521r1_b[] = {
BYTES_TO_T_UINT_8( 0x00, 0x3F, 0x50, 0x6B, 0xD4, 0x1F, 0x45, 0xEF ),
BYTES_TO_T_UINT_8( 0xF1, 0x34, 0x2C, 0x3D, 0x88, 0xDF, 0x73, 0x35 ),
BYTES_TO_T_UINT_8( 0x07, 0xBF, 0xB1, 0x3B, 0xBD, 0xC0, 0x52, 0x16 ),
BYTES_TO_T_UINT_8( 0x7B, 0x93, 0x7E, 0xEC, 0x51, 0x39, 0x19, 0x56 ),
BYTES_TO_T_UINT_8( 0xE1, 0x09, 0xF1, 0x8E, 0x91, 0x89, 0xB4, 0xB8 ),
BYTES_TO_T_UINT_8( 0xF3, 0x15, 0xB3, 0x99, 0x5B, 0x72, 0xDA, 0xA2 ),
BYTES_TO_T_UINT_8( 0xEE, 0x40, 0x85, 0xB6, 0xA0, 0x21, 0x9A, 0x92 ),
BYTES_TO_T_UINT_8( 0x1F, 0x9A, 0x1C, 0x8E, 0x61, 0xB9, 0x3E, 0x95 ),
BYTES_TO_T_UINT_2( 0x51, 0x00 ),
};
static const mbedtls_mpi_uint secp521r1_gx[] = {
BYTES_TO_T_UINT_8( 0x66, 0xBD, 0xE5, 0xC2, 0x31, 0x7E, 0x7E, 0xF9 ),
BYTES_TO_T_UINT_8( 0x9B, 0x42, 0x6A, 0x85, 0xC1, 0xB3, 0x48, 0x33 ),
BYTES_TO_T_UINT_8( 0xDE, 0xA8, 0xFF, 0xA2, 0x27, 0xC1, 0x1D, 0xFE ),
BYTES_TO_T_UINT_8( 0x28, 0x59, 0xE7, 0xEF, 0x77, 0x5E, 0x4B, 0xA1 ),
BYTES_TO_T_UINT_8( 0xBA, 0x3D, 0x4D, 0x6B, 0x60, 0xAF, 0x28, 0xF8 ),
BYTES_TO_T_UINT_8( 0x21, 0xB5, 0x3F, 0x05, 0x39, 0x81, 0x64, 0x9C ),
BYTES_TO_T_UINT_8( 0x42, 0xB4, 0x95, 0x23, 0x66, 0xCB, 0x3E, 0x9E ),
BYTES_TO_T_UINT_8( 0xCD, 0xE9, 0x04, 0x04, 0xB7, 0x06, 0x8E, 0x85 ),
BYTES_TO_T_UINT_2( 0xC6, 0x00 ),
};
static const mbedtls_mpi_uint secp521r1_gy[] = {
BYTES_TO_T_UINT_8( 0x50, 0x66, 0xD1, 0x9F, 0x76, 0x94, 0xBE, 0x88 ),
BYTES_TO_T_UINT_8( 0x40, 0xC2, 0x72, 0xA2, 0x86, 0x70, 0x3C, 0x35 ),
BYTES_TO_T_UINT_8( 0x61, 0x07, 0xAD, 0x3F, 0x01, 0xB9, 0x50, 0xC5 ),
BYTES_TO_T_UINT_8( 0x40, 0x26, 0xF4, 0x5E, 0x99, 0x72, 0xEE, 0x97 ),
BYTES_TO_T_UINT_8( 0x2C, 0x66, 0x3E, 0x27, 0x17, 0xBD, 0xAF, 0x17 ),
BYTES_TO_T_UINT_8( 0x68, 0x44, 0x9B, 0x57, 0x49, 0x44, 0xF5, 0x98 ),
BYTES_TO_T_UINT_8( 0xD9, 0x1B, 0x7D, 0x2C, 0xB4, 0x5F, 0x8A, 0x5C ),
BYTES_TO_T_UINT_8( 0x04, 0xC0, 0x3B, 0x9A, 0x78, 0x6A, 0x29, 0x39 ),
BYTES_TO_T_UINT_2( 0x18, 0x01 ),
};
static const mbedtls_mpi_uint secp521r1_n[] = {
BYTES_TO_T_UINT_8( 0x09, 0x64, 0x38, 0x91, 0x1E, 0xB7, 0x6F, 0xBB ),
BYTES_TO_T_UINT_8( 0xAE, 0x47, 0x9C, 0x89, 0xB8, 0xC9, 0xB5, 0x3B ),
BYTES_TO_T_UINT_8( 0xD0, 0xA5, 0x09, 0xF7, 0x48, 0x01, 0xCC, 0x7F ),
BYTES_TO_T_UINT_8( 0x6B, 0x96, 0x2F, 0xBF, 0x83, 0x87, 0x86, 0x51 ),
BYTES_TO_T_UINT_8( 0xFA, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_2( 0xFF, 0x01 ),
};
#endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
static const mbedtls_mpi_uint secp192k1_p[] = {
BYTES_TO_T_UINT_8( 0x37, 0xEE, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
};
static const mbedtls_mpi_uint secp192k1_a[] = {
BYTES_TO_T_UINT_2( 0x00, 0x00 ),
};
static const mbedtls_mpi_uint secp192k1_b[] = {
BYTES_TO_T_UINT_2( 0x03, 0x00 ),
};
static const mbedtls_mpi_uint secp192k1_gx[] = {
BYTES_TO_T_UINT_8( 0x7D, 0x6C, 0xE0, 0xEA, 0xB1, 0xD1, 0xA5, 0x1D ),
BYTES_TO_T_UINT_8( 0x34, 0xF4, 0xB7, 0x80, 0x02, 0x7D, 0xB0, 0x26 ),
BYTES_TO_T_UINT_8( 0xAE, 0xE9, 0x57, 0xC0, 0x0E, 0xF1, 0x4F, 0xDB ),
};
static const mbedtls_mpi_uint secp192k1_gy[] = {
BYTES_TO_T_UINT_8( 0x9D, 0x2F, 0x5E, 0xD9, 0x88, 0xAA, 0x82, 0x40 ),
BYTES_TO_T_UINT_8( 0x34, 0x86, 0xBE, 0x15, 0xD0, 0x63, 0x41, 0x84 ),
BYTES_TO_T_UINT_8( 0xA7, 0x28, 0x56, 0x9C, 0x6D, 0x2F, 0x2F, 0x9B ),
};
static const mbedtls_mpi_uint secp192k1_n[] = {
BYTES_TO_T_UINT_8( 0x8D, 0xFD, 0xDE, 0x74, 0x6A, 0x46, 0x69, 0x0F ),
BYTES_TO_T_UINT_8( 0x17, 0xFC, 0xF2, 0x26, 0xFE, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
};
#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
static const mbedtls_mpi_uint secp224k1_p[] = {
BYTES_TO_T_UINT_8( 0x6D, 0xE5, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_4( 0xFF, 0xFF, 0xFF, 0xFF ),
};
static const mbedtls_mpi_uint secp224k1_a[] = {
BYTES_TO_T_UINT_2( 0x00, 0x00 ),
};
static const mbedtls_mpi_uint secp224k1_b[] = {
BYTES_TO_T_UINT_2( 0x05, 0x00 ),
};
static const mbedtls_mpi_uint secp224k1_gx[] = {
BYTES_TO_T_UINT_8( 0x5C, 0xA4, 0xB7, 0xB6, 0x0E, 0x65, 0x7E, 0x0F ),
BYTES_TO_T_UINT_8( 0xA9, 0x75, 0x70, 0xE4, 0xE9, 0x67, 0xA4, 0x69 ),
BYTES_TO_T_UINT_8( 0xA1, 0x28, 0xFC, 0x30, 0xDF, 0x99, 0xF0, 0x4D ),
BYTES_TO_T_UINT_4( 0x33, 0x5B, 0x45, 0xA1 ),
};
static const mbedtls_mpi_uint secp224k1_gy[] = {
BYTES_TO_T_UINT_8( 0xA5, 0x61, 0x6D, 0x55, 0xDB, 0x4B, 0xCA, 0xE2 ),
BYTES_TO_T_UINT_8( 0x59, 0xBD, 0xB0, 0xC0, 0xF7, 0x19, 0xE3, 0xF7 ),
BYTES_TO_T_UINT_8( 0xD6, 0xFB, 0xCA, 0x82, 0x42, 0x34, 0xBA, 0x7F ),
BYTES_TO_T_UINT_4( 0xED, 0x9F, 0x08, 0x7E ),
};
static const mbedtls_mpi_uint secp224k1_n[] = {
BYTES_TO_T_UINT_8( 0xF7, 0xB1, 0x9F, 0x76, 0x71, 0xA9, 0xF0, 0xCA ),
BYTES_TO_T_UINT_8( 0x84, 0x61, 0xEC, 0xD2, 0xE8, 0xDC, 0x01, 0x00 ),
BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ),
BYTES_TO_T_UINT_8( 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00 ),
};
#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
static const mbedtls_mpi_uint secp256k1_p[] = {
BYTES_TO_T_UINT_8( 0x2F, 0xFC, 0xFF, 0xFF, 0xFE, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
};
static const mbedtls_mpi_uint secp256k1_a[] = {
BYTES_TO_T_UINT_2( 0x00, 0x00 ),
};
static const mbedtls_mpi_uint secp256k1_b[] = {
BYTES_TO_T_UINT_2( 0x07, 0x00 ),
};
static const mbedtls_mpi_uint secp256k1_gx[] = {
BYTES_TO_T_UINT_8( 0x98, 0x17, 0xF8, 0x16, 0x5B, 0x81, 0xF2, 0x59 ),
BYTES_TO_T_UINT_8( 0xD9, 0x28, 0xCE, 0x2D, 0xDB, 0xFC, 0x9B, 0x02 ),
BYTES_TO_T_UINT_8( 0x07, 0x0B, 0x87, 0xCE, 0x95, 0x62, 0xA0, 0x55 ),
BYTES_TO_T_UINT_8( 0xAC, 0xBB, 0xDC, 0xF9, 0x7E, 0x66, 0xBE, 0x79 ),
};
static const mbedtls_mpi_uint secp256k1_gy[] = {
BYTES_TO_T_UINT_8( 0xB8, 0xD4, 0x10, 0xFB, 0x8F, 0xD0, 0x47, 0x9C ),
BYTES_TO_T_UINT_8( 0x19, 0x54, 0x85, 0xA6, 0x48, 0xB4, 0x17, 0xFD ),
BYTES_TO_T_UINT_8( 0xA8, 0x08, 0x11, 0x0E, 0xFC, 0xFB, 0xA4, 0x5D ),
BYTES_TO_T_UINT_8( 0x65, 0xC4, 0xA3, 0x26, 0x77, 0xDA, 0x3A, 0x48 ),
};
static const mbedtls_mpi_uint secp256k1_n[] = {
BYTES_TO_T_UINT_8( 0x41, 0x41, 0x36, 0xD0, 0x8C, 0x5E, 0xD2, 0xBF ),
BYTES_TO_T_UINT_8( 0x3B, 0xA0, 0x48, 0xAF, 0xE6, 0xDC, 0xAE, 0xBA ),
BYTES_TO_T_UINT_8( 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
BYTES_TO_T_UINT_8( 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF ),
};
#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */
/*
* Domain parameters for brainpoolP256r1 (RFC 5639 3.4)
*/
#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
static const mbedtls_mpi_uint brainpoolP256r1_p[] = {
BYTES_TO_T_UINT_8( 0x77, 0x53, 0x6E, 0x1F, 0x1D, 0x48, 0x13, 0x20 ),
BYTES_TO_T_UINT_8( 0x28, 0x20, 0x26, 0xD5, 0x23, 0xF6, 0x3B, 0x6E ),
BYTES_TO_T_UINT_8( 0x72, 0x8D, 0x83, 0x9D, 0x90, 0x0A, 0x66, 0x3E ),
BYTES_TO_T_UINT_8( 0xBC, 0xA9, 0xEE, 0xA1, 0xDB, 0x57, 0xFB, 0xA9 ),
};
static const mbedtls_mpi_uint brainpoolP256r1_a[] = {
BYTES_TO_T_UINT_8( 0xD9, 0xB5, 0x30, 0xF3, 0x44, 0x4B, 0x4A, 0xE9 ),
BYTES_TO_T_UINT_8( 0x6C, 0x5C, 0xDC, 0x26, 0xC1, 0x55, 0x80, 0xFB ),
BYTES_TO_T_UINT_8( 0xE7, 0xFF, 0x7A, 0x41, 0x30, 0x75, 0xF6, 0xEE ),
BYTES_TO_T_UINT_8( 0x57, 0x30, 0x2C, 0xFC, 0x75, 0x09, 0x5A, 0x7D ),
};
static const mbedtls_mpi_uint brainpoolP256r1_b[] = {
BYTES_TO_T_UINT_8( 0xB6, 0x07, 0x8C, 0xFF, 0x18, 0xDC, 0xCC, 0x6B ),
BYTES_TO_T_UINT_8( 0xCE, 0xE1, 0xF7, 0x5C, 0x29, 0x16, 0x84, 0x95 ),
BYTES_TO_T_UINT_8( 0xBF, 0x7C, 0xD7, 0xBB, 0xD9, 0xB5, 0x30, 0xF3 ),
BYTES_TO_T_UINT_8( 0x44, 0x4B, 0x4A, 0xE9, 0x6C, 0x5C, 0xDC, 0x26 ),
};
static const mbedtls_mpi_uint brainpoolP256r1_gx[] = {
BYTES_TO_T_UINT_8( 0x62, 0x32, 0xCE, 0x9A, 0xBD, 0x53, 0x44, 0x3A ),
BYTES_TO_T_UINT_8( 0xC2, 0x23, 0xBD, 0xE3, 0xE1, 0x27, 0xDE, 0xB9 ),
BYTES_TO_T_UINT_8( 0xAF, 0xB7, 0x81, 0xFC, 0x2F, 0x48, 0x4B, 0x2C ),
BYTES_TO_T_UINT_8( 0xCB, 0x57, 0x7E, 0xCB, 0xB9, 0xAE, 0xD2, 0x8B ),
};
static const mbedtls_mpi_uint brainpoolP256r1_gy[] = {
BYTES_TO_T_UINT_8( 0x97, 0x69, 0x04, 0x2F, 0xC7, 0x54, 0x1D, 0x5C ),
BYTES_TO_T_UINT_8( 0x54, 0x8E, 0xED, 0x2D, 0x13, 0x45, 0x77, 0xC2 ),
BYTES_TO_T_UINT_8( 0xC9, 0x1D, 0x61, 0x14, 0x1A, 0x46, 0xF8, 0x97 ),
BYTES_TO_T_UINT_8( 0xFD, 0xC4, 0xDA, 0xC3, 0x35, 0xF8, 0x7E, 0x54 ),
};
static const mbedtls_mpi_uint brainpoolP256r1_n[] = {
BYTES_TO_T_UINT_8( 0xA7, 0x56, 0x48, 0x97, 0x82, 0x0E, 0x1E, 0x90 ),
BYTES_TO_T_UINT_8( 0xF7, 0xA6, 0x61, 0xB5, 0xA3, 0x7A, 0x39, 0x8C ),
BYTES_TO_T_UINT_8( 0x71, 0x8D, 0x83, 0x9D, 0x90, 0x0A, 0x66, 0x3E ),
BYTES_TO_T_UINT_8( 0xBC, 0xA9, 0xEE, 0xA1, 0xDB, 0x57, 0xFB, 0xA9 ),
};
#endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */
/*
* Domain parameters for brainpoolP384r1 (RFC 5639 3.6)
*/
#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
static const mbedtls_mpi_uint brainpoolP384r1_p[] = {
BYTES_TO_T_UINT_8( 0x53, 0xEC, 0x07, 0x31, 0x13, 0x00, 0x47, 0x87 ),
BYTES_TO_T_UINT_8( 0x71, 0x1A, 0x1D, 0x90, 0x29, 0xA7, 0xD3, 0xAC ),
BYTES_TO_T_UINT_8( 0x23, 0x11, 0xB7, 0x7F, 0x19, 0xDA, 0xB1, 0x12 ),
BYTES_TO_T_UINT_8( 0xB4, 0x56, 0x54, 0xED, 0x09, 0x71, 0x2F, 0x15 ),
BYTES_TO_T_UINT_8( 0xDF, 0x41, 0xE6, 0x50, 0x7E, 0x6F, 0x5D, 0x0F ),
BYTES_TO_T_UINT_8( 0x28, 0x6D, 0x38, 0xA3, 0x82, 0x1E, 0xB9, 0x8C ),
};
static const mbedtls_mpi_uint brainpoolP384r1_a[] = {
BYTES_TO_T_UINT_8( 0x26, 0x28, 0xCE, 0x22, 0xDD, 0xC7, 0xA8, 0x04 ),
BYTES_TO_T_UINT_8( 0xEB, 0xD4, 0x3A, 0x50, 0x4A, 0x81, 0xA5, 0x8A ),
BYTES_TO_T_UINT_8( 0x0F, 0xF9, 0x91, 0xBA, 0xEF, 0x65, 0x91, 0x13 ),
BYTES_TO_T_UINT_8( 0x87, 0x27, 0xB2, 0x4F, 0x8E, 0xA2, 0xBE, 0xC2 ),
BYTES_TO_T_UINT_8( 0xA0, 0xAF, 0x05, 0xCE, 0x0A, 0x08, 0x72, 0x3C ),
BYTES_TO_T_UINT_8( 0x0C, 0x15, 0x8C, 0x3D, 0xC6, 0x82, 0xC3, 0x7B ),
};
static const mbedtls_mpi_uint brainpoolP384r1_b[] = {
BYTES_TO_T_UINT_8( 0x11, 0x4C, 0x50, 0xFA, 0x96, 0x86, 0xB7, 0x3A ),
BYTES_TO_T_UINT_8( 0x94, 0xC9, 0xDB, 0x95, 0x02, 0x39, 0xB4, 0x7C ),
BYTES_TO_T_UINT_8( 0xD5, 0x62, 0xEB, 0x3E, 0xA5, 0x0E, 0x88, 0x2E ),
BYTES_TO_T_UINT_8( 0xA6, 0xD2, 0xDC, 0x07, 0xE1, 0x7D, 0xB7, 0x2F ),
BYTES_TO_T_UINT_8( 0x7C, 0x44, 0xF0, 0x16, 0x54, 0xB5, 0x39, 0x8B ),
BYTES_TO_T_UINT_8( 0x26, 0x28, 0xCE, 0x22, 0xDD, 0xC7, 0xA8, 0x04 ),
};
static const mbedtls_mpi_uint brainpoolP384r1_gx[] = {
BYTES_TO_T_UINT_8( 0x1E, 0xAF, 0xD4, 0x47, 0xE2, 0xB2, 0x87, 0xEF ),
BYTES_TO_T_UINT_8( 0xAA, 0x46, 0xD6, 0x36, 0x34, 0xE0, 0x26, 0xE8 ),
BYTES_TO_T_UINT_8( 0xE8, 0x10, 0xBD, 0x0C, 0xFE, 0xCA, 0x7F, 0xDB ),
BYTES_TO_T_UINT_8( 0xE3, 0x4F, 0xF1, 0x7E, 0xE7, 0xA3, 0x47, 0x88 ),
BYTES_TO_T_UINT_8( 0x6B, 0x3F, 0xC1, 0xB7, 0x81, 0x3A, 0xA6, 0xA2 ),
BYTES_TO_T_UINT_8( 0xFF, 0x45, 0xCF, 0x68, 0xF0, 0x64, 0x1C, 0x1D ),
};
static const mbedtls_mpi_uint brainpoolP384r1_gy[] = {
BYTES_TO_T_UINT_8( 0x15, 0x53, 0x3C, 0x26, 0x41, 0x03, 0x82, 0x42 ),
BYTES_TO_T_UINT_8( 0x11, 0x81, 0x91, 0x77, 0x21, 0x46, 0x46, 0x0E ),
BYTES_TO_T_UINT_8( 0x28, 0x29, 0x91, 0xF9, 0x4F, 0x05, 0x9C, 0xE1 ),
BYTES_TO_T_UINT_8( 0x64, 0x58, 0xEC, 0xFE, 0x29, 0x0B, 0xB7, 0x62 ),
BYTES_TO_T_UINT_8( 0x52, 0xD5, 0xCF, 0x95, 0x8E, 0xEB, 0xB1, 0x5C ),
BYTES_TO_T_UINT_8( 0xA4, 0xC2, 0xF9, 0x20, 0x75, 0x1D, 0xBE, 0x8A ),
};
static const mbedtls_mpi_uint brainpoolP384r1_n[] = {
BYTES_TO_T_UINT_8( 0x65, 0x65, 0x04, 0xE9, 0x02, 0x32, 0x88, 0x3B ),
BYTES_TO_T_UINT_8( 0x10, 0xC3, 0x7F, 0x6B, 0xAF, 0xB6, 0x3A, 0xCF ),
BYTES_TO_T_UINT_8( 0xA7, 0x25, 0x04, 0xAC, 0x6C, 0x6E, 0x16, 0x1F ),
BYTES_TO_T_UINT_8( 0xB3, 0x56, 0x54, 0xED, 0x09, 0x71, 0x2F, 0x15 ),
BYTES_TO_T_UINT_8( 0xDF, 0x41, 0xE6, 0x50, 0x7E, 0x6F, 0x5D, 0x0F ),
BYTES_TO_T_UINT_8( 0x28, 0x6D, 0x38, 0xA3, 0x82, 0x1E, 0xB9, 0x8C ),
};
#endif /* MBEDTLS_ECP_DP_BP384R1_ENABLED */
/*
* Domain parameters for brainpoolP512r1 (RFC 5639 3.7)
*/
#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
static const mbedtls_mpi_uint brainpoolP512r1_p[] = {
BYTES_TO_T_UINT_8( 0xF3, 0x48, 0x3A, 0x58, 0x56, 0x60, 0xAA, 0x28 ),
BYTES_TO_T_UINT_8( 0x85, 0xC6, 0x82, 0x2D, 0x2F, 0xFF, 0x81, 0x28 ),
BYTES_TO_T_UINT_8( 0xE6, 0x80, 0xA3, 0xE6, 0x2A, 0xA1, 0xCD, 0xAE ),
BYTES_TO_T_UINT_8( 0x42, 0x68, 0xC6, 0x9B, 0x00, 0x9B, 0x4D, 0x7D ),
BYTES_TO_T_UINT_8( 0x71, 0x08, 0x33, 0x70, 0xCA, 0x9C, 0x63, 0xD6 ),
BYTES_TO_T_UINT_8( 0x0E, 0xD2, 0xC9, 0xB3, 0xB3, 0x8D, 0x30, 0xCB ),
BYTES_TO_T_UINT_8( 0x07, 0xFC, 0xC9, 0x33, 0xAE, 0xE6, 0xD4, 0x3F ),
BYTES_TO_T_UINT_8( 0x8B, 0xC4, 0xE9, 0xDB, 0xB8, 0x9D, 0xDD, 0xAA ),
};
static const mbedtls_mpi_uint brainpoolP512r1_a[] = {
BYTES_TO_T_UINT_8( 0xCA, 0x94, 0xFC, 0x77, 0x4D, 0xAC, 0xC1, 0xE7 ),
BYTES_TO_T_UINT_8( 0xB9, 0xC7, 0xF2, 0x2B, 0xA7, 0x17, 0x11, 0x7F ),
BYTES_TO_T_UINT_8( 0xB5, 0xC8, 0x9A, 0x8B, 0xC9, 0xF1, 0x2E, 0x0A ),
BYTES_TO_T_UINT_8( 0xA1, 0x3A, 0x25, 0xA8, 0x5A, 0x5D, 0xED, 0x2D ),
BYTES_TO_T_UINT_8( 0xBC, 0x63, 0x98, 0xEA, 0xCA, 0x41, 0x34, 0xA8 ),
BYTES_TO_T_UINT_8( 0x10, 0x16, 0xF9, 0x3D, 0x8D, 0xDD, 0xCB, 0x94 ),
BYTES_TO_T_UINT_8( 0xC5, 0x4C, 0x23, 0xAC, 0x45, 0x71, 0x32, 0xE2 ),
BYTES_TO_T_UINT_8( 0x89, 0x3B, 0x60, 0x8B, 0x31, 0xA3, 0x30, 0x78 ),
};
static const mbedtls_mpi_uint brainpoolP512r1_b[] = {
BYTES_TO_T_UINT_8( 0x23, 0xF7, 0x16, 0x80, 0x63, 0xBD, 0x09, 0x28 ),
BYTES_TO_T_UINT_8( 0xDD, 0xE5, 0xBA, 0x5E, 0xB7, 0x50, 0x40, 0x98 ),
BYTES_TO_T_UINT_8( 0x67, 0x3E, 0x08, 0xDC, 0xCA, 0x94, 0xFC, 0x77 ),
BYTES_TO_T_UINT_8( 0x4D, 0xAC, 0xC1, 0xE7, 0xB9, 0xC7, 0xF2, 0x2B ),
BYTES_TO_T_UINT_8( 0xA7, 0x17, 0x11, 0x7F, 0xB5, 0xC8, 0x9A, 0x8B ),
BYTES_TO_T_UINT_8( 0xC9, 0xF1, 0x2E, 0x0A, 0xA1, 0x3A, 0x25, 0xA8 ),
BYTES_TO_T_UINT_8( 0x5A, 0x5D, 0xED, 0x2D, 0xBC, 0x63, 0x98, 0xEA ),
BYTES_TO_T_UINT_8( 0xCA, 0x41, 0x34, 0xA8, 0x10, 0x16, 0xF9, 0x3D ),
};
static const mbedtls_mpi_uint brainpoolP512r1_gx[] = {
BYTES_TO_T_UINT_8( 0x22, 0xF8, 0xB9, 0xBC, 0x09, 0x22, 0x35, 0x8B ),
BYTES_TO_T_UINT_8( 0x68, 0x5E, 0x6A, 0x40, 0x47, 0x50, 0x6D, 0x7C ),
BYTES_TO_T_UINT_8( 0x5F, 0x7D, 0xB9, 0x93, 0x7B, 0x68, 0xD1, 0x50 ),
BYTES_TO_T_UINT_8( 0x8D, 0xD4, 0xD0, 0xE2, 0x78, 0x1F, 0x3B, 0xFF ),
BYTES_TO_T_UINT_8( 0x8E, 0x09, 0xD0, 0xF4, 0xEE, 0x62, 0x3B, 0xB4 ),
BYTES_TO_T_UINT_8( 0xC1, 0x16, 0xD9, 0xB5, 0x70, 0x9F, 0xED, 0x85 ),
BYTES_TO_T_UINT_8( 0x93, 0x6A, 0x4C, 0x9C, 0x2E, 0x32, 0x21, 0x5A ),
BYTES_TO_T_UINT_8( 0x64, 0xD9, 0x2E, 0xD8, 0xBD, 0xE4, 0xAE, 0x81 ),
};
static const mbedtls_mpi_uint brainpoolP512r1_gy[] = {
BYTES_TO_T_UINT_8( 0x92, 0x08, 0xD8, 0x3A, 0x0F, 0x1E, 0xCD, 0x78 ),
BYTES_TO_T_UINT_8( 0x06, 0x54, 0xF0, 0xA8, 0x2F, 0x2B, 0xCA, 0xD1 ),
BYTES_TO_T_UINT_8( 0xAE, 0x63, 0x27, 0x8A, 0xD8, 0x4B, 0xCA, 0x5B ),
BYTES_TO_T_UINT_8( 0x5E, 0x48, 0x5F, 0x4A, 0x49, 0xDE, 0xDC, 0xB2 ),
BYTES_TO_T_UINT_8( 0x11, 0x81, 0x1F, 0x88, 0x5B, 0xC5, 0x00, 0xA0 ),
BYTES_TO_T_UINT_8( 0x1A, 0x7B, 0xA5, 0x24, 0x00, 0xF7, 0x09, 0xF2 ),
BYTES_TO_T_UINT_8( 0xFD, 0x22, 0x78, 0xCF, 0xA9, 0xBF, 0xEA, 0xC0 ),
BYTES_TO_T_UINT_8( 0xEC, 0x32, 0x63, 0x56, 0x5D, 0x38, 0xDE, 0x7D ),
};
static const mbedtls_mpi_uint brainpoolP512r1_n[] = {
BYTES_TO_T_UINT_8( 0x69, 0x00, 0xA9, 0x9C, 0x82, 0x96, 0x87, 0xB5 ),
BYTES_TO_T_UINT_8( 0xDD, 0xDA, 0x5D, 0x08, 0x81, 0xD3, 0xB1, 0x1D ),
BYTES_TO_T_UINT_8( 0x47, 0x10, 0xAC, 0x7F, 0x19, 0x61, 0x86, 0x41 ),
BYTES_TO_T_UINT_8( 0x19, 0x26, 0xA9, 0x4C, 0x41, 0x5C, 0x3E, 0x55 ),
BYTES_TO_T_UINT_8( 0x70, 0x08, 0x33, 0x70, 0xCA, 0x9C, 0x63, 0xD6 ),
BYTES_TO_T_UINT_8( 0x0E, 0xD2, 0xC9, 0xB3, 0xB3, 0x8D, 0x30, 0xCB ),
BYTES_TO_T_UINT_8( 0x07, 0xFC, 0xC9, 0x33, 0xAE, 0xE6, 0xD4, 0x3F ),
BYTES_TO_T_UINT_8( 0x8B, 0xC4, 0xE9, 0xDB, 0xB8, 0x9D, 0xDD, 0xAA ),
};
#endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */
/*
* Create an MPI from embedded constants
* (assumes len is an exact multiple of sizeof mbedtls_mpi_uint)
*/
static inline void ecp_mpi_load( mbedtls_mpi *X, const mbedtls_mpi_uint *p, size_t len )
{
X->s = 1;
X->n = len / sizeof( mbedtls_mpi_uint );
X->p = (mbedtls_mpi_uint *) p;
}
/*
* Set an MPI to static value 1
*/
static inline void ecp_mpi_set1( mbedtls_mpi *X )
{
static mbedtls_mpi_uint one[] = { 1 };
X->s = 1;
X->n = 1;
X->p = one;
}
/*
* Make group available from embedded constants
*/
static int ecp_group_load( mbedtls_ecp_group *grp,
const mbedtls_mpi_uint *p, size_t plen,
const mbedtls_mpi_uint *a, size_t alen,
const mbedtls_mpi_uint *b, size_t blen,
const mbedtls_mpi_uint *gx, size_t gxlen,
const mbedtls_mpi_uint *gy, size_t gylen,
const mbedtls_mpi_uint *n, size_t nlen)
{
ecp_mpi_load( &grp->P, p, plen );
if( a != NULL )
ecp_mpi_load( &grp->A, a, alen );
ecp_mpi_load( &grp->B, b, blen );
ecp_mpi_load( &grp->N, n, nlen );
ecp_mpi_load( &grp->G.X, gx, gxlen );
ecp_mpi_load( &grp->G.Y, gy, gylen );
ecp_mpi_set1( &grp->G.Z );
grp->pbits = mbedtls_mpi_bitlen( &grp->P );
grp->nbits = mbedtls_mpi_bitlen( &grp->N );
grp->h = 1;
return( 0 );
}
#if defined(MBEDTLS_ECP_NIST_OPTIM)
/* Forward declarations */
#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
static int ecp_mod_p192( mbedtls_mpi * );
#endif
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
static int ecp_mod_p224( mbedtls_mpi * );
#endif
#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
static int ecp_mod_p256( mbedtls_mpi * );
#endif
#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
static int ecp_mod_p384( mbedtls_mpi * );
#endif
#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
static int ecp_mod_p521( mbedtls_mpi * );
#endif
#define NIST_MODP( P ) grp->modp = ecp_mod_ ## P;
#else
#define NIST_MODP( P )
#endif /* MBEDTLS_ECP_NIST_OPTIM */
/* Additional forward declarations */
#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
static int ecp_mod_p255( mbedtls_mpi * );
#endif
#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
static int ecp_mod_p448( mbedtls_mpi * );
#endif
#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
static int ecp_mod_p192k1( mbedtls_mpi * );
#endif
#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
static int ecp_mod_p224k1( mbedtls_mpi * );
#endif
#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
static int ecp_mod_p256k1( mbedtls_mpi * );
#endif
#define LOAD_GROUP_A( G ) ecp_group_load( grp, \
G ## _p, sizeof( G ## _p ), \
G ## _a, sizeof( G ## _a ), \
G ## _b, sizeof( G ## _b ), \
G ## _gx, sizeof( G ## _gx ), \
G ## _gy, sizeof( G ## _gy ), \
G ## _n, sizeof( G ## _n ) )
#define LOAD_GROUP( G ) ecp_group_load( grp, \
G ## _p, sizeof( G ## _p ), \
NULL, 0, \
G ## _b, sizeof( G ## _b ), \
G ## _gx, sizeof( G ## _gx ), \
G ## _gy, sizeof( G ## _gy ), \
G ## _n, sizeof( G ## _n ) )
#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
/*
* Specialized function for creating the Curve25519 group
*/
static int ecp_use_curve25519( mbedtls_ecp_group *grp )
{
int ret;
/* Actually ( A + 2 ) / 4 */
MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &grp->A, 16, "01DB42" ) );
/* P = 2^255 - 19 */
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &grp->P, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &grp->P, 255 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &grp->P, &grp->P, 19 ) );
grp->pbits = mbedtls_mpi_bitlen( &grp->P );
/* N = 2^252 + 27742317777372353535851937790883648493 */
MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &grp->N, 16,
"14DEF9DEA2F79CD65812631A5CF5D3ED" ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_set_bit( &grp->N, 252, 1 ) );
/* Y intentionally not set, since we use x/z coordinates.
* This is used as a marker to identify Montgomery curves! */
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &grp->G.X, 9 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &grp->G.Z, 1 ) );
mbedtls_mpi_free( &grp->G.Y );
/* Actually, the required msb for private keys */
grp->nbits = 254;
cleanup:
if( ret != 0 )
mbedtls_ecp_group_free( grp );
return( ret );
}
#endif /* MBEDTLS_ECP_DP_CURVE25519_ENABLED */
#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
/*
* Specialized function for creating the Curve448 group
*/
static int ecp_use_curve448( mbedtls_ecp_group *grp )
{
mbedtls_mpi Ns;
int ret;
mbedtls_mpi_init( &Ns );
/* Actually ( A + 2 ) / 4 */
MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &grp->A, 16, "98AA" ) );
/* P = 2^448 - 2^224 - 1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &grp->P, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &grp->P, 224 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &grp->P, &grp->P, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &grp->P, 224 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &grp->P, &grp->P, 1 ) );
grp->pbits = mbedtls_mpi_bitlen( &grp->P );
/* Y intentionally not set, since we use x/z coordinates.
* This is used as a marker to identify Montgomery curves! */
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &grp->G.X, 5 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &grp->G.Z, 1 ) );
mbedtls_mpi_free( &grp->G.Y );
/* N = 2^446 - 13818066809895115352007386748515426880336692474882178609894547503885 */
MBEDTLS_MPI_CHK( mbedtls_mpi_set_bit( &grp->N, 446, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &Ns, 16,
"8335DC163BB124B65129C96FDE933D8D723A70AADC873D6D54A7BB0D" ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &grp->N, &grp->N, &Ns ) );
/* Actually, the required msb for private keys */
grp->nbits = 447;
cleanup:
mbedtls_mpi_free( &Ns );
if( ret != 0 )
mbedtls_ecp_group_free( grp );
return( ret );
}
#endif /* MBEDTLS_ECP_DP_CURVE448_ENABLED */
/*
* Set a group using well-known domain parameters
*/
int mbedtls_ecp_group_load( mbedtls_ecp_group *grp, mbedtls_ecp_group_id id )
{
ECP_VALIDATE_RET( grp != NULL );
mbedtls_ecp_group_free( grp );
grp->id = id;
switch( id )
{
#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
case MBEDTLS_ECP_DP_SECP192R1:
NIST_MODP( p192 );
return( LOAD_GROUP( secp192r1 ) );
#endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
case MBEDTLS_ECP_DP_SECP224R1:
NIST_MODP( p224 );
return( LOAD_GROUP( secp224r1 ) );
#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
case MBEDTLS_ECP_DP_SECP256R1:
NIST_MODP( p256 );
return( LOAD_GROUP( secp256r1 ) );
#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
case MBEDTLS_ECP_DP_SECP384R1:
NIST_MODP( p384 );
return( LOAD_GROUP( secp384r1 ) );
#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
case MBEDTLS_ECP_DP_SECP521R1:
NIST_MODP( p521 );
return( LOAD_GROUP( secp521r1 ) );
#endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
case MBEDTLS_ECP_DP_SECP192K1:
grp->modp = ecp_mod_p192k1;
return( LOAD_GROUP_A( secp192k1 ) );
#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
case MBEDTLS_ECP_DP_SECP224K1:
grp->modp = ecp_mod_p224k1;
return( LOAD_GROUP_A( secp224k1 ) );
#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
case MBEDTLS_ECP_DP_SECP256K1:
grp->modp = ecp_mod_p256k1;
return( LOAD_GROUP_A( secp256k1 ) );
#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
case MBEDTLS_ECP_DP_BP256R1:
return( LOAD_GROUP_A( brainpoolP256r1 ) );
#endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
case MBEDTLS_ECP_DP_BP384R1:
return( LOAD_GROUP_A( brainpoolP384r1 ) );
#endif /* MBEDTLS_ECP_DP_BP384R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
case MBEDTLS_ECP_DP_BP512R1:
return( LOAD_GROUP_A( brainpoolP512r1 ) );
#endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
case MBEDTLS_ECP_DP_CURVE25519:
grp->modp = ecp_mod_p255;
return( ecp_use_curve25519( grp ) );
#endif /* MBEDTLS_ECP_DP_CURVE25519_ENABLED */
#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
case MBEDTLS_ECP_DP_CURVE448:
grp->modp = ecp_mod_p448;
return( ecp_use_curve448( grp ) );
#endif /* MBEDTLS_ECP_DP_CURVE448_ENABLED */
default:
mbedtls_ecp_group_free( grp );
return( MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE );
}
}
#if defined(MBEDTLS_ECP_NIST_OPTIM)
/*
* Fast reduction modulo the primes used by the NIST curves.
*
* These functions are critical for speed, but not needed for correct
* operations. So, we make the choice to heavily rely on the internals of our
* bignum library, which creates a tight coupling between these functions and
* our MPI implementation. However, the coupling between the ECP module and
* MPI remains loose, since these functions can be deactivated at will.
*/
#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
/*
* Compared to the way things are presented in FIPS 186-3 D.2,
* we proceed in columns, from right (least significant chunk) to left,
* adding chunks to N in place, and keeping a carry for the next chunk.
* This avoids moving things around in memory, and uselessly adding zeros,
* compared to the more straightforward, line-oriented approach.
*
* For this prime we need to handle data in chunks of 64 bits.
* Since this is always a multiple of our basic mbedtls_mpi_uint, we can
* use a mbedtls_mpi_uint * to designate such a chunk, and small loops to handle it.
*/
/* Add 64-bit chunks (dst += src) and update carry */
static inline void add64( mbedtls_mpi_uint *dst, mbedtls_mpi_uint *src, mbedtls_mpi_uint *carry )
{
unsigned char i;
mbedtls_mpi_uint c = 0;
for( i = 0; i < 8 / sizeof( mbedtls_mpi_uint ); i++, dst++, src++ )
{
*dst += c; c = ( *dst < c );
*dst += *src; c += ( *dst < *src );
}
*carry += c;
}
/* Add carry to a 64-bit chunk and update carry */
static inline void carry64( mbedtls_mpi_uint *dst, mbedtls_mpi_uint *carry )
{
unsigned char i;
for( i = 0; i < 8 / sizeof( mbedtls_mpi_uint ); i++, dst++ )
{
*dst += *carry;
*carry = ( *dst < *carry );
}
}
#define WIDTH 8 / sizeof( mbedtls_mpi_uint )
#define A( i ) N->p + i * WIDTH
#define ADD( i ) add64( p, A( i ), &c )
#define NEXT p += WIDTH; carry64( p, &c )
#define LAST p += WIDTH; *p = c; while( ++p < end ) *p = 0
/*
* Fast quasi-reduction modulo p192 (FIPS 186-3 D.2.1)
*/
static int ecp_mod_p192( mbedtls_mpi *N )
{
int ret;
mbedtls_mpi_uint c = 0;
mbedtls_mpi_uint *p, *end;
/* Make sure we have enough blocks so that A(5) is legal */
MBEDTLS_MPI_CHK( mbedtls_mpi_grow( N, 6 * WIDTH ) );
p = N->p;
end = p + N->n;
ADD( 3 ); ADD( 5 ); NEXT; // A0 += A3 + A5
ADD( 3 ); ADD( 4 ); ADD( 5 ); NEXT; // A1 += A3 + A4 + A5
ADD( 4 ); ADD( 5 ); LAST; // A2 += A4 + A5
cleanup:
return( ret );
}
#undef WIDTH
#undef A
#undef ADD
#undef NEXT
#undef LAST
#endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
/*
* The reader is advised to first understand ecp_mod_p192() since the same
* general structure is used here, but with additional complications:
* (1) chunks of 32 bits, and (2) subtractions.
*/
/*
* For these primes, we need to handle data in chunks of 32 bits.
* This makes it more complicated if we use 64 bits limbs in MPI,
* which prevents us from using a uniform access method as for p192.
*
* So, we define a mini abstraction layer to access 32 bit chunks,
* load them in 'cur' for work, and store them back from 'cur' when done.
*
* While at it, also define the size of N in terms of 32-bit chunks.
*/
#define LOAD32 cur = A( i );
#if defined(MBEDTLS_HAVE_INT32) /* 32 bit */
#define MAX32 N->n
#define A( j ) N->p[j]
#define STORE32 N->p[i] = cur;
#else /* 64-bit */
#define MAX32 N->n * 2
#define A( j ) j % 2 ? (uint32_t)( N->p[j/2] >> 32 ) : (uint32_t)( N->p[j/2] )
#define STORE32 \
if( i % 2 ) { \
N->p[i/2] &= 0x00000000FFFFFFFF; \
N->p[i/2] |= ((mbedtls_mpi_uint) cur) << 32; \
} else { \
N->p[i/2] &= 0xFFFFFFFF00000000; \
N->p[i/2] |= (mbedtls_mpi_uint) cur; \
}
#endif /* sizeof( mbedtls_mpi_uint ) */
/*
* Helpers for addition and subtraction of chunks, with signed carry.
*/
static inline void add32( uint32_t *dst, uint32_t src, signed char *carry )
{
*dst += src;
*carry += ( *dst < src );
}
static inline void sub32( uint32_t *dst, uint32_t src, signed char *carry )
{
*carry -= ( *dst < src );
*dst -= src;
}
#define ADD( j ) add32( &cur, A( j ), &c );
#define SUB( j ) sub32( &cur, A( j ), &c );
/*
* Helpers for the main 'loop'
* (see fix_negative for the motivation of C)
*/
#define INIT( b ) \
int ret; \
signed char c = 0, cc; \
uint32_t cur; \
size_t i = 0, bits = b; \
mbedtls_mpi C; \
mbedtls_mpi_uint Cp[ b / 8 / sizeof( mbedtls_mpi_uint) + 1 ]; \
\
C.s = 1; \
C.n = b / 8 / sizeof( mbedtls_mpi_uint) + 1; \
C.p = Cp; \
memset( Cp, 0, C.n * sizeof( mbedtls_mpi_uint ) ); \
\
MBEDTLS_MPI_CHK( mbedtls_mpi_grow( N, b * 2 / 8 / sizeof( mbedtls_mpi_uint ) ) ); \
LOAD32;
#define NEXT \
STORE32; i++; LOAD32; \
cc = c; c = 0; \
if( cc < 0 ) \
sub32( &cur, -cc, &c ); \
else \
add32( &cur, cc, &c ); \
#define LAST \
STORE32; i++; \
cur = c > 0 ? c : 0; STORE32; \
cur = 0; while( ++i < MAX32 ) { STORE32; } \
if( c < 0 ) fix_negative( N, c, &C, bits );
/*
* If the result is negative, we get it in the form
* c * 2^(bits + 32) + N, with c negative and N positive shorter than 'bits'
*/
static inline int fix_negative( mbedtls_mpi *N, signed char c, mbedtls_mpi *C, size_t bits )
{
int ret;
/* C = - c * 2^(bits + 32) */
#if !defined(MBEDTLS_HAVE_INT64)
((void) bits);
#else
if( bits == 224 )
C->p[ C->n - 1 ] = ((mbedtls_mpi_uint) -c) << 32;
else
#endif
C->p[ C->n - 1 ] = (mbedtls_mpi_uint) -c;
/* N = - ( C - N ) */
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_abs( N, C, N ) );
N->s = -1;
cleanup:
return( ret );
}
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
/*
* Fast quasi-reduction modulo p224 (FIPS 186-3 D.2.2)
*/
static int ecp_mod_p224( mbedtls_mpi *N )
{
INIT( 224 );
SUB( 7 ); SUB( 11 ); NEXT; // A0 += -A7 - A11
SUB( 8 ); SUB( 12 ); NEXT; // A1 += -A8 - A12
SUB( 9 ); SUB( 13 ); NEXT; // A2 += -A9 - A13
SUB( 10 ); ADD( 7 ); ADD( 11 ); NEXT; // A3 += -A10 + A7 + A11
SUB( 11 ); ADD( 8 ); ADD( 12 ); NEXT; // A4 += -A11 + A8 + A12
SUB( 12 ); ADD( 9 ); ADD( 13 ); NEXT; // A5 += -A12 + A9 + A13
SUB( 13 ); ADD( 10 ); LAST; // A6 += -A13 + A10
cleanup:
return( ret );
}
#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
/*
* Fast quasi-reduction modulo p256 (FIPS 186-3 D.2.3)
*/
static int ecp_mod_p256( mbedtls_mpi *N )
{
INIT( 256 );
ADD( 8 ); ADD( 9 );
SUB( 11 ); SUB( 12 ); SUB( 13 ); SUB( 14 ); NEXT; // A0
ADD( 9 ); ADD( 10 );
SUB( 12 ); SUB( 13 ); SUB( 14 ); SUB( 15 ); NEXT; // A1
ADD( 10 ); ADD( 11 );
SUB( 13 ); SUB( 14 ); SUB( 15 ); NEXT; // A2
ADD( 11 ); ADD( 11 ); ADD( 12 ); ADD( 12 ); ADD( 13 );
SUB( 15 ); SUB( 8 ); SUB( 9 ); NEXT; // A3
ADD( 12 ); ADD( 12 ); ADD( 13 ); ADD( 13 ); ADD( 14 );
SUB( 9 ); SUB( 10 ); NEXT; // A4
ADD( 13 ); ADD( 13 ); ADD( 14 ); ADD( 14 ); ADD( 15 );
SUB( 10 ); SUB( 11 ); NEXT; // A5
ADD( 14 ); ADD( 14 ); ADD( 15 ); ADD( 15 ); ADD( 14 ); ADD( 13 );
SUB( 8 ); SUB( 9 ); NEXT; // A6
ADD( 15 ); ADD( 15 ); ADD( 15 ); ADD( 8 );
SUB( 10 ); SUB( 11 ); SUB( 12 ); SUB( 13 ); LAST; // A7
cleanup:
return( ret );
}
#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
/*
* Fast quasi-reduction modulo p384 (FIPS 186-3 D.2.4)
*/
static int ecp_mod_p384( mbedtls_mpi *N )
{
INIT( 384 );
ADD( 12 ); ADD( 21 ); ADD( 20 );
SUB( 23 ); NEXT; // A0
ADD( 13 ); ADD( 22 ); ADD( 23 );
SUB( 12 ); SUB( 20 ); NEXT; // A2
ADD( 14 ); ADD( 23 );
SUB( 13 ); SUB( 21 ); NEXT; // A2
ADD( 15 ); ADD( 12 ); ADD( 20 ); ADD( 21 );
SUB( 14 ); SUB( 22 ); SUB( 23 ); NEXT; // A3
ADD( 21 ); ADD( 21 ); ADD( 16 ); ADD( 13 ); ADD( 12 ); ADD( 20 ); ADD( 22 );
SUB( 15 ); SUB( 23 ); SUB( 23 ); NEXT; // A4
ADD( 22 ); ADD( 22 ); ADD( 17 ); ADD( 14 ); ADD( 13 ); ADD( 21 ); ADD( 23 );
SUB( 16 ); NEXT; // A5
ADD( 23 ); ADD( 23 ); ADD( 18 ); ADD( 15 ); ADD( 14 ); ADD( 22 );
SUB( 17 ); NEXT; // A6
ADD( 19 ); ADD( 16 ); ADD( 15 ); ADD( 23 );
SUB( 18 ); NEXT; // A7
ADD( 20 ); ADD( 17 ); ADD( 16 );
SUB( 19 ); NEXT; // A8
ADD( 21 ); ADD( 18 ); ADD( 17 );
SUB( 20 ); NEXT; // A9
ADD( 22 ); ADD( 19 ); ADD( 18 );
SUB( 21 ); NEXT; // A10
ADD( 23 ); ADD( 20 ); ADD( 19 );
SUB( 22 ); LAST; // A11
cleanup:
return( ret );
}
#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */
#undef A
#undef LOAD32
#undef STORE32
#undef MAX32
#undef INIT
#undef NEXT
#undef LAST
#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED ||
MBEDTLS_ECP_DP_SECP256R1_ENABLED ||
MBEDTLS_ECP_DP_SECP384R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
/*
* Here we have an actual Mersenne prime, so things are more straightforward.
* However, chunks are aligned on a 'weird' boundary (521 bits).
*/
/* Size of p521 in terms of mbedtls_mpi_uint */
#define P521_WIDTH ( 521 / 8 / sizeof( mbedtls_mpi_uint ) + 1 )
/* Bits to keep in the most significant mbedtls_mpi_uint */
#define P521_MASK 0x01FF
/*
* Fast quasi-reduction modulo p521 (FIPS 186-3 D.2.5)
* Write N as A1 + 2^521 A0, return A0 + A1
*/
static int ecp_mod_p521( mbedtls_mpi *N )
{
int ret;
size_t i;
mbedtls_mpi M;
mbedtls_mpi_uint Mp[P521_WIDTH + 1];
/* Worst case for the size of M is when mbedtls_mpi_uint is 16 bits:
* we need to hold bits 513 to 1056, which is 34 limbs, that is
* P521_WIDTH + 1. Otherwise P521_WIDTH is enough. */
if( N->n < P521_WIDTH )
return( 0 );
/* M = A1 */
M.s = 1;
M.n = N->n - ( P521_WIDTH - 1 );
if( M.n > P521_WIDTH + 1 )
M.n = P521_WIDTH + 1;
M.p = Mp;
memcpy( Mp, N->p + P521_WIDTH - 1, M.n * sizeof( mbedtls_mpi_uint ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &M, 521 % ( 8 * sizeof( mbedtls_mpi_uint ) ) ) );
/* N = A0 */
N->p[P521_WIDTH - 1] &= P521_MASK;
for( i = P521_WIDTH; i < N->n; i++ )
N->p[i] = 0;
/* N = A0 + A1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_add_abs( N, N, &M ) );
cleanup:
return( ret );
}
#undef P521_WIDTH
#undef P521_MASK
#endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */
#endif /* MBEDTLS_ECP_NIST_OPTIM */
#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
/* Size of p255 in terms of mbedtls_mpi_uint */
#define P255_WIDTH ( 255 / 8 / sizeof( mbedtls_mpi_uint ) + 1 )
/*
* Fast quasi-reduction modulo p255 = 2^255 - 19
* Write N as A0 + 2^255 A1, return A0 + 19 * A1
*/
static int ecp_mod_p255( mbedtls_mpi *N )
{
int ret;
size_t i;
mbedtls_mpi M;
mbedtls_mpi_uint Mp[P255_WIDTH + 2];
if( N->n < P255_WIDTH )
return( 0 );
/* M = A1 */
M.s = 1;
M.n = N->n - ( P255_WIDTH - 1 );
if( M.n > P255_WIDTH + 1 )
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
M.p = Mp;
memset( Mp, 0, sizeof Mp );
memcpy( Mp, N->p + P255_WIDTH - 1, M.n * sizeof( mbedtls_mpi_uint ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &M, 255 % ( 8 * sizeof( mbedtls_mpi_uint ) ) ) );
M.n++; /* Make room for multiplication by 19 */
/* N = A0 */
MBEDTLS_MPI_CHK( mbedtls_mpi_set_bit( N, 255, 0 ) );
for( i = P255_WIDTH; i < N->n; i++ )
N->p[i] = 0;
/* N = A0 + 19 * A1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_int( &M, &M, 19 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_abs( N, N, &M ) );
cleanup:
return( ret );
}
#endif /* MBEDTLS_ECP_DP_CURVE25519_ENABLED */
#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
/* Size of p448 in terms of mbedtls_mpi_uint */
#define P448_WIDTH ( 448 / 8 / sizeof( mbedtls_mpi_uint ) )
/* Number of limbs fully occupied by 2^224 (max), and limbs used by it (min) */
#define DIV_ROUND_UP( X, Y ) ( ( ( X ) + ( Y ) - 1 ) / ( Y ) )
#define P224_WIDTH_MIN ( 28 / sizeof( mbedtls_mpi_uint ) )
#define P224_WIDTH_MAX DIV_ROUND_UP( 28, sizeof( mbedtls_mpi_uint ) )
#define P224_UNUSED_BITS ( ( P224_WIDTH_MAX * sizeof( mbedtls_mpi_uint ) * 8 ) - 224 )
/*
* Fast quasi-reduction modulo p448 = 2^448 - 2^224 - 1
* Write N as A0 + 2^448 A1 and A1 as B0 + 2^224 B1, and return
* A0 + A1 + B1 + (B0 + B1) * 2^224. This is different to the reference
* implementation of Curve448, which uses its own special 56-bit limbs rather
* than a generic bignum library. We could squeeze some extra speed out on
* 32-bit machines by splitting N up into 32-bit limbs and doing the
* arithmetic using the limbs directly as we do for the NIST primes above,
* but for 64-bit targets it should use half the number of operations if we do
* the reduction with 224-bit limbs, since mpi_add_mpi will then use 64-bit adds.
*/
static int ecp_mod_p448( mbedtls_mpi *N )
{
int ret;
size_t i;
mbedtls_mpi M, Q;
mbedtls_mpi_uint Mp[P448_WIDTH + 1], Qp[P448_WIDTH];
if( N->n <= P448_WIDTH )
return( 0 );
/* M = A1 */
M.s = 1;
M.n = N->n - ( P448_WIDTH );
if( M.n > P448_WIDTH )
/* Shouldn't be called with N larger than 2^896! */
return( MBEDTLS_ERR_ECP_BAD_INPUT_DATA );
M.p = Mp;
memset( Mp, 0, sizeof( Mp ) );
memcpy( Mp, N->p + P448_WIDTH, M.n * sizeof( mbedtls_mpi_uint ) );
/* N = A0 */
for( i = P448_WIDTH; i < N->n; i++ )
N->p[i] = 0;
/* N += A1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( N, N, &M ) );
/* Q = B1, N += B1 */
Q = M;
Q.p = Qp;
memcpy( Qp, Mp, sizeof( Qp ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &Q, 224 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( N, N, &Q ) );
/* M = (B0 + B1) * 2^224, N += M */
if( sizeof( mbedtls_mpi_uint ) > 4 )
Mp[P224_WIDTH_MIN] &= ( (mbedtls_mpi_uint)-1 ) >> ( P224_UNUSED_BITS );
for( i = P224_WIDTH_MAX; i < M.n; ++i )
Mp[i] = 0;
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &M, &M, &Q ) );
M.n = P448_WIDTH + 1; /* Make room for shifted carry bit from the addition */
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_l( &M, 224 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( N, N, &M ) );
cleanup:
return( ret );
}
#endif /* MBEDTLS_ECP_DP_CURVE448_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
/*
* Fast quasi-reduction modulo P = 2^s - R,
* with R about 33 bits, used by the Koblitz curves.
*
* Write N as A0 + 2^224 A1, return A0 + R * A1.
* Actually do two passes, since R is big.
*/
#define P_KOBLITZ_MAX ( 256 / 8 / sizeof( mbedtls_mpi_uint ) ) // Max limbs in P
#define P_KOBLITZ_R ( 8 / sizeof( mbedtls_mpi_uint ) ) // Limbs in R
static inline int ecp_mod_koblitz( mbedtls_mpi *N, mbedtls_mpi_uint *Rp, size_t p_limbs,
size_t adjust, size_t shift, mbedtls_mpi_uint mask )
{
int ret;
size_t i;
mbedtls_mpi M, R;
mbedtls_mpi_uint Mp[P_KOBLITZ_MAX + P_KOBLITZ_R + 1];
if( N->n < p_limbs )
return( 0 );
/* Init R */
R.s = 1;
R.p = Rp;
R.n = P_KOBLITZ_R;
/* Common setup for M */
M.s = 1;
M.p = Mp;
/* M = A1 */
M.n = N->n - ( p_limbs - adjust );
if( M.n > p_limbs + adjust )
M.n = p_limbs + adjust;
memset( Mp, 0, sizeof Mp );
memcpy( Mp, N->p + p_limbs - adjust, M.n * sizeof( mbedtls_mpi_uint ) );
if( shift != 0 )
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &M, shift ) );
M.n += R.n; /* Make room for multiplication by R */
/* N = A0 */
if( mask != 0 )
N->p[p_limbs - 1] &= mask;
for( i = p_limbs; i < N->n; i++ )
N->p[i] = 0;
/* N = A0 + R * A1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &M, &M, &R ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_abs( N, N, &M ) );
/* Second pass */
/* M = A1 */
M.n = N->n - ( p_limbs - adjust );
if( M.n > p_limbs + adjust )
M.n = p_limbs + adjust;
memset( Mp, 0, sizeof Mp );
memcpy( Mp, N->p + p_limbs - adjust, M.n * sizeof( mbedtls_mpi_uint ) );
if( shift != 0 )
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &M, shift ) );
M.n += R.n; /* Make room for multiplication by R */
/* N = A0 */
if( mask != 0 )
N->p[p_limbs - 1] &= mask;
for( i = p_limbs; i < N->n; i++ )
N->p[i] = 0;
/* N = A0 + R * A1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &M, &M, &R ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_abs( N, N, &M ) );
cleanup:
return( ret );
}
#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED) ||
MBEDTLS_ECP_DP_SECP224K1_ENABLED) ||
MBEDTLS_ECP_DP_SECP256K1_ENABLED) */
#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
/*
* Fast quasi-reduction modulo p192k1 = 2^192 - R,
* with R = 2^32 + 2^12 + 2^8 + 2^7 + 2^6 + 2^3 + 1 = 0x0100001119
*/
static int ecp_mod_p192k1( mbedtls_mpi *N )
{
static mbedtls_mpi_uint Rp[] = {
BYTES_TO_T_UINT_8( 0xC9, 0x11, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00 ) };
return( ecp_mod_koblitz( N, Rp, 192 / 8 / sizeof( mbedtls_mpi_uint ), 0, 0, 0 ) );
}
#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
/*
* Fast quasi-reduction modulo p224k1 = 2^224 - R,
* with R = 2^32 + 2^12 + 2^11 + 2^9 + 2^7 + 2^4 + 2 + 1 = 0x0100001A93
*/
static int ecp_mod_p224k1( mbedtls_mpi *N )
{
static mbedtls_mpi_uint Rp[] = {
BYTES_TO_T_UINT_8( 0x93, 0x1A, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00 ) };
#if defined(MBEDTLS_HAVE_INT64)
return( ecp_mod_koblitz( N, Rp, 4, 1, 32, 0xFFFFFFFF ) );
#else
return( ecp_mod_koblitz( N, Rp, 224 / 8 / sizeof( mbedtls_mpi_uint ), 0, 0, 0 ) );
#endif
}
#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
/*
* Fast quasi-reduction modulo p256k1 = 2^256 - R,
* with R = 2^32 + 2^9 + 2^8 + 2^7 + 2^6 + 2^4 + 1 = 0x01000003D1
*/
static int ecp_mod_p256k1( mbedtls_mpi *N )
{
static mbedtls_mpi_uint Rp[] = {
BYTES_TO_T_UINT_8( 0xD1, 0x03, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00 ) };
return( ecp_mod_koblitz( N, Rp, 256 / 8 / sizeof( mbedtls_mpi_uint ), 0, 0, 0 ) );
}
#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */
#endif /* !MBEDTLS_ECP_ALT */
#endif /* MBEDTLS_ECP_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/ecp_curves.c | C | apache-2.0 | 57,690 |
/*
* Entropy accumulator implementation
*
* Copyright (C) 2006-2016, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_ENTROPY_C)
#if defined(MBEDTLS_TEST_NULL_ENTROPY)
#warning "**** WARNING! MBEDTLS_TEST_NULL_ENTROPY defined! "
#warning "**** THIS BUILD HAS NO DEFINED ENTROPY SOURCES "
#warning "**** THIS BUILD IS *NOT* SUITABLE FOR PRODUCTION USE "
#endif
#include "mbedtls/entropy.h"
#include "mbedtls/entropy_poll.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_FS_IO)
#include <stdio.h>
#endif
#if defined(MBEDTLS_ENTROPY_NV_SEED)
#include "mbedtls/platform.h"
#endif
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if defined(MBEDTLS_HAVEGE_C)
#include "mbedtls/havege.h"
#endif
#define ENTROPY_MAX_LOOP 256 /**< Maximum amount to loop before error */
void mbedtls_entropy_init( mbedtls_entropy_context *ctx )
{
ctx->source_count = 0;
memset( ctx->source, 0, sizeof( ctx->source ) );
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_init( &ctx->mutex );
#endif
ctx->accumulator_started = 0;
#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
mbedtls_sha512_init( &ctx->accumulator );
#else
mbedtls_sha256_init( &ctx->accumulator );
#endif
#if defined(MBEDTLS_HAVEGE_C)
mbedtls_havege_init( &ctx->havege_data );
#endif
/* Reminder: Update ENTROPY_HAVE_STRONG in the test files
* when adding more strong entropy sources here. */
#if defined(MBEDTLS_TEST_NULL_ENTROPY)
mbedtls_entropy_add_source( ctx, mbedtls_null_entropy_poll, NULL,
1, MBEDTLS_ENTROPY_SOURCE_STRONG );
#endif
#if !defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES)
#if !defined(MBEDTLS_NO_PLATFORM_ENTROPY)
mbedtls_entropy_add_source( ctx, mbedtls_platform_entropy_poll, NULL,
MBEDTLS_ENTROPY_MIN_PLATFORM,
MBEDTLS_ENTROPY_SOURCE_STRONG );
#endif
#if defined(MBEDTLS_TIMING_C)
mbedtls_entropy_add_source( ctx, mbedtls_hardclock_poll, NULL,
MBEDTLS_ENTROPY_MIN_HARDCLOCK,
MBEDTLS_ENTROPY_SOURCE_WEAK );
#endif
#if defined(MBEDTLS_HAVEGE_C)
mbedtls_entropy_add_source( ctx, mbedtls_havege_poll, &ctx->havege_data,
MBEDTLS_ENTROPY_MIN_HAVEGE,
MBEDTLS_ENTROPY_SOURCE_STRONG );
#endif
#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
mbedtls_entropy_add_source( ctx, mbedtls_hardware_poll, NULL,
MBEDTLS_ENTROPY_MIN_HARDWARE,
MBEDTLS_ENTROPY_SOURCE_STRONG );
#endif
#if defined(MBEDTLS_ENTROPY_NV_SEED)
mbedtls_entropy_add_source( ctx, mbedtls_nv_seed_poll, NULL,
MBEDTLS_ENTROPY_BLOCK_SIZE,
MBEDTLS_ENTROPY_SOURCE_STRONG );
ctx->initial_entropy_run = 0;
#endif
#endif /* MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES */
}
void mbedtls_entropy_free( mbedtls_entropy_context *ctx )
{
#if defined(MBEDTLS_HAVEGE_C)
mbedtls_havege_free( &ctx->havege_data );
#endif
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_free( &ctx->mutex );
#endif
#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
mbedtls_sha512_free( &ctx->accumulator );
#else
mbedtls_sha256_free( &ctx->accumulator );
#endif
#if defined(MBEDTLS_ENTROPY_NV_SEED)
ctx->initial_entropy_run = 0;
#endif
ctx->source_count = 0;
mbedtls_platform_zeroize( ctx->source, sizeof( ctx->source ) );
ctx->accumulator_started = 0;
}
int mbedtls_entropy_add_source( mbedtls_entropy_context *ctx,
mbedtls_entropy_f_source_ptr f_source, void *p_source,
size_t threshold, int strong )
{
int idx, ret = 0;
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
idx = ctx->source_count;
if( idx >= MBEDTLS_ENTROPY_MAX_SOURCES )
{
ret = MBEDTLS_ERR_ENTROPY_MAX_SOURCES;
goto exit;
}
ctx->source[idx].f_source = f_source;
ctx->source[idx].p_source = p_source;
ctx->source[idx].threshold = threshold;
ctx->source[idx].strong = strong;
ctx->source_count++;
exit:
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
/*
* Entropy accumulator update
*/
static int entropy_update( mbedtls_entropy_context *ctx, unsigned char source_id,
const unsigned char *data, size_t len )
{
unsigned char header[2];
unsigned char tmp[MBEDTLS_ENTROPY_BLOCK_SIZE];
size_t use_len = len;
const unsigned char *p = data;
int ret = 0;
if( use_len > MBEDTLS_ENTROPY_BLOCK_SIZE )
{
#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
if( ( ret = mbedtls_sha512_ret( data, len, tmp, 0 ) ) != 0 )
goto cleanup;
#else
if( ( ret = mbedtls_sha256_ret( data, len, tmp, 0 ) ) != 0 )
goto cleanup;
#endif
p = tmp;
use_len = MBEDTLS_ENTROPY_BLOCK_SIZE;
}
header[0] = source_id;
header[1] = use_len & 0xFF;
/*
* Start the accumulator if this has not already happened. Note that
* it is sufficient to start the accumulator here only because all calls to
* gather entropy eventually execute this code.
*/
#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
if( ctx->accumulator_started == 0 &&
( ret = mbedtls_sha512_starts_ret( &ctx->accumulator, 0 ) ) != 0 )
goto cleanup;
else
ctx->accumulator_started = 1;
if( ( ret = mbedtls_sha512_update_ret( &ctx->accumulator, header, 2 ) ) != 0 )
goto cleanup;
ret = mbedtls_sha512_update_ret( &ctx->accumulator, p, use_len );
#else
if( ctx->accumulator_started == 0 &&
( ret = mbedtls_sha256_starts_ret( &ctx->accumulator, 0 ) ) != 0 )
goto cleanup;
else
ctx->accumulator_started = 1;
if( ( ret = mbedtls_sha256_update_ret( &ctx->accumulator, header, 2 ) ) != 0 )
goto cleanup;
ret = mbedtls_sha256_update_ret( &ctx->accumulator, p, use_len );
#endif
cleanup:
mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
return( ret );
}
int mbedtls_entropy_update_manual( mbedtls_entropy_context *ctx,
const unsigned char *data, size_t len )
{
int ret;
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
ret = entropy_update( ctx, MBEDTLS_ENTROPY_SOURCE_MANUAL, data, len );
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
/*
* Run through the different sources to add entropy to our accumulator
*/
static int entropy_gather_internal( mbedtls_entropy_context *ctx )
{
int ret, i, have_one_strong = 0;
unsigned char buf[MBEDTLS_ENTROPY_MAX_GATHER];
size_t olen;
if( ctx->source_count == 0 )
return( MBEDTLS_ERR_ENTROPY_NO_SOURCES_DEFINED );
/*
* Run through our entropy sources
*/
for( i = 0; i < ctx->source_count; i++ )
{
if( ctx->source[i].strong == MBEDTLS_ENTROPY_SOURCE_STRONG )
have_one_strong = 1;
olen = 0;
if( ( ret = ctx->source[i].f_source( ctx->source[i].p_source,
buf, MBEDTLS_ENTROPY_MAX_GATHER, &olen ) ) != 0 )
{
goto cleanup;
}
/*
* Add if we actually gathered something
*/
if( olen > 0 )
{
if( ( ret = entropy_update( ctx, (unsigned char) i,
buf, olen ) ) != 0 )
return( ret );
ctx->source[i].size += olen;
}
}
if( have_one_strong == 0 )
ret = MBEDTLS_ERR_ENTROPY_NO_STRONG_SOURCE;
cleanup:
mbedtls_platform_zeroize( buf, sizeof( buf ) );
return( ret );
}
/*
* Thread-safe wrapper for entropy_gather_internal()
*/
int mbedtls_entropy_gather( mbedtls_entropy_context *ctx )
{
int ret;
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
ret = entropy_gather_internal( ctx );
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
int mbedtls_entropy_func( void *data, unsigned char *output, size_t len )
{
int ret, count = 0, i, done;
mbedtls_entropy_context *ctx = (mbedtls_entropy_context *) data;
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
if( len > MBEDTLS_ENTROPY_BLOCK_SIZE )
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
#if defined(MBEDTLS_ENTROPY_NV_SEED)
/* Update the NV entropy seed before generating any entropy for outside
* use.
*/
if( ctx->initial_entropy_run == 0 )
{
ctx->initial_entropy_run = 1;
if( ( ret = mbedtls_entropy_update_nv_seed( ctx ) ) != 0 )
return( ret );
}
#endif
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
/*
* Always gather extra entropy before a call
*/
do
{
if( count++ > ENTROPY_MAX_LOOP )
{
ret = MBEDTLS_ERR_ENTROPY_SOURCE_FAILED;
goto exit;
}
if( ( ret = entropy_gather_internal( ctx ) ) != 0 )
goto exit;
done = 1;
for( i = 0; i < ctx->source_count; i++ )
if( ctx->source[i].size < ctx->source[i].threshold )
done = 0;
}
while( ! done );
memset( buf, 0, MBEDTLS_ENTROPY_BLOCK_SIZE );
#if defined(MBEDTLS_ENTROPY_SHA512_ACCUMULATOR)
/*
* Note that at this stage it is assumed that the accumulator was started
* in a previous call to entropy_update(). If this is not guaranteed, the
* code below will fail.
*/
if( ( ret = mbedtls_sha512_finish_ret( &ctx->accumulator, buf ) ) != 0 )
goto exit;
/*
* Reset accumulator and counters and recycle existing entropy
*/
mbedtls_sha512_free( &ctx->accumulator );
mbedtls_sha512_init( &ctx->accumulator );
if( ( ret = mbedtls_sha512_starts_ret( &ctx->accumulator, 0 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha512_update_ret( &ctx->accumulator, buf,
MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 )
goto exit;
/*
* Perform second SHA-512 on entropy
*/
if( ( ret = mbedtls_sha512_ret( buf, MBEDTLS_ENTROPY_BLOCK_SIZE,
buf, 0 ) ) != 0 )
goto exit;
#else /* MBEDTLS_ENTROPY_SHA512_ACCUMULATOR */
if( ( ret = mbedtls_sha256_finish_ret( &ctx->accumulator, buf ) ) != 0 )
goto exit;
/*
* Reset accumulator and counters and recycle existing entropy
*/
mbedtls_sha256_free( &ctx->accumulator );
mbedtls_sha256_init( &ctx->accumulator );
if( ( ret = mbedtls_sha256_starts_ret( &ctx->accumulator, 0 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha256_update_ret( &ctx->accumulator, buf,
MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 )
goto exit;
/*
* Perform second SHA-256 on entropy
*/
if( ( ret = mbedtls_sha256_ret( buf, MBEDTLS_ENTROPY_BLOCK_SIZE,
buf, 0 ) ) != 0 )
goto exit;
#endif /* MBEDTLS_ENTROPY_SHA512_ACCUMULATOR */
for( i = 0; i < ctx->source_count; i++ )
ctx->source[i].size = 0;
memcpy( output, buf, len );
ret = 0;
exit:
mbedtls_platform_zeroize( buf, sizeof( buf ) );
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
#if defined(MBEDTLS_ENTROPY_NV_SEED)
int mbedtls_entropy_update_nv_seed( mbedtls_entropy_context *ctx )
{
int ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
/* Read new seed and write it to NV */
if( ( ret = mbedtls_entropy_func( ctx, buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 )
return( ret );
if( mbedtls_nv_seed_write( buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) < 0 )
return( MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR );
/* Manually update the remaining stream with a separator value to diverge */
memset( buf, 0, MBEDTLS_ENTROPY_BLOCK_SIZE );
ret = mbedtls_entropy_update_manual( ctx, buf, MBEDTLS_ENTROPY_BLOCK_SIZE );
return( ret );
}
#endif /* MBEDTLS_ENTROPY_NV_SEED */
#if defined(MBEDTLS_FS_IO)
int mbedtls_entropy_write_seed_file( mbedtls_entropy_context *ctx, const char *path )
{
int ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
FILE *f;
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
if( ( f = fopen( path, "wb" ) ) == NULL )
return( MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR );
if( ( ret = mbedtls_entropy_func( ctx, buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) ) != 0 )
goto exit;
if( fwrite( buf, 1, MBEDTLS_ENTROPY_BLOCK_SIZE, f ) != MBEDTLS_ENTROPY_BLOCK_SIZE )
{
ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
goto exit;
}
ret = 0;
exit:
mbedtls_platform_zeroize( buf, sizeof( buf ) );
fclose( f );
return( ret );
}
int mbedtls_entropy_update_seed_file( mbedtls_entropy_context *ctx, const char *path )
{
int ret = 0;
FILE *f;
size_t n;
unsigned char buf[ MBEDTLS_ENTROPY_MAX_SEED_SIZE ];
if( ( f = fopen( path, "rb" ) ) == NULL )
return( MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR );
fseek( f, 0, SEEK_END );
n = (size_t) ftell( f );
fseek( f, 0, SEEK_SET );
if( n > MBEDTLS_ENTROPY_MAX_SEED_SIZE )
n = MBEDTLS_ENTROPY_MAX_SEED_SIZE;
if( fread( buf, 1, n, f ) != n )
ret = MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR;
else
ret = mbedtls_entropy_update_manual( ctx, buf, n );
fclose( f );
mbedtls_platform_zeroize( buf, sizeof( buf ) );
if( ret != 0 )
return( ret );
return( mbedtls_entropy_write_seed_file( ctx, path ) );
}
#endif /* MBEDTLS_FS_IO */
#if defined(MBEDTLS_SELF_TEST)
#if !defined(MBEDTLS_TEST_NULL_ENTROPY)
/*
* Dummy source function
*/
static int entropy_dummy_source( void *data, unsigned char *output,
size_t len, size_t *olen )
{
((void) data);
memset( output, 0x2a, len );
*olen = len;
return( 0 );
}
#endif /* !MBEDTLS_TEST_NULL_ENTROPY */
#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
static int mbedtls_entropy_source_self_test_gather( unsigned char *buf, size_t buf_len )
{
int ret = 0;
size_t entropy_len = 0;
size_t olen = 0;
size_t attempts = buf_len;
while( attempts > 0 && entropy_len < buf_len )
{
if( ( ret = mbedtls_hardware_poll( NULL, buf + entropy_len,
buf_len - entropy_len, &olen ) ) != 0 )
return( ret );
entropy_len += olen;
attempts--;
}
if( entropy_len < buf_len )
{
ret = 1;
}
return( ret );
}
static int mbedtls_entropy_source_self_test_check_bits( const unsigned char *buf,
size_t buf_len )
{
unsigned char set= 0xFF;
unsigned char unset = 0x00;
size_t i;
for( i = 0; i < buf_len; i++ )
{
set &= buf[i];
unset |= buf[i];
}
return( set == 0xFF || unset == 0x00 );
}
/*
* A test to ensure hat the entropy sources are functioning correctly
* and there is no obvious failure. The test performs the following checks:
* - The entropy source is not providing only 0s (all bits unset) or 1s (all
* bits set).
* - The entropy source is not providing values in a pattern. Because the
* hardware could be providing data in an arbitrary length, this check polls
* the hardware entropy source twice and compares the result to ensure they
* are not equal.
* - The error code returned by the entropy source is not an error.
*/
int mbedtls_entropy_source_self_test( int verbose )
{
int ret = 0;
unsigned char buf0[2 * sizeof( unsigned long long int )];
unsigned char buf1[2 * sizeof( unsigned long long int )];
if( verbose != 0 )
mbedtls_printf( " ENTROPY_BIAS test: " );
memset( buf0, 0x00, sizeof( buf0 ) );
memset( buf1, 0x00, sizeof( buf1 ) );
if( ( ret = mbedtls_entropy_source_self_test_gather( buf0, sizeof( buf0 ) ) ) != 0 )
goto cleanup;
if( ( ret = mbedtls_entropy_source_self_test_gather( buf1, sizeof( buf1 ) ) ) != 0 )
goto cleanup;
/* Make sure that the returned values are not all 0 or 1 */
if( ( ret = mbedtls_entropy_source_self_test_check_bits( buf0, sizeof( buf0 ) ) ) != 0 )
goto cleanup;
if( ( ret = mbedtls_entropy_source_self_test_check_bits( buf1, sizeof( buf1 ) ) ) != 0 )
goto cleanup;
/* Make sure that the entropy source is not returning values in a
* pattern */
ret = memcmp( buf0, buf1, sizeof( buf0 ) ) == 0;
cleanup:
if( verbose != 0 )
{
if( ret != 0 )
mbedtls_printf( "failed\n" );
else
mbedtls_printf( "passed\n" );
mbedtls_printf( "\n" );
}
return( ret != 0 );
}
#endif /* MBEDTLS_ENTROPY_HARDWARE_ALT */
/*
* The actual entropy quality is hard to test, but we can at least
* test that the functions don't cause errors and write the correct
* amount of data to buffers.
*/
int mbedtls_entropy_self_test( int verbose )
{
int ret = 1;
#if !defined(MBEDTLS_TEST_NULL_ENTROPY)
mbedtls_entropy_context ctx;
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE] = { 0 };
unsigned char acc[MBEDTLS_ENTROPY_BLOCK_SIZE] = { 0 };
size_t i, j;
#endif /* !MBEDTLS_TEST_NULL_ENTROPY */
if( verbose != 0 )
mbedtls_printf( " ENTROPY test: " );
#if !defined(MBEDTLS_TEST_NULL_ENTROPY)
mbedtls_entropy_init( &ctx );
/* First do a gather to make sure we have default sources */
if( ( ret = mbedtls_entropy_gather( &ctx ) ) != 0 )
goto cleanup;
ret = mbedtls_entropy_add_source( &ctx, entropy_dummy_source, NULL, 16,
MBEDTLS_ENTROPY_SOURCE_WEAK );
if( ret != 0 )
goto cleanup;
if( ( ret = mbedtls_entropy_update_manual( &ctx, buf, sizeof buf ) ) != 0 )
goto cleanup;
/*
* To test that mbedtls_entropy_func writes correct number of bytes:
* - use the whole buffer and rely on ASan to detect overruns
* - collect entropy 8 times and OR the result in an accumulator:
* any byte should then be 0 with probably 2^(-64), so requiring
* each of the 32 or 64 bytes to be non-zero has a false failure rate
* of at most 2^(-58) which is acceptable.
*/
for( i = 0; i < 8; i++ )
{
if( ( ret = mbedtls_entropy_func( &ctx, buf, sizeof( buf ) ) ) != 0 )
goto cleanup;
for( j = 0; j < sizeof( buf ); j++ )
acc[j] |= buf[j];
}
for( j = 0; j < sizeof( buf ); j++ )
{
if( acc[j] == 0 )
{
ret = 1;
goto cleanup;
}
}
#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
if( ( ret = mbedtls_entropy_source_self_test( 0 ) ) != 0 )
goto cleanup;
#endif
cleanup:
mbedtls_entropy_free( &ctx );
#endif /* !MBEDTLS_TEST_NULL_ENTROPY */
if( verbose != 0 )
{
if( ret != 0 )
mbedtls_printf( "failed\n" );
else
mbedtls_printf( "passed\n" );
mbedtls_printf( "\n" );
}
return( ret != 0 );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_ENTROPY_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/entropy.c | C | apache-2.0 | 20,736 |
/*
* Platform-specific and custom entropy polling functions
*
* Copyright (C) 2006-2016, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if defined(__linux__)
/* Ensure that syscall() is available even when compiling with -std=c99 */
#define _GNU_SOURCE
#endif
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#include <string.h>
#if defined(MBEDTLS_ENTROPY_C)
#include "mbedtls/entropy.h"
#include "mbedtls/entropy_poll.h"
#if defined(MBEDTLS_TIMING_C)
#include "mbedtls/timing.h"
#endif
#if defined(MBEDTLS_HAVEGE_C)
#include "mbedtls/havege.h"
#endif
#if defined(MBEDTLS_ENTROPY_NV_SEED)
#include "mbedtls/platform.h"
#endif
#if !defined(MBEDTLS_NO_PLATFORM_ENTROPY)
#if !defined(unix) && !defined(__unix__) && !defined(__unix) && \
!defined(__APPLE__) && !defined(_WIN32) && !defined(__QNXNTO__) && !defined(__CSKY__) && \
!defined(__HAIKU__)
#error "Platform entropy sources only work on Unix and Windows, see MBEDTLS_NO_PLATFORM_ENTROPY in config.h"
#endif
#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
#if !defined(_WIN32_WINNT)
#define _WIN32_WINNT 0x0400
#endif
#include <windows.h>
#include <wincrypt.h>
int mbedtls_platform_entropy_poll( void *data, unsigned char *output, size_t len,
size_t *olen )
{
HCRYPTPROV provider;
((void) data);
*olen = 0;
if( CryptAcquireContext( &provider, NULL, NULL,
PROV_RSA_FULL, CRYPT_VERIFYCONTEXT ) == FALSE )
{
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
}
if( CryptGenRandom( provider, (DWORD) len, output ) == FALSE )
{
CryptReleaseContext( provider, 0 );
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
}
CryptReleaseContext( provider, 0 );
*olen = len;
return( 0 );
}
#else /* _WIN32 && !EFIX64 && !EFI32 */
/*
* Test for Linux getrandom() support.
* Since there is no wrapper in the libc yet, use the generic syscall wrapper
* available in GNU libc and compatible libc's (eg uClibc).
*/
#if defined(__linux__) && defined(__GLIBC__)
#include <unistd.h>
#include <sys/syscall.h>
#if defined(SYS_getrandom)
#define HAVE_GETRANDOM
#include <errno.h>
static int getrandom_wrapper( void *buf, size_t buflen, unsigned int flags )
{
/* MemSan cannot understand that the syscall writes to the buffer */
#if defined(__has_feature)
#if __has_feature(memory_sanitizer)
memset( buf, 0, buflen );
#endif
#endif
return( syscall( SYS_getrandom, buf, buflen, flags ) );
}
#endif /* SYS_getrandom */
#endif /* __linux__ */
#include <stdio.h>
int mbedtls_platform_entropy_poll( void *data,
unsigned char *output, size_t len, size_t *olen )
{
FILE *file;
size_t read_len;
int ret;
((void) data);
#if defined(HAVE_GETRANDOM)
ret = getrandom_wrapper( output, len, 0 );
if( ret >= 0 )
{
*olen = ret;
return( 0 );
}
else if( errno != ENOSYS )
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
/* Fall through if the system call isn't known. */
#else
((void) ret);
#endif /* HAVE_GETRANDOM */
*olen = 0;
#if !defined(__CSKY__)
file = fopen( "/dev/urandom", "rb" );
if( file == NULL )
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
read_len = fread( output, 1, len, file );
if( read_len != len )
{
fclose( file );
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
}
fclose( file );
#else
((void) file);
extern void * memcpy( void *, const void *, size_t );
//FIXME: fack random
memcpy(output, (void *)&read_len, len);
#endif
*olen = len;
return( 0 );
}
#endif /* _WIN32 && !EFIX64 && !EFI32 */
#endif /* !MBEDTLS_NO_PLATFORM_ENTROPY */
#if defined(MBEDTLS_TEST_NULL_ENTROPY)
int mbedtls_null_entropy_poll( void *data,
unsigned char *output, size_t len, size_t *olen )
{
((void) data);
((void) output);
*olen = 0;
if( len < sizeof(unsigned char) )
return( 0 );
*olen = sizeof(unsigned char);
return( 0 );
}
#endif
#if defined(MBEDTLS_TIMING_C)
int mbedtls_hardclock_poll( void *data,
unsigned char *output, size_t len, size_t *olen )
{
unsigned long timer = mbedtls_timing_hardclock();
((void) data);
*olen = 0;
if( len < sizeof(unsigned long) )
return( 0 );
memcpy( output, &timer, sizeof(unsigned long) );
*olen = sizeof(unsigned long);
return( 0 );
}
#endif /* MBEDTLS_TIMING_C */
#if defined(MBEDTLS_HAVEGE_C)
int mbedtls_havege_poll( void *data,
unsigned char *output, size_t len, size_t *olen )
{
mbedtls_havege_state *hs = (mbedtls_havege_state *) data;
*olen = 0;
if( mbedtls_havege_random( hs, output, len ) != 0 )
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
*olen = len;
return( 0 );
}
#endif /* MBEDTLS_HAVEGE_C */
#if defined(MBEDTLS_ENTROPY_NV_SEED)
int mbedtls_nv_seed_poll( void *data,
unsigned char *output, size_t len, size_t *olen )
{
unsigned char buf[MBEDTLS_ENTROPY_BLOCK_SIZE];
size_t use_len = MBEDTLS_ENTROPY_BLOCK_SIZE;
((void) data);
memset( buf, 0, MBEDTLS_ENTROPY_BLOCK_SIZE );
if( mbedtls_nv_seed_read( buf, MBEDTLS_ENTROPY_BLOCK_SIZE ) < 0 )
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
if( len < use_len )
use_len = len;
memcpy( output, buf, use_len );
*olen = use_len;
return( 0 );
}
#endif /* MBEDTLS_ENTROPY_NV_SEED */
#endif /* MBEDTLS_ENTROPY_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/entropy_poll.c | C | apache-2.0 | 6,215 |
/*
* Error message information
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_ERROR_C) || defined(MBEDTLS_ERROR_STRERROR_DUMMY)
#include "mbedtls/error.h"
#include <string.h>
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#define mbedtls_snprintf snprintf
#define mbedtls_time_t time_t
#endif
#if defined(MBEDTLS_ERROR_C)
#include <stdio.h>
#if defined(MBEDTLS_AES_C)
#include "mbedtls/aes.h"
#endif
#if defined(MBEDTLS_ARC4_C)
#include "mbedtls/arc4.h"
#endif
#if defined(MBEDTLS_ARIA_C)
#include "mbedtls/aria.h"
#endif
#if defined(MBEDTLS_BASE64_C)
#include "mbedtls/base64.h"
#endif
#if defined(MBEDTLS_BIGNUM_C)
#include "mbedtls/bignum.h"
#endif
#if defined(MBEDTLS_BLOWFISH_C)
#include "mbedtls/blowfish.h"
#endif
#if defined(MBEDTLS_CAMELLIA_C)
#include "mbedtls/camellia.h"
#endif
#if defined(MBEDTLS_CCM_C)
#include "mbedtls/ccm.h"
#endif
#if defined(MBEDTLS_CHACHA20_C)
#include "mbedtls/chacha20.h"
#endif
#if defined(MBEDTLS_CHACHAPOLY_C)
#include "mbedtls/chachapoly.h"
#endif
#if defined(MBEDTLS_CIPHER_C)
#include "mbedtls/cipher.h"
#endif
#if defined(MBEDTLS_CMAC_C)
#include "mbedtls/cmac.h"
#endif
#if defined(MBEDTLS_CTR_DRBG_C)
#include "mbedtls/ctr_drbg.h"
#endif
#if defined(MBEDTLS_DES_C)
#include "mbedtls/des.h"
#endif
#if defined(MBEDTLS_DHM_C)
#include "mbedtls/dhm.h"
#endif
#if defined(MBEDTLS_ECP_C)
#include "mbedtls/ecp.h"
#endif
#if defined(MBEDTLS_ENTROPY_C)
#include "mbedtls/entropy.h"
#endif
#if defined(MBEDTLS_GCM_C)
#include "mbedtls/gcm.h"
#endif
#if defined(MBEDTLS_HKDF_C)
#include "mbedtls/hkdf.h"
#endif
#if defined(MBEDTLS_HMAC_DRBG_C)
#include "mbedtls/hmac_drbg.h"
#endif
#if defined(MBEDTLS_MD_C)
#include "mbedtls/md.h"
#endif
#if defined(MBEDTLS_MD2_C)
#include "mbedtls/md2.h"
#endif
#if defined(MBEDTLS_MD4_C)
#include "mbedtls/md4.h"
#endif
#if defined(MBEDTLS_MD5_C)
#include "mbedtls/md5.h"
#endif
#if defined(MBEDTLS_NET_C)
#include "mbedtls/net_sockets.h"
#endif
#if defined(MBEDTLS_OID_C)
#include "mbedtls/oid.h"
#endif
#if defined(MBEDTLS_PADLOCK_C)
#include "mbedtls/padlock.h"
#endif
#if defined(MBEDTLS_PEM_PARSE_C) || defined(MBEDTLS_PEM_WRITE_C)
#include "mbedtls/pem.h"
#endif
#if defined(MBEDTLS_PK_C)
#include "mbedtls/pk.h"
#endif
#if defined(MBEDTLS_PKCS12_C)
#include "mbedtls/pkcs12.h"
#endif
#if defined(MBEDTLS_PKCS5_C)
#include "mbedtls/pkcs5.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#endif
#if defined(MBEDTLS_POLY1305_C)
#include "mbedtls/poly1305.h"
#endif
#if defined(MBEDTLS_RIPEMD160_C)
#include "mbedtls/ripemd160.h"
#endif
#if defined(MBEDTLS_RSA_C)
#include "mbedtls/rsa.h"
#endif
#if defined(MBEDTLS_SHA1_C)
#include "mbedtls/sha1.h"
#endif
#if defined(MBEDTLS_SHA256_C)
#include "mbedtls/sha256.h"
#endif
#if defined(MBEDTLS_SHA512_C)
#include "mbedtls/sha512.h"
#endif
#if defined(MBEDTLS_SSL_TLS_C)
#include "mbedtls/ssl.h"
#endif
#if defined(MBEDTLS_THREADING_C)
#include "mbedtls/threading.h"
#endif
#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C)
#include "mbedtls/x509.h"
#endif
#if defined(MBEDTLS_XTEA_C)
#include "mbedtls/xtea.h"
#endif
void mbedtls_strerror( int ret, char *buf, size_t buflen )
{
size_t len;
int use_ret;
if( buflen == 0 )
return;
memset( buf, 0x00, buflen );
if( ret < 0 )
ret = -ret;
if( ret & 0xFF80 )
{
use_ret = ret & 0xFF80;
// High level error codes
//
// BEGIN generated code
#if defined(MBEDTLS_CIPHER_C)
if( use_ret == -(MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "CIPHER - The selected feature is not available" );
if( use_ret == -(MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "CIPHER - Bad input parameters" );
if( use_ret == -(MBEDTLS_ERR_CIPHER_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "CIPHER - Failed to allocate memory" );
if( use_ret == -(MBEDTLS_ERR_CIPHER_INVALID_PADDING) )
mbedtls_snprintf( buf, buflen, "CIPHER - Input data contains invalid padding and is rejected" );
if( use_ret == -(MBEDTLS_ERR_CIPHER_FULL_BLOCK_EXPECTED) )
mbedtls_snprintf( buf, buflen, "CIPHER - Decryption of block requires a full block" );
if( use_ret == -(MBEDTLS_ERR_CIPHER_AUTH_FAILED) )
mbedtls_snprintf( buf, buflen, "CIPHER - Authentication failed (for AEAD modes)" );
if( use_ret == -(MBEDTLS_ERR_CIPHER_INVALID_CONTEXT) )
mbedtls_snprintf( buf, buflen, "CIPHER - The context is invalid. For example, because it was freed" );
if( use_ret == -(MBEDTLS_ERR_CIPHER_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "CIPHER - Cipher hardware accelerator failed" );
#endif /* MBEDTLS_CIPHER_C */
#if defined(MBEDTLS_DHM_C)
if( use_ret == -(MBEDTLS_ERR_DHM_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "DHM - Bad input parameters" );
if( use_ret == -(MBEDTLS_ERR_DHM_READ_PARAMS_FAILED) )
mbedtls_snprintf( buf, buflen, "DHM - Reading of the DHM parameters failed" );
if( use_ret == -(MBEDTLS_ERR_DHM_MAKE_PARAMS_FAILED) )
mbedtls_snprintf( buf, buflen, "DHM - Making of the DHM parameters failed" );
if( use_ret == -(MBEDTLS_ERR_DHM_READ_PUBLIC_FAILED) )
mbedtls_snprintf( buf, buflen, "DHM - Reading of the public values failed" );
if( use_ret == -(MBEDTLS_ERR_DHM_MAKE_PUBLIC_FAILED) )
mbedtls_snprintf( buf, buflen, "DHM - Making of the public value failed" );
if( use_ret == -(MBEDTLS_ERR_DHM_CALC_SECRET_FAILED) )
mbedtls_snprintf( buf, buflen, "DHM - Calculation of the DHM secret failed" );
if( use_ret == -(MBEDTLS_ERR_DHM_INVALID_FORMAT) )
mbedtls_snprintf( buf, buflen, "DHM - The ASN.1 data is not formatted correctly" );
if( use_ret == -(MBEDTLS_ERR_DHM_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "DHM - Allocation of memory failed" );
if( use_ret == -(MBEDTLS_ERR_DHM_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "DHM - Read or write of file failed" );
if( use_ret == -(MBEDTLS_ERR_DHM_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "DHM - DHM hardware accelerator failed" );
if( use_ret == -(MBEDTLS_ERR_DHM_SET_GROUP_FAILED) )
mbedtls_snprintf( buf, buflen, "DHM - Setting the modulus and generator failed" );
#endif /* MBEDTLS_DHM_C */
#if defined(MBEDTLS_ECP_C)
if( use_ret == -(MBEDTLS_ERR_ECP_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "ECP - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "ECP - The buffer is too small to write to" );
if( use_ret == -(MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "ECP - The requested feature is not available, for example, the requested curve is not supported" );
if( use_ret == -(MBEDTLS_ERR_ECP_VERIFY_FAILED) )
mbedtls_snprintf( buf, buflen, "ECP - The signature is not valid" );
if( use_ret == -(MBEDTLS_ERR_ECP_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "ECP - Memory allocation failed" );
if( use_ret == -(MBEDTLS_ERR_ECP_RANDOM_FAILED) )
mbedtls_snprintf( buf, buflen, "ECP - Generation of random value, such as ephemeral key, failed" );
if( use_ret == -(MBEDTLS_ERR_ECP_INVALID_KEY) )
mbedtls_snprintf( buf, buflen, "ECP - Invalid private or public key" );
if( use_ret == -(MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH) )
mbedtls_snprintf( buf, buflen, "ECP - The buffer contains a valid signature followed by more data" );
if( use_ret == -(MBEDTLS_ERR_ECP_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "ECP - The ECP hardware accelerator failed" );
if( use_ret == -(MBEDTLS_ERR_ECP_IN_PROGRESS) )
mbedtls_snprintf( buf, buflen, "ECP - Operation in progress, call again with the same parameters to continue" );
#endif /* MBEDTLS_ECP_C */
#if defined(MBEDTLS_MD_C)
if( use_ret == -(MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "MD - The selected feature is not available" );
if( use_ret == -(MBEDTLS_ERR_MD_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "MD - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_MD_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "MD - Failed to allocate memory" );
if( use_ret == -(MBEDTLS_ERR_MD_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "MD - Opening or reading of file failed" );
if( use_ret == -(MBEDTLS_ERR_MD_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "MD - MD hardware accelerator failed" );
#endif /* MBEDTLS_MD_C */
#if defined(MBEDTLS_PEM_PARSE_C) || defined(MBEDTLS_PEM_WRITE_C)
if( use_ret == -(MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT) )
mbedtls_snprintf( buf, buflen, "PEM - No PEM header or footer found" );
if( use_ret == -(MBEDTLS_ERR_PEM_INVALID_DATA) )
mbedtls_snprintf( buf, buflen, "PEM - PEM string is not as expected" );
if( use_ret == -(MBEDTLS_ERR_PEM_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "PEM - Failed to allocate memory" );
if( use_ret == -(MBEDTLS_ERR_PEM_INVALID_ENC_IV) )
mbedtls_snprintf( buf, buflen, "PEM - RSA IV is not in hex-format" );
if( use_ret == -(MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG) )
mbedtls_snprintf( buf, buflen, "PEM - Unsupported key encryption algorithm" );
if( use_ret == -(MBEDTLS_ERR_PEM_PASSWORD_REQUIRED) )
mbedtls_snprintf( buf, buflen, "PEM - Private key password can't be empty" );
if( use_ret == -(MBEDTLS_ERR_PEM_PASSWORD_MISMATCH) )
mbedtls_snprintf( buf, buflen, "PEM - Given private key password does not allow for correct decryption" );
if( use_ret == -(MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "PEM - Unavailable feature, e.g. hashing/encryption combination" );
if( use_ret == -(MBEDTLS_ERR_PEM_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "PEM - Bad input parameters to function" );
#endif /* MBEDTLS_PEM_PARSE_C || MBEDTLS_PEM_WRITE_C */
#if defined(MBEDTLS_PK_C)
if( use_ret == -(MBEDTLS_ERR_PK_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "PK - Memory allocation failed" );
if( use_ret == -(MBEDTLS_ERR_PK_TYPE_MISMATCH) )
mbedtls_snprintf( buf, buflen, "PK - Type mismatch, eg attempt to encrypt with an ECDSA key" );
if( use_ret == -(MBEDTLS_ERR_PK_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "PK - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_PK_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "PK - Read/write of file failed" );
if( use_ret == -(MBEDTLS_ERR_PK_KEY_INVALID_VERSION) )
mbedtls_snprintf( buf, buflen, "PK - Unsupported key version" );
if( use_ret == -(MBEDTLS_ERR_PK_KEY_INVALID_FORMAT) )
mbedtls_snprintf( buf, buflen, "PK - Invalid key tag or value" );
if( use_ret == -(MBEDTLS_ERR_PK_UNKNOWN_PK_ALG) )
mbedtls_snprintf( buf, buflen, "PK - Key algorithm is unsupported (only RSA and EC are supported)" );
if( use_ret == -(MBEDTLS_ERR_PK_PASSWORD_REQUIRED) )
mbedtls_snprintf( buf, buflen, "PK - Private key password can't be empty" );
if( use_ret == -(MBEDTLS_ERR_PK_PASSWORD_MISMATCH) )
mbedtls_snprintf( buf, buflen, "PK - Given private key password does not allow for correct decryption" );
if( use_ret == -(MBEDTLS_ERR_PK_INVALID_PUBKEY) )
mbedtls_snprintf( buf, buflen, "PK - The pubkey tag or value is invalid (only RSA and EC are supported)" );
if( use_ret == -(MBEDTLS_ERR_PK_INVALID_ALG) )
mbedtls_snprintf( buf, buflen, "PK - The algorithm tag or value is invalid" );
if( use_ret == -(MBEDTLS_ERR_PK_UNKNOWN_NAMED_CURVE) )
mbedtls_snprintf( buf, buflen, "PK - Elliptic curve is unsupported (only NIST curves are supported)" );
if( use_ret == -(MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "PK - Unavailable feature, e.g. RSA disabled for RSA key" );
if( use_ret == -(MBEDTLS_ERR_PK_SIG_LEN_MISMATCH) )
mbedtls_snprintf( buf, buflen, "PK - The buffer contains a valid signature followed by more data" );
if( use_ret == -(MBEDTLS_ERR_PK_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "PK - PK hardware accelerator failed" );
#endif /* MBEDTLS_PK_C */
#if defined(MBEDTLS_PKCS12_C)
if( use_ret == -(MBEDTLS_ERR_PKCS12_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "PKCS12 - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "PKCS12 - Feature not available, e.g. unsupported encryption scheme" );
if( use_ret == -(MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT) )
mbedtls_snprintf( buf, buflen, "PKCS12 - PBE ASN.1 data not as expected" );
if( use_ret == -(MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH) )
mbedtls_snprintf( buf, buflen, "PKCS12 - Given private key password does not allow for correct decryption" );
#endif /* MBEDTLS_PKCS12_C */
#if defined(MBEDTLS_PKCS5_C)
if( use_ret == -(MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "PKCS5 - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_PKCS5_INVALID_FORMAT) )
mbedtls_snprintf( buf, buflen, "PKCS5 - Unexpected ASN.1 data" );
if( use_ret == -(MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "PKCS5 - Requested encryption or digest alg not available" );
if( use_ret == -(MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH) )
mbedtls_snprintf( buf, buflen, "PKCS5 - Given private key password does not allow for correct decryption" );
#endif /* MBEDTLS_PKCS5_C */
#if defined(MBEDTLS_RSA_C)
if( use_ret == -(MBEDTLS_ERR_RSA_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "RSA - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_RSA_INVALID_PADDING) )
mbedtls_snprintf( buf, buflen, "RSA - Input data contains invalid padding and is rejected" );
if( use_ret == -(MBEDTLS_ERR_RSA_KEY_GEN_FAILED) )
mbedtls_snprintf( buf, buflen, "RSA - Something failed during generation of a key" );
if( use_ret == -(MBEDTLS_ERR_RSA_KEY_CHECK_FAILED) )
mbedtls_snprintf( buf, buflen, "RSA - Key failed to pass the validity check of the library" );
if( use_ret == -(MBEDTLS_ERR_RSA_PUBLIC_FAILED) )
mbedtls_snprintf( buf, buflen, "RSA - The public key operation failed" );
if( use_ret == -(MBEDTLS_ERR_RSA_PRIVATE_FAILED) )
mbedtls_snprintf( buf, buflen, "RSA - The private key operation failed" );
if( use_ret == -(MBEDTLS_ERR_RSA_VERIFY_FAILED) )
mbedtls_snprintf( buf, buflen, "RSA - The PKCS#1 verification failed" );
if( use_ret == -(MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE) )
mbedtls_snprintf( buf, buflen, "RSA - The output buffer for decryption is not large enough" );
if( use_ret == -(MBEDTLS_ERR_RSA_RNG_FAILED) )
mbedtls_snprintf( buf, buflen, "RSA - The random generator failed to generate non-zeros" );
if( use_ret == -(MBEDTLS_ERR_RSA_UNSUPPORTED_OPERATION) )
mbedtls_snprintf( buf, buflen, "RSA - The implementation does not offer the requested operation, for example, because of security violations or lack of functionality" );
if( use_ret == -(MBEDTLS_ERR_RSA_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "RSA - RSA hardware accelerator failed" );
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_SSL_TLS_C)
if( use_ret == -(MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "SSL - The requested feature is not available" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "SSL - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_MAC) )
mbedtls_snprintf( buf, buflen, "SSL - Verification of the message MAC failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_RECORD) )
mbedtls_snprintf( buf, buflen, "SSL - An invalid SSL record was received" );
if( use_ret == -(MBEDTLS_ERR_SSL_CONN_EOF) )
mbedtls_snprintf( buf, buflen, "SSL - The connection indicated an EOF" );
if( use_ret == -(MBEDTLS_ERR_SSL_UNKNOWN_CIPHER) )
mbedtls_snprintf( buf, buflen, "SSL - An unknown cipher was received" );
if( use_ret == -(MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN) )
mbedtls_snprintf( buf, buflen, "SSL - The server has no ciphersuites in common with the client" );
if( use_ret == -(MBEDTLS_ERR_SSL_NO_RNG) )
mbedtls_snprintf( buf, buflen, "SSL - No RNG was provided to the SSL module" );
if( use_ret == -(MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE) )
mbedtls_snprintf( buf, buflen, "SSL - No client certification received from the client, but required by the authentication mode" );
if( use_ret == -(MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE) )
mbedtls_snprintf( buf, buflen, "SSL - Our own certificate(s) is/are too large to send in an SSL message" );
if( use_ret == -(MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED) )
mbedtls_snprintf( buf, buflen, "SSL - The own certificate is not set, but needed by the server" );
if( use_ret == -(MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED) )
mbedtls_snprintf( buf, buflen, "SSL - The own private key or pre-shared key is not set, but needed" );
if( use_ret == -(MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED) )
mbedtls_snprintf( buf, buflen, "SSL - No CA Chain is set, but required to operate" );
if( use_ret == -(MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE) )
mbedtls_snprintf( buf, buflen, "SSL - An unexpected message was received from our peer" );
if( use_ret == -(MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE) )
{
mbedtls_snprintf( buf, buflen, "SSL - A fatal alert message was received from our peer" );
return;
}
if( use_ret == -(MBEDTLS_ERR_SSL_PEER_VERIFY_FAILED) )
mbedtls_snprintf( buf, buflen, "SSL - Verification of our peer failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY) )
mbedtls_snprintf( buf, buflen, "SSL - The peer notified us that the connection is going to be closed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientHello handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerHello handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the Certificate handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the CertificateRequest handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerKeyExchange handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ServerHelloDone handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Read Public" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ClientKeyExchange handshake message failed in DHM / ECDH Calculate Secret" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the CertificateVerify handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the ChangeCipherSpec handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_FINISHED) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the Finished handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "SSL - Memory allocation failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "SSL - Hardware acceleration function returned with error" );
if( use_ret == -(MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH) )
mbedtls_snprintf( buf, buflen, "SSL - Hardware acceleration function skipped / left alone data" );
if( use_ret == -(MBEDTLS_ERR_SSL_COMPRESSION_FAILED) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the compression / decompression failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION) )
mbedtls_snprintf( buf, buflen, "SSL - Handshake protocol not within min/max boundaries" );
if( use_ret == -(MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET) )
mbedtls_snprintf( buf, buflen, "SSL - Processing of the NewSessionTicket handshake message failed" );
if( use_ret == -(MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED) )
mbedtls_snprintf( buf, buflen, "SSL - Session ticket has expired" );
if( use_ret == -(MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH) )
mbedtls_snprintf( buf, buflen, "SSL - Public key type mismatch (eg, asked for RSA key exchange and presented EC key)" );
if( use_ret == -(MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY) )
mbedtls_snprintf( buf, buflen, "SSL - Unknown identity received (eg, PSK identity)" );
if( use_ret == -(MBEDTLS_ERR_SSL_INTERNAL_ERROR) )
mbedtls_snprintf( buf, buflen, "SSL - Internal error (eg, unexpected failure in lower-level module)" );
if( use_ret == -(MBEDTLS_ERR_SSL_COUNTER_WRAPPING) )
mbedtls_snprintf( buf, buflen, "SSL - A counter would wrap (eg, too many messages exchanged)" );
if( use_ret == -(MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO) )
mbedtls_snprintf( buf, buflen, "SSL - Unexpected message at ServerHello in renegotiation" );
if( use_ret == -(MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED) )
mbedtls_snprintf( buf, buflen, "SSL - DTLS client must retry for hello verification" );
if( use_ret == -(MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "SSL - A buffer is too small to receive or write a message" );
if( use_ret == -(MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE) )
mbedtls_snprintf( buf, buflen, "SSL - None of the common ciphersuites is usable (eg, no suitable certificate, see debug messages)" );
if( use_ret == -(MBEDTLS_ERR_SSL_WANT_READ) )
mbedtls_snprintf( buf, buflen, "SSL - No data of requested type currently available on underlying transport" );
if( use_ret == -(MBEDTLS_ERR_SSL_WANT_WRITE) )
mbedtls_snprintf( buf, buflen, "SSL - Connection requires a write call" );
if( use_ret == -(MBEDTLS_ERR_SSL_TIMEOUT) )
mbedtls_snprintf( buf, buflen, "SSL - The operation timed out" );
if( use_ret == -(MBEDTLS_ERR_SSL_CLIENT_RECONNECT) )
mbedtls_snprintf( buf, buflen, "SSL - The client initiated a reconnect from the same port" );
if( use_ret == -(MBEDTLS_ERR_SSL_UNEXPECTED_RECORD) )
mbedtls_snprintf( buf, buflen, "SSL - Record header looks valid but is not expected" );
if( use_ret == -(MBEDTLS_ERR_SSL_NON_FATAL) )
mbedtls_snprintf( buf, buflen, "SSL - The alert message received indicates a non-fatal error" );
if( use_ret == -(MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH) )
mbedtls_snprintf( buf, buflen, "SSL - Couldn't set the hash for verifying CertificateVerify" );
if( use_ret == -(MBEDTLS_ERR_SSL_CONTINUE_PROCESSING) )
mbedtls_snprintf( buf, buflen, "SSL - Internal-only message signaling that further message-processing should be done" );
if( use_ret == -(MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS) )
mbedtls_snprintf( buf, buflen, "SSL - The asynchronous operation is not completed yet" );
if( use_ret == -(MBEDTLS_ERR_SSL_EARLY_MESSAGE) )
mbedtls_snprintf( buf, buflen, "SSL - Internal-only message signaling that a message arrived early" );
if( use_ret == -(MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) )
mbedtls_snprintf( buf, buflen, "SSL - A cryptographic operation is in progress. Try again later" );
#endif /* MBEDTLS_SSL_TLS_C */
#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C)
if( use_ret == -(MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "X509 - Unavailable feature, e.g. RSA hashing/encryption combination" );
if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_OID) )
mbedtls_snprintf( buf, buflen, "X509 - Requested OID is unknown" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_FORMAT) )
mbedtls_snprintf( buf, buflen, "X509 - The CRT/CRL/CSR format is invalid, e.g. different type expected" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_VERSION) )
mbedtls_snprintf( buf, buflen, "X509 - The CRT/CRL/CSR version element is invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_SERIAL) )
mbedtls_snprintf( buf, buflen, "X509 - The serial tag or value is invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_ALG) )
mbedtls_snprintf( buf, buflen, "X509 - The algorithm tag or value is invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_NAME) )
mbedtls_snprintf( buf, buflen, "X509 - The name tag or value is invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_DATE) )
mbedtls_snprintf( buf, buflen, "X509 - The date tag or value is invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_SIGNATURE) )
mbedtls_snprintf( buf, buflen, "X509 - The signature tag or value invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_INVALID_EXTENSIONS) )
mbedtls_snprintf( buf, buflen, "X509 - The extension tag or value is invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_VERSION) )
mbedtls_snprintf( buf, buflen, "X509 - CRT/CRL/CSR has an unsupported version number" );
if( use_ret == -(MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG) )
mbedtls_snprintf( buf, buflen, "X509 - Signature algorithm (oid) is unsupported" );
if( use_ret == -(MBEDTLS_ERR_X509_SIG_MISMATCH) )
mbedtls_snprintf( buf, buflen, "X509 - Signature algorithms do not match. (see \\c ::mbedtls_x509_crt sig_oid)" );
if( use_ret == -(MBEDTLS_ERR_X509_CERT_VERIFY_FAILED) )
mbedtls_snprintf( buf, buflen, "X509 - Certificate verification failed, e.g. CRL, CA or signature check failed" );
if( use_ret == -(MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT) )
mbedtls_snprintf( buf, buflen, "X509 - Format not recognized as DER or PEM" );
if( use_ret == -(MBEDTLS_ERR_X509_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "X509 - Input invalid" );
if( use_ret == -(MBEDTLS_ERR_X509_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "X509 - Allocation of memory failed" );
if( use_ret == -(MBEDTLS_ERR_X509_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "X509 - Read/write of file failed" );
if( use_ret == -(MBEDTLS_ERR_X509_BUFFER_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "X509 - Destination buffer is too small" );
if( use_ret == -(MBEDTLS_ERR_X509_FATAL_ERROR) )
mbedtls_snprintf( buf, buflen, "X509 - A fatal error occured, eg the chain is too long or the vrfy callback failed" );
#endif /* MBEDTLS_X509_USE_C || MBEDTLS_X509_CREATE_C */
// END generated code
if( strlen( buf ) == 0 )
mbedtls_snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
}
use_ret = ret & ~0xFF80;
if( use_ret == 0 )
return;
// If high level code is present, make a concatenation between both
// error strings.
//
len = strlen( buf );
if( len > 0 )
{
if( buflen - len < 5 )
return;
mbedtls_snprintf( buf + len, buflen - len, " : " );
buf += len + 3;
buflen -= len + 3;
}
// Low level error codes
//
// BEGIN generated code
#if defined(MBEDTLS_AES_C)
if( use_ret == -(MBEDTLS_ERR_AES_INVALID_KEY_LENGTH) )
mbedtls_snprintf( buf, buflen, "AES - Invalid key length" );
if( use_ret == -(MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH) )
mbedtls_snprintf( buf, buflen, "AES - Invalid data input length" );
if( use_ret == -(MBEDTLS_ERR_AES_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "AES - Invalid input data" );
if( use_ret == -(MBEDTLS_ERR_AES_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "AES - Feature not available. For example, an unsupported AES key size" );
if( use_ret == -(MBEDTLS_ERR_AES_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "AES - AES hardware accelerator failed" );
#endif /* MBEDTLS_AES_C */
#if defined(MBEDTLS_ARC4_C)
if( use_ret == -(MBEDTLS_ERR_ARC4_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "ARC4 - ARC4 hardware accelerator failed" );
#endif /* MBEDTLS_ARC4_C */
#if defined(MBEDTLS_ARIA_C)
if( use_ret == -(MBEDTLS_ERR_ARIA_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "ARIA - Bad input data" );
if( use_ret == -(MBEDTLS_ERR_ARIA_INVALID_INPUT_LENGTH) )
mbedtls_snprintf( buf, buflen, "ARIA - Invalid data input length" );
if( use_ret == -(MBEDTLS_ERR_ARIA_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "ARIA - Feature not available. For example, an unsupported ARIA key size" );
if( use_ret == -(MBEDTLS_ERR_ARIA_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "ARIA - ARIA hardware accelerator failed" );
#endif /* MBEDTLS_ARIA_C */
#if defined(MBEDTLS_ASN1_PARSE_C)
if( use_ret == -(MBEDTLS_ERR_ASN1_OUT_OF_DATA) )
mbedtls_snprintf( buf, buflen, "ASN1 - Out of data when parsing an ASN1 data structure" );
if( use_ret == -(MBEDTLS_ERR_ASN1_UNEXPECTED_TAG) )
mbedtls_snprintf( buf, buflen, "ASN1 - ASN1 tag was of an unexpected value" );
if( use_ret == -(MBEDTLS_ERR_ASN1_INVALID_LENGTH) )
mbedtls_snprintf( buf, buflen, "ASN1 - Error when trying to determine the length or invalid length" );
if( use_ret == -(MBEDTLS_ERR_ASN1_LENGTH_MISMATCH) )
mbedtls_snprintf( buf, buflen, "ASN1 - Actual length differs from expected length" );
if( use_ret == -(MBEDTLS_ERR_ASN1_INVALID_DATA) )
mbedtls_snprintf( buf, buflen, "ASN1 - Data is invalid. (not used)" );
if( use_ret == -(MBEDTLS_ERR_ASN1_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "ASN1 - Memory allocation failed" );
if( use_ret == -(MBEDTLS_ERR_ASN1_BUF_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "ASN1 - Buffer too small when writing ASN.1 data structure" );
#endif /* MBEDTLS_ASN1_PARSE_C */
#if defined(MBEDTLS_BASE64_C)
if( use_ret == -(MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "BASE64 - Output buffer too small" );
if( use_ret == -(MBEDTLS_ERR_BASE64_INVALID_CHARACTER) )
mbedtls_snprintf( buf, buflen, "BASE64 - Invalid character in input" );
#endif /* MBEDTLS_BASE64_C */
#if defined(MBEDTLS_BIGNUM_C)
if( use_ret == -(MBEDTLS_ERR_MPI_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "BIGNUM - An error occurred while reading from or writing to a file" );
if( use_ret == -(MBEDTLS_ERR_MPI_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "BIGNUM - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_MPI_INVALID_CHARACTER) )
mbedtls_snprintf( buf, buflen, "BIGNUM - There is an invalid character in the digit string" );
if( use_ret == -(MBEDTLS_ERR_MPI_BUFFER_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "BIGNUM - The buffer is too small to write to" );
if( use_ret == -(MBEDTLS_ERR_MPI_NEGATIVE_VALUE) )
mbedtls_snprintf( buf, buflen, "BIGNUM - The input arguments are negative or result in illegal output" );
if( use_ret == -(MBEDTLS_ERR_MPI_DIVISION_BY_ZERO) )
mbedtls_snprintf( buf, buflen, "BIGNUM - The input argument for division is zero, which is not allowed" );
if( use_ret == -(MBEDTLS_ERR_MPI_NOT_ACCEPTABLE) )
mbedtls_snprintf( buf, buflen, "BIGNUM - The input arguments are not acceptable" );
if( use_ret == -(MBEDTLS_ERR_MPI_ALLOC_FAILED) )
mbedtls_snprintf( buf, buflen, "BIGNUM - Memory allocation failed" );
#endif /* MBEDTLS_BIGNUM_C */
#if defined(MBEDTLS_BLOWFISH_C)
if( use_ret == -(MBEDTLS_ERR_BLOWFISH_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "BLOWFISH - Bad input data" );
if( use_ret == -(MBEDTLS_ERR_BLOWFISH_INVALID_INPUT_LENGTH) )
mbedtls_snprintf( buf, buflen, "BLOWFISH - Invalid data input length" );
if( use_ret == -(MBEDTLS_ERR_BLOWFISH_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "BLOWFISH - Blowfish hardware accelerator failed" );
#endif /* MBEDTLS_BLOWFISH_C */
#if defined(MBEDTLS_CAMELLIA_C)
if( use_ret == -(MBEDTLS_ERR_CAMELLIA_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "CAMELLIA - Bad input data" );
if( use_ret == -(MBEDTLS_ERR_CAMELLIA_INVALID_INPUT_LENGTH) )
mbedtls_snprintf( buf, buflen, "CAMELLIA - Invalid data input length" );
if( use_ret == -(MBEDTLS_ERR_CAMELLIA_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "CAMELLIA - Camellia hardware accelerator failed" );
#endif /* MBEDTLS_CAMELLIA_C */
#if defined(MBEDTLS_CCM_C)
if( use_ret == -(MBEDTLS_ERR_CCM_BAD_INPUT) )
mbedtls_snprintf( buf, buflen, "CCM - Bad input parameters to the function" );
if( use_ret == -(MBEDTLS_ERR_CCM_AUTH_FAILED) )
mbedtls_snprintf( buf, buflen, "CCM - Authenticated decryption failed" );
if( use_ret == -(MBEDTLS_ERR_CCM_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "CCM - CCM hardware accelerator failed" );
#endif /* MBEDTLS_CCM_C */
#if defined(MBEDTLS_CHACHA20_C)
if( use_ret == -(MBEDTLS_ERR_CHACHA20_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "CHACHA20 - Invalid input parameter(s)" );
if( use_ret == -(MBEDTLS_ERR_CHACHA20_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "CHACHA20 - Feature not available. For example, s part of the API is not implemented" );
if( use_ret == -(MBEDTLS_ERR_CHACHA20_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "CHACHA20 - Chacha20 hardware accelerator failed" );
#endif /* MBEDTLS_CHACHA20_C */
#if defined(MBEDTLS_CHACHAPOLY_C)
if( use_ret == -(MBEDTLS_ERR_CHACHAPOLY_BAD_STATE) )
mbedtls_snprintf( buf, buflen, "CHACHAPOLY - The requested operation is not permitted in the current state" );
if( use_ret == -(MBEDTLS_ERR_CHACHAPOLY_AUTH_FAILED) )
mbedtls_snprintf( buf, buflen, "CHACHAPOLY - Authenticated decryption failed: data was not authentic" );
#endif /* MBEDTLS_CHACHAPOLY_C */
#if defined(MBEDTLS_CMAC_C)
if( use_ret == -(MBEDTLS_ERR_CMAC_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "CMAC - CMAC hardware accelerator failed" );
#endif /* MBEDTLS_CMAC_C */
#if defined(MBEDTLS_CTR_DRBG_C)
if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_ENTROPY_SOURCE_FAILED) )
mbedtls_snprintf( buf, buflen, "CTR_DRBG - The entropy source failed" );
if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_REQUEST_TOO_BIG) )
mbedtls_snprintf( buf, buflen, "CTR_DRBG - The requested random buffer length is too big" );
if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_INPUT_TOO_BIG) )
mbedtls_snprintf( buf, buflen, "CTR_DRBG - The input (entropy + additional data) is too large" );
if( use_ret == -(MBEDTLS_ERR_CTR_DRBG_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "CTR_DRBG - Read or write error in file" );
#endif /* MBEDTLS_CTR_DRBG_C */
#if defined(MBEDTLS_DES_C)
if( use_ret == -(MBEDTLS_ERR_DES_INVALID_INPUT_LENGTH) )
mbedtls_snprintf( buf, buflen, "DES - The data input has an invalid length" );
if( use_ret == -(MBEDTLS_ERR_DES_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "DES - DES hardware accelerator failed" );
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_ENTROPY_C)
if( use_ret == -(MBEDTLS_ERR_ENTROPY_SOURCE_FAILED) )
mbedtls_snprintf( buf, buflen, "ENTROPY - Critical entropy source failure" );
if( use_ret == -(MBEDTLS_ERR_ENTROPY_MAX_SOURCES) )
mbedtls_snprintf( buf, buflen, "ENTROPY - No more sources can be added" );
if( use_ret == -(MBEDTLS_ERR_ENTROPY_NO_SOURCES_DEFINED) )
mbedtls_snprintf( buf, buflen, "ENTROPY - No sources have been added to poll" );
if( use_ret == -(MBEDTLS_ERR_ENTROPY_NO_STRONG_SOURCE) )
mbedtls_snprintf( buf, buflen, "ENTROPY - No strong sources have been added to poll" );
if( use_ret == -(MBEDTLS_ERR_ENTROPY_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "ENTROPY - Read/write error in file" );
#endif /* MBEDTLS_ENTROPY_C */
#if defined(MBEDTLS_GCM_C)
if( use_ret == -(MBEDTLS_ERR_GCM_AUTH_FAILED) )
mbedtls_snprintf( buf, buflen, "GCM - Authenticated decryption failed" );
if( use_ret == -(MBEDTLS_ERR_GCM_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "GCM - GCM hardware accelerator failed" );
if( use_ret == -(MBEDTLS_ERR_GCM_BAD_INPUT) )
mbedtls_snprintf( buf, buflen, "GCM - Bad input parameters to function" );
#endif /* MBEDTLS_GCM_C */
#if defined(MBEDTLS_HKDF_C)
if( use_ret == -(MBEDTLS_ERR_HKDF_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "HKDF - Bad input parameters to function" );
#endif /* MBEDTLS_HKDF_C */
#if defined(MBEDTLS_HMAC_DRBG_C)
if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG) )
mbedtls_snprintf( buf, buflen, "HMAC_DRBG - Too many random requested in single call" );
if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG) )
mbedtls_snprintf( buf, buflen, "HMAC_DRBG - Input too large (Entropy + additional)" );
if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR) )
mbedtls_snprintf( buf, buflen, "HMAC_DRBG - Read/write error in file" );
if( use_ret == -(MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED) )
mbedtls_snprintf( buf, buflen, "HMAC_DRBG - The entropy source failed" );
#endif /* MBEDTLS_HMAC_DRBG_C */
#if defined(MBEDTLS_MD2_C)
if( use_ret == -(MBEDTLS_ERR_MD2_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "MD2 - MD2 hardware accelerator failed" );
#endif /* MBEDTLS_MD2_C */
#if defined(MBEDTLS_MD4_C)
if( use_ret == -(MBEDTLS_ERR_MD4_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "MD4 - MD4 hardware accelerator failed" );
#endif /* MBEDTLS_MD4_C */
#if defined(MBEDTLS_MD5_C)
if( use_ret == -(MBEDTLS_ERR_MD5_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "MD5 - MD5 hardware accelerator failed" );
#endif /* MBEDTLS_MD5_C */
#if defined(MBEDTLS_NET_C)
if( use_ret == -(MBEDTLS_ERR_NET_SOCKET_FAILED) )
mbedtls_snprintf( buf, buflen, "NET - Failed to open a socket" );
if( use_ret == -(MBEDTLS_ERR_NET_CONNECT_FAILED) )
mbedtls_snprintf( buf, buflen, "NET - The connection to the given server / port failed" );
if( use_ret == -(MBEDTLS_ERR_NET_BIND_FAILED) )
mbedtls_snprintf( buf, buflen, "NET - Binding of the socket failed" );
if( use_ret == -(MBEDTLS_ERR_NET_LISTEN_FAILED) )
mbedtls_snprintf( buf, buflen, "NET - Could not listen on the socket" );
if( use_ret == -(MBEDTLS_ERR_NET_ACCEPT_FAILED) )
mbedtls_snprintf( buf, buflen, "NET - Could not accept the incoming connection" );
if( use_ret == -(MBEDTLS_ERR_NET_RECV_FAILED) )
mbedtls_snprintf( buf, buflen, "NET - Reading information from the socket failed" );
if( use_ret == -(MBEDTLS_ERR_NET_SEND_FAILED) )
mbedtls_snprintf( buf, buflen, "NET - Sending information through the socket failed" );
if( use_ret == -(MBEDTLS_ERR_NET_CONN_RESET) )
mbedtls_snprintf( buf, buflen, "NET - Connection was reset by peer" );
if( use_ret == -(MBEDTLS_ERR_NET_UNKNOWN_HOST) )
mbedtls_snprintf( buf, buflen, "NET - Failed to get an IP address for the given hostname" );
if( use_ret == -(MBEDTLS_ERR_NET_BUFFER_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "NET - Buffer is too small to hold the data" );
if( use_ret == -(MBEDTLS_ERR_NET_INVALID_CONTEXT) )
mbedtls_snprintf( buf, buflen, "NET - The context is invalid, eg because it was free()ed" );
if( use_ret == -(MBEDTLS_ERR_NET_POLL_FAILED) )
mbedtls_snprintf( buf, buflen, "NET - Polling the net context failed" );
if( use_ret == -(MBEDTLS_ERR_NET_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "NET - Input invalid" );
#endif /* MBEDTLS_NET_C */
#if defined(MBEDTLS_OID_C)
if( use_ret == -(MBEDTLS_ERR_OID_NOT_FOUND) )
mbedtls_snprintf( buf, buflen, "OID - OID is not found" );
if( use_ret == -(MBEDTLS_ERR_OID_BUF_TOO_SMALL) )
mbedtls_snprintf( buf, buflen, "OID - output buffer is too small" );
#endif /* MBEDTLS_OID_C */
#if defined(MBEDTLS_PADLOCK_C)
if( use_ret == -(MBEDTLS_ERR_PADLOCK_DATA_MISALIGNED) )
mbedtls_snprintf( buf, buflen, "PADLOCK - Input data should be aligned" );
#endif /* MBEDTLS_PADLOCK_C */
#if defined(MBEDTLS_PLATFORM_C)
if( use_ret == -(MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "PLATFORM - Hardware accelerator failed" );
if( use_ret == -(MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED) )
mbedtls_snprintf( buf, buflen, "PLATFORM - The requested feature is not supported by the platform" );
#endif /* MBEDTLS_PLATFORM_C */
#if defined(MBEDTLS_POLY1305_C)
if( use_ret == -(MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "POLY1305 - Invalid input parameter(s)" );
if( use_ret == -(MBEDTLS_ERR_POLY1305_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "POLY1305 - Feature not available. For example, s part of the API is not implemented" );
if( use_ret == -(MBEDTLS_ERR_POLY1305_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "POLY1305 - Poly1305 hardware accelerator failed" );
#endif /* MBEDTLS_POLY1305_C */
#if defined(MBEDTLS_RIPEMD160_C)
if( use_ret == -(MBEDTLS_ERR_RIPEMD160_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "RIPEMD160 - RIPEMD160 hardware accelerator failed" );
#endif /* MBEDTLS_RIPEMD160_C */
#if defined(MBEDTLS_SHA1_C)
if( use_ret == -(MBEDTLS_ERR_SHA1_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "SHA1 - SHA-1 hardware accelerator failed" );
if( use_ret == -(MBEDTLS_ERR_SHA1_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "SHA1 - SHA-1 input data was malformed" );
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
if( use_ret == -(MBEDTLS_ERR_SHA256_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "SHA256 - SHA-256 hardware accelerator failed" );
if( use_ret == -(MBEDTLS_ERR_SHA256_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "SHA256 - SHA-256 input data was malformed" );
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
if( use_ret == -(MBEDTLS_ERR_SHA512_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "SHA512 - SHA-512 hardware accelerator failed" );
if( use_ret == -(MBEDTLS_ERR_SHA512_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "SHA512 - SHA-512 input data was malformed" );
#endif /* MBEDTLS_SHA512_C */
#if defined(MBEDTLS_THREADING_C)
if( use_ret == -(MBEDTLS_ERR_THREADING_FEATURE_UNAVAILABLE) )
mbedtls_snprintf( buf, buflen, "THREADING - The selected feature is not available" );
if( use_ret == -(MBEDTLS_ERR_THREADING_BAD_INPUT_DATA) )
mbedtls_snprintf( buf, buflen, "THREADING - Bad input parameters to function" );
if( use_ret == -(MBEDTLS_ERR_THREADING_MUTEX_ERROR) )
mbedtls_snprintf( buf, buflen, "THREADING - Locking / unlocking / free failed with error code" );
#endif /* MBEDTLS_THREADING_C */
#if defined(MBEDTLS_XTEA_C)
if( use_ret == -(MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH) )
mbedtls_snprintf( buf, buflen, "XTEA - The data input has an invalid length" );
if( use_ret == -(MBEDTLS_ERR_XTEA_HW_ACCEL_FAILED) )
mbedtls_snprintf( buf, buflen, "XTEA - XTEA hardware accelerator failed" );
#endif /* MBEDTLS_XTEA_C */
// END generated code
if( strlen( buf ) != 0 )
return;
mbedtls_snprintf( buf, buflen, "UNKNOWN ERROR CODE (%04X)", use_ret );
}
#else /* MBEDTLS_ERROR_C */
#if defined(MBEDTLS_ERROR_STRERROR_DUMMY)
/*
* Provide an non-function in case MBEDTLS_ERROR_C is not defined
*/
void mbedtls_strerror( int ret, char *buf, size_t buflen )
{
((void) ret);
if( buflen > 0 )
buf[0] = '\0';
}
#endif /* MBEDTLS_ERROR_STRERROR_DUMMY */
#endif /* MBEDTLS_ERROR_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/error.c | C | apache-2.0 | 46,978 |
/*
* NIST SP800-38D compliant GCM implementation
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* http://csrc.nist.gov/publications/nistpubs/800-38D/SP-800-38D.pdf
*
* See also:
* [MGV] http://csrc.nist.gov/groups/ST/toolkit/BCM/documents/proposedmodes/gcm/gcm-revised-spec.pdf
*
* We use the algorithm described as Shoup's method with 4-bit tables in
* [MGV] 4.1, pp. 12-13, to enhance speed without using too much memory.
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_GCM_C)
#include "mbedtls/gcm.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_AESNI_C)
#include "mbedtls/aesni.h"
#endif
#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
#include "mbedtls/aes.h"
#include "mbedtls/platform.h"
#if !defined(MBEDTLS_PLATFORM_C)
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
#if !defined(MBEDTLS_GCM_ALT)
/* Parameter validation macros */
#define GCM_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_GCM_BAD_INPUT )
#define GCM_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
/*
* 32-bit integer manipulation macros (big endian)
*/
#ifndef GET_UINT32_BE
#define GET_UINT32_BE(n,b,i) \
{ \
(n) = ( (uint32_t) (b)[(i) ] << 24 ) \
| ( (uint32_t) (b)[(i) + 1] << 16 ) \
| ( (uint32_t) (b)[(i) + 2] << 8 ) \
| ( (uint32_t) (b)[(i) + 3] ); \
}
#endif
#ifndef PUT_UINT32_BE
#define PUT_UINT32_BE(n,b,i) \
{ \
(b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
(b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
(b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
(b)[(i) + 3] = (unsigned char) ( (n) ); \
}
#endif
/*
* Initialize a context
*/
void mbedtls_gcm_init( mbedtls_gcm_context *ctx )
{
GCM_VALIDATE( ctx != NULL );
memset( ctx, 0, sizeof( mbedtls_gcm_context ) );
}
/*
* Precompute small multiples of H, that is set
* HH[i] || HL[i] = H times i,
* where i is seen as a field element as in [MGV], ie high-order bits
* correspond to low powers of P. The result is stored in the same way, that
* is the high-order bit of HH corresponds to P^0 and the low-order bit of HL
* corresponds to P^127.
*/
static int gcm_gen_table( mbedtls_gcm_context *ctx )
{
int ret, i, j;
uint64_t hi, lo;
uint64_t vl, vh;
unsigned char h[16];
size_t olen = 0;
memset( h, 0, 16 );
if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, h, 16, h, &olen ) ) != 0 )
return( ret );
/* pack h as two 64-bits ints, big-endian */
GET_UINT32_BE( hi, h, 0 );
GET_UINT32_BE( lo, h, 4 );
vh = (uint64_t) hi << 32 | lo;
GET_UINT32_BE( hi, h, 8 );
GET_UINT32_BE( lo, h, 12 );
vl = (uint64_t) hi << 32 | lo;
/* 8 = 1000 corresponds to 1 in GF(2^128) */
ctx->HL[8] = vl;
ctx->HH[8] = vh;
#if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
/* With CLMUL support, we need only h, not the rest of the table */
if( mbedtls_aesni_has_support( MBEDTLS_AESNI_CLMUL ) )
return( 0 );
#endif
/* 0 corresponds to 0 in GF(2^128) */
ctx->HH[0] = 0;
ctx->HL[0] = 0;
for( i = 4; i > 0; i >>= 1 )
{
uint32_t T = ( vl & 1 ) * 0xe1000000U;
vl = ( vh << 63 ) | ( vl >> 1 );
vh = ( vh >> 1 ) ^ ( (uint64_t) T << 32);
ctx->HL[i] = vl;
ctx->HH[i] = vh;
}
for( i = 2; i <= 8; i *= 2 )
{
uint64_t *HiL = ctx->HL + i, *HiH = ctx->HH + i;
vh = *HiH;
vl = *HiL;
for( j = 1; j < i; j++ )
{
HiH[j] = vh ^ ctx->HH[j];
HiL[j] = vl ^ ctx->HL[j];
}
}
return( 0 );
}
int mbedtls_gcm_setkey( mbedtls_gcm_context *ctx,
mbedtls_cipher_id_t cipher,
const unsigned char *key,
unsigned int keybits )
{
int ret;
const mbedtls_cipher_info_t *cipher_info;
GCM_VALIDATE_RET( ctx != NULL );
GCM_VALIDATE_RET( key != NULL );
GCM_VALIDATE_RET( keybits == 128 || keybits == 192 || keybits == 256 );
cipher_info = mbedtls_cipher_info_from_values( cipher, keybits, MBEDTLS_MODE_ECB );
if( cipher_info == NULL )
return( MBEDTLS_ERR_GCM_BAD_INPUT );
if( cipher_info->block_size != 16 )
return( MBEDTLS_ERR_GCM_BAD_INPUT );
mbedtls_cipher_free( &ctx->cipher_ctx );
if( ( ret = mbedtls_cipher_setup( &ctx->cipher_ctx, cipher_info ) ) != 0 )
return( ret );
if( ( ret = mbedtls_cipher_setkey( &ctx->cipher_ctx, key, keybits,
MBEDTLS_ENCRYPT ) ) != 0 )
{
return( ret );
}
if( ( ret = gcm_gen_table( ctx ) ) != 0 )
return( ret );
return( 0 );
}
/*
* Shoup's method for multiplication use this table with
* last4[x] = x times P^128
* where x and last4[x] are seen as elements of GF(2^128) as in [MGV]
*/
static const uint64_t last4[16] =
{
0x0000, 0x1c20, 0x3840, 0x2460,
0x7080, 0x6ca0, 0x48c0, 0x54e0,
0xe100, 0xfd20, 0xd940, 0xc560,
0x9180, 0x8da0, 0xa9c0, 0xb5e0
};
/*
* Sets output to x times H using the precomputed tables.
* x and output are seen as elements of GF(2^128) as in [MGV].
*/
static void gcm_mult( mbedtls_gcm_context *ctx, const unsigned char x[16],
unsigned char output[16] )
{
int i = 0;
unsigned char lo, hi, rem;
uint64_t zh, zl;
#if defined(MBEDTLS_AESNI_C) && defined(MBEDTLS_HAVE_X86_64)
if( mbedtls_aesni_has_support( MBEDTLS_AESNI_CLMUL ) ) {
unsigned char h[16];
PUT_UINT32_BE( ctx->HH[8] >> 32, h, 0 );
PUT_UINT32_BE( ctx->HH[8], h, 4 );
PUT_UINT32_BE( ctx->HL[8] >> 32, h, 8 );
PUT_UINT32_BE( ctx->HL[8], h, 12 );
mbedtls_aesni_gcm_mult( output, x, h );
return;
}
#endif /* MBEDTLS_AESNI_C && MBEDTLS_HAVE_X86_64 */
lo = x[15] & 0xf;
zh = ctx->HH[lo];
zl = ctx->HL[lo];
for( i = 15; i >= 0; i-- )
{
lo = x[i] & 0xf;
hi = x[i] >> 4;
if( i != 15 )
{
rem = (unsigned char) zl & 0xf;
zl = ( zh << 60 ) | ( zl >> 4 );
zh = ( zh >> 4 );
zh ^= (uint64_t) last4[rem] << 48;
zh ^= ctx->HH[lo];
zl ^= ctx->HL[lo];
}
rem = (unsigned char) zl & 0xf;
zl = ( zh << 60 ) | ( zl >> 4 );
zh = ( zh >> 4 );
zh ^= (uint64_t) last4[rem] << 48;
zh ^= ctx->HH[hi];
zl ^= ctx->HL[hi];
}
PUT_UINT32_BE( zh >> 32, output, 0 );
PUT_UINT32_BE( zh, output, 4 );
PUT_UINT32_BE( zl >> 32, output, 8 );
PUT_UINT32_BE( zl, output, 12 );
}
int mbedtls_gcm_starts( mbedtls_gcm_context *ctx,
int mode,
const unsigned char *iv,
size_t iv_len,
const unsigned char *add,
size_t add_len )
{
int ret;
unsigned char work_buf[16];
size_t i;
const unsigned char *p;
size_t use_len, olen = 0;
GCM_VALIDATE_RET( ctx != NULL );
GCM_VALIDATE_RET( iv != NULL );
GCM_VALIDATE_RET( add_len == 0 || add != NULL );
/* IV and AD are limited to 2^64 bits, so 2^61 bytes */
/* IV is not allowed to be zero length */
if( iv_len == 0 ||
( (uint64_t) iv_len ) >> 61 != 0 ||
( (uint64_t) add_len ) >> 61 != 0 )
{
return( MBEDTLS_ERR_GCM_BAD_INPUT );
}
memset( ctx->y, 0x00, sizeof(ctx->y) );
memset( ctx->buf, 0x00, sizeof(ctx->buf) );
ctx->mode = mode;
ctx->len = 0;
ctx->add_len = 0;
if( iv_len == 12 )
{
memcpy( ctx->y, iv, iv_len );
ctx->y[15] = 1;
}
else
{
memset( work_buf, 0x00, 16 );
PUT_UINT32_BE( iv_len * 8, work_buf, 12 );
p = iv;
while( iv_len > 0 )
{
use_len = ( iv_len < 16 ) ? iv_len : 16;
for( i = 0; i < use_len; i++ )
ctx->y[i] ^= p[i];
gcm_mult( ctx, ctx->y, ctx->y );
iv_len -= use_len;
p += use_len;
}
for( i = 0; i < 16; i++ )
ctx->y[i] ^= work_buf[i];
gcm_mult( ctx, ctx->y, ctx->y );
}
if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctx->y, 16, ctx->base_ectr,
&olen ) ) != 0 )
{
return( ret );
}
ctx->add_len = add_len;
p = add;
while( add_len > 0 )
{
use_len = ( add_len < 16 ) ? add_len : 16;
for( i = 0; i < use_len; i++ )
ctx->buf[i] ^= p[i];
gcm_mult( ctx, ctx->buf, ctx->buf );
add_len -= use_len;
p += use_len;
}
return( 0 );
}
int mbedtls_gcm_update( mbedtls_gcm_context *ctx,
size_t length,
const unsigned char *input,
unsigned char *output )
{
int ret;
unsigned char ectr[16];
size_t i;
const unsigned char *p;
unsigned char *out_p = output;
size_t use_len, olen = 0;
GCM_VALIDATE_RET( ctx != NULL );
GCM_VALIDATE_RET( length == 0 || input != NULL );
GCM_VALIDATE_RET( length == 0 || output != NULL );
if( output > input && (size_t) ( output - input ) < length )
return( MBEDTLS_ERR_GCM_BAD_INPUT );
/* Total length is restricted to 2^39 - 256 bits, ie 2^36 - 2^5 bytes
* Also check for possible overflow */
if( ctx->len + length < ctx->len ||
(uint64_t) ctx->len + length > 0xFFFFFFFE0ull )
{
return( MBEDTLS_ERR_GCM_BAD_INPUT );
}
ctx->len += length;
p = input;
while( length > 0 )
{
use_len = ( length < 16 ) ? length : 16;
for( i = 16; i > 12; i-- )
if( ++ctx->y[i - 1] != 0 )
break;
if( ( ret = mbedtls_cipher_update( &ctx->cipher_ctx, ctx->y, 16, ectr,
&olen ) ) != 0 )
{
return( ret );
}
for( i = 0; i < use_len; i++ )
{
if( ctx->mode == MBEDTLS_GCM_DECRYPT )
ctx->buf[i] ^= p[i];
out_p[i] = ectr[i] ^ p[i];
if( ctx->mode == MBEDTLS_GCM_ENCRYPT )
ctx->buf[i] ^= out_p[i];
}
gcm_mult( ctx, ctx->buf, ctx->buf );
length -= use_len;
p += use_len;
out_p += use_len;
}
return( 0 );
}
int mbedtls_gcm_finish( mbedtls_gcm_context *ctx,
unsigned char *tag,
size_t tag_len )
{
unsigned char work_buf[16];
size_t i;
uint64_t orig_len;
uint64_t orig_add_len;
GCM_VALIDATE_RET( ctx != NULL );
GCM_VALIDATE_RET( tag != NULL );
orig_len = ctx->len * 8;
orig_add_len = ctx->add_len * 8;
if( tag_len > 16 || tag_len < 4 )
return( MBEDTLS_ERR_GCM_BAD_INPUT );
memcpy( tag, ctx->base_ectr, tag_len );
if( orig_len || orig_add_len )
{
memset( work_buf, 0x00, 16 );
PUT_UINT32_BE( ( orig_add_len >> 32 ), work_buf, 0 );
PUT_UINT32_BE( ( orig_add_len ), work_buf, 4 );
PUT_UINT32_BE( ( orig_len >> 32 ), work_buf, 8 );
PUT_UINT32_BE( ( orig_len ), work_buf, 12 );
for( i = 0; i < 16; i++ )
ctx->buf[i] ^= work_buf[i];
gcm_mult( ctx, ctx->buf, ctx->buf );
for( i = 0; i < tag_len; i++ )
tag[i] ^= ctx->buf[i];
}
return( 0 );
}
int mbedtls_gcm_crypt_and_tag( mbedtls_gcm_context *ctx,
int mode,
size_t length,
const unsigned char *iv,
size_t iv_len,
const unsigned char *add,
size_t add_len,
const unsigned char *input,
unsigned char *output,
size_t tag_len,
unsigned char *tag )
{
int ret;
GCM_VALIDATE_RET( ctx != NULL );
GCM_VALIDATE_RET( iv != NULL );
GCM_VALIDATE_RET( add_len == 0 || add != NULL );
GCM_VALIDATE_RET( length == 0 || input != NULL );
GCM_VALIDATE_RET( length == 0 || output != NULL );
GCM_VALIDATE_RET( tag != NULL );
if( ( ret = mbedtls_gcm_starts( ctx, mode, iv, iv_len, add, add_len ) ) != 0 )
return( ret );
if( ( ret = mbedtls_gcm_update( ctx, length, input, output ) ) != 0 )
return( ret );
if( ( ret = mbedtls_gcm_finish( ctx, tag, tag_len ) ) != 0 )
return( ret );
return( 0 );
}
int mbedtls_gcm_auth_decrypt( mbedtls_gcm_context *ctx,
size_t length,
const unsigned char *iv,
size_t iv_len,
const unsigned char *add,
size_t add_len,
const unsigned char *tag,
size_t tag_len,
const unsigned char *input,
unsigned char *output )
{
int ret;
unsigned char check_tag[16];
size_t i;
int diff;
GCM_VALIDATE_RET( ctx != NULL );
GCM_VALIDATE_RET( iv != NULL );
GCM_VALIDATE_RET( add_len == 0 || add != NULL );
GCM_VALIDATE_RET( tag != NULL );
GCM_VALIDATE_RET( length == 0 || input != NULL );
GCM_VALIDATE_RET( length == 0 || output != NULL );
if( ( ret = mbedtls_gcm_crypt_and_tag( ctx, MBEDTLS_GCM_DECRYPT, length,
iv, iv_len, add, add_len,
input, output, tag_len, check_tag ) ) != 0 )
{
return( ret );
}
/* Check tag in "constant-time" */
for( diff = 0, i = 0; i < tag_len; i++ )
diff |= tag[i] ^ check_tag[i];
if( diff != 0 )
{
mbedtls_platform_zeroize( output, length );
return( MBEDTLS_ERR_GCM_AUTH_FAILED );
}
return( 0 );
}
void mbedtls_gcm_free( mbedtls_gcm_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_cipher_free( &ctx->cipher_ctx );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_gcm_context ) );
}
#endif /* !MBEDTLS_GCM_ALT */
#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
/*
* AES-GCM test vectors from:
*
* http://csrc.nist.gov/groups/STM/cavp/documents/mac/gcmtestvectors.zip
*/
#define MAX_TESTS 6
static const int key_index[MAX_TESTS] =
{ 0, 0, 1, 1, 1, 1 };
static const unsigned char key[MAX_TESTS][32] =
{
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
{ 0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08,
0xfe, 0xff, 0xe9, 0x92, 0x86, 0x65, 0x73, 0x1c,
0x6d, 0x6a, 0x8f, 0x94, 0x67, 0x30, 0x83, 0x08 },
};
static const size_t iv_len[MAX_TESTS] =
{ 12, 12, 12, 12, 8, 60 };
static const int iv_index[MAX_TESTS] =
{ 0, 0, 1, 1, 1, 2 };
static const unsigned char iv[MAX_TESTS][64] =
{
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00 },
{ 0xca, 0xfe, 0xba, 0xbe, 0xfa, 0xce, 0xdb, 0xad,
0xde, 0xca, 0xf8, 0x88 },
{ 0x93, 0x13, 0x22, 0x5d, 0xf8, 0x84, 0x06, 0xe5,
0x55, 0x90, 0x9c, 0x5a, 0xff, 0x52, 0x69, 0xaa,
0x6a, 0x7a, 0x95, 0x38, 0x53, 0x4f, 0x7d, 0xa1,
0xe4, 0xc3, 0x03, 0xd2, 0xa3, 0x18, 0xa7, 0x28,
0xc3, 0xc0, 0xc9, 0x51, 0x56, 0x80, 0x95, 0x39,
0xfc, 0xf0, 0xe2, 0x42, 0x9a, 0x6b, 0x52, 0x54,
0x16, 0xae, 0xdb, 0xf5, 0xa0, 0xde, 0x6a, 0x57,
0xa6, 0x37, 0xb3, 0x9b },
};
static const size_t add_len[MAX_TESTS] =
{ 0, 0, 0, 20, 20, 20 };
static const int add_index[MAX_TESTS] =
{ 0, 0, 0, 1, 1, 1 };
static const unsigned char additional[MAX_TESTS][64] =
{
{ 0x00 },
{ 0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
0xfe, 0xed, 0xfa, 0xce, 0xde, 0xad, 0xbe, 0xef,
0xab, 0xad, 0xda, 0xd2 },
};
static const size_t pt_len[MAX_TESTS] =
{ 0, 16, 64, 60, 60, 60 };
static const int pt_index[MAX_TESTS] =
{ 0, 0, 1, 1, 1, 1 };
static const unsigned char pt[MAX_TESTS][64] =
{
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 },
{ 0xd9, 0x31, 0x32, 0x25, 0xf8, 0x84, 0x06, 0xe5,
0xa5, 0x59, 0x09, 0xc5, 0xaf, 0xf5, 0x26, 0x9a,
0x86, 0xa7, 0xa9, 0x53, 0x15, 0x34, 0xf7, 0xda,
0x2e, 0x4c, 0x30, 0x3d, 0x8a, 0x31, 0x8a, 0x72,
0x1c, 0x3c, 0x0c, 0x95, 0x95, 0x68, 0x09, 0x53,
0x2f, 0xcf, 0x0e, 0x24, 0x49, 0xa6, 0xb5, 0x25,
0xb1, 0x6a, 0xed, 0xf5, 0xaa, 0x0d, 0xe6, 0x57,
0xba, 0x63, 0x7b, 0x39, 0x1a, 0xaf, 0xd2, 0x55 },
};
static const unsigned char ct[MAX_TESTS * 3][64] =
{
{ 0x00 },
{ 0x03, 0x88, 0xda, 0xce, 0x60, 0xb6, 0xa3, 0x92,
0xf3, 0x28, 0xc2, 0xb9, 0x71, 0xb2, 0xfe, 0x78 },
{ 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,
0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c,
0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,
0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e,
0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,
0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05,
0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,
0x3d, 0x58, 0xe0, 0x91, 0x47, 0x3f, 0x59, 0x85 },
{ 0x42, 0x83, 0x1e, 0xc2, 0x21, 0x77, 0x74, 0x24,
0x4b, 0x72, 0x21, 0xb7, 0x84, 0xd0, 0xd4, 0x9c,
0xe3, 0xaa, 0x21, 0x2f, 0x2c, 0x02, 0xa4, 0xe0,
0x35, 0xc1, 0x7e, 0x23, 0x29, 0xac, 0xa1, 0x2e,
0x21, 0xd5, 0x14, 0xb2, 0x54, 0x66, 0x93, 0x1c,
0x7d, 0x8f, 0x6a, 0x5a, 0xac, 0x84, 0xaa, 0x05,
0x1b, 0xa3, 0x0b, 0x39, 0x6a, 0x0a, 0xac, 0x97,
0x3d, 0x58, 0xe0, 0x91 },
{ 0x61, 0x35, 0x3b, 0x4c, 0x28, 0x06, 0x93, 0x4a,
0x77, 0x7f, 0xf5, 0x1f, 0xa2, 0x2a, 0x47, 0x55,
0x69, 0x9b, 0x2a, 0x71, 0x4f, 0xcd, 0xc6, 0xf8,
0x37, 0x66, 0xe5, 0xf9, 0x7b, 0x6c, 0x74, 0x23,
0x73, 0x80, 0x69, 0x00, 0xe4, 0x9f, 0x24, 0xb2,
0x2b, 0x09, 0x75, 0x44, 0xd4, 0x89, 0x6b, 0x42,
0x49, 0x89, 0xb5, 0xe1, 0xeb, 0xac, 0x0f, 0x07,
0xc2, 0x3f, 0x45, 0x98 },
{ 0x8c, 0xe2, 0x49, 0x98, 0x62, 0x56, 0x15, 0xb6,
0x03, 0xa0, 0x33, 0xac, 0xa1, 0x3f, 0xb8, 0x94,
0xbe, 0x91, 0x12, 0xa5, 0xc3, 0xa2, 0x11, 0xa8,
0xba, 0x26, 0x2a, 0x3c, 0xca, 0x7e, 0x2c, 0xa7,
0x01, 0xe4, 0xa9, 0xa4, 0xfb, 0xa4, 0x3c, 0x90,
0xcc, 0xdc, 0xb2, 0x81, 0xd4, 0x8c, 0x7c, 0x6f,
0xd6, 0x28, 0x75, 0xd2, 0xac, 0xa4, 0x17, 0x03,
0x4c, 0x34, 0xae, 0xe5 },
{ 0x00 },
{ 0x98, 0xe7, 0x24, 0x7c, 0x07, 0xf0, 0xfe, 0x41,
0x1c, 0x26, 0x7e, 0x43, 0x84, 0xb0, 0xf6, 0x00 },
{ 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41,
0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57,
0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84,
0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c,
0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25,
0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47,
0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9,
0xcc, 0xda, 0x27, 0x10, 0xac, 0xad, 0xe2, 0x56 },
{ 0x39, 0x80, 0xca, 0x0b, 0x3c, 0x00, 0xe8, 0x41,
0xeb, 0x06, 0xfa, 0xc4, 0x87, 0x2a, 0x27, 0x57,
0x85, 0x9e, 0x1c, 0xea, 0xa6, 0xef, 0xd9, 0x84,
0x62, 0x85, 0x93, 0xb4, 0x0c, 0xa1, 0xe1, 0x9c,
0x7d, 0x77, 0x3d, 0x00, 0xc1, 0x44, 0xc5, 0x25,
0xac, 0x61, 0x9d, 0x18, 0xc8, 0x4a, 0x3f, 0x47,
0x18, 0xe2, 0x44, 0x8b, 0x2f, 0xe3, 0x24, 0xd9,
0xcc, 0xda, 0x27, 0x10 },
{ 0x0f, 0x10, 0xf5, 0x99, 0xae, 0x14, 0xa1, 0x54,
0xed, 0x24, 0xb3, 0x6e, 0x25, 0x32, 0x4d, 0xb8,
0xc5, 0x66, 0x63, 0x2e, 0xf2, 0xbb, 0xb3, 0x4f,
0x83, 0x47, 0x28, 0x0f, 0xc4, 0x50, 0x70, 0x57,
0xfd, 0xdc, 0x29, 0xdf, 0x9a, 0x47, 0x1f, 0x75,
0xc6, 0x65, 0x41, 0xd4, 0xd4, 0xda, 0xd1, 0xc9,
0xe9, 0x3a, 0x19, 0xa5, 0x8e, 0x8b, 0x47, 0x3f,
0xa0, 0xf0, 0x62, 0xf7 },
{ 0xd2, 0x7e, 0x88, 0x68, 0x1c, 0xe3, 0x24, 0x3c,
0x48, 0x30, 0x16, 0x5a, 0x8f, 0xdc, 0xf9, 0xff,
0x1d, 0xe9, 0xa1, 0xd8, 0xe6, 0xb4, 0x47, 0xef,
0x6e, 0xf7, 0xb7, 0x98, 0x28, 0x66, 0x6e, 0x45,
0x81, 0xe7, 0x90, 0x12, 0xaf, 0x34, 0xdd, 0xd9,
0xe2, 0xf0, 0x37, 0x58, 0x9b, 0x29, 0x2d, 0xb3,
0xe6, 0x7c, 0x03, 0x67, 0x45, 0xfa, 0x22, 0xe7,
0xe9, 0xb7, 0x37, 0x3b },
{ 0x00 },
{ 0xce, 0xa7, 0x40, 0x3d, 0x4d, 0x60, 0x6b, 0x6e,
0x07, 0x4e, 0xc5, 0xd3, 0xba, 0xf3, 0x9d, 0x18 },
{ 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07,
0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d,
0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9,
0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa,
0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d,
0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38,
0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a,
0xbc, 0xc9, 0xf6, 0x62, 0x89, 0x80, 0x15, 0xad },
{ 0x52, 0x2d, 0xc1, 0xf0, 0x99, 0x56, 0x7d, 0x07,
0xf4, 0x7f, 0x37, 0xa3, 0x2a, 0x84, 0x42, 0x7d,
0x64, 0x3a, 0x8c, 0xdc, 0xbf, 0xe5, 0xc0, 0xc9,
0x75, 0x98, 0xa2, 0xbd, 0x25, 0x55, 0xd1, 0xaa,
0x8c, 0xb0, 0x8e, 0x48, 0x59, 0x0d, 0xbb, 0x3d,
0xa7, 0xb0, 0x8b, 0x10, 0x56, 0x82, 0x88, 0x38,
0xc5, 0xf6, 0x1e, 0x63, 0x93, 0xba, 0x7a, 0x0a,
0xbc, 0xc9, 0xf6, 0x62 },
{ 0xc3, 0x76, 0x2d, 0xf1, 0xca, 0x78, 0x7d, 0x32,
0xae, 0x47, 0xc1, 0x3b, 0xf1, 0x98, 0x44, 0xcb,
0xaf, 0x1a, 0xe1, 0x4d, 0x0b, 0x97, 0x6a, 0xfa,
0xc5, 0x2f, 0xf7, 0xd7, 0x9b, 0xba, 0x9d, 0xe0,
0xfe, 0xb5, 0x82, 0xd3, 0x39, 0x34, 0xa4, 0xf0,
0x95, 0x4c, 0xc2, 0x36, 0x3b, 0xc7, 0x3f, 0x78,
0x62, 0xac, 0x43, 0x0e, 0x64, 0xab, 0xe4, 0x99,
0xf4, 0x7c, 0x9b, 0x1f },
{ 0x5a, 0x8d, 0xef, 0x2f, 0x0c, 0x9e, 0x53, 0xf1,
0xf7, 0x5d, 0x78, 0x53, 0x65, 0x9e, 0x2a, 0x20,
0xee, 0xb2, 0xb2, 0x2a, 0xaf, 0xde, 0x64, 0x19,
0xa0, 0x58, 0xab, 0x4f, 0x6f, 0x74, 0x6b, 0xf4,
0x0f, 0xc0, 0xc3, 0xb7, 0x80, 0xf2, 0x44, 0x45,
0x2d, 0xa3, 0xeb, 0xf1, 0xc5, 0xd8, 0x2c, 0xde,
0xa2, 0x41, 0x89, 0x97, 0x20, 0x0e, 0xf8, 0x2e,
0x44, 0xae, 0x7e, 0x3f },
};
static const unsigned char tag[MAX_TESTS * 3][16] =
{
{ 0x58, 0xe2, 0xfc, 0xce, 0xfa, 0x7e, 0x30, 0x61,
0x36, 0x7f, 0x1d, 0x57, 0xa4, 0xe7, 0x45, 0x5a },
{ 0xab, 0x6e, 0x47, 0xd4, 0x2c, 0xec, 0x13, 0xbd,
0xf5, 0x3a, 0x67, 0xb2, 0x12, 0x57, 0xbd, 0xdf },
{ 0x4d, 0x5c, 0x2a, 0xf3, 0x27, 0xcd, 0x64, 0xa6,
0x2c, 0xf3, 0x5a, 0xbd, 0x2b, 0xa6, 0xfa, 0xb4 },
{ 0x5b, 0xc9, 0x4f, 0xbc, 0x32, 0x21, 0xa5, 0xdb,
0x94, 0xfa, 0xe9, 0x5a, 0xe7, 0x12, 0x1a, 0x47 },
{ 0x36, 0x12, 0xd2, 0xe7, 0x9e, 0x3b, 0x07, 0x85,
0x56, 0x1b, 0xe1, 0x4a, 0xac, 0xa2, 0xfc, 0xcb },
{ 0x61, 0x9c, 0xc5, 0xae, 0xff, 0xfe, 0x0b, 0xfa,
0x46, 0x2a, 0xf4, 0x3c, 0x16, 0x99, 0xd0, 0x50 },
{ 0xcd, 0x33, 0xb2, 0x8a, 0xc7, 0x73, 0xf7, 0x4b,
0xa0, 0x0e, 0xd1, 0xf3, 0x12, 0x57, 0x24, 0x35 },
{ 0x2f, 0xf5, 0x8d, 0x80, 0x03, 0x39, 0x27, 0xab,
0x8e, 0xf4, 0xd4, 0x58, 0x75, 0x14, 0xf0, 0xfb },
{ 0x99, 0x24, 0xa7, 0xc8, 0x58, 0x73, 0x36, 0xbf,
0xb1, 0x18, 0x02, 0x4d, 0xb8, 0x67, 0x4a, 0x14 },
{ 0x25, 0x19, 0x49, 0x8e, 0x80, 0xf1, 0x47, 0x8f,
0x37, 0xba, 0x55, 0xbd, 0x6d, 0x27, 0x61, 0x8c },
{ 0x65, 0xdc, 0xc5, 0x7f, 0xcf, 0x62, 0x3a, 0x24,
0x09, 0x4f, 0xcc, 0xa4, 0x0d, 0x35, 0x33, 0xf8 },
{ 0xdc, 0xf5, 0x66, 0xff, 0x29, 0x1c, 0x25, 0xbb,
0xb8, 0x56, 0x8f, 0xc3, 0xd3, 0x76, 0xa6, 0xd9 },
{ 0x53, 0x0f, 0x8a, 0xfb, 0xc7, 0x45, 0x36, 0xb9,
0xa9, 0x63, 0xb4, 0xf1, 0xc4, 0xcb, 0x73, 0x8b },
{ 0xd0, 0xd1, 0xc8, 0xa7, 0x99, 0x99, 0x6b, 0xf0,
0x26, 0x5b, 0x98, 0xb5, 0xd4, 0x8a, 0xb9, 0x19 },
{ 0xb0, 0x94, 0xda, 0xc5, 0xd9, 0x34, 0x71, 0xbd,
0xec, 0x1a, 0x50, 0x22, 0x70, 0xe3, 0xcc, 0x6c },
{ 0x76, 0xfc, 0x6e, 0xce, 0x0f, 0x4e, 0x17, 0x68,
0xcd, 0xdf, 0x88, 0x53, 0xbb, 0x2d, 0x55, 0x1b },
{ 0x3a, 0x33, 0x7d, 0xbf, 0x46, 0xa7, 0x92, 0xc4,
0x5e, 0x45, 0x49, 0x13, 0xfe, 0x2e, 0xa8, 0xf2 },
{ 0xa4, 0x4a, 0x82, 0x66, 0xee, 0x1c, 0x8e, 0xb0,
0xc8, 0xb5, 0xd4, 0xcf, 0x5a, 0xe9, 0xf1, 0x9a },
};
int mbedtls_gcm_self_test( int verbose )
{
mbedtls_gcm_context ctx;
unsigned char buf[64];
unsigned char tag_buf[16];
int i, j, ret;
mbedtls_cipher_id_t cipher = MBEDTLS_CIPHER_ID_AES;
for( j = 0; j < 3; j++ )
{
int key_len = 128 + 64 * j;
for( i = 0; i < MAX_TESTS; i++ )
{
mbedtls_gcm_init( &ctx );
if( verbose != 0 )
mbedtls_printf( " AES-GCM-%3d #%d (%s): ",
key_len, i, "enc" );
ret = mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]],
key_len );
/*
* AES-192 is an optional feature that may be unavailable when
* there is an alternative underlying implementation i.e. when
* MBEDTLS_AES_ALT is defined.
*/
if( ret == MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED && key_len == 192 )
{
mbedtls_printf( "skipped\n" );
break;
}
else if( ret != 0 )
{
goto exit;
}
ret = mbedtls_gcm_crypt_and_tag( &ctx, MBEDTLS_GCM_ENCRYPT,
pt_len[i],
iv[iv_index[i]], iv_len[i],
additional[add_index[i]], add_len[i],
pt[pt_index[i]], buf, 16, tag_buf );
if( ret != 0 )
goto exit;
if ( memcmp( buf, ct[j * 6 + i], pt_len[i] ) != 0 ||
memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
{
ret = 1;
goto exit;
}
mbedtls_gcm_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
mbedtls_gcm_init( &ctx );
if( verbose != 0 )
mbedtls_printf( " AES-GCM-%3d #%d (%s): ",
key_len, i, "dec" );
ret = mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]],
key_len );
if( ret != 0 )
goto exit;
ret = mbedtls_gcm_crypt_and_tag( &ctx, MBEDTLS_GCM_DECRYPT,
pt_len[i],
iv[iv_index[i]], iv_len[i],
additional[add_index[i]], add_len[i],
ct[j * 6 + i], buf, 16, tag_buf );
if( ret != 0 )
goto exit;
if( memcmp( buf, pt[pt_index[i]], pt_len[i] ) != 0 ||
memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
{
ret = 1;
goto exit;
}
mbedtls_gcm_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
mbedtls_gcm_init( &ctx );
if( verbose != 0 )
mbedtls_printf( " AES-GCM-%3d #%d split (%s): ",
key_len, i, "enc" );
ret = mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]],
key_len );
if( ret != 0 )
goto exit;
ret = mbedtls_gcm_starts( &ctx, MBEDTLS_GCM_ENCRYPT,
iv[iv_index[i]], iv_len[i],
additional[add_index[i]], add_len[i] );
if( ret != 0 )
goto exit;
if( pt_len[i] > 32 )
{
size_t rest_len = pt_len[i] - 32;
ret = mbedtls_gcm_update( &ctx, 32, pt[pt_index[i]], buf );
if( ret != 0 )
goto exit;
ret = mbedtls_gcm_update( &ctx, rest_len, pt[pt_index[i]] + 32,
buf + 32 );
if( ret != 0 )
goto exit;
}
else
{
ret = mbedtls_gcm_update( &ctx, pt_len[i], pt[pt_index[i]], buf );
if( ret != 0 )
goto exit;
}
ret = mbedtls_gcm_finish( &ctx, tag_buf, 16 );
if( ret != 0 )
goto exit;
if( memcmp( buf, ct[j * 6 + i], pt_len[i] ) != 0 ||
memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
{
ret = 1;
goto exit;
}
mbedtls_gcm_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
mbedtls_gcm_init( &ctx );
if( verbose != 0 )
mbedtls_printf( " AES-GCM-%3d #%d split (%s): ",
key_len, i, "dec" );
ret = mbedtls_gcm_setkey( &ctx, cipher, key[key_index[i]],
key_len );
if( ret != 0 )
goto exit;
ret = mbedtls_gcm_starts( &ctx, MBEDTLS_GCM_DECRYPT,
iv[iv_index[i]], iv_len[i],
additional[add_index[i]], add_len[i] );
if( ret != 0 )
goto exit;
if( pt_len[i] > 32 )
{
size_t rest_len = pt_len[i] - 32;
ret = mbedtls_gcm_update( &ctx, 32, ct[j * 6 + i], buf );
if( ret != 0 )
goto exit;
ret = mbedtls_gcm_update( &ctx, rest_len, ct[j * 6 + i] + 32,
buf + 32 );
if( ret != 0 )
goto exit;
}
else
{
ret = mbedtls_gcm_update( &ctx, pt_len[i], ct[j * 6 + i],
buf );
if( ret != 0 )
goto exit;
}
ret = mbedtls_gcm_finish( &ctx, tag_buf, 16 );
if( ret != 0 )
goto exit;
if( memcmp( buf, pt[pt_index[i]], pt_len[i] ) != 0 ||
memcmp( tag_buf, tag[j * 6 + i], 16 ) != 0 )
{
ret = 1;
goto exit;
}
mbedtls_gcm_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
}
if( verbose != 0 )
mbedtls_printf( "\n" );
ret = 0;
exit:
if( ret != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
mbedtls_gcm_free( &ctx );
}
return( ret );
}
#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
#endif /* MBEDTLS_GCM_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/gcm.c | C | apache-2.0 | 31,855 |
/**
* \brief HAVEGE: HArdware Volatile Entropy Gathering and Expansion
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The HAVEGE RNG was designed by Andre Seznec in 2002.
*
* http://www.irisa.fr/caps/projects/hipsor/publi.php
*
* Contact: seznec(at)irisa_dot_fr - orocheco(at)irisa_dot_fr
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_HAVEGE_C)
#include "mbedtls/havege.h"
#include "mbedtls/timing.h"
#include "mbedtls/platform_util.h"
#include <string.h>
/* ------------------------------------------------------------------------
* On average, one iteration accesses two 8-word blocks in the havege WALK
* table, and generates 16 words in the RES array.
*
* The data read in the WALK table is updated and permuted after each use.
* The result of the hardware clock counter read is used for this update.
*
* 25 conditional tests are present. The conditional tests are grouped in
* two nested groups of 12 conditional tests and 1 test that controls the
* permutation; on average, there should be 6 tests executed and 3 of them
* should be mispredicted.
* ------------------------------------------------------------------------
*/
#define SWAP(X,Y) { int *T = X; X = Y; Y = T; }
#define TST1_ENTER if( PTEST & 1 ) { PTEST ^= 3; PTEST >>= 1;
#define TST2_ENTER if( PTEST & 1 ) { PTEST ^= 3; PTEST >>= 1;
#define TST1_LEAVE U1++; }
#define TST2_LEAVE U2++; }
#define ONE_ITERATION \
\
PTEST = PT1 >> 20; \
\
TST1_ENTER TST1_ENTER TST1_ENTER TST1_ENTER \
TST1_ENTER TST1_ENTER TST1_ENTER TST1_ENTER \
TST1_ENTER TST1_ENTER TST1_ENTER TST1_ENTER \
\
TST1_LEAVE TST1_LEAVE TST1_LEAVE TST1_LEAVE \
TST1_LEAVE TST1_LEAVE TST1_LEAVE TST1_LEAVE \
TST1_LEAVE TST1_LEAVE TST1_LEAVE TST1_LEAVE \
\
PTX = (PT1 >> 18) & 7; \
PT1 &= 0x1FFF; \
PT2 &= 0x1FFF; \
CLK = (int) mbedtls_timing_hardclock(); \
\
i = 0; \
A = &WALK[PT1 ]; RES[i++] ^= *A; \
B = &WALK[PT2 ]; RES[i++] ^= *B; \
C = &WALK[PT1 ^ 1]; RES[i++] ^= *C; \
D = &WALK[PT2 ^ 4]; RES[i++] ^= *D; \
\
IN = (*A >> (1)) ^ (*A << (31)) ^ CLK; \
*A = (*B >> (2)) ^ (*B << (30)) ^ CLK; \
*B = IN ^ U1; \
*C = (*C >> (3)) ^ (*C << (29)) ^ CLK; \
*D = (*D >> (4)) ^ (*D << (28)) ^ CLK; \
\
A = &WALK[PT1 ^ 2]; RES[i++] ^= *A; \
B = &WALK[PT2 ^ 2]; RES[i++] ^= *B; \
C = &WALK[PT1 ^ 3]; RES[i++] ^= *C; \
D = &WALK[PT2 ^ 6]; RES[i++] ^= *D; \
\
if( PTEST & 1 ) SWAP( A, C ); \
\
IN = (*A >> (5)) ^ (*A << (27)) ^ CLK; \
*A = (*B >> (6)) ^ (*B << (26)) ^ CLK; \
*B = IN; CLK = (int) mbedtls_timing_hardclock(); \
*C = (*C >> (7)) ^ (*C << (25)) ^ CLK; \
*D = (*D >> (8)) ^ (*D << (24)) ^ CLK; \
\
A = &WALK[PT1 ^ 4]; \
B = &WALK[PT2 ^ 1]; \
\
PTEST = PT2 >> 1; \
\
PT2 = (RES[(i - 8) ^ PTY] ^ WALK[PT2 ^ PTY ^ 7]); \
PT2 = ((PT2 & 0x1FFF) & (~8)) ^ ((PT1 ^ 8) & 0x8); \
PTY = (PT2 >> 10) & 7; \
\
TST2_ENTER TST2_ENTER TST2_ENTER TST2_ENTER \
TST2_ENTER TST2_ENTER TST2_ENTER TST2_ENTER \
TST2_ENTER TST2_ENTER TST2_ENTER TST2_ENTER \
\
TST2_LEAVE TST2_LEAVE TST2_LEAVE TST2_LEAVE \
TST2_LEAVE TST2_LEAVE TST2_LEAVE TST2_LEAVE \
TST2_LEAVE TST2_LEAVE TST2_LEAVE TST2_LEAVE \
\
C = &WALK[PT1 ^ 5]; \
D = &WALK[PT2 ^ 5]; \
\
RES[i++] ^= *A; \
RES[i++] ^= *B; \
RES[i++] ^= *C; \
RES[i++] ^= *D; \
\
IN = (*A >> ( 9)) ^ (*A << (23)) ^ CLK; \
*A = (*B >> (10)) ^ (*B << (22)) ^ CLK; \
*B = IN ^ U2; \
*C = (*C >> (11)) ^ (*C << (21)) ^ CLK; \
*D = (*D >> (12)) ^ (*D << (20)) ^ CLK; \
\
A = &WALK[PT1 ^ 6]; RES[i++] ^= *A; \
B = &WALK[PT2 ^ 3]; RES[i++] ^= *B; \
C = &WALK[PT1 ^ 7]; RES[i++] ^= *C; \
D = &WALK[PT2 ^ 7]; RES[i++] ^= *D; \
\
IN = (*A >> (13)) ^ (*A << (19)) ^ CLK; \
*A = (*B >> (14)) ^ (*B << (18)) ^ CLK; \
*B = IN; \
*C = (*C >> (15)) ^ (*C << (17)) ^ CLK; \
*D = (*D >> (16)) ^ (*D << (16)) ^ CLK; \
\
PT1 = ( RES[( i - 8 ) ^ PTX] ^ \
WALK[PT1 ^ PTX ^ 7] ) & (~1); \
PT1 ^= (PT2 ^ 0x10) & 0x10; \
\
for( n++, i = 0; i < 16; i++ ) \
hs->pool[n % MBEDTLS_HAVEGE_COLLECT_SIZE] ^= RES[i];
/*
* Entropy gathering function
*/
static void havege_fill( mbedtls_havege_state *hs )
{
int i, n = 0;
int U1, U2, *A, *B, *C, *D;
int PT1, PT2, *WALK, RES[16];
int PTX, PTY, CLK, PTEST, IN;
WALK = hs->WALK;
PT1 = hs->PT1;
PT2 = hs->PT2;
PTX = U1 = 0;
PTY = U2 = 0;
(void)PTX;
memset( RES, 0, sizeof( RES ) );
while( n < MBEDTLS_HAVEGE_COLLECT_SIZE * 4 )
{
ONE_ITERATION
ONE_ITERATION
ONE_ITERATION
ONE_ITERATION
}
hs->PT1 = PT1;
hs->PT2 = PT2;
hs->offset[0] = 0;
hs->offset[1] = MBEDTLS_HAVEGE_COLLECT_SIZE / 2;
}
/*
* HAVEGE initialization
*/
void mbedtls_havege_init( mbedtls_havege_state *hs )
{
memset( hs, 0, sizeof( mbedtls_havege_state ) );
havege_fill( hs );
}
void mbedtls_havege_free( mbedtls_havege_state *hs )
{
if( hs == NULL )
return;
mbedtls_platform_zeroize( hs, sizeof( mbedtls_havege_state ) );
}
/*
* HAVEGE rand function
*/
int mbedtls_havege_random( void *p_rng, unsigned char *buf, size_t len )
{
int val;
size_t use_len;
mbedtls_havege_state *hs = (mbedtls_havege_state *) p_rng;
unsigned char *p = buf;
while( len > 0 )
{
use_len = len;
if( use_len > sizeof(int) )
use_len = sizeof(int);
if( hs->offset[1] >= MBEDTLS_HAVEGE_COLLECT_SIZE )
havege_fill( hs );
val = hs->pool[hs->offset[0]++];
val ^= hs->pool[hs->offset[1]++];
memcpy( p, &val, use_len );
len -= use_len;
p += use_len;
}
return( 0 );
}
#endif /* MBEDTLS_HAVEGE_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/havege.c | C | apache-2.0 | 9,052 |
/*
* HKDF implementation -- RFC 5869
*
* Copyright (C) 2016-2018, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_HKDF_C)
#include <string.h>
#include "mbedtls/hkdf.h"
#include "mbedtls/platform_util.h"
int mbedtls_hkdf( const mbedtls_md_info_t *md, const unsigned char *salt,
size_t salt_len, const unsigned char *ikm, size_t ikm_len,
const unsigned char *info, size_t info_len,
unsigned char *okm, size_t okm_len )
{
int ret;
unsigned char prk[MBEDTLS_MD_MAX_SIZE];
ret = mbedtls_hkdf_extract( md, salt, salt_len, ikm, ikm_len, prk );
if( ret == 0 )
{
ret = mbedtls_hkdf_expand( md, prk, mbedtls_md_get_size( md ),
info, info_len, okm, okm_len );
}
mbedtls_platform_zeroize( prk, sizeof( prk ) );
return( ret );
}
int mbedtls_hkdf_extract( const mbedtls_md_info_t *md,
const unsigned char *salt, size_t salt_len,
const unsigned char *ikm, size_t ikm_len,
unsigned char *prk )
{
unsigned char null_salt[MBEDTLS_MD_MAX_SIZE] = { '\0' };
if( salt == NULL )
{
size_t hash_len;
if( salt_len != 0 )
{
return MBEDTLS_ERR_HKDF_BAD_INPUT_DATA;
}
hash_len = mbedtls_md_get_size( md );
if( hash_len == 0 )
{
return MBEDTLS_ERR_HKDF_BAD_INPUT_DATA;
}
salt = null_salt;
salt_len = hash_len;
}
return( mbedtls_md_hmac( md, salt, salt_len, ikm, ikm_len, prk ) );
}
int mbedtls_hkdf_expand( const mbedtls_md_info_t *md, const unsigned char *prk,
size_t prk_len, const unsigned char *info,
size_t info_len, unsigned char *okm, size_t okm_len )
{
size_t hash_len;
size_t where = 0;
size_t n;
size_t t_len = 0;
size_t i;
int ret = 0;
mbedtls_md_context_t ctx;
unsigned char t[MBEDTLS_MD_MAX_SIZE];
if( okm == NULL )
{
return( MBEDTLS_ERR_HKDF_BAD_INPUT_DATA );
}
hash_len = mbedtls_md_get_size( md );
if( prk_len < hash_len || hash_len == 0 )
{
return( MBEDTLS_ERR_HKDF_BAD_INPUT_DATA );
}
if( info == NULL )
{
info = (const unsigned char *) "";
info_len = 0;
}
n = okm_len / hash_len;
if( (okm_len % hash_len) != 0 )
{
n++;
}
/*
* Per RFC 5869 Section 2.3, okm_len must not exceed
* 255 times the hash length
*/
if( n > 255 )
{
return( MBEDTLS_ERR_HKDF_BAD_INPUT_DATA );
}
mbedtls_md_init( &ctx );
if( (ret = mbedtls_md_setup( &ctx, md, 1) ) != 0 )
{
goto exit;
}
/*
* Compute T = T(1) | T(2) | T(3) | ... | T(N)
* Where T(N) is defined in RFC 5869 Section 2.3
*/
for( i = 1; i <= n; i++ )
{
size_t num_to_copy;
unsigned char c = i & 0xff;
ret = mbedtls_md_hmac_starts( &ctx, prk, prk_len );
if( ret != 0 )
{
goto exit;
}
ret = mbedtls_md_hmac_update( &ctx, t, t_len );
if( ret != 0 )
{
goto exit;
}
ret = mbedtls_md_hmac_update( &ctx, info, info_len );
if( ret != 0 )
{
goto exit;
}
/* The constant concatenated to the end of each T(n) is a single octet.
* */
ret = mbedtls_md_hmac_update( &ctx, &c, 1 );
if( ret != 0 )
{
goto exit;
}
ret = mbedtls_md_hmac_finish( &ctx, t );
if( ret != 0 )
{
goto exit;
}
num_to_copy = i != n ? hash_len : okm_len - where;
memcpy( okm + where, t, num_to_copy );
where += hash_len;
t_len = hash_len;
}
exit:
mbedtls_md_free( &ctx );
mbedtls_platform_zeroize( t, sizeof( t ) );
return( ret );
}
#endif /* MBEDTLS_HKDF_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/hkdf.c | C | apache-2.0 | 4,755 |
/*
* HMAC_DRBG implementation (NIST SP 800-90)
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The NIST SP 800-90A DRBGs are described in the following publication.
* http://csrc.nist.gov/publications/nistpubs/800-90A/SP800-90A.pdf
* References below are based on rev. 1 (January 2012).
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_HMAC_DRBG_C)
#include "mbedtls/hmac_drbg.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_FS_IO)
#include <stdio.h>
#endif
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_PLATFORM_C */
/*
* HMAC_DRBG context initialization
*/
void mbedtls_hmac_drbg_init( mbedtls_hmac_drbg_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_hmac_drbg_context ) );
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_init( &ctx->mutex );
#endif
}
/*
* HMAC_DRBG update, using optional additional data (10.1.2.2)
*/
int mbedtls_hmac_drbg_update_ret( mbedtls_hmac_drbg_context *ctx,
const unsigned char *additional,
size_t add_len )
{
size_t md_len = mbedtls_md_get_size( ctx->md_ctx.md_info );
unsigned char rounds = ( additional != NULL && add_len != 0 ) ? 2 : 1;
unsigned char sep[1];
unsigned char K[MBEDTLS_MD_MAX_SIZE];
int ret = 0;
for( sep[0] = 0; sep[0] < rounds; sep[0]++ )
{
/* Step 1 or 4 */
if( ( ret = mbedtls_md_hmac_reset( &ctx->md_ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_hmac_update( &ctx->md_ctx,
ctx->V, md_len ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_hmac_update( &ctx->md_ctx,
sep, 1 ) ) != 0 )
goto exit;
if( rounds == 2 )
{
if( ( ret = mbedtls_md_hmac_update( &ctx->md_ctx,
additional, add_len ) ) != 0 )
goto exit;
}
if( ( ret = mbedtls_md_hmac_finish( &ctx->md_ctx, K ) ) != 0 )
goto exit;
/* Step 2 or 5 */
if( ( ret = mbedtls_md_hmac_starts( &ctx->md_ctx, K, md_len ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_hmac_update( &ctx->md_ctx,
ctx->V, md_len ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_hmac_finish( &ctx->md_ctx, ctx->V ) ) != 0 )
goto exit;
}
exit:
mbedtls_platform_zeroize( K, sizeof( K ) );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_hmac_drbg_update( mbedtls_hmac_drbg_context *ctx,
const unsigned char *additional,
size_t add_len )
{
(void) mbedtls_hmac_drbg_update_ret( ctx, additional, add_len );
}
#endif /* MBEDTLS_DEPRECATED_REMOVED */
/*
* Simplified HMAC_DRBG initialisation (for use with deterministic ECDSA)
*/
int mbedtls_hmac_drbg_seed_buf( mbedtls_hmac_drbg_context *ctx,
const mbedtls_md_info_t * md_info,
const unsigned char *data, size_t data_len )
{
int ret;
if( ( ret = mbedtls_md_setup( &ctx->md_ctx, md_info, 1 ) ) != 0 )
return( ret );
/*
* Set initial working state.
* Use the V memory location, which is currently all 0, to initialize the
* MD context with an all-zero key. Then set V to its initial value.
*/
if( ( ret = mbedtls_md_hmac_starts( &ctx->md_ctx, ctx->V,
mbedtls_md_get_size( md_info ) ) ) != 0 )
return( ret );
memset( ctx->V, 0x01, mbedtls_md_get_size( md_info ) );
if( ( ret = mbedtls_hmac_drbg_update_ret( ctx, data, data_len ) ) != 0 )
return( ret );
return( 0 );
}
/*
* HMAC_DRBG reseeding: 10.1.2.4 (arabic) + 9.2 (Roman)
*/
int mbedtls_hmac_drbg_reseed( mbedtls_hmac_drbg_context *ctx,
const unsigned char *additional, size_t len )
{
unsigned char seed[MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT];
size_t seedlen;
int ret;
/* III. Check input length */
if( len > MBEDTLS_HMAC_DRBG_MAX_INPUT ||
ctx->entropy_len + len > MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT )
{
return( MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG );
}
memset( seed, 0, MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT );
/* IV. Gather entropy_len bytes of entropy for the seed */
if( ( ret = ctx->f_entropy( ctx->p_entropy,
seed, ctx->entropy_len ) ) != 0 )
return( MBEDTLS_ERR_HMAC_DRBG_ENTROPY_SOURCE_FAILED );
seedlen = ctx->entropy_len;
/* 1. Concatenate entropy and additional data if any */
if( additional != NULL && len != 0 )
{
memcpy( seed + seedlen, additional, len );
seedlen += len;
}
/* 2. Update state */
if( ( ret = mbedtls_hmac_drbg_update_ret( ctx, seed, seedlen ) ) != 0 )
goto exit;
/* 3. Reset reseed_counter */
ctx->reseed_counter = 1;
exit:
/* 4. Done */
mbedtls_platform_zeroize( seed, seedlen );
return( ret );
}
/*
* HMAC_DRBG initialisation (10.1.2.3 + 9.1)
*/
int mbedtls_hmac_drbg_seed( mbedtls_hmac_drbg_context *ctx,
const mbedtls_md_info_t * md_info,
int (*f_entropy)(void *, unsigned char *, size_t),
void *p_entropy,
const unsigned char *custom,
size_t len )
{
int ret;
size_t entropy_len, md_size;
if( ( ret = mbedtls_md_setup( &ctx->md_ctx, md_info, 1 ) ) != 0 )
return( ret );
md_size = mbedtls_md_get_size( md_info );
/*
* Set initial working state.
* Use the V memory location, which is currently all 0, to initialize the
* MD context with an all-zero key. Then set V to its initial value.
*/
if( ( ret = mbedtls_md_hmac_starts( &ctx->md_ctx, ctx->V, md_size ) ) != 0 )
return( ret );
memset( ctx->V, 0x01, md_size );
ctx->f_entropy = f_entropy;
ctx->p_entropy = p_entropy;
ctx->reseed_interval = MBEDTLS_HMAC_DRBG_RESEED_INTERVAL;
/*
* See SP800-57 5.6.1 (p. 65-66) for the security strength provided by
* each hash function, then according to SP800-90A rev1 10.1 table 2,
* min_entropy_len (in bits) is security_strength.
*
* (This also matches the sizes used in the NIST test vectors.)
*/
entropy_len = md_size <= 20 ? 16 : /* 160-bits hash -> 128 bits */
md_size <= 28 ? 24 : /* 224-bits hash -> 192 bits */
32; /* better (256+) -> 256 bits */
/*
* For initialisation, use more entropy to emulate a nonce
* (Again, matches test vectors.)
*/
ctx->entropy_len = entropy_len * 3 / 2;
if( ( ret = mbedtls_hmac_drbg_reseed( ctx, custom, len ) ) != 0 )
return( ret );
ctx->entropy_len = entropy_len;
return( 0 );
}
/*
* Set prediction resistance
*/
void mbedtls_hmac_drbg_set_prediction_resistance( mbedtls_hmac_drbg_context *ctx,
int resistance )
{
ctx->prediction_resistance = resistance;
}
/*
* Set entropy length grabbed for reseeds
*/
void mbedtls_hmac_drbg_set_entropy_len( mbedtls_hmac_drbg_context *ctx, size_t len )
{
ctx->entropy_len = len;
}
/*
* Set reseed interval
*/
void mbedtls_hmac_drbg_set_reseed_interval( mbedtls_hmac_drbg_context *ctx, int interval )
{
ctx->reseed_interval = interval;
}
/*
* HMAC_DRBG random function with optional additional data:
* 10.1.2.5 (arabic) + 9.3 (Roman)
*/
int mbedtls_hmac_drbg_random_with_add( void *p_rng,
unsigned char *output, size_t out_len,
const unsigned char *additional, size_t add_len )
{
int ret;
mbedtls_hmac_drbg_context *ctx = (mbedtls_hmac_drbg_context *) p_rng;
size_t md_len = mbedtls_md_get_size( ctx->md_ctx.md_info );
size_t left = out_len;
unsigned char *out = output;
/* II. Check request length */
if( out_len > MBEDTLS_HMAC_DRBG_MAX_REQUEST )
return( MBEDTLS_ERR_HMAC_DRBG_REQUEST_TOO_BIG );
/* III. Check input length */
if( add_len > MBEDTLS_HMAC_DRBG_MAX_INPUT )
return( MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG );
/* 1. (aka VII and IX) Check reseed counter and PR */
if( ctx->f_entropy != NULL && /* For no-reseeding instances */
( ctx->prediction_resistance == MBEDTLS_HMAC_DRBG_PR_ON ||
ctx->reseed_counter > ctx->reseed_interval ) )
{
if( ( ret = mbedtls_hmac_drbg_reseed( ctx, additional, add_len ) ) != 0 )
return( ret );
add_len = 0; /* VII.4 */
}
/* 2. Use additional data if any */
if( additional != NULL && add_len != 0 )
{
if( ( ret = mbedtls_hmac_drbg_update_ret( ctx,
additional, add_len ) ) != 0 )
goto exit;
}
/* 3, 4, 5. Generate bytes */
while( left != 0 )
{
size_t use_len = left > md_len ? md_len : left;
if( ( ret = mbedtls_md_hmac_reset( &ctx->md_ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_hmac_update( &ctx->md_ctx,
ctx->V, md_len ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_hmac_finish( &ctx->md_ctx, ctx->V ) ) != 0 )
goto exit;
use_len = (use_len < MBEDTLS_MD_MAX_SIZE) ? use_len : MBEDTLS_MD_MAX_SIZE;
memcpy( out, ctx->V, use_len );
out += use_len;
left -= use_len;
}
/* 6. Update */
if( ( ret = mbedtls_hmac_drbg_update_ret( ctx,
additional, add_len ) ) != 0 )
goto exit;
/* 7. Update reseed counter */
ctx->reseed_counter++;
exit:
/* 8. Done */
return( ret );
}
/*
* HMAC_DRBG random function
*/
int mbedtls_hmac_drbg_random( void *p_rng, unsigned char *output, size_t out_len )
{
int ret;
mbedtls_hmac_drbg_context *ctx = (mbedtls_hmac_drbg_context *) p_rng;
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
ret = mbedtls_hmac_drbg_random_with_add( ctx, output, out_len, NULL, 0 );
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
/*
* Free an HMAC_DRBG context
*/
void mbedtls_hmac_drbg_free( mbedtls_hmac_drbg_context *ctx )
{
if( ctx == NULL )
return;
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_free( &ctx->mutex );
#endif
mbedtls_md_free( &ctx->md_ctx );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_hmac_drbg_context ) );
}
#if defined(MBEDTLS_FS_IO)
int mbedtls_hmac_drbg_write_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path )
{
int ret;
FILE *f;
unsigned char buf[ MBEDTLS_HMAC_DRBG_MAX_INPUT ];
if( ( f = fopen( path, "wb" ) ) == NULL )
return( MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR );
if( ( ret = mbedtls_hmac_drbg_random( ctx, buf, sizeof( buf ) ) ) != 0 )
goto exit;
if( fwrite( buf, 1, sizeof( buf ), f ) != sizeof( buf ) )
{
ret = MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR;
goto exit;
}
ret = 0;
exit:
fclose( f );
mbedtls_platform_zeroize( buf, sizeof( buf ) );
return( ret );
}
int mbedtls_hmac_drbg_update_seed_file( mbedtls_hmac_drbg_context *ctx, const char *path )
{
int ret = 0;
FILE *f = NULL;
size_t n;
unsigned char buf[ MBEDTLS_HMAC_DRBG_MAX_INPUT ];
unsigned char c;
if( ( f = fopen( path, "rb" ) ) == NULL )
return( MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR );
n = fread( buf, 1, sizeof( buf ), f );
if( fread( &c, 1, 1, f ) != 0 )
{
ret = MBEDTLS_ERR_HMAC_DRBG_INPUT_TOO_BIG;
goto exit;
}
if( n == 0 || ferror( f ) )
{
ret = MBEDTLS_ERR_HMAC_DRBG_FILE_IO_ERROR;
goto exit;
}
fclose( f );
f = NULL;
ret = mbedtls_hmac_drbg_update_ret( ctx, buf, n );
exit:
mbedtls_platform_zeroize( buf, sizeof( buf ) );
if( f != NULL )
fclose( f );
if( ret != 0 )
return( ret );
return( mbedtls_hmac_drbg_write_seed_file( ctx, path ) );
}
#endif /* MBEDTLS_FS_IO */
#if defined(MBEDTLS_SELF_TEST)
#if !defined(MBEDTLS_SHA1_C)
/* Dummy checkup routine */
int mbedtls_hmac_drbg_self_test( int verbose )
{
(void) verbose;
return( 0 );
}
#else
#define OUTPUT_LEN 80
/* From a NIST PR=true test vector */
static const unsigned char entropy_pr[] = {
0xa0, 0xc9, 0xab, 0x58, 0xf1, 0xe2, 0xe5, 0xa4, 0xde, 0x3e, 0xbd, 0x4f,
0xf7, 0x3e, 0x9c, 0x5b, 0x64, 0xef, 0xd8, 0xca, 0x02, 0x8c, 0xf8, 0x11,
0x48, 0xa5, 0x84, 0xfe, 0x69, 0xab, 0x5a, 0xee, 0x42, 0xaa, 0x4d, 0x42,
0x17, 0x60, 0x99, 0xd4, 0x5e, 0x13, 0x97, 0xdc, 0x40, 0x4d, 0x86, 0xa3,
0x7b, 0xf5, 0x59, 0x54, 0x75, 0x69, 0x51, 0xe4 };
static const unsigned char result_pr[OUTPUT_LEN] = {
0x9a, 0x00, 0xa2, 0xd0, 0x0e, 0xd5, 0x9b, 0xfe, 0x31, 0xec, 0xb1, 0x39,
0x9b, 0x60, 0x81, 0x48, 0xd1, 0x96, 0x9d, 0x25, 0x0d, 0x3c, 0x1e, 0x94,
0x10, 0x10, 0x98, 0x12, 0x93, 0x25, 0xca, 0xb8, 0xfc, 0xcc, 0x2d, 0x54,
0x73, 0x19, 0x70, 0xc0, 0x10, 0x7a, 0xa4, 0x89, 0x25, 0x19, 0x95, 0x5e,
0x4b, 0xc6, 0x00, 0x1d, 0x7f, 0x4e, 0x6a, 0x2b, 0xf8, 0xa3, 0x01, 0xab,
0x46, 0x05, 0x5c, 0x09, 0xa6, 0x71, 0x88, 0xf1, 0xa7, 0x40, 0xee, 0xf3,
0xe1, 0x5c, 0x02, 0x9b, 0x44, 0xaf, 0x03, 0x44 };
/* From a NIST PR=false test vector */
static const unsigned char entropy_nopr[] = {
0x79, 0x34, 0x9b, 0xbf, 0x7c, 0xdd, 0xa5, 0x79, 0x95, 0x57, 0x86, 0x66,
0x21, 0xc9, 0x13, 0x83, 0x11, 0x46, 0x73, 0x3a, 0xbf, 0x8c, 0x35, 0xc8,
0xc7, 0x21, 0x5b, 0x5b, 0x96, 0xc4, 0x8e, 0x9b, 0x33, 0x8c, 0x74, 0xe3,
0xe9, 0x9d, 0xfe, 0xdf };
static const unsigned char result_nopr[OUTPUT_LEN] = {
0xc6, 0xa1, 0x6a, 0xb8, 0xd4, 0x20, 0x70, 0x6f, 0x0f, 0x34, 0xab, 0x7f,
0xec, 0x5a, 0xdc, 0xa9, 0xd8, 0xca, 0x3a, 0x13, 0x3e, 0x15, 0x9c, 0xa6,
0xac, 0x43, 0xc6, 0xf8, 0xa2, 0xbe, 0x22, 0x83, 0x4a, 0x4c, 0x0a, 0x0a,
0xff, 0xb1, 0x0d, 0x71, 0x94, 0xf1, 0xc1, 0xa5, 0xcf, 0x73, 0x22, 0xec,
0x1a, 0xe0, 0x96, 0x4e, 0xd4, 0xbf, 0x12, 0x27, 0x46, 0xe0, 0x87, 0xfd,
0xb5, 0xb3, 0xe9, 0x1b, 0x34, 0x93, 0xd5, 0xbb, 0x98, 0xfa, 0xed, 0x49,
0xe8, 0x5f, 0x13, 0x0f, 0xc8, 0xa4, 0x59, 0xb7 };
/* "Entropy" from buffer */
static size_t test_offset;
static int hmac_drbg_self_test_entropy( void *data,
unsigned char *buf, size_t len )
{
const unsigned char *p = data;
memcpy( buf, p + test_offset, len );
test_offset += len;
return( 0 );
}
#define CHK( c ) if( (c) != 0 ) \
{ \
if( verbose != 0 ) \
mbedtls_printf( "failed\n" ); \
return( 1 ); \
}
/*
* Checkup routine for HMAC_DRBG with SHA-1
*/
int mbedtls_hmac_drbg_self_test( int verbose )
{
mbedtls_hmac_drbg_context ctx;
unsigned char buf[OUTPUT_LEN];
const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 );
mbedtls_hmac_drbg_init( &ctx );
/*
* PR = True
*/
if( verbose != 0 )
mbedtls_printf( " HMAC_DRBG (PR = True) : " );
test_offset = 0;
CHK( mbedtls_hmac_drbg_seed( &ctx, md_info,
hmac_drbg_self_test_entropy, (void *) entropy_pr,
NULL, 0 ) );
mbedtls_hmac_drbg_set_prediction_resistance( &ctx, MBEDTLS_HMAC_DRBG_PR_ON );
CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
CHK( memcmp( buf, result_pr, OUTPUT_LEN ) );
mbedtls_hmac_drbg_free( &ctx );
mbedtls_hmac_drbg_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
/*
* PR = False
*/
if( verbose != 0 )
mbedtls_printf( " HMAC_DRBG (PR = False) : " );
mbedtls_hmac_drbg_init( &ctx );
test_offset = 0;
CHK( mbedtls_hmac_drbg_seed( &ctx, md_info,
hmac_drbg_self_test_entropy, (void *) entropy_nopr,
NULL, 0 ) );
CHK( mbedtls_hmac_drbg_reseed( &ctx, NULL, 0 ) );
CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
CHK( mbedtls_hmac_drbg_random( &ctx, buf, OUTPUT_LEN ) );
CHK( memcmp( buf, result_nopr, OUTPUT_LEN ) );
mbedtls_hmac_drbg_free( &ctx );
mbedtls_hmac_drbg_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
}
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_HMAC_DRBG_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/hmac_drbg.c | C | apache-2.0 | 17,867 |
/**
* \file mbedtls_md.c
*
* \brief Generic message digest wrapper for mbed TLS
*
* \author Adriaan de Jong <dejong@fox-it.com>
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_MD_C)
#include "mbedtls/md.h"
#include "mbedtls/md_internal.h"
#include "mbedtls/platform_util.h"
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#include <string.h>
#if defined(MBEDTLS_FS_IO)
#include <stdio.h>
#endif
/*
* Reminder: update profiles in x509_crt.c when adding a new hash!
*/
static const int supported_digests[] = {
#if defined(MBEDTLS_SHA512_C)
MBEDTLS_MD_SHA512,
MBEDTLS_MD_SHA384,
#endif
#if defined(MBEDTLS_SHA256_C)
MBEDTLS_MD_SHA256,
MBEDTLS_MD_SHA224,
#endif
#if defined(MBEDTLS_SHA1_C)
MBEDTLS_MD_SHA1,
#endif
#if defined(MBEDTLS_RIPEMD160_C)
MBEDTLS_MD_RIPEMD160,
#endif
#if defined(MBEDTLS_MD5_C)
MBEDTLS_MD_MD5,
#endif
#if defined(MBEDTLS_MD4_C)
MBEDTLS_MD_MD4,
#endif
#if defined(MBEDTLS_MD2_C)
MBEDTLS_MD_MD2,
#endif
MBEDTLS_MD_NONE
};
const int *mbedtls_md_list( void )
{
return( supported_digests );
}
const mbedtls_md_info_t *mbedtls_md_info_from_string( const char *md_name )
{
if( NULL == md_name )
return( NULL );
/* Get the appropriate digest information */
#if defined(MBEDTLS_MD2_C)
if( !strcmp( "MD2", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_MD2 );
#endif
#if defined(MBEDTLS_MD4_C)
if( !strcmp( "MD4", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_MD4 );
#endif
#if defined(MBEDTLS_MD5_C)
if( !strcmp( "MD5", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_MD5 );
#endif
#if defined(MBEDTLS_RIPEMD160_C)
if( !strcmp( "RIPEMD160", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_RIPEMD160 );
#endif
#if defined(MBEDTLS_SHA1_C)
if( !strcmp( "SHA1", md_name ) || !strcmp( "SHA", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 );
#endif
#if defined(MBEDTLS_SHA256_C)
if( !strcmp( "SHA224", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_SHA224 );
if( !strcmp( "SHA256", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 );
#endif
#if defined(MBEDTLS_SHA512_C)
if( !strcmp( "SHA384", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_SHA384 );
if( !strcmp( "SHA512", md_name ) )
return mbedtls_md_info_from_type( MBEDTLS_MD_SHA512 );
#endif
return( NULL );
}
const mbedtls_md_info_t *mbedtls_md_info_from_type( mbedtls_md_type_t md_type )
{
switch( md_type )
{
#if defined(MBEDTLS_MD2_C)
case MBEDTLS_MD_MD2:
return( &mbedtls_md2_info );
#endif
#if defined(MBEDTLS_MD4_C)
case MBEDTLS_MD_MD4:
return( &mbedtls_md4_info );
#endif
#if defined(MBEDTLS_MD5_C)
case MBEDTLS_MD_MD5:
return( &mbedtls_md5_info );
#endif
#if defined(MBEDTLS_RIPEMD160_C)
case MBEDTLS_MD_RIPEMD160:
return( &mbedtls_ripemd160_info );
#endif
#if defined(MBEDTLS_SHA1_C)
case MBEDTLS_MD_SHA1:
return( &mbedtls_sha1_info );
#endif
#if defined(MBEDTLS_SHA256_C)
case MBEDTLS_MD_SHA224:
return( &mbedtls_sha224_info );
case MBEDTLS_MD_SHA256:
return( &mbedtls_sha256_info );
#endif
#if defined(MBEDTLS_SHA512_C)
case MBEDTLS_MD_SHA384:
return( &mbedtls_sha384_info );
case MBEDTLS_MD_SHA512:
return( &mbedtls_sha512_info );
#endif
default:
return( NULL );
}
}
void mbedtls_md_init( mbedtls_md_context_t *ctx )
{
memset( ctx, 0, sizeof( mbedtls_md_context_t ) );
}
void mbedtls_md_free( mbedtls_md_context_t *ctx )
{
if( ctx == NULL || ctx->md_info == NULL )
return;
if( ctx->md_ctx != NULL )
ctx->md_info->ctx_free_func( ctx->md_ctx );
if( ctx->hmac_ctx != NULL )
{
mbedtls_platform_zeroize( ctx->hmac_ctx,
2 * ctx->md_info->block_size );
mbedtls_free( ctx->hmac_ctx );
}
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md_context_t ) );
}
int mbedtls_md_clone( mbedtls_md_context_t *dst,
const mbedtls_md_context_t *src )
{
if( dst == NULL || dst->md_info == NULL ||
src == NULL || src->md_info == NULL ||
dst->md_info != src->md_info )
{
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
}
dst->md_info->clone_func( dst->md_ctx, src->md_ctx );
return( 0 );
}
#if ! defined(MBEDTLS_DEPRECATED_REMOVED)
int mbedtls_md_init_ctx( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info )
{
return mbedtls_md_setup( ctx, md_info, 1 );
}
#endif
int mbedtls_md_setup( mbedtls_md_context_t *ctx, const mbedtls_md_info_t *md_info, int hmac )
{
if( md_info == NULL || ctx == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
if( ( ctx->md_ctx = md_info->ctx_alloc_func() ) == NULL )
return( MBEDTLS_ERR_MD_ALLOC_FAILED );
if( hmac != 0 )
{
ctx->hmac_ctx = mbedtls_calloc( 2, md_info->block_size );
if( ctx->hmac_ctx == NULL )
{
md_info->ctx_free_func( ctx->md_ctx );
return( MBEDTLS_ERR_MD_ALLOC_FAILED );
}
}
ctx->md_info = md_info;
return( 0 );
}
int mbedtls_md_starts( mbedtls_md_context_t *ctx )
{
if( ctx == NULL || ctx->md_info == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
return( ctx->md_info->starts_func( ctx->md_ctx ) );
}
int mbedtls_md_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen )
{
if( ctx == NULL || ctx->md_info == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
return( ctx->md_info->update_func( ctx->md_ctx, input, ilen ) );
}
int mbedtls_md_finish( mbedtls_md_context_t *ctx, unsigned char *output )
{
if( ctx == NULL || ctx->md_info == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
return( ctx->md_info->finish_func( ctx->md_ctx, output ) );
}
int mbedtls_md( const mbedtls_md_info_t *md_info, const unsigned char *input, size_t ilen,
unsigned char *output )
{
if( md_info == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
return( md_info->digest_func( input, ilen, output ) );
}
#if defined(MBEDTLS_FS_IO)
int mbedtls_md_file( const mbedtls_md_info_t *md_info, const char *path, unsigned char *output )
{
int ret;
FILE *f;
size_t n;
mbedtls_md_context_t ctx;
unsigned char buf[1024];
if( md_info == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
if( ( f = fopen( path, "rb" ) ) == NULL )
return( MBEDTLS_ERR_MD_FILE_IO_ERROR );
mbedtls_md_init( &ctx );
if( ( ret = mbedtls_md_setup( &ctx, md_info, 0 ) ) != 0 )
goto cleanup;
if( ( ret = md_info->starts_func( ctx.md_ctx ) ) != 0 )
goto cleanup;
while( ( n = fread( buf, 1, sizeof( buf ), f ) ) > 0 )
if( ( ret = md_info->update_func( ctx.md_ctx, buf, n ) ) != 0 )
goto cleanup;
if( ferror( f ) != 0 )
ret = MBEDTLS_ERR_MD_FILE_IO_ERROR;
else
ret = md_info->finish_func( ctx.md_ctx, output );
cleanup:
mbedtls_platform_zeroize( buf, sizeof( buf ) );
fclose( f );
mbedtls_md_free( &ctx );
return( ret );
}
#endif /* MBEDTLS_FS_IO */
int mbedtls_md_hmac_starts( mbedtls_md_context_t *ctx, const unsigned char *key, size_t keylen )
{
int ret;
unsigned char sum[MBEDTLS_MD_MAX_SIZE];
unsigned char *ipad, *opad;
size_t i;
if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
if( keylen > (size_t) ctx->md_info->block_size )
{
if( ( ret = ctx->md_info->starts_func( ctx->md_ctx ) ) != 0 )
goto cleanup;
if( ( ret = ctx->md_info->update_func( ctx->md_ctx, key, keylen ) ) != 0 )
goto cleanup;
if( ( ret = ctx->md_info->finish_func( ctx->md_ctx, sum ) ) != 0 )
goto cleanup;
keylen = ctx->md_info->size;
key = sum;
}
ipad = (unsigned char *) ctx->hmac_ctx;
opad = (unsigned char *) ctx->hmac_ctx + ctx->md_info->block_size;
memset( ipad, 0x36, ctx->md_info->block_size );
memset( opad, 0x5C, ctx->md_info->block_size );
for( i = 0; i < keylen; i++ )
{
ipad[i] = (unsigned char)( ipad[i] ^ key[i] );
opad[i] = (unsigned char)( opad[i] ^ key[i] );
}
if( ( ret = ctx->md_info->starts_func( ctx->md_ctx ) ) != 0 )
goto cleanup;
if( ( ret = ctx->md_info->update_func( ctx->md_ctx, ipad,
ctx->md_info->block_size ) ) != 0 )
goto cleanup;
cleanup:
mbedtls_platform_zeroize( sum, sizeof( sum ) );
return( ret );
}
int mbedtls_md_hmac_update( mbedtls_md_context_t *ctx, const unsigned char *input, size_t ilen )
{
if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
return( ctx->md_info->update_func( ctx->md_ctx, input, ilen ) );
}
int mbedtls_md_hmac_finish( mbedtls_md_context_t *ctx, unsigned char *output )
{
int ret;
unsigned char tmp[MBEDTLS_MD_MAX_SIZE];
unsigned char *opad;
if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
opad = (unsigned char *) ctx->hmac_ctx + ctx->md_info->block_size;
if( ( ret = ctx->md_info->finish_func( ctx->md_ctx, tmp ) ) != 0 )
return( ret );
if( ( ret = ctx->md_info->starts_func( ctx->md_ctx ) ) != 0 )
return( ret );
if( ( ret = ctx->md_info->update_func( ctx->md_ctx, opad,
ctx->md_info->block_size ) ) != 0 )
return( ret );
if( ( ret = ctx->md_info->update_func( ctx->md_ctx, tmp,
ctx->md_info->size ) ) != 0 )
return( ret );
return( ctx->md_info->finish_func( ctx->md_ctx, output ) );
}
int mbedtls_md_hmac_reset( mbedtls_md_context_t *ctx )
{
int ret;
unsigned char *ipad;
if( ctx == NULL || ctx->md_info == NULL || ctx->hmac_ctx == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
ipad = (unsigned char *) ctx->hmac_ctx;
if( ( ret = ctx->md_info->starts_func( ctx->md_ctx ) ) != 0 )
return( ret );
return( ctx->md_info->update_func( ctx->md_ctx, ipad,
ctx->md_info->block_size ) );
}
int mbedtls_md_hmac( const mbedtls_md_info_t *md_info,
const unsigned char *key, size_t keylen,
const unsigned char *input, size_t ilen,
unsigned char *output )
{
mbedtls_md_context_t ctx;
int ret;
if( md_info == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
mbedtls_md_init( &ctx );
if( ( ret = mbedtls_md_setup( &ctx, md_info, 1 ) ) != 0 )
goto cleanup;
if( ( ret = mbedtls_md_hmac_starts( &ctx, key, keylen ) ) != 0 )
goto cleanup;
if( ( ret = mbedtls_md_hmac_update( &ctx, input, ilen ) ) != 0 )
goto cleanup;
if( ( ret = mbedtls_md_hmac_finish( &ctx, output ) ) != 0 )
goto cleanup;
cleanup:
mbedtls_md_free( &ctx );
return( ret );
}
int mbedtls_md_process( mbedtls_md_context_t *ctx, const unsigned char *data )
{
if( ctx == NULL || ctx->md_info == NULL )
return( MBEDTLS_ERR_MD_BAD_INPUT_DATA );
return( ctx->md_info->process_func( ctx->md_ctx, data ) );
}
unsigned char mbedtls_md_get_size( const mbedtls_md_info_t *md_info )
{
if( md_info == NULL )
return( 0 );
return md_info->size;
}
mbedtls_md_type_t mbedtls_md_get_type( const mbedtls_md_info_t *md_info )
{
if( md_info == NULL )
return( MBEDTLS_MD_NONE );
return md_info->type;
}
const char *mbedtls_md_get_name( const mbedtls_md_info_t *md_info )
{
if( md_info == NULL )
return( NULL );
return md_info->name;
}
#endif /* MBEDTLS_MD_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/md.c | C | apache-2.0 | 12,973 |
/*
* RFC 1115/1319 compliant MD2 implementation
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The MD2 algorithm was designed by Ron Rivest in 1989.
*
* http://www.ietf.org/rfc/rfc1115.txt
* http://www.ietf.org/rfc/rfc1319.txt
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_MD2_C)
#include "mbedtls/md2.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if !defined(MBEDTLS_MD2_ALT)
static const unsigned char PI_SUBST[256] =
{
0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, 0x3D, 0x36,
0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13, 0x62, 0xA7, 0x05, 0xF3,
0xC0, 0xC7, 0x73, 0x8C, 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C,
0x82, 0xCA, 0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16,
0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12, 0xBE, 0x4E,
0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49, 0xA0, 0xFB, 0xF5, 0x8E,
0xBB, 0x2F, 0xEE, 0x7A, 0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2,
0x07, 0x3F, 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21,
0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27, 0x35, 0x3E,
0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03, 0xFF, 0x19, 0x30, 0xB3,
0x48, 0xA5, 0xB5, 0xD1, 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56,
0xAA, 0xC6, 0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6,
0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1, 0x45, 0x9D,
0x70, 0x59, 0x64, 0x71, 0x87, 0x20, 0x86, 0x5B, 0xCF, 0x65,
0xE6, 0x2D, 0xA8, 0x02, 0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0,
0xB9, 0xF6, 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F,
0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A, 0xC3, 0x5C,
0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26, 0x2C, 0x53, 0x0D, 0x6E,
0x85, 0x28, 0x84, 0x09, 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81,
0x4D, 0x52, 0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA,
0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A, 0x78, 0x88,
0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D, 0xE9, 0xCB, 0xD5, 0xFE,
0x3B, 0x00, 0x1D, 0x39, 0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58,
0xD0, 0xE4, 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A,
0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, 0xDB, 0x99,
0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14
};
void mbedtls_md2_init( mbedtls_md2_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_md2_context ) );
}
void mbedtls_md2_free( mbedtls_md2_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md2_context ) );
}
void mbedtls_md2_clone( mbedtls_md2_context *dst,
const mbedtls_md2_context *src )
{
*dst = *src;
}
/*
* MD2 context setup
*/
int mbedtls_md2_starts_ret( mbedtls_md2_context *ctx )
{
memset( ctx->cksum, 0, 16 );
memset( ctx->state, 0, 46 );
memset( ctx->buffer, 0, 16 );
ctx->left = 0;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md2_starts( mbedtls_md2_context *ctx )
{
mbedtls_md2_starts_ret( ctx );
}
#endif
#if !defined(MBEDTLS_MD2_PROCESS_ALT)
int mbedtls_internal_md2_process( mbedtls_md2_context *ctx )
{
int i, j;
unsigned char t = 0;
for( i = 0; i < 16; i++ )
{
ctx->state[i + 16] = ctx->buffer[i];
ctx->state[i + 32] =
(unsigned char)( ctx->buffer[i] ^ ctx->state[i]);
}
for( i = 0; i < 18; i++ )
{
for( j = 0; j < 48; j++ )
{
ctx->state[j] = (unsigned char)
( ctx->state[j] ^ PI_SUBST[t] );
t = ctx->state[j];
}
t = (unsigned char)( t + i );
}
t = ctx->cksum[15];
for( i = 0; i < 16; i++ )
{
ctx->cksum[i] = (unsigned char)
( ctx->cksum[i] ^ PI_SUBST[ctx->buffer[i] ^ t] );
t = ctx->cksum[i];
}
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md2_process( mbedtls_md2_context *ctx )
{
mbedtls_internal_md2_process( ctx );
}
#endif
#endif /* !MBEDTLS_MD2_PROCESS_ALT */
/*
* MD2 process buffer
*/
int mbedtls_md2_update_ret( mbedtls_md2_context *ctx,
const unsigned char *input,
size_t ilen )
{
int ret;
size_t fill;
while( ilen > 0 )
{
if( ilen > 16 - ctx->left )
fill = 16 - ctx->left;
else
fill = ilen;
memcpy( ctx->buffer + ctx->left, input, fill );
ctx->left += fill;
input += fill;
ilen -= fill;
if( ctx->left == 16 )
{
ctx->left = 0;
if( ( ret = mbedtls_internal_md2_process( ctx ) ) != 0 )
return( ret );
}
}
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md2_update( mbedtls_md2_context *ctx,
const unsigned char *input,
size_t ilen )
{
mbedtls_md2_update_ret( ctx, input, ilen );
}
#endif
/*
* MD2 final digest
*/
int mbedtls_md2_finish_ret( mbedtls_md2_context *ctx,
unsigned char output[16] )
{
int ret;
size_t i;
unsigned char x;
x = (unsigned char)( 16 - ctx->left );
for( i = ctx->left; i < 16; i++ )
ctx->buffer[i] = x;
if( ( ret = mbedtls_internal_md2_process( ctx ) ) != 0 )
return( ret );
memcpy( ctx->buffer, ctx->cksum, 16 );
if( ( ret = mbedtls_internal_md2_process( ctx ) ) != 0 )
return( ret );
memcpy( output, ctx->state, 16 );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md2_finish( mbedtls_md2_context *ctx,
unsigned char output[16] )
{
mbedtls_md2_finish_ret( ctx, output );
}
#endif
#endif /* !MBEDTLS_MD2_ALT */
/*
* output = MD2( input buffer )
*/
int mbedtls_md2_ret( const unsigned char *input,
size_t ilen,
unsigned char output[16] )
{
int ret;
mbedtls_md2_context ctx;
mbedtls_md2_init( &ctx );
if( ( ret = mbedtls_md2_starts_ret( &ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md2_update_ret( &ctx, input, ilen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md2_finish_ret( &ctx, output ) ) != 0 )
goto exit;
exit:
mbedtls_md2_free( &ctx );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md2( const unsigned char *input,
size_t ilen,
unsigned char output[16] )
{
mbedtls_md2_ret( input, ilen, output );
}
#endif
#if defined(MBEDTLS_SELF_TEST)
/*
* RFC 1319 test vectors
*/
static const unsigned char md2_test_str[7][81] =
{
{ "" },
{ "a" },
{ "abc" },
{ "message digest" },
{ "abcdefghijklmnopqrstuvwxyz" },
{ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
{ "12345678901234567890123456789012345678901234567890123456789012"
"345678901234567890" }
};
static const size_t md2_test_strlen[7] =
{
0, 1, 3, 14, 26, 62, 80
};
static const unsigned char md2_test_sum[7][16] =
{
{ 0x83, 0x50, 0xE5, 0xA3, 0xE2, 0x4C, 0x15, 0x3D,
0xF2, 0x27, 0x5C, 0x9F, 0x80, 0x69, 0x27, 0x73 },
{ 0x32, 0xEC, 0x01, 0xEC, 0x4A, 0x6D, 0xAC, 0x72,
0xC0, 0xAB, 0x96, 0xFB, 0x34, 0xC0, 0xB5, 0xD1 },
{ 0xDA, 0x85, 0x3B, 0x0D, 0x3F, 0x88, 0xD9, 0x9B,
0x30, 0x28, 0x3A, 0x69, 0xE6, 0xDE, 0xD6, 0xBB },
{ 0xAB, 0x4F, 0x49, 0x6B, 0xFB, 0x2A, 0x53, 0x0B,
0x21, 0x9F, 0xF3, 0x30, 0x31, 0xFE, 0x06, 0xB0 },
{ 0x4E, 0x8D, 0xDF, 0xF3, 0x65, 0x02, 0x92, 0xAB,
0x5A, 0x41, 0x08, 0xC3, 0xAA, 0x47, 0x94, 0x0B },
{ 0xDA, 0x33, 0xDE, 0xF2, 0xA4, 0x2D, 0xF1, 0x39,
0x75, 0x35, 0x28, 0x46, 0xC3, 0x03, 0x38, 0xCD },
{ 0xD5, 0x97, 0x6F, 0x79, 0xD8, 0x3D, 0x3A, 0x0D,
0xC9, 0x80, 0x6C, 0x3C, 0x66, 0xF3, 0xEF, 0xD8 }
};
/*
* Checkup routine
*/
int mbedtls_md2_self_test( int verbose )
{
int i, ret = 0;
unsigned char md2sum[16];
for( i = 0; i < 7; i++ )
{
if( verbose != 0 )
mbedtls_printf( " MD2 test #%d: ", i + 1 );
ret = mbedtls_md2_ret( md2_test_str[i], md2_test_strlen[i], md2sum );
if( ret != 0 )
goto fail;
if( memcmp( md2sum, md2_test_sum[i], 16 ) != 0 )
{
ret = 1;
goto fail;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
fail:
if( verbose != 0 )
mbedtls_printf( "failed\n" );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_MD2_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/md2.c | C | apache-2.0 | 9,409 |
/*
* RFC 1186/1320 compliant MD4 implementation
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The MD4 algorithm was designed by Ron Rivest in 1990.
*
* http://www.ietf.org/rfc/rfc1186.txt
* http://www.ietf.org/rfc/rfc1320.txt
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_MD4_C)
#include "mbedtls/md4.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if !defined(MBEDTLS_MD4_ALT)
/*
* 32-bit integer manipulation macros (little endian)
*/
#ifndef GET_UINT32_LE
#define GET_UINT32_LE(n,b,i) \
{ \
(n) = ( (uint32_t) (b)[(i) ] ) \
| ( (uint32_t) (b)[(i) + 1] << 8 ) \
| ( (uint32_t) (b)[(i) + 2] << 16 ) \
| ( (uint32_t) (b)[(i) + 3] << 24 ); \
}
#endif
#ifndef PUT_UINT32_LE
#define PUT_UINT32_LE(n,b,i) \
{ \
(b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \
(b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \
(b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \
(b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \
}
#endif
void mbedtls_md4_init( mbedtls_md4_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_md4_context ) );
}
void mbedtls_md4_free( mbedtls_md4_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md4_context ) );
}
void mbedtls_md4_clone( mbedtls_md4_context *dst,
const mbedtls_md4_context *src )
{
*dst = *src;
}
/*
* MD4 context setup
*/
int mbedtls_md4_starts_ret( mbedtls_md4_context *ctx )
{
ctx->total[0] = 0;
ctx->total[1] = 0;
ctx->state[0] = 0x67452301;
ctx->state[1] = 0xEFCDAB89;
ctx->state[2] = 0x98BADCFE;
ctx->state[3] = 0x10325476;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md4_starts( mbedtls_md4_context *ctx )
{
mbedtls_md4_starts_ret( ctx );
}
#endif
#if !defined(MBEDTLS_MD4_PROCESS_ALT)
int mbedtls_internal_md4_process( mbedtls_md4_context *ctx,
const unsigned char data[64] )
{
uint32_t X[16], A, B, C, D;
GET_UINT32_LE( X[ 0], data, 0 );
GET_UINT32_LE( X[ 1], data, 4 );
GET_UINT32_LE( X[ 2], data, 8 );
GET_UINT32_LE( X[ 3], data, 12 );
GET_UINT32_LE( X[ 4], data, 16 );
GET_UINT32_LE( X[ 5], data, 20 );
GET_UINT32_LE( X[ 6], data, 24 );
GET_UINT32_LE( X[ 7], data, 28 );
GET_UINT32_LE( X[ 8], data, 32 );
GET_UINT32_LE( X[ 9], data, 36 );
GET_UINT32_LE( X[10], data, 40 );
GET_UINT32_LE( X[11], data, 44 );
GET_UINT32_LE( X[12], data, 48 );
GET_UINT32_LE( X[13], data, 52 );
GET_UINT32_LE( X[14], data, 56 );
GET_UINT32_LE( X[15], data, 60 );
#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
A = ctx->state[0];
B = ctx->state[1];
C = ctx->state[2];
D = ctx->state[3];
#define F(x, y, z) ((x & y) | ((~x) & z))
#define P(a,b,c,d,x,s) { a += F(b,c,d) + x; a = S(a,s); }
P( A, B, C, D, X[ 0], 3 );
P( D, A, B, C, X[ 1], 7 );
P( C, D, A, B, X[ 2], 11 );
P( B, C, D, A, X[ 3], 19 );
P( A, B, C, D, X[ 4], 3 );
P( D, A, B, C, X[ 5], 7 );
P( C, D, A, B, X[ 6], 11 );
P( B, C, D, A, X[ 7], 19 );
P( A, B, C, D, X[ 8], 3 );
P( D, A, B, C, X[ 9], 7 );
P( C, D, A, B, X[10], 11 );
P( B, C, D, A, X[11], 19 );
P( A, B, C, D, X[12], 3 );
P( D, A, B, C, X[13], 7 );
P( C, D, A, B, X[14], 11 );
P( B, C, D, A, X[15], 19 );
#undef P
#undef F
#define F(x,y,z) ((x & y) | (x & z) | (y & z))
#define P(a,b,c,d,x,s) { a += F(b,c,d) + x + 0x5A827999; a = S(a,s); }
P( A, B, C, D, X[ 0], 3 );
P( D, A, B, C, X[ 4], 5 );
P( C, D, A, B, X[ 8], 9 );
P( B, C, D, A, X[12], 13 );
P( A, B, C, D, X[ 1], 3 );
P( D, A, B, C, X[ 5], 5 );
P( C, D, A, B, X[ 9], 9 );
P( B, C, D, A, X[13], 13 );
P( A, B, C, D, X[ 2], 3 );
P( D, A, B, C, X[ 6], 5 );
P( C, D, A, B, X[10], 9 );
P( B, C, D, A, X[14], 13 );
P( A, B, C, D, X[ 3], 3 );
P( D, A, B, C, X[ 7], 5 );
P( C, D, A, B, X[11], 9 );
P( B, C, D, A, X[15], 13 );
#undef P
#undef F
#define F(x,y,z) (x ^ y ^ z)
#define P(a,b,c,d,x,s) { a += F(b,c,d) + x + 0x6ED9EBA1; a = S(a,s); }
P( A, B, C, D, X[ 0], 3 );
P( D, A, B, C, X[ 8], 9 );
P( C, D, A, B, X[ 4], 11 );
P( B, C, D, A, X[12], 15 );
P( A, B, C, D, X[ 2], 3 );
P( D, A, B, C, X[10], 9 );
P( C, D, A, B, X[ 6], 11 );
P( B, C, D, A, X[14], 15 );
P( A, B, C, D, X[ 1], 3 );
P( D, A, B, C, X[ 9], 9 );
P( C, D, A, B, X[ 5], 11 );
P( B, C, D, A, X[13], 15 );
P( A, B, C, D, X[ 3], 3 );
P( D, A, B, C, X[11], 9 );
P( C, D, A, B, X[ 7], 11 );
P( B, C, D, A, X[15], 15 );
#undef F
#undef P
ctx->state[0] += A;
ctx->state[1] += B;
ctx->state[2] += C;
ctx->state[3] += D;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md4_process( mbedtls_md4_context *ctx,
const unsigned char data[64] )
{
mbedtls_internal_md4_process( ctx, data );
}
#endif
#endif /* !MBEDTLS_MD4_PROCESS_ALT */
/*
* MD4 process buffer
*/
int mbedtls_md4_update_ret( mbedtls_md4_context *ctx,
const unsigned char *input,
size_t ilen )
{
int ret;
size_t fill;
uint32_t left;
if( ilen == 0 )
return( 0 );
left = ctx->total[0] & 0x3F;
fill = 64 - left;
ctx->total[0] += (uint32_t) ilen;
ctx->total[0] &= 0xFFFFFFFF;
if( ctx->total[0] < (uint32_t) ilen )
ctx->total[1]++;
if( left && ilen >= fill )
{
memcpy( (void *) (ctx->buffer + left),
(void *) input, fill );
if( ( ret = mbedtls_internal_md4_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
input += fill;
ilen -= fill;
left = 0;
}
while( ilen >= 64 )
{
if( ( ret = mbedtls_internal_md4_process( ctx, input ) ) != 0 )
return( ret );
input += 64;
ilen -= 64;
}
if( ilen > 0 )
{
memcpy( (void *) (ctx->buffer + left),
(void *) input, ilen );
}
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md4_update( mbedtls_md4_context *ctx,
const unsigned char *input,
size_t ilen )
{
mbedtls_md4_update_ret( ctx, input, ilen );
}
#endif
static const unsigned char md4_padding[64] =
{
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
/*
* MD4 final digest
*/
int mbedtls_md4_finish_ret( mbedtls_md4_context *ctx,
unsigned char output[16] )
{
int ret;
uint32_t last, padn;
uint32_t high, low;
unsigned char msglen[8];
high = ( ctx->total[0] >> 29 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );
PUT_UINT32_LE( low, msglen, 0 );
PUT_UINT32_LE( high, msglen, 4 );
last = ctx->total[0] & 0x3F;
padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
ret = mbedtls_md4_update_ret( ctx, (unsigned char *)md4_padding, padn );
if( ret != 0 )
return( ret );
if( ( ret = mbedtls_md4_update_ret( ctx, msglen, 8 ) ) != 0 )
return( ret );
PUT_UINT32_LE( ctx->state[0], output, 0 );
PUT_UINT32_LE( ctx->state[1], output, 4 );
PUT_UINT32_LE( ctx->state[2], output, 8 );
PUT_UINT32_LE( ctx->state[3], output, 12 );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md4_finish( mbedtls_md4_context *ctx,
unsigned char output[16] )
{
mbedtls_md4_finish_ret( ctx, output );
}
#endif
#endif /* !MBEDTLS_MD4_ALT */
/*
* output = MD4( input buffer )
*/
int mbedtls_md4_ret( const unsigned char *input,
size_t ilen,
unsigned char output[16] )
{
int ret;
mbedtls_md4_context ctx;
mbedtls_md4_init( &ctx );
if( ( ret = mbedtls_md4_starts_ret( &ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md4_update_ret( &ctx, input, ilen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md4_finish_ret( &ctx, output ) ) != 0 )
goto exit;
exit:
mbedtls_md4_free( &ctx );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md4( const unsigned char *input,
size_t ilen,
unsigned char output[16] )
{
mbedtls_md4_ret( input, ilen, output );
}
#endif
#if defined(MBEDTLS_SELF_TEST)
/*
* RFC 1320 test vectors
*/
static const unsigned char md4_test_str[7][81] =
{
{ "" },
{ "a" },
{ "abc" },
{ "message digest" },
{ "abcdefghijklmnopqrstuvwxyz" },
{ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
{ "12345678901234567890123456789012345678901234567890123456789012"
"345678901234567890" }
};
static const size_t md4_test_strlen[7] =
{
0, 1, 3, 14, 26, 62, 80
};
static const unsigned char md4_test_sum[7][16] =
{
{ 0x31, 0xD6, 0xCF, 0xE0, 0xD1, 0x6A, 0xE9, 0x31,
0xB7, 0x3C, 0x59, 0xD7, 0xE0, 0xC0, 0x89, 0xC0 },
{ 0xBD, 0xE5, 0x2C, 0xB3, 0x1D, 0xE3, 0x3E, 0x46,
0x24, 0x5E, 0x05, 0xFB, 0xDB, 0xD6, 0xFB, 0x24 },
{ 0xA4, 0x48, 0x01, 0x7A, 0xAF, 0x21, 0xD8, 0x52,
0x5F, 0xC1, 0x0A, 0xE8, 0x7A, 0xA6, 0x72, 0x9D },
{ 0xD9, 0x13, 0x0A, 0x81, 0x64, 0x54, 0x9F, 0xE8,
0x18, 0x87, 0x48, 0x06, 0xE1, 0xC7, 0x01, 0x4B },
{ 0xD7, 0x9E, 0x1C, 0x30, 0x8A, 0xA5, 0xBB, 0xCD,
0xEE, 0xA8, 0xED, 0x63, 0xDF, 0x41, 0x2D, 0xA9 },
{ 0x04, 0x3F, 0x85, 0x82, 0xF2, 0x41, 0xDB, 0x35,
0x1C, 0xE6, 0x27, 0xE1, 0x53, 0xE7, 0xF0, 0xE4 },
{ 0xE3, 0x3B, 0x4D, 0xDC, 0x9C, 0x38, 0xF2, 0x19,
0x9C, 0x3E, 0x7B, 0x16, 0x4F, 0xCC, 0x05, 0x36 }
};
/*
* Checkup routine
*/
int mbedtls_md4_self_test( int verbose )
{
int i, ret = 0;
unsigned char md4sum[16];
for( i = 0; i < 7; i++ )
{
if( verbose != 0 )
mbedtls_printf( " MD4 test #%d: ", i + 1 );
ret = mbedtls_md4_ret( md4_test_str[i], md4_test_strlen[i], md4sum );
if( ret != 0 )
goto fail;
if( memcmp( md4sum, md4_test_sum[i], 16 ) != 0 )
{
ret = 1;
goto fail;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
fail:
if( verbose != 0 )
mbedtls_printf( "failed\n" );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_MD4_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/md4.c | C | apache-2.0 | 11,929 |
/*
* RFC 1321 compliant MD5 implementation
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The MD5 algorithm was designed by Ron Rivest in 1991.
*
* http://www.ietf.org/rfc/rfc1321.txt
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_MD5_C)
#include "mbedtls/md5.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if !defined(MBEDTLS_MD5_ALT)
/*
* 32-bit integer manipulation macros (little endian)
*/
#ifndef GET_UINT32_LE
#define GET_UINT32_LE(n,b,i) \
{ \
(n) = ( (uint32_t) (b)[(i) ] ) \
| ( (uint32_t) (b)[(i) + 1] << 8 ) \
| ( (uint32_t) (b)[(i) + 2] << 16 ) \
| ( (uint32_t) (b)[(i) + 3] << 24 ); \
}
#endif
#ifndef PUT_UINT32_LE
#define PUT_UINT32_LE(n,b,i) \
{ \
(b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \
(b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \
(b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \
(b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \
}
#endif
void mbedtls_md5_init( mbedtls_md5_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_md5_context ) );
}
void mbedtls_md5_free( mbedtls_md5_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_md5_context ) );
}
void mbedtls_md5_clone( mbedtls_md5_context *dst,
const mbedtls_md5_context *src )
{
*dst = *src;
}
/*
* MD5 context setup
*/
int mbedtls_md5_starts_ret( mbedtls_md5_context *ctx )
{
ctx->total[0] = 0;
ctx->total[1] = 0;
ctx->state[0] = 0x67452301;
ctx->state[1] = 0xEFCDAB89;
ctx->state[2] = 0x98BADCFE;
ctx->state[3] = 0x10325476;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md5_starts( mbedtls_md5_context *ctx )
{
mbedtls_md5_starts_ret( ctx );
}
#endif
#if !defined(MBEDTLS_MD5_PROCESS_ALT)
int mbedtls_internal_md5_process( mbedtls_md5_context *ctx,
const unsigned char data[64] )
{
uint32_t X[16], A, B, C, D;
GET_UINT32_LE( X[ 0], data, 0 );
GET_UINT32_LE( X[ 1], data, 4 );
GET_UINT32_LE( X[ 2], data, 8 );
GET_UINT32_LE( X[ 3], data, 12 );
GET_UINT32_LE( X[ 4], data, 16 );
GET_UINT32_LE( X[ 5], data, 20 );
GET_UINT32_LE( X[ 6], data, 24 );
GET_UINT32_LE( X[ 7], data, 28 );
GET_UINT32_LE( X[ 8], data, 32 );
GET_UINT32_LE( X[ 9], data, 36 );
GET_UINT32_LE( X[10], data, 40 );
GET_UINT32_LE( X[11], data, 44 );
GET_UINT32_LE( X[12], data, 48 );
GET_UINT32_LE( X[13], data, 52 );
GET_UINT32_LE( X[14], data, 56 );
GET_UINT32_LE( X[15], data, 60 );
#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
#define P(a,b,c,d,k,s,t) \
{ \
a += F(b,c,d) + X[k] + t; a = S(a,s) + b; \
}
A = ctx->state[0];
B = ctx->state[1];
C = ctx->state[2];
D = ctx->state[3];
#define F(x,y,z) (z ^ (x & (y ^ z)))
P( A, B, C, D, 0, 7, 0xD76AA478 );
P( D, A, B, C, 1, 12, 0xE8C7B756 );
P( C, D, A, B, 2, 17, 0x242070DB );
P( B, C, D, A, 3, 22, 0xC1BDCEEE );
P( A, B, C, D, 4, 7, 0xF57C0FAF );
P( D, A, B, C, 5, 12, 0x4787C62A );
P( C, D, A, B, 6, 17, 0xA8304613 );
P( B, C, D, A, 7, 22, 0xFD469501 );
P( A, B, C, D, 8, 7, 0x698098D8 );
P( D, A, B, C, 9, 12, 0x8B44F7AF );
P( C, D, A, B, 10, 17, 0xFFFF5BB1 );
P( B, C, D, A, 11, 22, 0x895CD7BE );
P( A, B, C, D, 12, 7, 0x6B901122 );
P( D, A, B, C, 13, 12, 0xFD987193 );
P( C, D, A, B, 14, 17, 0xA679438E );
P( B, C, D, A, 15, 22, 0x49B40821 );
#undef F
#define F(x,y,z) (y ^ (z & (x ^ y)))
P( A, B, C, D, 1, 5, 0xF61E2562 );
P( D, A, B, C, 6, 9, 0xC040B340 );
P( C, D, A, B, 11, 14, 0x265E5A51 );
P( B, C, D, A, 0, 20, 0xE9B6C7AA );
P( A, B, C, D, 5, 5, 0xD62F105D );
P( D, A, B, C, 10, 9, 0x02441453 );
P( C, D, A, B, 15, 14, 0xD8A1E681 );
P( B, C, D, A, 4, 20, 0xE7D3FBC8 );
P( A, B, C, D, 9, 5, 0x21E1CDE6 );
P( D, A, B, C, 14, 9, 0xC33707D6 );
P( C, D, A, B, 3, 14, 0xF4D50D87 );
P( B, C, D, A, 8, 20, 0x455A14ED );
P( A, B, C, D, 13, 5, 0xA9E3E905 );
P( D, A, B, C, 2, 9, 0xFCEFA3F8 );
P( C, D, A, B, 7, 14, 0x676F02D9 );
P( B, C, D, A, 12, 20, 0x8D2A4C8A );
#undef F
#define F(x,y,z) (x ^ y ^ z)
P( A, B, C, D, 5, 4, 0xFFFA3942 );
P( D, A, B, C, 8, 11, 0x8771F681 );
P( C, D, A, B, 11, 16, 0x6D9D6122 );
P( B, C, D, A, 14, 23, 0xFDE5380C );
P( A, B, C, D, 1, 4, 0xA4BEEA44 );
P( D, A, B, C, 4, 11, 0x4BDECFA9 );
P( C, D, A, B, 7, 16, 0xF6BB4B60 );
P( B, C, D, A, 10, 23, 0xBEBFBC70 );
P( A, B, C, D, 13, 4, 0x289B7EC6 );
P( D, A, B, C, 0, 11, 0xEAA127FA );
P( C, D, A, B, 3, 16, 0xD4EF3085 );
P( B, C, D, A, 6, 23, 0x04881D05 );
P( A, B, C, D, 9, 4, 0xD9D4D039 );
P( D, A, B, C, 12, 11, 0xE6DB99E5 );
P( C, D, A, B, 15, 16, 0x1FA27CF8 );
P( B, C, D, A, 2, 23, 0xC4AC5665 );
#undef F
#define F(x,y,z) (y ^ (x | ~z))
P( A, B, C, D, 0, 6, 0xF4292244 );
P( D, A, B, C, 7, 10, 0x432AFF97 );
P( C, D, A, B, 14, 15, 0xAB9423A7 );
P( B, C, D, A, 5, 21, 0xFC93A039 );
P( A, B, C, D, 12, 6, 0x655B59C3 );
P( D, A, B, C, 3, 10, 0x8F0CCC92 );
P( C, D, A, B, 10, 15, 0xFFEFF47D );
P( B, C, D, A, 1, 21, 0x85845DD1 );
P( A, B, C, D, 8, 6, 0x6FA87E4F );
P( D, A, B, C, 15, 10, 0xFE2CE6E0 );
P( C, D, A, B, 6, 15, 0xA3014314 );
P( B, C, D, A, 13, 21, 0x4E0811A1 );
P( A, B, C, D, 4, 6, 0xF7537E82 );
P( D, A, B, C, 11, 10, 0xBD3AF235 );
P( C, D, A, B, 2, 15, 0x2AD7D2BB );
P( B, C, D, A, 9, 21, 0xEB86D391 );
#undef F
ctx->state[0] += A;
ctx->state[1] += B;
ctx->state[2] += C;
ctx->state[3] += D;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md5_process( mbedtls_md5_context *ctx,
const unsigned char data[64] )
{
mbedtls_internal_md5_process( ctx, data );
}
#endif
#endif /* !MBEDTLS_MD5_PROCESS_ALT */
/*
* MD5 process buffer
*/
int mbedtls_md5_update_ret( mbedtls_md5_context *ctx,
const unsigned char *input,
size_t ilen )
{
int ret;
size_t fill;
uint32_t left;
if( ilen == 0 )
return( 0 );
left = ctx->total[0] & 0x3F;
fill = 64 - left;
ctx->total[0] += (uint32_t) ilen;
ctx->total[0] &= 0xFFFFFFFF;
if( ctx->total[0] < (uint32_t) ilen )
ctx->total[1]++;
if( left && ilen >= fill )
{
memcpy( (void *) (ctx->buffer + left), input, fill );
if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
input += fill;
ilen -= fill;
left = 0;
}
while( ilen >= 64 )
{
if( ( ret = mbedtls_internal_md5_process( ctx, input ) ) != 0 )
return( ret );
input += 64;
ilen -= 64;
}
if( ilen > 0 )
{
memcpy( (void *) (ctx->buffer + left), input, ilen );
}
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md5_update( mbedtls_md5_context *ctx,
const unsigned char *input,
size_t ilen )
{
mbedtls_md5_update_ret( ctx, input, ilen );
}
#endif
/*
* MD5 final digest
*/
int mbedtls_md5_finish_ret( mbedtls_md5_context *ctx,
unsigned char output[16] )
{
int ret;
uint32_t used;
uint32_t high, low;
/*
* Add padding: 0x80 then 0x00 until 8 bytes remain for the length
*/
used = ctx->total[0] & 0x3F;
ctx->buffer[used++] = 0x80;
if( used <= 56 )
{
/* Enough room for padding + length in current block */
memset( ctx->buffer + used, 0, 56 - used );
}
else
{
/* We'll need an extra block */
memset( ctx->buffer + used, 0, 64 - used );
if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
memset( ctx->buffer, 0, 56 );
}
/*
* Add message length
*/
high = ( ctx->total[0] >> 29 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );
PUT_UINT32_LE( low, ctx->buffer, 56 );
PUT_UINT32_LE( high, ctx->buffer, 60 );
if( ( ret = mbedtls_internal_md5_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
/*
* Output final state
*/
PUT_UINT32_LE( ctx->state[0], output, 0 );
PUT_UINT32_LE( ctx->state[1], output, 4 );
PUT_UINT32_LE( ctx->state[2], output, 8 );
PUT_UINT32_LE( ctx->state[3], output, 12 );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md5_finish( mbedtls_md5_context *ctx,
unsigned char output[16] )
{
mbedtls_md5_finish_ret( ctx, output );
}
#endif
#endif /* !MBEDTLS_MD5_ALT */
/*
* output = MD5( input buffer )
*/
int mbedtls_md5_ret( const unsigned char *input,
size_t ilen,
unsigned char output[16] )
{
int ret;
mbedtls_md5_context ctx;
mbedtls_md5_init( &ctx );
if( ( ret = mbedtls_md5_starts_ret( &ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_update_ret( &ctx, input, ilen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_finish_ret( &ctx, output ) ) != 0 )
goto exit;
exit:
mbedtls_md5_free( &ctx );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_md5( const unsigned char *input,
size_t ilen,
unsigned char output[16] )
{
mbedtls_md5_ret( input, ilen, output );
}
#endif
#if defined(MBEDTLS_SELF_TEST)
/*
* RFC 1321 test vectors
*/
static const unsigned char md5_test_buf[7][81] =
{
{ "" },
{ "a" },
{ "abc" },
{ "message digest" },
{ "abcdefghijklmnopqrstuvwxyz" },
{ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
{ "12345678901234567890123456789012345678901234567890123456789012"
"345678901234567890" }
};
static const size_t md5_test_buflen[7] =
{
0, 1, 3, 14, 26, 62, 80
};
static const unsigned char md5_test_sum[7][16] =
{
{ 0xD4, 0x1D, 0x8C, 0xD9, 0x8F, 0x00, 0xB2, 0x04,
0xE9, 0x80, 0x09, 0x98, 0xEC, 0xF8, 0x42, 0x7E },
{ 0x0C, 0xC1, 0x75, 0xB9, 0xC0, 0xF1, 0xB6, 0xA8,
0x31, 0xC3, 0x99, 0xE2, 0x69, 0x77, 0x26, 0x61 },
{ 0x90, 0x01, 0x50, 0x98, 0x3C, 0xD2, 0x4F, 0xB0,
0xD6, 0x96, 0x3F, 0x7D, 0x28, 0xE1, 0x7F, 0x72 },
{ 0xF9, 0x6B, 0x69, 0x7D, 0x7C, 0xB7, 0x93, 0x8D,
0x52, 0x5A, 0x2F, 0x31, 0xAA, 0xF1, 0x61, 0xD0 },
{ 0xC3, 0xFC, 0xD3, 0xD7, 0x61, 0x92, 0xE4, 0x00,
0x7D, 0xFB, 0x49, 0x6C, 0xCA, 0x67, 0xE1, 0x3B },
{ 0xD1, 0x74, 0xAB, 0x98, 0xD2, 0x77, 0xD9, 0xF5,
0xA5, 0x61, 0x1C, 0x2C, 0x9F, 0x41, 0x9D, 0x9F },
{ 0x57, 0xED, 0xF4, 0xA2, 0x2B, 0xE3, 0xC9, 0x55,
0xAC, 0x49, 0xDA, 0x2E, 0x21, 0x07, 0xB6, 0x7A }
};
/*
* Checkup routine
*/
int mbedtls_md5_self_test( int verbose )
{
int i, ret = 0;
unsigned char md5sum[16];
for( i = 0; i < 7; i++ )
{
if( verbose != 0 )
mbedtls_printf( " MD5 test #%d: ", i + 1 );
ret = mbedtls_md5_ret( md5_test_buf[i], md5_test_buflen[i], md5sum );
if( ret != 0 )
goto fail;
if( memcmp( md5sum, md5_test_sum[i], 16 ) != 0 )
{
ret = 1;
goto fail;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
fail:
if( verbose != 0 )
mbedtls_printf( "failed\n" );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_MD5_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/md5.c | C | apache-2.0 | 13,055 |
/**
* \file md_wrap.c
*
* \brief Generic message digest wrapper for mbed TLS
*
* \author Adriaan de Jong <dejong@fox-it.com>
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_MD_C)
#include "mbedtls/md_internal.h"
#if defined(MBEDTLS_MD2_C)
#include "mbedtls/md2.h"
#endif
#if defined(MBEDTLS_MD4_C)
#include "mbedtls/md4.h"
#endif
#if defined(MBEDTLS_MD5_C)
#include "mbedtls/md5.h"
#endif
#if defined(MBEDTLS_RIPEMD160_C)
#include "mbedtls/ripemd160.h"
#endif
#if defined(MBEDTLS_SHA1_C)
#include "mbedtls/sha1.h"
#endif
#if defined(MBEDTLS_SHA256_C)
#include "mbedtls/sha256.h"
#endif
#if defined(MBEDTLS_SHA512_C)
#include "mbedtls/sha512.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#if defined(MBEDTLS_MD2_C)
static int md2_starts_wrap( void *ctx )
{
return( mbedtls_md2_starts_ret( (mbedtls_md2_context *) ctx ) );
}
static int md2_update_wrap( void *ctx, const unsigned char *input,
size_t ilen )
{
return( mbedtls_md2_update_ret( (mbedtls_md2_context *) ctx, input, ilen ) );
}
static int md2_finish_wrap( void *ctx, unsigned char *output )
{
return( mbedtls_md2_finish_ret( (mbedtls_md2_context *) ctx, output ) );
}
static void *md2_ctx_alloc( void )
{
void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_md2_context ) );
if( ctx != NULL )
mbedtls_md2_init( (mbedtls_md2_context *) ctx );
return( ctx );
}
static void md2_ctx_free( void *ctx )
{
mbedtls_md2_free( (mbedtls_md2_context *) ctx );
mbedtls_free( ctx );
}
static void md2_clone_wrap( void *dst, const void *src )
{
mbedtls_md2_clone( (mbedtls_md2_context *) dst,
(const mbedtls_md2_context *) src );
}
static int md2_process_wrap( void *ctx, const unsigned char *data )
{
((void) data);
return( mbedtls_internal_md2_process( (mbedtls_md2_context *) ctx ) );
}
const mbedtls_md_info_t mbedtls_md2_info = {
MBEDTLS_MD_MD2,
"MD2",
16,
16,
md2_starts_wrap,
md2_update_wrap,
md2_finish_wrap,
mbedtls_md2_ret,
md2_ctx_alloc,
md2_ctx_free,
md2_clone_wrap,
md2_process_wrap,
};
#endif /* MBEDTLS_MD2_C */
#if defined(MBEDTLS_MD4_C)
static int md4_starts_wrap( void *ctx )
{
return( mbedtls_md4_starts_ret( (mbedtls_md4_context *) ctx ) );
}
static int md4_update_wrap( void *ctx, const unsigned char *input,
size_t ilen )
{
return( mbedtls_md4_update_ret( (mbedtls_md4_context *) ctx, input, ilen ) );
}
static int md4_finish_wrap( void *ctx, unsigned char *output )
{
return( mbedtls_md4_finish_ret( (mbedtls_md4_context *) ctx, output ) );
}
static void *md4_ctx_alloc( void )
{
void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_md4_context ) );
if( ctx != NULL )
mbedtls_md4_init( (mbedtls_md4_context *) ctx );
return( ctx );
}
static void md4_ctx_free( void *ctx )
{
mbedtls_md4_free( (mbedtls_md4_context *) ctx );
mbedtls_free( ctx );
}
static void md4_clone_wrap( void *dst, const void *src )
{
mbedtls_md4_clone( (mbedtls_md4_context *) dst,
(const mbedtls_md4_context *) src );
}
static int md4_process_wrap( void *ctx, const unsigned char *data )
{
return( mbedtls_internal_md4_process( (mbedtls_md4_context *) ctx, data ) );
}
const mbedtls_md_info_t mbedtls_md4_info = {
MBEDTLS_MD_MD4,
"MD4",
16,
64,
md4_starts_wrap,
md4_update_wrap,
md4_finish_wrap,
mbedtls_md4_ret,
md4_ctx_alloc,
md4_ctx_free,
md4_clone_wrap,
md4_process_wrap,
};
#endif /* MBEDTLS_MD4_C */
#if defined(MBEDTLS_MD5_C)
static int md5_starts_wrap( void *ctx )
{
return( mbedtls_md5_starts_ret( (mbedtls_md5_context *) ctx ) );
}
static int md5_update_wrap( void *ctx, const unsigned char *input,
size_t ilen )
{
return( mbedtls_md5_update_ret( (mbedtls_md5_context *) ctx, input, ilen ) );
}
static int md5_finish_wrap( void *ctx, unsigned char *output )
{
return( mbedtls_md5_finish_ret( (mbedtls_md5_context *) ctx, output ) );
}
static void *md5_ctx_alloc( void )
{
void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_md5_context ) );
if( ctx != NULL )
mbedtls_md5_init( (mbedtls_md5_context *) ctx );
return( ctx );
}
static void md5_ctx_free( void *ctx )
{
mbedtls_md5_free( (mbedtls_md5_context *) ctx );
mbedtls_free( ctx );
}
static void md5_clone_wrap( void *dst, const void *src )
{
mbedtls_md5_clone( (mbedtls_md5_context *) dst,
(const mbedtls_md5_context *) src );
}
static int md5_process_wrap( void *ctx, const unsigned char *data )
{
return( mbedtls_internal_md5_process( (mbedtls_md5_context *) ctx, data ) );
}
const mbedtls_md_info_t mbedtls_md5_info = {
MBEDTLS_MD_MD5,
"MD5",
16,
64,
md5_starts_wrap,
md5_update_wrap,
md5_finish_wrap,
mbedtls_md5_ret,
md5_ctx_alloc,
md5_ctx_free,
md5_clone_wrap,
md5_process_wrap,
};
#endif /* MBEDTLS_MD5_C */
#if defined(MBEDTLS_RIPEMD160_C)
static int ripemd160_starts_wrap( void *ctx )
{
return( mbedtls_ripemd160_starts_ret( (mbedtls_ripemd160_context *) ctx ) );
}
static int ripemd160_update_wrap( void *ctx, const unsigned char *input,
size_t ilen )
{
return( mbedtls_ripemd160_update_ret( (mbedtls_ripemd160_context *) ctx,
input, ilen ) );
}
static int ripemd160_finish_wrap( void *ctx, unsigned char *output )
{
return( mbedtls_ripemd160_finish_ret( (mbedtls_ripemd160_context *) ctx,
output ) );
}
static void *ripemd160_ctx_alloc( void )
{
void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ripemd160_context ) );
if( ctx != NULL )
mbedtls_ripemd160_init( (mbedtls_ripemd160_context *) ctx );
return( ctx );
}
static void ripemd160_ctx_free( void *ctx )
{
mbedtls_ripemd160_free( (mbedtls_ripemd160_context *) ctx );
mbedtls_free( ctx );
}
static void ripemd160_clone_wrap( void *dst, const void *src )
{
mbedtls_ripemd160_clone( (mbedtls_ripemd160_context *) dst,
(const mbedtls_ripemd160_context *) src );
}
static int ripemd160_process_wrap( void *ctx, const unsigned char *data )
{
return( mbedtls_internal_ripemd160_process(
(mbedtls_ripemd160_context *) ctx, data ) );
}
const mbedtls_md_info_t mbedtls_ripemd160_info = {
MBEDTLS_MD_RIPEMD160,
"RIPEMD160",
20,
64,
ripemd160_starts_wrap,
ripemd160_update_wrap,
ripemd160_finish_wrap,
mbedtls_ripemd160_ret,
ripemd160_ctx_alloc,
ripemd160_ctx_free,
ripemd160_clone_wrap,
ripemd160_process_wrap,
};
#endif /* MBEDTLS_RIPEMD160_C */
#if defined(MBEDTLS_SHA1_C)
static int sha1_starts_wrap( void *ctx )
{
return( mbedtls_sha1_starts_ret( (mbedtls_sha1_context *) ctx ) );
}
static int sha1_update_wrap( void *ctx, const unsigned char *input,
size_t ilen )
{
return( mbedtls_sha1_update_ret( (mbedtls_sha1_context *) ctx,
input, ilen ) );
}
static int sha1_finish_wrap( void *ctx, unsigned char *output )
{
return( mbedtls_sha1_finish_ret( (mbedtls_sha1_context *) ctx, output ) );
}
static void *sha1_ctx_alloc( void )
{
void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_sha1_context ) );
if( ctx != NULL )
mbedtls_sha1_init( (mbedtls_sha1_context *) ctx );
return( ctx );
}
static void sha1_clone_wrap( void *dst, const void *src )
{
mbedtls_sha1_clone( (mbedtls_sha1_context *) dst,
(const mbedtls_sha1_context *) src );
}
static void sha1_ctx_free( void *ctx )
{
mbedtls_sha1_free( (mbedtls_sha1_context *) ctx );
mbedtls_free( ctx );
}
static int sha1_process_wrap( void *ctx, const unsigned char *data )
{
return( mbedtls_internal_sha1_process( (mbedtls_sha1_context *) ctx,
data ) );
}
const mbedtls_md_info_t mbedtls_sha1_info = {
MBEDTLS_MD_SHA1,
"SHA1",
20,
64,
sha1_starts_wrap,
sha1_update_wrap,
sha1_finish_wrap,
mbedtls_sha1_ret,
sha1_ctx_alloc,
sha1_ctx_free,
sha1_clone_wrap,
sha1_process_wrap,
};
#endif /* MBEDTLS_SHA1_C */
/*
* Wrappers for generic message digests
*/
#if defined(MBEDTLS_SHA256_C)
static int sha224_starts_wrap( void *ctx )
{
return( mbedtls_sha256_starts_ret( (mbedtls_sha256_context *) ctx, 1 ) );
}
static int sha224_update_wrap( void *ctx, const unsigned char *input,
size_t ilen )
{
return( mbedtls_sha256_update_ret( (mbedtls_sha256_context *) ctx,
input, ilen ) );
}
static int sha224_finish_wrap( void *ctx, unsigned char *output )
{
return( mbedtls_sha256_finish_ret( (mbedtls_sha256_context *) ctx,
output ) );
}
static int sha224_wrap( const unsigned char *input, size_t ilen,
unsigned char *output )
{
return( mbedtls_sha256_ret( input, ilen, output, 1 ) );
}
static void *sha224_ctx_alloc( void )
{
void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_sha256_context ) );
if( ctx != NULL )
mbedtls_sha256_init( (mbedtls_sha256_context *) ctx );
return( ctx );
}
static void sha224_ctx_free( void *ctx )
{
mbedtls_sha256_free( (mbedtls_sha256_context *) ctx );
mbedtls_free( ctx );
}
static void sha224_clone_wrap( void *dst, const void *src )
{
mbedtls_sha256_clone( (mbedtls_sha256_context *) dst,
(const mbedtls_sha256_context *) src );
}
static int sha224_process_wrap( void *ctx, const unsigned char *data )
{
return( mbedtls_internal_sha256_process( (mbedtls_sha256_context *) ctx,
data ) );
}
const mbedtls_md_info_t mbedtls_sha224_info = {
MBEDTLS_MD_SHA224,
"SHA224",
28,
64,
sha224_starts_wrap,
sha224_update_wrap,
sha224_finish_wrap,
sha224_wrap,
sha224_ctx_alloc,
sha224_ctx_free,
sha224_clone_wrap,
sha224_process_wrap,
};
static int sha256_starts_wrap( void *ctx )
{
return( mbedtls_sha256_starts_ret( (mbedtls_sha256_context *) ctx, 0 ) );
}
static int sha256_wrap( const unsigned char *input, size_t ilen,
unsigned char *output )
{
return( mbedtls_sha256_ret( input, ilen, output, 0 ) );
}
const mbedtls_md_info_t mbedtls_sha256_info = {
MBEDTLS_MD_SHA256,
"SHA256",
32,
64,
sha256_starts_wrap,
sha224_update_wrap,
sha224_finish_wrap,
sha256_wrap,
sha224_ctx_alloc,
sha224_ctx_free,
sha224_clone_wrap,
sha224_process_wrap,
};
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
static int sha384_starts_wrap( void *ctx )
{
return( mbedtls_sha512_starts_ret( (mbedtls_sha512_context *) ctx, 1 ) );
}
static int sha384_update_wrap( void *ctx, const unsigned char *input,
size_t ilen )
{
return( mbedtls_sha512_update_ret( (mbedtls_sha512_context *) ctx,
input, ilen ) );
}
static int sha384_finish_wrap( void *ctx, unsigned char *output )
{
return( mbedtls_sha512_finish_ret( (mbedtls_sha512_context *) ctx,
output ) );
}
static int sha384_wrap( const unsigned char *input, size_t ilen,
unsigned char *output )
{
return( mbedtls_sha512_ret( input, ilen, output, 1 ) );
}
static void *sha384_ctx_alloc( void )
{
void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_sha512_context ) );
if( ctx != NULL )
mbedtls_sha512_init( (mbedtls_sha512_context *) ctx );
return( ctx );
}
static void sha384_ctx_free( void *ctx )
{
mbedtls_sha512_free( (mbedtls_sha512_context *) ctx );
mbedtls_free( ctx );
}
static void sha384_clone_wrap( void *dst, const void *src )
{
mbedtls_sha512_clone( (mbedtls_sha512_context *) dst,
(const mbedtls_sha512_context *) src );
}
static int sha384_process_wrap( void *ctx, const unsigned char *data )
{
return( mbedtls_internal_sha512_process( (mbedtls_sha512_context *) ctx,
data ) );
}
const mbedtls_md_info_t mbedtls_sha384_info = {
MBEDTLS_MD_SHA384,
"SHA384",
48,
128,
sha384_starts_wrap,
sha384_update_wrap,
sha384_finish_wrap,
sha384_wrap,
sha384_ctx_alloc,
sha384_ctx_free,
sha384_clone_wrap,
sha384_process_wrap,
};
static int sha512_starts_wrap( void *ctx )
{
return( mbedtls_sha512_starts_ret( (mbedtls_sha512_context *) ctx, 0 ) );
}
static int sha512_wrap( const unsigned char *input, size_t ilen,
unsigned char *output )
{
return( mbedtls_sha512_ret( input, ilen, output, 0 ) );
}
const mbedtls_md_info_t mbedtls_sha512_info = {
MBEDTLS_MD_SHA512,
"SHA512",
64,
128,
sha512_starts_wrap,
sha384_update_wrap,
sha384_finish_wrap,
sha512_wrap,
sha384_ctx_alloc,
sha384_ctx_free,
sha384_clone_wrap,
sha384_process_wrap,
};
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_MD_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/md_wrap.c | C | apache-2.0 | 14,152 |
/*
* Buffer-based memory allocator
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
#include "mbedtls/memory_buffer_alloc.h"
/* No need for the header guard as MBEDTLS_MEMORY_BUFFER_ALLOC_C
is dependent upon MBEDTLS_PLATFORM_C */
#include "mbedtls/platform.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_MEMORY_BACKTRACE)
#include <execinfo.h>
#endif
#if defined(MBEDTLS_THREADING_C)
#include "mbedtls/threading.h"
#endif
#define MAGIC1 0xFF00AA55
#define MAGIC2 0xEE119966
#define MAX_BT 20
typedef struct _memory_header memory_header;
struct _memory_header
{
size_t magic1;
size_t size;
size_t alloc;
memory_header *prev;
memory_header *next;
memory_header *prev_free;
memory_header *next_free;
#if defined(MBEDTLS_MEMORY_BACKTRACE)
char **trace;
size_t trace_count;
#endif
size_t magic2;
};
typedef struct
{
unsigned char *buf;
size_t len;
memory_header *first;
memory_header *first_free;
int verify;
#if defined(MBEDTLS_MEMORY_DEBUG)
size_t alloc_count;
size_t free_count;
size_t total_used;
size_t maximum_used;
size_t header_count;
size_t maximum_header_count;
#endif
#if defined(MBEDTLS_THREADING_C)
mbedtls_threading_mutex_t mutex;
#endif
}
buffer_alloc_ctx;
static buffer_alloc_ctx heap;
#if defined(MBEDTLS_MEMORY_DEBUG)
static void debug_header( memory_header *hdr )
{
#if defined(MBEDTLS_MEMORY_BACKTRACE)
size_t i;
#endif
mbedtls_fprintf( stderr, "HDR: PTR(%10zu), PREV(%10zu), NEXT(%10zu), "
"ALLOC(%zu), SIZE(%10zu)\n",
(size_t) hdr, (size_t) hdr->prev, (size_t) hdr->next,
hdr->alloc, hdr->size );
mbedtls_fprintf( stderr, " FPREV(%10zu), FNEXT(%10zu)\n",
(size_t) hdr->prev_free, (size_t) hdr->next_free );
#if defined(MBEDTLS_MEMORY_BACKTRACE)
mbedtls_fprintf( stderr, "TRACE: \n" );
for( i = 0; i < hdr->trace_count; i++ )
mbedtls_fprintf( stderr, "%s\n", hdr->trace[i] );
mbedtls_fprintf( stderr, "\n" );
#endif
}
static void debug_chain( void )
{
memory_header *cur = heap.first;
mbedtls_fprintf( stderr, "\nBlock list\n" );
while( cur != NULL )
{
debug_header( cur );
cur = cur->next;
}
mbedtls_fprintf( stderr, "Free list\n" );
cur = heap.first_free;
while( cur != NULL )
{
debug_header( cur );
cur = cur->next_free;
}
}
#endif /* MBEDTLS_MEMORY_DEBUG */
static int verify_header( memory_header *hdr )
{
if( hdr->magic1 != MAGIC1 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: MAGIC1 mismatch\n" );
#endif
return( 1 );
}
if( hdr->magic2 != MAGIC2 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: MAGIC2 mismatch\n" );
#endif
return( 1 );
}
if( hdr->alloc > 1 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: alloc has illegal value\n" );
#endif
return( 1 );
}
if( hdr->prev != NULL && hdr->prev == hdr->next )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: prev == next\n" );
#endif
return( 1 );
}
if( hdr->prev_free != NULL && hdr->prev_free == hdr->next_free )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: prev_free == next_free\n" );
#endif
return( 1 );
}
return( 0 );
}
static int verify_chain( void )
{
memory_header *prv = heap.first, *cur;
if( prv == NULL || verify_header( prv ) != 0 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: verification of first header "
"failed\n" );
#endif
return( 1 );
}
if( heap.first->prev != NULL )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: verification failed: "
"first->prev != NULL\n" );
#endif
return( 1 );
}
cur = heap.first->next;
while( cur != NULL )
{
if( verify_header( cur ) != 0 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: verification of header "
"failed\n" );
#endif
return( 1 );
}
if( cur->prev != prv )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: verification failed: "
"cur->prev != prv\n" );
#endif
return( 1 );
}
prv = cur;
cur = cur->next;
}
return( 0 );
}
static void *buffer_alloc_calloc( size_t n, size_t size )
{
memory_header *new, *cur = heap.first_free;
unsigned char *p;
void *ret;
size_t original_len, len;
#if defined(MBEDTLS_MEMORY_BACKTRACE)
void *trace_buffer[MAX_BT];
size_t trace_cnt;
#endif
if( heap.buf == NULL || heap.first == NULL )
return( NULL );
original_len = len = n * size;
if( n == 0 || size == 0 || len / n != size )
return( NULL );
else if( len > (size_t)-MBEDTLS_MEMORY_ALIGN_MULTIPLE )
return( NULL );
if( len % MBEDTLS_MEMORY_ALIGN_MULTIPLE )
{
len -= len % MBEDTLS_MEMORY_ALIGN_MULTIPLE;
len += MBEDTLS_MEMORY_ALIGN_MULTIPLE;
}
// Find block that fits
//
while( cur != NULL )
{
if( cur->size >= len )
break;
cur = cur->next_free;
}
if( cur == NULL )
return( NULL );
if( cur->alloc != 0 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: block in free_list but allocated "
"data\n" );
#endif
mbedtls_exit( 1 );
}
#if defined(MBEDTLS_MEMORY_DEBUG)
heap.alloc_count++;
#endif
// Found location, split block if > memory_header + 4 room left
//
if( cur->size - len < sizeof(memory_header) +
MBEDTLS_MEMORY_ALIGN_MULTIPLE )
{
cur->alloc = 1;
// Remove from free_list
//
if( cur->prev_free != NULL )
cur->prev_free->next_free = cur->next_free;
else
heap.first_free = cur->next_free;
if( cur->next_free != NULL )
cur->next_free->prev_free = cur->prev_free;
cur->prev_free = NULL;
cur->next_free = NULL;
#if defined(MBEDTLS_MEMORY_DEBUG)
heap.total_used += cur->size;
if( heap.total_used > heap.maximum_used )
heap.maximum_used = heap.total_used;
#endif
#if defined(MBEDTLS_MEMORY_BACKTRACE)
trace_cnt = backtrace( trace_buffer, MAX_BT );
cur->trace = backtrace_symbols( trace_buffer, trace_cnt );
cur->trace_count = trace_cnt;
#endif
if( ( heap.verify & MBEDTLS_MEMORY_VERIFY_ALLOC ) && verify_chain() != 0 )
mbedtls_exit( 1 );
ret = (unsigned char *) cur + sizeof( memory_header );
memset( ret, 0, original_len );
return( ret );
}
p = ( (unsigned char *) cur ) + sizeof(memory_header) + len;
new = (memory_header *) p;
new->size = cur->size - len - sizeof(memory_header);
new->alloc = 0;
new->prev = cur;
new->next = cur->next;
#if defined(MBEDTLS_MEMORY_BACKTRACE)
new->trace = NULL;
new->trace_count = 0;
#endif
new->magic1 = MAGIC1;
new->magic2 = MAGIC2;
if( new->next != NULL )
new->next->prev = new;
// Replace cur with new in free_list
//
new->prev_free = cur->prev_free;
new->next_free = cur->next_free;
if( new->prev_free != NULL )
new->prev_free->next_free = new;
else
heap.first_free = new;
if( new->next_free != NULL )
new->next_free->prev_free = new;
cur->alloc = 1;
cur->size = len;
cur->next = new;
cur->prev_free = NULL;
cur->next_free = NULL;
#if defined(MBEDTLS_MEMORY_DEBUG)
heap.header_count++;
if( heap.header_count > heap.maximum_header_count )
heap.maximum_header_count = heap.header_count;
heap.total_used += cur->size;
if( heap.total_used > heap.maximum_used )
heap.maximum_used = heap.total_used;
#endif
#if defined(MBEDTLS_MEMORY_BACKTRACE)
trace_cnt = backtrace( trace_buffer, MAX_BT );
cur->trace = backtrace_symbols( trace_buffer, trace_cnt );
cur->trace_count = trace_cnt;
#endif
if( ( heap.verify & MBEDTLS_MEMORY_VERIFY_ALLOC ) && verify_chain() != 0 )
mbedtls_exit( 1 );
ret = (unsigned char *) cur + sizeof( memory_header );
memset( ret, 0, original_len );
return( ret );
}
static void buffer_alloc_free( void *ptr )
{
memory_header *hdr, *old = NULL;
unsigned char *p = (unsigned char *) ptr;
if( ptr == NULL || heap.buf == NULL || heap.first == NULL )
return;
if( p < heap.buf || p >= heap.buf + heap.len )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: mbedtls_free() outside of managed "
"space\n" );
#endif
mbedtls_exit( 1 );
}
p -= sizeof(memory_header);
hdr = (memory_header *) p;
if( verify_header( hdr ) != 0 )
mbedtls_exit( 1 );
if( hdr->alloc != 1 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
mbedtls_fprintf( stderr, "FATAL: mbedtls_free() on unallocated "
"data\n" );
#endif
mbedtls_exit( 1 );
}
hdr->alloc = 0;
#if defined(MBEDTLS_MEMORY_DEBUG)
heap.free_count++;
heap.total_used -= hdr->size;
#endif
#if defined(MBEDTLS_MEMORY_BACKTRACE)
free( hdr->trace );
hdr->trace = NULL;
hdr->trace_count = 0;
#endif
// Regroup with block before
//
if( hdr->prev != NULL && hdr->prev->alloc == 0 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
heap.header_count--;
#endif
hdr->prev->size += sizeof(memory_header) + hdr->size;
hdr->prev->next = hdr->next;
old = hdr;
hdr = hdr->prev;
if( hdr->next != NULL )
hdr->next->prev = hdr;
memset( old, 0, sizeof(memory_header) );
}
// Regroup with block after
//
if( hdr->next != NULL && hdr->next->alloc == 0 )
{
#if defined(MBEDTLS_MEMORY_DEBUG)
heap.header_count--;
#endif
hdr->size += sizeof(memory_header) + hdr->next->size;
old = hdr->next;
hdr->next = hdr->next->next;
if( hdr->prev_free != NULL || hdr->next_free != NULL )
{
if( hdr->prev_free != NULL )
hdr->prev_free->next_free = hdr->next_free;
else
heap.first_free = hdr->next_free;
if( hdr->next_free != NULL )
hdr->next_free->prev_free = hdr->prev_free;
}
hdr->prev_free = old->prev_free;
hdr->next_free = old->next_free;
if( hdr->prev_free != NULL )
hdr->prev_free->next_free = hdr;
else
heap.first_free = hdr;
if( hdr->next_free != NULL )
hdr->next_free->prev_free = hdr;
if( hdr->next != NULL )
hdr->next->prev = hdr;
memset( old, 0, sizeof(memory_header) );
}
// Prepend to free_list if we have not merged
// (Does not have to stay in same order as prev / next list)
//
if( old == NULL )
{
hdr->next_free = heap.first_free;
if( heap.first_free != NULL )
heap.first_free->prev_free = hdr;
heap.first_free = hdr;
}
if( ( heap.verify & MBEDTLS_MEMORY_VERIFY_FREE ) && verify_chain() != 0 )
mbedtls_exit( 1 );
}
void mbedtls_memory_buffer_set_verify( int verify )
{
heap.verify = verify;
}
int mbedtls_memory_buffer_alloc_verify( void )
{
return verify_chain();
}
#if defined(MBEDTLS_MEMORY_DEBUG)
void mbedtls_memory_buffer_alloc_status( void )
{
mbedtls_fprintf( stderr,
"Current use: %zu blocks / %zu bytes, max: %zu blocks / "
"%zu bytes (total %zu bytes), alloc / free: %zu / %zu\n",
heap.header_count, heap.total_used,
heap.maximum_header_count, heap.maximum_used,
heap.maximum_header_count * sizeof( memory_header )
+ heap.maximum_used,
heap.alloc_count, heap.free_count );
if( heap.first->next == NULL )
{
mbedtls_fprintf( stderr, "All memory de-allocated in stack buffer\n" );
}
else
{
mbedtls_fprintf( stderr, "Memory currently allocated:\n" );
debug_chain();
}
}
void mbedtls_memory_buffer_alloc_max_get( size_t *max_used, size_t *max_blocks )
{
*max_used = heap.maximum_used;
*max_blocks = heap.maximum_header_count;
}
void mbedtls_memory_buffer_alloc_max_reset( void )
{
heap.maximum_used = 0;
heap.maximum_header_count = 0;
}
void mbedtls_memory_buffer_alloc_cur_get( size_t *cur_used, size_t *cur_blocks )
{
*cur_used = heap.total_used;
*cur_blocks = heap.header_count;
}
#endif /* MBEDTLS_MEMORY_DEBUG */
#if defined(MBEDTLS_THREADING_C)
static void *buffer_alloc_calloc_mutexed( size_t n, size_t size )
{
void *buf;
if( mbedtls_mutex_lock( &heap.mutex ) != 0 )
return( NULL );
buf = buffer_alloc_calloc( n, size );
if( mbedtls_mutex_unlock( &heap.mutex ) )
return( NULL );
return( buf );
}
static void buffer_alloc_free_mutexed( void *ptr )
{
/* We have to good option here, but corrupting the heap seems
* worse than loosing memory. */
if( mbedtls_mutex_lock( &heap.mutex ) )
return;
buffer_alloc_free( ptr );
(void) mbedtls_mutex_unlock( &heap.mutex );
}
#endif /* MBEDTLS_THREADING_C */
void mbedtls_memory_buffer_alloc_init( unsigned char *buf, size_t len )
{
memset( &heap, 0, sizeof( buffer_alloc_ctx ) );
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_init( &heap.mutex );
mbedtls_platform_set_calloc_free( buffer_alloc_calloc_mutexed,
buffer_alloc_free_mutexed );
#else
mbedtls_platform_set_calloc_free( buffer_alloc_calloc, buffer_alloc_free );
#endif
if( len < sizeof( memory_header ) + MBEDTLS_MEMORY_ALIGN_MULTIPLE )
return;
else if( (size_t)buf % MBEDTLS_MEMORY_ALIGN_MULTIPLE )
{
/* Adjust len first since buf is used in the computation */
len -= MBEDTLS_MEMORY_ALIGN_MULTIPLE
- (size_t)buf % MBEDTLS_MEMORY_ALIGN_MULTIPLE;
buf += MBEDTLS_MEMORY_ALIGN_MULTIPLE
- (size_t)buf % MBEDTLS_MEMORY_ALIGN_MULTIPLE;
}
memset( buf, 0, len );
heap.buf = buf;
heap.len = len;
heap.first = (memory_header *)buf;
heap.first->size = len - sizeof( memory_header );
heap.first->magic1 = MAGIC1;
heap.first->magic2 = MAGIC2;
heap.first_free = heap.first;
}
void mbedtls_memory_buffer_alloc_free( void )
{
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_free( &heap.mutex );
#endif
mbedtls_platform_zeroize( &heap, sizeof(buffer_alloc_ctx) );
}
#if defined(MBEDTLS_SELF_TEST)
static int check_pointer( void *p )
{
if( p == NULL )
return( -1 );
if( (size_t) p % MBEDTLS_MEMORY_ALIGN_MULTIPLE != 0 )
return( -1 );
return( 0 );
}
static int check_all_free( void )
{
if(
#if defined(MBEDTLS_MEMORY_DEBUG)
heap.total_used != 0 ||
#endif
heap.first != heap.first_free ||
(void *) heap.first != (void *) heap.buf )
{
return( -1 );
}
return( 0 );
}
#define TEST_ASSERT( condition ) \
if( ! (condition) ) \
{ \
if( verbose != 0 ) \
mbedtls_printf( "failed\n" ); \
\
ret = 1; \
goto cleanup; \
}
int mbedtls_memory_buffer_alloc_self_test( int verbose )
{
unsigned char buf[1024];
unsigned char *p, *q, *r, *end;
int ret = 0;
if( verbose != 0 )
mbedtls_printf( " MBA test #1 (basic alloc-free cycle): " );
mbedtls_memory_buffer_alloc_init( buf, sizeof( buf ) );
p = mbedtls_calloc( 1, 1 );
q = mbedtls_calloc( 1, 128 );
r = mbedtls_calloc( 1, 16 );
TEST_ASSERT( check_pointer( p ) == 0 &&
check_pointer( q ) == 0 &&
check_pointer( r ) == 0 );
mbedtls_free( r );
mbedtls_free( q );
mbedtls_free( p );
TEST_ASSERT( check_all_free( ) == 0 );
/* Memorize end to compare with the next test */
end = heap.buf + heap.len;
mbedtls_memory_buffer_alloc_free( );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
if( verbose != 0 )
mbedtls_printf( " MBA test #2 (buf not aligned): " );
mbedtls_memory_buffer_alloc_init( buf + 1, sizeof( buf ) - 1 );
TEST_ASSERT( heap.buf + heap.len == end );
p = mbedtls_calloc( 1, 1 );
q = mbedtls_calloc( 1, 128 );
r = mbedtls_calloc( 1, 16 );
TEST_ASSERT( check_pointer( p ) == 0 &&
check_pointer( q ) == 0 &&
check_pointer( r ) == 0 );
mbedtls_free( r );
mbedtls_free( q );
mbedtls_free( p );
TEST_ASSERT( check_all_free( ) == 0 );
mbedtls_memory_buffer_alloc_free( );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
if( verbose != 0 )
mbedtls_printf( " MBA test #3 (full): " );
mbedtls_memory_buffer_alloc_init( buf, sizeof( buf ) );
p = mbedtls_calloc( 1, sizeof( buf ) - sizeof( memory_header ) );
TEST_ASSERT( check_pointer( p ) == 0 );
TEST_ASSERT( mbedtls_calloc( 1, 1 ) == NULL );
mbedtls_free( p );
p = mbedtls_calloc( 1, sizeof( buf ) - 2 * sizeof( memory_header ) - 16 );
q = mbedtls_calloc( 1, 16 );
TEST_ASSERT( check_pointer( p ) == 0 && check_pointer( q ) == 0 );
TEST_ASSERT( mbedtls_calloc( 1, 1 ) == NULL );
mbedtls_free( q );
TEST_ASSERT( mbedtls_calloc( 1, 17 ) == NULL );
mbedtls_free( p );
TEST_ASSERT( check_all_free( ) == 0 );
mbedtls_memory_buffer_alloc_free( );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
cleanup:
mbedtls_memory_buffer_alloc_free( );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_MEMORY_BUFFER_ALLOC_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/memory_buffer_alloc.c | C | apache-2.0 | 19,374 |
/*
* TCP/IP or UDP/IP networking functions
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/* Enable definition of getaddrinfo() even when compiling with -std=c99. Must
* be set before config.h, which pulls in glibc's features.h indirectly.
* Harmless on other platforms. */
#define _POSIX_C_SOURCE 200112L
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_NET_C)
#if !defined(unix) && !defined(__unix__) && !defined(__unix) && \
!defined(__APPLE__) && !defined(_WIN32) && !defined(__QNXNTO__) && !defined(__CSKY__) && \
!defined(__HAIKU__)
#error "This module only works on Unix and Windows, see MBEDTLS_NET_C in config.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#endif
#include "mbedtls/net_sockets.h"
#include <string.h>
#if (defined(_WIN32) || defined(_WIN32_WCE)) && !defined(EFIX64) && \
!defined(EFI32)
#define IS_EINTR( ret ) ( ( ret ) == WSAEINTR )
#if !defined(_WIN32_WINNT) || (_WIN32_WINNT < 0x0501)
#undef _WIN32_WINNT
/* Enables getaddrinfo() & Co */
#define _WIN32_WINNT 0x0501
#endif
#include <ws2tcpip.h>
#include <winsock2.h>
#include <windows.h>
#if defined(_MSC_VER)
#if defined(_WIN32_WCE)
#pragma comment( lib, "ws2.lib" )
#else
#pragma comment( lib, "ws2_32.lib" )
#endif
#endif /* _MSC_VER */
#define read(fd,buf,len) recv( fd, (char*)( buf ), (int)( len ), 0 )
#define write(fd,buf,len) send( fd, (char*)( buf ), (int)( len ), 0 )
#define close(fd) closesocket(fd)
static int wsa_init_done = 0;
#else /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/time.h>
#include <unistd.h>
#include <signal.h>
#include <fcntl.h>
#include <netdb.h>
#include <errno.h>
#define IS_EINTR( ret ) ( ( ret ) == EINTR )
#endif /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */
/* Some MS functions want int and MSVC warns if we pass size_t,
* but the standard functions use socklen_t, so cast only for MSVC */
#if defined(_MSC_VER)
#define MSVC_INT_CAST (int)
#else
#define MSVC_INT_CAST
#endif
#include <stdio.h>
#include <time.h>
#include <stdint.h>
/*
* Prepare for using the sockets interface
*/
static int net_prepare( void )
{
#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
!defined(EFI32)
WSADATA wsaData;
if( wsa_init_done == 0 )
{
if( WSAStartup( MAKEWORD(2,0), &wsaData ) != 0 )
return( MBEDTLS_ERR_NET_SOCKET_FAILED );
wsa_init_done = 1;
}
#else
#if !defined(EFIX64) && !defined(EFI32) && !defined(__CSKY__)
signal( SIGPIPE, SIG_IGN );
#endif
#endif
return( 0 );
}
/*
* Initialize a context
*/
void mbedtls_net_init( mbedtls_net_context *ctx )
{
ctx->fd = -1;
}
/*
* Initiate a TCP connection with host:port and the given protocol
*/
int mbedtls_net_connect( mbedtls_net_context *ctx, const char *host,
const char *port, int proto )
{
int ret;
struct addrinfo hints, *addr_list, *cur;
if( ( ret = net_prepare() ) != 0 )
return( ret );
/* Do name resolution with both IPv6 and IPv4 */
memset( &hints, 0, sizeof( hints ) );
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = proto == MBEDTLS_NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM;
hints.ai_protocol = proto == MBEDTLS_NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP;
if( getaddrinfo( host, port, &hints, &addr_list ) != 0 )
return( MBEDTLS_ERR_NET_UNKNOWN_HOST );
/* Try the sockaddrs until a connection succeeds */
ret = MBEDTLS_ERR_NET_UNKNOWN_HOST;
for( cur = addr_list; cur != NULL; cur = cur->ai_next )
{
ctx->fd = (int) socket( cur->ai_family, cur->ai_socktype,
cur->ai_protocol );
if( ctx->fd < 0 )
{
ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
continue;
}
if( connect( ctx->fd, cur->ai_addr, MSVC_INT_CAST cur->ai_addrlen ) == 0 )
{
ret = 0;
break;
}
close( ctx->fd );
ret = MBEDTLS_ERR_NET_CONNECT_FAILED;
}
freeaddrinfo( addr_list );
return( ret );
}
/*
* Create a listening socket on bind_ip:port
*/
int mbedtls_net_bind( mbedtls_net_context *ctx, const char *bind_ip, const char *port, int proto )
{
int n, ret;
struct addrinfo hints, *addr_list, *cur;
if( ( ret = net_prepare() ) != 0 )
return( ret );
/* Bind to IPv6 and/or IPv4, but only in the desired protocol */
memset( &hints, 0, sizeof( hints ) );
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = proto == MBEDTLS_NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM;
hints.ai_protocol = proto == MBEDTLS_NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP;
if( bind_ip == NULL )
hints.ai_flags = AI_PASSIVE;
if( getaddrinfo( bind_ip, port, &hints, &addr_list ) != 0 )
return( MBEDTLS_ERR_NET_UNKNOWN_HOST );
/* Try the sockaddrs until a binding succeeds */
ret = MBEDTLS_ERR_NET_UNKNOWN_HOST;
for( cur = addr_list; cur != NULL; cur = cur->ai_next )
{
ctx->fd = (int) socket( cur->ai_family, cur->ai_socktype,
cur->ai_protocol );
if( ctx->fd < 0 )
{
ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
continue;
}
n = 1;
if( setsockopt( ctx->fd, SOL_SOCKET, SO_REUSEADDR,
(const char *) &n, sizeof( n ) ) != 0 )
{
close( ctx->fd );
ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
continue;
}
if( bind( ctx->fd, cur->ai_addr, MSVC_INT_CAST cur->ai_addrlen ) != 0 )
{
close( ctx->fd );
ret = MBEDTLS_ERR_NET_BIND_FAILED;
continue;
}
/* Listen only makes sense for TCP */
if( proto == MBEDTLS_NET_PROTO_TCP )
{
if( listen( ctx->fd, MBEDTLS_NET_LISTEN_BACKLOG ) != 0 )
{
close( ctx->fd );
ret = MBEDTLS_ERR_NET_LISTEN_FAILED;
continue;
}
}
/* Bind was successful */
ret = 0;
break;
}
freeaddrinfo( addr_list );
return( ret );
}
#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
!defined(EFI32)
/*
* Check if the requested operation would be blocking on a non-blocking socket
* and thus 'failed' with a negative return value.
*/
static int net_would_block( const mbedtls_net_context *ctx )
{
((void) ctx);
return( WSAGetLastError() == WSAEWOULDBLOCK );
}
#else
/*
* Check if the requested operation would be blocking on a non-blocking socket
* and thus 'failed' with a negative return value.
*
* Note: on a blocking socket this function always returns 0!
*/
static int net_would_block( const mbedtls_net_context *ctx )
{
int err = errno;
/*
* Never return 'WOULD BLOCK' on a non-blocking socket
*/
if( ( fcntl( ctx->fd, F_GETFL ) & O_NONBLOCK ) != O_NONBLOCK )
{
errno = err;
return( 0 );
}
switch( errno = err )
{
#if defined EAGAIN
case EAGAIN:
#endif
#if defined EWOULDBLOCK && EWOULDBLOCK != EAGAIN
case EWOULDBLOCK:
#endif
return( 1 );
}
return( 0 );
}
#endif /* ( _WIN32 || _WIN32_WCE ) && !EFIX64 && !EFI32 */
/*
* Accept a connection from a remote client
*/
int mbedtls_net_accept( mbedtls_net_context *bind_ctx,
mbedtls_net_context *client_ctx,
void *client_ip, size_t buf_size, size_t *ip_len )
{
int ret;
int type;
struct sockaddr_storage client_addr;
#if defined(__socklen_t_defined) || defined(_SOCKLEN_T) || \
defined(_SOCKLEN_T_DECLARED) || defined(__DEFINED_socklen_t)
socklen_t n = (socklen_t) sizeof( client_addr );
socklen_t type_len = (socklen_t) sizeof( type );
#else
int n = (int) sizeof( client_addr );
int type_len = (int) sizeof( type );
#endif
/* Is this a TCP or UDP socket? */
if( getsockopt( bind_ctx->fd, SOL_SOCKET, SO_TYPE,
(void *) &type, &type_len ) != 0 ||
( type != SOCK_STREAM && type != SOCK_DGRAM ) )
{
return( MBEDTLS_ERR_NET_ACCEPT_FAILED );
}
if( type == SOCK_STREAM )
{
/* TCP: actual accept() */
ret = client_ctx->fd = (int) accept( bind_ctx->fd,
(struct sockaddr *) &client_addr, &n );
}
else
{
/* UDP: wait for a message, but keep it in the queue */
char buf[1] = { 0 };
ret = (int) recvfrom( bind_ctx->fd, buf, sizeof( buf ), MSG_PEEK,
(struct sockaddr *) &client_addr, &n );
#if defined(_WIN32)
if( ret == SOCKET_ERROR &&
WSAGetLastError() == WSAEMSGSIZE )
{
/* We know buf is too small, thanks, just peeking here */
ret = 0;
}
#endif
}
if( ret < 0 )
{
if( net_would_block( bind_ctx ) != 0 )
return( MBEDTLS_ERR_SSL_WANT_READ );
return( MBEDTLS_ERR_NET_ACCEPT_FAILED );
}
/* UDP: hijack the listening socket to communicate with the client,
* then bind a new socket to accept new connections */
if( type != SOCK_STREAM )
{
struct sockaddr_storage local_addr;
int one = 1;
if( connect( bind_ctx->fd, (struct sockaddr *) &client_addr, n ) != 0 )
return( MBEDTLS_ERR_NET_ACCEPT_FAILED );
client_ctx->fd = bind_ctx->fd;
bind_ctx->fd = -1; /* In case we exit early */
n = sizeof( struct sockaddr_storage );
if( getsockname( client_ctx->fd,
(struct sockaddr *) &local_addr, &n ) != 0 ||
( bind_ctx->fd = (int) socket( local_addr.ss_family,
SOCK_DGRAM, IPPROTO_UDP ) ) < 0 ||
setsockopt( bind_ctx->fd, SOL_SOCKET, SO_REUSEADDR,
(const char *) &one, sizeof( one ) ) != 0 )
{
return( MBEDTLS_ERR_NET_SOCKET_FAILED );
}
if( bind( bind_ctx->fd, (struct sockaddr *) &local_addr, n ) != 0 )
{
return( MBEDTLS_ERR_NET_BIND_FAILED );
}
}
if( client_ip != NULL )
{
if( client_addr.ss_family == AF_INET )
{
struct sockaddr_in *addr4 = (struct sockaddr_in *) &client_addr;
*ip_len = sizeof( addr4->sin_addr.s_addr );
if( buf_size < *ip_len )
return( MBEDTLS_ERR_NET_BUFFER_TOO_SMALL );
memcpy( client_ip, &addr4->sin_addr.s_addr, *ip_len );
}
else
{
struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *) &client_addr;
*ip_len = sizeof( addr6->sin6_addr.s6_addr );
if( buf_size < *ip_len )
return( MBEDTLS_ERR_NET_BUFFER_TOO_SMALL );
memcpy( client_ip, &addr6->sin6_addr.s6_addr, *ip_len);
}
}
return( 0 );
}
/*
* Set the socket blocking or non-blocking
*/
int mbedtls_net_set_block( mbedtls_net_context *ctx )
{
#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
!defined(EFI32)
u_long n = 0;
return( ioctlsocket( ctx->fd, FIONBIO, &n ) );
#else
return( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL ) & ~O_NONBLOCK ) );
#endif
}
int mbedtls_net_set_nonblock( mbedtls_net_context *ctx )
{
#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
!defined(EFI32)
u_long n = 1;
return( ioctlsocket( ctx->fd, FIONBIO, &n ) );
#else
return( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL ) | O_NONBLOCK ) );
#endif
}
/*
* Check if data is available on the socket
*/
int mbedtls_net_poll( mbedtls_net_context *ctx, uint32_t rw, uint32_t timeout )
{
int ret;
struct timeval tv;
fd_set read_fds;
fd_set write_fds;
int fd = ctx->fd;
if( fd < 0 )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
#if defined(__has_feature)
#if __has_feature(memory_sanitizer)
/* Ensure that memory sanitizers consider read_fds and write_fds as
* initialized even on platforms such as Glibc/x86_64 where FD_ZERO
* is implemented in assembly. */
memset( &read_fds, 0, sizeof( read_fds ) );
memset( &write_fds, 0, sizeof( write_fds ) );
#endif
#endif
FD_ZERO( &read_fds );
if( rw & MBEDTLS_NET_POLL_READ )
{
rw &= ~MBEDTLS_NET_POLL_READ;
FD_SET( fd, &read_fds );
}
FD_ZERO( &write_fds );
if( rw & MBEDTLS_NET_POLL_WRITE )
{
rw &= ~MBEDTLS_NET_POLL_WRITE;
FD_SET( fd, &write_fds );
}
if( rw != 0 )
return( MBEDTLS_ERR_NET_BAD_INPUT_DATA );
tv.tv_sec = timeout / 1000;
tv.tv_usec = ( timeout % 1000 ) * 1000;
do
{
ret = select( fd + 1, &read_fds, &write_fds, NULL,
timeout == (uint32_t) -1 ? NULL : &tv );
}
while( IS_EINTR( ret ) );
if( ret < 0 )
return( MBEDTLS_ERR_NET_POLL_FAILED );
ret = 0;
if( FD_ISSET( fd, &read_fds ) )
ret |= MBEDTLS_NET_POLL_READ;
if( FD_ISSET( fd, &write_fds ) )
ret |= MBEDTLS_NET_POLL_WRITE;
return( ret );
}
/*
* Portable usleep helper
*/
void mbedtls_net_usleep( unsigned long usec )
{
#if defined(_WIN32)
Sleep( ( usec + 999 ) / 1000 );
#else
struct timeval tv;
tv.tv_sec = usec / 1000000;
#if defined(__unix__) || defined(__unix) || \
( defined(__APPLE__) && defined(__MACH__) )
tv.tv_usec = (suseconds_t) usec % 1000000;
#else
tv.tv_usec = usec % 1000000;
#endif
select( 0, NULL, NULL, NULL, &tv );
#endif
}
/*
* Read at most 'len' characters
*/
int mbedtls_net_recv( void *ctx, unsigned char *buf, size_t len )
{
int ret;
int fd = ((mbedtls_net_context *) ctx)->fd;
if( fd < 0 )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
ret = (int) read( fd, buf, len );
if( ret < 0 )
{
if( net_would_block( ctx ) != 0 )
return( MBEDTLS_ERR_SSL_WANT_READ );
#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
!defined(EFI32)
if( WSAGetLastError() == WSAECONNRESET )
return( MBEDTLS_ERR_NET_CONN_RESET );
#else
if( errno == EPIPE || errno == ECONNRESET )
return( MBEDTLS_ERR_NET_CONN_RESET );
if( errno == EINTR )
return( MBEDTLS_ERR_SSL_WANT_READ );
#endif
return( MBEDTLS_ERR_NET_RECV_FAILED );
}
return( ret );
}
/*
* Read at most 'len' characters, blocking for at most 'timeout' ms
*/
int mbedtls_net_recv_timeout( void *ctx, unsigned char *buf,
size_t len, uint32_t timeout )
{
int ret;
struct timeval tv;
fd_set read_fds;
int fd = ((mbedtls_net_context *) ctx)->fd;
if( fd < 0 )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
FD_ZERO( &read_fds );
FD_SET( fd, &read_fds );
tv.tv_sec = timeout / 1000;
tv.tv_usec = ( timeout % 1000 ) * 1000;
ret = select( fd + 1, &read_fds, NULL, NULL, timeout == 0 ? NULL : &tv );
/* Zero fds ready means we timed out */
if( ret == 0 )
return( MBEDTLS_ERR_SSL_TIMEOUT );
if( ret < 0 )
{
#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
!defined(EFI32)
if( WSAGetLastError() == WSAEINTR )
return( MBEDTLS_ERR_SSL_WANT_READ );
#else
if( errno == EINTR )
return( MBEDTLS_ERR_SSL_WANT_READ );
#endif
return( MBEDTLS_ERR_NET_RECV_FAILED );
}
/* This call will not block */
return( mbedtls_net_recv( ctx, buf, len ) );
}
/*
* Write at most 'len' characters
*/
int mbedtls_net_send( void *ctx, const unsigned char *buf, size_t len )
{
int ret;
int fd = ((mbedtls_net_context *) ctx)->fd;
if( fd < 0 )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
ret = (int) write( fd, buf, len );
if( ret < 0 )
{
if( net_would_block( ctx ) != 0 )
return( MBEDTLS_ERR_SSL_WANT_WRITE );
#if ( defined(_WIN32) || defined(_WIN32_WCE) ) && !defined(EFIX64) && \
!defined(EFI32)
if( WSAGetLastError() == WSAECONNRESET )
return( MBEDTLS_ERR_NET_CONN_RESET );
#else
if( errno == EPIPE || errno == ECONNRESET )
return( MBEDTLS_ERR_NET_CONN_RESET );
if( errno == EINTR )
return( MBEDTLS_ERR_SSL_WANT_WRITE );
#endif
return( MBEDTLS_ERR_NET_SEND_FAILED );
}
return( ret );
}
/*
* Gracefully close the connection
*/
void mbedtls_net_free( mbedtls_net_context *ctx )
{
if( ctx->fd == -1 )
return;
shutdown( ctx->fd, 2 );
close( ctx->fd );
ctx->fd = -1;
}
#endif /* MBEDTLS_NET_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/net_sockets.c | C | apache-2.0 | 17,570 |
/*
* Implementation of NIST SP 800-38F key wrapping, supporting KW and KWP modes
* only
*
* Copyright (C) 2018, Arm Limited (or its affiliates), All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of Mbed TLS (https://tls.mbed.org)
*/
/*
* Definition of Key Wrapping:
* https://nvlpubs.nist.gov/nistpubs/SpecialPublications/NIST.SP.800-38F.pdf
* RFC 3394 "Advanced Encryption Standard (AES) Key Wrap Algorithm"
* RFC 5649 "Advanced Encryption Standard (AES) Key Wrap with Padding Algorithm"
*
* Note: RFC 3394 defines different methodology for intermediate operations for
* the wrapping and unwrapping operation than the definition in NIST SP 800-38F.
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_NIST_KW_C)
#include "mbedtls/nist_kw.h"
#include "mbedtls/platform_util.h"
#include <stdint.h>
#include <string.h>
#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
#if !defined(MBEDTLS_NIST_KW_ALT)
#define KW_SEMIBLOCK_LENGTH 8
#define MIN_SEMIBLOCKS_COUNT 3
/* constant-time buffer comparison */
static inline unsigned char mbedtls_nist_kw_safer_memcmp( const void *a, const void *b, size_t n )
{
size_t i;
volatile const unsigned char *A = (volatile const unsigned char *) a;
volatile const unsigned char *B = (volatile const unsigned char *) b;
volatile unsigned char diff = 0;
for( i = 0; i < n; i++ )
{
/* Read volatile data in order before computing diff.
* This avoids IAR compiler warning:
* 'the order of volatile accesses is undefined ..' */
unsigned char x = A[i], y = B[i];
diff |= x ^ y;
}
return( diff );
}
/*! The 64-bit default integrity check value (ICV) for KW mode. */
static const unsigned char NIST_KW_ICV1[] = {0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6};
/*! The 32-bit default integrity check value (ICV) for KWP mode. */
static const unsigned char NIST_KW_ICV2[] = {0xA6, 0x59, 0x59, 0xA6};
#ifndef GET_UINT32_BE
#define GET_UINT32_BE(n,b,i) \
do { \
(n) = ( (uint32_t) (b)[(i) ] << 24 ) \
| ( (uint32_t) (b)[(i) + 1] << 16 ) \
| ( (uint32_t) (b)[(i) + 2] << 8 ) \
| ( (uint32_t) (b)[(i) + 3] ); \
} while( 0 )
#endif
#ifndef PUT_UINT32_BE
#define PUT_UINT32_BE(n,b,i) \
do { \
(b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
(b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
(b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
(b)[(i) + 3] = (unsigned char) ( (n) ); \
} while( 0 )
#endif
/*
* Initialize context
*/
void mbedtls_nist_kw_init( mbedtls_nist_kw_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_nist_kw_context ) );
}
int mbedtls_nist_kw_setkey( mbedtls_nist_kw_context *ctx,
mbedtls_cipher_id_t cipher,
const unsigned char *key,
unsigned int keybits,
const int is_wrap )
{
int ret;
const mbedtls_cipher_info_t *cipher_info;
cipher_info = mbedtls_cipher_info_from_values( cipher,
keybits,
MBEDTLS_MODE_ECB );
if( cipher_info == NULL )
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
if( cipher_info->block_size != 16 )
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
/*
* SP 800-38F currently defines AES cipher as the only block cipher allowed:
* "For KW and KWP, the underlying block cipher shall be approved, and the
* block size shall be 128 bits. Currently, the AES block cipher, with key
* lengths of 128, 192, or 256 bits, is the only block cipher that fits
* this profile."
* Currently we don't support other 128 bit block ciphers for key wrapping,
* such as Camellia and Aria.
*/
if( cipher != MBEDTLS_CIPHER_ID_AES )
return( MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE );
mbedtls_cipher_free( &ctx->cipher_ctx );
if( ( ret = mbedtls_cipher_setup( &ctx->cipher_ctx, cipher_info ) ) != 0 )
return( ret );
if( ( ret = mbedtls_cipher_setkey( &ctx->cipher_ctx, key, keybits,
is_wrap ? MBEDTLS_ENCRYPT :
MBEDTLS_DECRYPT )
) != 0 )
{
return( ret );
}
return( 0 );
}
/*
* Free context
*/
void mbedtls_nist_kw_free( mbedtls_nist_kw_context *ctx )
{
mbedtls_cipher_free( &ctx->cipher_ctx );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_nist_kw_context ) );
}
/*
* Helper function for Xoring the uint64_t "t" with the encrypted A.
* Defined in NIST SP 800-38F section 6.1
*/
static void calc_a_xor_t( unsigned char A[KW_SEMIBLOCK_LENGTH], uint64_t t )
{
size_t i = 0;
for( i = 0; i < sizeof( t ); i++ )
{
A[i] ^= ( t >> ( ( sizeof( t ) - 1 - i ) * 8 ) ) & 0xff;
}
}
/*
* KW-AE as defined in SP 800-38F section 6.2
* KWP-AE as defined in SP 800-38F section 6.3
*/
int mbedtls_nist_kw_wrap( mbedtls_nist_kw_context *ctx,
mbedtls_nist_kw_mode_t mode,
const unsigned char *input, size_t in_len,
unsigned char *output, size_t *out_len, size_t out_size )
{
int ret = 0;
size_t semiblocks = 0;
size_t s;
size_t olen, padlen = 0;
uint64_t t = 0;
unsigned char outbuff[KW_SEMIBLOCK_LENGTH * 2];
unsigned char inbuff[KW_SEMIBLOCK_LENGTH * 2];
unsigned char *R2 = output + KW_SEMIBLOCK_LENGTH;
unsigned char *A = output;
*out_len = 0;
/*
* Generate the String to work on
*/
if( mode == MBEDTLS_KW_MODE_KW )
{
if( out_size < in_len + KW_SEMIBLOCK_LENGTH )
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
/*
* According to SP 800-38F Table 1, the plaintext length for KW
* must be between 2 to 2^54-1 semiblocks inclusive.
*/
if( in_len < 16 ||
#if SIZE_MAX > 0x1FFFFFFFFFFFFF8
in_len > 0x1FFFFFFFFFFFFF8 ||
#endif
in_len % KW_SEMIBLOCK_LENGTH != 0 )
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
memcpy( output, NIST_KW_ICV1, KW_SEMIBLOCK_LENGTH );
memmove( output + KW_SEMIBLOCK_LENGTH, input, in_len );
}
else
{
if( in_len % 8 != 0 )
{
padlen = ( 8 - ( in_len % 8 ) );
}
if( out_size < in_len + KW_SEMIBLOCK_LENGTH + padlen )
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
/*
* According to SP 800-38F Table 1, the plaintext length for KWP
* must be between 1 and 2^32-1 octets inclusive.
*/
if( in_len < 1
#if SIZE_MAX > 0xFFFFFFFF
|| in_len > 0xFFFFFFFF
#endif
)
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
memcpy( output, NIST_KW_ICV2, KW_SEMIBLOCK_LENGTH / 2 );
PUT_UINT32_BE( ( in_len & 0xffffffff ), output,
KW_SEMIBLOCK_LENGTH / 2 );
memcpy( output + KW_SEMIBLOCK_LENGTH, input, in_len );
memset( output + KW_SEMIBLOCK_LENGTH + in_len, 0, padlen );
}
semiblocks = ( ( in_len + padlen ) / KW_SEMIBLOCK_LENGTH ) + 1;
s = 6 * ( semiblocks - 1 );
if( mode == MBEDTLS_KW_MODE_KWP
&& in_len <= KW_SEMIBLOCK_LENGTH )
{
memcpy( inbuff, output, 16 );
ret = mbedtls_cipher_update( &ctx->cipher_ctx,
inbuff, 16, output, &olen );
if( ret != 0 )
goto cleanup;
}
else
{
/*
* Do the wrapping function W, as defined in RFC 3394 section 2.2.1
*/
if( semiblocks < MIN_SEMIBLOCKS_COUNT )
{
ret = MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA;
goto cleanup;
}
/* Calculate intermediate values */
for( t = 1; t <= s; t++ )
{
memcpy( inbuff, A, KW_SEMIBLOCK_LENGTH );
memcpy( inbuff + KW_SEMIBLOCK_LENGTH, R2, KW_SEMIBLOCK_LENGTH );
ret = mbedtls_cipher_update( &ctx->cipher_ctx,
inbuff, 16, outbuff, &olen );
if( ret != 0 )
goto cleanup;
memcpy( A, outbuff, KW_SEMIBLOCK_LENGTH );
calc_a_xor_t( A, t );
memcpy( R2, outbuff + KW_SEMIBLOCK_LENGTH, KW_SEMIBLOCK_LENGTH );
R2 += KW_SEMIBLOCK_LENGTH;
if( R2 >= output + ( semiblocks * KW_SEMIBLOCK_LENGTH ) )
R2 = output + KW_SEMIBLOCK_LENGTH;
}
}
*out_len = semiblocks * KW_SEMIBLOCK_LENGTH;
cleanup:
if( ret != 0)
{
memset( output, 0, semiblocks * KW_SEMIBLOCK_LENGTH );
}
mbedtls_platform_zeroize( inbuff, KW_SEMIBLOCK_LENGTH * 2 );
mbedtls_platform_zeroize( outbuff, KW_SEMIBLOCK_LENGTH * 2 );
return( ret );
}
/*
* W-1 function as defined in RFC 3394 section 2.2.2
* This function assumes the following:
* 1. Output buffer is at least of size ( semiblocks - 1 ) * KW_SEMIBLOCK_LENGTH.
* 2. The input buffer is of size semiblocks * KW_SEMIBLOCK_LENGTH.
* 3. Minimal number of semiblocks is 3.
* 4. A is a buffer to hold the first semiblock of the input buffer.
*/
static int unwrap( mbedtls_nist_kw_context *ctx,
const unsigned char *input, size_t semiblocks,
unsigned char A[KW_SEMIBLOCK_LENGTH],
unsigned char *output, size_t* out_len )
{
int ret = 0;
const size_t s = 6 * ( semiblocks - 1 );
size_t olen;
uint64_t t = 0;
unsigned char outbuff[KW_SEMIBLOCK_LENGTH * 2];
unsigned char inbuff[KW_SEMIBLOCK_LENGTH * 2];
unsigned char *R = output + ( semiblocks - 2 ) * KW_SEMIBLOCK_LENGTH;
*out_len = 0;
if( semiblocks < MIN_SEMIBLOCKS_COUNT )
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
memcpy( A, input, KW_SEMIBLOCK_LENGTH );
memmove( output, input + KW_SEMIBLOCK_LENGTH, ( semiblocks - 1 ) * KW_SEMIBLOCK_LENGTH );
/* Calculate intermediate values */
for( t = s; t >= 1; t-- )
{
calc_a_xor_t( A, t );
memcpy( inbuff, A, KW_SEMIBLOCK_LENGTH );
memcpy( inbuff + KW_SEMIBLOCK_LENGTH, R, KW_SEMIBLOCK_LENGTH );
ret = mbedtls_cipher_update( &ctx->cipher_ctx,
inbuff, 16, outbuff, &olen );
if( ret != 0 )
goto cleanup;
memcpy( A, outbuff, KW_SEMIBLOCK_LENGTH );
/* Set R as LSB64 of outbuff */
memcpy( R, outbuff + KW_SEMIBLOCK_LENGTH, KW_SEMIBLOCK_LENGTH );
if( R == output )
R = output + ( semiblocks - 2 ) * KW_SEMIBLOCK_LENGTH;
else
R -= KW_SEMIBLOCK_LENGTH;
}
*out_len = ( semiblocks - 1 ) * KW_SEMIBLOCK_LENGTH;
cleanup:
if( ret != 0)
memset( output, 0, ( semiblocks - 1 ) * KW_SEMIBLOCK_LENGTH );
mbedtls_platform_zeroize( inbuff, sizeof( inbuff ) );
mbedtls_platform_zeroize( outbuff, sizeof( outbuff ) );
return( ret );
}
/*
* KW-AD as defined in SP 800-38F section 6.2
* KWP-AD as defined in SP 800-38F section 6.3
*/
int mbedtls_nist_kw_unwrap( mbedtls_nist_kw_context *ctx,
mbedtls_nist_kw_mode_t mode,
const unsigned char *input, size_t in_len,
unsigned char *output, size_t *out_len, size_t out_size )
{
int ret = 0;
size_t i, olen;
unsigned char A[KW_SEMIBLOCK_LENGTH];
unsigned char diff, bad_padding = 0;
*out_len = 0;
if( out_size < in_len - KW_SEMIBLOCK_LENGTH )
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
if( mode == MBEDTLS_KW_MODE_KW )
{
/*
* According to SP 800-38F Table 1, the ciphertext length for KW
* must be between 3 to 2^54 semiblocks inclusive.
*/
if( in_len < 24 ||
#if SIZE_MAX > 0x200000000000000
in_len > 0x200000000000000 ||
#endif
in_len % KW_SEMIBLOCK_LENGTH != 0 )
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
ret = unwrap( ctx, input, in_len / KW_SEMIBLOCK_LENGTH,
A, output, out_len );
if( ret != 0 )
goto cleanup;
/* Check ICV in "constant-time" */
diff = mbedtls_nist_kw_safer_memcmp( NIST_KW_ICV1, A, KW_SEMIBLOCK_LENGTH );
if( diff != 0 )
{
ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED;
goto cleanup;
}
}
else if( mode == MBEDTLS_KW_MODE_KWP )
{
size_t padlen = 0;
uint32_t Plen;
/*
* According to SP 800-38F Table 1, the ciphertext length for KWP
* must be between 2 to 2^29 semiblocks inclusive.
*/
if( in_len < KW_SEMIBLOCK_LENGTH * 2 ||
#if SIZE_MAX > 0x100000000
in_len > 0x100000000 ||
#endif
in_len % KW_SEMIBLOCK_LENGTH != 0 )
{
return( MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA );
}
if( in_len == KW_SEMIBLOCK_LENGTH * 2 )
{
unsigned char outbuff[KW_SEMIBLOCK_LENGTH * 2];
ret = mbedtls_cipher_update( &ctx->cipher_ctx,
input, 16, outbuff, &olen );
if( ret != 0 )
goto cleanup;
memcpy( A, outbuff, KW_SEMIBLOCK_LENGTH );
memcpy( output, outbuff + KW_SEMIBLOCK_LENGTH, KW_SEMIBLOCK_LENGTH );
mbedtls_platform_zeroize( outbuff, sizeof( outbuff ) );
*out_len = KW_SEMIBLOCK_LENGTH;
}
else
{
/* in_len >= KW_SEMIBLOCK_LENGTH * 3 */
ret = unwrap( ctx, input, in_len / KW_SEMIBLOCK_LENGTH,
A, output, out_len );
if( ret != 0 )
goto cleanup;
}
/* Check ICV in "constant-time" */
diff = mbedtls_nist_kw_safer_memcmp( NIST_KW_ICV2, A, KW_SEMIBLOCK_LENGTH / 2 );
if( diff != 0 )
{
ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED;
}
GET_UINT32_BE( Plen, A, KW_SEMIBLOCK_LENGTH / 2 );
/*
* Plen is the length of the plaintext, when the input is valid.
* If Plen is larger than the plaintext and padding, padlen will be
* larger than 8, because of the type wrap around.
*/
padlen = in_len - KW_SEMIBLOCK_LENGTH - Plen;
if ( padlen > 7 )
{
padlen &= 7;
ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED;
}
/* Check padding in "constant-time" */
for( diff = 0, i = 0; i < KW_SEMIBLOCK_LENGTH; i++ )
{
if( i >= KW_SEMIBLOCK_LENGTH - padlen )
diff |= output[*out_len - KW_SEMIBLOCK_LENGTH + i];
else
bad_padding |= output[*out_len - KW_SEMIBLOCK_LENGTH + i];
}
if( diff != 0 )
{
ret = MBEDTLS_ERR_CIPHER_AUTH_FAILED;
}
if( ret != 0 )
{
goto cleanup;
}
memset( output + Plen, 0, padlen );
*out_len = Plen;
}
else
{
ret = MBEDTLS_ERR_CIPHER_FEATURE_UNAVAILABLE;
goto cleanup;
}
cleanup:
if( ret != 0 )
{
memset( output, 0, *out_len );
*out_len = 0;
}
mbedtls_platform_zeroize( &bad_padding, sizeof( bad_padding) );
mbedtls_platform_zeroize( &diff, sizeof( diff ) );
mbedtls_platform_zeroize( A, sizeof( A ) );
return( ret );
}
#endif /* !MBEDTLS_NIST_KW_ALT */
#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_AES_C)
#define KW_TESTS 3
/*
* Test vectors taken from NIST
* https://csrc.nist.gov/Projects/Cryptographic-Algorithm-Validation-Program/CAVP-TESTING-BLOCK-CIPHER-MODES#KW
*/
static const unsigned int key_len[KW_TESTS] = { 16, 24, 32 };
static const unsigned char kw_key[KW_TESTS][32] = {
{ 0x75, 0x75, 0xda, 0x3a, 0x93, 0x60, 0x7c, 0xc2,
0xbf, 0xd8, 0xce, 0xc7, 0xaa, 0xdf, 0xd9, 0xa6 },
{ 0x2d, 0x85, 0x26, 0x08, 0x1d, 0x02, 0xfb, 0x5b,
0x85, 0xf6, 0x9a, 0xc2, 0x86, 0xec, 0xd5, 0x7d,
0x40, 0xdf, 0x5d, 0xf3, 0x49, 0x47, 0x44, 0xd3 },
{ 0x11, 0x2a, 0xd4, 0x1b, 0x48, 0x56, 0xc7, 0x25,
0x4a, 0x98, 0x48, 0xd3, 0x0f, 0xdd, 0x78, 0x33,
0x5b, 0x03, 0x9a, 0x48, 0xa8, 0x96, 0x2c, 0x4d,
0x1c, 0xb7, 0x8e, 0xab, 0xd5, 0xda, 0xd7, 0x88 }
};
static const unsigned char kw_msg[KW_TESTS][40] = {
{ 0x42, 0x13, 0x6d, 0x3c, 0x38, 0x4a, 0x3e, 0xea,
0xc9, 0x5a, 0x06, 0x6f, 0xd2, 0x8f, 0xed, 0x3f },
{ 0x95, 0xc1, 0x1b, 0xf5, 0x35, 0x3a, 0xfe, 0xdb,
0x98, 0xfd, 0xd6, 0xc8, 0xca, 0x6f, 0xdb, 0x6d,
0xa5, 0x4b, 0x74, 0xb4, 0x99, 0x0f, 0xdc, 0x45,
0xc0, 0x9d, 0x15, 0x8f, 0x51, 0xce, 0x62, 0x9d,
0xe2, 0xaf, 0x26, 0xe3, 0x25, 0x0e, 0x6b, 0x4c },
{ 0x1b, 0x20, 0xbf, 0x19, 0x90, 0xb0, 0x65, 0xd7,
0x98, 0xe1, 0xb3, 0x22, 0x64, 0xad, 0x50, 0xa8,
0x74, 0x74, 0x92, 0xba, 0x09, 0xa0, 0x4d, 0xd1 }
};
static const size_t kw_msg_len[KW_TESTS] = { 16, 40, 24 };
static const size_t kw_out_len[KW_TESTS] = { 24, 48, 32 };
static const unsigned char kw_res[KW_TESTS][48] = {
{ 0x03, 0x1f, 0x6b, 0xd7, 0xe6, 0x1e, 0x64, 0x3d,
0xf6, 0x85, 0x94, 0x81, 0x6f, 0x64, 0xca, 0xa3,
0xf5, 0x6f, 0xab, 0xea, 0x25, 0x48, 0xf5, 0xfb },
{ 0x44, 0x3c, 0x6f, 0x15, 0x09, 0x83, 0x71, 0x91,
0x3e, 0x5c, 0x81, 0x4c, 0xa1, 0xa0, 0x42, 0xec,
0x68, 0x2f, 0x7b, 0x13, 0x6d, 0x24, 0x3a, 0x4d,
0x6c, 0x42, 0x6f, 0xc6, 0x97, 0x15, 0x63, 0xe8,
0xa1, 0x4a, 0x55, 0x8e, 0x09, 0x64, 0x16, 0x19,
0xbf, 0x03, 0xfc, 0xaf, 0x90, 0xb1, 0xfc, 0x2d },
{ 0xba, 0x8a, 0x25, 0x9a, 0x47, 0x1b, 0x78, 0x7d,
0xd5, 0xd5, 0x40, 0xec, 0x25, 0xd4, 0x3d, 0x87,
0x20, 0x0f, 0xda, 0xdc, 0x6d, 0x1f, 0x05, 0xd9,
0x16, 0x58, 0x4f, 0xa9, 0xf6, 0xcb, 0xf5, 0x12 }
};
static const unsigned char kwp_key[KW_TESTS][32] = {
{ 0x78, 0x65, 0xe2, 0x0f, 0x3c, 0x21, 0x65, 0x9a,
0xb4, 0x69, 0x0b, 0x62, 0x9c, 0xdf, 0x3c, 0xc4 },
{ 0xf5, 0xf8, 0x96, 0xa3, 0xbd, 0x2f, 0x4a, 0x98,
0x23, 0xef, 0x16, 0x2b, 0x00, 0xb8, 0x05, 0xd7,
0xde, 0x1e, 0xa4, 0x66, 0x26, 0x96, 0xa2, 0x58 },
{ 0x95, 0xda, 0x27, 0x00, 0xca, 0x6f, 0xd9, 0xa5,
0x25, 0x54, 0xee, 0x2a, 0x8d, 0xf1, 0x38, 0x6f,
0x5b, 0x94, 0xa1, 0xa6, 0x0e, 0xd8, 0xa4, 0xae,
0xf6, 0x0a, 0x8d, 0x61, 0xab, 0x5f, 0x22, 0x5a }
};
static const unsigned char kwp_msg[KW_TESTS][31] = {
{ 0xbd, 0x68, 0x43, 0xd4, 0x20, 0x37, 0x8d, 0xc8,
0x96 },
{ 0x6c, 0xcd, 0xd5, 0x85, 0x18, 0x40, 0x97, 0xeb,
0xd5, 0xc3, 0xaf, 0x3e, 0x47, 0xd0, 0x2c, 0x19,
0x14, 0x7b, 0x4d, 0x99, 0x5f, 0x96, 0x43, 0x66,
0x91, 0x56, 0x75, 0x8c, 0x13, 0x16, 0x8f },
{ 0xd1 }
};
static const size_t kwp_msg_len[KW_TESTS] = { 9, 31, 1 };
static const unsigned char kwp_res[KW_TESTS][48] = {
{ 0x41, 0xec, 0xa9, 0x56, 0xd4, 0xaa, 0x04, 0x7e,
0xb5, 0xcf, 0x4e, 0xfe, 0x65, 0x96, 0x61, 0xe7,
0x4d, 0xb6, 0xf8, 0xc5, 0x64, 0xe2, 0x35, 0x00 },
{ 0x4e, 0x9b, 0xc2, 0xbc, 0xbc, 0x6c, 0x1e, 0x13,
0xd3, 0x35, 0xbc, 0xc0, 0xf7, 0x73, 0x6a, 0x88,
0xfa, 0x87, 0x53, 0x66, 0x15, 0xbb, 0x8e, 0x63,
0x8b, 0xcc, 0x81, 0x66, 0x84, 0x68, 0x17, 0x90,
0x67, 0xcf, 0xa9, 0x8a, 0x9d, 0x0e, 0x33, 0x26 },
{ 0x06, 0xba, 0x7a, 0xe6, 0xf3, 0x24, 0x8c, 0xfd,
0xcf, 0x26, 0x75, 0x07, 0xfa, 0x00, 0x1b, 0xc4 }
};
static const size_t kwp_out_len[KW_TESTS] = { 24, 40, 16 };
int mbedtls_nist_kw_self_test( int verbose )
{
mbedtls_nist_kw_context ctx;
unsigned char out[48];
size_t olen;
int i;
int ret = 0;
mbedtls_nist_kw_init( &ctx );
for( i = 0; i < KW_TESTS; i++ )
{
if( verbose != 0 )
mbedtls_printf( " KW-AES-%u ", (unsigned int) key_len[i] * 8 );
ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES,
kw_key[i], key_len[i] * 8, 1 );
if( ret != 0 )
{
if( verbose != 0 )
mbedtls_printf( " KW: setup failed " );
goto end;
}
ret = mbedtls_nist_kw_wrap( &ctx, MBEDTLS_KW_MODE_KW, kw_msg[i],
kw_msg_len[i], out, &olen, sizeof( out ) );
if( ret != 0 || kw_out_len[i] != olen ||
memcmp( out, kw_res[i], kw_out_len[i] ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed. ");
ret = 1;
goto end;
}
if( ( ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES,
kw_key[i], key_len[i] * 8, 0 ) )
!= 0 )
{
if( verbose != 0 )
mbedtls_printf( " KW: setup failed ");
goto end;
}
ret = mbedtls_nist_kw_unwrap( &ctx, MBEDTLS_KW_MODE_KW,
out, olen, out, &olen, sizeof( out ) );
if( ret != 0 || olen != kw_msg_len[i] ||
memcmp( out, kw_msg[i], kw_msg_len[i] ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto end;
}
if( verbose != 0 )
mbedtls_printf( " passed\n" );
}
for( i = 0; i < KW_TESTS; i++ )
{
olen = sizeof( out );
if( verbose != 0 )
mbedtls_printf( " KWP-AES-%u ", (unsigned int) key_len[i] * 8 );
ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES, kwp_key[i],
key_len[i] * 8, 1 );
if( ret != 0 )
{
if( verbose != 0 )
mbedtls_printf( " KWP: setup failed " );
goto end;
}
ret = mbedtls_nist_kw_wrap( &ctx, MBEDTLS_KW_MODE_KWP, kwp_msg[i],
kwp_msg_len[i], out, &olen, sizeof( out ) );
if( ret != 0 || kwp_out_len[i] != olen ||
memcmp( out, kwp_res[i], kwp_out_len[i] ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed. ");
ret = 1;
goto end;
}
if( ( ret = mbedtls_nist_kw_setkey( &ctx, MBEDTLS_CIPHER_ID_AES,
kwp_key[i], key_len[i] * 8, 0 ) )
!= 0 )
{
if( verbose != 0 )
mbedtls_printf( " KWP: setup failed ");
goto end;
}
ret = mbedtls_nist_kw_unwrap( &ctx, MBEDTLS_KW_MODE_KWP, out,
olen, out, &olen, sizeof( out ) );
if( ret != 0 || olen != kwp_msg_len[i] ||
memcmp( out, kwp_msg[i], kwp_msg_len[i] ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed. ");
ret = 1;
goto end;
}
if( verbose != 0 )
mbedtls_printf( " passed\n" );
}
end:
mbedtls_nist_kw_free( &ctx );
if( verbose != 0 )
mbedtls_printf( "\n" );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST && MBEDTLS_AES_C */
#endif /* MBEDTLS_NIST_KW_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/nist_kw.c | C | apache-2.0 | 24,340 |
/**
* \file oid.c
*
* \brief Object Identifier (OID) database
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_OID_C)
#include "mbedtls/oid.h"
#include "mbedtls/rsa.h"
#include <stdio.h>
#include <string.h>
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#define mbedtls_snprintf snprintf
#endif
#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C)
#include "mbedtls/x509.h"
#endif
/*
* Macro to automatically add the size of #define'd OIDs
*/
#define ADD_LEN(s) s, MBEDTLS_OID_SIZE(s)
/*
* Macro to generate an internal function for oid_XXX_from_asn1() (used by
* the other functions)
*/
#define FN_OID_TYPED_FROM_ASN1( TYPE_T, NAME, LIST ) \
static const TYPE_T * oid_ ## NAME ## _from_asn1( const mbedtls_asn1_buf *oid ) \
{ \
const TYPE_T *p = LIST; \
const mbedtls_oid_descriptor_t *cur = (const mbedtls_oid_descriptor_t *) p; \
if( p == NULL || oid == NULL ) return( NULL ); \
while( cur->asn1 != NULL ) { \
if( cur->asn1_len == oid->len && \
memcmp( cur->asn1, oid->p, oid->len ) == 0 ) { \
return( p ); \
} \
p++; \
cur = (const mbedtls_oid_descriptor_t *) p; \
} \
return( NULL ); \
}
/*
* Macro to generate a function for retrieving a single attribute from the
* descriptor of an mbedtls_oid_descriptor_t wrapper.
*/
#define FN_OID_GET_DESCRIPTOR_ATTR1(FN_NAME, TYPE_T, TYPE_NAME, ATTR1_TYPE, ATTR1) \
int FN_NAME( const mbedtls_asn1_buf *oid, ATTR1_TYPE * ATTR1 ) \
{ \
const TYPE_T *data = oid_ ## TYPE_NAME ## _from_asn1( oid ); \
if( data == NULL ) return( MBEDTLS_ERR_OID_NOT_FOUND ); \
*ATTR1 = data->descriptor.ATTR1; \
return( 0 ); \
}
/*
* Macro to generate a function for retrieving a single attribute from an
* mbedtls_oid_descriptor_t wrapper.
*/
#define FN_OID_GET_ATTR1(FN_NAME, TYPE_T, TYPE_NAME, ATTR1_TYPE, ATTR1) \
int FN_NAME( const mbedtls_asn1_buf *oid, ATTR1_TYPE * ATTR1 ) \
{ \
const TYPE_T *data = oid_ ## TYPE_NAME ## _from_asn1( oid ); \
if( data == NULL ) return( MBEDTLS_ERR_OID_NOT_FOUND ); \
*ATTR1 = data->ATTR1; \
return( 0 ); \
}
/*
* Macro to generate a function for retrieving two attributes from an
* mbedtls_oid_descriptor_t wrapper.
*/
#define FN_OID_GET_ATTR2(FN_NAME, TYPE_T, TYPE_NAME, ATTR1_TYPE, ATTR1, \
ATTR2_TYPE, ATTR2) \
int FN_NAME( const mbedtls_asn1_buf *oid, ATTR1_TYPE * ATTR1, ATTR2_TYPE * ATTR2 ) \
{ \
const TYPE_T *data = oid_ ## TYPE_NAME ## _from_asn1( oid ); \
if( data == NULL ) return( MBEDTLS_ERR_OID_NOT_FOUND ); \
*ATTR1 = data->ATTR1; \
*ATTR2 = data->ATTR2; \
return( 0 ); \
}
/*
* Macro to generate a function for retrieving the OID based on a single
* attribute from a mbedtls_oid_descriptor_t wrapper.
*/
#define FN_OID_GET_OID_BY_ATTR1(FN_NAME, TYPE_T, LIST, ATTR1_TYPE, ATTR1) \
int FN_NAME( ATTR1_TYPE ATTR1, const char **oid, size_t *olen ) \
{ \
const TYPE_T *cur = LIST; \
while( cur->descriptor.asn1 != NULL ) { \
if( cur->ATTR1 == ATTR1 ) { \
*oid = cur->descriptor.asn1; \
*olen = cur->descriptor.asn1_len; \
return( 0 ); \
} \
cur++; \
} \
return( MBEDTLS_ERR_OID_NOT_FOUND ); \
}
/*
* Macro to generate a function for retrieving the OID based on two
* attributes from a mbedtls_oid_descriptor_t wrapper.
*/
#define FN_OID_GET_OID_BY_ATTR2(FN_NAME, TYPE_T, LIST, ATTR1_TYPE, ATTR1, \
ATTR2_TYPE, ATTR2) \
int FN_NAME( ATTR1_TYPE ATTR1, ATTR2_TYPE ATTR2, const char **oid , \
size_t *olen ) \
{ \
const TYPE_T *cur = LIST; \
while( cur->descriptor.asn1 != NULL ) { \
if( cur->ATTR1 == ATTR1 && cur->ATTR2 == ATTR2 ) { \
*oid = cur->descriptor.asn1; \
*olen = cur->descriptor.asn1_len; \
return( 0 ); \
} \
cur++; \
} \
return( MBEDTLS_ERR_OID_NOT_FOUND ); \
}
#if defined(MBEDTLS_X509_USE_C) || defined(MBEDTLS_X509_CREATE_C)
/*
* For X520 attribute types
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
const char *short_name;
} oid_x520_attr_t;
static const oid_x520_attr_t oid_x520_attr_type[] =
{
{
{ ADD_LEN( MBEDTLS_OID_AT_CN ), "id-at-commonName", "Common Name" },
"CN",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_COUNTRY ), "id-at-countryName", "Country" },
"C",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_LOCALITY ), "id-at-locality", "Locality" },
"L",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_STATE ), "id-at-state", "State" },
"ST",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_ORGANIZATION ),"id-at-organizationName", "Organization" },
"O",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_ORG_UNIT ), "id-at-organizationalUnitName", "Org Unit" },
"OU",
},
{
{ ADD_LEN( MBEDTLS_OID_PKCS9_EMAIL ), "emailAddress", "E-mail address" },
"emailAddress",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_SERIAL_NUMBER ),"id-at-serialNumber", "Serial number" },
"serialNumber",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_POSTAL_ADDRESS ),"id-at-postalAddress", "Postal address" },
"postalAddress",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_POSTAL_CODE ), "id-at-postalCode", "Postal code" },
"postalCode",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_SUR_NAME ), "id-at-surName", "Surname" },
"SN",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_GIVEN_NAME ), "id-at-givenName", "Given name" },
"GN",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_INITIALS ), "id-at-initials", "Initials" },
"initials",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_GENERATION_QUALIFIER ), "id-at-generationQualifier", "Generation qualifier" },
"generationQualifier",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_TITLE ), "id-at-title", "Title" },
"title",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_DN_QUALIFIER ),"id-at-dnQualifier", "Distinguished Name qualifier" },
"dnQualifier",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_PSEUDONYM ), "id-at-pseudonym", "Pseudonym" },
"pseudonym",
},
{
{ ADD_LEN( MBEDTLS_OID_DOMAIN_COMPONENT ), "id-domainComponent", "Domain component" },
"DC",
},
{
{ ADD_LEN( MBEDTLS_OID_AT_UNIQUE_IDENTIFIER ), "id-at-uniqueIdentifier", "Unique Identifier" },
"uniqueIdentifier",
},
{
{ NULL, 0, NULL, NULL },
NULL,
}
};
FN_OID_TYPED_FROM_ASN1(oid_x520_attr_t, x520_attr, oid_x520_attr_type)
FN_OID_GET_ATTR1(mbedtls_oid_get_attr_short_name, oid_x520_attr_t, x520_attr, const char *, short_name)
/*
* For X509 extensions
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
int ext_type;
} oid_x509_ext_t;
static const oid_x509_ext_t oid_x509_ext[] =
{
{
{ ADD_LEN( MBEDTLS_OID_BASIC_CONSTRAINTS ), "id-ce-basicConstraints", "Basic Constraints" },
MBEDTLS_X509_EXT_BASIC_CONSTRAINTS,
},
{
{ ADD_LEN( MBEDTLS_OID_KEY_USAGE ), "id-ce-keyUsage", "Key Usage" },
MBEDTLS_X509_EXT_KEY_USAGE,
},
{
{ ADD_LEN( MBEDTLS_OID_EXTENDED_KEY_USAGE ), "id-ce-extKeyUsage", "Extended Key Usage" },
MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE,
},
{
{ ADD_LEN( MBEDTLS_OID_SUBJECT_ALT_NAME ), "id-ce-subjectAltName", "Subject Alt Name" },
MBEDTLS_X509_EXT_SUBJECT_ALT_NAME,
},
{
{ ADD_LEN( MBEDTLS_OID_NS_CERT_TYPE ), "id-netscape-certtype", "Netscape Certificate Type" },
MBEDTLS_X509_EXT_NS_CERT_TYPE,
},
{
{ NULL, 0, NULL, NULL },
0,
},
};
FN_OID_TYPED_FROM_ASN1(oid_x509_ext_t, x509_ext, oid_x509_ext)
FN_OID_GET_ATTR1(mbedtls_oid_get_x509_ext_type, oid_x509_ext_t, x509_ext, int, ext_type)
static const mbedtls_oid_descriptor_t oid_ext_key_usage[] =
{
{ ADD_LEN( MBEDTLS_OID_SERVER_AUTH ), "id-kp-serverAuth", "TLS Web Server Authentication" },
{ ADD_LEN( MBEDTLS_OID_CLIENT_AUTH ), "id-kp-clientAuth", "TLS Web Client Authentication" },
{ ADD_LEN( MBEDTLS_OID_CODE_SIGNING ), "id-kp-codeSigning", "Code Signing" },
{ ADD_LEN( MBEDTLS_OID_EMAIL_PROTECTION ), "id-kp-emailProtection", "E-mail Protection" },
{ ADD_LEN( MBEDTLS_OID_TIME_STAMPING ), "id-kp-timeStamping", "Time Stamping" },
{ ADD_LEN( MBEDTLS_OID_OCSP_SIGNING ), "id-kp-OCSPSigning", "OCSP Signing" },
{ NULL, 0, NULL, NULL },
};
FN_OID_TYPED_FROM_ASN1(mbedtls_oid_descriptor_t, ext_key_usage, oid_ext_key_usage)
FN_OID_GET_ATTR1(mbedtls_oid_get_extended_key_usage, mbedtls_oid_descriptor_t, ext_key_usage, const char *, description)
#endif /* MBEDTLS_X509_USE_C || MBEDTLS_X509_CREATE_C */
#if defined(MBEDTLS_MD_C)
/*
* For SignatureAlgorithmIdentifier
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
mbedtls_md_type_t md_alg;
mbedtls_pk_type_t pk_alg;
} oid_sig_alg_t;
static const oid_sig_alg_t oid_sig_alg[] =
{
#if defined(MBEDTLS_RSA_C)
#if defined(MBEDTLS_MD2_C)
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_MD2 ), "md2WithRSAEncryption", "RSA with MD2" },
MBEDTLS_MD_MD2, MBEDTLS_PK_RSA,
},
#endif /* MBEDTLS_MD2_C */
#if defined(MBEDTLS_MD4_C)
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_MD4 ), "md4WithRSAEncryption", "RSA with MD4" },
MBEDTLS_MD_MD4, MBEDTLS_PK_RSA,
},
#endif /* MBEDTLS_MD4_C */
#if defined(MBEDTLS_MD5_C)
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_MD5 ), "md5WithRSAEncryption", "RSA with MD5" },
MBEDTLS_MD_MD5, MBEDTLS_PK_RSA,
},
#endif /* MBEDTLS_MD5_C */
#if defined(MBEDTLS_SHA1_C)
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_SHA1 ), "sha-1WithRSAEncryption", "RSA with SHA1" },
MBEDTLS_MD_SHA1, MBEDTLS_PK_RSA,
},
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_SHA224 ), "sha224WithRSAEncryption", "RSA with SHA-224" },
MBEDTLS_MD_SHA224, MBEDTLS_PK_RSA,
},
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_SHA256 ), "sha256WithRSAEncryption", "RSA with SHA-256" },
MBEDTLS_MD_SHA256, MBEDTLS_PK_RSA,
},
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_SHA384 ), "sha384WithRSAEncryption", "RSA with SHA-384" },
MBEDTLS_MD_SHA384, MBEDTLS_PK_RSA,
},
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_SHA512 ), "sha512WithRSAEncryption", "RSA with SHA-512" },
MBEDTLS_MD_SHA512, MBEDTLS_PK_RSA,
},
#endif /* MBEDTLS_SHA512_C */
#if defined(MBEDTLS_SHA1_C)
{
{ ADD_LEN( MBEDTLS_OID_RSA_SHA_OBS ), "sha-1WithRSAEncryption", "RSA with SHA1" },
MBEDTLS_MD_SHA1, MBEDTLS_PK_RSA,
},
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECDSA_C)
#if defined(MBEDTLS_SHA1_C)
{
{ ADD_LEN( MBEDTLS_OID_ECDSA_SHA1 ), "ecdsa-with-SHA1", "ECDSA with SHA1" },
MBEDTLS_MD_SHA1, MBEDTLS_PK_ECDSA,
},
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
{
{ ADD_LEN( MBEDTLS_OID_ECDSA_SHA224 ), "ecdsa-with-SHA224", "ECDSA with SHA224" },
MBEDTLS_MD_SHA224, MBEDTLS_PK_ECDSA,
},
{
{ ADD_LEN( MBEDTLS_OID_ECDSA_SHA256 ), "ecdsa-with-SHA256", "ECDSA with SHA256" },
MBEDTLS_MD_SHA256, MBEDTLS_PK_ECDSA,
},
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{
{ ADD_LEN( MBEDTLS_OID_ECDSA_SHA384 ), "ecdsa-with-SHA384", "ECDSA with SHA384" },
MBEDTLS_MD_SHA384, MBEDTLS_PK_ECDSA,
},
{
{ ADD_LEN( MBEDTLS_OID_ECDSA_SHA512 ), "ecdsa-with-SHA512", "ECDSA with SHA512" },
MBEDTLS_MD_SHA512, MBEDTLS_PK_ECDSA,
},
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_ECDSA_C */
#if defined(MBEDTLS_RSA_C)
{
{ ADD_LEN( MBEDTLS_OID_RSASSA_PSS ), "RSASSA-PSS", "RSASSA-PSS" },
MBEDTLS_MD_NONE, MBEDTLS_PK_RSASSA_PSS,
},
#endif /* MBEDTLS_RSA_C */
{
{ NULL, 0, NULL, NULL },
MBEDTLS_MD_NONE, MBEDTLS_PK_NONE,
},
};
FN_OID_TYPED_FROM_ASN1(oid_sig_alg_t, sig_alg, oid_sig_alg)
FN_OID_GET_DESCRIPTOR_ATTR1(mbedtls_oid_get_sig_alg_desc, oid_sig_alg_t, sig_alg, const char *, description)
FN_OID_GET_ATTR2(mbedtls_oid_get_sig_alg, oid_sig_alg_t, sig_alg, mbedtls_md_type_t, md_alg, mbedtls_pk_type_t, pk_alg)
FN_OID_GET_OID_BY_ATTR2(mbedtls_oid_get_oid_by_sig_alg, oid_sig_alg_t, oid_sig_alg, mbedtls_pk_type_t, pk_alg, mbedtls_md_type_t, md_alg)
#endif /* MBEDTLS_MD_C */
/*
* For PublicKeyInfo (PKCS1, RFC 5480)
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
mbedtls_pk_type_t pk_alg;
} oid_pk_alg_t;
static const oid_pk_alg_t oid_pk_alg[] =
{
{
{ ADD_LEN( MBEDTLS_OID_PKCS1_RSA ), "rsaEncryption", "RSA" },
MBEDTLS_PK_RSA,
},
{
{ ADD_LEN( MBEDTLS_OID_EC_ALG_UNRESTRICTED ), "id-ecPublicKey", "Generic EC key" },
MBEDTLS_PK_ECKEY,
},
{
{ ADD_LEN( MBEDTLS_OID_EC_ALG_ECDH ), "id-ecDH", "EC key for ECDH" },
MBEDTLS_PK_ECKEY_DH,
},
{
{ NULL, 0, NULL, NULL },
MBEDTLS_PK_NONE,
},
};
FN_OID_TYPED_FROM_ASN1(oid_pk_alg_t, pk_alg, oid_pk_alg)
FN_OID_GET_ATTR1(mbedtls_oid_get_pk_alg, oid_pk_alg_t, pk_alg, mbedtls_pk_type_t, pk_alg)
FN_OID_GET_OID_BY_ATTR1(mbedtls_oid_get_oid_by_pk_alg, oid_pk_alg_t, oid_pk_alg, mbedtls_pk_type_t, pk_alg)
#if defined(MBEDTLS_ECP_C)
/*
* For namedCurve (RFC 5480)
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
mbedtls_ecp_group_id grp_id;
} oid_ecp_grp_t;
static const oid_ecp_grp_t oid_ecp_grp[] =
{
#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP192R1 ), "secp192r1", "secp192r1" },
MBEDTLS_ECP_DP_SECP192R1,
},
#endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP224R1 ), "secp224r1", "secp224r1" },
MBEDTLS_ECP_DP_SECP224R1,
},
#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP256R1 ), "secp256r1", "secp256r1" },
MBEDTLS_ECP_DP_SECP256R1,
},
#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP384R1 ), "secp384r1", "secp384r1" },
MBEDTLS_ECP_DP_SECP384R1,
},
#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP521R1 ), "secp521r1", "secp521r1" },
MBEDTLS_ECP_DP_SECP521R1,
},
#endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP192K1 ), "secp192k1", "secp192k1" },
MBEDTLS_ECP_DP_SECP192K1,
},
#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP224K1 ), "secp224k1", "secp224k1" },
MBEDTLS_ECP_DP_SECP224K1,
},
#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_SECP256K1 ), "secp256k1", "secp256k1" },
MBEDTLS_ECP_DP_SECP256K1,
},
#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_BP256R1 ), "brainpoolP256r1","brainpool256r1" },
MBEDTLS_ECP_DP_BP256R1,
},
#endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_BP384R1 ), "brainpoolP384r1","brainpool384r1" },
MBEDTLS_ECP_DP_BP384R1,
},
#endif /* MBEDTLS_ECP_DP_BP384R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
{
{ ADD_LEN( MBEDTLS_OID_EC_GRP_BP512R1 ), "brainpoolP512r1","brainpool512r1" },
MBEDTLS_ECP_DP_BP512R1,
},
#endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */
{
{ NULL, 0, NULL, NULL },
MBEDTLS_ECP_DP_NONE,
},
};
FN_OID_TYPED_FROM_ASN1(oid_ecp_grp_t, grp_id, oid_ecp_grp)
FN_OID_GET_ATTR1(mbedtls_oid_get_ec_grp, oid_ecp_grp_t, grp_id, mbedtls_ecp_group_id, grp_id)
FN_OID_GET_OID_BY_ATTR1(mbedtls_oid_get_oid_by_ec_grp, oid_ecp_grp_t, oid_ecp_grp, mbedtls_ecp_group_id, grp_id)
#endif /* MBEDTLS_ECP_C */
#if defined(MBEDTLS_CIPHER_C)
/*
* For PKCS#5 PBES2 encryption algorithm
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
mbedtls_cipher_type_t cipher_alg;
} oid_cipher_alg_t;
static const oid_cipher_alg_t oid_cipher_alg[] =
{
{
{ ADD_LEN( MBEDTLS_OID_DES_CBC ), "desCBC", "DES-CBC" },
MBEDTLS_CIPHER_DES_CBC,
},
{
{ ADD_LEN( MBEDTLS_OID_DES_EDE3_CBC ), "des-ede3-cbc", "DES-EDE3-CBC" },
MBEDTLS_CIPHER_DES_EDE3_CBC,
},
{
{ NULL, 0, NULL, NULL },
MBEDTLS_CIPHER_NONE,
},
};
FN_OID_TYPED_FROM_ASN1(oid_cipher_alg_t, cipher_alg, oid_cipher_alg)
FN_OID_GET_ATTR1(mbedtls_oid_get_cipher_alg, oid_cipher_alg_t, cipher_alg, mbedtls_cipher_type_t, cipher_alg)
#endif /* MBEDTLS_CIPHER_C */
#if defined(MBEDTLS_MD_C)
/*
* For digestAlgorithm
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
mbedtls_md_type_t md_alg;
} oid_md_alg_t;
static const oid_md_alg_t oid_md_alg[] =
{
#if defined(MBEDTLS_MD2_C)
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_MD2 ), "id-md2", "MD2" },
MBEDTLS_MD_MD2,
},
#endif /* MBEDTLS_MD2_C */
#if defined(MBEDTLS_MD4_C)
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_MD4 ), "id-md4", "MD4" },
MBEDTLS_MD_MD4,
},
#endif /* MBEDTLS_MD4_C */
#if defined(MBEDTLS_MD5_C)
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_MD5 ), "id-md5", "MD5" },
MBEDTLS_MD_MD5,
},
#endif /* MBEDTLS_MD5_C */
#if defined(MBEDTLS_SHA1_C)
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_SHA1 ), "id-sha1", "SHA-1" },
MBEDTLS_MD_SHA1,
},
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_SHA224 ), "id-sha224", "SHA-224" },
MBEDTLS_MD_SHA224,
},
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_SHA256 ), "id-sha256", "SHA-256" },
MBEDTLS_MD_SHA256,
},
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_SHA384 ), "id-sha384", "SHA-384" },
MBEDTLS_MD_SHA384,
},
{
{ ADD_LEN( MBEDTLS_OID_DIGEST_ALG_SHA512 ), "id-sha512", "SHA-512" },
MBEDTLS_MD_SHA512,
},
#endif /* MBEDTLS_SHA512_C */
{
{ NULL, 0, NULL, NULL },
MBEDTLS_MD_NONE,
},
};
FN_OID_TYPED_FROM_ASN1(oid_md_alg_t, md_alg, oid_md_alg)
FN_OID_GET_ATTR1(mbedtls_oid_get_md_alg, oid_md_alg_t, md_alg, mbedtls_md_type_t, md_alg)
FN_OID_GET_OID_BY_ATTR1(mbedtls_oid_get_oid_by_md, oid_md_alg_t, oid_md_alg, mbedtls_md_type_t, md_alg)
/*
* For HMAC digestAlgorithm
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
mbedtls_md_type_t md_hmac;
} oid_md_hmac_t;
static const oid_md_hmac_t oid_md_hmac[] =
{
#if defined(MBEDTLS_SHA1_C)
{
{ ADD_LEN( MBEDTLS_OID_HMAC_SHA1 ), "hmacSHA1", "HMAC-SHA-1" },
MBEDTLS_MD_SHA1,
},
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
{
{ ADD_LEN( MBEDTLS_OID_HMAC_SHA224 ), "hmacSHA224", "HMAC-SHA-224" },
MBEDTLS_MD_SHA224,
},
{
{ ADD_LEN( MBEDTLS_OID_HMAC_SHA256 ), "hmacSHA256", "HMAC-SHA-256" },
MBEDTLS_MD_SHA256,
},
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{
{ ADD_LEN( MBEDTLS_OID_HMAC_SHA384 ), "hmacSHA384", "HMAC-SHA-384" },
MBEDTLS_MD_SHA384,
},
{
{ ADD_LEN( MBEDTLS_OID_HMAC_SHA512 ), "hmacSHA512", "HMAC-SHA-512" },
MBEDTLS_MD_SHA512,
},
#endif /* MBEDTLS_SHA512_C */
{
{ NULL, 0, NULL, NULL },
MBEDTLS_MD_NONE,
},
};
FN_OID_TYPED_FROM_ASN1(oid_md_hmac_t, md_hmac, oid_md_hmac)
FN_OID_GET_ATTR1(mbedtls_oid_get_md_hmac, oid_md_hmac_t, md_hmac, mbedtls_md_type_t, md_hmac)
#endif /* MBEDTLS_MD_C */
#if defined(MBEDTLS_PKCS12_C)
/*
* For PKCS#12 PBEs
*/
typedef struct {
mbedtls_oid_descriptor_t descriptor;
mbedtls_md_type_t md_alg;
mbedtls_cipher_type_t cipher_alg;
} oid_pkcs12_pbe_alg_t;
static const oid_pkcs12_pbe_alg_t oid_pkcs12_pbe_alg[] =
{
{
{ ADD_LEN( MBEDTLS_OID_PKCS12_PBE_SHA1_DES3_EDE_CBC ), "pbeWithSHAAnd3-KeyTripleDES-CBC", "PBE with SHA1 and 3-Key 3DES" },
MBEDTLS_MD_SHA1, MBEDTLS_CIPHER_DES_EDE3_CBC,
},
{
{ ADD_LEN( MBEDTLS_OID_PKCS12_PBE_SHA1_DES2_EDE_CBC ), "pbeWithSHAAnd2-KeyTripleDES-CBC", "PBE with SHA1 and 2-Key 3DES" },
MBEDTLS_MD_SHA1, MBEDTLS_CIPHER_DES_EDE_CBC,
},
{
{ NULL, 0, NULL, NULL },
MBEDTLS_MD_NONE, MBEDTLS_CIPHER_NONE,
},
};
FN_OID_TYPED_FROM_ASN1(oid_pkcs12_pbe_alg_t, pkcs12_pbe_alg, oid_pkcs12_pbe_alg)
FN_OID_GET_ATTR2(mbedtls_oid_get_pkcs12_pbe_alg, oid_pkcs12_pbe_alg_t, pkcs12_pbe_alg, mbedtls_md_type_t, md_alg, mbedtls_cipher_type_t, cipher_alg)
#endif /* MBEDTLS_PKCS12_C */
#define OID_SAFE_SNPRINTF \
do { \
if( ret < 0 || (size_t) ret >= n ) \
return( MBEDTLS_ERR_OID_BUF_TOO_SMALL ); \
\
n -= (size_t) ret; \
p += (size_t) ret; \
} while( 0 )
/* Return the x.y.z.... style numeric string for the given OID */
int mbedtls_oid_get_numeric_string( char *buf, size_t size,
const mbedtls_asn1_buf *oid )
{
int ret;
size_t i, n;
unsigned int value;
char *p;
p = buf;
n = size;
/* First byte contains first two dots */
if( oid->len > 0 )
{
ret = mbedtls_snprintf( p, n, "%d.%d", oid->p[0] / 40, oid->p[0] % 40 );
OID_SAFE_SNPRINTF;
}
value = 0;
for( i = 1; i < oid->len; i++ )
{
/* Prevent overflow in value. */
if( ( ( value << 7 ) >> 7 ) != value )
return( MBEDTLS_ERR_OID_BUF_TOO_SMALL );
value <<= 7;
value += oid->p[i] & 0x7F;
if( !( oid->p[i] & 0x80 ) )
{
/* Last byte */
ret = mbedtls_snprintf( p, n, ".%d", value );
OID_SAFE_SNPRINTF;
value = 0;
}
}
return( (int) ( size - n ) );
}
#endif /* MBEDTLS_OID_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/oid.c | C | apache-2.0 | 26,682 |
/*
* VIA PadLock support functions
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* This implementation is based on the VIA PadLock Programming Guide:
*
* http://www.via.com.tw/en/downloads/whitepapers/initiatives/padlock/
* programming_guide.pdf
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PADLOCK_C)
#include "mbedtls/padlock.h"
#include <string.h>
#ifndef asm
#define asm __asm
#endif
#if defined(MBEDTLS_HAVE_X86)
/*
* PadLock detection routine
*/
int mbedtls_padlock_has_support( int feature )
{
static int flags = -1;
int ebx = 0, edx = 0;
if( flags == -1 )
{
asm( "movl %%ebx, %0 \n\t"
"movl $0xC0000000, %%eax \n\t"
"cpuid \n\t"
"cmpl $0xC0000001, %%eax \n\t"
"movl $0, %%edx \n\t"
"jb unsupported \n\t"
"movl $0xC0000001, %%eax \n\t"
"cpuid \n\t"
"unsupported: \n\t"
"movl %%edx, %1 \n\t"
"movl %2, %%ebx \n\t"
: "=m" (ebx), "=m" (edx)
: "m" (ebx)
: "eax", "ecx", "edx" );
flags = edx;
}
return( flags & feature );
}
/*
* PadLock AES-ECB block en(de)cryption
*/
int mbedtls_padlock_xcryptecb( mbedtls_aes_context *ctx,
int mode,
const unsigned char input[16],
unsigned char output[16] )
{
int ebx = 0;
uint32_t *rk;
uint32_t *blk;
uint32_t *ctrl;
unsigned char buf[256];
rk = ctx->rk;
blk = MBEDTLS_PADLOCK_ALIGN16( buf );
memcpy( blk, input, 16 );
ctrl = blk + 4;
*ctrl = 0x80 | ctx->nr | ( ( ctx->nr + ( mode^1 ) - 10 ) << 9 );
asm( "pushfl \n\t"
"popfl \n\t"
"movl %%ebx, %0 \n\t"
"movl $1, %%ecx \n\t"
"movl %2, %%edx \n\t"
"movl %3, %%ebx \n\t"
"movl %4, %%esi \n\t"
"movl %4, %%edi \n\t"
".byte 0xf3,0x0f,0xa7,0xc8 \n\t"
"movl %1, %%ebx \n\t"
: "=m" (ebx)
: "m" (ebx), "m" (ctrl), "m" (rk), "m" (blk)
: "memory", "ecx", "edx", "esi", "edi" );
memcpy( output, blk, 16 );
return( 0 );
}
/*
* PadLock AES-CBC buffer en(de)cryption
*/
int mbedtls_padlock_xcryptcbc( mbedtls_aes_context *ctx,
int mode,
size_t length,
unsigned char iv[16],
const unsigned char *input,
unsigned char *output )
{
int ebx = 0;
size_t count;
uint32_t *rk;
uint32_t *iw;
uint32_t *ctrl;
unsigned char buf[256];
if( ( (long) input & 15 ) != 0 ||
( (long) output & 15 ) != 0 )
return( MBEDTLS_ERR_PADLOCK_DATA_MISALIGNED );
rk = ctx->rk;
iw = MBEDTLS_PADLOCK_ALIGN16( buf );
memcpy( iw, iv, 16 );
ctrl = iw + 4;
*ctrl = 0x80 | ctx->nr | ( ( ctx->nr + ( mode ^ 1 ) - 10 ) << 9 );
count = ( length + 15 ) >> 4;
asm( "pushfl \n\t"
"popfl \n\t"
"movl %%ebx, %0 \n\t"
"movl %2, %%ecx \n\t"
"movl %3, %%edx \n\t"
"movl %4, %%ebx \n\t"
"movl %5, %%esi \n\t"
"movl %6, %%edi \n\t"
"movl %7, %%eax \n\t"
".byte 0xf3,0x0f,0xa7,0xd0 \n\t"
"movl %1, %%ebx \n\t"
: "=m" (ebx)
: "m" (ebx), "m" (count), "m" (ctrl),
"m" (rk), "m" (input), "m" (output), "m" (iw)
: "memory", "eax", "ecx", "edx", "esi", "edi" );
memcpy( iv, iw, 16 );
return( 0 );
}
#endif /* MBEDTLS_HAVE_X86 */
#endif /* MBEDTLS_PADLOCK_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/padlock.c | C | apache-2.0 | 4,804 |
/*
* Privacy Enhanced Mail (PEM) decoding
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PEM_PARSE_C) || defined(MBEDTLS_PEM_WRITE_C)
#include "mbedtls/pem.h"
#include "mbedtls/base64.h"
#include "mbedtls/des.h"
#include "mbedtls/aes.h"
#include "mbedtls/md5.h"
#include "mbedtls/cipher.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#if defined(MBEDTLS_PEM_PARSE_C)
void mbedtls_pem_init( mbedtls_pem_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_pem_context ) );
}
#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \
( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
/*
* Read a 16-byte hex string and convert it to binary
*/
static int pem_get_iv( const unsigned char *s, unsigned char *iv,
size_t iv_len )
{
size_t i, j, k;
memset( iv, 0, iv_len );
for( i = 0; i < iv_len * 2; i++, s++ )
{
if( *s >= '0' && *s <= '9' ) j = *s - '0'; else
if( *s >= 'A' && *s <= 'F' ) j = *s - '7'; else
if( *s >= 'a' && *s <= 'f' ) j = *s - 'W'; else
return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
k = ( ( i & 1 ) != 0 ) ? j : j << 4;
iv[i >> 1] = (unsigned char)( iv[i >> 1] | k );
}
return( 0 );
}
static int pem_pbkdf1( unsigned char *key, size_t keylen,
unsigned char *iv,
const unsigned char *pwd, size_t pwdlen )
{
mbedtls_md5_context md5_ctx;
unsigned char md5sum[16];
size_t use_len;
int ret;
mbedtls_md5_init( &md5_ctx );
/*
* key[ 0..15] = MD5(pwd || IV)
*/
if( ( ret = mbedtls_md5_starts_ret( &md5_ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_update_ret( &md5_ctx, pwd, pwdlen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_update_ret( &md5_ctx, iv, 8 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_finish_ret( &md5_ctx, md5sum ) ) != 0 )
goto exit;
if( keylen <= 16 )
{
memcpy( key, md5sum, keylen );
goto exit;
}
memcpy( key, md5sum, 16 );
/*
* key[16..23] = MD5(key[ 0..15] || pwd || IV])
*/
if( ( ret = mbedtls_md5_starts_ret( &md5_ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_update_ret( &md5_ctx, md5sum, 16 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_update_ret( &md5_ctx, pwd, pwdlen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_update_ret( &md5_ctx, iv, 8 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_finish_ret( &md5_ctx, md5sum ) ) != 0 )
goto exit;
use_len = 16;
if( keylen < 32 )
use_len = keylen - 16;
memcpy( key + 16, md5sum, use_len );
exit:
mbedtls_md5_free( &md5_ctx );
mbedtls_platform_zeroize( md5sum, 16 );
return( ret );
}
#if defined(MBEDTLS_DES_C)
/*
* Decrypt with DES-CBC, using PBKDF1 for key derivation
*/
static int pem_des_decrypt( unsigned char des_iv[8],
unsigned char *buf, size_t buflen,
const unsigned char *pwd, size_t pwdlen )
{
mbedtls_des_context des_ctx;
unsigned char des_key[8];
int ret;
mbedtls_des_init( &des_ctx );
if( ( ret = pem_pbkdf1( des_key, 8, des_iv, pwd, pwdlen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_des_setkey_dec( &des_ctx, des_key ) ) != 0 )
goto exit;
ret = mbedtls_des_crypt_cbc( &des_ctx, MBEDTLS_DES_DECRYPT, buflen,
des_iv, buf, buf );
exit:
mbedtls_des_free( &des_ctx );
mbedtls_platform_zeroize( des_key, 8 );
return( ret );
}
/*
* Decrypt with 3DES-CBC, using PBKDF1 for key derivation
*/
static int pem_des3_decrypt( unsigned char des3_iv[8],
unsigned char *buf, size_t buflen,
const unsigned char *pwd, size_t pwdlen )
{
mbedtls_des3_context des3_ctx;
unsigned char des3_key[24];
int ret;
mbedtls_des3_init( &des3_ctx );
if( ( ret = pem_pbkdf1( des3_key, 24, des3_iv, pwd, pwdlen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_des3_set3key_dec( &des3_ctx, des3_key ) ) != 0 )
goto exit;
ret = mbedtls_des3_crypt_cbc( &des3_ctx, MBEDTLS_DES_DECRYPT, buflen,
des3_iv, buf, buf );
exit:
mbedtls_des3_free( &des3_ctx );
mbedtls_platform_zeroize( des3_key, 24 );
return( ret );
}
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_AES_C)
/*
* Decrypt with AES-XXX-CBC, using PBKDF1 for key derivation
*/
static int pem_aes_decrypt( unsigned char aes_iv[16], unsigned int keylen,
unsigned char *buf, size_t buflen,
const unsigned char *pwd, size_t pwdlen )
{
mbedtls_aes_context aes_ctx;
unsigned char aes_key[32];
int ret;
mbedtls_aes_init( &aes_ctx );
if( ( ret = pem_pbkdf1( aes_key, keylen, aes_iv, pwd, pwdlen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_aes_setkey_dec( &aes_ctx, aes_key, keylen * 8 ) ) != 0 )
goto exit;
ret = mbedtls_aes_crypt_cbc( &aes_ctx, MBEDTLS_AES_DECRYPT, buflen,
aes_iv, buf, buf );
exit:
mbedtls_aes_free( &aes_ctx );
mbedtls_platform_zeroize( aes_key, keylen );
return( ret );
}
#endif /* MBEDTLS_AES_C */
#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
int mbedtls_pem_read_buffer( mbedtls_pem_context *ctx, const char *header, const char *footer,
const unsigned char *data, const unsigned char *pwd,
size_t pwdlen, size_t *use_len )
{
int ret, enc;
size_t len;
unsigned char *buf;
const unsigned char *s1, *s2, *end;
#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \
( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
unsigned char pem_iv[16];
mbedtls_cipher_type_t enc_alg = MBEDTLS_CIPHER_NONE;
#else
((void) pwd);
((void) pwdlen);
#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
if( ctx == NULL )
return( MBEDTLS_ERR_PEM_BAD_INPUT_DATA );
s1 = (unsigned char *) strstr( (const char *) data, header );
if( s1 == NULL )
return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
s2 = (unsigned char *) strstr( (const char *) data, footer );
if( s2 == NULL || s2 <= s1 )
return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
s1 += strlen( header );
if( *s1 == ' ' ) s1++;
if( *s1 == '\r' ) s1++;
if( *s1 == '\n' ) s1++;
else return( MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT );
end = s2;
end += strlen( footer );
if( *end == ' ' ) end++;
if( *end == '\r' ) end++;
if( *end == '\n' ) end++;
*use_len = end - data;
enc = 0;
if( s2 - s1 >= 22 && memcmp( s1, "Proc-Type: 4,ENCRYPTED", 22 ) == 0 )
{
#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \
( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
enc++;
s1 += 22;
if( *s1 == '\r' ) s1++;
if( *s1 == '\n' ) s1++;
else return( MBEDTLS_ERR_PEM_INVALID_DATA );
#if defined(MBEDTLS_DES_C)
if( s2 - s1 >= 23 && memcmp( s1, "DEK-Info: DES-EDE3-CBC,", 23 ) == 0 )
{
enc_alg = MBEDTLS_CIPHER_DES_EDE3_CBC;
s1 += 23;
if( s2 - s1 < 16 || pem_get_iv( s1, pem_iv, 8 ) != 0 )
return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
s1 += 16;
}
else if( s2 - s1 >= 18 && memcmp( s1, "DEK-Info: DES-CBC,", 18 ) == 0 )
{
enc_alg = MBEDTLS_CIPHER_DES_CBC;
s1 += 18;
if( s2 - s1 < 16 || pem_get_iv( s1, pem_iv, 8) != 0 )
return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
s1 += 16;
}
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_AES_C)
if( s2 - s1 >= 14 && memcmp( s1, "DEK-Info: AES-", 14 ) == 0 )
{
if( s2 - s1 < 22 )
return( MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG );
else if( memcmp( s1, "DEK-Info: AES-128-CBC,", 22 ) == 0 )
enc_alg = MBEDTLS_CIPHER_AES_128_CBC;
else if( memcmp( s1, "DEK-Info: AES-192-CBC,", 22 ) == 0 )
enc_alg = MBEDTLS_CIPHER_AES_192_CBC;
else if( memcmp( s1, "DEK-Info: AES-256-CBC,", 22 ) == 0 )
enc_alg = MBEDTLS_CIPHER_AES_256_CBC;
else
return( MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG );
s1 += 22;
if( s2 - s1 < 32 || pem_get_iv( s1, pem_iv, 16 ) != 0 )
return( MBEDTLS_ERR_PEM_INVALID_ENC_IV );
s1 += 32;
}
#endif /* MBEDTLS_AES_C */
if( enc_alg == MBEDTLS_CIPHER_NONE )
return( MBEDTLS_ERR_PEM_UNKNOWN_ENC_ALG );
if( *s1 == '\r' ) s1++;
if( *s1 == '\n' ) s1++;
else return( MBEDTLS_ERR_PEM_INVALID_DATA );
#else
return( MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE );
#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
}
if( s1 >= s2 )
return( MBEDTLS_ERR_PEM_INVALID_DATA );
ret = mbedtls_base64_decode( NULL, 0, &len, s1, s2 - s1 );
if( ret == MBEDTLS_ERR_BASE64_INVALID_CHARACTER )
return( MBEDTLS_ERR_PEM_INVALID_DATA + ret );
if( ( buf = mbedtls_calloc( 1, len ) ) == NULL )
return( MBEDTLS_ERR_PEM_ALLOC_FAILED );
if( ( ret = mbedtls_base64_decode( buf, len, &len, s1, s2 - s1 ) ) != 0 )
{
mbedtls_platform_zeroize( buf, len );
mbedtls_free( buf );
return( MBEDTLS_ERR_PEM_INVALID_DATA + ret );
}
if( enc != 0 )
{
#if defined(MBEDTLS_MD5_C) && defined(MBEDTLS_CIPHER_MODE_CBC) && \
( defined(MBEDTLS_DES_C) || defined(MBEDTLS_AES_C) )
if( pwd == NULL )
{
mbedtls_platform_zeroize( buf, len );
mbedtls_free( buf );
return( MBEDTLS_ERR_PEM_PASSWORD_REQUIRED );
}
ret = 0;
#if defined(MBEDTLS_DES_C)
if( enc_alg == MBEDTLS_CIPHER_DES_EDE3_CBC )
ret = pem_des3_decrypt( pem_iv, buf, len, pwd, pwdlen );
else if( enc_alg == MBEDTLS_CIPHER_DES_CBC )
ret = pem_des_decrypt( pem_iv, buf, len, pwd, pwdlen );
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_AES_C)
if( enc_alg == MBEDTLS_CIPHER_AES_128_CBC )
ret = pem_aes_decrypt( pem_iv, 16, buf, len, pwd, pwdlen );
else if( enc_alg == MBEDTLS_CIPHER_AES_192_CBC )
ret = pem_aes_decrypt( pem_iv, 24, buf, len, pwd, pwdlen );
else if( enc_alg == MBEDTLS_CIPHER_AES_256_CBC )
ret = pem_aes_decrypt( pem_iv, 32, buf, len, pwd, pwdlen );
#endif /* MBEDTLS_AES_C */
if( ret != 0 )
{
mbedtls_free( buf );
return( ret );
}
/*
* The result will be ASN.1 starting with a SEQUENCE tag, with 1 to 3
* length bytes (allow 4 to be sure) in all known use cases.
*
* Use that as a heuristic to try to detect password mismatches.
*/
if( len <= 2 || buf[0] != 0x30 || buf[1] > 0x83 )
{
mbedtls_platform_zeroize( buf, len );
mbedtls_free( buf );
return( MBEDTLS_ERR_PEM_PASSWORD_MISMATCH );
}
#else
mbedtls_platform_zeroize( buf, len );
mbedtls_free( buf );
return( MBEDTLS_ERR_PEM_FEATURE_UNAVAILABLE );
#endif /* MBEDTLS_MD5_C && MBEDTLS_CIPHER_MODE_CBC &&
( MBEDTLS_AES_C || MBEDTLS_DES_C ) */
}
ctx->buf = buf;
ctx->buflen = len;
return( 0 );
}
void mbedtls_pem_free( mbedtls_pem_context *ctx )
{
if ( ctx->buf != NULL )
{
mbedtls_platform_zeroize( ctx->buf, ctx->buflen );
mbedtls_free( ctx->buf );
}
mbedtls_free( ctx->info );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_pem_context ) );
}
#endif /* MBEDTLS_PEM_PARSE_C */
#if defined(MBEDTLS_PEM_WRITE_C)
int mbedtls_pem_write_buffer( const char *header, const char *footer,
const unsigned char *der_data, size_t der_len,
unsigned char *buf, size_t buf_len, size_t *olen )
{
int ret;
unsigned char *encode_buf = NULL, *c, *p = buf;
size_t len = 0, use_len, add_len = 0;
mbedtls_base64_encode( NULL, 0, &use_len, der_data, der_len );
add_len = strlen( header ) + strlen( footer ) + ( use_len / 64 ) + 1;
if( use_len + add_len > buf_len )
{
*olen = use_len + add_len;
return( MBEDTLS_ERR_BASE64_BUFFER_TOO_SMALL );
}
if( use_len != 0 &&
( ( encode_buf = mbedtls_calloc( 1, use_len ) ) == NULL ) )
return( MBEDTLS_ERR_PEM_ALLOC_FAILED );
if( ( ret = mbedtls_base64_encode( encode_buf, use_len, &use_len, der_data,
der_len ) ) != 0 )
{
mbedtls_free( encode_buf );
return( ret );
}
memcpy( p, header, strlen( header ) );
p += strlen( header );
c = encode_buf;
while( use_len )
{
len = ( use_len > 64 ) ? 64 : use_len;
if (c != NULL) {
memcpy( p, c, len );
use_len -= len;
p += len;
c += len;
*p++ = '\n';
}
}
memcpy( p, footer, strlen( footer ) );
p += strlen( footer );
*p++ = '\0';
*olen = p - buf;
mbedtls_free( encode_buf );
return( 0 );
}
#endif /* MBEDTLS_PEM_WRITE_C */
#endif /* MBEDTLS_PEM_PARSE_C || MBEDTLS_PEM_WRITE_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/pem.c | C | apache-2.0 | 14,504 |
/*
* Public Key abstraction layer
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PK_C)
#include "mbedtls/pk.h"
#include "mbedtls/pk_internal.h"
#include "mbedtls/platform_util.h"
#if defined(MBEDTLS_RSA_C)
#include "mbedtls/rsa.h"
#endif
#if defined(MBEDTLS_ECP_C)
#include "mbedtls/ecp.h"
#endif
#if defined(MBEDTLS_ECDSA_C)
#include "mbedtls/ecdsa.h"
#endif
#include <limits.h>
#include <stdint.h>
/* Parameter validation macros based on platform_util.h */
#define PK_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_PK_BAD_INPUT_DATA )
#define PK_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
/*
* Initialise a mbedtls_pk_context
*/
void mbedtls_pk_init( mbedtls_pk_context *ctx )
{
PK_VALIDATE( ctx != NULL );
ctx->pk_info = NULL;
ctx->pk_ctx = NULL;
}
/*
* Free (the components of) a mbedtls_pk_context
*/
void mbedtls_pk_free( mbedtls_pk_context *ctx )
{
if( ctx == NULL )
return;
if ( ctx->pk_info != NULL )
ctx->pk_info->ctx_free_func( ctx->pk_ctx );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_pk_context ) );
}
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
/*
* Initialize a restart context
*/
void mbedtls_pk_restart_init( mbedtls_pk_restart_ctx *ctx )
{
PK_VALIDATE( ctx != NULL );
ctx->pk_info = NULL;
ctx->rs_ctx = NULL;
}
/*
* Free the components of a restart context
*/
void mbedtls_pk_restart_free( mbedtls_pk_restart_ctx *ctx )
{
if( ctx == NULL || ctx->pk_info == NULL ||
ctx->pk_info->rs_free_func == NULL )
{
return;
}
ctx->pk_info->rs_free_func( ctx->rs_ctx );
ctx->pk_info = NULL;
ctx->rs_ctx = NULL;
}
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
/*
* Get pk_info structure from type
*/
const mbedtls_pk_info_t * mbedtls_pk_info_from_type( mbedtls_pk_type_t pk_type )
{
switch( pk_type ) {
#if defined(MBEDTLS_RSA_C)
case MBEDTLS_PK_RSA:
return( &mbedtls_rsa_info );
#endif
#if defined(MBEDTLS_ECP_C)
case MBEDTLS_PK_ECKEY:
return( &mbedtls_eckey_info );
case MBEDTLS_PK_ECKEY_DH:
return( &mbedtls_eckeydh_info );
#endif
#if defined(MBEDTLS_ECDSA_C)
case MBEDTLS_PK_ECDSA:
return( &mbedtls_ecdsa_info );
#endif
/* MBEDTLS_PK_RSA_ALT omitted on purpose */
default:
return( NULL );
}
}
/*
* Initialise context
*/
int mbedtls_pk_setup( mbedtls_pk_context *ctx, const mbedtls_pk_info_t *info )
{
PK_VALIDATE_RET( ctx != NULL );
if( info == NULL || ctx->pk_info != NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ( ctx->pk_ctx = info->ctx_alloc_func() ) == NULL )
return( MBEDTLS_ERR_PK_ALLOC_FAILED );
ctx->pk_info = info;
return( 0 );
}
#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
/*
* Initialize an RSA-alt context
*/
int mbedtls_pk_setup_rsa_alt( mbedtls_pk_context *ctx, void * key,
mbedtls_pk_rsa_alt_decrypt_func decrypt_func,
mbedtls_pk_rsa_alt_sign_func sign_func,
mbedtls_pk_rsa_alt_key_len_func key_len_func )
{
mbedtls_rsa_alt_context *rsa_alt;
const mbedtls_pk_info_t *info = &mbedtls_rsa_alt_info;
PK_VALIDATE_RET( ctx != NULL );
if( ctx->pk_info != NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ( ctx->pk_ctx = info->ctx_alloc_func() ) == NULL )
return( MBEDTLS_ERR_PK_ALLOC_FAILED );
ctx->pk_info = info;
rsa_alt = (mbedtls_rsa_alt_context *) ctx->pk_ctx;
rsa_alt->key = key;
rsa_alt->decrypt_func = decrypt_func;
rsa_alt->sign_func = sign_func;
rsa_alt->key_len_func = key_len_func;
return( 0 );
}
#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */
/*
* Tell if a PK can do the operations of the given type
*/
int mbedtls_pk_can_do( const mbedtls_pk_context *ctx, mbedtls_pk_type_t type )
{
/* A context with null pk_info is not set up yet and can't do anything.
* For backward compatibility, also accept NULL instead of a context
* pointer. */
if( ctx == NULL || ctx->pk_info == NULL )
return( 0 );
return( ctx->pk_info->can_do( type ) );
}
/*
* Helper for mbedtls_pk_sign and mbedtls_pk_verify
*/
static inline int pk_hashlen_helper( mbedtls_md_type_t md_alg, size_t *hash_len )
{
const mbedtls_md_info_t *md_info;
if( *hash_len != 0 )
return( 0 );
if( ( md_info = mbedtls_md_info_from_type( md_alg ) ) == NULL )
return( -1 );
*hash_len = mbedtls_md_get_size( md_info );
return( 0 );
}
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
/*
* Helper to set up a restart context if needed
*/
static int pk_restart_setup( mbedtls_pk_restart_ctx *ctx,
const mbedtls_pk_info_t *info )
{
/* Don't do anything if already set up or invalid */
if( ctx == NULL || ctx->pk_info != NULL )
return( 0 );
/* Should never happen when we're called */
if( info->rs_alloc_func == NULL || info->rs_free_func == NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ( ctx->rs_ctx = info->rs_alloc_func() ) == NULL )
return( MBEDTLS_ERR_PK_ALLOC_FAILED );
ctx->pk_info = info;
return( 0 );
}
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
/*
* Verify a signature (restartable)
*/
int mbedtls_pk_verify_restartable( mbedtls_pk_context *ctx,
mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len,
mbedtls_pk_restart_ctx *rs_ctx )
{
PK_VALIDATE_RET( ctx != NULL );
PK_VALIDATE_RET( ( md_alg == MBEDTLS_MD_NONE && hash_len == 0 ) ||
hash != NULL );
PK_VALIDATE_RET( sig != NULL );
if( ctx->pk_info == NULL ||
pk_hashlen_helper( md_alg, &hash_len ) != 0 )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
/* optimization: use non-restartable version if restart disabled */
if( rs_ctx != NULL &&
mbedtls_ecp_restart_is_enabled() &&
ctx->pk_info->verify_rs_func != NULL )
{
int ret;
if( ( ret = pk_restart_setup( rs_ctx, ctx->pk_info ) ) != 0 )
return( ret );
ret = ctx->pk_info->verify_rs_func( ctx->pk_ctx,
md_alg, hash, hash_len, sig, sig_len, rs_ctx->rs_ctx );
if( ret != MBEDTLS_ERR_ECP_IN_PROGRESS )
mbedtls_pk_restart_free( rs_ctx );
return( ret );
}
#else /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
(void) rs_ctx;
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
if( ctx->pk_info->verify_func == NULL )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
return( ctx->pk_info->verify_func( ctx->pk_ctx, md_alg, hash, hash_len,
sig, sig_len ) );
}
/*
* Verify a signature
*/
int mbedtls_pk_verify( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len )
{
return( mbedtls_pk_verify_restartable( ctx, md_alg, hash, hash_len,
sig, sig_len, NULL ) );
}
/*
* Verify a signature with options
*/
int mbedtls_pk_verify_ext( mbedtls_pk_type_t type, const void *options,
mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len )
{
PK_VALIDATE_RET( ctx != NULL );
PK_VALIDATE_RET( ( md_alg == MBEDTLS_MD_NONE && hash_len == 0 ) ||
hash != NULL );
PK_VALIDATE_RET( sig != NULL );
if( ctx->pk_info == NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ! mbedtls_pk_can_do( ctx, type ) )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
if( type == MBEDTLS_PK_RSASSA_PSS )
{
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_PKCS1_V21)
int ret;
const mbedtls_pk_rsassa_pss_options *pss_opts;
#if SIZE_MAX > UINT_MAX
if( md_alg == MBEDTLS_MD_NONE && UINT_MAX < hash_len )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
#endif /* SIZE_MAX > UINT_MAX */
if( options == NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
pss_opts = (const mbedtls_pk_rsassa_pss_options *) options;
if( sig_len < mbedtls_pk_get_len( ctx ) )
return( MBEDTLS_ERR_RSA_VERIFY_FAILED );
ret = mbedtls_rsa_rsassa_pss_verify_ext( mbedtls_pk_rsa( *ctx ),
NULL, NULL, MBEDTLS_RSA_PUBLIC,
md_alg, (unsigned int) hash_len, hash,
pss_opts->mgf1_hash_id,
pss_opts->expected_salt_len,
sig );
if( ret != 0 )
return( ret );
if( sig_len > mbedtls_pk_get_len( ctx ) )
return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH );
return( 0 );
#else
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
#endif /* MBEDTLS_RSA_C && MBEDTLS_PKCS1_V21 */
}
/* General case: no options */
if( options != NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
return( mbedtls_pk_verify( ctx, md_alg, hash, hash_len, sig, sig_len ) );
}
/*
* Make a signature (restartable)
*/
int mbedtls_pk_sign_restartable( mbedtls_pk_context *ctx,
mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
unsigned char *sig, size_t *sig_len,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
mbedtls_pk_restart_ctx *rs_ctx )
{
PK_VALIDATE_RET( ctx != NULL );
PK_VALIDATE_RET( ( md_alg == MBEDTLS_MD_NONE && hash_len == 0 ) ||
hash != NULL );
PK_VALIDATE_RET( sig != NULL );
if( ctx->pk_info == NULL ||
pk_hashlen_helper( md_alg, &hash_len ) != 0 )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
/* optimization: use non-restartable version if restart disabled */
if( rs_ctx != NULL &&
mbedtls_ecp_restart_is_enabled() &&
ctx->pk_info->sign_rs_func != NULL )
{
int ret;
if( ( ret = pk_restart_setup( rs_ctx, ctx->pk_info ) ) != 0 )
return( ret );
ret = ctx->pk_info->sign_rs_func( ctx->pk_ctx, md_alg,
hash, hash_len, sig, sig_len, f_rng, p_rng, rs_ctx->rs_ctx );
if( ret != MBEDTLS_ERR_ECP_IN_PROGRESS )
mbedtls_pk_restart_free( rs_ctx );
return( ret );
}
#else /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
(void) rs_ctx;
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
if( ctx->pk_info->sign_func == NULL )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
return( ctx->pk_info->sign_func( ctx->pk_ctx, md_alg, hash, hash_len,
sig, sig_len, f_rng, p_rng ) );
}
/*
* Make a signature
*/
int mbedtls_pk_sign( mbedtls_pk_context *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
unsigned char *sig, size_t *sig_len,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
return( mbedtls_pk_sign_restartable( ctx, md_alg, hash, hash_len,
sig, sig_len, f_rng, p_rng, NULL ) );
}
/*
* Decrypt message
*/
int mbedtls_pk_decrypt( mbedtls_pk_context *ctx,
const unsigned char *input, size_t ilen,
unsigned char *output, size_t *olen, size_t osize,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
PK_VALIDATE_RET( ctx != NULL );
PK_VALIDATE_RET( input != NULL || ilen == 0 );
PK_VALIDATE_RET( output != NULL || osize == 0 );
PK_VALIDATE_RET( olen != NULL );
if( ctx->pk_info == NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ctx->pk_info->decrypt_func == NULL )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
return( ctx->pk_info->decrypt_func( ctx->pk_ctx, input, ilen,
output, olen, osize, f_rng, p_rng ) );
}
/*
* Encrypt message
*/
int mbedtls_pk_encrypt( mbedtls_pk_context *ctx,
const unsigned char *input, size_t ilen,
unsigned char *output, size_t *olen, size_t osize,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
PK_VALIDATE_RET( ctx != NULL );
PK_VALIDATE_RET( input != NULL || ilen == 0 );
PK_VALIDATE_RET( output != NULL || osize == 0 );
PK_VALIDATE_RET( olen != NULL );
if( ctx->pk_info == NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ctx->pk_info->encrypt_func == NULL )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
return( ctx->pk_info->encrypt_func( ctx->pk_ctx, input, ilen,
output, olen, osize, f_rng, p_rng ) );
}
/*
* Check public-private key pair
*/
int mbedtls_pk_check_pair( const mbedtls_pk_context *pub, const mbedtls_pk_context *prv )
{
PK_VALIDATE_RET( pub != NULL );
PK_VALIDATE_RET( prv != NULL );
if( pub->pk_info == NULL ||
prv->pk_info == NULL ||
prv->pk_info->check_pair_func == NULL )
{
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
}
if( prv->pk_info->type == MBEDTLS_PK_RSA_ALT )
{
if( pub->pk_info->type != MBEDTLS_PK_RSA )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
}
else
{
if( pub->pk_info != prv->pk_info )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
}
return( prv->pk_info->check_pair_func( pub->pk_ctx, prv->pk_ctx ) );
}
/*
* Get key size in bits
*/
size_t mbedtls_pk_get_bitlen( const mbedtls_pk_context *ctx )
{
/* For backward compatibility, accept NULL or a context that
* isn't set up yet, and return a fake value that should be safe. */
if( ctx == NULL || ctx->pk_info == NULL )
return( 0 );
return( ctx->pk_info->get_bitlen( ctx->pk_ctx ) );
}
/*
* Export debug information
*/
int mbedtls_pk_debug( const mbedtls_pk_context *ctx, mbedtls_pk_debug_item *items )
{
PK_VALIDATE_RET( ctx != NULL );
if( ctx->pk_info == NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
if( ctx->pk_info->debug_func == NULL )
return( MBEDTLS_ERR_PK_TYPE_MISMATCH );
ctx->pk_info->debug_func( ctx->pk_ctx, items );
return( 0 );
}
/*
* Access the PK type name
*/
const char *mbedtls_pk_get_name( const mbedtls_pk_context *ctx )
{
if( ctx == NULL || ctx->pk_info == NULL )
return( "invalid PK" );
return( ctx->pk_info->name );
}
/*
* Access the PK type
*/
mbedtls_pk_type_t mbedtls_pk_get_type( const mbedtls_pk_context *ctx )
{
if( ctx == NULL || ctx->pk_info == NULL )
return( MBEDTLS_PK_NONE );
return( ctx->pk_info->type );
}
#endif /* MBEDTLS_PK_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/pk.c | C | apache-2.0 | 15,779 |
/*
* Public Key abstraction layer: wrapper functions
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PK_C)
#include "mbedtls/pk_internal.h"
/* Even if RSA not activated, for the sake of RSA-alt */
#include "mbedtls/rsa.h"
#include <string.h>
#if defined(MBEDTLS_ECP_C)
#include "mbedtls/ecp.h"
#endif
#if defined(MBEDTLS_ECDSA_C)
#include "mbedtls/ecdsa.h"
#endif
#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
#include "mbedtls/platform_util.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#include <limits.h>
#include <stdint.h>
#if defined(MBEDTLS_RSA_C)
static int rsa_can_do( mbedtls_pk_type_t type )
{
return( type == MBEDTLS_PK_RSA ||
type == MBEDTLS_PK_RSASSA_PSS );
}
static size_t rsa_get_bitlen( const void *ctx )
{
const mbedtls_rsa_context * rsa = (const mbedtls_rsa_context *) ctx;
return( 8 * mbedtls_rsa_get_len( rsa ) );
}
static int rsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len )
{
int ret;
mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx;
size_t rsa_len = mbedtls_rsa_get_len( rsa );
#if SIZE_MAX > UINT_MAX
if( md_alg == MBEDTLS_MD_NONE && UINT_MAX < hash_len )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
#endif /* SIZE_MAX > UINT_MAX */
if( sig_len < rsa_len )
return( MBEDTLS_ERR_RSA_VERIFY_FAILED );
if( ( ret = mbedtls_rsa_pkcs1_verify( rsa, NULL, NULL,
MBEDTLS_RSA_PUBLIC, md_alg,
(unsigned int) hash_len, hash, sig ) ) != 0 )
return( ret );
/* The buffer contains a valid signature followed by extra data.
* We have a special error code for that so that so that callers can
* use mbedtls_pk_verify() to check "Does the buffer start with a
* valid signature?" and not just "Does the buffer contain a valid
* signature?". */
if( sig_len > rsa_len )
return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH );
return( 0 );
}
static int rsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
unsigned char *sig, size_t *sig_len,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx;
#if SIZE_MAX > UINT_MAX
if( md_alg == MBEDTLS_MD_NONE && UINT_MAX < hash_len )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
#endif /* SIZE_MAX > UINT_MAX */
*sig_len = mbedtls_rsa_get_len( rsa );
return( mbedtls_rsa_pkcs1_sign( rsa, f_rng, p_rng, MBEDTLS_RSA_PRIVATE,
md_alg, (unsigned int) hash_len, hash, sig ) );
}
static int rsa_decrypt_wrap( void *ctx,
const unsigned char *input, size_t ilen,
unsigned char *output, size_t *olen, size_t osize,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx;
if( ilen != mbedtls_rsa_get_len( rsa ) )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
return( mbedtls_rsa_pkcs1_decrypt( rsa, f_rng, p_rng,
MBEDTLS_RSA_PRIVATE, olen, input, output, osize ) );
}
static int rsa_encrypt_wrap( void *ctx,
const unsigned char *input, size_t ilen,
unsigned char *output, size_t *olen, size_t osize,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
mbedtls_rsa_context * rsa = (mbedtls_rsa_context *) ctx;
*olen = mbedtls_rsa_get_len( rsa );
if( *olen > osize )
return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE );
return( mbedtls_rsa_pkcs1_encrypt( rsa, f_rng, p_rng, MBEDTLS_RSA_PUBLIC,
ilen, input, output ) );
}
static int rsa_check_pair_wrap( const void *pub, const void *prv )
{
return( mbedtls_rsa_check_pub_priv( (const mbedtls_rsa_context *) pub,
(const mbedtls_rsa_context *) prv ) );
}
static void *rsa_alloc_wrap( void )
{
void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_rsa_context ) );
if( ctx != NULL )
mbedtls_rsa_init( (mbedtls_rsa_context *) ctx, 0, 0 );
return( ctx );
}
static void rsa_free_wrap( void *ctx )
{
mbedtls_rsa_free( (mbedtls_rsa_context *) ctx );
mbedtls_free( ctx );
}
static void rsa_debug( const void *ctx, mbedtls_pk_debug_item *items )
{
items->type = MBEDTLS_PK_DEBUG_MPI;
items->name = "rsa.N";
items->value = &( ((mbedtls_rsa_context *) ctx)->N );
items++;
items->type = MBEDTLS_PK_DEBUG_MPI;
items->name = "rsa.E";
items->value = &( ((mbedtls_rsa_context *) ctx)->E );
}
const mbedtls_pk_info_t mbedtls_rsa_info = {
MBEDTLS_PK_RSA,
"RSA",
rsa_get_bitlen,
rsa_can_do,
rsa_verify_wrap,
rsa_sign_wrap,
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
NULL,
NULL,
#endif
rsa_decrypt_wrap,
rsa_encrypt_wrap,
rsa_check_pair_wrap,
rsa_alloc_wrap,
rsa_free_wrap,
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
NULL,
NULL,
#endif
rsa_debug,
};
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
/*
* Generic EC key
*/
static int eckey_can_do( mbedtls_pk_type_t type )
{
return( type == MBEDTLS_PK_ECKEY ||
type == MBEDTLS_PK_ECKEY_DH ||
type == MBEDTLS_PK_ECDSA );
}
static size_t eckey_get_bitlen( const void *ctx )
{
return( ((mbedtls_ecp_keypair *) ctx)->grp.pbits );
}
#if defined(MBEDTLS_ECDSA_C)
/* Forward declarations */
static int ecdsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len );
static int ecdsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
unsigned char *sig, size_t *sig_len,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng );
static int eckey_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len )
{
int ret;
mbedtls_ecdsa_context ecdsa;
mbedtls_ecdsa_init( &ecdsa );
if( ( ret = mbedtls_ecdsa_from_keypair( &ecdsa, ctx ) ) == 0 )
ret = ecdsa_verify_wrap( &ecdsa, md_alg, hash, hash_len, sig, sig_len );
mbedtls_ecdsa_free( &ecdsa );
return( ret );
}
static int eckey_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
unsigned char *sig, size_t *sig_len,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
int ret;
mbedtls_ecdsa_context ecdsa;
mbedtls_ecdsa_init( &ecdsa );
if( ( ret = mbedtls_ecdsa_from_keypair( &ecdsa, ctx ) ) == 0 )
ret = ecdsa_sign_wrap( &ecdsa, md_alg, hash, hash_len, sig, sig_len,
f_rng, p_rng );
mbedtls_ecdsa_free( &ecdsa );
return( ret );
}
#if defined(MBEDTLS_ECP_RESTARTABLE)
/* Forward declarations */
static int ecdsa_verify_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len,
void *rs_ctx );
static int ecdsa_sign_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
unsigned char *sig, size_t *sig_len,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
void *rs_ctx );
/*
* Restart context for ECDSA operations with ECKEY context
*
* We need to store an actual ECDSA context, as we need to pass the same to
* the underlying ecdsa function, so we can't create it on the fly every time.
*/
typedef struct
{
mbedtls_ecdsa_restart_ctx ecdsa_rs;
mbedtls_ecdsa_context ecdsa_ctx;
} eckey_restart_ctx;
static void *eckey_rs_alloc( void )
{
eckey_restart_ctx *rs_ctx;
void *ctx = mbedtls_calloc( 1, sizeof( eckey_restart_ctx ) );
if( ctx != NULL )
{
rs_ctx = ctx;
mbedtls_ecdsa_restart_init( &rs_ctx->ecdsa_rs );
mbedtls_ecdsa_init( &rs_ctx->ecdsa_ctx );
}
return( ctx );
}
static void eckey_rs_free( void *ctx )
{
eckey_restart_ctx *rs_ctx;
if( ctx == NULL)
return;
rs_ctx = ctx;
mbedtls_ecdsa_restart_free( &rs_ctx->ecdsa_rs );
mbedtls_ecdsa_free( &rs_ctx->ecdsa_ctx );
mbedtls_free( ctx );
}
static int eckey_verify_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len,
void *rs_ctx )
{
int ret;
eckey_restart_ctx *rs = rs_ctx;
/* Should never happen */
if( rs == NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
/* set up our own sub-context if needed (that is, on first run) */
if( rs->ecdsa_ctx.grp.pbits == 0 )
MBEDTLS_MPI_CHK( mbedtls_ecdsa_from_keypair( &rs->ecdsa_ctx, ctx ) );
MBEDTLS_MPI_CHK( ecdsa_verify_rs_wrap( &rs->ecdsa_ctx,
md_alg, hash, hash_len,
sig, sig_len, &rs->ecdsa_rs ) );
cleanup:
return( ret );
}
static int eckey_sign_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
unsigned char *sig, size_t *sig_len,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
void *rs_ctx )
{
int ret;
eckey_restart_ctx *rs = rs_ctx;
/* Should never happen */
if( rs == NULL )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
/* set up our own sub-context if needed (that is, on first run) */
if( rs->ecdsa_ctx.grp.pbits == 0 )
MBEDTLS_MPI_CHK( mbedtls_ecdsa_from_keypair( &rs->ecdsa_ctx, ctx ) );
MBEDTLS_MPI_CHK( ecdsa_sign_rs_wrap( &rs->ecdsa_ctx, md_alg,
hash, hash_len, sig, sig_len,
f_rng, p_rng, &rs->ecdsa_rs ) );
cleanup:
return( ret );
}
#endif /* MBEDTLS_ECP_RESTARTABLE */
#endif /* MBEDTLS_ECDSA_C */
static int eckey_check_pair( const void *pub, const void *prv )
{
return( mbedtls_ecp_check_pub_priv( (const mbedtls_ecp_keypair *) pub,
(const mbedtls_ecp_keypair *) prv ) );
}
static void *eckey_alloc_wrap( void )
{
void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ecp_keypair ) );
if( ctx != NULL )
mbedtls_ecp_keypair_init( ctx );
return( ctx );
}
static void eckey_free_wrap( void *ctx )
{
mbedtls_ecp_keypair_free( (mbedtls_ecp_keypair *) ctx );
mbedtls_free( ctx );
}
static void eckey_debug( const void *ctx, mbedtls_pk_debug_item *items )
{
items->type = MBEDTLS_PK_DEBUG_ECP;
items->name = "eckey.Q";
items->value = &( ((mbedtls_ecp_keypair *) ctx)->Q );
}
const mbedtls_pk_info_t mbedtls_eckey_info = {
MBEDTLS_PK_ECKEY,
"EC",
eckey_get_bitlen,
eckey_can_do,
#if defined(MBEDTLS_ECDSA_C)
eckey_verify_wrap,
eckey_sign_wrap,
#if defined(MBEDTLS_ECP_RESTARTABLE)
eckey_verify_rs_wrap,
eckey_sign_rs_wrap,
#endif
#else /* MBEDTLS_ECDSA_C */
NULL,
NULL,
#endif /* MBEDTLS_ECDSA_C */
NULL,
NULL,
eckey_check_pair,
eckey_alloc_wrap,
eckey_free_wrap,
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
eckey_rs_alloc,
eckey_rs_free,
#endif
eckey_debug,
};
/*
* EC key restricted to ECDH
*/
static int eckeydh_can_do( mbedtls_pk_type_t type )
{
return( type == MBEDTLS_PK_ECKEY ||
type == MBEDTLS_PK_ECKEY_DH );
}
const mbedtls_pk_info_t mbedtls_eckeydh_info = {
MBEDTLS_PK_ECKEY_DH,
"EC_DH",
eckey_get_bitlen, /* Same underlying key structure */
eckeydh_can_do,
NULL,
NULL,
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
NULL,
NULL,
#endif
NULL,
NULL,
eckey_check_pair,
eckey_alloc_wrap, /* Same underlying key structure */
eckey_free_wrap, /* Same underlying key structure */
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
NULL,
NULL,
#endif
eckey_debug, /* Same underlying key structure */
};
#endif /* MBEDTLS_ECP_C */
#if defined(MBEDTLS_ECDSA_C)
static int ecdsa_can_do( mbedtls_pk_type_t type )
{
return( type == MBEDTLS_PK_ECDSA );
}
static int ecdsa_verify_wrap( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len )
{
int ret;
((void) md_alg);
ret = mbedtls_ecdsa_read_signature( (mbedtls_ecdsa_context *) ctx,
hash, hash_len, sig, sig_len );
if( ret == MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH )
return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH );
return( ret );
}
static int ecdsa_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
unsigned char *sig, size_t *sig_len,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
return( mbedtls_ecdsa_write_signature( (mbedtls_ecdsa_context *) ctx,
md_alg, hash, hash_len, sig, sig_len, f_rng, p_rng ) );
}
#if defined(MBEDTLS_ECP_RESTARTABLE)
static int ecdsa_verify_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
const unsigned char *sig, size_t sig_len,
void *rs_ctx )
{
int ret;
((void) md_alg);
ret = mbedtls_ecdsa_read_signature_restartable(
(mbedtls_ecdsa_context *) ctx,
hash, hash_len, sig, sig_len,
(mbedtls_ecdsa_restart_ctx *) rs_ctx );
if( ret == MBEDTLS_ERR_ECP_SIG_LEN_MISMATCH )
return( MBEDTLS_ERR_PK_SIG_LEN_MISMATCH );
return( ret );
}
static int ecdsa_sign_rs_wrap( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
unsigned char *sig, size_t *sig_len,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
void *rs_ctx )
{
return( mbedtls_ecdsa_write_signature_restartable(
(mbedtls_ecdsa_context *) ctx,
md_alg, hash, hash_len, sig, sig_len, f_rng, p_rng,
(mbedtls_ecdsa_restart_ctx *) rs_ctx ) );
}
#endif /* MBEDTLS_ECP_RESTARTABLE */
static void *ecdsa_alloc_wrap( void )
{
void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ecdsa_context ) );
if( ctx != NULL )
mbedtls_ecdsa_init( (mbedtls_ecdsa_context *) ctx );
return( ctx );
}
static void ecdsa_free_wrap( void *ctx )
{
mbedtls_ecdsa_free( (mbedtls_ecdsa_context *) ctx );
mbedtls_free( ctx );
}
#if defined(MBEDTLS_ECP_RESTARTABLE)
static void *ecdsa_rs_alloc( void )
{
void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_ecdsa_restart_ctx ) );
if( ctx != NULL )
mbedtls_ecdsa_restart_init( ctx );
return( ctx );
}
static void ecdsa_rs_free( void *ctx )
{
mbedtls_ecdsa_restart_free( ctx );
mbedtls_free( ctx );
}
#endif /* MBEDTLS_ECP_RESTARTABLE */
const mbedtls_pk_info_t mbedtls_ecdsa_info = {
MBEDTLS_PK_ECDSA,
"ECDSA",
eckey_get_bitlen, /* Compatible key structures */
ecdsa_can_do,
ecdsa_verify_wrap,
ecdsa_sign_wrap,
#if defined(MBEDTLS_ECP_RESTARTABLE)
ecdsa_verify_rs_wrap,
ecdsa_sign_rs_wrap,
#endif
NULL,
NULL,
eckey_check_pair, /* Compatible key structures */
ecdsa_alloc_wrap,
ecdsa_free_wrap,
#if defined(MBEDTLS_ECP_RESTARTABLE)
ecdsa_rs_alloc,
ecdsa_rs_free,
#endif
eckey_debug, /* Compatible key structures */
};
#endif /* MBEDTLS_ECDSA_C */
#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
/*
* Support for alternative RSA-private implementations
*/
static int rsa_alt_can_do( mbedtls_pk_type_t type )
{
return( type == MBEDTLS_PK_RSA );
}
static size_t rsa_alt_get_bitlen( const void *ctx )
{
const mbedtls_rsa_alt_context *rsa_alt = (const mbedtls_rsa_alt_context *) ctx;
return( 8 * rsa_alt->key_len_func( rsa_alt->key ) );
}
static int rsa_alt_sign_wrap( void *ctx, mbedtls_md_type_t md_alg,
const unsigned char *hash, size_t hash_len,
unsigned char *sig, size_t *sig_len,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
mbedtls_rsa_alt_context *rsa_alt = (mbedtls_rsa_alt_context *) ctx;
#if SIZE_MAX > UINT_MAX
if( UINT_MAX < hash_len )
return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
#endif /* SIZE_MAX > UINT_MAX */
*sig_len = rsa_alt->key_len_func( rsa_alt->key );
return( rsa_alt->sign_func( rsa_alt->key, f_rng, p_rng, MBEDTLS_RSA_PRIVATE,
md_alg, (unsigned int) hash_len, hash, sig ) );
}
static int rsa_alt_decrypt_wrap( void *ctx,
const unsigned char *input, size_t ilen,
unsigned char *output, size_t *olen, size_t osize,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
mbedtls_rsa_alt_context *rsa_alt = (mbedtls_rsa_alt_context *) ctx;
((void) f_rng);
((void) p_rng);
if( ilen != rsa_alt->key_len_func( rsa_alt->key ) )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
return( rsa_alt->decrypt_func( rsa_alt->key,
MBEDTLS_RSA_PRIVATE, olen, input, output, osize ) );
}
#if defined(MBEDTLS_RSA_C)
static int rsa_alt_check_pair( const void *pub, const void *prv )
{
unsigned char sig[MBEDTLS_MPI_MAX_SIZE];
unsigned char hash[32];
size_t sig_len = 0;
int ret;
if( rsa_alt_get_bitlen( prv ) != rsa_get_bitlen( pub ) )
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
memset( hash, 0x2a, sizeof( hash ) );
if( ( ret = rsa_alt_sign_wrap( (void *) prv, MBEDTLS_MD_NONE,
hash, sizeof( hash ),
sig, &sig_len, NULL, NULL ) ) != 0 )
{
return( ret );
}
if( rsa_verify_wrap( (void *) pub, MBEDTLS_MD_NONE,
hash, sizeof( hash ), sig, sig_len ) != 0 )
{
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
}
return( 0 );
}
#endif /* MBEDTLS_RSA_C */
static void *rsa_alt_alloc_wrap( void )
{
void *ctx = mbedtls_calloc( 1, sizeof( mbedtls_rsa_alt_context ) );
if( ctx != NULL )
memset( ctx, 0, sizeof( mbedtls_rsa_alt_context ) );
return( ctx );
}
static void rsa_alt_free_wrap( void *ctx )
{
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_rsa_alt_context ) );
mbedtls_free( ctx );
}
const mbedtls_pk_info_t mbedtls_rsa_alt_info = {
MBEDTLS_PK_RSA_ALT,
"RSA-alt",
rsa_alt_get_bitlen,
rsa_alt_can_do,
NULL,
rsa_alt_sign_wrap,
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
NULL,
NULL,
#endif
rsa_alt_decrypt_wrap,
NULL,
#if defined(MBEDTLS_RSA_C)
rsa_alt_check_pair,
#else
NULL,
#endif
rsa_alt_alloc_wrap,
rsa_alt_free_wrap,
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
NULL,
NULL,
#endif
NULL,
};
#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */
#endif /* MBEDTLS_PK_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/pk_wrap.c | C | apache-2.0 | 20,587 |
/**
* \file pkcs11.c
*
* \brief Wrapper for PKCS#11 library libpkcs11-helper
*
* \author Adriaan de Jong <dejong@fox-it.com>
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#include "mbedtls/pkcs11.h"
#if defined(MBEDTLS_PKCS11_C)
#include "mbedtls/md.h"
#include "mbedtls/oid.h"
#include "mbedtls/x509_crt.h"
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#include <string.h>
void mbedtls_pkcs11_init( mbedtls_pkcs11_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_pkcs11_context ) );
}
int mbedtls_pkcs11_x509_cert_bind( mbedtls_x509_crt *cert, pkcs11h_certificate_t pkcs11_cert )
{
int ret = 1;
unsigned char *cert_blob = NULL;
size_t cert_blob_size = 0;
if( cert == NULL )
{
ret = 2;
goto cleanup;
}
if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, NULL,
&cert_blob_size ) != CKR_OK )
{
ret = 3;
goto cleanup;
}
cert_blob = mbedtls_calloc( 1, cert_blob_size );
if( NULL == cert_blob )
{
ret = 4;
goto cleanup;
}
if( pkcs11h_certificate_getCertificateBlob( pkcs11_cert, cert_blob,
&cert_blob_size ) != CKR_OK )
{
ret = 5;
goto cleanup;
}
if( 0 != mbedtls_x509_crt_parse( cert, cert_blob, cert_blob_size ) )
{
ret = 6;
goto cleanup;
}
ret = 0;
cleanup:
if( NULL != cert_blob )
mbedtls_free( cert_blob );
return( ret );
}
int mbedtls_pkcs11_priv_key_bind( mbedtls_pkcs11_context *priv_key,
pkcs11h_certificate_t pkcs11_cert )
{
int ret = 1;
mbedtls_x509_crt cert;
mbedtls_x509_crt_init( &cert );
if( priv_key == NULL )
goto cleanup;
if( 0 != mbedtls_pkcs11_x509_cert_bind( &cert, pkcs11_cert ) )
goto cleanup;
priv_key->len = mbedtls_pk_get_len( &cert.pk );
priv_key->pkcs11h_cert = pkcs11_cert;
ret = 0;
cleanup:
mbedtls_x509_crt_free( &cert );
return( ret );
}
void mbedtls_pkcs11_priv_key_free( mbedtls_pkcs11_context *priv_key )
{
if( NULL != priv_key )
pkcs11h_certificate_freeCertificate( priv_key->pkcs11h_cert );
}
int mbedtls_pkcs11_decrypt( mbedtls_pkcs11_context *ctx,
int mode, size_t *olen,
const unsigned char *input,
unsigned char *output,
size_t output_max_len )
{
size_t input_len, output_len;
if( NULL == ctx )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
if( MBEDTLS_RSA_PRIVATE != mode )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
output_len = input_len = ctx->len;
if( input_len < 16 || input_len > output_max_len )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
/* Determine size of output buffer */
if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
input_len, NULL, &output_len ) != CKR_OK )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
if( output_len > output_max_len )
return( MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE );
if( pkcs11h_certificate_decryptAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, input,
input_len, output, &output_len ) != CKR_OK )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
*olen = output_len;
return( 0 );
}
int mbedtls_pkcs11_sign( mbedtls_pkcs11_context *ctx,
int mode,
mbedtls_md_type_t md_alg,
unsigned int hashlen,
const unsigned char *hash,
unsigned char *sig )
{
size_t sig_len = 0, asn_len = 0, oid_size = 0;
unsigned char *p = sig;
const char *oid;
if( NULL == ctx )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
if( MBEDTLS_RSA_PRIVATE != mode )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
if( md_alg != MBEDTLS_MD_NONE )
{
const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg );
if( md_info == NULL )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
if( mbedtls_oid_get_oid_by_md( md_alg, &oid, &oid_size ) != 0 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
hashlen = mbedtls_md_get_size( md_info );
asn_len = 10 + oid_size;
}
sig_len = ctx->len;
if( hashlen > sig_len || asn_len > sig_len ||
hashlen + asn_len > sig_len )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
if( md_alg != MBEDTLS_MD_NONE )
{
/*
* DigestInfo ::= SEQUENCE {
* digestAlgorithm DigestAlgorithmIdentifier,
* digest Digest }
*
* DigestAlgorithmIdentifier ::= AlgorithmIdentifier
*
* Digest ::= OCTET STRING
*/
*p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
*p++ = (unsigned char) ( 0x08 + oid_size + hashlen );
*p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
*p++ = (unsigned char) ( 0x04 + oid_size );
*p++ = MBEDTLS_ASN1_OID;
*p++ = oid_size & 0xFF;
memcpy( p, oid, oid_size );
p += oid_size;
*p++ = MBEDTLS_ASN1_NULL;
*p++ = 0x00;
*p++ = MBEDTLS_ASN1_OCTET_STRING;
*p++ = hashlen;
}
memcpy( p, hash, hashlen );
if( pkcs11h_certificate_signAny( ctx->pkcs11h_cert, CKM_RSA_PKCS, sig,
asn_len + hashlen, sig, &sig_len ) != CKR_OK )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
return( 0 );
}
#endif /* defined(MBEDTLS_PKCS11_C) */
| YifuLiu/AliOS-Things | components/mbedtls/library/pkcs11.c | C | apache-2.0 | 6,394 |
/*
* PKCS#12 Personal Information Exchange Syntax
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The PKCS #12 Personal Information Exchange Syntax Standard v1.1
*
* http://www.rsa.com/rsalabs/pkcs/files/h11301-wp-pkcs-12v1-1-personal-information-exchange-syntax.pdf
* ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-12/pkcs-12v1-1.asn
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PKCS12_C)
#include "mbedtls/pkcs12.h"
#include "mbedtls/asn1.h"
#include "mbedtls/cipher.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_ARC4_C)
#include "mbedtls/arc4.h"
#endif
#if defined(MBEDTLS_DES_C)
#include "mbedtls/des.h"
#endif
#if defined(MBEDTLS_ASN1_PARSE_C)
static int pkcs12_parse_pbe_params( mbedtls_asn1_buf *params,
mbedtls_asn1_buf *salt, int *iterations )
{
int ret;
unsigned char **p = ¶ms->p;
const unsigned char *end = params->p + params->len;
/*
* pkcs-12PbeParams ::= SEQUENCE {
* salt OCTET STRING,
* iterations INTEGER
* }
*
*/
if( params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) )
return( MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
if( ( ret = mbedtls_asn1_get_tag( p, end, &salt->len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 )
return( MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT + ret );
salt->p = *p;
*p += salt->len;
if( ( ret = mbedtls_asn1_get_int( p, end, iterations ) ) != 0 )
return( MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT + ret );
if( *p != end )
return( MBEDTLS_ERR_PKCS12_PBE_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
#define PKCS12_MAX_PWDLEN 128
static int pkcs12_pbe_derive_key_iv( mbedtls_asn1_buf *pbe_params, mbedtls_md_type_t md_type,
const unsigned char *pwd, size_t pwdlen,
unsigned char *key, size_t keylen,
unsigned char *iv, size_t ivlen )
{
int ret, iterations = 0;
mbedtls_asn1_buf salt;
size_t i;
unsigned char unipwd[PKCS12_MAX_PWDLEN * 2 + 2];
if( pwdlen > PKCS12_MAX_PWDLEN )
return( MBEDTLS_ERR_PKCS12_BAD_INPUT_DATA );
memset( &salt, 0, sizeof(mbedtls_asn1_buf) );
memset( &unipwd, 0, sizeof(unipwd) );
if( ( ret = pkcs12_parse_pbe_params( pbe_params, &salt,
&iterations ) ) != 0 )
return( ret );
for( i = 0; i < pwdlen; i++ )
unipwd[i * 2 + 1] = pwd[i];
if( ( ret = mbedtls_pkcs12_derivation( key, keylen, unipwd, pwdlen * 2 + 2,
salt.p, salt.len, md_type,
MBEDTLS_PKCS12_DERIVE_KEY, iterations ) ) != 0 )
{
return( ret );
}
if( iv == NULL || ivlen == 0 )
return( 0 );
if( ( ret = mbedtls_pkcs12_derivation( iv, ivlen, unipwd, pwdlen * 2 + 2,
salt.p, salt.len, md_type,
MBEDTLS_PKCS12_DERIVE_IV, iterations ) ) != 0 )
{
return( ret );
}
return( 0 );
}
#undef PKCS12_MAX_PWDLEN
int mbedtls_pkcs12_pbe_sha1_rc4_128( mbedtls_asn1_buf *pbe_params, int mode,
const unsigned char *pwd, size_t pwdlen,
const unsigned char *data, size_t len,
unsigned char *output )
{
#if !defined(MBEDTLS_ARC4_C)
((void) pbe_params);
((void) mode);
((void) pwd);
((void) pwdlen);
((void) data);
((void) len);
((void) output);
return( MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE );
#else
int ret;
unsigned char key[16];
mbedtls_arc4_context ctx;
((void) mode);
mbedtls_arc4_init( &ctx );
if( ( ret = pkcs12_pbe_derive_key_iv( pbe_params, MBEDTLS_MD_SHA1,
pwd, pwdlen,
key, 16, NULL, 0 ) ) != 0 )
{
return( ret );
}
mbedtls_arc4_setup( &ctx, key, 16 );
if( ( ret = mbedtls_arc4_crypt( &ctx, len, data, output ) ) != 0 )
goto exit;
exit:
mbedtls_platform_zeroize( key, sizeof( key ) );
mbedtls_arc4_free( &ctx );
return( ret );
#endif /* MBEDTLS_ARC4_C */
}
int mbedtls_pkcs12_pbe( mbedtls_asn1_buf *pbe_params, int mode,
mbedtls_cipher_type_t cipher_type, mbedtls_md_type_t md_type,
const unsigned char *pwd, size_t pwdlen,
const unsigned char *data, size_t len,
unsigned char *output )
{
int ret, keylen = 0;
unsigned char key[32];
unsigned char iv[16];
const mbedtls_cipher_info_t *cipher_info;
mbedtls_cipher_context_t cipher_ctx;
size_t olen = 0;
cipher_info = mbedtls_cipher_info_from_type( cipher_type );
if( cipher_info == NULL )
return( MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE );
keylen = cipher_info->key_bitlen / 8;
if( ( ret = pkcs12_pbe_derive_key_iv( pbe_params, md_type, pwd, pwdlen,
key, keylen,
iv, cipher_info->iv_size ) ) != 0 )
{
return( ret );
}
mbedtls_cipher_init( &cipher_ctx );
if( ( ret = mbedtls_cipher_setup( &cipher_ctx, cipher_info ) ) != 0 )
goto exit;
if( ( ret = mbedtls_cipher_setkey( &cipher_ctx, key, 8 * keylen, (mbedtls_operation_t) mode ) ) != 0 )
goto exit;
if( ( ret = mbedtls_cipher_set_iv( &cipher_ctx, iv, cipher_info->iv_size ) ) != 0 )
goto exit;
if( ( ret = mbedtls_cipher_reset( &cipher_ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_cipher_update( &cipher_ctx, data, len,
output, &olen ) ) != 0 )
{
goto exit;
}
if( ( ret = mbedtls_cipher_finish( &cipher_ctx, output + olen, &olen ) ) != 0 )
ret = MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH;
exit:
mbedtls_platform_zeroize( key, sizeof( key ) );
mbedtls_platform_zeroize( iv, sizeof( iv ) );
mbedtls_cipher_free( &cipher_ctx );
return( ret );
}
#endif /* MBEDTLS_ASN1_PARSE_C */
static void pkcs12_fill_buffer( unsigned char *data, size_t data_len,
const unsigned char *filler, size_t fill_len )
{
unsigned char *p = data;
size_t use_len;
while( data_len > 0 )
{
use_len = ( data_len > fill_len ) ? fill_len : data_len;
memcpy( p, filler, use_len );
p += use_len;
data_len -= use_len;
}
}
int mbedtls_pkcs12_derivation( unsigned char *data, size_t datalen,
const unsigned char *pwd, size_t pwdlen,
const unsigned char *salt, size_t saltlen,
mbedtls_md_type_t md_type, int id, int iterations )
{
int ret;
unsigned int j;
unsigned char diversifier[128];
unsigned char salt_block[128], pwd_block[128], hash_block[128];
unsigned char hash_output[MBEDTLS_MD_MAX_SIZE];
unsigned char *p;
unsigned char c;
size_t hlen, use_len, v, i;
const mbedtls_md_info_t *md_info;
mbedtls_md_context_t md_ctx;
// This version only allows max of 64 bytes of password or salt
if( datalen > 128 || pwdlen > 64 || saltlen > 64 )
return( MBEDTLS_ERR_PKCS12_BAD_INPUT_DATA );
md_info = mbedtls_md_info_from_type( md_type );
if( md_info == NULL )
return( MBEDTLS_ERR_PKCS12_FEATURE_UNAVAILABLE );
mbedtls_md_init( &md_ctx );
if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 )
return( ret );
hlen = mbedtls_md_get_size( md_info );
if( hlen <= 32 )
v = 64;
else
v = 128;
memset( diversifier, (unsigned char) id, v );
pkcs12_fill_buffer( salt_block, v, salt, saltlen );
pkcs12_fill_buffer( pwd_block, v, pwd, pwdlen );
p = data;
while( datalen > 0 )
{
// Calculate hash( diversifier || salt_block || pwd_block )
if( ( ret = mbedtls_md_starts( &md_ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_update( &md_ctx, diversifier, v ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_update( &md_ctx, salt_block, v ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_update( &md_ctx, pwd_block, v ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_finish( &md_ctx, hash_output ) ) != 0 )
goto exit;
// Perform remaining ( iterations - 1 ) recursive hash calculations
for( i = 1; i < (size_t) iterations; i++ )
{
if( ( ret = mbedtls_md( md_info, hash_output, hlen, hash_output ) ) != 0 )
goto exit;
}
use_len = ( datalen > hlen ) ? hlen : datalen;
use_len = ( use_len < MBEDTLS_MD_MAX_SIZE) ? use_len : MBEDTLS_MD_MAX_SIZE;
memcpy( p, hash_output, use_len );
datalen -= use_len;
p += use_len;
if( datalen == 0 )
break;
// Concatenating copies of hash_output into hash_block (B)
pkcs12_fill_buffer( hash_block, v, hash_output, hlen );
// B += 1
for( i = v; i > 0; i-- )
if( ++hash_block[i - 1] != 0 )
break;
// salt_block += B
c = 0;
for( i = v; i > 0; i-- )
{
j = salt_block[i - 1] + hash_block[i - 1] + c;
c = (unsigned char) (j >> 8);
salt_block[i - 1] = j & 0xFF;
}
// pwd_block += B
c = 0;
for( i = v; i > 0; i-- )
{
j = pwd_block[i - 1] + hash_block[i - 1] + c;
c = (unsigned char) (j >> 8);
pwd_block[i - 1] = j & 0xFF;
}
}
ret = 0;
exit:
mbedtls_platform_zeroize( salt_block, sizeof( salt_block ) );
mbedtls_platform_zeroize( pwd_block, sizeof( pwd_block ) );
mbedtls_platform_zeroize( hash_block, sizeof( hash_block ) );
mbedtls_platform_zeroize( hash_output, sizeof( hash_output ) );
mbedtls_md_free( &md_ctx );
return( ret );
}
#endif /* MBEDTLS_PKCS12_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/pkcs12.c | C | apache-2.0 | 10,961 |
/**
* \file pkcs5.c
*
* \brief PKCS#5 functions
*
* \author Mathias Olsson <mathias@kompetensum.com>
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* PKCS#5 includes PBKDF2 and more
*
* http://tools.ietf.org/html/rfc2898 (Specification)
* http://tools.ietf.org/html/rfc6070 (Test vectors)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PKCS5_C)
#include "mbedtls/pkcs5.h"
#if defined(MBEDTLS_ASN1_PARSE_C)
#include "mbedtls/asn1.h"
#include "mbedtls/cipher.h"
#include "mbedtls/oid.h"
#endif /* MBEDTLS_ASN1_PARSE_C */
#include <string.h>
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif
#if defined(MBEDTLS_ASN1_PARSE_C)
static int pkcs5_parse_pbkdf2_params( const mbedtls_asn1_buf *params,
mbedtls_asn1_buf *salt, int *iterations,
int *keylen, mbedtls_md_type_t *md_type )
{
int ret;
mbedtls_asn1_buf prf_alg_oid;
unsigned char *p = params->p;
const unsigned char *end = params->p + params->len;
if( params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
/*
* PBKDF2-params ::= SEQUENCE {
* salt OCTET STRING,
* iterationCount INTEGER,
* keyLength INTEGER OPTIONAL
* prf AlgorithmIdentifier DEFAULT algid-hmacWithSHA1
* }
*
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &salt->len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
salt->p = p;
p += salt->len;
if( ( ret = mbedtls_asn1_get_int( &p, end, iterations ) ) != 0 )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
if( p == end )
return( 0 );
if( ( ret = mbedtls_asn1_get_int( &p, end, keylen ) ) != 0 )
{
if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
}
if( p == end )
return( 0 );
if( ( ret = mbedtls_asn1_get_alg_null( &p, end, &prf_alg_oid ) ) != 0 )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
if( mbedtls_oid_get_md_hmac( &prf_alg_oid, md_type ) != 0 )
return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE );
if( p != end )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
int mbedtls_pkcs5_pbes2( const mbedtls_asn1_buf *pbe_params, int mode,
const unsigned char *pwd, size_t pwdlen,
const unsigned char *data, size_t datalen,
unsigned char *output )
{
int ret, iterations = 0, keylen = 0;
unsigned char *p, *end;
mbedtls_asn1_buf kdf_alg_oid, enc_scheme_oid, kdf_alg_params, enc_scheme_params;
mbedtls_asn1_buf salt;
mbedtls_md_type_t md_type = MBEDTLS_MD_SHA1;
unsigned char key[32], iv[32];
size_t olen = 0;
const mbedtls_md_info_t *md_info;
const mbedtls_cipher_info_t *cipher_info;
mbedtls_md_context_t md_ctx;
mbedtls_cipher_type_t cipher_alg;
mbedtls_cipher_context_t cipher_ctx;
p = pbe_params->p;
end = p + pbe_params->len;
/*
* PBES2-params ::= SEQUENCE {
* keyDerivationFunc AlgorithmIdentifier {{PBES2-KDFs}},
* encryptionScheme AlgorithmIdentifier {{PBES2-Encs}}
* }
*/
if( pbe_params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
if( ( ret = mbedtls_asn1_get_alg( &p, end, &kdf_alg_oid, &kdf_alg_params ) ) != 0 )
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
// Only PBKDF2 supported at the moment
//
if( MBEDTLS_OID_CMP( MBEDTLS_OID_PKCS5_PBKDF2, &kdf_alg_oid ) != 0 )
return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE );
if( ( ret = pkcs5_parse_pbkdf2_params( &kdf_alg_params,
&salt, &iterations, &keylen,
&md_type ) ) != 0 )
{
return( ret );
}
md_info = mbedtls_md_info_from_type( md_type );
if( md_info == NULL )
return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE );
if( ( ret = mbedtls_asn1_get_alg( &p, end, &enc_scheme_oid,
&enc_scheme_params ) ) != 0 )
{
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT + ret );
}
if( mbedtls_oid_get_cipher_alg( &enc_scheme_oid, &cipher_alg ) != 0 )
return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE );
cipher_info = mbedtls_cipher_info_from_type( cipher_alg );
if( cipher_info == NULL )
return( MBEDTLS_ERR_PKCS5_FEATURE_UNAVAILABLE );
/*
* The value of keylen from pkcs5_parse_pbkdf2_params() is ignored
* since it is optional and we don't know if it was set or not
*/
keylen = cipher_info->key_bitlen / 8;
if( enc_scheme_params.tag != MBEDTLS_ASN1_OCTET_STRING ||
enc_scheme_params.len != cipher_info->iv_size )
{
return( MBEDTLS_ERR_PKCS5_INVALID_FORMAT );
}
mbedtls_md_init( &md_ctx );
mbedtls_cipher_init( &cipher_ctx );
memcpy( iv, enc_scheme_params.p, enc_scheme_params.len );
if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_pkcs5_pbkdf2_hmac( &md_ctx, pwd, pwdlen, salt.p, salt.len,
iterations, keylen, key ) ) != 0 )
{
goto exit;
}
if( ( ret = mbedtls_cipher_setup( &cipher_ctx, cipher_info ) ) != 0 )
goto exit;
if( ( ret = mbedtls_cipher_setkey( &cipher_ctx, key, 8 * keylen, (mbedtls_operation_t) mode ) ) != 0 )
goto exit;
if( ( ret = mbedtls_cipher_crypt( &cipher_ctx, iv, enc_scheme_params.len,
data, datalen, output, &olen ) ) != 0 )
ret = MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH;
exit:
mbedtls_md_free( &md_ctx );
mbedtls_cipher_free( &cipher_ctx );
return( ret );
}
#endif /* MBEDTLS_ASN1_PARSE_C */
int mbedtls_pkcs5_pbkdf2_hmac( mbedtls_md_context_t *ctx, const unsigned char *password,
size_t plen, const unsigned char *salt, size_t slen,
unsigned int iteration_count,
uint32_t key_length, unsigned char *output )
{
int ret, j;
unsigned int i;
unsigned char md1[MBEDTLS_MD_MAX_SIZE];
unsigned char work[MBEDTLS_MD_MAX_SIZE];
unsigned char md_size = mbedtls_md_get_size( ctx->md_info );
size_t use_len;
unsigned char *out_p = output;
unsigned char counter[4];
memset( counter, 0, 4 );
counter[3] = 1;
#if UINT_MAX > 0xFFFFFFFF
if( iteration_count > 0xFFFFFFFF )
return( MBEDTLS_ERR_PKCS5_BAD_INPUT_DATA );
#endif
while( key_length )
{
// U1 ends up in work
//
if( ( ret = mbedtls_md_hmac_starts( ctx, password, plen ) ) != 0 )
return( ret );
if( ( ret = mbedtls_md_hmac_update( ctx, salt, slen ) ) != 0 )
return( ret );
if( ( ret = mbedtls_md_hmac_update( ctx, counter, 4 ) ) != 0 )
return( ret );
if( ( ret = mbedtls_md_hmac_finish( ctx, work ) ) != 0 )
return( ret );
memcpy( md1, work, md_size );
for( i = 1; i < iteration_count; i++ )
{
// U2 ends up in md1
//
if( ( ret = mbedtls_md_hmac_starts( ctx, password, plen ) ) != 0 )
return( ret );
if( ( ret = mbedtls_md_hmac_update( ctx, md1, md_size ) ) != 0 )
return( ret );
if( ( ret = mbedtls_md_hmac_finish( ctx, md1 ) ) != 0 )
return( ret );
// U1 xor U2
//
for( j = 0; j < md_size; j++ )
work[j] ^= md1[j];
}
use_len = ( key_length < md_size ) ? key_length : md_size;
memcpy( out_p, work, use_len );
key_length -= (uint32_t) use_len;
out_p += use_len;
for( i = 4; i > 0; i-- )
if( ++counter[i - 1] != 0 )
break;
}
return( 0 );
}
#if defined(MBEDTLS_SELF_TEST)
#if !defined(MBEDTLS_SHA1_C)
int mbedtls_pkcs5_self_test( int verbose )
{
if( verbose != 0 )
mbedtls_printf( " PBKDF2 (SHA1): skipped\n\n" );
return( 0 );
}
#else
#define MAX_TESTS 6
static const size_t plen[MAX_TESTS] =
{ 8, 8, 8, 24, 9 };
static const unsigned char password[MAX_TESTS][32] =
{
"password",
"password",
"password",
"passwordPASSWORDpassword",
"pass\0word",
};
static const size_t slen[MAX_TESTS] =
{ 4, 4, 4, 36, 5 };
static const unsigned char salt[MAX_TESTS][40] =
{
"salt",
"salt",
"salt",
"saltSALTsaltSALTsaltSALTsaltSALTsalt",
"sa\0lt",
};
static const uint32_t it_cnt[MAX_TESTS] =
{ 1, 2, 4096, 4096, 4096 };
static const uint32_t key_len[MAX_TESTS] =
{ 20, 20, 20, 25, 16 };
static const unsigned char result_key[MAX_TESTS][32] =
{
{ 0x0c, 0x60, 0xc8, 0x0f, 0x96, 0x1f, 0x0e, 0x71,
0xf3, 0xa9, 0xb5, 0x24, 0xaf, 0x60, 0x12, 0x06,
0x2f, 0xe0, 0x37, 0xa6 },
{ 0xea, 0x6c, 0x01, 0x4d, 0xc7, 0x2d, 0x6f, 0x8c,
0xcd, 0x1e, 0xd9, 0x2a, 0xce, 0x1d, 0x41, 0xf0,
0xd8, 0xde, 0x89, 0x57 },
{ 0x4b, 0x00, 0x79, 0x01, 0xb7, 0x65, 0x48, 0x9a,
0xbe, 0xad, 0x49, 0xd9, 0x26, 0xf7, 0x21, 0xd0,
0x65, 0xa4, 0x29, 0xc1 },
{ 0x3d, 0x2e, 0xec, 0x4f, 0xe4, 0x1c, 0x84, 0x9b,
0x80, 0xc8, 0xd8, 0x36, 0x62, 0xc0, 0xe4, 0x4a,
0x8b, 0x29, 0x1a, 0x96, 0x4c, 0xf2, 0xf0, 0x70,
0x38 },
{ 0x56, 0xfa, 0x6a, 0xa7, 0x55, 0x48, 0x09, 0x9d,
0xcc, 0x37, 0xd7, 0xf0, 0x34, 0x25, 0xe0, 0xc3 },
};
int mbedtls_pkcs5_self_test( int verbose )
{
mbedtls_md_context_t sha1_ctx;
const mbedtls_md_info_t *info_sha1;
int ret, i;
unsigned char key[64];
mbedtls_md_init( &sha1_ctx );
info_sha1 = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 );
if( info_sha1 == NULL )
{
ret = 1;
goto exit;
}
if( ( ret = mbedtls_md_setup( &sha1_ctx, info_sha1, 1 ) ) != 0 )
{
ret = 1;
goto exit;
}
for( i = 0; i < MAX_TESTS; i++ )
{
if( verbose != 0 )
mbedtls_printf( " PBKDF2 (SHA1) #%d: ", i );
ret = mbedtls_pkcs5_pbkdf2_hmac( &sha1_ctx, password[i], plen[i], salt[i],
slen[i], it_cnt[i], key_len[i], key );
if( ret != 0 ||
memcmp( result_key[i], key, key_len[i] ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto exit;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
exit:
mbedtls_md_free( &sha1_ctx );
return( ret );
}
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_PKCS5_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/pkcs5.c | C | apache-2.0 | 11,884 |
/*
* Public Key layer for parsing key files and structures
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PK_PARSE_C)
#include "mbedtls/pk.h"
#include "mbedtls/asn1.h"
#include "mbedtls/oid.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_RSA_C)
#include "mbedtls/rsa.h"
#endif
#if defined(MBEDTLS_ECP_C)
#include "mbedtls/ecp.h"
#endif
#if defined(MBEDTLS_ECDSA_C)
#include "mbedtls/ecdsa.h"
#endif
#if defined(MBEDTLS_PEM_PARSE_C)
#include "mbedtls/pem.h"
#endif
#if defined(MBEDTLS_PKCS5_C)
#include "mbedtls/pkcs5.h"
#endif
#if defined(MBEDTLS_PKCS12_C)
#include "mbedtls/pkcs12.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
/* Parameter validation macros based on platform_util.h */
#define PK_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_PK_BAD_INPUT_DATA )
#define PK_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
#if defined(MBEDTLS_FS_IO)
/*
* Load all data from a file into a given buffer.
*
* The file is expected to contain either PEM or DER encoded data.
* A terminating null byte is always appended. It is included in the announced
* length only if the data looks like it is PEM encoded.
*/
int mbedtls_pk_load_file( const char *path, unsigned char **buf, size_t *n )
{
FILE *f;
long size;
PK_VALIDATE_RET( path != NULL );
PK_VALIDATE_RET( buf != NULL );
PK_VALIDATE_RET( n != NULL );
if( ( f = fopen( path, "rb" ) ) == NULL )
return( MBEDTLS_ERR_PK_FILE_IO_ERROR );
fseek( f, 0, SEEK_END );
if( ( size = ftell( f ) ) == -1 )
{
fclose( f );
return( MBEDTLS_ERR_PK_FILE_IO_ERROR );
}
fseek( f, 0, SEEK_SET );
*n = (size_t) size;
if( *n + 1 == 0 ||
( *buf = mbedtls_calloc( 1, *n + 1 ) ) == NULL )
{
fclose( f );
return( MBEDTLS_ERR_PK_ALLOC_FAILED );
}
if( fread( *buf, 1, *n, f ) != *n )
{
fclose( f );
mbedtls_platform_zeroize( *buf, *n );
mbedtls_free( *buf );
return( MBEDTLS_ERR_PK_FILE_IO_ERROR );
}
fclose( f );
(*buf)[*n] = '\0';
if( strstr( (const char *) *buf, "-----BEGIN " ) != NULL )
++*n;
return( 0 );
}
/*
* Load and parse a private key
*/
int mbedtls_pk_parse_keyfile( mbedtls_pk_context *ctx,
const char *path, const char *pwd )
{
int ret;
size_t n;
unsigned char *buf;
PK_VALIDATE_RET( ctx != NULL );
PK_VALIDATE_RET( path != NULL );
if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 )
return( ret );
if( pwd == NULL )
ret = mbedtls_pk_parse_key( ctx, buf, n, NULL, 0 );
else
ret = mbedtls_pk_parse_key( ctx, buf, n,
(const unsigned char *) pwd, strlen( pwd ) );
mbedtls_platform_zeroize( buf, n );
mbedtls_free( buf );
return( ret );
}
/*
* Load and parse a public key
*/
int mbedtls_pk_parse_public_keyfile( mbedtls_pk_context *ctx, const char *path )
{
int ret;
size_t n;
unsigned char *buf;
PK_VALIDATE_RET( ctx != NULL );
PK_VALIDATE_RET( path != NULL );
if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 )
return( ret );
ret = mbedtls_pk_parse_public_key( ctx, buf, n );
mbedtls_platform_zeroize( buf, n );
mbedtls_free( buf );
return( ret );
}
#endif /* MBEDTLS_FS_IO */
#if defined(MBEDTLS_ECP_C)
/* Minimally parse an ECParameters buffer to and mbedtls_asn1_buf
*
* ECParameters ::= CHOICE {
* namedCurve OBJECT IDENTIFIER
* specifiedCurve SpecifiedECDomain -- = SEQUENCE { ... }
* -- implicitCurve NULL
* }
*/
static int pk_get_ecparams( unsigned char **p, const unsigned char *end,
mbedtls_asn1_buf *params )
{
int ret;
if ( end - *p < 1 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_OUT_OF_DATA );
/* Tag may be either OID or SEQUENCE */
params->tag = **p;
if( params->tag != MBEDTLS_ASN1_OID
#if defined(MBEDTLS_PK_PARSE_EC_EXTENDED)
&& params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE )
#endif
)
{
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
}
if( ( ret = mbedtls_asn1_get_tag( p, end, ¶ms->len, params->tag ) ) != 0 )
{
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
}
params->p = *p;
*p += params->len;
if( *p != end )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
#if defined(MBEDTLS_PK_PARSE_EC_EXTENDED)
/*
* Parse a SpecifiedECDomain (SEC 1 C.2) and (mostly) fill the group with it.
* WARNING: the resulting group should only be used with
* pk_group_id_from_specified(), since its base point may not be set correctly
* if it was encoded compressed.
*
* SpecifiedECDomain ::= SEQUENCE {
* version SpecifiedECDomainVersion(ecdpVer1 | ecdpVer2 | ecdpVer3, ...),
* fieldID FieldID {{FieldTypes}},
* curve Curve,
* base ECPoint,
* order INTEGER,
* cofactor INTEGER OPTIONAL,
* hash HashAlgorithm OPTIONAL,
* ...
* }
*
* We only support prime-field as field type, and ignore hash and cofactor.
*/
static int pk_group_from_specified( const mbedtls_asn1_buf *params, mbedtls_ecp_group *grp )
{
int ret;
unsigned char *p = params->p;
const unsigned char * const end = params->p + params->len;
const unsigned char *end_field, *end_curve;
size_t len;
int ver;
/* SpecifiedECDomainVersion ::= INTEGER { 1, 2, 3 } */
if( ( ret = mbedtls_asn1_get_int( &p, end, &ver ) ) != 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
if( ver < 1 || ver > 3 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT );
/*
* FieldID { FIELD-ID:IOSet } ::= SEQUENCE { -- Finite field
* fieldType FIELD-ID.&id({IOSet}),
* parameters FIELD-ID.&Type({IOSet}{@fieldType})
* }
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
return( ret );
end_field = p + len;
/*
* FIELD-ID ::= TYPE-IDENTIFIER
* FieldTypes FIELD-ID ::= {
* { Prime-p IDENTIFIED BY prime-field } |
* { Characteristic-two IDENTIFIED BY characteristic-two-field }
* }
* prime-field OBJECT IDENTIFIER ::= { id-fieldType 1 }
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end_field, &len, MBEDTLS_ASN1_OID ) ) != 0 )
return( ret );
if( len != MBEDTLS_OID_SIZE( MBEDTLS_OID_ANSI_X9_62_PRIME_FIELD ) ||
memcmp( p, MBEDTLS_OID_ANSI_X9_62_PRIME_FIELD, len ) != 0 )
{
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
}
p += len;
/* Prime-p ::= INTEGER -- Field of size p. */
if( ( ret = mbedtls_asn1_get_mpi( &p, end_field, &grp->P ) ) != 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
grp->pbits = mbedtls_mpi_bitlen( &grp->P );
if( p != end_field )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
/*
* Curve ::= SEQUENCE {
* a FieldElement,
* b FieldElement,
* seed BIT STRING OPTIONAL
* -- Shall be present if used in SpecifiedECDomain
* -- with version equal to ecdpVer2 or ecdpVer3
* }
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
return( ret );
end_curve = p + len;
/*
* FieldElement ::= OCTET STRING
* containing an integer in the case of a prime field
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end_curve, &len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 ||
( ret = mbedtls_mpi_read_binary( &grp->A, p, len ) ) != 0 )
{
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
}
p += len;
if( ( ret = mbedtls_asn1_get_tag( &p, end_curve, &len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 ||
( ret = mbedtls_mpi_read_binary( &grp->B, p, len ) ) != 0 )
{
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
}
p += len;
/* Ignore seed BIT STRING OPTIONAL */
if( ( ret = mbedtls_asn1_get_tag( &p, end_curve, &len, MBEDTLS_ASN1_BIT_STRING ) ) == 0 )
p += len;
if( p != end_curve )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
/*
* ECPoint ::= OCTET STRING
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
if( ( ret = mbedtls_ecp_point_read_binary( grp, &grp->G,
( const unsigned char *) p, len ) ) != 0 )
{
/*
* If we can't read the point because it's compressed, cheat by
* reading only the X coordinate and the parity bit of Y.
*/
if( ret != MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE ||
( p[0] != 0x02 && p[0] != 0x03 ) ||
len != mbedtls_mpi_size( &grp->P ) + 1 ||
mbedtls_mpi_read_binary( &grp->G.X, p + 1, len - 1 ) != 0 ||
mbedtls_mpi_lset( &grp->G.Y, p[0] - 2 ) != 0 ||
mbedtls_mpi_lset( &grp->G.Z, 1 ) != 0 )
{
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT );
}
}
p += len;
/*
* order INTEGER
*/
if( ( ret = mbedtls_asn1_get_mpi( &p, end, &grp->N ) ) != 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
grp->nbits = mbedtls_mpi_bitlen( &grp->N );
/*
* Allow optional elements by purposefully not enforcing p == end here.
*/
return( 0 );
}
/*
* Find the group id associated with an (almost filled) group as generated by
* pk_group_from_specified(), or return an error if unknown.
*/
static int pk_group_id_from_group( const mbedtls_ecp_group *grp, mbedtls_ecp_group_id *grp_id )
{
int ret = 0;
mbedtls_ecp_group ref;
const mbedtls_ecp_group_id *id;
mbedtls_ecp_group_init( &ref );
for( id = mbedtls_ecp_grp_id_list(); *id != MBEDTLS_ECP_DP_NONE; id++ )
{
/* Load the group associated to that id */
mbedtls_ecp_group_free( &ref );
MBEDTLS_MPI_CHK( mbedtls_ecp_group_load( &ref, *id ) );
/* Compare to the group we were given, starting with easy tests */
if( grp->pbits == ref.pbits && grp->nbits == ref.nbits &&
mbedtls_mpi_cmp_mpi( &grp->P, &ref.P ) == 0 &&
mbedtls_mpi_cmp_mpi( &grp->A, &ref.A ) == 0 &&
mbedtls_mpi_cmp_mpi( &grp->B, &ref.B ) == 0 &&
mbedtls_mpi_cmp_mpi( &grp->N, &ref.N ) == 0 &&
mbedtls_mpi_cmp_mpi( &grp->G.X, &ref.G.X ) == 0 &&
mbedtls_mpi_cmp_mpi( &grp->G.Z, &ref.G.Z ) == 0 &&
/* For Y we may only know the parity bit, so compare only that */
mbedtls_mpi_get_bit( &grp->G.Y, 0 ) == mbedtls_mpi_get_bit( &ref.G.Y, 0 ) )
{
break;
}
}
cleanup:
mbedtls_ecp_group_free( &ref );
*grp_id = *id;
if( ret == 0 && *id == MBEDTLS_ECP_DP_NONE )
ret = MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE;
return( ret );
}
/*
* Parse a SpecifiedECDomain (SEC 1 C.2) and find the associated group ID
*/
static int pk_group_id_from_specified( const mbedtls_asn1_buf *params,
mbedtls_ecp_group_id *grp_id )
{
int ret;
mbedtls_ecp_group grp;
mbedtls_ecp_group_init( &grp );
if( ( ret = pk_group_from_specified( params, &grp ) ) != 0 )
goto cleanup;
ret = pk_group_id_from_group( &grp, grp_id );
cleanup:
mbedtls_ecp_group_free( &grp );
return( ret );
}
#endif /* MBEDTLS_PK_PARSE_EC_EXTENDED */
/*
* Use EC parameters to initialise an EC group
*
* ECParameters ::= CHOICE {
* namedCurve OBJECT IDENTIFIER
* specifiedCurve SpecifiedECDomain -- = SEQUENCE { ... }
* -- implicitCurve NULL
*/
static int pk_use_ecparams( const mbedtls_asn1_buf *params, mbedtls_ecp_group *grp )
{
int ret;
mbedtls_ecp_group_id grp_id;
if( params->tag == MBEDTLS_ASN1_OID )
{
if( mbedtls_oid_get_ec_grp( params, &grp_id ) != 0 )
return( MBEDTLS_ERR_PK_UNKNOWN_NAMED_CURVE );
}
else
{
#if defined(MBEDTLS_PK_PARSE_EC_EXTENDED)
if( ( ret = pk_group_id_from_specified( params, &grp_id ) ) != 0 )
return( ret );
#else
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT );
#endif
}
/*
* grp may already be initilialized; if so, make sure IDs match
*/
if( grp->id != MBEDTLS_ECP_DP_NONE && grp->id != grp_id )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT );
if( ( ret = mbedtls_ecp_group_load( grp, grp_id ) ) != 0 )
return( ret );
return( 0 );
}
/*
* EC public key is an EC point
*
* The caller is responsible for clearing the structure upon failure if
* desired. Take care to pass along the possible ECP_FEATURE_UNAVAILABLE
* return code of mbedtls_ecp_point_read_binary() and leave p in a usable state.
*/
static int pk_get_ecpubkey( unsigned char **p, const unsigned char *end,
mbedtls_ecp_keypair *key )
{
int ret;
if( ( ret = mbedtls_ecp_point_read_binary( &key->grp, &key->Q,
(const unsigned char *) *p, end - *p ) ) == 0 )
{
ret = mbedtls_ecp_check_pubkey( &key->grp, &key->Q );
}
/*
* We know mbedtls_ecp_point_read_binary consumed all bytes or failed
*/
*p = (unsigned char *) end;
return( ret );
}
#endif /* MBEDTLS_ECP_C */
#if defined(MBEDTLS_RSA_C)
/*
* RSAPublicKey ::= SEQUENCE {
* modulus INTEGER, -- n
* publicExponent INTEGER -- e
* }
*/
static int pk_get_rsapubkey( unsigned char **p,
const unsigned char *end,
mbedtls_rsa_context *rsa )
{
int ret;
size_t len;
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
return( MBEDTLS_ERR_PK_INVALID_PUBKEY + ret );
if( *p + len != end )
return( MBEDTLS_ERR_PK_INVALID_PUBKEY +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
/* Import N */
if( ( ret = mbedtls_asn1_get_tag( p, end, &len, MBEDTLS_ASN1_INTEGER ) ) != 0 )
return( MBEDTLS_ERR_PK_INVALID_PUBKEY + ret );
if( ( ret = mbedtls_rsa_import_raw( rsa, *p, len, NULL, 0, NULL, 0,
NULL, 0, NULL, 0 ) ) != 0 )
return( MBEDTLS_ERR_PK_INVALID_PUBKEY );
*p += len;
/* Import E */
if( ( ret = mbedtls_asn1_get_tag( p, end, &len, MBEDTLS_ASN1_INTEGER ) ) != 0 )
return( MBEDTLS_ERR_PK_INVALID_PUBKEY + ret );
if( ( ret = mbedtls_rsa_import_raw( rsa, NULL, 0, NULL, 0, NULL, 0,
NULL, 0, *p, len ) ) != 0 )
return( MBEDTLS_ERR_PK_INVALID_PUBKEY );
*p += len;
if( mbedtls_rsa_complete( rsa ) != 0 ||
mbedtls_rsa_check_pubkey( rsa ) != 0 )
{
return( MBEDTLS_ERR_PK_INVALID_PUBKEY );
}
if( *p != end )
return( MBEDTLS_ERR_PK_INVALID_PUBKEY +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
#endif /* MBEDTLS_RSA_C */
/* Get a PK algorithm identifier
*
* AlgorithmIdentifier ::= SEQUENCE {
* algorithm OBJECT IDENTIFIER,
* parameters ANY DEFINED BY algorithm OPTIONAL }
*/
static int pk_get_pk_alg( unsigned char **p,
const unsigned char *end,
mbedtls_pk_type_t *pk_alg, mbedtls_asn1_buf *params )
{
int ret;
mbedtls_asn1_buf alg_oid;
memset( params, 0, sizeof(mbedtls_asn1_buf) );
if( ( ret = mbedtls_asn1_get_alg( p, end, &alg_oid, params ) ) != 0 )
return( MBEDTLS_ERR_PK_INVALID_ALG + ret );
if( mbedtls_oid_get_pk_alg( &alg_oid, pk_alg ) != 0 )
return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG );
/*
* No parameters with RSA (only for EC)
*/
if( *pk_alg == MBEDTLS_PK_RSA &&
( ( params->tag != MBEDTLS_ASN1_NULL && params->tag != 0 ) ||
params->len != 0 ) )
{
return( MBEDTLS_ERR_PK_INVALID_ALG );
}
return( 0 );
}
/*
* SubjectPublicKeyInfo ::= SEQUENCE {
* algorithm AlgorithmIdentifier,
* subjectPublicKey BIT STRING }
*/
int mbedtls_pk_parse_subpubkey( unsigned char **p, const unsigned char *end,
mbedtls_pk_context *pk )
{
int ret;
size_t len;
mbedtls_asn1_buf alg_params;
mbedtls_pk_type_t pk_alg = MBEDTLS_PK_NONE;
const mbedtls_pk_info_t *pk_info;
PK_VALIDATE_RET( p != NULL );
PK_VALIDATE_RET( *p != NULL );
PK_VALIDATE_RET( end != NULL );
PK_VALIDATE_RET( pk != NULL );
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
}
end = *p + len;
if( ( ret = pk_get_pk_alg( p, end, &pk_alg, &alg_params ) ) != 0 )
return( ret );
if( ( ret = mbedtls_asn1_get_bitstring_null( p, end, &len ) ) != 0 )
return( MBEDTLS_ERR_PK_INVALID_PUBKEY + ret );
if( *p + len != end )
return( MBEDTLS_ERR_PK_INVALID_PUBKEY +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
if( ( pk_info = mbedtls_pk_info_from_type( pk_alg ) ) == NULL )
return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG );
if( ( ret = mbedtls_pk_setup( pk, pk_info ) ) != 0 )
return( ret );
#if defined(MBEDTLS_RSA_C)
if( pk_alg == MBEDTLS_PK_RSA )
{
ret = pk_get_rsapubkey( p, end, mbedtls_pk_rsa( *pk ) );
} else
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
if( pk_alg == MBEDTLS_PK_ECKEY_DH || pk_alg == MBEDTLS_PK_ECKEY )
{
ret = pk_use_ecparams( &alg_params, &mbedtls_pk_ec( *pk )->grp );
if( ret == 0 )
ret = pk_get_ecpubkey( p, end, mbedtls_pk_ec( *pk ) );
} else
#endif /* MBEDTLS_ECP_C */
ret = MBEDTLS_ERR_PK_UNKNOWN_PK_ALG;
if( ret == 0 && *p != end )
ret = MBEDTLS_ERR_PK_INVALID_PUBKEY
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH;
if( ret != 0 )
mbedtls_pk_free( pk );
return( ret );
}
#if defined(MBEDTLS_RSA_C)
/*
* Parse a PKCS#1 encoded private RSA key
*/
static int pk_parse_key_pkcs1_der( mbedtls_rsa_context *rsa,
const unsigned char *key,
size_t keylen )
{
int ret, version;
size_t len;
unsigned char *p, *end;
mbedtls_mpi T;
mbedtls_mpi_init( &T );
p = (unsigned char *) key;
end = p + keylen;
/*
* This function parses the RSAPrivateKey (PKCS#1)
*
* RSAPrivateKey ::= SEQUENCE {
* version Version,
* modulus INTEGER, -- n
* publicExponent INTEGER, -- e
* privateExponent INTEGER, -- d
* prime1 INTEGER, -- p
* prime2 INTEGER, -- q
* exponent1 INTEGER, -- d mod (p-1)
* exponent2 INTEGER, -- d mod (q-1)
* coefficient INTEGER, -- (inverse of q) mod p
* otherPrimeInfos OtherPrimeInfos OPTIONAL
* }
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
}
end = p + len;
if( ( ret = mbedtls_asn1_get_int( &p, end, &version ) ) != 0 )
{
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
}
if( version != 0 )
{
return( MBEDTLS_ERR_PK_KEY_INVALID_VERSION );
}
/* Import N */
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_INTEGER ) ) != 0 ||
( ret = mbedtls_rsa_import_raw( rsa, p, len, NULL, 0, NULL, 0,
NULL, 0, NULL, 0 ) ) != 0 )
goto cleanup;
p += len;
/* Import E */
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_INTEGER ) ) != 0 ||
( ret = mbedtls_rsa_import_raw( rsa, NULL, 0, NULL, 0, NULL, 0,
NULL, 0, p, len ) ) != 0 )
goto cleanup;
p += len;
/* Import D */
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_INTEGER ) ) != 0 ||
( ret = mbedtls_rsa_import_raw( rsa, NULL, 0, NULL, 0, NULL, 0,
p, len, NULL, 0 ) ) != 0 )
goto cleanup;
p += len;
/* Import P */
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_INTEGER ) ) != 0 ||
( ret = mbedtls_rsa_import_raw( rsa, NULL, 0, p, len, NULL, 0,
NULL, 0, NULL, 0 ) ) != 0 )
goto cleanup;
p += len;
/* Import Q */
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_INTEGER ) ) != 0 ||
( ret = mbedtls_rsa_import_raw( rsa, NULL, 0, NULL, 0, p, len,
NULL, 0, NULL, 0 ) ) != 0 )
goto cleanup;
p += len;
/* Complete the RSA private key */
if( ( ret = mbedtls_rsa_complete( rsa ) ) != 0 )
goto cleanup;
/* Check optional parameters */
if( ( ret = mbedtls_asn1_get_mpi( &p, end, &T ) ) != 0 ||
( ret = mbedtls_asn1_get_mpi( &p, end, &T ) ) != 0 ||
( ret = mbedtls_asn1_get_mpi( &p, end, &T ) ) != 0 )
goto cleanup;
if( p != end )
{
ret = MBEDTLS_ERR_PK_KEY_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH ;
}
cleanup:
mbedtls_mpi_free( &T );
if( ret != 0 )
{
/* Wrap error code if it's coming from a lower level */
if( ( ret & 0xff80 ) == 0 )
ret = MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret;
else
ret = MBEDTLS_ERR_PK_KEY_INVALID_FORMAT;
mbedtls_rsa_free( rsa );
}
return( ret );
}
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
/*
* Parse a SEC1 encoded private EC key
*/
static int pk_parse_key_sec1_der( mbedtls_ecp_keypair *eck,
const unsigned char *key,
size_t keylen )
{
int ret;
int version, pubkey_done;
size_t len;
mbedtls_asn1_buf params;
unsigned char *p = (unsigned char *) key;
unsigned char *end = p + keylen;
unsigned char *end2;
/*
* RFC 5915, or SEC1 Appendix C.4
*
* ECPrivateKey ::= SEQUENCE {
* version INTEGER { ecPrivkeyVer1(1) } (ecPrivkeyVer1),
* privateKey OCTET STRING,
* parameters [0] ECParameters {{ NamedCurve }} OPTIONAL,
* publicKey [1] BIT STRING OPTIONAL
* }
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
}
end = p + len;
if( ( ret = mbedtls_asn1_get_int( &p, end, &version ) ) != 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
if( version != 1 )
return( MBEDTLS_ERR_PK_KEY_INVALID_VERSION );
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
if( ( ret = mbedtls_mpi_read_binary( &eck->d, p, len ) ) != 0 )
{
mbedtls_ecp_keypair_free( eck );
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
}
p += len;
pubkey_done = 0;
if( p != end )
{
/*
* Is 'parameters' present?
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 0 ) ) == 0 )
{
if( ( ret = pk_get_ecparams( &p, p + len, ¶ms) ) != 0 ||
( ret = pk_use_ecparams( ¶ms, &eck->grp ) ) != 0 )
{
mbedtls_ecp_keypair_free( eck );
return( ret );
}
}
else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
{
mbedtls_ecp_keypair_free( eck );
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
}
}
if( p != end )
{
/*
* Is 'publickey' present? If not, or if we can't read it (eg because it
* is compressed), create it from the private key.
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 1 ) ) == 0 )
{
end2 = p + len;
if( ( ret = mbedtls_asn1_get_bitstring_null( &p, end2, &len ) ) != 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
if( p + len != end2 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
if( ( ret = pk_get_ecpubkey( &p, end2, eck ) ) == 0 )
pubkey_done = 1;
else
{
/*
* The only acceptable failure mode of pk_get_ecpubkey() above
* is if the point format is not recognized.
*/
if( ret != MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT );
}
}
else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
{
mbedtls_ecp_keypair_free( eck );
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
}
}
if( ! pubkey_done &&
( ret = mbedtls_ecp_mul( &eck->grp, &eck->Q, &eck->d, &eck->grp.G,
NULL, NULL ) ) != 0 )
{
mbedtls_ecp_keypair_free( eck );
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
}
if( ( ret = mbedtls_ecp_check_privkey( &eck->grp, &eck->d ) ) != 0 )
{
mbedtls_ecp_keypair_free( eck );
return( ret );
}
return( 0 );
}
#endif /* MBEDTLS_ECP_C */
/*
* Parse an unencrypted PKCS#8 encoded private key
*
* Notes:
*
* - This function does not own the key buffer. It is the
* responsibility of the caller to take care of zeroizing
* and freeing it after use.
*
* - The function is responsible for freeing the provided
* PK context on failure.
*
*/
static int pk_parse_key_pkcs8_unencrypted_der(
mbedtls_pk_context *pk,
const unsigned char* key,
size_t keylen )
{
int ret, version;
size_t len;
mbedtls_asn1_buf params;
unsigned char *p = (unsigned char *) key;
unsigned char *end = p + keylen;
mbedtls_pk_type_t pk_alg = MBEDTLS_PK_NONE;
const mbedtls_pk_info_t *pk_info;
/*
* This function parses the PrivateKeyInfo object (PKCS#8 v1.2 = RFC 5208)
*
* PrivateKeyInfo ::= SEQUENCE {
* version Version,
* privateKeyAlgorithm PrivateKeyAlgorithmIdentifier,
* privateKey PrivateKey,
* attributes [0] IMPLICIT Attributes OPTIONAL }
*
* Version ::= INTEGER
* PrivateKeyAlgorithmIdentifier ::= AlgorithmIdentifier
* PrivateKey ::= OCTET STRING
*
* The PrivateKey OCTET STRING is a SEC1 ECPrivateKey
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
}
end = p + len;
if( ( ret = mbedtls_asn1_get_int( &p, end, &version ) ) != 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
if( version != 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_VERSION + ret );
if( ( ret = pk_get_pk_alg( &p, end, &pk_alg, ¶ms ) ) != 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
if( len < 1 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_OUT_OF_DATA );
if( ( pk_info = mbedtls_pk_info_from_type( pk_alg ) ) == NULL )
return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG );
if( ( ret = mbedtls_pk_setup( pk, pk_info ) ) != 0 )
return( ret );
#if defined(MBEDTLS_RSA_C)
if( pk_alg == MBEDTLS_PK_RSA )
{
if( ( ret = pk_parse_key_pkcs1_der( mbedtls_pk_rsa( *pk ), p, len ) ) != 0 )
{
mbedtls_pk_free( pk );
return( ret );
}
} else
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
if( pk_alg == MBEDTLS_PK_ECKEY || pk_alg == MBEDTLS_PK_ECKEY_DH )
{
if( ( ret = pk_use_ecparams( ¶ms, &mbedtls_pk_ec( *pk )->grp ) ) != 0 ||
( ret = pk_parse_key_sec1_der( mbedtls_pk_ec( *pk ), p, len ) ) != 0 )
{
mbedtls_pk_free( pk );
return( ret );
}
} else
#endif /* MBEDTLS_ECP_C */
return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG );
return( 0 );
}
/*
* Parse an encrypted PKCS#8 encoded private key
*
* To save space, the decryption happens in-place on the given key buffer.
* Also, while this function may modify the keybuffer, it doesn't own it,
* and instead it is the responsibility of the caller to zeroize and properly
* free it after use.
*
*/
#if defined(MBEDTLS_PKCS12_C) || defined(MBEDTLS_PKCS5_C)
static int pk_parse_key_pkcs8_encrypted_der(
mbedtls_pk_context *pk,
unsigned char *key, size_t keylen,
const unsigned char *pwd, size_t pwdlen )
{
int ret, decrypted = 0;
size_t len;
unsigned char *buf;
unsigned char *p, *end;
mbedtls_asn1_buf pbe_alg_oid, pbe_params;
#if defined(MBEDTLS_PKCS12_C)
mbedtls_cipher_type_t cipher_alg;
mbedtls_md_type_t md_alg;
#endif
p = key;
end = p + keylen;
if( pwdlen == 0 )
return( MBEDTLS_ERR_PK_PASSWORD_REQUIRED );
/*
* This function parses the EncryptedPrivateKeyInfo object (PKCS#8)
*
* EncryptedPrivateKeyInfo ::= SEQUENCE {
* encryptionAlgorithm EncryptionAlgorithmIdentifier,
* encryptedData EncryptedData
* }
*
* EncryptionAlgorithmIdentifier ::= AlgorithmIdentifier
*
* EncryptedData ::= OCTET STRING
*
* The EncryptedData OCTET STRING is a PKCS#8 PrivateKeyInfo
*
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
}
end = p + len;
if( ( ret = mbedtls_asn1_get_alg( &p, end, &pbe_alg_oid, &pbe_params ) ) != 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, MBEDTLS_ASN1_OCTET_STRING ) ) != 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT + ret );
buf = p;
/*
* Decrypt EncryptedData with appropriate PBE
*/
#if defined(MBEDTLS_PKCS12_C)
if( mbedtls_oid_get_pkcs12_pbe_alg( &pbe_alg_oid, &md_alg, &cipher_alg ) == 0 )
{
if( ( ret = mbedtls_pkcs12_pbe( &pbe_params, MBEDTLS_PKCS12_PBE_DECRYPT,
cipher_alg, md_alg,
pwd, pwdlen, p, len, buf ) ) != 0 )
{
if( ret == MBEDTLS_ERR_PKCS12_PASSWORD_MISMATCH )
return( MBEDTLS_ERR_PK_PASSWORD_MISMATCH );
return( ret );
}
decrypted = 1;
}
else if( MBEDTLS_OID_CMP( MBEDTLS_OID_PKCS12_PBE_SHA1_RC4_128, &pbe_alg_oid ) == 0 )
{
if( ( ret = mbedtls_pkcs12_pbe_sha1_rc4_128( &pbe_params,
MBEDTLS_PKCS12_PBE_DECRYPT,
pwd, pwdlen,
p, len, buf ) ) != 0 )
{
return( ret );
}
// Best guess for password mismatch when using RC4. If first tag is
// not MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE
//
if( *buf != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) )
return( MBEDTLS_ERR_PK_PASSWORD_MISMATCH );
decrypted = 1;
}
else
#endif /* MBEDTLS_PKCS12_C */
#if defined(MBEDTLS_PKCS5_C)
if( MBEDTLS_OID_CMP( MBEDTLS_OID_PKCS5_PBES2, &pbe_alg_oid ) == 0 )
{
if( ( ret = mbedtls_pkcs5_pbes2( &pbe_params, MBEDTLS_PKCS5_DECRYPT, pwd, pwdlen,
p, len, buf ) ) != 0 )
{
if( ret == MBEDTLS_ERR_PKCS5_PASSWORD_MISMATCH )
return( MBEDTLS_ERR_PK_PASSWORD_MISMATCH );
return( ret );
}
decrypted = 1;
}
else
#endif /* MBEDTLS_PKCS5_C */
{
((void) pwd);
}
if( decrypted == 0 )
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
return( pk_parse_key_pkcs8_unencrypted_der( pk, buf, len ) );
}
#endif /* MBEDTLS_PKCS12_C || MBEDTLS_PKCS5_C */
/*
* Parse a private key
*/
int mbedtls_pk_parse_key( mbedtls_pk_context *pk,
const unsigned char *key, size_t keylen,
const unsigned char *pwd, size_t pwdlen )
{
int ret;
const mbedtls_pk_info_t *pk_info;
#if defined(MBEDTLS_PEM_PARSE_C)
size_t len;
mbedtls_pem_context pem;
#endif
PK_VALIDATE_RET( pk != NULL );
if( keylen == 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT );
PK_VALIDATE_RET( key != NULL );
#if defined(MBEDTLS_PEM_PARSE_C)
mbedtls_pem_init( &pem );
#if defined(MBEDTLS_RSA_C)
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
if( key[keylen - 1] != '\0' )
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
else
ret = mbedtls_pem_read_buffer( &pem,
"-----BEGIN RSA PRIVATE KEY-----",
"-----END RSA PRIVATE KEY-----",
key, pwd, pwdlen, &len );
if( ret == 0 )
{
pk_info = mbedtls_pk_info_from_type( MBEDTLS_PK_RSA );
if( ( ret = mbedtls_pk_setup( pk, pk_info ) ) != 0 ||
( ret = pk_parse_key_pkcs1_der( mbedtls_pk_rsa( *pk ),
pem.buf, pem.buflen ) ) != 0 )
{
mbedtls_pk_free( pk );
}
mbedtls_pem_free( &pem );
return( ret );
}
else if( ret == MBEDTLS_ERR_PEM_PASSWORD_MISMATCH )
return( MBEDTLS_ERR_PK_PASSWORD_MISMATCH );
else if( ret == MBEDTLS_ERR_PEM_PASSWORD_REQUIRED )
return( MBEDTLS_ERR_PK_PASSWORD_REQUIRED );
else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
return( ret );
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
if( key[keylen - 1] != '\0' )
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
else
ret = mbedtls_pem_read_buffer( &pem,
"-----BEGIN EC PRIVATE KEY-----",
"-----END EC PRIVATE KEY-----",
key, pwd, pwdlen, &len );
if( ret == 0 )
{
pk_info = mbedtls_pk_info_from_type( MBEDTLS_PK_ECKEY );
if( ( ret = mbedtls_pk_setup( pk, pk_info ) ) != 0 ||
( ret = pk_parse_key_sec1_der( mbedtls_pk_ec( *pk ),
pem.buf, pem.buflen ) ) != 0 )
{
mbedtls_pk_free( pk );
}
mbedtls_pem_free( &pem );
return( ret );
}
else if( ret == MBEDTLS_ERR_PEM_PASSWORD_MISMATCH )
return( MBEDTLS_ERR_PK_PASSWORD_MISMATCH );
else if( ret == MBEDTLS_ERR_PEM_PASSWORD_REQUIRED )
return( MBEDTLS_ERR_PK_PASSWORD_REQUIRED );
else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
return( ret );
#endif /* MBEDTLS_ECP_C */
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
if( key[keylen - 1] != '\0' )
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
else
ret = mbedtls_pem_read_buffer( &pem,
"-----BEGIN PRIVATE KEY-----",
"-----END PRIVATE KEY-----",
key, NULL, 0, &len );
if( ret == 0 )
{
if( ( ret = pk_parse_key_pkcs8_unencrypted_der( pk,
pem.buf, pem.buflen ) ) != 0 )
{
mbedtls_pk_free( pk );
}
mbedtls_pem_free( &pem );
return( ret );
}
else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
return( ret );
#if defined(MBEDTLS_PKCS12_C) || defined(MBEDTLS_PKCS5_C)
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
if( key[keylen - 1] != '\0' )
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
else
ret = mbedtls_pem_read_buffer( &pem,
"-----BEGIN ENCRYPTED PRIVATE KEY-----",
"-----END ENCRYPTED PRIVATE KEY-----",
key, NULL, 0, &len );
if( ret == 0 )
{
if( ( ret = pk_parse_key_pkcs8_encrypted_der( pk,
pem.buf, pem.buflen,
pwd, pwdlen ) ) != 0 )
{
mbedtls_pk_free( pk );
}
mbedtls_pem_free( &pem );
return( ret );
}
else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
return( ret );
#endif /* MBEDTLS_PKCS12_C || MBEDTLS_PKCS5_C */
#else
((void) pwd);
((void) pwdlen);
#endif /* MBEDTLS_PEM_PARSE_C */
/*
* At this point we only know it's not a PEM formatted key. Could be any
* of the known DER encoded private key formats
*
* We try the different DER format parsers to see if one passes without
* error
*/
#if defined(MBEDTLS_PKCS12_C) || defined(MBEDTLS_PKCS5_C)
{
unsigned char *key_copy;
if( ( key_copy = mbedtls_calloc( 1, keylen ) ) == NULL )
return( MBEDTLS_ERR_PK_ALLOC_FAILED );
memcpy( key_copy, key, keylen );
ret = pk_parse_key_pkcs8_encrypted_der( pk, key_copy, keylen,
pwd, pwdlen );
mbedtls_platform_zeroize( key_copy, keylen );
mbedtls_free( key_copy );
}
if( ret == 0 )
return( 0 );
mbedtls_pk_free( pk );
mbedtls_pk_init( pk );
if( ret == MBEDTLS_ERR_PK_PASSWORD_MISMATCH )
{
return( ret );
}
#endif /* MBEDTLS_PKCS12_C || MBEDTLS_PKCS5_C */
if( ( ret = pk_parse_key_pkcs8_unencrypted_der( pk, key, keylen ) ) == 0 )
return( 0 );
mbedtls_pk_free( pk );
mbedtls_pk_init( pk );
#if defined(MBEDTLS_RSA_C)
pk_info = mbedtls_pk_info_from_type( MBEDTLS_PK_RSA );
if( mbedtls_pk_setup( pk, pk_info ) == 0 &&
pk_parse_key_pkcs1_der( mbedtls_pk_rsa( *pk ), key, keylen ) == 0 )
{
return( 0 );
}
mbedtls_pk_free( pk );
mbedtls_pk_init( pk );
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
pk_info = mbedtls_pk_info_from_type( MBEDTLS_PK_ECKEY );
if( mbedtls_pk_setup( pk, pk_info ) == 0 &&
pk_parse_key_sec1_der( mbedtls_pk_ec( *pk ),
key, keylen ) == 0 )
{
return( 0 );
}
mbedtls_pk_free( pk );
#endif /* MBEDTLS_ECP_C */
/* If MBEDTLS_RSA_C is defined but MBEDTLS_ECP_C isn't,
* it is ok to leave the PK context initialized but not
* freed: It is the caller's responsibility to call pk_init()
* before calling this function, and to call pk_free()
* when it fails. If MBEDTLS_ECP_C is defined but MBEDTLS_RSA_C
* isn't, this leads to mbedtls_pk_free() being called
* twice, once here and once by the caller, but this is
* also ok and in line with the mbedtls_pk_free() calls
* on failed PEM parsing attempts. */
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT );
}
/*
* Parse a public key
*/
int mbedtls_pk_parse_public_key( mbedtls_pk_context *ctx,
const unsigned char *key, size_t keylen )
{
int ret;
unsigned char *p;
#if defined(MBEDTLS_RSA_C)
const mbedtls_pk_info_t *pk_info;
#endif
#if defined(MBEDTLS_PEM_PARSE_C)
size_t len;
mbedtls_pem_context pem;
#endif
PK_VALIDATE_RET( ctx != NULL );
if( keylen == 0 )
return( MBEDTLS_ERR_PK_KEY_INVALID_FORMAT );
PK_VALIDATE_RET( key != NULL || keylen == 0 );
#if defined(MBEDTLS_PEM_PARSE_C)
mbedtls_pem_init( &pem );
#if defined(MBEDTLS_RSA_C)
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
if( key[keylen - 1] != '\0' )
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
else
ret = mbedtls_pem_read_buffer( &pem,
"-----BEGIN RSA PUBLIC KEY-----",
"-----END RSA PUBLIC KEY-----",
key, NULL, 0, &len );
if( ret == 0 )
{
p = pem.buf;
if( ( pk_info = mbedtls_pk_info_from_type( MBEDTLS_PK_RSA ) ) == NULL )
return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG );
if( ( ret = mbedtls_pk_setup( ctx, pk_info ) ) != 0 )
return( ret );
if ( ( ret = pk_get_rsapubkey( &p, p + pem.buflen, mbedtls_pk_rsa( *ctx ) ) ) != 0 )
mbedtls_pk_free( ctx );
mbedtls_pem_free( &pem );
return( ret );
}
else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
{
mbedtls_pem_free( &pem );
return( ret );
}
#endif /* MBEDTLS_RSA_C */
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
if( key[keylen - 1] != '\0' )
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
else
ret = mbedtls_pem_read_buffer( &pem,
"-----BEGIN PUBLIC KEY-----",
"-----END PUBLIC KEY-----",
key, NULL, 0, &len );
if( ret == 0 )
{
/*
* Was PEM encoded
*/
p = pem.buf;
ret = mbedtls_pk_parse_subpubkey( &p, p + pem.buflen, ctx );
mbedtls_pem_free( &pem );
return( ret );
}
else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
{
mbedtls_pem_free( &pem );
return( ret );
}
mbedtls_pem_free( &pem );
#endif /* MBEDTLS_PEM_PARSE_C */
#if defined(MBEDTLS_RSA_C)
if( ( pk_info = mbedtls_pk_info_from_type( MBEDTLS_PK_RSA ) ) == NULL )
return( MBEDTLS_ERR_PK_UNKNOWN_PK_ALG );
if( ( ret = mbedtls_pk_setup( ctx, pk_info ) ) != 0 )
return( ret );
p = (unsigned char *)key;
ret = pk_get_rsapubkey( &p, p + keylen, mbedtls_pk_rsa( *ctx ) );
if( ret == 0 )
{
return( ret );
}
mbedtls_pk_free( ctx );
if( ret != ( MBEDTLS_ERR_PK_INVALID_PUBKEY + MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) )
{
return( ret );
}
#endif /* MBEDTLS_RSA_C */
p = (unsigned char *) key;
ret = mbedtls_pk_parse_subpubkey( &p, p + keylen, ctx );
return( ret );
}
#endif /* MBEDTLS_PK_PARSE_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/pkparse.c | C | apache-2.0 | 44,828 |
/*
* Public Key layer for writing key files and structures
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PK_WRITE_C)
#include "mbedtls/pk.h"
#include "mbedtls/asn1write.h"
#include "mbedtls/oid.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_RSA_C)
#include "mbedtls/rsa.h"
#endif
#if defined(MBEDTLS_ECP_C)
#include "mbedtls/ecp.h"
#endif
#if defined(MBEDTLS_ECDSA_C)
#include "mbedtls/ecdsa.h"
#endif
#if defined(MBEDTLS_PEM_WRITE_C)
#include "mbedtls/pem.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
/* Parameter validation macros based on platform_util.h */
#define PK_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_PK_BAD_INPUT_DATA )
#define PK_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
#if defined(MBEDTLS_RSA_C)
/*
* RSAPublicKey ::= SEQUENCE {
* modulus INTEGER, -- n
* publicExponent INTEGER -- e
* }
*/
static int pk_write_rsa_pubkey( unsigned char **p, unsigned char *start,
mbedtls_rsa_context *rsa )
{
int ret;
size_t len = 0;
mbedtls_mpi T;
mbedtls_mpi_init( &T );
/* Export E */
if ( ( ret = mbedtls_rsa_export( rsa, NULL, NULL, NULL, NULL, &T ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( p, start, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export N */
if ( ( ret = mbedtls_rsa_export( rsa, &T, NULL, NULL, NULL, NULL ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( p, start, &T ) ) < 0 )
goto end_of_export;
len += ret;
end_of_export:
mbedtls_mpi_free( &T );
if( ret < 0 )
return( ret );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return( (int) len );
}
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
/*
* EC public key is an EC point
*/
static int pk_write_ec_pubkey( unsigned char **p, unsigned char *start,
mbedtls_ecp_keypair *ec )
{
int ret;
size_t len = 0;
unsigned char buf[MBEDTLS_ECP_MAX_PT_LEN];
if( ( ret = mbedtls_ecp_point_write_binary( &ec->grp, &ec->Q,
MBEDTLS_ECP_PF_UNCOMPRESSED,
&len, buf, sizeof( buf ) ) ) != 0 )
{
return( ret );
}
if( *p < start || (size_t)( *p - start ) < len )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*p -= len;
memcpy( *p, buf, len );
return( (int) len );
}
/*
* ECParameters ::= CHOICE {
* namedCurve OBJECT IDENTIFIER
* }
*/
static int pk_write_ec_param( unsigned char **p, unsigned char *start,
mbedtls_ecp_keypair *ec )
{
int ret;
size_t len = 0;
const char *oid;
size_t oid_len;
if( ( ret = mbedtls_oid_get_oid_by_ec_grp( ec->grp.id, &oid, &oid_len ) ) != 0 )
return( ret );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( p, start, oid, oid_len ) );
return( (int) len );
}
#endif /* MBEDTLS_ECP_C */
int mbedtls_pk_write_pubkey( unsigned char **p, unsigned char *start,
const mbedtls_pk_context *key )
{
int ret;
size_t len = 0;
PK_VALIDATE_RET( p != NULL );
PK_VALIDATE_RET( *p != NULL );
PK_VALIDATE_RET( start != NULL );
PK_VALIDATE_RET( key != NULL );
#if defined(MBEDTLS_RSA_C)
if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_RSA )
MBEDTLS_ASN1_CHK_ADD( len, pk_write_rsa_pubkey( p, start, mbedtls_pk_rsa( *key ) ) );
else
#endif
#if defined(MBEDTLS_ECP_C)
if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_ECKEY )
MBEDTLS_ASN1_CHK_ADD( len, pk_write_ec_pubkey( p, start, mbedtls_pk_ec( *key ) ) );
else
#endif
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
return( (int) len );
}
int mbedtls_pk_write_pubkey_der( mbedtls_pk_context *key, unsigned char *buf, size_t size )
{
int ret;
unsigned char *c;
size_t len = 0, par_len = 0, oid_len;
const char *oid;
PK_VALIDATE_RET( key != NULL );
if( size == 0 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
PK_VALIDATE_RET( buf != NULL );
c = buf + size;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_pk_write_pubkey( &c, buf, key ) );
if( c - buf < 1 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
/*
* SubjectPublicKeyInfo ::= SEQUENCE {
* algorithm AlgorithmIdentifier,
* subjectPublicKey BIT STRING }
*/
*--c = 0;
len += 1;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_BIT_STRING ) );
if( ( ret = mbedtls_oid_get_oid_by_pk_alg( mbedtls_pk_get_type( key ),
&oid, &oid_len ) ) != 0 )
{
return( ret );
}
#if defined(MBEDTLS_ECP_C)
if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_ECKEY )
{
MBEDTLS_ASN1_CHK_ADD( par_len, pk_write_ec_param( &c, buf, mbedtls_pk_ec( *key ) ) );
}
#endif
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( &c, buf, oid, oid_len,
par_len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return( (int) len );
}
int mbedtls_pk_write_key_der( mbedtls_pk_context *key, unsigned char *buf, size_t size )
{
int ret;
unsigned char *c;
size_t len = 0;
PK_VALIDATE_RET( key != NULL );
if( size == 0 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
PK_VALIDATE_RET( buf != NULL );
c = buf + size;
#if defined(MBEDTLS_RSA_C)
if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_RSA )
{
mbedtls_mpi T; /* Temporary holding the exported parameters */
mbedtls_rsa_context *rsa = mbedtls_pk_rsa( *key );
/*
* Export the parameters one after another to avoid simultaneous copies.
*/
mbedtls_mpi_init( &T );
/* Export QP */
if( ( ret = mbedtls_rsa_export_crt( rsa, NULL, NULL, &T ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export DQ */
if( ( ret = mbedtls_rsa_export_crt( rsa, NULL, &T, NULL ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export DP */
if( ( ret = mbedtls_rsa_export_crt( rsa, &T, NULL, NULL ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export Q */
if ( ( ret = mbedtls_rsa_export( rsa, NULL, NULL,
&T, NULL, NULL ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export P */
if ( ( ret = mbedtls_rsa_export( rsa, NULL, &T,
NULL, NULL, NULL ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export D */
if ( ( ret = mbedtls_rsa_export( rsa, NULL, NULL,
NULL, &T, NULL ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export E */
if ( ( ret = mbedtls_rsa_export( rsa, NULL, NULL,
NULL, NULL, &T ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
/* Export N */
if ( ( ret = mbedtls_rsa_export( rsa, &T, NULL,
NULL, NULL, NULL ) ) != 0 ||
( ret = mbedtls_asn1_write_mpi( &c, buf, &T ) ) < 0 )
goto end_of_export;
len += ret;
end_of_export:
mbedtls_mpi_free( &T );
if( ret < 0 )
return( ret );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf, 0 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c,
buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
}
else
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_ECKEY )
{
mbedtls_ecp_keypair *ec = mbedtls_pk_ec( *key );
size_t pub_len = 0, par_len = 0;
/*
* RFC 5915, or SEC1 Appendix C.4
*
* ECPrivateKey ::= SEQUENCE {
* version INTEGER { ecPrivkeyVer1(1) } (ecPrivkeyVer1),
* privateKey OCTET STRING,
* parameters [0] ECParameters {{ NamedCurve }} OPTIONAL,
* publicKey [1] BIT STRING OPTIONAL
* }
*/
/* publicKey */
MBEDTLS_ASN1_CHK_ADD( pub_len, pk_write_ec_pubkey( &c, buf, ec ) );
if( c - buf < 1 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--c = 0;
pub_len += 1;
MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_len( &c, buf, pub_len ) );
MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_BIT_STRING ) );
MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_len( &c, buf, pub_len ) );
MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_asn1_write_tag( &c, buf,
MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 1 ) );
len += pub_len;
/* parameters */
MBEDTLS_ASN1_CHK_ADD( par_len, pk_write_ec_param( &c, buf, ec ) );
MBEDTLS_ASN1_CHK_ADD( par_len, mbedtls_asn1_write_len( &c, buf, par_len ) );
MBEDTLS_ASN1_CHK_ADD( par_len, mbedtls_asn1_write_tag( &c, buf,
MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 0 ) );
len += par_len;
/* privateKey: write as MPI then fix tag */
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, buf, &ec->d ) );
*c = MBEDTLS_ASN1_OCTET_STRING;
/* version */
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf, 1 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
}
else
#endif /* MBEDTLS_ECP_C */
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
return( (int) len );
}
#if defined(MBEDTLS_PEM_WRITE_C)
#define PEM_BEGIN_PUBLIC_KEY "-----BEGIN PUBLIC KEY-----\n"
#define PEM_END_PUBLIC_KEY "-----END PUBLIC KEY-----\n"
#define PEM_BEGIN_PRIVATE_KEY_RSA "-----BEGIN RSA PRIVATE KEY-----\n"
#define PEM_END_PRIVATE_KEY_RSA "-----END RSA PRIVATE KEY-----\n"
#define PEM_BEGIN_PRIVATE_KEY_EC "-----BEGIN EC PRIVATE KEY-----\n"
#define PEM_END_PRIVATE_KEY_EC "-----END EC PRIVATE KEY-----\n"
/*
* Max sizes of key per types. Shown as tag + len (+ content).
*/
#if defined(MBEDTLS_RSA_C)
/*
* RSA public keys:
* SubjectPublicKeyInfo ::= SEQUENCE { 1 + 3
* algorithm AlgorithmIdentifier, 1 + 1 (sequence)
* + 1 + 1 + 9 (rsa oid)
* + 1 + 1 (params null)
* subjectPublicKey BIT STRING } 1 + 3 + (1 + below)
* RSAPublicKey ::= SEQUENCE { 1 + 3
* modulus INTEGER, -- n 1 + 3 + MPI_MAX + 1
* publicExponent INTEGER -- e 1 + 3 + MPI_MAX + 1
* }
*/
#define RSA_PUB_DER_MAX_BYTES 38 + 2 * MBEDTLS_MPI_MAX_SIZE
/*
* RSA private keys:
* RSAPrivateKey ::= SEQUENCE { 1 + 3
* version Version, 1 + 1 + 1
* modulus INTEGER, 1 + 3 + MPI_MAX + 1
* publicExponent INTEGER, 1 + 3 + MPI_MAX + 1
* privateExponent INTEGER, 1 + 3 + MPI_MAX + 1
* prime1 INTEGER, 1 + 3 + MPI_MAX / 2 + 1
* prime2 INTEGER, 1 + 3 + MPI_MAX / 2 + 1
* exponent1 INTEGER, 1 + 3 + MPI_MAX / 2 + 1
* exponent2 INTEGER, 1 + 3 + MPI_MAX / 2 + 1
* coefficient INTEGER, 1 + 3 + MPI_MAX / 2 + 1
* otherPrimeInfos OtherPrimeInfos OPTIONAL 0 (not supported)
* }
*/
#define MPI_MAX_SIZE_2 MBEDTLS_MPI_MAX_SIZE / 2 + \
MBEDTLS_MPI_MAX_SIZE % 2
#define RSA_PRV_DER_MAX_BYTES 47 + 3 * MBEDTLS_MPI_MAX_SIZE \
+ 5 * MPI_MAX_SIZE_2
#else /* MBEDTLS_RSA_C */
#define RSA_PUB_DER_MAX_BYTES 0
#define RSA_PRV_DER_MAX_BYTES 0
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
/*
* EC public keys:
* SubjectPublicKeyInfo ::= SEQUENCE { 1 + 2
* algorithm AlgorithmIdentifier, 1 + 1 (sequence)
* + 1 + 1 + 7 (ec oid)
* + 1 + 1 + 9 (namedCurve oid)
* subjectPublicKey BIT STRING 1 + 2 + 1 [1]
* + 1 (point format) [1]
* + 2 * ECP_MAX (coords) [1]
* }
*/
#define ECP_PUB_DER_MAX_BYTES 30 + 2 * MBEDTLS_ECP_MAX_BYTES
/*
* EC private keys:
* ECPrivateKey ::= SEQUENCE { 1 + 2
* version INTEGER , 1 + 1 + 1
* privateKey OCTET STRING, 1 + 1 + ECP_MAX
* parameters [0] ECParameters OPTIONAL, 1 + 1 + (1 + 1 + 9)
* publicKey [1] BIT STRING OPTIONAL 1 + 2 + [1] above
* }
*/
#define ECP_PRV_DER_MAX_BYTES 29 + 3 * MBEDTLS_ECP_MAX_BYTES
#else /* MBEDTLS_ECP_C */
#define ECP_PUB_DER_MAX_BYTES 0
#define ECP_PRV_DER_MAX_BYTES 0
#endif /* MBEDTLS_ECP_C */
#define PUB_DER_MAX_BYTES RSA_PUB_DER_MAX_BYTES > ECP_PUB_DER_MAX_BYTES ? \
RSA_PUB_DER_MAX_BYTES : ECP_PUB_DER_MAX_BYTES
#define PRV_DER_MAX_BYTES RSA_PRV_DER_MAX_BYTES > ECP_PRV_DER_MAX_BYTES ? \
RSA_PRV_DER_MAX_BYTES : ECP_PRV_DER_MAX_BYTES
int mbedtls_pk_write_pubkey_pem( mbedtls_pk_context *key, unsigned char *buf, size_t size )
{
int ret;
unsigned char output_buf[PUB_DER_MAX_BYTES];
size_t olen = 0;
PK_VALIDATE_RET( key != NULL );
PK_VALIDATE_RET( buf != NULL || size == 0 );
if( ( ret = mbedtls_pk_write_pubkey_der( key, output_buf,
sizeof(output_buf) ) ) < 0 )
{
return( ret );
}
if( ( ret = mbedtls_pem_write_buffer( PEM_BEGIN_PUBLIC_KEY, PEM_END_PUBLIC_KEY,
output_buf + sizeof(output_buf) - ret,
ret, buf, size, &olen ) ) != 0 )
{
return( ret );
}
return( 0 );
}
int mbedtls_pk_write_key_pem( mbedtls_pk_context *key, unsigned char *buf, size_t size )
{
int ret;
unsigned char output_buf[PRV_DER_MAX_BYTES];
const char *begin, *end;
size_t olen = 0;
PK_VALIDATE_RET( key != NULL );
PK_VALIDATE_RET( buf != NULL || size == 0 );
if( ( ret = mbedtls_pk_write_key_der( key, output_buf, sizeof(output_buf) ) ) < 0 )
return( ret );
#if defined(MBEDTLS_RSA_C)
if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_RSA )
{
begin = PEM_BEGIN_PRIVATE_KEY_RSA;
end = PEM_END_PRIVATE_KEY_RSA;
}
else
#endif
#if defined(MBEDTLS_ECP_C)
if( mbedtls_pk_get_type( key ) == MBEDTLS_PK_ECKEY )
{
begin = PEM_BEGIN_PRIVATE_KEY_EC;
end = PEM_END_PRIVATE_KEY_EC;
}
else
#endif
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
if( ( ret = mbedtls_pem_write_buffer( begin, end,
output_buf + sizeof(output_buf) - ret,
ret, buf, size, &olen ) ) != 0 )
{
return( ret );
}
return( 0 );
}
#endif /* MBEDTLS_PEM_WRITE_C */
#endif /* MBEDTLS_PK_WRITE_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/pkwrite.c | C | apache-2.0 | 17,714 |
/*
* Platform abstraction layer
*
* Copyright (C) 2006-2016, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#include "mbedtls/platform_util.h"
/* The compile time configuration of memory allocation via the macros
* MBEDTLS_PLATFORM_{FREE/CALLOC}_MACRO takes precedence over the runtime
* configuration via mbedtls_platform_set_calloc_free(). So, omit everything
* related to the latter if MBEDTLS_PLATFORM_{FREE/CALLOC}_MACRO are defined. */
#if defined(MBEDTLS_PLATFORM_MEMORY) && \
!( defined(MBEDTLS_PLATFORM_CALLOC_MACRO) && \
defined(MBEDTLS_PLATFORM_FREE_MACRO) )
#if !defined(MBEDTLS_PLATFORM_STD_CALLOC)
static void *platform_calloc_uninit( size_t n, size_t size )
{
((void) n);
((void) size);
return( NULL );
}
#define MBEDTLS_PLATFORM_STD_CALLOC platform_calloc_uninit
#endif /* !MBEDTLS_PLATFORM_STD_CALLOC */
#if !defined(MBEDTLS_PLATFORM_STD_FREE)
static void platform_free_uninit( void *ptr )
{
((void) ptr);
}
#define MBEDTLS_PLATFORM_STD_FREE platform_free_uninit
#endif /* !MBEDTLS_PLATFORM_STD_FREE */
static void * (*mbedtls_calloc_func)( size_t, size_t ) = MBEDTLS_PLATFORM_STD_CALLOC;
static void (*mbedtls_free_func)( void * ) = MBEDTLS_PLATFORM_STD_FREE;
void * mbedtls_calloc( size_t nmemb, size_t size )
{
return (*mbedtls_calloc_func)( nmemb, size );
}
void mbedtls_free( void * ptr )
{
(*mbedtls_free_func)( ptr );
}
int mbedtls_platform_set_calloc_free( void * (*calloc_func)( size_t, size_t ),
void (*free_func)( void * ) )
{
mbedtls_calloc_func = calloc_func;
mbedtls_free_func = free_func;
return( 0 );
}
#endif /* MBEDTLS_PLATFORM_MEMORY &&
!( defined(MBEDTLS_PLATFORM_CALLOC_MACRO) &&
defined(MBEDTLS_PLATFORM_FREE_MACRO) ) */
#if defined(_WIN32)
#include <stdarg.h>
int mbedtls_platform_win32_snprintf( char *s, size_t n, const char *fmt, ... )
{
int ret;
va_list argp;
/* Avoid calling the invalid parameter handler by checking ourselves */
if( s == NULL || n == 0 || fmt == NULL )
return( -1 );
va_start( argp, fmt );
#if defined(_TRUNCATE) && !defined(__MINGW32__)
ret = _vsnprintf_s( s, n, _TRUNCATE, fmt, argp );
#else
ret = _vsnprintf( s, n, fmt, argp );
if( ret < 0 || (size_t) ret == n )
{
s[n-1] = '\0';
ret = -1;
}
#endif
va_end( argp );
return( ret );
}
#endif
#if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT)
#if !defined(MBEDTLS_PLATFORM_STD_SNPRINTF)
/*
* Make dummy function to prevent NULL pointer dereferences
*/
static int platform_snprintf_uninit( char * s, size_t n,
const char * format, ... )
{
((void) s);
((void) n);
((void) format);
return( 0 );
}
#define MBEDTLS_PLATFORM_STD_SNPRINTF platform_snprintf_uninit
#endif /* !MBEDTLS_PLATFORM_STD_SNPRINTF */
int (*mbedtls_snprintf)( char * s, size_t n,
const char * format,
... ) = MBEDTLS_PLATFORM_STD_SNPRINTF;
int mbedtls_platform_set_snprintf( int (*snprintf_func)( char * s, size_t n,
const char * format,
... ) )
{
mbedtls_snprintf = snprintf_func;
return( 0 );
}
#endif /* MBEDTLS_PLATFORM_SNPRINTF_ALT */
#if defined(MBEDTLS_PLATFORM_PRINTF_ALT)
#if !defined(MBEDTLS_PLATFORM_STD_PRINTF)
/*
* Make dummy function to prevent NULL pointer dereferences
*/
static int platform_printf_uninit( const char *format, ... )
{
((void) format);
return( 0 );
}
#define MBEDTLS_PLATFORM_STD_PRINTF platform_printf_uninit
#endif /* !MBEDTLS_PLATFORM_STD_PRINTF */
int (*mbedtls_printf)( const char *, ... ) = MBEDTLS_PLATFORM_STD_PRINTF;
int mbedtls_platform_set_printf( int (*printf_func)( const char *, ... ) )
{
mbedtls_printf = printf_func;
return( 0 );
}
#endif /* MBEDTLS_PLATFORM_PRINTF_ALT */
#if defined(MBEDTLS_PLATFORM_FPRINTF_ALT)
#if !defined(MBEDTLS_PLATFORM_STD_FPRINTF)
/*
* Make dummy function to prevent NULL pointer dereferences
*/
static int platform_fprintf_uninit( FILE *stream, const char *format, ... )
{
((void) stream);
((void) format);
return( 0 );
}
#define MBEDTLS_PLATFORM_STD_FPRINTF platform_fprintf_uninit
#endif /* !MBEDTLS_PLATFORM_STD_FPRINTF */
int (*mbedtls_fprintf)( FILE *, const char *, ... ) =
MBEDTLS_PLATFORM_STD_FPRINTF;
int mbedtls_platform_set_fprintf( int (*fprintf_func)( FILE *, const char *, ... ) )
{
mbedtls_fprintf = fprintf_func;
return( 0 );
}
#endif /* MBEDTLS_PLATFORM_FPRINTF_ALT */
#if defined(MBEDTLS_PLATFORM_EXIT_ALT)
#if !defined(MBEDTLS_PLATFORM_STD_EXIT)
/*
* Make dummy function to prevent NULL pointer dereferences
*/
static void platform_exit_uninit( int status )
{
((void) status);
}
#define MBEDTLS_PLATFORM_STD_EXIT platform_exit_uninit
#endif /* !MBEDTLS_PLATFORM_STD_EXIT */
void (*mbedtls_exit)( int status ) = MBEDTLS_PLATFORM_STD_EXIT;
int mbedtls_platform_set_exit( void (*exit_func)( int status ) )
{
mbedtls_exit = exit_func;
return( 0 );
}
#endif /* MBEDTLS_PLATFORM_EXIT_ALT */
#if defined(MBEDTLS_HAVE_TIME)
#if defined(MBEDTLS_PLATFORM_TIME_ALT)
#if !defined(MBEDTLS_PLATFORM_STD_TIME)
/*
* Make dummy function to prevent NULL pointer dereferences
*/
static mbedtls_time_t platform_time_uninit( mbedtls_time_t* timer )
{
((void) timer);
return( 0 );
}
#define MBEDTLS_PLATFORM_STD_TIME platform_time_uninit
#endif /* !MBEDTLS_PLATFORM_STD_TIME */
mbedtls_time_t (*mbedtls_time)( mbedtls_time_t* timer ) = MBEDTLS_PLATFORM_STD_TIME;
int mbedtls_platform_set_time( mbedtls_time_t (*time_func)( mbedtls_time_t* timer ) )
{
mbedtls_time = time_func;
return( 0 );
}
#endif /* MBEDTLS_PLATFORM_TIME_ALT */
#endif /* MBEDTLS_HAVE_TIME */
#if defined(MBEDTLS_ENTROPY_NV_SEED)
#if !defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS) && defined(MBEDTLS_FS_IO)
/* Default implementations for the platform independent seed functions use
* standard libc file functions to read from and write to a pre-defined filename
*/
int mbedtls_platform_std_nv_seed_read( unsigned char *buf, size_t buf_len )
{
FILE *file;
size_t n;
if( ( file = fopen( MBEDTLS_PLATFORM_STD_NV_SEED_FILE, "rb" ) ) == NULL )
return( -1 );
if( ( n = fread( buf, 1, buf_len, file ) ) != buf_len )
{
fclose( file );
mbedtls_platform_zeroize( buf, buf_len );
return( -1 );
}
fclose( file );
return( (int)n );
}
int mbedtls_platform_std_nv_seed_write( unsigned char *buf, size_t buf_len )
{
FILE *file;
size_t n;
if( ( file = fopen( MBEDTLS_PLATFORM_STD_NV_SEED_FILE, "w" ) ) == NULL )
return -1;
if( ( n = fwrite( buf, 1, buf_len, file ) ) != buf_len )
{
fclose( file );
return -1;
}
fclose( file );
return( (int)n );
}
#endif /* MBEDTLS_PLATFORM_NO_STD_FUNCTIONS */
#if defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
#if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_READ)
/*
* Make dummy function to prevent NULL pointer dereferences
*/
static int platform_nv_seed_read_uninit( unsigned char *buf, size_t buf_len )
{
((void) buf);
((void) buf_len);
return( -1 );
}
#define MBEDTLS_PLATFORM_STD_NV_SEED_READ platform_nv_seed_read_uninit
#endif /* !MBEDTLS_PLATFORM_STD_NV_SEED_READ */
#if !defined(MBEDTLS_PLATFORM_STD_NV_SEED_WRITE)
/*
* Make dummy function to prevent NULL pointer dereferences
*/
static int platform_nv_seed_write_uninit( unsigned char *buf, size_t buf_len )
{
((void) buf);
((void) buf_len);
return( -1 );
}
#define MBEDTLS_PLATFORM_STD_NV_SEED_WRITE platform_nv_seed_write_uninit
#endif /* !MBEDTLS_PLATFORM_STD_NV_SEED_WRITE */
int (*mbedtls_nv_seed_read)( unsigned char *buf, size_t buf_len ) =
MBEDTLS_PLATFORM_STD_NV_SEED_READ;
int (*mbedtls_nv_seed_write)( unsigned char *buf, size_t buf_len ) =
MBEDTLS_PLATFORM_STD_NV_SEED_WRITE;
int mbedtls_platform_set_nv_seed(
int (*nv_seed_read_func)( unsigned char *buf, size_t buf_len ),
int (*nv_seed_write_func)( unsigned char *buf, size_t buf_len ) )
{
mbedtls_nv_seed_read = nv_seed_read_func;
mbedtls_nv_seed_write = nv_seed_write_func;
return( 0 );
}
#endif /* MBEDTLS_PLATFORM_NV_SEED_ALT */
#endif /* MBEDTLS_ENTROPY_NV_SEED */
#if !defined(MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT)
/*
* Placeholder platform setup that does nothing by default
*/
int mbedtls_platform_setup( mbedtls_platform_context *ctx )
{
(void)ctx;
return( 0 );
}
/*
* Placeholder platform teardown that does nothing by default
*/
void mbedtls_platform_teardown( mbedtls_platform_context *ctx )
{
(void)ctx;
}
#endif /* MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT */
#endif /* MBEDTLS_PLATFORM_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/platform.c | C | apache-2.0 | 9,681 |
/*
* Common and shared functions used by multiple modules in the Mbed TLS
* library.
*
* Copyright (C) 2018, Arm Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of Mbed TLS (https://tls.mbed.org)
*/
/*
* Ensure gmtime_r is available even with -std=c99; must be defined before
* config.h, which pulls in glibc's features.h. Harmless on other platforms.
*/
#if !defined(_POSIX_C_SOURCE)
#define _POSIX_C_SOURCE 200112L
#endif
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#include "mbedtls/platform_util.h"
#include "mbedtls/platform.h"
#include "mbedtls/threading.h"
#include <stddef.h>
#include <string.h>
#if !defined(MBEDTLS_PLATFORM_ZEROIZE_ALT)
/*
* This implementation should never be optimized out by the compiler
*
* This implementation for mbedtls_platform_zeroize() was inspired from Colin
* Percival's blog article at:
*
* http://www.daemonology.net/blog/2014-09-04-how-to-zero-a-buffer.html
*
* It uses a volatile function pointer to the standard memset(). Because the
* pointer is volatile the compiler expects it to change at
* any time and will not optimize out the call that could potentially perform
* other operations on the input buffer instead of just setting it to 0.
* Nevertheless, as pointed out by davidtgoldblatt on Hacker News
* (refer to http://www.daemonology.net/blog/2014-09-05-erratum.html for
* details), optimizations of the following form are still possible:
*
* if( memset_func != memset )
* memset_func( buf, 0, len );
*
* Note that it is extremely difficult to guarantee that
* mbedtls_platform_zeroize() will not be optimized out by aggressive compilers
* in a portable way. For this reason, Mbed TLS also provides the configuration
* option MBEDTLS_PLATFORM_ZEROIZE_ALT, which allows users to configure
* mbedtls_platform_zeroize() to use a suitable implementation for their
* platform and needs.
*/
static void * (* const volatile memset_func)( void *, int, size_t ) = (void * (* const volatile)( void *, int, size_t))memset;
void mbedtls_platform_zeroize( void *buf, size_t len )
{
memset_func( buf, 0, len );
}
#endif /* MBEDTLS_PLATFORM_ZEROIZE_ALT */
#if defined(MBEDTLS_HAVE_TIME_DATE) && !defined(MBEDTLS_PLATFORM_GMTIME_R_ALT)
#include <time.h>
#if !defined(_WIN32) && (defined(unix) || \
defined(__unix) || defined(__unix__) || (defined(__APPLE__) && \
defined(__MACH__)))
#include <unistd.h>
#endif /* !_WIN32 && (unix || __unix || __unix__ ||
* (__APPLE__ && __MACH__)) */
#if !( ( defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L ) || \
( defined(_POSIX_THREAD_SAFE_FUNCTIONS ) && \
_POSIX_THREAD_SAFE_FUNCTIONS >= 20112L ) )
/*
* This is a convenience shorthand macro to avoid checking the long
* preprocessor conditions above. Ideally, we could expose this macro in
* platform_util.h and simply use it in platform_util.c, threading.c and
* threading.h. However, this macro is not part of the Mbed TLS public API, so
* we keep it private by only defining it in this file
*/
#if ! ( defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) )
#define PLATFORM_UTIL_USE_GMTIME
#endif /* ! ( defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) ) */
#endif /* !( ( defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L ) || \
( defined(_POSIX_THREAD_SAFE_FUNCTIONS ) && \
_POSIX_THREAD_SAFE_FUNCTIONS >= 20112L ) ) */
struct tm *mbedtls_platform_gmtime_r( const mbedtls_time_t *tt,
struct tm *tm_buf )
{
#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
return( ( gmtime_s( tm_buf, tt ) == 0 ) ? tm_buf : NULL );
#elif !defined(PLATFORM_UTIL_USE_GMTIME)
return( gmtime_r( tt, tm_buf ) );
#else
struct tm *lt;
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_lock( &mbedtls_threading_gmtime_mutex ) != 0 )
return( NULL );
#endif /* MBEDTLS_THREADING_C */
lt = gmtime( tt );
if( lt != NULL )
{
memcpy( tm_buf, lt, sizeof( struct tm ) );
}
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &mbedtls_threading_gmtime_mutex ) != 0 )
return( NULL );
#endif /* MBEDTLS_THREADING_C */
return( ( lt == NULL ) ? NULL : tm_buf );
#endif /* _WIN32 && !EFIX64 && !EFI32 */
}
#endif /* MBEDTLS_HAVE_TIME_DATE && MBEDTLS_PLATFORM_GMTIME_R_ALT */
| YifuLiu/AliOS-Things | components/mbedtls/library/platform_util.c | C | apache-2.0 | 5,043 |
/**
* \file poly1305.c
*
* \brief Poly1305 authentication algorithm.
*
* Copyright (C) 2006-2016, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_POLY1305_C)
#include "mbedtls/poly1305.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if !defined(MBEDTLS_POLY1305_ALT)
#if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
!defined(inline) && !defined(__cplusplus)
#define inline __inline
#endif
/* Parameter validation macros */
#define POLY1305_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA )
#define POLY1305_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
#define POLY1305_BLOCK_SIZE_BYTES ( 16U )
#define BYTES_TO_U32_LE( data, offset ) \
( (uint32_t) data[offset] \
| (uint32_t) ( (uint32_t) data[( offset ) + 1] << 8 ) \
| (uint32_t) ( (uint32_t) data[( offset ) + 2] << 16 ) \
| (uint32_t) ( (uint32_t) data[( offset ) + 3] << 24 ) \
)
/*
* Our implementation is tuned for 32-bit platforms with a 64-bit multiplier.
* However we provided an alternative for platforms without such a multiplier.
*/
#if defined(MBEDTLS_NO_64BIT_MULTIPLICATION)
static uint64_t mul64( uint32_t a, uint32_t b )
{
/* a = al + 2**16 ah, b = bl + 2**16 bh */
const uint16_t al = (uint16_t) a;
const uint16_t bl = (uint16_t) b;
const uint16_t ah = a >> 16;
const uint16_t bh = b >> 16;
/* ab = al*bl + 2**16 (ah*bl + bl*bh) + 2**32 ah*bh */
const uint32_t lo = (uint32_t) al * bl;
const uint64_t me = (uint64_t)( (uint32_t) ah * bl ) + (uint32_t) al * bh;
const uint32_t hi = (uint32_t) ah * bh;
return( lo + ( me << 16 ) + ( (uint64_t) hi << 32 ) );
}
#else
static inline uint64_t mul64( uint32_t a, uint32_t b )
{
return( (uint64_t) a * b );
}
#endif
/**
* \brief Process blocks with Poly1305.
*
* \param ctx The Poly1305 context.
* \param nblocks Number of blocks to process. Note that this
* function only processes full blocks.
* \param input Buffer containing the input block(s).
* \param needs_padding Set to 0 if the padding bit has already been
* applied to the input data before calling this
* function. Otherwise, set this parameter to 1.
*/
static void poly1305_process( mbedtls_poly1305_context *ctx,
size_t nblocks,
const unsigned char *input,
uint32_t needs_padding )
{
uint64_t d0, d1, d2, d3;
uint32_t acc0, acc1, acc2, acc3, acc4;
uint32_t r0, r1, r2, r3;
uint32_t rs1, rs2, rs3;
size_t offset = 0U;
size_t i;
r0 = ctx->r[0];
r1 = ctx->r[1];
r2 = ctx->r[2];
r3 = ctx->r[3];
rs1 = r1 + ( r1 >> 2U );
rs2 = r2 + ( r2 >> 2U );
rs3 = r3 + ( r3 >> 2U );
acc0 = ctx->acc[0];
acc1 = ctx->acc[1];
acc2 = ctx->acc[2];
acc3 = ctx->acc[3];
acc4 = ctx->acc[4];
/* Process full blocks */
for( i = 0U; i < nblocks; i++ )
{
/* The input block is treated as a 128-bit little-endian integer */
d0 = BYTES_TO_U32_LE( input, offset + 0 );
d1 = BYTES_TO_U32_LE( input, offset + 4 );
d2 = BYTES_TO_U32_LE( input, offset + 8 );
d3 = BYTES_TO_U32_LE( input, offset + 12 );
/* Compute: acc += (padded) block as a 130-bit integer */
d0 += (uint64_t) acc0;
d1 += (uint64_t) acc1 + ( d0 >> 32U );
d2 += (uint64_t) acc2 + ( d1 >> 32U );
d3 += (uint64_t) acc3 + ( d2 >> 32U );
acc0 = (uint32_t) d0;
acc1 = (uint32_t) d1;
acc2 = (uint32_t) d2;
acc3 = (uint32_t) d3;
acc4 += (uint32_t) ( d3 >> 32U ) + needs_padding;
/* Compute: acc *= r */
d0 = mul64( acc0, r0 ) +
mul64( acc1, rs3 ) +
mul64( acc2, rs2 ) +
mul64( acc3, rs1 );
d1 = mul64( acc0, r1 ) +
mul64( acc1, r0 ) +
mul64( acc2, rs3 ) +
mul64( acc3, rs2 ) +
mul64( acc4, rs1 );
d2 = mul64( acc0, r2 ) +
mul64( acc1, r1 ) +
mul64( acc2, r0 ) +
mul64( acc3, rs3 ) +
mul64( acc4, rs2 );
d3 = mul64( acc0, r3 ) +
mul64( acc1, r2 ) +
mul64( acc2, r1 ) +
mul64( acc3, r0 ) +
mul64( acc4, rs3 );
acc4 *= r0;
/* Compute: acc %= (2^130 - 5) (partial remainder) */
d1 += ( d0 >> 32 );
d2 += ( d1 >> 32 );
d3 += ( d2 >> 32 );
acc0 = (uint32_t) d0;
acc1 = (uint32_t) d1;
acc2 = (uint32_t) d2;
acc3 = (uint32_t) d3;
acc4 = (uint32_t) ( d3 >> 32 ) + acc4;
d0 = (uint64_t) acc0 + ( acc4 >> 2 ) + ( acc4 & 0xFFFFFFFCU );
acc4 &= 3U;
acc0 = (uint32_t) d0;
d0 = (uint64_t) acc1 + ( d0 >> 32U );
acc1 = (uint32_t) d0;
d0 = (uint64_t) acc2 + ( d0 >> 32U );
acc2 = (uint32_t) d0;
d0 = (uint64_t) acc3 + ( d0 >> 32U );
acc3 = (uint32_t) d0;
d0 = (uint64_t) acc4 + ( d0 >> 32U );
acc4 = (uint32_t) d0;
offset += POLY1305_BLOCK_SIZE_BYTES;
}
ctx->acc[0] = acc0;
ctx->acc[1] = acc1;
ctx->acc[2] = acc2;
ctx->acc[3] = acc3;
ctx->acc[4] = acc4;
}
/**
* \brief Compute the Poly1305 MAC
*
* \param ctx The Poly1305 context.
* \param mac The buffer to where the MAC is written. Must be
* big enough to contain the 16-byte MAC.
*/
static void poly1305_compute_mac( const mbedtls_poly1305_context *ctx,
unsigned char mac[16] )
{
uint64_t d;
uint32_t g0, g1, g2, g3, g4;
uint32_t acc0, acc1, acc2, acc3, acc4;
uint32_t mask;
uint32_t mask_inv;
acc0 = ctx->acc[0];
acc1 = ctx->acc[1];
acc2 = ctx->acc[2];
acc3 = ctx->acc[3];
acc4 = ctx->acc[4];
/* Before adding 's' we ensure that the accumulator is mod 2^130 - 5.
* We do this by calculating acc - (2^130 - 5), then checking if
* the 131st bit is set. If it is, then reduce: acc -= (2^130 - 5)
*/
/* Calculate acc + -(2^130 - 5) */
d = ( (uint64_t) acc0 + 5U );
g0 = (uint32_t) d;
d = ( (uint64_t) acc1 + ( d >> 32 ) );
g1 = (uint32_t) d;
d = ( (uint64_t) acc2 + ( d >> 32 ) );
g2 = (uint32_t) d;
d = ( (uint64_t) acc3 + ( d >> 32 ) );
g3 = (uint32_t) d;
g4 = acc4 + (uint32_t) ( d >> 32U );
/* mask == 0xFFFFFFFF if 131st bit is set, otherwise mask == 0 */
mask = (uint32_t) 0U - ( g4 >> 2U );
mask_inv = ~mask;
/* If 131st bit is set then acc=g, otherwise, acc is unmodified */
acc0 = ( acc0 & mask_inv ) | ( g0 & mask );
acc1 = ( acc1 & mask_inv ) | ( g1 & mask );
acc2 = ( acc2 & mask_inv ) | ( g2 & mask );
acc3 = ( acc3 & mask_inv ) | ( g3 & mask );
/* Add 's' */
d = (uint64_t) acc0 + ctx->s[0];
acc0 = (uint32_t) d;
d = (uint64_t) acc1 + ctx->s[1] + ( d >> 32U );
acc1 = (uint32_t) d;
d = (uint64_t) acc2 + ctx->s[2] + ( d >> 32U );
acc2 = (uint32_t) d;
acc3 += ctx->s[3] + (uint32_t) ( d >> 32U );
/* Compute MAC (128 least significant bits of the accumulator) */
mac[ 0] = (unsigned char)( acc0 );
mac[ 1] = (unsigned char)( acc0 >> 8 );
mac[ 2] = (unsigned char)( acc0 >> 16 );
mac[ 3] = (unsigned char)( acc0 >> 24 );
mac[ 4] = (unsigned char)( acc1 );
mac[ 5] = (unsigned char)( acc1 >> 8 );
mac[ 6] = (unsigned char)( acc1 >> 16 );
mac[ 7] = (unsigned char)( acc1 >> 24 );
mac[ 8] = (unsigned char)( acc2 );
mac[ 9] = (unsigned char)( acc2 >> 8 );
mac[10] = (unsigned char)( acc2 >> 16 );
mac[11] = (unsigned char)( acc2 >> 24 );
mac[12] = (unsigned char)( acc3 );
mac[13] = (unsigned char)( acc3 >> 8 );
mac[14] = (unsigned char)( acc3 >> 16 );
mac[15] = (unsigned char)( acc3 >> 24 );
}
void mbedtls_poly1305_init( mbedtls_poly1305_context *ctx )
{
POLY1305_VALIDATE( ctx != NULL );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_poly1305_context ) );
}
void mbedtls_poly1305_free( mbedtls_poly1305_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_poly1305_context ) );
}
int mbedtls_poly1305_starts( mbedtls_poly1305_context *ctx,
const unsigned char key[32] )
{
POLY1305_VALIDATE_RET( ctx != NULL );
POLY1305_VALIDATE_RET( key != NULL );
/* r &= 0x0ffffffc0ffffffc0ffffffc0fffffff */
ctx->r[0] = BYTES_TO_U32_LE( key, 0 ) & 0x0FFFFFFFU;
ctx->r[1] = BYTES_TO_U32_LE( key, 4 ) & 0x0FFFFFFCU;
ctx->r[2] = BYTES_TO_U32_LE( key, 8 ) & 0x0FFFFFFCU;
ctx->r[3] = BYTES_TO_U32_LE( key, 12 ) & 0x0FFFFFFCU;
ctx->s[0] = BYTES_TO_U32_LE( key, 16 );
ctx->s[1] = BYTES_TO_U32_LE( key, 20 );
ctx->s[2] = BYTES_TO_U32_LE( key, 24 );
ctx->s[3] = BYTES_TO_U32_LE( key, 28 );
/* Initial accumulator state */
ctx->acc[0] = 0U;
ctx->acc[1] = 0U;
ctx->acc[2] = 0U;
ctx->acc[3] = 0U;
ctx->acc[4] = 0U;
/* Queue initially empty */
mbedtls_platform_zeroize( ctx->queue, sizeof( ctx->queue ) );
ctx->queue_len = 0U;
return( 0 );
}
int mbedtls_poly1305_update( mbedtls_poly1305_context *ctx,
const unsigned char *input,
size_t ilen )
{
size_t offset = 0U;
size_t remaining = ilen;
size_t queue_free_len;
size_t nblocks;
POLY1305_VALIDATE_RET( ctx != NULL );
POLY1305_VALIDATE_RET( ilen == 0 || input != NULL );
if( ( remaining > 0U ) && ( ctx->queue_len > 0U ) )
{
queue_free_len = ( POLY1305_BLOCK_SIZE_BYTES - ctx->queue_len );
if( ilen < queue_free_len )
{
/* Not enough data to complete the block.
* Store this data with the other leftovers.
*/
memcpy( &ctx->queue[ctx->queue_len],
input,
ilen );
ctx->queue_len += ilen;
remaining = 0U;
}
else
{
/* Enough data to produce a complete block */
memcpy( &ctx->queue[ctx->queue_len],
input,
queue_free_len );
ctx->queue_len = 0U;
poly1305_process( ctx, 1U, ctx->queue, 1U ); /* add padding bit */
offset += queue_free_len;
remaining -= queue_free_len;
}
}
if( remaining >= POLY1305_BLOCK_SIZE_BYTES )
{
nblocks = remaining / POLY1305_BLOCK_SIZE_BYTES;
poly1305_process( ctx, nblocks, &input[offset], 1U );
offset += nblocks * POLY1305_BLOCK_SIZE_BYTES;
remaining %= POLY1305_BLOCK_SIZE_BYTES;
}
if( remaining > 0U )
{
/* Store partial block */
ctx->queue_len = remaining;
memcpy( ctx->queue, &input[offset], remaining );
}
return( 0 );
}
int mbedtls_poly1305_finish( mbedtls_poly1305_context *ctx,
unsigned char mac[16] )
{
POLY1305_VALIDATE_RET( ctx != NULL );
POLY1305_VALIDATE_RET( mac != NULL );
/* Process any leftover data */
if( ctx->queue_len > 0U )
{
/* Add padding bit */
ctx->queue[ctx->queue_len] = 1U;
ctx->queue_len++;
/* Pad with zeroes */
memset( &ctx->queue[ctx->queue_len],
0,
POLY1305_BLOCK_SIZE_BYTES - ctx->queue_len );
poly1305_process( ctx, 1U, /* Process 1 block */
ctx->queue, 0U ); /* Already padded above */
}
poly1305_compute_mac( ctx, mac );
return( 0 );
}
int mbedtls_poly1305_mac( const unsigned char key[32],
const unsigned char *input,
size_t ilen,
unsigned char mac[16] )
{
mbedtls_poly1305_context ctx;
int ret;
POLY1305_VALIDATE_RET( key != NULL );
POLY1305_VALIDATE_RET( mac != NULL );
POLY1305_VALIDATE_RET( ilen == 0 || input != NULL );
mbedtls_poly1305_init( &ctx );
ret = mbedtls_poly1305_starts( &ctx, key );
if( ret != 0 )
goto cleanup;
ret = mbedtls_poly1305_update( &ctx, input, ilen );
if( ret != 0 )
goto cleanup;
ret = mbedtls_poly1305_finish( &ctx, mac );
cleanup:
mbedtls_poly1305_free( &ctx );
return( ret );
}
#endif /* MBEDTLS_POLY1305_ALT */
#if defined(MBEDTLS_SELF_TEST)
static const unsigned char test_keys[2][32] =
{
{
0x85, 0xd6, 0xbe, 0x78, 0x57, 0x55, 0x6d, 0x33,
0x7f, 0x44, 0x52, 0xfe, 0x42, 0xd5, 0x06, 0xa8,
0x01, 0x03, 0x80, 0x8a, 0xfb, 0x0d, 0xb2, 0xfd,
0x4a, 0xbf, 0xf6, 0xaf, 0x41, 0x49, 0xf5, 0x1b
},
{
0x1c, 0x92, 0x40, 0xa5, 0xeb, 0x55, 0xd3, 0x8a,
0xf3, 0x33, 0x88, 0x86, 0x04, 0xf6, 0xb5, 0xf0,
0x47, 0x39, 0x17, 0xc1, 0x40, 0x2b, 0x80, 0x09,
0x9d, 0xca, 0x5c, 0xbc, 0x20, 0x70, 0x75, 0xc0
}
};
static const unsigned char test_data[2][127] =
{
{
0x43, 0x72, 0x79, 0x70, 0x74, 0x6f, 0x67, 0x72,
0x61, 0x70, 0x68, 0x69, 0x63, 0x20, 0x46, 0x6f,
0x72, 0x75, 0x6d, 0x20, 0x52, 0x65, 0x73, 0x65,
0x61, 0x72, 0x63, 0x68, 0x20, 0x47, 0x72, 0x6f,
0x75, 0x70
},
{
0x27, 0x54, 0x77, 0x61, 0x73, 0x20, 0x62, 0x72,
0x69, 0x6c, 0x6c, 0x69, 0x67, 0x2c, 0x20, 0x61,
0x6e, 0x64, 0x20, 0x74, 0x68, 0x65, 0x20, 0x73,
0x6c, 0x69, 0x74, 0x68, 0x79, 0x20, 0x74, 0x6f,
0x76, 0x65, 0x73, 0x0a, 0x44, 0x69, 0x64, 0x20,
0x67, 0x79, 0x72, 0x65, 0x20, 0x61, 0x6e, 0x64,
0x20, 0x67, 0x69, 0x6d, 0x62, 0x6c, 0x65, 0x20,
0x69, 0x6e, 0x20, 0x74, 0x68, 0x65, 0x20, 0x77,
0x61, 0x62, 0x65, 0x3a, 0x0a, 0x41, 0x6c, 0x6c,
0x20, 0x6d, 0x69, 0x6d, 0x73, 0x79, 0x20, 0x77,
0x65, 0x72, 0x65, 0x20, 0x74, 0x68, 0x65, 0x20,
0x62, 0x6f, 0x72, 0x6f, 0x67, 0x6f, 0x76, 0x65,
0x73, 0x2c, 0x0a, 0x41, 0x6e, 0x64, 0x20, 0x74,
0x68, 0x65, 0x20, 0x6d, 0x6f, 0x6d, 0x65, 0x20,
0x72, 0x61, 0x74, 0x68, 0x73, 0x20, 0x6f, 0x75,
0x74, 0x67, 0x72, 0x61, 0x62, 0x65, 0x2e
}
};
static const size_t test_data_len[2] =
{
34U,
127U
};
static const unsigned char test_mac[2][16] =
{
{
0xa8, 0x06, 0x1d, 0xc1, 0x30, 0x51, 0x36, 0xc6,
0xc2, 0x2b, 0x8b, 0xaf, 0x0c, 0x01, 0x27, 0xa9
},
{
0x45, 0x41, 0x66, 0x9a, 0x7e, 0xaa, 0xee, 0x61,
0xe7, 0x08, 0xdc, 0x7c, 0xbc, 0xc5, 0xeb, 0x62
}
};
#define ASSERT( cond, args ) \
do \
{ \
if( ! ( cond ) ) \
{ \
if( verbose != 0 ) \
mbedtls_printf args; \
\
return( -1 ); \
} \
} \
while( 0 )
int mbedtls_poly1305_self_test( int verbose )
{
unsigned char mac[16];
unsigned i;
int ret;
for( i = 0U; i < 2U; i++ )
{
if( verbose != 0 )
mbedtls_printf( " Poly1305 test %u ", i );
ret = mbedtls_poly1305_mac( test_keys[i],
test_data[i],
test_data_len[i],
mac );
ASSERT( 0 == ret, ( "error code: %i\n", ret ) );
ASSERT( 0 == memcmp( mac, test_mac[i], 16U ), ( "failed (mac)\n" ) );
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_POLY1305_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/poly1305.c | C | apache-2.0 | 17,179 |
/*
* RIPE MD-160 implementation
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The RIPEMD-160 algorithm was designed by RIPE in 1996
* http://homes.esat.kuleuven.be/~bosselae/mbedtls_ripemd160.html
* http://ehash.iaik.tugraz.at/wiki/RIPEMD-160
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_RIPEMD160_C)
#include "mbedtls/ripemd160.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if !defined(MBEDTLS_RIPEMD160_ALT)
/*
* 32-bit integer manipulation macros (little endian)
*/
#ifndef GET_UINT32_LE
#define GET_UINT32_LE(n,b,i) \
{ \
(n) = ( (uint32_t) (b)[(i) ] ) \
| ( (uint32_t) (b)[(i) + 1] << 8 ) \
| ( (uint32_t) (b)[(i) + 2] << 16 ) \
| ( (uint32_t) (b)[(i) + 3] << 24 ); \
}
#endif
#ifndef PUT_UINT32_LE
#define PUT_UINT32_LE(n,b,i) \
{ \
(b)[(i) ] = (unsigned char) ( ( (n) ) & 0xFF ); \
(b)[(i) + 1] = (unsigned char) ( ( (n) >> 8 ) & 0xFF ); \
(b)[(i) + 2] = (unsigned char) ( ( (n) >> 16 ) & 0xFF ); \
(b)[(i) + 3] = (unsigned char) ( ( (n) >> 24 ) & 0xFF ); \
}
#endif
void mbedtls_ripemd160_init( mbedtls_ripemd160_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_ripemd160_context ) );
}
void mbedtls_ripemd160_free( mbedtls_ripemd160_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ripemd160_context ) );
}
void mbedtls_ripemd160_clone( mbedtls_ripemd160_context *dst,
const mbedtls_ripemd160_context *src )
{
*dst = *src;
}
/*
* RIPEMD-160 context setup
*/
int mbedtls_ripemd160_starts_ret( mbedtls_ripemd160_context *ctx )
{
ctx->total[0] = 0;
ctx->total[1] = 0;
ctx->state[0] = 0x67452301;
ctx->state[1] = 0xEFCDAB89;
ctx->state[2] = 0x98BADCFE;
ctx->state[3] = 0x10325476;
ctx->state[4] = 0xC3D2E1F0;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_ripemd160_starts( mbedtls_ripemd160_context *ctx )
{
mbedtls_ripemd160_starts_ret( ctx );
}
#endif
#if !defined(MBEDTLS_RIPEMD160_PROCESS_ALT)
/*
* Process one block
*/
int mbedtls_internal_ripemd160_process( mbedtls_ripemd160_context *ctx,
const unsigned char data[64] )
{
uint32_t A, B, C, D, E, Ap, Bp, Cp, Dp, Ep, X[16];
GET_UINT32_LE( X[ 0], data, 0 );
GET_UINT32_LE( X[ 1], data, 4 );
GET_UINT32_LE( X[ 2], data, 8 );
GET_UINT32_LE( X[ 3], data, 12 );
GET_UINT32_LE( X[ 4], data, 16 );
GET_UINT32_LE( X[ 5], data, 20 );
GET_UINT32_LE( X[ 6], data, 24 );
GET_UINT32_LE( X[ 7], data, 28 );
GET_UINT32_LE( X[ 8], data, 32 );
GET_UINT32_LE( X[ 9], data, 36 );
GET_UINT32_LE( X[10], data, 40 );
GET_UINT32_LE( X[11], data, 44 );
GET_UINT32_LE( X[12], data, 48 );
GET_UINT32_LE( X[13], data, 52 );
GET_UINT32_LE( X[14], data, 56 );
GET_UINT32_LE( X[15], data, 60 );
A = Ap = ctx->state[0];
B = Bp = ctx->state[1];
C = Cp = ctx->state[2];
D = Dp = ctx->state[3];
E = Ep = ctx->state[4];
#define F1( x, y, z ) ( x ^ y ^ z )
#define F2( x, y, z ) ( ( x & y ) | ( ~x & z ) )
#define F3( x, y, z ) ( ( x | ~y ) ^ z )
#define F4( x, y, z ) ( ( x & z ) | ( y & ~z ) )
#define F5( x, y, z ) ( x ^ ( y | ~z ) )
#define S( x, n ) ( ( x << n ) | ( x >> (32 - n) ) )
#define P( a, b, c, d, e, r, s, f, k ) \
a += f( b, c, d ) + X[r] + k; \
a = S( a, s ) + e; \
c = S( c, 10 );
#define P2( a, b, c, d, e, r, s, rp, sp ) \
P( a, b, c, d, e, r, s, F, K ); \
P( a ## p, b ## p, c ## p, d ## p, e ## p, rp, sp, Fp, Kp );
#define F F1
#define K 0x00000000
#define Fp F5
#define Kp 0x50A28BE6
P2( A, B, C, D, E, 0, 11, 5, 8 );
P2( E, A, B, C, D, 1, 14, 14, 9 );
P2( D, E, A, B, C, 2, 15, 7, 9 );
P2( C, D, E, A, B, 3, 12, 0, 11 );
P2( B, C, D, E, A, 4, 5, 9, 13 );
P2( A, B, C, D, E, 5, 8, 2, 15 );
P2( E, A, B, C, D, 6, 7, 11, 15 );
P2( D, E, A, B, C, 7, 9, 4, 5 );
P2( C, D, E, A, B, 8, 11, 13, 7 );
P2( B, C, D, E, A, 9, 13, 6, 7 );
P2( A, B, C, D, E, 10, 14, 15, 8 );
P2( E, A, B, C, D, 11, 15, 8, 11 );
P2( D, E, A, B, C, 12, 6, 1, 14 );
P2( C, D, E, A, B, 13, 7, 10, 14 );
P2( B, C, D, E, A, 14, 9, 3, 12 );
P2( A, B, C, D, E, 15, 8, 12, 6 );
#undef F
#undef K
#undef Fp
#undef Kp
#define F F2
#define K 0x5A827999
#define Fp F4
#define Kp 0x5C4DD124
P2( E, A, B, C, D, 7, 7, 6, 9 );
P2( D, E, A, B, C, 4, 6, 11, 13 );
P2( C, D, E, A, B, 13, 8, 3, 15 );
P2( B, C, D, E, A, 1, 13, 7, 7 );
P2( A, B, C, D, E, 10, 11, 0, 12 );
P2( E, A, B, C, D, 6, 9, 13, 8 );
P2( D, E, A, B, C, 15, 7, 5, 9 );
P2( C, D, E, A, B, 3, 15, 10, 11 );
P2( B, C, D, E, A, 12, 7, 14, 7 );
P2( A, B, C, D, E, 0, 12, 15, 7 );
P2( E, A, B, C, D, 9, 15, 8, 12 );
P2( D, E, A, B, C, 5, 9, 12, 7 );
P2( C, D, E, A, B, 2, 11, 4, 6 );
P2( B, C, D, E, A, 14, 7, 9, 15 );
P2( A, B, C, D, E, 11, 13, 1, 13 );
P2( E, A, B, C, D, 8, 12, 2, 11 );
#undef F
#undef K
#undef Fp
#undef Kp
#define F F3
#define K 0x6ED9EBA1
#define Fp F3
#define Kp 0x6D703EF3
P2( D, E, A, B, C, 3, 11, 15, 9 );
P2( C, D, E, A, B, 10, 13, 5, 7 );
P2( B, C, D, E, A, 14, 6, 1, 15 );
P2( A, B, C, D, E, 4, 7, 3, 11 );
P2( E, A, B, C, D, 9, 14, 7, 8 );
P2( D, E, A, B, C, 15, 9, 14, 6 );
P2( C, D, E, A, B, 8, 13, 6, 6 );
P2( B, C, D, E, A, 1, 15, 9, 14 );
P2( A, B, C, D, E, 2, 14, 11, 12 );
P2( E, A, B, C, D, 7, 8, 8, 13 );
P2( D, E, A, B, C, 0, 13, 12, 5 );
P2( C, D, E, A, B, 6, 6, 2, 14 );
P2( B, C, D, E, A, 13, 5, 10, 13 );
P2( A, B, C, D, E, 11, 12, 0, 13 );
P2( E, A, B, C, D, 5, 7, 4, 7 );
P2( D, E, A, B, C, 12, 5, 13, 5 );
#undef F
#undef K
#undef Fp
#undef Kp
#define F F4
#define K 0x8F1BBCDC
#define Fp F2
#define Kp 0x7A6D76E9
P2( C, D, E, A, B, 1, 11, 8, 15 );
P2( B, C, D, E, A, 9, 12, 6, 5 );
P2( A, B, C, D, E, 11, 14, 4, 8 );
P2( E, A, B, C, D, 10, 15, 1, 11 );
P2( D, E, A, B, C, 0, 14, 3, 14 );
P2( C, D, E, A, B, 8, 15, 11, 14 );
P2( B, C, D, E, A, 12, 9, 15, 6 );
P2( A, B, C, D, E, 4, 8, 0, 14 );
P2( E, A, B, C, D, 13, 9, 5, 6 );
P2( D, E, A, B, C, 3, 14, 12, 9 );
P2( C, D, E, A, B, 7, 5, 2, 12 );
P2( B, C, D, E, A, 15, 6, 13, 9 );
P2( A, B, C, D, E, 14, 8, 9, 12 );
P2( E, A, B, C, D, 5, 6, 7, 5 );
P2( D, E, A, B, C, 6, 5, 10, 15 );
P2( C, D, E, A, B, 2, 12, 14, 8 );
#undef F
#undef K
#undef Fp
#undef Kp
#define F F5
#define K 0xA953FD4E
#define Fp F1
#define Kp 0x00000000
P2( B, C, D, E, A, 4, 9, 12, 8 );
P2( A, B, C, D, E, 0, 15, 15, 5 );
P2( E, A, B, C, D, 5, 5, 10, 12 );
P2( D, E, A, B, C, 9, 11, 4, 9 );
P2( C, D, E, A, B, 7, 6, 1, 12 );
P2( B, C, D, E, A, 12, 8, 5, 5 );
P2( A, B, C, D, E, 2, 13, 8, 14 );
P2( E, A, B, C, D, 10, 12, 7, 6 );
P2( D, E, A, B, C, 14, 5, 6, 8 );
P2( C, D, E, A, B, 1, 12, 2, 13 );
P2( B, C, D, E, A, 3, 13, 13, 6 );
P2( A, B, C, D, E, 8, 14, 14, 5 );
P2( E, A, B, C, D, 11, 11, 0, 15 );
P2( D, E, A, B, C, 6, 8, 3, 13 );
P2( C, D, E, A, B, 15, 5, 9, 11 );
P2( B, C, D, E, A, 13, 6, 11, 11 );
#undef F
#undef K
#undef Fp
#undef Kp
C = ctx->state[1] + C + Dp;
ctx->state[1] = ctx->state[2] + D + Ep;
ctx->state[2] = ctx->state[3] + E + Ap;
ctx->state[3] = ctx->state[4] + A + Bp;
ctx->state[4] = ctx->state[0] + B + Cp;
ctx->state[0] = C;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_ripemd160_process( mbedtls_ripemd160_context *ctx,
const unsigned char data[64] )
{
mbedtls_internal_ripemd160_process( ctx, data );
}
#endif
#endif /* !MBEDTLS_RIPEMD160_PROCESS_ALT */
/*
* RIPEMD-160 process buffer
*/
int mbedtls_ripemd160_update_ret( mbedtls_ripemd160_context *ctx,
const unsigned char *input,
size_t ilen )
{
int ret;
size_t fill;
uint32_t left;
if( ilen == 0 )
return( 0 );
left = ctx->total[0] & 0x3F;
fill = 64 - left;
ctx->total[0] += (uint32_t) ilen;
ctx->total[0] &= 0xFFFFFFFF;
if( ctx->total[0] < (uint32_t) ilen )
ctx->total[1]++;
if( left && ilen >= fill )
{
memcpy( (void *) (ctx->buffer + left), input, fill );
if( ( ret = mbedtls_internal_ripemd160_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
input += fill;
ilen -= fill;
left = 0;
}
while( ilen >= 64 )
{
if( ( ret = mbedtls_internal_ripemd160_process( ctx, input ) ) != 0 )
return( ret );
input += 64;
ilen -= 64;
}
if( ilen > 0 )
{
memcpy( (void *) (ctx->buffer + left), input, ilen );
}
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_ripemd160_update( mbedtls_ripemd160_context *ctx,
const unsigned char *input,
size_t ilen )
{
mbedtls_ripemd160_update_ret( ctx, input, ilen );
}
#endif
static const unsigned char ripemd160_padding[64] =
{
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
/*
* RIPEMD-160 final digest
*/
int mbedtls_ripemd160_finish_ret( mbedtls_ripemd160_context *ctx,
unsigned char output[20] )
{
int ret;
uint32_t last, padn;
uint32_t high, low;
unsigned char msglen[8];
high = ( ctx->total[0] >> 29 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );
PUT_UINT32_LE( low, msglen, 0 );
PUT_UINT32_LE( high, msglen, 4 );
last = ctx->total[0] & 0x3F;
padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );
ret = mbedtls_ripemd160_update_ret( ctx, ripemd160_padding, padn );
if( ret != 0 )
return( ret );
ret = mbedtls_ripemd160_update_ret( ctx, msglen, 8 );
if( ret != 0 )
return( ret );
PUT_UINT32_LE( ctx->state[0], output, 0 );
PUT_UINT32_LE( ctx->state[1], output, 4 );
PUT_UINT32_LE( ctx->state[2], output, 8 );
PUT_UINT32_LE( ctx->state[3], output, 12 );
PUT_UINT32_LE( ctx->state[4], output, 16 );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_ripemd160_finish( mbedtls_ripemd160_context *ctx,
unsigned char output[20] )
{
mbedtls_ripemd160_finish_ret( ctx, output );
}
#endif
#endif /* ! MBEDTLS_RIPEMD160_ALT */
/*
* output = RIPEMD-160( input buffer )
*/
int mbedtls_ripemd160_ret( const unsigned char *input,
size_t ilen,
unsigned char output[20] )
{
int ret;
mbedtls_ripemd160_context ctx;
mbedtls_ripemd160_init( &ctx );
if( ( ret = mbedtls_ripemd160_starts_ret( &ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_ripemd160_update_ret( &ctx, input, ilen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_ripemd160_finish_ret( &ctx, output ) ) != 0 )
goto exit;
exit:
mbedtls_ripemd160_free( &ctx );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_ripemd160( const unsigned char *input,
size_t ilen,
unsigned char output[20] )
{
mbedtls_ripemd160_ret( input, ilen, output );
}
#endif
#if defined(MBEDTLS_SELF_TEST)
/*
* Test vectors from the RIPEMD-160 paper and
* http://homes.esat.kuleuven.be/~bosselae/mbedtls_ripemd160.html#HMAC
*/
#define TESTS 8
static const unsigned char ripemd160_test_str[TESTS][81] =
{
{ "" },
{ "a" },
{ "abc" },
{ "message digest" },
{ "abcdefghijklmnopqrstuvwxyz" },
{ "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
{ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789" },
{ "12345678901234567890123456789012345678901234567890123456789012"
"345678901234567890" },
};
static const size_t ripemd160_test_strlen[TESTS] =
{
0, 1, 3, 14, 26, 56, 62, 80
};
static const unsigned char ripemd160_test_md[TESTS][20] =
{
{ 0x9c, 0x11, 0x85, 0xa5, 0xc5, 0xe9, 0xfc, 0x54, 0x61, 0x28,
0x08, 0x97, 0x7e, 0xe8, 0xf5, 0x48, 0xb2, 0x25, 0x8d, 0x31 },
{ 0x0b, 0xdc, 0x9d, 0x2d, 0x25, 0x6b, 0x3e, 0xe9, 0xda, 0xae,
0x34, 0x7b, 0xe6, 0xf4, 0xdc, 0x83, 0x5a, 0x46, 0x7f, 0xfe },
{ 0x8e, 0xb2, 0x08, 0xf7, 0xe0, 0x5d, 0x98, 0x7a, 0x9b, 0x04,
0x4a, 0x8e, 0x98, 0xc6, 0xb0, 0x87, 0xf1, 0x5a, 0x0b, 0xfc },
{ 0x5d, 0x06, 0x89, 0xef, 0x49, 0xd2, 0xfa, 0xe5, 0x72, 0xb8,
0x81, 0xb1, 0x23, 0xa8, 0x5f, 0xfa, 0x21, 0x59, 0x5f, 0x36 },
{ 0xf7, 0x1c, 0x27, 0x10, 0x9c, 0x69, 0x2c, 0x1b, 0x56, 0xbb,
0xdc, 0xeb, 0x5b, 0x9d, 0x28, 0x65, 0xb3, 0x70, 0x8d, 0xbc },
{ 0x12, 0xa0, 0x53, 0x38, 0x4a, 0x9c, 0x0c, 0x88, 0xe4, 0x05,
0xa0, 0x6c, 0x27, 0xdc, 0xf4, 0x9a, 0xda, 0x62, 0xeb, 0x2b },
{ 0xb0, 0xe2, 0x0b, 0x6e, 0x31, 0x16, 0x64, 0x02, 0x86, 0xed,
0x3a, 0x87, 0xa5, 0x71, 0x30, 0x79, 0xb2, 0x1f, 0x51, 0x89 },
{ 0x9b, 0x75, 0x2e, 0x45, 0x57, 0x3d, 0x4b, 0x39, 0xf4, 0xdb,
0xd3, 0x32, 0x3c, 0xab, 0x82, 0xbf, 0x63, 0x32, 0x6b, 0xfb },
};
/*
* Checkup routine
*/
int mbedtls_ripemd160_self_test( int verbose )
{
int i, ret = 0;
unsigned char output[20];
memset( output, 0, sizeof output );
for( i = 0; i < TESTS; i++ )
{
if( verbose != 0 )
mbedtls_printf( " RIPEMD-160 test #%d: ", i + 1 );
ret = mbedtls_ripemd160_ret( ripemd160_test_str[i],
ripemd160_test_strlen[i], output );
if( ret != 0 )
goto fail;
if( memcmp( output, ripemd160_test_md[i], 20 ) != 0 )
{
ret = 1;
goto fail;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
fail:
if( verbose != 0 )
mbedtls_printf( "failed\n" );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_RIPEMD160_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/ripemd160.c | C | apache-2.0 | 15,724 |
/*
* The RSA public-key cryptosystem
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The following sources were referenced in the design of this implementation
* of the RSA algorithm:
*
* [1] A method for obtaining digital signatures and public-key cryptosystems
* R Rivest, A Shamir, and L Adleman
* http://people.csail.mit.edu/rivest/pubs.html#RSA78
*
* [2] Handbook of Applied Cryptography - 1997, Chapter 8
* Menezes, van Oorschot and Vanstone
*
* [3] Malware Guard Extension: Using SGX to Conceal Cache Attacks
* Michael Schwarz, Samuel Weiser, Daniel Gruss, Clémentine Maurice and
* Stefan Mangard
* https://arxiv.org/abs/1702.08719v2
*
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_RSA_C)
#include "mbedtls/rsa.h"
#include "mbedtls/rsa_internal.h"
#include "mbedtls/oid.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_PKCS1_V21)
#include "mbedtls/md.h"
#endif
#if defined(MBEDTLS_PKCS1_V15) && !defined(__OpenBSD__)
#include <stdlib.h>
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#if !defined(MBEDTLS_RSA_ALT)
/* Parameter validation macros */
#define RSA_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_RSA_BAD_INPUT_DATA )
#define RSA_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
#if defined(MBEDTLS_PKCS1_V15)
/* constant-time buffer comparison */
static inline int mbedtls_safer_memcmp( const void *a, const void *b, size_t n )
{
size_t i;
const unsigned char *A = (const unsigned char *) a;
const unsigned char *B = (const unsigned char *) b;
unsigned char diff = 0;
for( i = 0; i < n; i++ )
diff |= A[i] ^ B[i];
return( diff );
}
#endif /* MBEDTLS_PKCS1_V15 */
int mbedtls_rsa_import( mbedtls_rsa_context *ctx,
const mbedtls_mpi *N,
const mbedtls_mpi *P, const mbedtls_mpi *Q,
const mbedtls_mpi *D, const mbedtls_mpi *E )
{
int ret;
RSA_VALIDATE_RET( ctx != NULL );
if( ( N != NULL && ( ret = mbedtls_mpi_copy( &ctx->N, N ) ) != 0 ) ||
( P != NULL && ( ret = mbedtls_mpi_copy( &ctx->P, P ) ) != 0 ) ||
( Q != NULL && ( ret = mbedtls_mpi_copy( &ctx->Q, Q ) ) != 0 ) ||
( D != NULL && ( ret = mbedtls_mpi_copy( &ctx->D, D ) ) != 0 ) ||
( E != NULL && ( ret = mbedtls_mpi_copy( &ctx->E, E ) ) != 0 ) )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA + ret );
}
if( N != NULL )
ctx->len = mbedtls_mpi_size( &ctx->N );
return( 0 );
}
int mbedtls_rsa_import_raw( mbedtls_rsa_context *ctx,
unsigned char const *N, size_t N_len,
unsigned char const *P, size_t P_len,
unsigned char const *Q, size_t Q_len,
unsigned char const *D, size_t D_len,
unsigned char const *E, size_t E_len )
{
int ret = 0;
RSA_VALIDATE_RET( ctx != NULL );
if( N != NULL )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->N, N, N_len ) );
ctx->len = mbedtls_mpi_size( &ctx->N );
}
if( P != NULL )
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->P, P, P_len ) );
if( Q != NULL )
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->Q, Q, Q_len ) );
if( D != NULL )
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->D, D, D_len ) );
if( E != NULL )
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->E, E, E_len ) );
cleanup:
if( ret != 0 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA + ret );
return( 0 );
}
/*
* Checks whether the context fields are set in such a way
* that the RSA primitives will be able to execute without error.
* It does *not* make guarantees for consistency of the parameters.
*/
static int rsa_check_context( mbedtls_rsa_context const *ctx, int is_priv,
int blinding_needed )
{
#if !defined(MBEDTLS_RSA_NO_CRT)
/* blinding_needed is only used for NO_CRT to decide whether
* P,Q need to be present or not. */
((void) blinding_needed);
#endif
if( ctx->len != mbedtls_mpi_size( &ctx->N ) ||
ctx->len > MBEDTLS_MPI_MAX_SIZE )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
/*
* 1. Modular exponentiation needs positive, odd moduli.
*/
/* Modular exponentiation wrt. N is always used for
* RSA public key operations. */
if( mbedtls_mpi_cmp_int( &ctx->N, 0 ) <= 0 ||
mbedtls_mpi_get_bit( &ctx->N, 0 ) == 0 )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
#if !defined(MBEDTLS_RSA_NO_CRT)
/* Modular exponentiation for P and Q is only
* used for private key operations and if CRT
* is used. */
if( is_priv &&
( mbedtls_mpi_cmp_int( &ctx->P, 0 ) <= 0 ||
mbedtls_mpi_get_bit( &ctx->P, 0 ) == 0 ||
mbedtls_mpi_cmp_int( &ctx->Q, 0 ) <= 0 ||
mbedtls_mpi_get_bit( &ctx->Q, 0 ) == 0 ) )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
#endif /* !MBEDTLS_RSA_NO_CRT */
/*
* 2. Exponents must be positive
*/
/* Always need E for public key operations */
if( mbedtls_mpi_cmp_int( &ctx->E, 0 ) <= 0 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
#if defined(MBEDTLS_RSA_NO_CRT)
/* For private key operations, use D or DP & DQ
* as (unblinded) exponents. */
if( is_priv && mbedtls_mpi_cmp_int( &ctx->D, 0 ) <= 0 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
#else
if( is_priv &&
( mbedtls_mpi_cmp_int( &ctx->DP, 0 ) <= 0 ||
mbedtls_mpi_cmp_int( &ctx->DQ, 0 ) <= 0 ) )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
#endif /* MBEDTLS_RSA_NO_CRT */
/* Blinding shouldn't make exponents negative either,
* so check that P, Q >= 1 if that hasn't yet been
* done as part of 1. */
#if defined(MBEDTLS_RSA_NO_CRT)
if( is_priv && blinding_needed &&
( mbedtls_mpi_cmp_int( &ctx->P, 0 ) <= 0 ||
mbedtls_mpi_cmp_int( &ctx->Q, 0 ) <= 0 ) )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
#endif
/* It wouldn't lead to an error if it wasn't satisfied,
* but check for QP >= 1 nonetheless. */
#if !defined(MBEDTLS_RSA_NO_CRT)
if( is_priv &&
mbedtls_mpi_cmp_int( &ctx->QP, 0 ) <= 0 )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
#endif
return( 0 );
}
int mbedtls_rsa_complete( mbedtls_rsa_context *ctx )
{
int ret = 0;
int have_N, have_P, have_Q, have_D, have_E;
int n_missing, pq_missing, d_missing, is_pub, is_priv;
RSA_VALIDATE_RET( ctx != NULL );
have_N = ( mbedtls_mpi_cmp_int( &ctx->N, 0 ) != 0 );
have_P = ( mbedtls_mpi_cmp_int( &ctx->P, 0 ) != 0 );
have_Q = ( mbedtls_mpi_cmp_int( &ctx->Q, 0 ) != 0 );
have_D = ( mbedtls_mpi_cmp_int( &ctx->D, 0 ) != 0 );
have_E = ( mbedtls_mpi_cmp_int( &ctx->E, 0 ) != 0 );
/*
* Check whether provided parameters are enough
* to deduce all others. The following incomplete
* parameter sets for private keys are supported:
*
* (1) P, Q missing.
* (2) D and potentially N missing.
*
*/
n_missing = have_P && have_Q && have_D && have_E;
pq_missing = have_N && !have_P && !have_Q && have_D && have_E;
d_missing = have_P && have_Q && !have_D && have_E;
is_pub = have_N && !have_P && !have_Q && !have_D && have_E;
/* These three alternatives are mutually exclusive */
is_priv = n_missing || pq_missing || d_missing;
if( !is_priv && !is_pub )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
/*
* Step 1: Deduce N if P, Q are provided.
*/
if( !have_N && have_P && have_Q )
{
if( ( ret = mbedtls_mpi_mul_mpi( &ctx->N, &ctx->P,
&ctx->Q ) ) != 0 )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA + ret );
}
ctx->len = mbedtls_mpi_size( &ctx->N );
}
/*
* Step 2: Deduce and verify all remaining core parameters.
*/
if( pq_missing )
{
ret = mbedtls_rsa_deduce_primes( &ctx->N, &ctx->E, &ctx->D,
&ctx->P, &ctx->Q );
if( ret != 0 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA + ret );
}
else if( d_missing )
{
if( ( ret = mbedtls_rsa_deduce_private_exponent( &ctx->P,
&ctx->Q,
&ctx->E,
&ctx->D ) ) != 0 )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA + ret );
}
}
/*
* Step 3: Deduce all additional parameters specific
* to our current RSA implementation.
*/
#if !defined(MBEDTLS_RSA_NO_CRT)
if( is_priv )
{
ret = mbedtls_rsa_deduce_crt( &ctx->P, &ctx->Q, &ctx->D,
&ctx->DP, &ctx->DQ, &ctx->QP );
if( ret != 0 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA + ret );
}
#endif /* MBEDTLS_RSA_NO_CRT */
/*
* Step 3: Basic sanity checks
*/
return( rsa_check_context( ctx, is_priv, 1 ) );
}
int mbedtls_rsa_export_raw( const mbedtls_rsa_context *ctx,
unsigned char *N, size_t N_len,
unsigned char *P, size_t P_len,
unsigned char *Q, size_t Q_len,
unsigned char *D, size_t D_len,
unsigned char *E, size_t E_len )
{
int ret = 0;
int is_priv;
RSA_VALIDATE_RET( ctx != NULL );
/* Check if key is private or public */
is_priv =
mbedtls_mpi_cmp_int( &ctx->N, 0 ) != 0 &&
mbedtls_mpi_cmp_int( &ctx->P, 0 ) != 0 &&
mbedtls_mpi_cmp_int( &ctx->Q, 0 ) != 0 &&
mbedtls_mpi_cmp_int( &ctx->D, 0 ) != 0 &&
mbedtls_mpi_cmp_int( &ctx->E, 0 ) != 0;
if( !is_priv )
{
/* If we're trying to export private parameters for a public key,
* something must be wrong. */
if( P != NULL || Q != NULL || D != NULL )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
if( N != NULL )
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->N, N, N_len ) );
if( P != NULL )
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->P, P, P_len ) );
if( Q != NULL )
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->Q, Q, Q_len ) );
if( D != NULL )
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->D, D, D_len ) );
if( E != NULL )
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &ctx->E, E, E_len ) );
cleanup:
return( ret );
}
int mbedtls_rsa_export( const mbedtls_rsa_context *ctx,
mbedtls_mpi *N, mbedtls_mpi *P, mbedtls_mpi *Q,
mbedtls_mpi *D, mbedtls_mpi *E )
{
int ret;
int is_priv;
RSA_VALIDATE_RET( ctx != NULL );
/* Check if key is private or public */
is_priv =
mbedtls_mpi_cmp_int( &ctx->N, 0 ) != 0 &&
mbedtls_mpi_cmp_int( &ctx->P, 0 ) != 0 &&
mbedtls_mpi_cmp_int( &ctx->Q, 0 ) != 0 &&
mbedtls_mpi_cmp_int( &ctx->D, 0 ) != 0 &&
mbedtls_mpi_cmp_int( &ctx->E, 0 ) != 0;
if( !is_priv )
{
/* If we're trying to export private parameters for a public key,
* something must be wrong. */
if( P != NULL || Q != NULL || D != NULL )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
/* Export all requested core parameters. */
if( ( N != NULL && ( ret = mbedtls_mpi_copy( N, &ctx->N ) ) != 0 ) ||
( P != NULL && ( ret = mbedtls_mpi_copy( P, &ctx->P ) ) != 0 ) ||
( Q != NULL && ( ret = mbedtls_mpi_copy( Q, &ctx->Q ) ) != 0 ) ||
( D != NULL && ( ret = mbedtls_mpi_copy( D, &ctx->D ) ) != 0 ) ||
( E != NULL && ( ret = mbedtls_mpi_copy( E, &ctx->E ) ) != 0 ) )
{
return( ret );
}
return( 0 );
}
/*
* Export CRT parameters
* This must also be implemented if CRT is not used, for being able to
* write DER encoded RSA keys. The helper function mbedtls_rsa_deduce_crt
* can be used in this case.
*/
int mbedtls_rsa_export_crt( const mbedtls_rsa_context *ctx,
mbedtls_mpi *DP, mbedtls_mpi *DQ, mbedtls_mpi *QP )
{
int ret;
int is_priv;
RSA_VALIDATE_RET( ctx != NULL );
/* Check if key is private or public */
is_priv =
mbedtls_mpi_cmp_int( &ctx->N, 0 ) != 0 &&
mbedtls_mpi_cmp_int( &ctx->P, 0 ) != 0 &&
mbedtls_mpi_cmp_int( &ctx->Q, 0 ) != 0 &&
mbedtls_mpi_cmp_int( &ctx->D, 0 ) != 0 &&
mbedtls_mpi_cmp_int( &ctx->E, 0 ) != 0;
if( !is_priv )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
#if !defined(MBEDTLS_RSA_NO_CRT)
/* Export all requested blinding parameters. */
if( ( DP != NULL && ( ret = mbedtls_mpi_copy( DP, &ctx->DP ) ) != 0 ) ||
( DQ != NULL && ( ret = mbedtls_mpi_copy( DQ, &ctx->DQ ) ) != 0 ) ||
( QP != NULL && ( ret = mbedtls_mpi_copy( QP, &ctx->QP ) ) != 0 ) )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA + ret );
}
#else
if( ( ret = mbedtls_rsa_deduce_crt( &ctx->P, &ctx->Q, &ctx->D,
DP, DQ, QP ) ) != 0 )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA + ret );
}
#endif
return( 0 );
}
/*
* Initialize an RSA context
*/
void mbedtls_rsa_init( mbedtls_rsa_context *ctx,
int padding,
int hash_id )
{
RSA_VALIDATE( ctx != NULL );
RSA_VALIDATE( padding == MBEDTLS_RSA_PKCS_V15 ||
padding == MBEDTLS_RSA_PKCS_V21 );
memset( ctx, 0, sizeof( mbedtls_rsa_context ) );
mbedtls_rsa_set_padding( ctx, padding, hash_id );
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_init( &ctx->mutex );
#endif
}
/*
* Set padding for an existing RSA context
*/
void mbedtls_rsa_set_padding( mbedtls_rsa_context *ctx, int padding,
int hash_id )
{
RSA_VALIDATE( ctx != NULL );
RSA_VALIDATE( padding == MBEDTLS_RSA_PKCS_V15 ||
padding == MBEDTLS_RSA_PKCS_V21 );
ctx->padding = padding;
ctx->hash_id = hash_id;
}
/*
* Get length in bytes of RSA modulus
*/
size_t mbedtls_rsa_get_len( const mbedtls_rsa_context *ctx )
{
return( ctx->len );
}
#if defined(MBEDTLS_GENPRIME)
/*
* Generate an RSA keypair
*
* This generation method follows the RSA key pair generation procedure of
* FIPS 186-4 if 2^16 < exponent < 2^256 and nbits = 2048 or nbits = 3072.
*/
int mbedtls_rsa_gen_key( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
unsigned int nbits, int exponent )
{
int ret;
mbedtls_mpi H, G, L;
int prime_quality = 0;
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( f_rng != NULL );
if( nbits < 128 || exponent < 3 || nbits % 2 != 0 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
/*
* If the modulus is 1024 bit long or shorter, then the security strength of
* the RSA algorithm is less than or equal to 80 bits and therefore an error
* rate of 2^-80 is sufficient.
*/
if( nbits > 1024 )
prime_quality = MBEDTLS_MPI_GEN_PRIME_FLAG_LOW_ERR;
mbedtls_mpi_init( &H );
mbedtls_mpi_init( &G );
mbedtls_mpi_init( &L );
/*
* find primes P and Q with Q < P so that:
* 1. |P-Q| > 2^( nbits / 2 - 100 )
* 2. GCD( E, (P-1)*(Q-1) ) == 1
* 3. E^-1 mod LCM(P-1, Q-1) > 2^( nbits / 2 )
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_lset( &ctx->E, exponent ) );
do
{
MBEDTLS_MPI_CHK( mbedtls_mpi_gen_prime( &ctx->P, nbits >> 1,
prime_quality, f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_gen_prime( &ctx->Q, nbits >> 1,
prime_quality, f_rng, p_rng ) );
/* make sure the difference between p and q is not too small (FIPS 186-4 §B.3.3 step 5.4) */
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &H, &ctx->P, &ctx->Q ) );
if( mbedtls_mpi_bitlen( &H ) <= ( ( nbits >= 200 ) ? ( ( nbits >> 1 ) - 99 ) : 0 ) )
continue;
/* not required by any standards, but some users rely on the fact that P > Q */
if( H.s < 0 )
mbedtls_mpi_swap( &ctx->P, &ctx->Q );
/* Temporarily replace P,Q by P-1, Q-1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &ctx->P, &ctx->P, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &ctx->Q, &ctx->Q, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &H, &ctx->P, &ctx->Q ) );
/* check GCD( E, (P-1)*(Q-1) ) == 1 (FIPS 186-4 §B.3.1 criterion 2(a)) */
MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &G, &ctx->E, &H ) );
if( mbedtls_mpi_cmp_int( &G, 1 ) != 0 )
continue;
/* compute smallest possible D = E^-1 mod LCM(P-1, Q-1) (FIPS 186-4 §B.3.1 criterion 3(b)) */
MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &G, &ctx->P, &ctx->Q ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_div_mpi( &L, NULL, &H, &G ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &ctx->D, &ctx->E, &L ) );
if( mbedtls_mpi_bitlen( &ctx->D ) <= ( ( nbits + 1 ) / 2 ) ) // (FIPS 186-4 §B.3.1 criterion 3(a))
continue;
break;
}
while( 1 );
/* Restore P,Q */
MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( &ctx->P, &ctx->P, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( &ctx->Q, &ctx->Q, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->N, &ctx->P, &ctx->Q ) );
ctx->len = mbedtls_mpi_size( &ctx->N );
#if !defined(MBEDTLS_RSA_NO_CRT)
/*
* DP = D mod (P - 1)
* DQ = D mod (Q - 1)
* QP = Q^-1 mod P
*/
MBEDTLS_MPI_CHK( mbedtls_rsa_deduce_crt( &ctx->P, &ctx->Q, &ctx->D,
&ctx->DP, &ctx->DQ, &ctx->QP ) );
#endif /* MBEDTLS_RSA_NO_CRT */
/* Double-check */
MBEDTLS_MPI_CHK( mbedtls_rsa_check_privkey( ctx ) );
cleanup:
mbedtls_mpi_free( &H );
mbedtls_mpi_free( &G );
mbedtls_mpi_free( &L );
if( ret != 0 )
{
mbedtls_rsa_free( ctx );
return( MBEDTLS_ERR_RSA_KEY_GEN_FAILED + ret );
}
return( 0 );
}
#endif /* MBEDTLS_GENPRIME */
/*
* Check a public RSA key
*/
int mbedtls_rsa_check_pubkey( const mbedtls_rsa_context *ctx )
{
RSA_VALIDATE_RET( ctx != NULL );
if( rsa_check_context( ctx, 0 /* public */, 0 /* no blinding */ ) != 0 )
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
if( mbedtls_mpi_bitlen( &ctx->N ) < 128 )
{
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
}
if( mbedtls_mpi_get_bit( &ctx->E, 0 ) == 0 ||
mbedtls_mpi_bitlen( &ctx->E ) < 2 ||
mbedtls_mpi_cmp_mpi( &ctx->E, &ctx->N ) >= 0 )
{
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
}
return( 0 );
}
/*
* Check for the consistency of all fields in an RSA private key context
*/
int mbedtls_rsa_check_privkey( const mbedtls_rsa_context *ctx )
{
RSA_VALIDATE_RET( ctx != NULL );
if( mbedtls_rsa_check_pubkey( ctx ) != 0 ||
rsa_check_context( ctx, 1 /* private */, 1 /* blinding */ ) != 0 )
{
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
}
if( mbedtls_rsa_validate_params( &ctx->N, &ctx->P, &ctx->Q,
&ctx->D, &ctx->E, NULL, NULL ) != 0 )
{
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
}
#if !defined(MBEDTLS_RSA_NO_CRT)
else if( mbedtls_rsa_validate_crt( &ctx->P, &ctx->Q, &ctx->D,
&ctx->DP, &ctx->DQ, &ctx->QP ) != 0 )
{
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
}
#endif
return( 0 );
}
/*
* Check if contexts holding a public and private key match
*/
int mbedtls_rsa_check_pub_priv( const mbedtls_rsa_context *pub,
const mbedtls_rsa_context *prv )
{
RSA_VALIDATE_RET( pub != NULL );
RSA_VALIDATE_RET( prv != NULL );
if( mbedtls_rsa_check_pubkey( pub ) != 0 ||
mbedtls_rsa_check_privkey( prv ) != 0 )
{
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
}
if( mbedtls_mpi_cmp_mpi( &pub->N, &prv->N ) != 0 ||
mbedtls_mpi_cmp_mpi( &pub->E, &prv->E ) != 0 )
{
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
}
return( 0 );
}
/*
* Do an RSA public key operation
*/
int mbedtls_rsa_public( mbedtls_rsa_context *ctx,
const unsigned char *input,
unsigned char *output )
{
int ret;
size_t olen;
mbedtls_mpi T;
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( input != NULL );
RSA_VALIDATE_RET( output != NULL );
if( rsa_check_context( ctx, 0 /* public */, 0 /* no blinding */ ) )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
mbedtls_mpi_init( &T );
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &T, input, ctx->len ) );
if( mbedtls_mpi_cmp_mpi( &T, &ctx->N ) >= 0 )
{
ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
goto cleanup;
}
olen = ctx->len;
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &T, &T, &ctx->E, &ctx->N, &ctx->RN ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &T, output, olen ) );
cleanup:
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
mbedtls_mpi_free( &T );
if( ret != 0 )
return( MBEDTLS_ERR_RSA_PUBLIC_FAILED + ret );
return( 0 );
}
/*
* Generate or update blinding values, see section 10 of:
* KOCHER, Paul C. Timing attacks on implementations of Diffie-Hellman, RSA,
* DSS, and other systems. In : Advances in Cryptology-CRYPTO'96. Springer
* Berlin Heidelberg, 1996. p. 104-113.
*/
static int rsa_prepare_blinding( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng )
{
int ret, count = 0;
if( ctx->Vf.p != NULL )
{
/* We already have blinding values, just update them by squaring */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vi, &ctx->Vi, &ctx->Vi ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vi, &ctx->Vi, &ctx->N ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &ctx->Vf, &ctx->Vf, &ctx->Vf ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &ctx->Vf, &ctx->Vf, &ctx->N ) );
goto cleanup;
}
/* Unblinding value: Vf = random number, invertible mod N */
do {
if( count++ > 10 )
return( MBEDTLS_ERR_RSA_RNG_FAILED );
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &ctx->Vf, ctx->len - 1, f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( &ctx->Vi, &ctx->Vf, &ctx->N ) );
} while( mbedtls_mpi_cmp_int( &ctx->Vi, 1 ) != 0 );
/* Blinding value: Vi = Vf^(-e) mod N */
MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( &ctx->Vi, &ctx->Vf, &ctx->N ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &ctx->Vi, &ctx->Vi, &ctx->E, &ctx->N, &ctx->RN ) );
cleanup:
return( ret );
}
/*
* Exponent blinding supposed to prevent side-channel attacks using multiple
* traces of measurements to recover the RSA key. The more collisions are there,
* the more bits of the key can be recovered. See [3].
*
* Collecting n collisions with m bit long blinding value requires 2^(m-m/n)
* observations on avarage.
*
* For example with 28 byte blinding to achieve 2 collisions the adversary has
* to make 2^112 observations on avarage.
*
* (With the currently (as of 2017 April) known best algorithms breaking 2048
* bit RSA requires approximately as much time as trying out 2^112 random keys.
* Thus in this sense with 28 byte blinding the security is not reduced by
* side-channel attacks like the one in [3])
*
* This countermeasure does not help if the key recovery is possible with a
* single trace.
*/
#define RSA_EXPONENT_BLINDING 28
/*
* Do an RSA private key operation
*/
int mbedtls_rsa_private( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
const unsigned char *input,
unsigned char *output )
{
int ret;
size_t olen;
/* Temporary holding the result */
mbedtls_mpi T;
/* Temporaries holding P-1, Q-1 and the
* exponent blinding factor, respectively. */
mbedtls_mpi P1, Q1, R;
#if !defined(MBEDTLS_RSA_NO_CRT)
/* Temporaries holding the results mod p resp. mod q. */
mbedtls_mpi TP, TQ;
/* Temporaries holding the blinded exponents for
* the mod p resp. mod q computation (if used). */
mbedtls_mpi DP_blind, DQ_blind;
/* Pointers to actual exponents to be used - either the unblinded
* or the blinded ones, depending on the presence of a PRNG. */
mbedtls_mpi *DP = &ctx->DP;
mbedtls_mpi *DQ = &ctx->DQ;
#else
/* Temporary holding the blinded exponent (if used). */
mbedtls_mpi D_blind;
/* Pointer to actual exponent to be used - either the unblinded
* or the blinded one, depending on the presence of a PRNG. */
mbedtls_mpi *D = &ctx->D;
#endif /* MBEDTLS_RSA_NO_CRT */
/* Temporaries holding the initial input and the double
* checked result; should be the same in the end. */
mbedtls_mpi I, C;
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( input != NULL );
RSA_VALIDATE_RET( output != NULL );
if( rsa_check_context( ctx, 1 /* private key checks */,
f_rng != NULL /* blinding y/n */ ) != 0 )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
/* MPI Initialization */
mbedtls_mpi_init( &T );
mbedtls_mpi_init( &P1 );
mbedtls_mpi_init( &Q1 );
mbedtls_mpi_init( &R );
if( f_rng != NULL )
{
#if defined(MBEDTLS_RSA_NO_CRT)
mbedtls_mpi_init( &D_blind );
#else
mbedtls_mpi_init( &DP_blind );
mbedtls_mpi_init( &DQ_blind );
#endif
}
#if !defined(MBEDTLS_RSA_NO_CRT)
mbedtls_mpi_init( &TP ); mbedtls_mpi_init( &TQ );
#endif
mbedtls_mpi_init( &I );
mbedtls_mpi_init( &C );
/* End of MPI initialization */
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &T, input, ctx->len ) );
if( mbedtls_mpi_cmp_mpi( &T, &ctx->N ) >= 0 )
{
ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &I, &T ) );
if( f_rng != NULL )
{
/*
* Blinding
* T = T * Vi mod N
*/
MBEDTLS_MPI_CHK( rsa_prepare_blinding( ctx, f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &T, &ctx->Vi ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &T, &T, &ctx->N ) );
/*
* Exponent blinding
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &P1, &ctx->P, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &Q1, &ctx->Q, 1 ) );
#if defined(MBEDTLS_RSA_NO_CRT)
/*
* D_blind = ( P - 1 ) * ( Q - 1 ) * R + D
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &R, RSA_EXPONENT_BLINDING,
f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &D_blind, &P1, &Q1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &D_blind, &D_blind, &R ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &D_blind, &D_blind, &ctx->D ) );
D = &D_blind;
#else
/*
* DP_blind = ( P - 1 ) * R + DP
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &R, RSA_EXPONENT_BLINDING,
f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &DP_blind, &P1, &R ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &DP_blind, &DP_blind,
&ctx->DP ) );
DP = &DP_blind;
/*
* DQ_blind = ( Q - 1 ) * R + DQ
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_fill_random( &R, RSA_EXPONENT_BLINDING,
f_rng, p_rng ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &DQ_blind, &Q1, &R ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &DQ_blind, &DQ_blind,
&ctx->DQ ) );
DQ = &DQ_blind;
#endif /* MBEDTLS_RSA_NO_CRT */
}
#if defined(MBEDTLS_RSA_NO_CRT)
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &T, &T, D, &ctx->N, &ctx->RN ) );
#else
/*
* Faster decryption using the CRT
*
* TP = input ^ dP mod P
* TQ = input ^ dQ mod Q
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &TP, &T, DP, &ctx->P, &ctx->RP ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &TQ, &T, DQ, &ctx->Q, &ctx->RQ ) );
/*
* T = (TP - TQ) * (Q^-1 mod P) mod P
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &T, &TP, &TQ ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &TP, &T, &ctx->QP ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &T, &TP, &ctx->P ) );
/*
* T = TQ + T * Q
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &TP, &T, &ctx->Q ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_add_mpi( &T, &TQ, &TP ) );
#endif /* MBEDTLS_RSA_NO_CRT */
if( f_rng != NULL )
{
/*
* Unblind
* T = T * Vf mod N
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, &T, &ctx->Vf ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &T, &T, &ctx->N ) );
}
/* Verify the result to prevent glitching attacks. */
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &C, &T, &ctx->E,
&ctx->N, &ctx->RN ) );
if( mbedtls_mpi_cmp_mpi( &C, &I ) != 0 )
{
ret = MBEDTLS_ERR_RSA_VERIFY_FAILED;
goto cleanup;
}
olen = ctx->len;
MBEDTLS_MPI_CHK( mbedtls_mpi_write_binary( &T, output, olen ) );
cleanup:
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
mbedtls_mpi_free( &P1 );
mbedtls_mpi_free( &Q1 );
mbedtls_mpi_free( &R );
if( f_rng != NULL )
{
#if defined(MBEDTLS_RSA_NO_CRT)
mbedtls_mpi_free( &D_blind );
#else
mbedtls_mpi_free( &DP_blind );
mbedtls_mpi_free( &DQ_blind );
#endif
}
mbedtls_mpi_free( &T );
#if !defined(MBEDTLS_RSA_NO_CRT)
mbedtls_mpi_free( &TP ); mbedtls_mpi_free( &TQ );
#endif
mbedtls_mpi_free( &C );
mbedtls_mpi_free( &I );
if( ret != 0 )
return( MBEDTLS_ERR_RSA_PRIVATE_FAILED + ret );
return( 0 );
}
#if defined(MBEDTLS_PKCS1_V21)
/**
* Generate and apply the MGF1 operation (from PKCS#1 v2.1) to a buffer.
*
* \param dst buffer to mask
* \param dlen length of destination buffer
* \param src source of the mask generation
* \param slen length of the source buffer
* \param md_ctx message digest context to use
*/
static int mgf_mask( unsigned char *dst, size_t dlen, unsigned char *src,
size_t slen, mbedtls_md_context_t *md_ctx )
{
unsigned char mask[MBEDTLS_MD_MAX_SIZE];
unsigned char counter[4];
unsigned char *p;
unsigned int hlen;
size_t i, use_len;
int ret = 0;
memset( mask, 0, MBEDTLS_MD_MAX_SIZE );
memset( counter, 0, 4 );
hlen = mbedtls_md_get_size( md_ctx->md_info );
/* Generate and apply dbMask */
p = dst;
while( dlen > 0 )
{
use_len = hlen;
if( dlen < hlen )
use_len = dlen;
if( ( ret = mbedtls_md_starts( md_ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_update( md_ctx, src, slen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_update( md_ctx, counter, 4 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_finish( md_ctx, mask ) ) != 0 )
goto exit;
for( i = 0; i < use_len; ++i )
*p++ ^= mask[i];
counter[3]++;
dlen -= use_len;
}
exit:
mbedtls_platform_zeroize( mask, sizeof( mask ) );
return( ret );
}
#endif /* MBEDTLS_PKCS1_V21 */
#if defined(MBEDTLS_PKCS1_V21)
/*
* Implementation of the PKCS#1 v2.1 RSAES-OAEP-ENCRYPT function
*/
int mbedtls_rsa_rsaes_oaep_encrypt( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode,
const unsigned char *label, size_t label_len,
size_t ilen,
const unsigned char *input,
unsigned char *output )
{
size_t olen;
int ret;
unsigned char *p = output;
unsigned int hlen;
const mbedtls_md_info_t *md_info;
mbedtls_md_context_t md_ctx;
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
mode == MBEDTLS_RSA_PUBLIC );
RSA_VALIDATE_RET( output != NULL );
RSA_VALIDATE_RET( input != NULL );
RSA_VALIDATE_RET( label_len == 0 || label != NULL );
if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
if( f_rng == NULL )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
md_info = mbedtls_md_info_from_type( (mbedtls_md_type_t) ctx->hash_id );
if( md_info == NULL )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
olen = ctx->len;
hlen = mbedtls_md_get_size( md_info );
/* first comparison checks for overflow */
if( ilen + 2 * hlen + 2 < ilen || olen < ilen + 2 * hlen + 2 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
memset( output, 0, olen );
*p++ = 0;
/* Generate a random octet string seed */
if( ( ret = f_rng( p_rng, p, hlen ) ) != 0 )
return( MBEDTLS_ERR_RSA_RNG_FAILED + ret );
p += hlen;
/* Construct DB */
if( ( ret = mbedtls_md( md_info, label, label_len, p ) ) != 0 )
return( ret );
p += hlen;
p += olen - 2 * hlen - 2 - ilen;
*p++ = 1;
memcpy( p, input, ilen );
mbedtls_md_init( &md_ctx );
if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 )
goto exit;
/* maskedDB: Apply dbMask to DB */
if( ( ret = mgf_mask( output + hlen + 1, olen - hlen - 1, output + 1, hlen,
&md_ctx ) ) != 0 )
goto exit;
/* maskedSeed: Apply seedMask to seed */
if( ( ret = mgf_mask( output + 1, hlen, output + hlen + 1, olen - hlen - 1,
&md_ctx ) ) != 0 )
goto exit;
exit:
mbedtls_md_free( &md_ctx );
if( ret != 0 )
return( ret );
return( ( mode == MBEDTLS_RSA_PUBLIC )
? mbedtls_rsa_public( ctx, output, output )
: mbedtls_rsa_private( ctx, f_rng, p_rng, output, output ) );
}
#endif /* MBEDTLS_PKCS1_V21 */
#if defined(MBEDTLS_PKCS1_V15)
/*
* Implementation of the PKCS#1 v2.1 RSAES-PKCS1-V1_5-ENCRYPT function
*/
int mbedtls_rsa_rsaes_pkcs1_v15_encrypt( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode, size_t ilen,
const unsigned char *input,
unsigned char *output )
{
size_t nb_pad, olen;
int ret;
unsigned char *p = output;
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
mode == MBEDTLS_RSA_PUBLIC );
RSA_VALIDATE_RET( output != NULL );
RSA_VALIDATE_RET( input != NULL );
if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
olen = ctx->len;
/* first comparison checks for overflow */
if( ilen + 11 < ilen || olen < ilen + 11 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
nb_pad = olen - 3 - ilen;
*p++ = 0;
if( mode == MBEDTLS_RSA_PUBLIC )
{
if( f_rng == NULL )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
*p++ = MBEDTLS_RSA_CRYPT;
while( nb_pad-- > 0 )
{
int rng_dl = 100;
do {
ret = f_rng( p_rng, p, 1 );
} while( *p == 0 && --rng_dl && ret == 0 );
/* Check if RNG failed to generate data */
if( rng_dl == 0 || ret != 0 )
return( MBEDTLS_ERR_RSA_RNG_FAILED + ret );
p++;
}
}
else
{
*p++ = MBEDTLS_RSA_SIGN;
while( nb_pad-- > 0 )
*p++ = 0xFF;
}
*p++ = 0;
memcpy( p, input, ilen );
return( ( mode == MBEDTLS_RSA_PUBLIC )
? mbedtls_rsa_public( ctx, output, output )
: mbedtls_rsa_private( ctx, f_rng, p_rng, output, output ) );
}
#endif /* MBEDTLS_PKCS1_V15 */
/*
* Add the message padding, then do an RSA operation
*/
int mbedtls_rsa_pkcs1_encrypt( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode, size_t ilen,
const unsigned char *input,
unsigned char *output )
{
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
mode == MBEDTLS_RSA_PUBLIC );
RSA_VALIDATE_RET( output != NULL );
RSA_VALIDATE_RET( input != NULL );
switch( ctx->padding )
{
#if defined(MBEDTLS_PKCS1_V15)
case MBEDTLS_RSA_PKCS_V15:
return mbedtls_rsa_rsaes_pkcs1_v15_encrypt( ctx, f_rng, p_rng, mode, ilen,
input, output );
#endif
#if defined(MBEDTLS_PKCS1_V21)
case MBEDTLS_RSA_PKCS_V21:
return mbedtls_rsa_rsaes_oaep_encrypt( ctx, f_rng, p_rng, mode, NULL, 0,
ilen, input, output );
#endif
default:
return( MBEDTLS_ERR_RSA_INVALID_PADDING );
}
}
#if defined(MBEDTLS_PKCS1_V21)
/*
* Implementation of the PKCS#1 v2.1 RSAES-OAEP-DECRYPT function
*/
int mbedtls_rsa_rsaes_oaep_decrypt( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode,
const unsigned char *label, size_t label_len,
size_t *olen,
const unsigned char *input,
unsigned char *output,
size_t output_max_len )
{
int ret;
size_t ilen, i, pad_len;
unsigned char *p, bad, pad_done;
unsigned char buf[MBEDTLS_MPI_MAX_SIZE];
unsigned char lhash[MBEDTLS_MD_MAX_SIZE];
unsigned int hlen;
const mbedtls_md_info_t *md_info;
mbedtls_md_context_t md_ctx;
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
mode == MBEDTLS_RSA_PUBLIC );
RSA_VALIDATE_RET( output_max_len == 0 || output != NULL );
RSA_VALIDATE_RET( label_len == 0 || label != NULL );
RSA_VALIDATE_RET( input != NULL );
RSA_VALIDATE_RET( olen != NULL );
/*
* Parameters sanity checks
*/
if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
ilen = ctx->len;
if( ilen < 16 || ilen > sizeof( buf ) )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
md_info = mbedtls_md_info_from_type( (mbedtls_md_type_t) ctx->hash_id );
if( md_info == NULL )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
hlen = mbedtls_md_get_size( md_info );
// checking for integer underflow
if( 2 * hlen + 2 > ilen )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
/*
* RSA operation
*/
ret = ( mode == MBEDTLS_RSA_PUBLIC )
? mbedtls_rsa_public( ctx, input, buf )
: mbedtls_rsa_private( ctx, f_rng, p_rng, input, buf );
if( ret != 0 )
goto cleanup;
/*
* Unmask data and generate lHash
*/
mbedtls_md_init( &md_ctx );
if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 )
{
mbedtls_md_free( &md_ctx );
goto cleanup;
}
/* seed: Apply seedMask to maskedSeed */
if( ( ret = mgf_mask( buf + 1, hlen, buf + hlen + 1, ilen - hlen - 1,
&md_ctx ) ) != 0 ||
/* DB: Apply dbMask to maskedDB */
( ret = mgf_mask( buf + hlen + 1, ilen - hlen - 1, buf + 1, hlen,
&md_ctx ) ) != 0 )
{
mbedtls_md_free( &md_ctx );
goto cleanup;
}
mbedtls_md_free( &md_ctx );
/* Generate lHash */
if( ( ret = mbedtls_md( md_info, label, label_len, lhash ) ) != 0 )
goto cleanup;
/*
* Check contents, in "constant-time"
*/
p = buf;
bad = 0;
bad |= *p++; /* First byte must be 0 */
p += hlen; /* Skip seed */
/* Check lHash */
for( i = 0; i < hlen; i++ )
bad |= lhash[i] ^ *p++;
/* Get zero-padding len, but always read till end of buffer
* (minus one, for the 01 byte) */
pad_len = 0;
pad_done = 0;
for( i = 0; i < ilen - 2 * hlen - 2; i++ )
{
pad_done |= p[i];
pad_len += ((pad_done | (unsigned char)-pad_done) >> 7) ^ 1;
}
p += pad_len;
bad |= *p++ ^ 0x01;
/*
* The only information "leaked" is whether the padding was correct or not
* (eg, no data is copied if it was not correct). This meets the
* recommendations in PKCS#1 v2.2: an opponent cannot distinguish between
* the different error conditions.
*/
if( bad != 0 )
{
ret = MBEDTLS_ERR_RSA_INVALID_PADDING;
goto cleanup;
}
if( ilen - ( p - buf ) > output_max_len )
{
ret = MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE;
goto cleanup;
}
*olen = ilen - (p - buf);
memcpy( output, p, *olen );
ret = 0;
cleanup:
mbedtls_platform_zeroize( buf, sizeof( buf ) );
mbedtls_platform_zeroize( lhash, sizeof( lhash ) );
return( ret );
}
#endif /* MBEDTLS_PKCS1_V21 */
#if defined(MBEDTLS_PKCS1_V15)
/** Turn zero-or-nonzero into zero-or-all-bits-one, without branches.
*
* \param value The value to analyze.
* \return Zero if \p value is zero, otherwise all-bits-one.
*/
static unsigned all_or_nothing_int( unsigned value )
{
/* MSVC has a warning about unary minus on unsigned, but this is
* well-defined and precisely what we want to do here */
#if defined(_MSC_VER)
#pragma warning( push )
#pragma warning( disable : 4146 )
#endif
return( - ( ( value | - value ) >> ( sizeof( value ) * 8 - 1 ) ) );
#if defined(_MSC_VER)
#pragma warning( pop )
#endif
}
/** Check whether a size is out of bounds, without branches.
*
* This is equivalent to `size > max`, but is likely to be compiled to
* to code using bitwise operation rather than a branch.
*
* \param size Size to check.
* \param max Maximum desired value for \p size.
* \return \c 0 if `size <= max`.
* \return \c 1 if `size > max`.
*/
static unsigned size_greater_than( size_t size, size_t max )
{
/* Return the sign bit (1 for negative) of (max - size). */
return( ( max - size ) >> ( sizeof( size_t ) * 8 - 1 ) );
}
/** Choose between two integer values, without branches.
*
* This is equivalent to `cond ? if1 : if0`, but is likely to be compiled
* to code using bitwise operation rather than a branch.
*
* \param cond Condition to test.
* \param if1 Value to use if \p cond is nonzero.
* \param if0 Value to use if \p cond is zero.
* \return \c if1 if \p cond is nonzero, otherwise \c if0.
*/
static unsigned if_int( unsigned cond, unsigned if1, unsigned if0 )
{
unsigned mask = all_or_nothing_int( cond );
return( ( mask & if1 ) | (~mask & if0 ) );
}
/** Shift some data towards the left inside a buffer without leaking
* the length of the data through side channels.
*
* `mem_move_to_left(start, total, offset)` is functionally equivalent to
* ```
* memmove(start, start + offset, total - offset);
* memset(start + offset, 0, total - offset);
* ```
* but it strives to use a memory access pattern (and thus total timing)
* that does not depend on \p offset. This timing independence comes at
* the expense of performance.
*
* \param start Pointer to the start of the buffer.
* \param total Total size of the buffer.
* \param offset Offset from which to copy \p total - \p offset bytes.
*/
static void mem_move_to_left( void *start,
size_t total,
size_t offset )
{
volatile unsigned char *buf = start;
size_t i, n;
if( total == 0 )
return;
for( i = 0; i < total; i++ )
{
unsigned no_op = size_greater_than( total - offset, i );
/* The first `total - offset` passes are a no-op. The last
* `offset` passes shift the data one byte to the left and
* zero out the last byte. */
for( n = 0; n < total - 1; n++ )
{
unsigned char current = buf[n];
unsigned char next = buf[n+1];
buf[n] = if_int( no_op, current, next );
}
buf[total-1] = if_int( no_op, buf[total-1], 0 );
}
}
/*
* Implementation of the PKCS#1 v2.1 RSAES-PKCS1-V1_5-DECRYPT function
*/
int mbedtls_rsa_rsaes_pkcs1_v15_decrypt( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode, size_t *olen,
const unsigned char *input,
unsigned char *output,
size_t output_max_len )
{
int ret;
size_t ilen, i, plaintext_max_size;
unsigned char buf[MBEDTLS_MPI_MAX_SIZE];
/* The following variables take sensitive values: their value must
* not leak into the observable behavior of the function other than
* the designated outputs (output, olen, return value). Otherwise
* this would open the execution of the function to
* side-channel-based variants of the Bleichenbacher padding oracle
* attack. Potential side channels include overall timing, memory
* access patterns (especially visible to an adversary who has access
* to a shared memory cache), and branches (especially visible to
* an adversary who has access to a shared code cache or to a shared
* branch predictor). */
size_t pad_count = 0;
unsigned bad = 0;
unsigned char pad_done = 0;
size_t plaintext_size = 0;
unsigned output_too_large;
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
mode == MBEDTLS_RSA_PUBLIC );
RSA_VALIDATE_RET( output_max_len == 0 || output != NULL );
RSA_VALIDATE_RET( input != NULL );
RSA_VALIDATE_RET( olen != NULL );
ilen = ctx->len;
plaintext_max_size = ( output_max_len > ilen - 11 ?
ilen - 11 :
output_max_len );
if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
if( ilen < 16 || ilen > sizeof( buf ) )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
ret = ( mode == MBEDTLS_RSA_PUBLIC )
? mbedtls_rsa_public( ctx, input, buf )
: mbedtls_rsa_private( ctx, f_rng, p_rng, input, buf );
if( ret != 0 )
goto cleanup;
/* Check and get padding length in constant time and constant
* memory trace. The first byte must be 0. */
bad |= buf[0];
if( mode == MBEDTLS_RSA_PRIVATE )
{
/* Decode EME-PKCS1-v1_5 padding: 0x00 || 0x02 || PS || 0x00
* where PS must be at least 8 nonzero bytes. */
bad |= buf[1] ^ MBEDTLS_RSA_CRYPT;
/* Read the whole buffer. Set pad_done to nonzero if we find
* the 0x00 byte and remember the padding length in pad_count. */
for( i = 2; i < ilen; i++ )
{
pad_done |= ((buf[i] | (unsigned char)-buf[i]) >> 7) ^ 1;
pad_count += ((pad_done | (unsigned char)-pad_done) >> 7) ^ 1;
}
}
else
{
/* Decode EMSA-PKCS1-v1_5 padding: 0x00 || 0x01 || PS || 0x00
* where PS must be at least 8 bytes with the value 0xFF. */
bad |= buf[1] ^ MBEDTLS_RSA_SIGN;
/* Read the whole buffer. Set pad_done to nonzero if we find
* the 0x00 byte and remember the padding length in pad_count.
* If there's a non-0xff byte in the padding, the padding is bad. */
for( i = 2; i < ilen; i++ )
{
pad_done |= if_int( buf[i], 0, 1 );
pad_count += if_int( pad_done, 0, 1 );
bad |= if_int( pad_done, 0, buf[i] ^ 0xFF );
}
}
/* If pad_done is still zero, there's no data, only unfinished padding. */
bad |= if_int( pad_done, 0, 1 );
/* There must be at least 8 bytes of padding. */
bad |= size_greater_than( 8, pad_count );
/* If the padding is valid, set plaintext_size to the number of
* remaining bytes after stripping the padding. If the padding
* is invalid, avoid leaking this fact through the size of the
* output: use the maximum message size that fits in the output
* buffer. Do it without branches to avoid leaking the padding
* validity through timing. RSA keys are small enough that all the
* size_t values involved fit in unsigned int. */
plaintext_size = if_int( bad,
(unsigned) plaintext_max_size,
(unsigned) ( ilen - pad_count - 3 ) );
/* Set output_too_large to 0 if the plaintext fits in the output
* buffer and to 1 otherwise. */
output_too_large = size_greater_than( plaintext_size,
plaintext_max_size );
/* Set ret without branches to avoid timing attacks. Return:
* - INVALID_PADDING if the padding is bad (bad != 0).
* - OUTPUT_TOO_LARGE if the padding is good but the decrypted
* plaintext does not fit in the output buffer.
* - 0 if the padding is correct. */
ret = - (int) if_int( bad, - MBEDTLS_ERR_RSA_INVALID_PADDING,
if_int( output_too_large, - MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE,
0 ) );
/* If the padding is bad or the plaintext is too large, zero the
* data that we're about to copy to the output buffer.
* We need to copy the same amount of data
* from the same buffer whether the padding is good or not to
* avoid leaking the padding validity through overall timing or
* through memory or cache access patterns. */
bad = all_or_nothing_int( bad | output_too_large );
for( i = 11; i < ilen; i++ )
buf[i] &= ~bad;
/* If the plaintext is too large, truncate it to the buffer size.
* Copy anyway to avoid revealing the length through timing, because
* revealing the length is as bad as revealing the padding validity
* for a Bleichenbacher attack. */
plaintext_size = if_int( output_too_large,
(unsigned) plaintext_max_size,
(unsigned) plaintext_size );
/* Move the plaintext to the leftmost position where it can start in
* the working buffer, i.e. make it start plaintext_max_size from
* the end of the buffer. Do this with a memory access trace that
* does not depend on the plaintext size. After this move, the
* starting location of the plaintext is no longer sensitive
* information. */
mem_move_to_left( buf + ilen - plaintext_max_size,
plaintext_max_size,
plaintext_max_size - plaintext_size );
/* Finally copy the decrypted plaintext plus trailing zeros
* into the output buffer. */
memcpy( output, buf + ilen - plaintext_max_size, plaintext_max_size );
/* Report the amount of data we copied to the output buffer. In case
* of errors (bad padding or output too large), the value of *olen
* when this function returns is not specified. Making it equivalent
* to the good case limits the risks of leaking the padding validity. */
*olen = plaintext_size;
cleanup:
mbedtls_platform_zeroize( buf, sizeof( buf ) );
return( ret );
}
#endif /* MBEDTLS_PKCS1_V15 */
/*
* Do an RSA operation, then remove the message padding
*/
int mbedtls_rsa_pkcs1_decrypt( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode, size_t *olen,
const unsigned char *input,
unsigned char *output,
size_t output_max_len)
{
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
mode == MBEDTLS_RSA_PUBLIC );
RSA_VALIDATE_RET( output_max_len == 0 || output != NULL );
RSA_VALIDATE_RET( input != NULL );
RSA_VALIDATE_RET( olen != NULL );
switch( ctx->padding )
{
#if defined(MBEDTLS_PKCS1_V15)
case MBEDTLS_RSA_PKCS_V15:
return mbedtls_rsa_rsaes_pkcs1_v15_decrypt( ctx, f_rng, p_rng, mode, olen,
input, output, output_max_len );
#endif
#if defined(MBEDTLS_PKCS1_V21)
case MBEDTLS_RSA_PKCS_V21:
return mbedtls_rsa_rsaes_oaep_decrypt( ctx, f_rng, p_rng, mode, NULL, 0,
olen, input, output,
output_max_len );
#endif
default:
return( MBEDTLS_ERR_RSA_INVALID_PADDING );
}
}
#if defined(MBEDTLS_PKCS1_V21)
/*
* Implementation of the PKCS#1 v2.1 RSASSA-PSS-SIGN function
*/
int mbedtls_rsa_rsassa_pss_sign( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode,
mbedtls_md_type_t md_alg,
unsigned int hashlen,
const unsigned char *hash,
unsigned char *sig )
{
size_t olen;
unsigned char *p = sig;
unsigned char salt[MBEDTLS_MD_MAX_SIZE];
size_t slen, min_slen, hlen, offset = 0;
int ret;
size_t msb;
const mbedtls_md_info_t *md_info;
mbedtls_md_context_t md_ctx;
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
mode == MBEDTLS_RSA_PUBLIC );
RSA_VALIDATE_RET( ( md_alg == MBEDTLS_MD_NONE &&
hashlen == 0 ) ||
hash != NULL );
RSA_VALIDATE_RET( sig != NULL );
if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
if( f_rng == NULL )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
olen = ctx->len;
if( md_alg != MBEDTLS_MD_NONE )
{
/* Gather length of hash to sign */
md_info = mbedtls_md_info_from_type( md_alg );
if( md_info == NULL )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
hashlen = mbedtls_md_get_size( md_info );
}
md_info = mbedtls_md_info_from_type( (mbedtls_md_type_t) ctx->hash_id );
if( md_info == NULL )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
hlen = mbedtls_md_get_size( md_info );
/* Calculate the largest possible salt length. Normally this is the hash
* length, which is the maximum length the salt can have. If there is not
* enough room, use the maximum salt length that fits. The constraint is
* that the hash length plus the salt length plus 2 bytes must be at most
* the key length. This complies with FIPS 186-4 §5.5 (e) and RFC 8017
* (PKCS#1 v2.2) §9.1.1 step 3. */
min_slen = hlen - 2;
if( olen < hlen + min_slen + 2 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
else if( olen >= hlen + hlen + 2 )
slen = hlen;
else
slen = olen - hlen - 2;
memset( sig, 0, olen );
/* Generate salt of length slen */
if( ( ret = f_rng( p_rng, salt, slen ) ) != 0 )
return( MBEDTLS_ERR_RSA_RNG_FAILED + ret );
/* Note: EMSA-PSS encoding is over the length of N - 1 bits */
msb = mbedtls_mpi_bitlen( &ctx->N ) - 1;
p += olen - hlen - slen - 2;
*p++ = 0x01;
memcpy( p, salt, slen );
p += slen;
mbedtls_md_init( &md_ctx );
if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 )
goto exit;
/* Generate H = Hash( M' ) */
if( ( ret = mbedtls_md_starts( &md_ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_update( &md_ctx, p, 8 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_update( &md_ctx, hash, hashlen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_update( &md_ctx, salt, slen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md_finish( &md_ctx, p ) ) != 0 )
goto exit;
/* Compensate for boundary condition when applying mask */
if( msb % 8 == 0 )
offset = 1;
/* maskedDB: Apply dbMask to DB */
if( ( ret = mgf_mask( sig + offset, olen - hlen - 1 - offset, p, hlen,
&md_ctx ) ) != 0 )
goto exit;
msb = mbedtls_mpi_bitlen( &ctx->N ) - 1;
sig[0] &= 0xFF >> ( olen * 8 - msb );
p += hlen;
*p++ = 0xBC;
mbedtls_platform_zeroize( salt, sizeof( salt ) );
exit:
mbedtls_md_free( &md_ctx );
if( ret != 0 )
return( ret );
return( ( mode == MBEDTLS_RSA_PUBLIC )
? mbedtls_rsa_public( ctx, sig, sig )
: mbedtls_rsa_private( ctx, f_rng, p_rng, sig, sig ) );
}
#endif /* MBEDTLS_PKCS1_V21 */
#if defined(MBEDTLS_PKCS1_V15)
/*
* Implementation of the PKCS#1 v2.1 RSASSA-PKCS1-V1_5-SIGN function
*/
/* Construct a PKCS v1.5 encoding of a hashed message
*
* This is used both for signature generation and verification.
*
* Parameters:
* - md_alg: Identifies the hash algorithm used to generate the given hash;
* MBEDTLS_MD_NONE if raw data is signed.
* - hashlen: Length of hash in case hashlen is MBEDTLS_MD_NONE.
* - hash: Buffer containing the hashed message or the raw data.
* - dst_len: Length of the encoded message.
* - dst: Buffer to hold the encoded message.
*
* Assumptions:
* - hash has size hashlen if md_alg == MBEDTLS_MD_NONE.
* - hash has size corresponding to md_alg if md_alg != MBEDTLS_MD_NONE.
* - dst points to a buffer of size at least dst_len.
*
*/
static int rsa_rsassa_pkcs1_v15_encode( mbedtls_md_type_t md_alg,
unsigned int hashlen,
const unsigned char *hash,
size_t dst_len,
unsigned char *dst )
{
size_t oid_size = 0;
size_t nb_pad = dst_len;
unsigned char *p = dst;
const char *oid = NULL;
/* Are we signing hashed or raw data? */
if( md_alg != MBEDTLS_MD_NONE )
{
const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg );
if( md_info == NULL )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
if( mbedtls_oid_get_oid_by_md( md_alg, &oid, &oid_size ) != 0 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
hashlen = mbedtls_md_get_size( md_info );
/* Double-check that 8 + hashlen + oid_size can be used as a
* 1-byte ASN.1 length encoding and that there's no overflow. */
if( 8 + hashlen + oid_size >= 0x80 ||
10 + hashlen < hashlen ||
10 + hashlen + oid_size < 10 + hashlen )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
/*
* Static bounds check:
* - Need 10 bytes for five tag-length pairs.
* (Insist on 1-byte length encodings to protect against variants of
* Bleichenbacher's forgery attack against lax PKCS#1v1.5 verification)
* - Need hashlen bytes for hash
* - Need oid_size bytes for hash alg OID.
*/
if( nb_pad < 10 + hashlen + oid_size )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
nb_pad -= 10 + hashlen + oid_size;
}
else
{
if( nb_pad < hashlen )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
nb_pad -= hashlen;
}
/* Need space for signature header and padding delimiter (3 bytes),
* and 8 bytes for the minimal padding */
if( nb_pad < 3 + 8 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
nb_pad -= 3;
/* Now nb_pad is the amount of memory to be filled
* with padding, and at least 8 bytes long. */
/* Write signature header and padding */
*p++ = 0;
*p++ = MBEDTLS_RSA_SIGN;
memset( p, 0xFF, nb_pad );
p += nb_pad;
*p++ = 0;
/* Are we signing raw data? */
if( md_alg == MBEDTLS_MD_NONE )
{
memcpy( p, hash, hashlen );
return( 0 );
}
/* Signing hashed data, add corresponding ASN.1 structure
*
* DigestInfo ::= SEQUENCE {
* digestAlgorithm DigestAlgorithmIdentifier,
* digest Digest }
* DigestAlgorithmIdentifier ::= AlgorithmIdentifier
* Digest ::= OCTET STRING
*
* Schematic:
* TAG-SEQ + LEN [ TAG-SEQ + LEN [ TAG-OID + LEN [ OID ]
* TAG-NULL + LEN [ NULL ] ]
* TAG-OCTET + LEN [ HASH ] ]
*/
*p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
*p++ = (unsigned char)( 0x08 + oid_size + hashlen );
*p++ = MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED;
*p++ = (unsigned char)( 0x04 + oid_size );
*p++ = MBEDTLS_ASN1_OID;
*p++ = (unsigned char) oid_size;
memcpy( p, oid, oid_size );
p += oid_size;
*p++ = MBEDTLS_ASN1_NULL;
*p++ = 0x00;
*p++ = MBEDTLS_ASN1_OCTET_STRING;
*p++ = (unsigned char) hashlen;
memcpy( p, hash, hashlen );
p += hashlen;
/* Just a sanity-check, should be automatic
* after the initial bounds check. */
if( p != dst + dst_len )
{
mbedtls_platform_zeroize( dst, dst_len );
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
return( 0 );
}
/*
* Do an RSA operation to sign the message digest
*/
int mbedtls_rsa_rsassa_pkcs1_v15_sign( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode,
mbedtls_md_type_t md_alg,
unsigned int hashlen,
const unsigned char *hash,
unsigned char *sig )
{
int ret;
unsigned char *sig_try = NULL, *verif = NULL;
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
mode == MBEDTLS_RSA_PUBLIC );
RSA_VALIDATE_RET( ( md_alg == MBEDTLS_MD_NONE &&
hashlen == 0 ) ||
hash != NULL );
RSA_VALIDATE_RET( sig != NULL );
if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
/*
* Prepare PKCS1-v1.5 encoding (padding and hash identifier)
*/
if( ( ret = rsa_rsassa_pkcs1_v15_encode( md_alg, hashlen, hash,
ctx->len, sig ) ) != 0 )
return( ret );
/*
* Call respective RSA primitive
*/
if( mode == MBEDTLS_RSA_PUBLIC )
{
/* Skip verification on a public key operation */
return( mbedtls_rsa_public( ctx, sig, sig ) );
}
/* Private key operation
*
* In order to prevent Lenstra's attack, make the signature in a
* temporary buffer and check it before returning it.
*/
sig_try = mbedtls_calloc( 1, ctx->len );
if( sig_try == NULL )
return( MBEDTLS_ERR_MPI_ALLOC_FAILED );
verif = mbedtls_calloc( 1, ctx->len );
if( verif == NULL )
{
mbedtls_free( sig_try );
return( MBEDTLS_ERR_MPI_ALLOC_FAILED );
}
MBEDTLS_MPI_CHK( mbedtls_rsa_private( ctx, f_rng, p_rng, sig, sig_try ) );
MBEDTLS_MPI_CHK( mbedtls_rsa_public( ctx, sig_try, verif ) );
if( mbedtls_safer_memcmp( verif, sig, ctx->len ) != 0 )
{
ret = MBEDTLS_ERR_RSA_PRIVATE_FAILED;
goto cleanup;
}
memcpy( sig, sig_try, ctx->len );
cleanup:
mbedtls_free( sig_try );
mbedtls_free( verif );
return( ret );
}
#endif /* MBEDTLS_PKCS1_V15 */
/*
* Do an RSA operation to sign the message digest
*/
int mbedtls_rsa_pkcs1_sign( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode,
mbedtls_md_type_t md_alg,
unsigned int hashlen,
const unsigned char *hash,
unsigned char *sig )
{
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
mode == MBEDTLS_RSA_PUBLIC );
RSA_VALIDATE_RET( ( md_alg == MBEDTLS_MD_NONE &&
hashlen == 0 ) ||
hash != NULL );
RSA_VALIDATE_RET( sig != NULL );
switch( ctx->padding )
{
#if defined(MBEDTLS_PKCS1_V15)
case MBEDTLS_RSA_PKCS_V15:
return mbedtls_rsa_rsassa_pkcs1_v15_sign( ctx, f_rng, p_rng, mode, md_alg,
hashlen, hash, sig );
#endif
#if defined(MBEDTLS_PKCS1_V21)
case MBEDTLS_RSA_PKCS_V21:
return mbedtls_rsa_rsassa_pss_sign( ctx, f_rng, p_rng, mode, md_alg,
hashlen, hash, sig );
#endif
default:
return( MBEDTLS_ERR_RSA_INVALID_PADDING );
}
}
#if defined(MBEDTLS_PKCS1_V21)
/*
* Implementation of the PKCS#1 v2.1 RSASSA-PSS-VERIFY function
*/
int mbedtls_rsa_rsassa_pss_verify_ext( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode,
mbedtls_md_type_t md_alg,
unsigned int hashlen,
const unsigned char *hash,
mbedtls_md_type_t mgf1_hash_id,
int expected_salt_len,
const unsigned char *sig )
{
int ret;
size_t siglen;
unsigned char *p;
unsigned char *hash_start;
unsigned char result[MBEDTLS_MD_MAX_SIZE];
unsigned char zeros[8];
unsigned int hlen;
size_t observed_salt_len, msb;
const mbedtls_md_info_t *md_info;
mbedtls_md_context_t md_ctx;
unsigned char buf[MBEDTLS_MPI_MAX_SIZE];
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
mode == MBEDTLS_RSA_PUBLIC );
RSA_VALIDATE_RET( sig != NULL );
RSA_VALIDATE_RET( ( md_alg == MBEDTLS_MD_NONE &&
hashlen == 0 ) ||
hash != NULL );
if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V21 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
siglen = ctx->len;
if( siglen < 16 || siglen > sizeof( buf ) )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
ret = ( mode == MBEDTLS_RSA_PUBLIC )
? mbedtls_rsa_public( ctx, sig, buf )
: mbedtls_rsa_private( ctx, f_rng, p_rng, sig, buf );
if( ret != 0 )
return( ret );
p = buf;
if( buf[siglen - 1] != 0xBC )
return( MBEDTLS_ERR_RSA_INVALID_PADDING );
if( md_alg != MBEDTLS_MD_NONE )
{
/* Gather length of hash to sign */
md_info = mbedtls_md_info_from_type( md_alg );
if( md_info == NULL )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
hashlen = mbedtls_md_get_size( md_info );
}
md_info = mbedtls_md_info_from_type( mgf1_hash_id );
if( md_info == NULL )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
hlen = mbedtls_md_get_size( md_info );
memset( zeros, 0, 8 );
/*
* Note: EMSA-PSS verification is over the length of N - 1 bits
*/
msb = mbedtls_mpi_bitlen( &ctx->N ) - 1;
if( buf[0] >> ( 8 - siglen * 8 + msb ) )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
/* Compensate for boundary condition when applying mask */
if( msb % 8 == 0 )
{
p++;
siglen -= 1;
}
if( siglen < hlen + 2 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
hash_start = p + siglen - hlen - 1;
mbedtls_md_init( &md_ctx );
if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 0 ) ) != 0 )
goto exit;
ret = mgf_mask( p, siglen - hlen - 1, hash_start, hlen, &md_ctx );
if( ret != 0 )
goto exit;
buf[0] &= 0xFF >> ( siglen * 8 - msb );
while( p < hash_start - 1 && *p == 0 )
p++;
if( *p++ != 0x01 )
{
ret = MBEDTLS_ERR_RSA_INVALID_PADDING;
goto exit;
}
observed_salt_len = hash_start - p;
if( expected_salt_len != MBEDTLS_RSA_SALT_LEN_ANY &&
observed_salt_len != (size_t) expected_salt_len )
{
ret = MBEDTLS_ERR_RSA_INVALID_PADDING;
goto exit;
}
/*
* Generate H = Hash( M' )
*/
ret = mbedtls_md_starts( &md_ctx );
if ( ret != 0 )
goto exit;
ret = mbedtls_md_update( &md_ctx, zeros, 8 );
if ( ret != 0 )
goto exit;
ret = mbedtls_md_update( &md_ctx, hash, hashlen );
if ( ret != 0 )
goto exit;
ret = mbedtls_md_update( &md_ctx, p, observed_salt_len );
if ( ret != 0 )
goto exit;
ret = mbedtls_md_finish( &md_ctx, result );
if ( ret != 0 )
goto exit;
if( memcmp( hash_start, result, hlen ) != 0 )
{
ret = MBEDTLS_ERR_RSA_VERIFY_FAILED;
goto exit;
}
exit:
mbedtls_md_free( &md_ctx );
return( ret );
}
/*
* Simplified PKCS#1 v2.1 RSASSA-PSS-VERIFY function
*/
int mbedtls_rsa_rsassa_pss_verify( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode,
mbedtls_md_type_t md_alg,
unsigned int hashlen,
const unsigned char *hash,
const unsigned char *sig )
{
mbedtls_md_type_t mgf1_hash_id;
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
mode == MBEDTLS_RSA_PUBLIC );
RSA_VALIDATE_RET( sig != NULL );
RSA_VALIDATE_RET( ( md_alg == MBEDTLS_MD_NONE &&
hashlen == 0 ) ||
hash != NULL );
mgf1_hash_id = ( ctx->hash_id != MBEDTLS_MD_NONE )
? (mbedtls_md_type_t) ctx->hash_id
: md_alg;
return( mbedtls_rsa_rsassa_pss_verify_ext( ctx, f_rng, p_rng, mode,
md_alg, hashlen, hash,
mgf1_hash_id, MBEDTLS_RSA_SALT_LEN_ANY,
sig ) );
}
#endif /* MBEDTLS_PKCS1_V21 */
#if defined(MBEDTLS_PKCS1_V15)
/*
* Implementation of the PKCS#1 v2.1 RSASSA-PKCS1-v1_5-VERIFY function
*/
int mbedtls_rsa_rsassa_pkcs1_v15_verify( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode,
mbedtls_md_type_t md_alg,
unsigned int hashlen,
const unsigned char *hash,
const unsigned char *sig )
{
int ret = 0;
size_t sig_len;
unsigned char *encoded = NULL, *encoded_expected = NULL;
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
mode == MBEDTLS_RSA_PUBLIC );
RSA_VALIDATE_RET( sig != NULL );
RSA_VALIDATE_RET( ( md_alg == MBEDTLS_MD_NONE &&
hashlen == 0 ) ||
hash != NULL );
sig_len = ctx->len;
if( mode == MBEDTLS_RSA_PRIVATE && ctx->padding != MBEDTLS_RSA_PKCS_V15 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
/*
* Prepare expected PKCS1 v1.5 encoding of hash.
*/
if( ( encoded = mbedtls_calloc( 1, sig_len ) ) == NULL ||
( encoded_expected = mbedtls_calloc( 1, sig_len ) ) == NULL )
{
ret = MBEDTLS_ERR_MPI_ALLOC_FAILED;
goto cleanup;
}
if( ( ret = rsa_rsassa_pkcs1_v15_encode( md_alg, hashlen, hash, sig_len,
encoded_expected ) ) != 0 )
goto cleanup;
/*
* Apply RSA primitive to get what should be PKCS1 encoded hash.
*/
ret = ( mode == MBEDTLS_RSA_PUBLIC )
? mbedtls_rsa_public( ctx, sig, encoded )
: mbedtls_rsa_private( ctx, f_rng, p_rng, sig, encoded );
if( ret != 0 )
goto cleanup;
/*
* Compare
*/
if( ( ret = mbedtls_safer_memcmp( encoded, encoded_expected,
sig_len ) ) != 0 )
{
ret = MBEDTLS_ERR_RSA_VERIFY_FAILED;
goto cleanup;
}
cleanup:
if( encoded != NULL )
{
mbedtls_platform_zeroize( encoded, sig_len );
mbedtls_free( encoded );
}
if( encoded_expected != NULL )
{
mbedtls_platform_zeroize( encoded_expected, sig_len );
mbedtls_free( encoded_expected );
}
return( ret );
}
#endif /* MBEDTLS_PKCS1_V15 */
/*
* Do an RSA operation and check the message digest
*/
int mbedtls_rsa_pkcs1_verify( mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode,
mbedtls_md_type_t md_alg,
unsigned int hashlen,
const unsigned char *hash,
const unsigned char *sig )
{
RSA_VALIDATE_RET( ctx != NULL );
RSA_VALIDATE_RET( mode == MBEDTLS_RSA_PRIVATE ||
mode == MBEDTLS_RSA_PUBLIC );
RSA_VALIDATE_RET( sig != NULL );
RSA_VALIDATE_RET( ( md_alg == MBEDTLS_MD_NONE &&
hashlen == 0 ) ||
hash != NULL );
switch( ctx->padding )
{
#if defined(MBEDTLS_PKCS1_V15)
case MBEDTLS_RSA_PKCS_V15:
return mbedtls_rsa_rsassa_pkcs1_v15_verify( ctx, f_rng, p_rng, mode, md_alg,
hashlen, hash, sig );
#endif
#if defined(MBEDTLS_PKCS1_V21)
case MBEDTLS_RSA_PKCS_V21:
return mbedtls_rsa_rsassa_pss_verify( ctx, f_rng, p_rng, mode, md_alg,
hashlen, hash, sig );
#endif
default:
return( MBEDTLS_ERR_RSA_INVALID_PADDING );
}
}
/*
* Copy the components of an RSA key
*/
int mbedtls_rsa_copy( mbedtls_rsa_context *dst, const mbedtls_rsa_context *src )
{
int ret;
RSA_VALIDATE_RET( dst != NULL );
RSA_VALIDATE_RET( src != NULL );
dst->ver = src->ver;
dst->len = src->len;
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->N, &src->N ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->E, &src->E ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->D, &src->D ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->P, &src->P ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->Q, &src->Q ) );
#if !defined(MBEDTLS_RSA_NO_CRT)
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->DP, &src->DP ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->DQ, &src->DQ ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->QP, &src->QP ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->RP, &src->RP ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->RQ, &src->RQ ) );
#endif
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->RN, &src->RN ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->Vi, &src->Vi ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_copy( &dst->Vf, &src->Vf ) );
dst->padding = src->padding;
dst->hash_id = src->hash_id;
cleanup:
if( ret != 0 )
mbedtls_rsa_free( dst );
return( ret );
}
/*
* Free the components of an RSA key
*/
void mbedtls_rsa_free( mbedtls_rsa_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_mpi_free( &ctx->Vi );
mbedtls_mpi_free( &ctx->Vf );
mbedtls_mpi_free( &ctx->RN );
mbedtls_mpi_free( &ctx->D );
mbedtls_mpi_free( &ctx->Q );
mbedtls_mpi_free( &ctx->P );
mbedtls_mpi_free( &ctx->E );
mbedtls_mpi_free( &ctx->N );
#if !defined(MBEDTLS_RSA_NO_CRT)
mbedtls_mpi_free( &ctx->RQ );
mbedtls_mpi_free( &ctx->RP );
mbedtls_mpi_free( &ctx->QP );
mbedtls_mpi_free( &ctx->DQ );
mbedtls_mpi_free( &ctx->DP );
#endif /* MBEDTLS_RSA_NO_CRT */
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_free( &ctx->mutex );
#endif
}
#endif /* !MBEDTLS_RSA_ALT */
#if defined(MBEDTLS_SELF_TEST)
#include "mbedtls/sha1.h"
/*
* Example RSA-1024 keypair, for test purposes
*/
#define KEY_LEN 128
#define RSA_N "9292758453063D803DD603D5E777D788" \
"8ED1D5BF35786190FA2F23EBC0848AEA" \
"DDA92CA6C3D80B32C4D109BE0F36D6AE" \
"7130B9CED7ACDF54CFC7555AC14EEBAB" \
"93A89813FBF3C4F8066D2D800F7C38A8" \
"1AE31942917403FF4946B0A83D3D3E05" \
"EE57C6F5F5606FB5D4BC6CD34EE0801A" \
"5E94BB77B07507233A0BC7BAC8F90F79"
#define RSA_E "10001"
#define RSA_D "24BF6185468786FDD303083D25E64EFC" \
"66CA472BC44D253102F8B4A9D3BFA750" \
"91386C0077937FE33FA3252D28855837" \
"AE1B484A8A9A45F7EE8C0C634F99E8CD" \
"DF79C5CE07EE72C7F123142198164234" \
"CABB724CF78B8173B9F880FC86322407" \
"AF1FEDFDDE2BEB674CA15F3E81A1521E" \
"071513A1E85B5DFA031F21ECAE91A34D"
#define RSA_P "C36D0EB7FCD285223CFB5AABA5BDA3D8" \
"2C01CAD19EA484A87EA4377637E75500" \
"FCB2005C5C7DD6EC4AC023CDA285D796" \
"C3D9E75E1EFC42488BB4F1D13AC30A57"
#define RSA_Q "C000DF51A7C77AE8D7C7370C1FF55B69" \
"E211C2B9E5DB1ED0BF61D0D9899620F4" \
"910E4168387E3C30AA1E00C339A79508" \
"8452DD96A9A5EA5D9DCA68DA636032AF"
#define PT_LEN 24
#define RSA_PT "\xAA\xBB\xCC\x03\x02\x01\x00\xFF\xFF\xFF\xFF\xFF" \
"\x11\x22\x33\x0A\x0B\x0C\xCC\xDD\xDD\xDD\xDD\xDD"
#if defined(MBEDTLS_PKCS1_V15)
static int myrand( void *rng_state, unsigned char *output, size_t len )
{
#if !defined(__OpenBSD__)
size_t i;
if( rng_state != NULL )
rng_state = NULL;
for( i = 0; i < len; ++i )
output[i] = rand();
#else
if( rng_state != NULL )
rng_state = NULL;
arc4random_buf( output, len );
#endif /* !OpenBSD */
return( 0 );
}
#endif /* MBEDTLS_PKCS1_V15 */
/*
* Checkup routine
*/
int mbedtls_rsa_self_test( int verbose )
{
int ret = 0;
#if defined(MBEDTLS_PKCS1_V15)
size_t len;
mbedtls_rsa_context rsa;
unsigned char rsa_plaintext[PT_LEN];
unsigned char rsa_decrypted[PT_LEN];
unsigned char rsa_ciphertext[KEY_LEN];
#if defined(MBEDTLS_SHA1_C)
unsigned char sha1sum[20];
#endif
mbedtls_mpi K;
mbedtls_mpi_init( &K );
mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, 0 );
MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &K, 16, RSA_N ) );
MBEDTLS_MPI_CHK( mbedtls_rsa_import( &rsa, &K, NULL, NULL, NULL, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &K, 16, RSA_P ) );
MBEDTLS_MPI_CHK( mbedtls_rsa_import( &rsa, NULL, &K, NULL, NULL, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &K, 16, RSA_Q ) );
MBEDTLS_MPI_CHK( mbedtls_rsa_import( &rsa, NULL, NULL, &K, NULL, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &K, 16, RSA_D ) );
MBEDTLS_MPI_CHK( mbedtls_rsa_import( &rsa, NULL, NULL, NULL, &K, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_read_string( &K, 16, RSA_E ) );
MBEDTLS_MPI_CHK( mbedtls_rsa_import( &rsa, NULL, NULL, NULL, NULL, &K ) );
MBEDTLS_MPI_CHK( mbedtls_rsa_complete( &rsa ) );
if( verbose != 0 )
mbedtls_printf( " RSA key validation: " );
if( mbedtls_rsa_check_pubkey( &rsa ) != 0 ||
mbedtls_rsa_check_privkey( &rsa ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto cleanup;
}
if( verbose != 0 )
mbedtls_printf( "passed\n PKCS#1 encryption : " );
memcpy( rsa_plaintext, RSA_PT, PT_LEN );
if( mbedtls_rsa_pkcs1_encrypt( &rsa, myrand, NULL, MBEDTLS_RSA_PUBLIC,
PT_LEN, rsa_plaintext,
rsa_ciphertext ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto cleanup;
}
if( verbose != 0 )
mbedtls_printf( "passed\n PKCS#1 decryption : " );
if( mbedtls_rsa_pkcs1_decrypt( &rsa, myrand, NULL, MBEDTLS_RSA_PRIVATE,
&len, rsa_ciphertext, rsa_decrypted,
sizeof(rsa_decrypted) ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto cleanup;
}
if( memcmp( rsa_decrypted, rsa_plaintext, len ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto cleanup;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
#if defined(MBEDTLS_SHA1_C)
if( verbose != 0 )
mbedtls_printf( " PKCS#1 data sign : " );
if( mbedtls_sha1_ret( rsa_plaintext, PT_LEN, sha1sum ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
return( 1 );
}
if( mbedtls_rsa_pkcs1_sign( &rsa, myrand, NULL,
MBEDTLS_RSA_PRIVATE, MBEDTLS_MD_SHA1, 0,
sha1sum, rsa_ciphertext ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto cleanup;
}
if( verbose != 0 )
mbedtls_printf( "passed\n PKCS#1 sig. verify: " );
if( mbedtls_rsa_pkcs1_verify( &rsa, NULL, NULL,
MBEDTLS_RSA_PUBLIC, MBEDTLS_MD_SHA1, 0,
sha1sum, rsa_ciphertext ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto cleanup;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
#endif /* MBEDTLS_SHA1_C */
if( verbose != 0 )
mbedtls_printf( "\n" );
cleanup:
mbedtls_mpi_free( &K );
mbedtls_rsa_free( &rsa );
#else /* MBEDTLS_PKCS1_V15 */
((void) verbose);
#endif /* MBEDTLS_PKCS1_V15 */
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_RSA_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/rsa.c | C | apache-2.0 | 84,699 |
/*
* Helper functions for the RSA module
*
* Copyright (C) 2006-2017, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_RSA_C)
#include "mbedtls/rsa.h"
#include "mbedtls/bignum.h"
#include "mbedtls/rsa_internal.h"
/*
* Compute RSA prime factors from public and private exponents
*
* Summary of algorithm:
* Setting F := lcm(P-1,Q-1), the idea is as follows:
*
* (a) For any 1 <= X < N with gcd(X,N)=1, we have X^F = 1 modulo N, so X^(F/2)
* is a square root of 1 in Z/NZ. Since Z/NZ ~= Z/PZ x Z/QZ by CRT and the
* square roots of 1 in Z/PZ and Z/QZ are +1 and -1, this leaves the four
* possibilities X^(F/2) = (+-1, +-1). If it happens that X^(F/2) = (-1,+1)
* or (+1,-1), then gcd(X^(F/2) + 1, N) will be equal to one of the prime
* factors of N.
*
* (b) If we don't know F/2 but (F/2) * K for some odd (!) K, then the same
* construction still applies since (-)^K is the identity on the set of
* roots of 1 in Z/NZ.
*
* The public and private key primitives (-)^E and (-)^D are mutually inverse
* bijections on Z/NZ if and only if (-)^(DE) is the identity on Z/NZ, i.e.
* if and only if DE - 1 is a multiple of F, say DE - 1 = F * L.
* Splitting L = 2^t * K with K odd, we have
*
* DE - 1 = FL = (F/2) * (2^(t+1)) * K,
*
* so (F / 2) * K is among the numbers
*
* (DE - 1) >> 1, (DE - 1) >> 2, ..., (DE - 1) >> ord
*
* where ord is the order of 2 in (DE - 1).
* We can therefore iterate through these numbers apply the construction
* of (a) and (b) above to attempt to factor N.
*
*/
int mbedtls_rsa_deduce_primes( mbedtls_mpi const *N,
mbedtls_mpi const *E, mbedtls_mpi const *D,
mbedtls_mpi *P, mbedtls_mpi *Q )
{
int ret = 0;
uint16_t attempt; /* Number of current attempt */
uint16_t iter; /* Number of squares computed in the current attempt */
uint16_t order; /* Order of 2 in DE - 1 */
mbedtls_mpi T; /* Holds largest odd divisor of DE - 1 */
mbedtls_mpi K; /* Temporary holding the current candidate */
const unsigned char primes[] = { 2,
3, 5, 7, 11, 13, 17, 19, 23,
29, 31, 37, 41, 43, 47, 53, 59,
61, 67, 71, 73, 79, 83, 89, 97,
101, 103, 107, 109, 113, 127, 131, 137,
139, 149, 151, 157, 163, 167, 173, 179,
181, 191, 193, 197, 199, 211, 223, 227,
229, 233, 239, 241, 251
};
const size_t num_primes = sizeof( primes ) / sizeof( *primes );
if( P == NULL || Q == NULL || P->p != NULL || Q->p != NULL )
return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
if( mbedtls_mpi_cmp_int( N, 0 ) <= 0 ||
mbedtls_mpi_cmp_int( D, 1 ) <= 0 ||
mbedtls_mpi_cmp_mpi( D, N ) >= 0 ||
mbedtls_mpi_cmp_int( E, 1 ) <= 0 ||
mbedtls_mpi_cmp_mpi( E, N ) >= 0 )
{
return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
}
/*
* Initializations and temporary changes
*/
mbedtls_mpi_init( &K );
mbedtls_mpi_init( &T );
/* T := DE - 1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &T, D, E ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &T, &T, 1 ) );
if( ( order = (uint16_t) mbedtls_mpi_lsb( &T ) ) == 0 )
{
ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
goto cleanup;
}
/* After this operation, T holds the largest odd divisor of DE - 1. */
MBEDTLS_MPI_CHK( mbedtls_mpi_shift_r( &T, order ) );
/*
* Actual work
*/
/* Skip trying 2 if N == 1 mod 8 */
attempt = 0;
if( N->p[0] % 8 == 1 )
attempt = 1;
for( ; attempt < num_primes; ++attempt )
{
mbedtls_mpi_lset( &K, primes[attempt] );
/* Check if gcd(K,N) = 1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( P, &K, N ) );
if( mbedtls_mpi_cmp_int( P, 1 ) != 0 )
continue;
/* Go through K^T + 1, K^(2T) + 1, K^(4T) + 1, ...
* and check whether they have nontrivial GCD with N. */
MBEDTLS_MPI_CHK( mbedtls_mpi_exp_mod( &K, &K, &T, N,
Q /* temporarily use Q for storing Montgomery
* multiplication helper values */ ) );
for( iter = 1; iter <= order; ++iter )
{
/* If we reach 1 prematurely, there's no point
* in continuing to square K */
if( mbedtls_mpi_cmp_int( &K, 1 ) == 0 )
break;
MBEDTLS_MPI_CHK( mbedtls_mpi_add_int( &K, &K, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( P, &K, N ) );
if( mbedtls_mpi_cmp_int( P, 1 ) == 1 &&
mbedtls_mpi_cmp_mpi( P, N ) == -1 )
{
/*
* Have found a nontrivial divisor P of N.
* Set Q := N / P.
*/
MBEDTLS_MPI_CHK( mbedtls_mpi_div_mpi( Q, NULL, N, P ) );
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, &K, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &K, &K, &K ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &K, &K, N ) );
}
/*
* If we get here, then either we prematurely aborted the loop because
* we reached 1, or K holds primes[attempt]^(DE - 1) mod N, which must
* be 1 if D,E,N were consistent.
* Check if that's the case and abort if not, to avoid very long,
* yet eventually failing, computations if N,D,E were not sane.
*/
if( mbedtls_mpi_cmp_int( &K, 1 ) != 0 )
{
break;
}
}
ret = MBEDTLS_ERR_MPI_BAD_INPUT_DATA;
cleanup:
mbedtls_mpi_free( &K );
mbedtls_mpi_free( &T );
return( ret );
}
/*
* Given P, Q and the public exponent E, deduce D.
* This is essentially a modular inversion.
*/
int mbedtls_rsa_deduce_private_exponent( mbedtls_mpi const *P,
mbedtls_mpi const *Q,
mbedtls_mpi const *E,
mbedtls_mpi *D )
{
int ret = 0;
mbedtls_mpi K, L;
if( D == NULL || mbedtls_mpi_cmp_int( D, 0 ) != 0 )
return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
if( mbedtls_mpi_cmp_int( P, 1 ) <= 0 ||
mbedtls_mpi_cmp_int( Q, 1 ) <= 0 ||
mbedtls_mpi_cmp_int( E, 0 ) == 0 )
{
return( MBEDTLS_ERR_MPI_BAD_INPUT_DATA );
}
mbedtls_mpi_init( &K );
mbedtls_mpi_init( &L );
/* Temporarily put K := P-1 and L := Q-1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, P, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &L, Q, 1 ) );
/* Temporarily put D := gcd(P-1, Q-1) */
MBEDTLS_MPI_CHK( mbedtls_mpi_gcd( D, &K, &L ) );
/* K := LCM(P-1, Q-1) */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &K, &K, &L ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_div_mpi( &K, NULL, &K, D ) );
/* Compute modular inverse of E in LCM(P-1, Q-1) */
MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( D, E, &K ) );
cleanup:
mbedtls_mpi_free( &K );
mbedtls_mpi_free( &L );
return( ret );
}
/*
* Check that RSA CRT parameters are in accordance with core parameters.
*/
int mbedtls_rsa_validate_crt( const mbedtls_mpi *P, const mbedtls_mpi *Q,
const mbedtls_mpi *D, const mbedtls_mpi *DP,
const mbedtls_mpi *DQ, const mbedtls_mpi *QP )
{
int ret = 0;
mbedtls_mpi K, L;
mbedtls_mpi_init( &K );
mbedtls_mpi_init( &L );
/* Check that DP - D == 0 mod P - 1 */
if( DP != NULL )
{
if( P == NULL )
{
ret = MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, P, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &L, DP, D ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &L, &L, &K ) );
if( mbedtls_mpi_cmp_int( &L, 0 ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
}
/* Check that DQ - D == 0 mod Q - 1 */
if( DQ != NULL )
{
if( Q == NULL )
{
ret = MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, Q, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_mpi( &L, DQ, D ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &L, &L, &K ) );
if( mbedtls_mpi_cmp_int( &L, 0 ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
}
/* Check that QP * Q - 1 == 0 mod P */
if( QP != NULL )
{
if( P == NULL || Q == NULL )
{
ret = MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &K, QP, Q ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, &K, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &K, &K, P ) );
if( mbedtls_mpi_cmp_int( &K, 0 ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
}
cleanup:
/* Wrap MPI error codes by RSA check failure error code */
if( ret != 0 &&
ret != MBEDTLS_ERR_RSA_KEY_CHECK_FAILED &&
ret != MBEDTLS_ERR_RSA_BAD_INPUT_DATA )
{
ret += MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
}
mbedtls_mpi_free( &K );
mbedtls_mpi_free( &L );
return( ret );
}
/*
* Check that core RSA parameters are sane.
*/
int mbedtls_rsa_validate_params( const mbedtls_mpi *N, const mbedtls_mpi *P,
const mbedtls_mpi *Q, const mbedtls_mpi *D,
const mbedtls_mpi *E,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret = 0;
mbedtls_mpi K, L;
mbedtls_mpi_init( &K );
mbedtls_mpi_init( &L );
/*
* Step 1: If PRNG provided, check that P and Q are prime
*/
#if defined(MBEDTLS_GENPRIME)
/*
* When generating keys, the strongest security we support aims for an error
* rate of at most 2^-100 and we are aiming for the same certainty here as
* well.
*/
if( f_rng != NULL && P != NULL &&
( ret = mbedtls_mpi_is_prime_ext( P, 50, f_rng, p_rng ) ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
if( f_rng != NULL && Q != NULL &&
( ret = mbedtls_mpi_is_prime_ext( Q, 50, f_rng, p_rng ) ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
#else
((void) f_rng);
((void) p_rng);
#endif /* MBEDTLS_GENPRIME */
/*
* Step 2: Check that 1 < N = P * Q
*/
if( P != NULL && Q != NULL && N != NULL )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &K, P, Q ) );
if( mbedtls_mpi_cmp_int( N, 1 ) <= 0 ||
mbedtls_mpi_cmp_mpi( &K, N ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
}
/*
* Step 3: Check and 1 < D, E < N if present.
*/
if( N != NULL && D != NULL && E != NULL )
{
if ( mbedtls_mpi_cmp_int( D, 1 ) <= 0 ||
mbedtls_mpi_cmp_int( E, 1 ) <= 0 ||
mbedtls_mpi_cmp_mpi( D, N ) >= 0 ||
mbedtls_mpi_cmp_mpi( E, N ) >= 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
}
/*
* Step 4: Check that D, E are inverse modulo P-1 and Q-1
*/
if( P != NULL && Q != NULL && D != NULL && E != NULL )
{
if( mbedtls_mpi_cmp_int( P, 1 ) <= 0 ||
mbedtls_mpi_cmp_int( Q, 1 ) <= 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
/* Compute DE-1 mod P-1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &K, D, E ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, &K, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &L, P, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &K, &K, &L ) );
if( mbedtls_mpi_cmp_int( &K, 0 ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
/* Compute DE-1 mod Q-1 */
MBEDTLS_MPI_CHK( mbedtls_mpi_mul_mpi( &K, D, E ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, &K, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &L, Q, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( &K, &K, &L ) );
if( mbedtls_mpi_cmp_int( &K, 0 ) != 0 )
{
ret = MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
goto cleanup;
}
}
cleanup:
mbedtls_mpi_free( &K );
mbedtls_mpi_free( &L );
/* Wrap MPI error codes by RSA check failure error code */
if( ret != 0 && ret != MBEDTLS_ERR_RSA_KEY_CHECK_FAILED )
{
ret += MBEDTLS_ERR_RSA_KEY_CHECK_FAILED;
}
return( ret );
}
int mbedtls_rsa_deduce_crt( const mbedtls_mpi *P, const mbedtls_mpi *Q,
const mbedtls_mpi *D, mbedtls_mpi *DP,
mbedtls_mpi *DQ, mbedtls_mpi *QP )
{
int ret = 0;
mbedtls_mpi K;
mbedtls_mpi_init( &K );
/* DP = D mod P-1 */
if( DP != NULL )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, P, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( DP, D, &K ) );
}
/* DQ = D mod Q-1 */
if( DQ != NULL )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_sub_int( &K, Q, 1 ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_mod_mpi( DQ, D, &K ) );
}
/* QP = Q^{-1} mod P */
if( QP != NULL )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_inv_mod( QP, Q, P ) );
}
cleanup:
mbedtls_mpi_free( &K );
return( ret );
}
#endif /* MBEDTLS_RSA_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/rsa_internal.c | C | apache-2.0 | 14,577 |
/*
* FIPS-180-1 compliant SHA-1 implementation
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The SHA-1 standard was published by NIST in 1993.
*
* http://www.itl.nist.gov/fipspubs/fip180-1.htm
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_SHA1_C)
#include "mbedtls/sha1.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#define SHA1_VALIDATE_RET(cond) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_SHA1_BAD_INPUT_DATA )
#define SHA1_VALIDATE(cond) MBEDTLS_INTERNAL_VALIDATE( cond )
#if !defined(MBEDTLS_SHA1_ALT)
/*
* 32-bit integer manipulation macros (big endian)
*/
#ifndef GET_UINT32_BE
#define GET_UINT32_BE(n,b,i) \
{ \
(n) = ( (uint32_t) (b)[(i) ] << 24 ) \
| ( (uint32_t) (b)[(i) + 1] << 16 ) \
| ( (uint32_t) (b)[(i) + 2] << 8 ) \
| ( (uint32_t) (b)[(i) + 3] ); \
}
#endif
#ifndef PUT_UINT32_BE
#define PUT_UINT32_BE(n,b,i) \
{ \
(b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
(b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
(b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
(b)[(i) + 3] = (unsigned char) ( (n) ); \
}
#endif
void mbedtls_sha1_init( mbedtls_sha1_context *ctx )
{
SHA1_VALIDATE( ctx != NULL );
memset( ctx, 0, sizeof( mbedtls_sha1_context ) );
}
void mbedtls_sha1_free( mbedtls_sha1_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_sha1_context ) );
}
void mbedtls_sha1_clone( mbedtls_sha1_context *dst,
const mbedtls_sha1_context *src )
{
SHA1_VALIDATE( dst != NULL );
SHA1_VALIDATE( src != NULL );
*dst = *src;
}
/*
* SHA-1 context setup
*/
int mbedtls_sha1_starts_ret( mbedtls_sha1_context *ctx )
{
SHA1_VALIDATE_RET( ctx != NULL );
ctx->total[0] = 0;
ctx->total[1] = 0;
ctx->state[0] = 0x67452301;
ctx->state[1] = 0xEFCDAB89;
ctx->state[2] = 0x98BADCFE;
ctx->state[3] = 0x10325476;
ctx->state[4] = 0xC3D2E1F0;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha1_starts( mbedtls_sha1_context *ctx )
{
mbedtls_sha1_starts_ret( ctx );
}
#endif
#if !defined(MBEDTLS_SHA1_PROCESS_ALT)
int mbedtls_internal_sha1_process( mbedtls_sha1_context *ctx,
const unsigned char data[64] )
{
uint32_t temp, W[16], A, B, C, D, E;
SHA1_VALIDATE_RET( ctx != NULL );
SHA1_VALIDATE_RET( (const unsigned char *)data != NULL );
GET_UINT32_BE( W[ 0], data, 0 );
GET_UINT32_BE( W[ 1], data, 4 );
GET_UINT32_BE( W[ 2], data, 8 );
GET_UINT32_BE( W[ 3], data, 12 );
GET_UINT32_BE( W[ 4], data, 16 );
GET_UINT32_BE( W[ 5], data, 20 );
GET_UINT32_BE( W[ 6], data, 24 );
GET_UINT32_BE( W[ 7], data, 28 );
GET_UINT32_BE( W[ 8], data, 32 );
GET_UINT32_BE( W[ 9], data, 36 );
GET_UINT32_BE( W[10], data, 40 );
GET_UINT32_BE( W[11], data, 44 );
GET_UINT32_BE( W[12], data, 48 );
GET_UINT32_BE( W[13], data, 52 );
GET_UINT32_BE( W[14], data, 56 );
GET_UINT32_BE( W[15], data, 60 );
#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))
#define R(t) \
( \
temp = W[( t - 3 ) & 0x0F] ^ W[( t - 8 ) & 0x0F] ^ \
W[( t - 14 ) & 0x0F] ^ W[ t & 0x0F], \
( W[t & 0x0F] = S(temp,1) ) \
)
#define P(a,b,c,d,e,x) \
{ \
e += S(a,5) + F(b,c,d) + K + x; b = S(b,30); \
}
A = ctx->state[0];
B = ctx->state[1];
C = ctx->state[2];
D = ctx->state[3];
E = ctx->state[4];
#define F(x,y,z) (z ^ (x & (y ^ z)))
#define K 0x5A827999
P( A, B, C, D, E, W[0] );
P( E, A, B, C, D, W[1] );
P( D, E, A, B, C, W[2] );
P( C, D, E, A, B, W[3] );
P( B, C, D, E, A, W[4] );
P( A, B, C, D, E, W[5] );
P( E, A, B, C, D, W[6] );
P( D, E, A, B, C, W[7] );
P( C, D, E, A, B, W[8] );
P( B, C, D, E, A, W[9] );
P( A, B, C, D, E, W[10] );
P( E, A, B, C, D, W[11] );
P( D, E, A, B, C, W[12] );
P( C, D, E, A, B, W[13] );
P( B, C, D, E, A, W[14] );
P( A, B, C, D, E, W[15] );
P( E, A, B, C, D, R(16) );
P( D, E, A, B, C, R(17) );
P( C, D, E, A, B, R(18) );
P( B, C, D, E, A, R(19) );
#undef K
#undef F
#define F(x,y,z) (x ^ y ^ z)
#define K 0x6ED9EBA1
P( A, B, C, D, E, R(20) );
P( E, A, B, C, D, R(21) );
P( D, E, A, B, C, R(22) );
P( C, D, E, A, B, R(23) );
P( B, C, D, E, A, R(24) );
P( A, B, C, D, E, R(25) );
P( E, A, B, C, D, R(26) );
P( D, E, A, B, C, R(27) );
P( C, D, E, A, B, R(28) );
P( B, C, D, E, A, R(29) );
P( A, B, C, D, E, R(30) );
P( E, A, B, C, D, R(31) );
P( D, E, A, B, C, R(32) );
P( C, D, E, A, B, R(33) );
P( B, C, D, E, A, R(34) );
P( A, B, C, D, E, R(35) );
P( E, A, B, C, D, R(36) );
P( D, E, A, B, C, R(37) );
P( C, D, E, A, B, R(38) );
P( B, C, D, E, A, R(39) );
#undef K
#undef F
#define F(x,y,z) ((x & y) | (z & (x | y)))
#define K 0x8F1BBCDC
P( A, B, C, D, E, R(40) );
P( E, A, B, C, D, R(41) );
P( D, E, A, B, C, R(42) );
P( C, D, E, A, B, R(43) );
P( B, C, D, E, A, R(44) );
P( A, B, C, D, E, R(45) );
P( E, A, B, C, D, R(46) );
P( D, E, A, B, C, R(47) );
P( C, D, E, A, B, R(48) );
P( B, C, D, E, A, R(49) );
P( A, B, C, D, E, R(50) );
P( E, A, B, C, D, R(51) );
P( D, E, A, B, C, R(52) );
P( C, D, E, A, B, R(53) );
P( B, C, D, E, A, R(54) );
P( A, B, C, D, E, R(55) );
P( E, A, B, C, D, R(56) );
P( D, E, A, B, C, R(57) );
P( C, D, E, A, B, R(58) );
P( B, C, D, E, A, R(59) );
#undef K
#undef F
#define F(x,y,z) (x ^ y ^ z)
#define K 0xCA62C1D6
P( A, B, C, D, E, R(60) );
P( E, A, B, C, D, R(61) );
P( D, E, A, B, C, R(62) );
P( C, D, E, A, B, R(63) );
P( B, C, D, E, A, R(64) );
P( A, B, C, D, E, R(65) );
P( E, A, B, C, D, R(66) );
P( D, E, A, B, C, R(67) );
P( C, D, E, A, B, R(68) );
P( B, C, D, E, A, R(69) );
P( A, B, C, D, E, R(70) );
P( E, A, B, C, D, R(71) );
P( D, E, A, B, C, R(72) );
P( C, D, E, A, B, R(73) );
P( B, C, D, E, A, R(74) );
P( A, B, C, D, E, R(75) );
P( E, A, B, C, D, R(76) );
P( D, E, A, B, C, R(77) );
P( C, D, E, A, B, R(78) );
P( B, C, D, E, A, R(79) );
#undef K
#undef F
ctx->state[0] += A;
ctx->state[1] += B;
ctx->state[2] += C;
ctx->state[3] += D;
ctx->state[4] += E;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha1_process( mbedtls_sha1_context *ctx,
const unsigned char data[64] )
{
mbedtls_internal_sha1_process( ctx, data );
}
#endif
#endif /* !MBEDTLS_SHA1_PROCESS_ALT */
/*
* SHA-1 process buffer
*/
int mbedtls_sha1_update_ret( mbedtls_sha1_context *ctx,
const unsigned char *input,
size_t ilen )
{
int ret;
size_t fill;
uint32_t left;
SHA1_VALIDATE_RET( ctx != NULL );
SHA1_VALIDATE_RET( ilen == 0 || input != NULL );
if( ilen == 0 )
return( 0 );
left = ctx->total[0] & 0x3F;
fill = 64 - left;
ctx->total[0] += (uint32_t) ilen;
ctx->total[0] &= 0xFFFFFFFF;
if( ctx->total[0] < (uint32_t) ilen )
ctx->total[1]++;
if( left && ilen >= fill )
{
memcpy( (void *) (ctx->buffer + left), input, fill );
if( ( ret = mbedtls_internal_sha1_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
input += fill;
ilen -= fill;
left = 0;
}
while( ilen >= 64 )
{
if( ( ret = mbedtls_internal_sha1_process( ctx, input ) ) != 0 )
return( ret );
input += 64;
ilen -= 64;
}
if( ilen > 0 )
memcpy( (void *) (ctx->buffer + left), input, ilen );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha1_update( mbedtls_sha1_context *ctx,
const unsigned char *input,
size_t ilen )
{
mbedtls_sha1_update_ret( ctx, input, ilen );
}
#endif
/*
* SHA-1 final digest
*/
int mbedtls_sha1_finish_ret( mbedtls_sha1_context *ctx,
unsigned char output[20] )
{
int ret;
uint32_t used;
uint32_t high, low;
SHA1_VALIDATE_RET( ctx != NULL );
SHA1_VALIDATE_RET( (unsigned char *)output != NULL );
/*
* Add padding: 0x80 then 0x00 until 8 bytes remain for the length
*/
used = ctx->total[0] & 0x3F;
ctx->buffer[used++] = 0x80;
if( used <= 56 )
{
/* Enough room for padding + length in current block */
memset( ctx->buffer + used, 0, 56 - used );
}
else
{
/* We'll need an extra block */
memset( ctx->buffer + used, 0, 64 - used );
if( ( ret = mbedtls_internal_sha1_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
memset( ctx->buffer, 0, 56 );
}
/*
* Add message length
*/
high = ( ctx->total[0] >> 29 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );
PUT_UINT32_BE( high, ctx->buffer, 56 );
PUT_UINT32_BE( low, ctx->buffer, 60 );
if( ( ret = mbedtls_internal_sha1_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
/*
* Output final state
*/
PUT_UINT32_BE( ctx->state[0], output, 0 );
PUT_UINT32_BE( ctx->state[1], output, 4 );
PUT_UINT32_BE( ctx->state[2], output, 8 );
PUT_UINT32_BE( ctx->state[3], output, 12 );
PUT_UINT32_BE( ctx->state[4], output, 16 );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha1_finish( mbedtls_sha1_context *ctx,
unsigned char output[20] )
{
mbedtls_sha1_finish_ret( ctx, output );
}
#endif
#endif /* !MBEDTLS_SHA1_ALT */
/*
* output = SHA-1( input buffer )
*/
int mbedtls_sha1_ret( const unsigned char *input,
size_t ilen,
unsigned char output[20] )
{
int ret;
mbedtls_sha1_context ctx;
SHA1_VALIDATE_RET( ilen == 0 || input != NULL );
SHA1_VALIDATE_RET( (unsigned char *)output != NULL );
mbedtls_sha1_init( &ctx );
if( ( ret = mbedtls_sha1_starts_ret( &ctx ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha1_update_ret( &ctx, input, ilen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha1_finish_ret( &ctx, output ) ) != 0 )
goto exit;
exit:
mbedtls_sha1_free( &ctx );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha1( const unsigned char *input,
size_t ilen,
unsigned char output[20] )
{
mbedtls_sha1_ret( input, ilen, output );
}
#endif
#if defined(MBEDTLS_SELF_TEST)
/*
* FIPS-180-1 test vectors
*/
static const unsigned char sha1_test_buf[3][57] =
{
{ "abc" },
{ "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
{ "" }
};
static const size_t sha1_test_buflen[3] =
{
3, 56, 1000
};
static const unsigned char sha1_test_sum[3][20] =
{
{ 0xA9, 0x99, 0x3E, 0x36, 0x47, 0x06, 0x81, 0x6A, 0xBA, 0x3E,
0x25, 0x71, 0x78, 0x50, 0xC2, 0x6C, 0x9C, 0xD0, 0xD8, 0x9D },
{ 0x84, 0x98, 0x3E, 0x44, 0x1C, 0x3B, 0xD2, 0x6E, 0xBA, 0xAE,
0x4A, 0xA1, 0xF9, 0x51, 0x29, 0xE5, 0xE5, 0x46, 0x70, 0xF1 },
{ 0x34, 0xAA, 0x97, 0x3C, 0xD4, 0xC4, 0xDA, 0xA4, 0xF6, 0x1E,
0xEB, 0x2B, 0xDB, 0xAD, 0x27, 0x31, 0x65, 0x34, 0x01, 0x6F }
};
/*
* Checkup routine
*/
int mbedtls_sha1_self_test( int verbose )
{
int i, j, buflen, ret = 0;
unsigned char buf[1024];
unsigned char sha1sum[20];
mbedtls_sha1_context ctx;
mbedtls_sha1_init( &ctx );
/*
* SHA-1
*/
for( i = 0; i < 3; i++ )
{
if( verbose != 0 )
mbedtls_printf( " SHA-1 test #%d: ", i + 1 );
if( ( ret = mbedtls_sha1_starts_ret( &ctx ) ) != 0 )
goto fail;
if( i == 2 )
{
memset( buf, 'a', buflen = 1000 );
for( j = 0; j < 1000; j++ )
{
ret = mbedtls_sha1_update_ret( &ctx, buf, buflen );
if( ret != 0 )
goto fail;
}
}
else
{
ret = mbedtls_sha1_update_ret( &ctx, sha1_test_buf[i],
sha1_test_buflen[i] );
if( ret != 0 )
goto fail;
}
if( ( ret = mbedtls_sha1_finish_ret( &ctx, sha1sum ) ) != 0 )
goto fail;
if( memcmp( sha1sum, sha1_test_sum[i], 20 ) != 0 )
{
ret = 1;
goto fail;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
goto exit;
fail:
if( verbose != 0 )
mbedtls_printf( "failed\n" );
exit:
mbedtls_sha1_free( &ctx );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_SHA1_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/sha1.c | C | apache-2.0 | 14,403 |
/*
* FIPS-180-2 compliant SHA-256 implementation
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The SHA-256 Secure Hash Standard was published by NIST in 2002.
*
* http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_SHA256_C)
#include "mbedtls/sha256.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_printf printf
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#define SHA256_VALIDATE_RET(cond) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_SHA256_BAD_INPUT_DATA )
#define SHA256_VALIDATE(cond) MBEDTLS_INTERNAL_VALIDATE( cond )
#if !defined(MBEDTLS_SHA256_ALT)
/*
* 32-bit integer manipulation macros (big endian)
*/
#ifndef GET_UINT32_BE
#define GET_UINT32_BE(n,b,i) \
do { \
(n) = ( (uint32_t) (b)[(i) ] << 24 ) \
| ( (uint32_t) (b)[(i) + 1] << 16 ) \
| ( (uint32_t) (b)[(i) + 2] << 8 ) \
| ( (uint32_t) (b)[(i) + 3] ); \
} while( 0 )
#endif
#ifndef PUT_UINT32_BE
#define PUT_UINT32_BE(n,b,i) \
do { \
(b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
(b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
(b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
(b)[(i) + 3] = (unsigned char) ( (n) ); \
} while( 0 )
#endif
void mbedtls_sha256_init( mbedtls_sha256_context *ctx )
{
SHA256_VALIDATE( ctx != NULL );
memset( ctx, 0, sizeof( mbedtls_sha256_context ) );
}
void mbedtls_sha256_free( mbedtls_sha256_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_sha256_context ) );
}
void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
const mbedtls_sha256_context *src )
{
SHA256_VALIDATE( dst != NULL );
SHA256_VALIDATE( src != NULL );
*dst = *src;
}
/*
* SHA-256 context setup
*/
int mbedtls_sha256_starts_ret( mbedtls_sha256_context *ctx, int is224 )
{
SHA256_VALIDATE_RET( ctx != NULL );
SHA256_VALIDATE_RET( is224 == 0 || is224 == 1 );
ctx->total[0] = 0;
ctx->total[1] = 0;
if( is224 == 0 )
{
/* SHA-256 */
ctx->state[0] = 0x6A09E667;
ctx->state[1] = 0xBB67AE85;
ctx->state[2] = 0x3C6EF372;
ctx->state[3] = 0xA54FF53A;
ctx->state[4] = 0x510E527F;
ctx->state[5] = 0x9B05688C;
ctx->state[6] = 0x1F83D9AB;
ctx->state[7] = 0x5BE0CD19;
}
else
{
/* SHA-224 */
ctx->state[0] = 0xC1059ED8;
ctx->state[1] = 0x367CD507;
ctx->state[2] = 0x3070DD17;
ctx->state[3] = 0xF70E5939;
ctx->state[4] = 0xFFC00B31;
ctx->state[5] = 0x68581511;
ctx->state[6] = 0x64F98FA7;
ctx->state[7] = 0xBEFA4FA4;
}
ctx->is224 = is224;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha256_starts( mbedtls_sha256_context *ctx,
int is224 )
{
mbedtls_sha256_starts_ret( ctx, is224 );
}
#endif
#if !defined(MBEDTLS_SHA256_PROCESS_ALT)
static const uint32_t K[] =
{
0x428A2F98, 0x71374491, 0xB5C0FBCF, 0xE9B5DBA5,
0x3956C25B, 0x59F111F1, 0x923F82A4, 0xAB1C5ED5,
0xD807AA98, 0x12835B01, 0x243185BE, 0x550C7DC3,
0x72BE5D74, 0x80DEB1FE, 0x9BDC06A7, 0xC19BF174,
0xE49B69C1, 0xEFBE4786, 0x0FC19DC6, 0x240CA1CC,
0x2DE92C6F, 0x4A7484AA, 0x5CB0A9DC, 0x76F988DA,
0x983E5152, 0xA831C66D, 0xB00327C8, 0xBF597FC7,
0xC6E00BF3, 0xD5A79147, 0x06CA6351, 0x14292967,
0x27B70A85, 0x2E1B2138, 0x4D2C6DFC, 0x53380D13,
0x650A7354, 0x766A0ABB, 0x81C2C92E, 0x92722C85,
0xA2BFE8A1, 0xA81A664B, 0xC24B8B70, 0xC76C51A3,
0xD192E819, 0xD6990624, 0xF40E3585, 0x106AA070,
0x19A4C116, 0x1E376C08, 0x2748774C, 0x34B0BCB5,
0x391C0CB3, 0x4ED8AA4A, 0x5B9CCA4F, 0x682E6FF3,
0x748F82EE, 0x78A5636F, 0x84C87814, 0x8CC70208,
0x90BEFFFA, 0xA4506CEB, 0xBEF9A3F7, 0xC67178F2,
};
#define SHR(x,n) ((x & 0xFFFFFFFF) >> n)
#define ROTR(x,n) (SHR(x,n) | (x << (32 - n)))
#define S0(x) (ROTR(x, 7) ^ ROTR(x,18) ^ SHR(x, 3))
#define S1(x) (ROTR(x,17) ^ ROTR(x,19) ^ SHR(x,10))
#define S2(x) (ROTR(x, 2) ^ ROTR(x,13) ^ ROTR(x,22))
#define S3(x) (ROTR(x, 6) ^ ROTR(x,11) ^ ROTR(x,25))
#define F0(x,y,z) ((x & y) | (z & (x | y)))
#define F1(x,y,z) (z ^ (x & (y ^ z)))
#define R(t) \
( \
W[t] = S1(W[t - 2]) + W[t - 7] + \
S0(W[t - 15]) + W[t - 16] \
)
#define P(a,b,c,d,e,f,g,h,x,K) \
{ \
temp1 = h + S3(e) + F1(e,f,g) + K + x; \
temp2 = S2(a) + F0(a,b,c); \
d += temp1; h = temp1 + temp2; \
}
int mbedtls_internal_sha256_process( mbedtls_sha256_context *ctx,
const unsigned char data[64] )
{
uint32_t temp1, temp2, W[64];
uint32_t A[8];
unsigned int i;
SHA256_VALIDATE_RET( ctx != NULL );
SHA256_VALIDATE_RET( (const unsigned char *)data != NULL );
for( i = 0; i < 8; i++ )
A[i] = ctx->state[i];
#if defined(MBEDTLS_SHA256_SMALLER)
for( i = 0; i < 64; i++ )
{
if( i < 16 )
GET_UINT32_BE( W[i], data, 4 * i );
else
R( i );
P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], W[i], K[i] );
temp1 = A[7]; A[7] = A[6]; A[6] = A[5]; A[5] = A[4]; A[4] = A[3];
A[3] = A[2]; A[2] = A[1]; A[1] = A[0]; A[0] = temp1;
}
#else /* MBEDTLS_SHA256_SMALLER */
for( i = 0; i < 16; i++ )
GET_UINT32_BE( W[i], data, 4 * i );
for( i = 0; i < 16; i += 8 )
{
P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], W[i+0], K[i+0] );
P( A[7], A[0], A[1], A[2], A[3], A[4], A[5], A[6], W[i+1], K[i+1] );
P( A[6], A[7], A[0], A[1], A[2], A[3], A[4], A[5], W[i+2], K[i+2] );
P( A[5], A[6], A[7], A[0], A[1], A[2], A[3], A[4], W[i+3], K[i+3] );
P( A[4], A[5], A[6], A[7], A[0], A[1], A[2], A[3], W[i+4], K[i+4] );
P( A[3], A[4], A[5], A[6], A[7], A[0], A[1], A[2], W[i+5], K[i+5] );
P( A[2], A[3], A[4], A[5], A[6], A[7], A[0], A[1], W[i+6], K[i+6] );
P( A[1], A[2], A[3], A[4], A[5], A[6], A[7], A[0], W[i+7], K[i+7] );
}
for( i = 16; i < 64; i += 8 )
{
P( A[0], A[1], A[2], A[3], A[4], A[5], A[6], A[7], R(i+0), K[i+0] );
P( A[7], A[0], A[1], A[2], A[3], A[4], A[5], A[6], R(i+1), K[i+1] );
P( A[6], A[7], A[0], A[1], A[2], A[3], A[4], A[5], R(i+2), K[i+2] );
P( A[5], A[6], A[7], A[0], A[1], A[2], A[3], A[4], R(i+3), K[i+3] );
P( A[4], A[5], A[6], A[7], A[0], A[1], A[2], A[3], R(i+4), K[i+4] );
P( A[3], A[4], A[5], A[6], A[7], A[0], A[1], A[2], R(i+5), K[i+5] );
P( A[2], A[3], A[4], A[5], A[6], A[7], A[0], A[1], R(i+6), K[i+6] );
P( A[1], A[2], A[3], A[4], A[5], A[6], A[7], A[0], R(i+7), K[i+7] );
}
#endif /* MBEDTLS_SHA256_SMALLER */
for( i = 0; i < 8; i++ )
ctx->state[i] += A[i];
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha256_process( mbedtls_sha256_context *ctx,
const unsigned char data[64] )
{
mbedtls_internal_sha256_process( ctx, data );
}
#endif
#endif /* !MBEDTLS_SHA256_PROCESS_ALT */
/*
* SHA-256 process buffer
*/
int mbedtls_sha256_update_ret( mbedtls_sha256_context *ctx,
const unsigned char *input,
size_t ilen )
{
int ret;
size_t fill;
uint32_t left;
SHA256_VALIDATE_RET( ctx != NULL );
SHA256_VALIDATE_RET( ilen == 0 || input != NULL );
if( ilen == 0 )
return( 0 );
left = ctx->total[0] & 0x3F;
fill = 64 - left;
ctx->total[0] += (uint32_t) ilen;
ctx->total[0] &= 0xFFFFFFFF;
if( ctx->total[0] < (uint32_t) ilen )
ctx->total[1]++;
if( left && ilen >= fill )
{
memcpy( (void *) (ctx->buffer + left), input, fill );
if( ( ret = mbedtls_internal_sha256_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
input += fill;
ilen -= fill;
left = 0;
}
while( ilen >= 64 )
{
if( ( ret = mbedtls_internal_sha256_process( ctx, input ) ) != 0 )
return( ret );
input += 64;
ilen -= 64;
}
if( ilen > 0 )
memcpy( (void *) (ctx->buffer + left), input, ilen );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha256_update( mbedtls_sha256_context *ctx,
const unsigned char *input,
size_t ilen )
{
mbedtls_sha256_update_ret( ctx, input, ilen );
}
#endif
/*
* SHA-256 final digest
*/
int mbedtls_sha256_finish_ret( mbedtls_sha256_context *ctx,
unsigned char output[32] )
{
int ret;
uint32_t used;
uint32_t high, low;
SHA256_VALIDATE_RET( ctx != NULL );
SHA256_VALIDATE_RET( (unsigned char *)output != NULL );
/*
* Add padding: 0x80 then 0x00 until 8 bytes remain for the length
*/
used = ctx->total[0] & 0x3F;
ctx->buffer[used++] = 0x80;
if( used <= 56 )
{
/* Enough room for padding + length in current block */
memset( ctx->buffer + used, 0, 56 - used );
}
else
{
/* We'll need an extra block */
memset( ctx->buffer + used, 0, 64 - used );
if( ( ret = mbedtls_internal_sha256_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
memset( ctx->buffer, 0, 56 );
}
/*
* Add message length
*/
high = ( ctx->total[0] >> 29 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );
PUT_UINT32_BE( high, ctx->buffer, 56 );
PUT_UINT32_BE( low, ctx->buffer, 60 );
if( ( ret = mbedtls_internal_sha256_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
/*
* Output final state
*/
PUT_UINT32_BE( ctx->state[0], output, 0 );
PUT_UINT32_BE( ctx->state[1], output, 4 );
PUT_UINT32_BE( ctx->state[2], output, 8 );
PUT_UINT32_BE( ctx->state[3], output, 12 );
PUT_UINT32_BE( ctx->state[4], output, 16 );
PUT_UINT32_BE( ctx->state[5], output, 20 );
PUT_UINT32_BE( ctx->state[6], output, 24 );
if( ctx->is224 == 0 )
PUT_UINT32_BE( ctx->state[7], output, 28 );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha256_finish( mbedtls_sha256_context *ctx,
unsigned char output[32] )
{
mbedtls_sha256_finish_ret( ctx, output );
}
#endif
#endif /* !MBEDTLS_SHA256_ALT */
/*
* output = SHA-256( input buffer )
*/
int mbedtls_sha256_ret( const unsigned char *input,
size_t ilen,
unsigned char output[32],
int is224 )
{
int ret;
mbedtls_sha256_context ctx;
SHA256_VALIDATE_RET( is224 == 0 || is224 == 1 );
SHA256_VALIDATE_RET( ilen == 0 || input != NULL );
SHA256_VALIDATE_RET( (unsigned char *)output != NULL );
mbedtls_sha256_init( &ctx );
if( ( ret = mbedtls_sha256_starts_ret( &ctx, is224 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha256_update_ret( &ctx, input, ilen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha256_finish_ret( &ctx, output ) ) != 0 )
goto exit;
exit:
mbedtls_sha256_free( &ctx );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha256( const unsigned char *input,
size_t ilen,
unsigned char output[32],
int is224 )
{
mbedtls_sha256_ret( input, ilen, output, is224 );
}
#endif
#if defined(MBEDTLS_SELF_TEST)
/*
* FIPS-180-2 test vectors
*/
static const unsigned char sha256_test_buf[3][57] =
{
{ "abc" },
{ "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq" },
{ "" }
};
static const size_t sha256_test_buflen[3] =
{
3, 56, 1000
};
static const unsigned char sha256_test_sum[6][32] =
{
/*
* SHA-224 test vectors
*/
{ 0x23, 0x09, 0x7D, 0x22, 0x34, 0x05, 0xD8, 0x22,
0x86, 0x42, 0xA4, 0x77, 0xBD, 0xA2, 0x55, 0xB3,
0x2A, 0xAD, 0xBC, 0xE4, 0xBD, 0xA0, 0xB3, 0xF7,
0xE3, 0x6C, 0x9D, 0xA7 },
{ 0x75, 0x38, 0x8B, 0x16, 0x51, 0x27, 0x76, 0xCC,
0x5D, 0xBA, 0x5D, 0xA1, 0xFD, 0x89, 0x01, 0x50,
0xB0, 0xC6, 0x45, 0x5C, 0xB4, 0xF5, 0x8B, 0x19,
0x52, 0x52, 0x25, 0x25 },
{ 0x20, 0x79, 0x46, 0x55, 0x98, 0x0C, 0x91, 0xD8,
0xBB, 0xB4, 0xC1, 0xEA, 0x97, 0x61, 0x8A, 0x4B,
0xF0, 0x3F, 0x42, 0x58, 0x19, 0x48, 0xB2, 0xEE,
0x4E, 0xE7, 0xAD, 0x67 },
/*
* SHA-256 test vectors
*/
{ 0xBA, 0x78, 0x16, 0xBF, 0x8F, 0x01, 0xCF, 0xEA,
0x41, 0x41, 0x40, 0xDE, 0x5D, 0xAE, 0x22, 0x23,
0xB0, 0x03, 0x61, 0xA3, 0x96, 0x17, 0x7A, 0x9C,
0xB4, 0x10, 0xFF, 0x61, 0xF2, 0x00, 0x15, 0xAD },
{ 0x24, 0x8D, 0x6A, 0x61, 0xD2, 0x06, 0x38, 0xB8,
0xE5, 0xC0, 0x26, 0x93, 0x0C, 0x3E, 0x60, 0x39,
0xA3, 0x3C, 0xE4, 0x59, 0x64, 0xFF, 0x21, 0x67,
0xF6, 0xEC, 0xED, 0xD4, 0x19, 0xDB, 0x06, 0xC1 },
{ 0xCD, 0xC7, 0x6E, 0x5C, 0x99, 0x14, 0xFB, 0x92,
0x81, 0xA1, 0xC7, 0xE2, 0x84, 0xD7, 0x3E, 0x67,
0xF1, 0x80, 0x9A, 0x48, 0xA4, 0x97, 0x20, 0x0E,
0x04, 0x6D, 0x39, 0xCC, 0xC7, 0x11, 0x2C, 0xD0 }
};
/*
* Checkup routine
*/
int mbedtls_sha256_self_test( int verbose )
{
int i, j, k, buflen, ret = 0;
unsigned char *buf;
unsigned char sha256sum[32];
mbedtls_sha256_context ctx;
buf = mbedtls_calloc( 1024, sizeof(unsigned char) );
if( NULL == buf )
{
if( verbose != 0 )
mbedtls_printf( "Buffer allocation failed\n" );
return( 1 );
}
mbedtls_sha256_init( &ctx );
for( i = 0; i < 6; i++ )
{
j = i % 3;
k = i < 3;
if( verbose != 0 )
mbedtls_printf( " SHA-%d test #%d: ", 256 - k * 32, j + 1 );
if( ( ret = mbedtls_sha256_starts_ret( &ctx, k ) ) != 0 )
goto fail;
if( j == 2 )
{
memset( buf, 'a', buflen = 1000 );
for( j = 0; j < 1000; j++ )
{
ret = mbedtls_sha256_update_ret( &ctx, buf, buflen );
if( ret != 0 )
goto fail;
}
}
else
{
ret = mbedtls_sha256_update_ret( &ctx, sha256_test_buf[j],
sha256_test_buflen[j] );
if( ret != 0 )
goto fail;
}
if( ( ret = mbedtls_sha256_finish_ret( &ctx, sha256sum ) ) != 0 )
goto fail;
if( memcmp( sha256sum, sha256_test_sum[i], 32 - k * 4 ) != 0 )
{
ret = 1;
goto fail;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
goto exit;
fail:
if( verbose != 0 )
mbedtls_printf( "failed\n" );
exit:
mbedtls_sha256_free( &ctx );
mbedtls_free( buf );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_SHA256_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/sha256.c | C | apache-2.0 | 16,437 |
/*
* FIPS-180-2 compliant SHA-384/512 implementation
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The SHA-512 Secure Hash Standard was published by NIST in 2002.
*
* http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_SHA512_C)
#include "mbedtls/sha512.h"
#include "mbedtls/platform_util.h"
#if defined(_MSC_VER) || defined(__WATCOMC__)
#define UL64(x) x##ui64
#else
#define UL64(x) x##ULL
#endif
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_printf printf
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#define SHA512_VALIDATE_RET(cond) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_SHA512_BAD_INPUT_DATA )
#define SHA512_VALIDATE(cond) MBEDTLS_INTERNAL_VALIDATE( cond )
#if !defined(MBEDTLS_SHA512_ALT)
/*
* 64-bit integer manipulation macros (big endian)
*/
#ifndef GET_UINT64_BE
#define GET_UINT64_BE(n,b,i) \
{ \
(n) = ( (uint64_t) (b)[(i) ] << 56 ) \
| ( (uint64_t) (b)[(i) + 1] << 48 ) \
| ( (uint64_t) (b)[(i) + 2] << 40 ) \
| ( (uint64_t) (b)[(i) + 3] << 32 ) \
| ( (uint64_t) (b)[(i) + 4] << 24 ) \
| ( (uint64_t) (b)[(i) + 5] << 16 ) \
| ( (uint64_t) (b)[(i) + 6] << 8 ) \
| ( (uint64_t) (b)[(i) + 7] ); \
}
#endif /* GET_UINT64_BE */
#ifndef PUT_UINT64_BE
#define PUT_UINT64_BE(n,b,i) \
{ \
(b)[(i) ] = (unsigned char) ( (n) >> 56 ); \
(b)[(i) + 1] = (unsigned char) ( (n) >> 48 ); \
(b)[(i) + 2] = (unsigned char) ( (n) >> 40 ); \
(b)[(i) + 3] = (unsigned char) ( (n) >> 32 ); \
(b)[(i) + 4] = (unsigned char) ( (n) >> 24 ); \
(b)[(i) + 5] = (unsigned char) ( (n) >> 16 ); \
(b)[(i) + 6] = (unsigned char) ( (n) >> 8 ); \
(b)[(i) + 7] = (unsigned char) ( (n) ); \
}
#endif /* PUT_UINT64_BE */
void mbedtls_sha512_init( mbedtls_sha512_context *ctx )
{
SHA512_VALIDATE( ctx != NULL );
memset( ctx, 0, sizeof( mbedtls_sha512_context ) );
}
void mbedtls_sha512_free( mbedtls_sha512_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_sha512_context ) );
}
void mbedtls_sha512_clone( mbedtls_sha512_context *dst,
const mbedtls_sha512_context *src )
{
SHA512_VALIDATE( dst != NULL );
SHA512_VALIDATE( src != NULL );
*dst = *src;
}
/*
* SHA-512 context setup
*/
int mbedtls_sha512_starts_ret( mbedtls_sha512_context *ctx, int is384 )
{
SHA512_VALIDATE_RET( ctx != NULL );
SHA512_VALIDATE_RET( is384 == 0 || is384 == 1 );
ctx->total[0] = 0;
ctx->total[1] = 0;
if( is384 == 0 )
{
/* SHA-512 */
ctx->state[0] = UL64(0x6A09E667F3BCC908);
ctx->state[1] = UL64(0xBB67AE8584CAA73B);
ctx->state[2] = UL64(0x3C6EF372FE94F82B);
ctx->state[3] = UL64(0xA54FF53A5F1D36F1);
ctx->state[4] = UL64(0x510E527FADE682D1);
ctx->state[5] = UL64(0x9B05688C2B3E6C1F);
ctx->state[6] = UL64(0x1F83D9ABFB41BD6B);
ctx->state[7] = UL64(0x5BE0CD19137E2179);
}
else
{
/* SHA-384 */
ctx->state[0] = UL64(0xCBBB9D5DC1059ED8);
ctx->state[1] = UL64(0x629A292A367CD507);
ctx->state[2] = UL64(0x9159015A3070DD17);
ctx->state[3] = UL64(0x152FECD8F70E5939);
ctx->state[4] = UL64(0x67332667FFC00B31);
ctx->state[5] = UL64(0x8EB44A8768581511);
ctx->state[6] = UL64(0xDB0C2E0D64F98FA7);
ctx->state[7] = UL64(0x47B5481DBEFA4FA4);
}
ctx->is384 = is384;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha512_starts( mbedtls_sha512_context *ctx,
int is384 )
{
mbedtls_sha512_starts_ret( ctx, is384 );
}
#endif
#if !defined(MBEDTLS_SHA512_PROCESS_ALT)
/*
* Round constants
*/
static const uint64_t K[80] =
{
UL64(0x428A2F98D728AE22), UL64(0x7137449123EF65CD),
UL64(0xB5C0FBCFEC4D3B2F), UL64(0xE9B5DBA58189DBBC),
UL64(0x3956C25BF348B538), UL64(0x59F111F1B605D019),
UL64(0x923F82A4AF194F9B), UL64(0xAB1C5ED5DA6D8118),
UL64(0xD807AA98A3030242), UL64(0x12835B0145706FBE),
UL64(0x243185BE4EE4B28C), UL64(0x550C7DC3D5FFB4E2),
UL64(0x72BE5D74F27B896F), UL64(0x80DEB1FE3B1696B1),
UL64(0x9BDC06A725C71235), UL64(0xC19BF174CF692694),
UL64(0xE49B69C19EF14AD2), UL64(0xEFBE4786384F25E3),
UL64(0x0FC19DC68B8CD5B5), UL64(0x240CA1CC77AC9C65),
UL64(0x2DE92C6F592B0275), UL64(0x4A7484AA6EA6E483),
UL64(0x5CB0A9DCBD41FBD4), UL64(0x76F988DA831153B5),
UL64(0x983E5152EE66DFAB), UL64(0xA831C66D2DB43210),
UL64(0xB00327C898FB213F), UL64(0xBF597FC7BEEF0EE4),
UL64(0xC6E00BF33DA88FC2), UL64(0xD5A79147930AA725),
UL64(0x06CA6351E003826F), UL64(0x142929670A0E6E70),
UL64(0x27B70A8546D22FFC), UL64(0x2E1B21385C26C926),
UL64(0x4D2C6DFC5AC42AED), UL64(0x53380D139D95B3DF),
UL64(0x650A73548BAF63DE), UL64(0x766A0ABB3C77B2A8),
UL64(0x81C2C92E47EDAEE6), UL64(0x92722C851482353B),
UL64(0xA2BFE8A14CF10364), UL64(0xA81A664BBC423001),
UL64(0xC24B8B70D0F89791), UL64(0xC76C51A30654BE30),
UL64(0xD192E819D6EF5218), UL64(0xD69906245565A910),
UL64(0xF40E35855771202A), UL64(0x106AA07032BBD1B8),
UL64(0x19A4C116B8D2D0C8), UL64(0x1E376C085141AB53),
UL64(0x2748774CDF8EEB99), UL64(0x34B0BCB5E19B48A8),
UL64(0x391C0CB3C5C95A63), UL64(0x4ED8AA4AE3418ACB),
UL64(0x5B9CCA4F7763E373), UL64(0x682E6FF3D6B2B8A3),
UL64(0x748F82EE5DEFB2FC), UL64(0x78A5636F43172F60),
UL64(0x84C87814A1F0AB72), UL64(0x8CC702081A6439EC),
UL64(0x90BEFFFA23631E28), UL64(0xA4506CEBDE82BDE9),
UL64(0xBEF9A3F7B2C67915), UL64(0xC67178F2E372532B),
UL64(0xCA273ECEEA26619C), UL64(0xD186B8C721C0C207),
UL64(0xEADA7DD6CDE0EB1E), UL64(0xF57D4F7FEE6ED178),
UL64(0x06F067AA72176FBA), UL64(0x0A637DC5A2C898A6),
UL64(0x113F9804BEF90DAE), UL64(0x1B710B35131C471B),
UL64(0x28DB77F523047D84), UL64(0x32CAAB7B40C72493),
UL64(0x3C9EBE0A15C9BEBC), UL64(0x431D67C49C100D4C),
UL64(0x4CC5D4BECB3E42B6), UL64(0x597F299CFC657E2A),
UL64(0x5FCB6FAB3AD6FAEC), UL64(0x6C44198C4A475817)
};
int mbedtls_internal_sha512_process( mbedtls_sha512_context *ctx,
const unsigned char data[128] )
{
int i;
uint64_t temp1, temp2, W[80];
uint64_t A, B, C, D, E, F, G, H;
SHA512_VALIDATE_RET( ctx != NULL );
SHA512_VALIDATE_RET( (const unsigned char *)data != NULL );
#define SHR(x,n) (x >> n)
#define ROTR(x,n) (SHR(x,n) | (x << (64 - n)))
#define S0(x) (ROTR(x, 1) ^ ROTR(x, 8) ^ SHR(x, 7))
#define S1(x) (ROTR(x,19) ^ ROTR(x,61) ^ SHR(x, 6))
#define S2(x) (ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39))
#define S3(x) (ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41))
#define F0(x,y,z) ((x & y) | (z & (x | y)))
#define F1(x,y,z) (z ^ (x & (y ^ z)))
#define P(a,b,c,d,e,f,g,h,x,K) \
{ \
temp1 = h + S3(e) + F1(e,f,g) + K + x; \
temp2 = S2(a) + F0(a,b,c); \
d += temp1; h = temp1 + temp2; \
}
for( i = 0; i < 16; i++ )
{
GET_UINT64_BE( W[i], data, i << 3 );
}
for( ; i < 80; i++ )
{
W[i] = S1(W[i - 2]) + W[i - 7] +
S0(W[i - 15]) + W[i - 16];
}
A = ctx->state[0];
B = ctx->state[1];
C = ctx->state[2];
D = ctx->state[3];
E = ctx->state[4];
F = ctx->state[5];
G = ctx->state[6];
H = ctx->state[7];
i = 0;
do
{
P( A, B, C, D, E, F, G, H, W[i], K[i] ); i++;
P( H, A, B, C, D, E, F, G, W[i], K[i] ); i++;
P( G, H, A, B, C, D, E, F, W[i], K[i] ); i++;
P( F, G, H, A, B, C, D, E, W[i], K[i] ); i++;
P( E, F, G, H, A, B, C, D, W[i], K[i] ); i++;
P( D, E, F, G, H, A, B, C, W[i], K[i] ); i++;
P( C, D, E, F, G, H, A, B, W[i], K[i] ); i++;
P( B, C, D, E, F, G, H, A, W[i], K[i] ); i++;
}
while( i < 80 );
ctx->state[0] += A;
ctx->state[1] += B;
ctx->state[2] += C;
ctx->state[3] += D;
ctx->state[4] += E;
ctx->state[5] += F;
ctx->state[6] += G;
ctx->state[7] += H;
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha512_process( mbedtls_sha512_context *ctx,
const unsigned char data[128] )
{
mbedtls_internal_sha512_process( ctx, data );
}
#endif
#endif /* !MBEDTLS_SHA512_PROCESS_ALT */
/*
* SHA-512 process buffer
*/
int mbedtls_sha512_update_ret( mbedtls_sha512_context *ctx,
const unsigned char *input,
size_t ilen )
{
int ret;
size_t fill;
unsigned int left;
SHA512_VALIDATE_RET( ctx != NULL );
SHA512_VALIDATE_RET( ilen == 0 || input != NULL );
if( ilen == 0 )
return( 0 );
left = (unsigned int) (ctx->total[0] & 0x7F);
fill = 128 - left;
ctx->total[0] += (uint64_t) ilen;
if( ctx->total[0] < (uint64_t) ilen )
ctx->total[1]++;
if( left && ilen >= fill )
{
memcpy( (void *) (ctx->buffer + left), input, fill );
if( ( ret = mbedtls_internal_sha512_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
input += fill;
ilen -= fill;
left = 0;
}
while( ilen >= 128 )
{
if( ( ret = mbedtls_internal_sha512_process( ctx, input ) ) != 0 )
return( ret );
input += 128;
ilen -= 128;
}
if( ilen > 0 )
memcpy( (void *) (ctx->buffer + left), input, ilen );
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha512_update( mbedtls_sha512_context *ctx,
const unsigned char *input,
size_t ilen )
{
mbedtls_sha512_update_ret( ctx, input, ilen );
}
#endif
/*
* SHA-512 final digest
*/
int mbedtls_sha512_finish_ret( mbedtls_sha512_context *ctx,
unsigned char output[64] )
{
int ret;
unsigned used;
uint64_t high, low;
SHA512_VALIDATE_RET( ctx != NULL );
SHA512_VALIDATE_RET( (unsigned char *)output != NULL );
/*
* Add padding: 0x80 then 0x00 until 16 bytes remain for the length
*/
used = ctx->total[0] & 0x7F;
ctx->buffer[used++] = 0x80;
if( used <= 112 )
{
/* Enough room for padding + length in current block */
memset( ctx->buffer + used, 0, 112 - used );
}
else
{
/* We'll need an extra block */
memset( ctx->buffer + used, 0, 128 - used );
if( ( ret = mbedtls_internal_sha512_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
memset( ctx->buffer, 0, 112 );
}
/*
* Add message length
*/
high = ( ctx->total[0] >> 61 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );
PUT_UINT64_BE( high, ctx->buffer, 112 );
PUT_UINT64_BE( low, ctx->buffer, 120 );
if( ( ret = mbedtls_internal_sha512_process( ctx, ctx->buffer ) ) != 0 )
return( ret );
/*
* Output final state
*/
PUT_UINT64_BE( ctx->state[0], output, 0 );
PUT_UINT64_BE( ctx->state[1], output, 8 );
PUT_UINT64_BE( ctx->state[2], output, 16 );
PUT_UINT64_BE( ctx->state[3], output, 24 );
PUT_UINT64_BE( ctx->state[4], output, 32 );
PUT_UINT64_BE( ctx->state[5], output, 40 );
if( ctx->is384 == 0 )
{
PUT_UINT64_BE( ctx->state[6], output, 48 );
PUT_UINT64_BE( ctx->state[7], output, 56 );
}
return( 0 );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha512_finish( mbedtls_sha512_context *ctx,
unsigned char output[64] )
{
mbedtls_sha512_finish_ret( ctx, output );
}
#endif
#endif /* !MBEDTLS_SHA512_ALT */
/*
* output = SHA-512( input buffer )
*/
int mbedtls_sha512_ret( const unsigned char *input,
size_t ilen,
unsigned char output[64],
int is384 )
{
int ret;
mbedtls_sha512_context ctx;
SHA512_VALIDATE_RET( is384 == 0 || is384 == 1 );
SHA512_VALIDATE_RET( ilen == 0 || input != NULL );
SHA512_VALIDATE_RET( (unsigned char *)output != NULL );
mbedtls_sha512_init( &ctx );
if( ( ret = mbedtls_sha512_starts_ret( &ctx, is384 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha512_update_ret( &ctx, input, ilen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha512_finish_ret( &ctx, output ) ) != 0 )
goto exit;
exit:
mbedtls_sha512_free( &ctx );
return( ret );
}
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
void mbedtls_sha512( const unsigned char *input,
size_t ilen,
unsigned char output[64],
int is384 )
{
mbedtls_sha512_ret( input, ilen, output, is384 );
}
#endif
#if defined(MBEDTLS_SELF_TEST)
/*
* FIPS-180-2 test vectors
*/
static const unsigned char sha512_test_buf[3][113] =
{
{ "abc" },
{ "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn"
"hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu" },
{ "" }
};
static const size_t sha512_test_buflen[3] =
{
3, 112, 1000
};
static const unsigned char sha512_test_sum[6][64] =
{
/*
* SHA-384 test vectors
*/
{ 0xCB, 0x00, 0x75, 0x3F, 0x45, 0xA3, 0x5E, 0x8B,
0xB5, 0xA0, 0x3D, 0x69, 0x9A, 0xC6, 0x50, 0x07,
0x27, 0x2C, 0x32, 0xAB, 0x0E, 0xDE, 0xD1, 0x63,
0x1A, 0x8B, 0x60, 0x5A, 0x43, 0xFF, 0x5B, 0xED,
0x80, 0x86, 0x07, 0x2B, 0xA1, 0xE7, 0xCC, 0x23,
0x58, 0xBA, 0xEC, 0xA1, 0x34, 0xC8, 0x25, 0xA7 },
{ 0x09, 0x33, 0x0C, 0x33, 0xF7, 0x11, 0x47, 0xE8,
0x3D, 0x19, 0x2F, 0xC7, 0x82, 0xCD, 0x1B, 0x47,
0x53, 0x11, 0x1B, 0x17, 0x3B, 0x3B, 0x05, 0xD2,
0x2F, 0xA0, 0x80, 0x86, 0xE3, 0xB0, 0xF7, 0x12,
0xFC, 0xC7, 0xC7, 0x1A, 0x55, 0x7E, 0x2D, 0xB9,
0x66, 0xC3, 0xE9, 0xFA, 0x91, 0x74, 0x60, 0x39 },
{ 0x9D, 0x0E, 0x18, 0x09, 0x71, 0x64, 0x74, 0xCB,
0x08, 0x6E, 0x83, 0x4E, 0x31, 0x0A, 0x4A, 0x1C,
0xED, 0x14, 0x9E, 0x9C, 0x00, 0xF2, 0x48, 0x52,
0x79, 0x72, 0xCE, 0xC5, 0x70, 0x4C, 0x2A, 0x5B,
0x07, 0xB8, 0xB3, 0xDC, 0x38, 0xEC, 0xC4, 0xEB,
0xAE, 0x97, 0xDD, 0xD8, 0x7F, 0x3D, 0x89, 0x85 },
/*
* SHA-512 test vectors
*/
{ 0xDD, 0xAF, 0x35, 0xA1, 0x93, 0x61, 0x7A, 0xBA,
0xCC, 0x41, 0x73, 0x49, 0xAE, 0x20, 0x41, 0x31,
0x12, 0xE6, 0xFA, 0x4E, 0x89, 0xA9, 0x7E, 0xA2,
0x0A, 0x9E, 0xEE, 0xE6, 0x4B, 0x55, 0xD3, 0x9A,
0x21, 0x92, 0x99, 0x2A, 0x27, 0x4F, 0xC1, 0xA8,
0x36, 0xBA, 0x3C, 0x23, 0xA3, 0xFE, 0xEB, 0xBD,
0x45, 0x4D, 0x44, 0x23, 0x64, 0x3C, 0xE8, 0x0E,
0x2A, 0x9A, 0xC9, 0x4F, 0xA5, 0x4C, 0xA4, 0x9F },
{ 0x8E, 0x95, 0x9B, 0x75, 0xDA, 0xE3, 0x13, 0xDA,
0x8C, 0xF4, 0xF7, 0x28, 0x14, 0xFC, 0x14, 0x3F,
0x8F, 0x77, 0x79, 0xC6, 0xEB, 0x9F, 0x7F, 0xA1,
0x72, 0x99, 0xAE, 0xAD, 0xB6, 0x88, 0x90, 0x18,
0x50, 0x1D, 0x28, 0x9E, 0x49, 0x00, 0xF7, 0xE4,
0x33, 0x1B, 0x99, 0xDE, 0xC4, 0xB5, 0x43, 0x3A,
0xC7, 0xD3, 0x29, 0xEE, 0xB6, 0xDD, 0x26, 0x54,
0x5E, 0x96, 0xE5, 0x5B, 0x87, 0x4B, 0xE9, 0x09 },
{ 0xE7, 0x18, 0x48, 0x3D, 0x0C, 0xE7, 0x69, 0x64,
0x4E, 0x2E, 0x42, 0xC7, 0xBC, 0x15, 0xB4, 0x63,
0x8E, 0x1F, 0x98, 0xB1, 0x3B, 0x20, 0x44, 0x28,
0x56, 0x32, 0xA8, 0x03, 0xAF, 0xA9, 0x73, 0xEB,
0xDE, 0x0F, 0xF2, 0x44, 0x87, 0x7E, 0xA6, 0x0A,
0x4C, 0xB0, 0x43, 0x2C, 0xE5, 0x77, 0xC3, 0x1B,
0xEB, 0x00, 0x9C, 0x5C, 0x2C, 0x49, 0xAA, 0x2E,
0x4E, 0xAD, 0xB2, 0x17, 0xAD, 0x8C, 0xC0, 0x9B }
};
/*
* Checkup routine
*/
int mbedtls_sha512_self_test( int verbose )
{
int i, j, k, buflen, ret = 0;
unsigned char *buf;
unsigned char sha512sum[64];
mbedtls_sha512_context ctx;
buf = mbedtls_calloc( 1024, sizeof(unsigned char) );
if( NULL == buf )
{
if( verbose != 0 )
mbedtls_printf( "Buffer allocation failed\n" );
return( 1 );
}
mbedtls_sha512_init( &ctx );
for( i = 0; i < 6; i++ )
{
j = i % 3;
k = i < 3;
if( verbose != 0 )
mbedtls_printf( " SHA-%d test #%d: ", 512 - k * 128, j + 1 );
if( ( ret = mbedtls_sha512_starts_ret( &ctx, k ) ) != 0 )
goto fail;
if( j == 2 )
{
memset( buf, 'a', buflen = 1000 );
for( j = 0; j < 1000; j++ )
{
ret = mbedtls_sha512_update_ret( &ctx, buf, buflen );
if( ret != 0 )
goto fail;
}
}
else
{
ret = mbedtls_sha512_update_ret( &ctx, sha512_test_buf[j],
sha512_test_buflen[j] );
if( ret != 0 )
goto fail;
}
if( ( ret = mbedtls_sha512_finish_ret( &ctx, sha512sum ) ) != 0 )
goto fail;
if( memcmp( sha512sum, sha512_test_sum[i], 64 - k * 16 ) != 0 )
{
ret = 1;
goto fail;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
goto exit;
fail:
if( verbose != 0 )
mbedtls_printf( "failed\n" );
exit:
mbedtls_sha512_free( &ctx );
mbedtls_free( buf );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_SHA512_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/sha512.c | C | apache-2.0 | 18,689 |
/*
* SSL session cache implementation
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* These session callbacks use a simple chained list
* to store and retrieve the session information.
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_SSL_CACHE_C)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#include "mbedtls/ssl_cache.h"
#include <string.h>
void mbedtls_ssl_cache_init( mbedtls_ssl_cache_context *cache )
{
memset( cache, 0, sizeof( mbedtls_ssl_cache_context ) );
cache->timeout = MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT;
cache->max_entries = MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES;
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_init( &cache->mutex );
#endif
}
int mbedtls_ssl_cache_get( void *data, mbedtls_ssl_session *session )
{
int ret = 1;
#if defined(MBEDTLS_HAVE_TIME)
mbedtls_time_t t = mbedtls_time( NULL );
#endif
mbedtls_ssl_cache_context *cache = (mbedtls_ssl_cache_context *) data;
mbedtls_ssl_cache_entry *cur, *entry;
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_lock( &cache->mutex ) != 0 )
return( 1 );
#endif
cur = cache->chain;
entry = NULL;
while( cur != NULL )
{
entry = cur;
cur = cur->next;
#if defined(MBEDTLS_HAVE_TIME)
if( cache->timeout != 0 &&
(int) ( t - entry->timestamp ) > cache->timeout )
continue;
#endif
if( session->ciphersuite != entry->session.ciphersuite ||
session->compression != entry->session.compression ||
session->id_len != entry->session.id_len )
continue;
if( memcmp( session->id, entry->session.id,
entry->session.id_len ) != 0 )
continue;
memcpy( session->master, entry->session.master, 48 );
session->verify_result = entry->session.verify_result;
#if defined(MBEDTLS_X509_CRT_PARSE_C)
/*
* Restore peer certificate (without rest of the original chain)
*/
if( entry->peer_cert.p != NULL )
{
if( ( session->peer_cert = mbedtls_calloc( 1,
sizeof(mbedtls_x509_crt) ) ) == NULL )
{
ret = 1;
goto exit;
}
mbedtls_x509_crt_init( session->peer_cert );
if( mbedtls_x509_crt_parse( session->peer_cert, entry->peer_cert.p,
entry->peer_cert.len ) != 0 )
{
mbedtls_free( session->peer_cert );
session->peer_cert = NULL;
ret = 1;
goto exit;
}
}
#endif /* MBEDTLS_X509_CRT_PARSE_C */
ret = 0;
goto exit;
}
exit:
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &cache->mutex ) != 0 )
ret = 1;
#endif
return( ret );
}
int mbedtls_ssl_cache_set( void *data, const mbedtls_ssl_session *session )
{
int ret = 1;
#if defined(MBEDTLS_HAVE_TIME)
mbedtls_time_t t = mbedtls_time( NULL ), oldest = 0;
mbedtls_ssl_cache_entry *old = NULL;
#endif
mbedtls_ssl_cache_context *cache = (mbedtls_ssl_cache_context *) data;
mbedtls_ssl_cache_entry *cur, *prv;
int count = 0;
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &cache->mutex ) ) != 0 )
return( ret );
#endif
cur = cache->chain;
prv = NULL;
while( cur != NULL )
{
count++;
#if defined(MBEDTLS_HAVE_TIME)
if( cache->timeout != 0 &&
(int) ( t - cur->timestamp ) > cache->timeout )
{
cur->timestamp = t;
break; /* expired, reuse this slot, update timestamp */
}
#endif
if( memcmp( session->id, cur->session.id, cur->session.id_len ) == 0 )
break; /* client reconnected, keep timestamp for session id */
#if defined(MBEDTLS_HAVE_TIME)
if( oldest == 0 || cur->timestamp < oldest )
{
oldest = cur->timestamp;
old = cur;
}
#endif
prv = cur;
cur = cur->next;
}
if( cur == NULL )
{
#if defined(MBEDTLS_HAVE_TIME)
/*
* Reuse oldest entry if max_entries reached
*/
if( count >= cache->max_entries )
{
if( old == NULL )
{
ret = 1;
goto exit;
}
cur = old;
}
#else /* MBEDTLS_HAVE_TIME */
/*
* Reuse first entry in chain if max_entries reached,
* but move to last place
*/
if( count >= cache->max_entries )
{
if( cache->chain == NULL )
{
ret = 1;
goto exit;
}
cur = cache->chain;
cache->chain = cur->next;
cur->next = NULL;
prv->next = cur;
}
#endif /* MBEDTLS_HAVE_TIME */
else
{
/*
* max_entries not reached, create new entry
*/
cur = mbedtls_calloc( 1, sizeof(mbedtls_ssl_cache_entry) );
if( cur == NULL )
{
ret = 1;
goto exit;
}
if( prv == NULL )
cache->chain = cur;
else
prv->next = cur;
}
#if defined(MBEDTLS_HAVE_TIME)
cur->timestamp = t;
#endif
}
memcpy( &cur->session, session, sizeof( mbedtls_ssl_session ) );
#if defined(MBEDTLS_X509_CRT_PARSE_C)
/*
* If we're reusing an entry, free its certificate first
*/
if( cur->peer_cert.p != NULL )
{
mbedtls_free( cur->peer_cert.p );
memset( &cur->peer_cert, 0, sizeof(mbedtls_x509_buf) );
}
/*
* Store peer certificate
*/
if( session->peer_cert != NULL )
{
cur->peer_cert.p = mbedtls_calloc( 1, session->peer_cert->raw.len );
if( cur->peer_cert.p == NULL )
{
ret = 1;
goto exit;
}
memcpy( cur->peer_cert.p, session->peer_cert->raw.p,
session->peer_cert->raw.len );
cur->peer_cert.len = session->peer_cert->raw.len;
cur->session.peer_cert = NULL;
}
#endif /* MBEDTLS_X509_CRT_PARSE_C */
ret = 0;
exit:
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &cache->mutex ) != 0 )
ret = 1;
#endif
return( ret );
}
#if defined(MBEDTLS_HAVE_TIME)
void mbedtls_ssl_cache_set_timeout( mbedtls_ssl_cache_context *cache, int timeout )
{
if( timeout < 0 ) timeout = 0;
cache->timeout = timeout;
}
#endif /* MBEDTLS_HAVE_TIME */
void mbedtls_ssl_cache_set_max_entries( mbedtls_ssl_cache_context *cache, int max )
{
if( max < 0 ) max = 0;
cache->max_entries = max;
}
void mbedtls_ssl_cache_free( mbedtls_ssl_cache_context *cache )
{
mbedtls_ssl_cache_entry *cur, *prv;
cur = cache->chain;
while( cur != NULL )
{
prv = cur;
cur = cur->next;
mbedtls_ssl_session_free( &prv->session );
#if defined(MBEDTLS_X509_CRT_PARSE_C)
mbedtls_free( prv->peer_cert.p );
#endif /* MBEDTLS_X509_CRT_PARSE_C */
mbedtls_free( prv );
}
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_free( &cache->mutex );
#endif
cache->chain = NULL;
}
#endif /* MBEDTLS_SSL_CACHE_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/ssl_cache.c | C | apache-2.0 | 8,175 |
/**
* \file ssl_ciphersuites.c
*
* \brief SSL ciphersuites for mbed TLS
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_SSL_TLS_C)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#endif
#include "mbedtls/ssl_ciphersuites.h"
#include "mbedtls/ssl.h"
#include <string.h>
/*
* Ordered from most preferred to least preferred in terms of security.
*
* Current rule (except rc4, weak and null which come last):
* 1. By key exchange:
* Forward-secure non-PSK > forward-secure PSK > ECJPAKE > other non-PSK > other PSK
* 2. By key length and cipher:
* ChaCha > AES-256 > Camellia-256 > ARIA-256 > AES-128 > Camellia-128 > ARIA-128 > 3DES
* 3. By cipher mode when relevant GCM > CCM > CBC > CCM_8
* 4. By hash function used when relevant
* 5. By key exchange/auth again: EC > non-EC
*/
static const int ciphersuite_preference[] =
{
#if defined(MBEDTLS_SSL_CIPHERSUITES)
MBEDTLS_SSL_CIPHERSUITES,
#else
/* Chacha-Poly ephemeral suites */
MBEDTLS_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
MBEDTLS_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
/* All AES-256 ephemeral suites */
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM,
MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384,
MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,
MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8,
MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM_8,
/* All CAMELLIA-256 ephemeral suites */
MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384,
MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384,
MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384,
MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384,
MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256,
MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA,
/* All ARIA-256 ephemeral suites */
MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384,
MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384,
MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384,
MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384,
MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384,
/* All AES-128 ephemeral suites */
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM,
MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8,
MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM_8,
/* All CAMELLIA-128 ephemeral suites */
MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256,
MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256,
MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256,
MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256,
MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256,
MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA,
/* All ARIA-128 ephemeral suites */
MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256,
MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256,
MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256,
MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256,
MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256,
/* All remaining >= 128-bit ephemeral suites */
MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA,
MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA,
MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA,
/* The PSK ephemeral suites */
MBEDTLS_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256,
MBEDTLS_TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256,
MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384,
MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM,
MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384,
MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384,
MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384,
MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384,
MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384,
MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM_8,
MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384,
MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384,
MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384,
MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256,
MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM,
MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256,
MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256,
MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA,
MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA,
MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256,
MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256,
MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256,
MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM_8,
MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256,
MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256,
MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256,
MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA,
MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA,
/* The ECJPAKE suite */
MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8,
/* All AES-256 suites */
MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384,
MBEDTLS_TLS_RSA_WITH_AES_256_CCM,
MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256,
MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384,
MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384,
MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384,
MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384,
MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_RSA_WITH_AES_256_CCM_8,
/* All CAMELLIA-256 suites */
MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384,
MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256,
MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA,
MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384,
MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384,
MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384,
MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384,
/* All ARIA-256 suites */
MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384,
MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384,
MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384,
MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384,
MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384,
MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384,
/* All AES-128 suites */
MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256,
MBEDTLS_TLS_RSA_WITH_AES_128_CCM,
MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256,
MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA,
MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256,
MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256,
MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA,
MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256,
MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256,
MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA,
MBEDTLS_TLS_RSA_WITH_AES_128_CCM_8,
/* All CAMELLIA-128 suites */
MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256,
MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256,
MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA,
MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256,
MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256,
MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256,
MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256,
/* All ARIA-128 suites */
MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256,
MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256,
MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256,
MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256,
MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256,
MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256,
/* All remaining >= 128-bit suites */
MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA,
MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA,
MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA,
/* The RSA PSK suites */
MBEDTLS_TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256,
MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384,
MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384,
MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384,
MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384,
MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384,
MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384,
MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256,
MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256,
MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA,
MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256,
MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256,
MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256,
MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256,
MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA,
/* The PSK suites */
MBEDTLS_TLS_PSK_WITH_CHACHA20_POLY1305_SHA256,
MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384,
MBEDTLS_TLS_PSK_WITH_AES_256_CCM,
MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384,
MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA,
MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384,
MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384,
MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8,
MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384,
MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384,
MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256,
MBEDTLS_TLS_PSK_WITH_AES_128_CCM,
MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256,
MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA,
MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256,
MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256,
MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8,
MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256,
MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256,
MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA,
/* RC4 suites */
MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA,
MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA,
MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA,
MBEDTLS_TLS_RSA_WITH_RC4_128_SHA,
MBEDTLS_TLS_RSA_WITH_RC4_128_MD5,
MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA,
MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA,
MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA,
MBEDTLS_TLS_PSK_WITH_RC4_128_SHA,
/* Weak suites */
MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA,
MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA,
/* NULL suites */
MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA,
MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA,
MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384,
MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256,
MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA,
MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384,
MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256,
MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA,
MBEDTLS_TLS_RSA_WITH_NULL_SHA256,
MBEDTLS_TLS_RSA_WITH_NULL_SHA,
MBEDTLS_TLS_RSA_WITH_NULL_MD5,
MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA,
MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA,
MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384,
MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256,
MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA,
MBEDTLS_TLS_PSK_WITH_NULL_SHA384,
MBEDTLS_TLS_PSK_WITH_NULL_SHA256,
MBEDTLS_TLS_PSK_WITH_NULL_SHA,
#endif /* MBEDTLS_SSL_CIPHERSUITES */
0
};
static const mbedtls_ssl_ciphersuite_t ciphersuite_definitions[] =
{
#if defined(MBEDTLS_CHACHAPOLY_C) && \
defined(MBEDTLS_SHA256_C) && \
defined(MBEDTLS_SSL_PROTO_TLS1_2)
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)
{ MBEDTLS_TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
"TLS-ECDHE-RSA-WITH-CHACHA20-POLY1305-SHA256",
MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256,
MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256,
"TLS-ECDHE-ECDSA-WITH-CHACHA20-POLY1305-SHA256",
MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256,
MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
{ MBEDTLS_TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256,
"TLS-DHE-RSA-WITH-CHACHA20-POLY1305-SHA256",
MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256,
MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
{ MBEDTLS_TLS_PSK_WITH_CHACHA20_POLY1305_SHA256,
"TLS-PSK-WITH-CHACHA20-POLY1305-SHA256",
MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256,
MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
{ MBEDTLS_TLS_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256,
"TLS-ECDHE-PSK-WITH-CHACHA20-POLY1305-SHA256",
MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256,
MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
{ MBEDTLS_TLS_DHE_PSK_WITH_CHACHA20_POLY1305_SHA256,
"TLS-DHE-PSK-WITH-CHACHA20-POLY1305-SHA256",
MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256,
MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
{ MBEDTLS_TLS_RSA_PSK_WITH_CHACHA20_POLY1305_SHA256,
"TLS-RSA-PSK-WITH-CHACHA20-POLY1305-SHA256",
MBEDTLS_CIPHER_CHACHA20_POLY1305, MBEDTLS_MD_SHA256,
MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#endif /* MBEDTLS_CHACHAPOLY_C &&
MBEDTLS_SHA256_C &&
MBEDTLS_SSL_PROTO_TLS1_2 */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
#if defined(MBEDTLS_AES_C)
#if defined(MBEDTLS_SHA1_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, "TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, "TLS-ECDHE-ECDSA-WITH-AES-256-CBC-SHA",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256, "TLS-ECDHE-ECDSA-WITH-AES-128-CBC-SHA256",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256, "TLS-ECDHE-ECDSA-WITH-AES-128-GCM-SHA256",
MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384, "TLS-ECDHE-ECDSA-WITH-AES-256-CBC-SHA384",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, "TLS-ECDHE-ECDSA-WITH-AES-256-GCM-SHA384",
MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_SHA512_C */
#if defined(MBEDTLS_CCM_C)
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM, "TLS-ECDHE-ECDSA-WITH-AES-256-CCM",
MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8, "TLS-ECDHE-ECDSA-WITH-AES-256-CCM-8",
MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_SHORT_TAG },
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM, "TLS-ECDHE-ECDSA-WITH-AES-128-CCM",
MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8, "TLS-ECDHE-ECDSA-WITH-AES-128-CCM-8",
MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_SHORT_TAG },
#endif /* MBEDTLS_CCM_C */
#endif /* MBEDTLS_AES_C */
#if defined(MBEDTLS_CAMELLIA_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-128-CBC-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-256-CBC-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-128-GCM-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDHE-ECDSA-WITH-CAMELLIA-256-GCM-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_CAMELLIA_C */
#if defined(MBEDTLS_DES_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDHE-ECDSA-WITH-3DES-EDE-CBC-SHA",
MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_ARC4_C)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA, "TLS-ECDHE-ECDSA-WITH-RC4-128-SHA",
MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_NODTLS },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_ARC4_C */
#if defined(MBEDTLS_CIPHER_NULL_CIPHER)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA, "TLS-ECDHE-ECDSA-WITH-NULL-SHA",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_NULL_CIPHER */
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)
#if defined(MBEDTLS_AES_C)
#if defined(MBEDTLS_SHA1_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
{ MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, "TLS-ECDHE-RSA-WITH-AES-128-CBC-SHA",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA, "TLS-ECDHE-RSA-WITH-AES-256-CBC-SHA",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
{ MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, "TLS-ECDHE-RSA-WITH-AES-128-CBC-SHA256",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
{ MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256, "TLS-ECDHE-RSA-WITH-AES-128-GCM-SHA256",
MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
{ MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384, "TLS-ECDHE-RSA-WITH-AES-256-CBC-SHA384",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
{ MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, "TLS-ECDHE-RSA-WITH-AES-256-GCM-SHA384",
MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_AES_C */
#if defined(MBEDTLS_CAMELLIA_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDHE-RSA-WITH-CAMELLIA-128-CBC-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDHE-RSA-WITH-CAMELLIA-256-CBC-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDHE-RSA-WITH-CAMELLIA-128-GCM-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDHE-RSA-WITH-CAMELLIA-256-GCM-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_CAMELLIA_C */
#if defined(MBEDTLS_DES_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDHE-RSA-WITH-3DES-EDE-CBC-SHA",
MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_ARC4_C)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA, "TLS-ECDHE-RSA-WITH-RC4-128-SHA",
MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_NODTLS },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_ARC4_C */
#if defined(MBEDTLS_CIPHER_NULL_CIPHER)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA, "TLS-ECDHE-RSA-WITH-NULL-SHA",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_NULL_CIPHER */
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
#if defined(MBEDTLS_AES_C)
#if defined(MBEDTLS_SHA512_C) && defined(MBEDTLS_GCM_C)
{ MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384, "TLS-DHE-RSA-WITH-AES-256-GCM-SHA384",
MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C && MBEDTLS_GCM_C */
#if defined(MBEDTLS_SHA256_C)
#if defined(MBEDTLS_GCM_C)
{ MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256, "TLS-DHE-RSA-WITH-AES-128-GCM-SHA256",
MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_GCM_C */
#if defined(MBEDTLS_CIPHER_MODE_CBC)
{ MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256, "TLS-DHE-RSA-WITH-AES-128-CBC-SHA256",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256, "TLS-DHE-RSA-WITH-AES-256-CBC-SHA256",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA, "TLS-DHE-RSA-WITH-AES-128-CBC-SHA",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA, "TLS-DHE-RSA-WITH-AES-256-CBC-SHA",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_CCM_C)
{ MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM, "TLS-DHE-RSA-WITH-AES-256-CCM",
MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CCM_8, "TLS-DHE-RSA-WITH-AES-256-CCM-8",
MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_SHORT_TAG },
{ MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM, "TLS-DHE-RSA-WITH-AES-128-CCM",
MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CCM_8, "TLS-DHE-RSA-WITH-AES-128-CCM-8",
MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_SHORT_TAG },
#endif /* MBEDTLS_CCM_C */
#endif /* MBEDTLS_AES_C */
#if defined(MBEDTLS_CAMELLIA_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-DHE-RSA-WITH-CAMELLIA-128-CBC-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256, "TLS-DHE-RSA-WITH-CAMELLIA-256-CBC-SHA256",
MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA, "TLS-DHE-RSA-WITH-CAMELLIA-128-CBC-SHA",
MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA, "TLS-DHE-RSA-WITH-CAMELLIA-256-CBC-SHA",
MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-DHE-RSA-WITH-CAMELLIA-128-GCM-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-DHE-RSA-WITH-CAMELLIA-256-GCM-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_CAMELLIA_C */
#if defined(MBEDTLS_DES_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-DHE-RSA-WITH-3DES-EDE-CBC-SHA",
MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_DES_C */
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
#if defined(MBEDTLS_AES_C)
#if defined(MBEDTLS_SHA512_C) && defined(MBEDTLS_GCM_C)
{ MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384, "TLS-RSA-WITH-AES-256-GCM-SHA384",
MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C && MBEDTLS_GCM_C */
#if defined(MBEDTLS_SHA256_C)
#if defined(MBEDTLS_GCM_C)
{ MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256, "TLS-RSA-WITH-AES-128-GCM-SHA256",
MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_GCM_C */
#if defined(MBEDTLS_CIPHER_MODE_CBC)
{ MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256, "TLS-RSA-WITH-AES-128-CBC-SHA256",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256, "TLS-RSA-WITH-AES-256-CBC-SHA256",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA1_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
{ MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA, "TLS-RSA-WITH-AES-128-CBC-SHA",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA, "TLS-RSA-WITH-AES-256-CBC-SHA",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_CCM_C)
{ MBEDTLS_TLS_RSA_WITH_AES_256_CCM, "TLS-RSA-WITH-AES-256-CCM",
MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_RSA_WITH_AES_256_CCM_8, "TLS-RSA-WITH-AES-256-CCM-8",
MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_SHORT_TAG },
{ MBEDTLS_TLS_RSA_WITH_AES_128_CCM, "TLS-RSA-WITH-AES-128-CCM",
MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_RSA_WITH_AES_128_CCM_8, "TLS-RSA-WITH-AES-128-CCM-8",
MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_SHORT_TAG },
#endif /* MBEDTLS_CCM_C */
#endif /* MBEDTLS_AES_C */
#if defined(MBEDTLS_CAMELLIA_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-RSA-WITH-CAMELLIA-128-CBC-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256, "TLS-RSA-WITH-CAMELLIA-256-CBC-SHA256",
MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA, "TLS-RSA-WITH-CAMELLIA-128-CBC-SHA",
MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA, "TLS-RSA-WITH-CAMELLIA-256-CBC-SHA",
MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-RSA-WITH-CAMELLIA-128-GCM-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-RSA-WITH-CAMELLIA-256-GCM-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_CAMELLIA_C */
#if defined(MBEDTLS_DES_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-RSA-WITH-3DES-EDE-CBC-SHA",
MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_ARC4_C)
#if defined(MBEDTLS_MD5_C)
{ MBEDTLS_TLS_RSA_WITH_RC4_128_MD5, "TLS-RSA-WITH-RC4-128-MD5",
MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_MD5, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_NODTLS },
#endif
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_RSA_WITH_RC4_128_SHA, "TLS-RSA-WITH-RC4-128-SHA",
MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_NODTLS },
#endif
#endif /* MBEDTLS_ARC4_C */
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED)
#if defined(MBEDTLS_AES_C)
#if defined(MBEDTLS_SHA1_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
{ MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA, "TLS-ECDH-RSA-WITH-AES-128-CBC-SHA",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA, "TLS-ECDH-RSA-WITH-AES-256-CBC-SHA",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
{ MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256, "TLS-ECDH-RSA-WITH-AES-128-CBC-SHA256",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
{ MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256, "TLS-ECDH-RSA-WITH-AES-128-GCM-SHA256",
MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
{ MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384, "TLS-ECDH-RSA-WITH-AES-256-CBC-SHA384",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
{ MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384, "TLS-ECDH-RSA-WITH-AES-256-GCM-SHA384",
MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_AES_C */
#if defined(MBEDTLS_CAMELLIA_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDH-RSA-WITH-CAMELLIA-128-CBC-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDH-RSA-WITH-CAMELLIA-256-CBC-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDH-RSA-WITH-CAMELLIA-128-GCM-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDH-RSA-WITH-CAMELLIA-256-GCM-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_CAMELLIA_C */
#if defined(MBEDTLS_DES_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDH-RSA-WITH-3DES-EDE-CBC-SHA",
MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_ARC4_C)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA, "TLS-ECDH-RSA-WITH-RC4-128-SHA",
MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_NODTLS },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_ARC4_C */
#if defined(MBEDTLS_CIPHER_NULL_CIPHER)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA, "TLS-ECDH-RSA-WITH-NULL-SHA",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_NULL_CIPHER */
#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
#if defined(MBEDTLS_AES_C)
#if defined(MBEDTLS_SHA1_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA, "TLS-ECDH-ECDSA-WITH-AES-128-CBC-SHA",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA, "TLS-ECDH-ECDSA-WITH-AES-256-CBC-SHA",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256, "TLS-ECDH-ECDSA-WITH-AES-128-CBC-SHA256",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256, "TLS-ECDH-ECDSA-WITH-AES-128-GCM-SHA256",
MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384, "TLS-ECDH-ECDSA-WITH-AES-256-CBC-SHA384",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384, "TLS-ECDH-ECDSA-WITH-AES-256-GCM-SHA384",
MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_AES_C */
#if defined(MBEDTLS_CAMELLIA_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDH-ECDSA-WITH-CAMELLIA-128-CBC-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDH-ECDSA-WITH-CAMELLIA-256-CBC-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256, "TLS-ECDH-ECDSA-WITH-CAMELLIA-128-GCM-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384, "TLS-ECDH-ECDSA-WITH-CAMELLIA-256-GCM-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_CAMELLIA_C */
#if defined(MBEDTLS_DES_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA, "TLS-ECDH-ECDSA-WITH-3DES-EDE-CBC-SHA",
MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_ARC4_C)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA, "TLS-ECDH-ECDSA-WITH-RC4-128-SHA",
MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_NODTLS },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_ARC4_C */
#if defined(MBEDTLS_CIPHER_NULL_CIPHER)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA, "TLS-ECDH-ECDSA-WITH-NULL-SHA",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_NULL_CIPHER */
#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
#if defined(MBEDTLS_AES_C)
#if defined(MBEDTLS_GCM_C)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256, "TLS-PSK-WITH-AES-128-GCM-SHA256",
MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384, "TLS-PSK-WITH-AES-256-GCM-SHA384",
MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_GCM_C */
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256, "TLS-PSK-WITH-AES-128-CBC-SHA256",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384, "TLS-PSK-WITH-AES-256-CBC-SHA384",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA, "TLS-PSK-WITH-AES-128-CBC-SHA",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA, "TLS-PSK-WITH-AES-256-CBC-SHA",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_CCM_C)
{ MBEDTLS_TLS_PSK_WITH_AES_256_CCM, "TLS-PSK-WITH-AES-256-CCM",
MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8, "TLS-PSK-WITH-AES-256-CCM-8",
MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_SHORT_TAG },
{ MBEDTLS_TLS_PSK_WITH_AES_128_CCM, "TLS-PSK-WITH-AES-128-CCM",
MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8, "TLS-PSK-WITH-AES-128-CCM-8",
MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_SHORT_TAG },
#endif /* MBEDTLS_CCM_C */
#endif /* MBEDTLS_AES_C */
#if defined(MBEDTLS_CAMELLIA_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-PSK-WITH-CAMELLIA-128-CBC-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-PSK-WITH-CAMELLIA-256-CBC-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256, "TLS-PSK-WITH-CAMELLIA-128-GCM-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384, "TLS-PSK-WITH-CAMELLIA-256-GCM-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_CAMELLIA_C */
#if defined(MBEDTLS_DES_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-PSK-WITH-3DES-EDE-CBC-SHA",
MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_ARC4_C)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_PSK_WITH_RC4_128_SHA, "TLS-PSK-WITH-RC4-128-SHA",
MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_NODTLS },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_ARC4_C */
#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
#if defined(MBEDTLS_AES_C)
#if defined(MBEDTLS_GCM_C)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256, "TLS-DHE-PSK-WITH-AES-128-GCM-SHA256",
MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384, "TLS-DHE-PSK-WITH-AES-256-GCM-SHA384",
MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_GCM_C */
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256, "TLS-DHE-PSK-WITH-AES-128-CBC-SHA256",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384, "TLS-DHE-PSK-WITH-AES-256-CBC-SHA384",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA, "TLS-DHE-PSK-WITH-AES-128-CBC-SHA",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA, "TLS-DHE-PSK-WITH-AES-256-CBC-SHA",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_CCM_C)
{ MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM, "TLS-DHE-PSK-WITH-AES-256-CCM",
MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CCM_8, "TLS-DHE-PSK-WITH-AES-256-CCM-8",
MBEDTLS_CIPHER_AES_256_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_SHORT_TAG },
{ MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM, "TLS-DHE-PSK-WITH-AES-128-CCM",
MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CCM_8, "TLS-DHE-PSK-WITH-AES-128-CCM-8",
MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_SHORT_TAG },
#endif /* MBEDTLS_CCM_C */
#endif /* MBEDTLS_AES_C */
#if defined(MBEDTLS_CAMELLIA_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-DHE-PSK-WITH-CAMELLIA-128-CBC-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-DHE-PSK-WITH-CAMELLIA-256-CBC-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256, "TLS-DHE-PSK-WITH-CAMELLIA-128-GCM-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384, "TLS-DHE-PSK-WITH-CAMELLIA-256-GCM-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_CAMELLIA_C */
#if defined(MBEDTLS_DES_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-DHE-PSK-WITH-3DES-EDE-CBC-SHA",
MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_ARC4_C)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA, "TLS-DHE-PSK-WITH-RC4-128-SHA",
MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_NODTLS },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_ARC4_C */
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(MBEDTLS_AES_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256, "TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA256",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384, "TLS-ECDHE-PSK-WITH-AES-256-CBC-SHA384",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA, "TLS-ECDHE-PSK-WITH-AES-128-CBC-SHA",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA, "TLS-ECDHE-PSK-WITH-AES-256-CBC-SHA",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_AES_C */
#if defined(MBEDTLS_CAMELLIA_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-ECDHE-PSK-WITH-CAMELLIA-128-CBC-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-ECDHE-PSK-WITH-CAMELLIA-256-CBC-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_CAMELLIA_C */
#if defined(MBEDTLS_DES_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-ECDHE-PSK-WITH-3DES-EDE-CBC-SHA",
MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_ARC4_C)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA, "TLS-ECDHE-PSK-WITH-RC4-128-SHA",
MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_NODTLS },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_ARC4_C */
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
#if defined(MBEDTLS_AES_C)
#if defined(MBEDTLS_GCM_C)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256, "TLS-RSA-PSK-WITH-AES-128-GCM-SHA256",
MBEDTLS_CIPHER_AES_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384, "TLS-RSA-PSK-WITH-AES-256-GCM-SHA384",
MBEDTLS_CIPHER_AES_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_GCM_C */
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256, "TLS-RSA-PSK-WITH-AES-128-CBC-SHA256",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384, "TLS-RSA-PSK-WITH-AES-256-CBC-SHA384",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA, "TLS-RSA-PSK-WITH-AES-128-CBC-SHA",
MBEDTLS_CIPHER_AES_128_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
{ MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA, "TLS-RSA-PSK-WITH-AES-256-CBC-SHA",
MBEDTLS_CIPHER_AES_256_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_AES_C */
#if defined(MBEDTLS_CAMELLIA_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256, "TLS-RSA-PSK-WITH-CAMELLIA-128-CBC-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384, "TLS-RSA-PSK-WITH-CAMELLIA-256-CBC-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_GCM_C)
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256, "TLS-RSA-PSK-WITH-CAMELLIA-128-GCM-SHA256",
MBEDTLS_CIPHER_CAMELLIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384, "TLS-RSA-PSK-WITH-CAMELLIA-256-GCM-SHA384",
MBEDTLS_CIPHER_CAMELLIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_GCM_C */
#endif /* MBEDTLS_CAMELLIA_C */
#if defined(MBEDTLS_DES_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA, "TLS-RSA-PSK-WITH-3DES-EDE-CBC-SHA",
MBEDTLS_CIPHER_DES_EDE3_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_ARC4_C)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA, "TLS-RSA-PSK-WITH-RC4-128-SHA",
MBEDTLS_CIPHER_ARC4_128, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_NODTLS },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_ARC4_C */
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
#if defined(MBEDTLS_AES_C)
#if defined(MBEDTLS_CCM_C)
{ MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8, "TLS-ECJPAKE-WITH-AES-128-CCM-8",
MBEDTLS_CIPHER_AES_128_CCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECJPAKE,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_SHORT_TAG },
#endif /* MBEDTLS_CCM_C */
#endif /* MBEDTLS_AES_C */
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_ENABLE_WEAK_CIPHERSUITES)
#if defined(MBEDTLS_CIPHER_NULL_CIPHER)
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
#if defined(MBEDTLS_MD5_C)
{ MBEDTLS_TLS_RSA_WITH_NULL_MD5, "TLS-RSA-WITH-NULL-MD5",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_MD5, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_RSA_WITH_NULL_SHA, "TLS-RSA-WITH-NULL-SHA",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_RSA_WITH_NULL_SHA256, "TLS-RSA-WITH-NULL-SHA256",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_PSK_WITH_NULL_SHA, "TLS-PSK-WITH-NULL-SHA",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_PSK_WITH_NULL_SHA256, "TLS-PSK-WITH-NULL-SHA256",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_PSK_WITH_NULL_SHA384, "TLS-PSK-WITH-NULL-SHA384",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif
#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA, "TLS-DHE-PSK-WITH-NULL-SHA",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256, "TLS-DHE-PSK-WITH-NULL-SHA256",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384, "TLS-DHE-PSK-WITH-NULL-SHA384",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA, "TLS-ECDHE-PSK-WITH-NULL-SHA",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256, "TLS-ECDHE-PSK-WITH-NULL-SHA256",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384, "TLS-ECDHE-PSK-WITH-NULL-SHA384",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA, "TLS-RSA-PSK-WITH-NULL-SHA",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
{ MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256, "TLS-RSA-PSK-WITH-NULL-SHA256",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif
#if defined(MBEDTLS_SHA512_C)
{ MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384, "TLS-RSA-PSK-WITH-NULL-SHA384",
MBEDTLS_CIPHER_NULL, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_1,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
#endif /* MBEDTLS_CIPHER_NULL_CIPHER */
#if defined(MBEDTLS_DES_C)
#if defined(MBEDTLS_CIPHER_MODE_CBC)
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA, "TLS-DHE-RSA-WITH-DES-CBC-SHA",
MBEDTLS_CIPHER_DES_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
#if defined(MBEDTLS_SHA1_C)
{ MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA, "TLS-RSA-WITH-DES-CBC-SHA",
MBEDTLS_CIPHER_DES_CBC, MBEDTLS_MD_SHA1, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_0,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_CIPHERSUITE_WEAK },
#endif /* MBEDTLS_SHA1_C */
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* MBEDTLS_DES_C */
#endif /* MBEDTLS_ENABLE_WEAK_CIPHERSUITES */
#if defined(MBEDTLS_ARIA_C)
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384,
"TLS-RSA-WITH-ARIA-256-GCM-SHA384",
MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384,
"TLS-RSA-WITH-ARIA-256-CBC-SHA384",
MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256,
"TLS-RSA-WITH-ARIA-128-GCM-SHA256",
MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256,
"TLS-RSA-WITH-ARIA-128-CBC-SHA256",
MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384,
"TLS-RSA-PSK-WITH-ARIA-256-GCM-SHA384",
MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384,
"TLS-RSA-PSK-WITH-ARIA-256-CBC-SHA384",
MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256,
"TLS-RSA-PSK-WITH-ARIA-128-GCM-SHA256",
MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256,
"TLS-RSA-PSK-WITH-ARIA-128-CBC-SHA256",
MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_RSA_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384,
"TLS-PSK-WITH-ARIA-256-GCM-SHA384",
MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384,MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384,
"TLS-PSK-WITH-ARIA-256-CBC-SHA384",
MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256,
"TLS-PSK-WITH-ARIA-128-GCM-SHA256",
MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256,
"TLS-PSK-WITH-ARIA-128-CBC-SHA256",
MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED)
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384,
"TLS-ECDH-RSA-WITH-ARIA-256-GCM-SHA384",
MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384,
"TLS-ECDH-RSA-WITH-ARIA-256-CBC-SHA384",
MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256,
"TLS-ECDH-RSA-WITH-ARIA-128-GCM-SHA256",
MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256,
"TLS-ECDH-RSA-WITH-ARIA-128-CBC-SHA256",
MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384,
"TLS-ECDHE-RSA-WITH-ARIA-256-GCM-SHA384",
MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384,
"TLS-ECDHE-RSA-WITH-ARIA-256-CBC-SHA384",
MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256,
"TLS-ECDHE-RSA-WITH-ARIA-128-GCM-SHA256",
MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256,
"TLS-ECDHE-RSA-WITH-ARIA-128-CBC-SHA256",
MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384,
"TLS-ECDHE-PSK-WITH-ARIA-256-CBC-SHA384",
MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256,
"TLS-ECDHE-PSK-WITH-ARIA-128-CBC-SHA256",
MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384,
"TLS-ECDHE-ECDSA-WITH-ARIA-256-GCM-SHA384",
MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384,
"TLS-ECDHE-ECDSA-WITH-ARIA-256-CBC-SHA384",
MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256,
"TLS-ECDHE-ECDSA-WITH-ARIA-128-GCM-SHA256",
MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256,
"TLS-ECDHE-ECDSA-WITH-ARIA-128-CBC-SHA256",
MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384,
"TLS-ECDH-ECDSA-WITH-ARIA-256-GCM-SHA384",
MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384,
"TLS-ECDH-ECDSA-WITH-ARIA-256-CBC-SHA384",
MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256,
"TLS-ECDH-ECDSA-WITH-ARIA-128-GCM-SHA256",
MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256,
"TLS-ECDH-ECDSA-WITH-ARIA-128-CBC-SHA256",
MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384,
"TLS-DHE-RSA-WITH-ARIA-256-GCM-SHA384",
MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384,
"TLS-DHE-RSA-WITH-ARIA-256-CBC-SHA384",
MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256,
"TLS-DHE-RSA-WITH-ARIA-128-GCM-SHA256",
MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256,
"TLS-DHE-RSA-WITH-ARIA-128-CBC-SHA256",
MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_RSA,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384,
"TLS-DHE-PSK-WITH-ARIA-256-GCM-SHA384",
MBEDTLS_CIPHER_ARIA_256_GCM, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA512_C))
{ MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384,
"TLS-DHE-PSK-WITH-ARIA-256-CBC-SHA384",
MBEDTLS_CIPHER_ARIA_256_CBC, MBEDTLS_MD_SHA384, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_GCM_C) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256,
"TLS-DHE-PSK-WITH-ARIA-128-GCM-SHA256",
MBEDTLS_CIPHER_ARIA_128_GCM, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#if (defined(MBEDTLS_CIPHER_MODE_CBC) && defined(MBEDTLS_SHA256_C))
{ MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256,
"TLS-DHE-PSK-WITH-ARIA-128-CBC-SHA256",
MBEDTLS_CIPHER_ARIA_128_CBC, MBEDTLS_MD_SHA256, MBEDTLS_KEY_EXCHANGE_DHE_PSK,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
MBEDTLS_SSL_MAJOR_VERSION_3, MBEDTLS_SSL_MINOR_VERSION_3,
0 },
#endif
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
#endif /* MBEDTLS_ARIA_C */
{ 0, "",
MBEDTLS_CIPHER_NONE, MBEDTLS_MD_NONE, MBEDTLS_KEY_EXCHANGE_NONE,
0, 0, 0, 0, 0 }
};
#if defined(MBEDTLS_SSL_CIPHERSUITES)
const int *mbedtls_ssl_list_ciphersuites( void )
{
return( ciphersuite_preference );
}
#else
#define MAX_CIPHERSUITES sizeof( ciphersuite_definitions ) / \
sizeof( ciphersuite_definitions[0] )
static int supported_ciphersuites[MAX_CIPHERSUITES];
static int supported_init = 0;
const int *mbedtls_ssl_list_ciphersuites( void )
{
/*
* On initial call filter out all ciphersuites not supported by current
* build based on presence in the ciphersuite_definitions.
*/
if( supported_init == 0 )
{
const int *p;
int *q;
for( p = ciphersuite_preference, q = supported_ciphersuites;
*p != 0 && q < supported_ciphersuites + MAX_CIPHERSUITES - 1;
p++ )
{
#if defined(MBEDTLS_REMOVE_ARC4_CIPHERSUITES)
const mbedtls_ssl_ciphersuite_t *cs_info;
if( ( cs_info = mbedtls_ssl_ciphersuite_from_id( *p ) ) != NULL &&
cs_info->cipher != MBEDTLS_CIPHER_ARC4_128 )
#else
if( mbedtls_ssl_ciphersuite_from_id( *p ) != NULL )
#endif
*(q++) = *p;
}
*q = 0;
supported_init = 1;
}
return( supported_ciphersuites );
}
#endif /* MBEDTLS_SSL_CIPHERSUITES */
const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_string(
const char *ciphersuite_name )
{
const mbedtls_ssl_ciphersuite_t *cur = ciphersuite_definitions;
if( NULL == ciphersuite_name )
return( NULL );
while( cur->id != 0 )
{
if( 0 == strcmp( cur->name, ciphersuite_name ) )
return( cur );
cur++;
}
return( NULL );
}
const mbedtls_ssl_ciphersuite_t *mbedtls_ssl_ciphersuite_from_id( int ciphersuite )
{
const mbedtls_ssl_ciphersuite_t *cur = ciphersuite_definitions;
while( cur->id != 0 )
{
if( cur->id == ciphersuite )
return( cur );
cur++;
}
return( NULL );
}
const char *mbedtls_ssl_get_ciphersuite_name( const int ciphersuite_id )
{
const mbedtls_ssl_ciphersuite_t *cur;
cur = mbedtls_ssl_ciphersuite_from_id( ciphersuite_id );
if( cur == NULL )
return( "unknown" );
return( cur->name );
}
int mbedtls_ssl_get_ciphersuite_id( const char *ciphersuite_name )
{
const mbedtls_ssl_ciphersuite_t *cur;
cur = mbedtls_ssl_ciphersuite_from_string( ciphersuite_name );
if( cur == NULL )
return( 0 );
return( cur->id );
}
#if defined(MBEDTLS_PK_C)
mbedtls_pk_type_t mbedtls_ssl_get_ciphersuite_sig_pk_alg( const mbedtls_ssl_ciphersuite_t *info )
{
switch( info->key_exchange )
{
case MBEDTLS_KEY_EXCHANGE_RSA:
case MBEDTLS_KEY_EXCHANGE_DHE_RSA:
case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA:
case MBEDTLS_KEY_EXCHANGE_RSA_PSK:
return( MBEDTLS_PK_RSA );
case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA:
return( MBEDTLS_PK_ECDSA );
case MBEDTLS_KEY_EXCHANGE_ECDH_RSA:
case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA:
return( MBEDTLS_PK_ECKEY );
default:
return( MBEDTLS_PK_NONE );
}
}
mbedtls_pk_type_t mbedtls_ssl_get_ciphersuite_sig_alg( const mbedtls_ssl_ciphersuite_t *info )
{
switch( info->key_exchange )
{
case MBEDTLS_KEY_EXCHANGE_RSA:
case MBEDTLS_KEY_EXCHANGE_DHE_RSA:
case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA:
return( MBEDTLS_PK_RSA );
case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA:
return( MBEDTLS_PK_ECDSA );
default:
return( MBEDTLS_PK_NONE );
}
}
#endif /* MBEDTLS_PK_C */
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
int mbedtls_ssl_ciphersuite_uses_ec( const mbedtls_ssl_ciphersuite_t *info )
{
if (info == NULL) {
return (0);
}
switch( info->key_exchange )
{
case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA:
case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA:
case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK:
case MBEDTLS_KEY_EXCHANGE_ECDH_RSA:
case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA:
case MBEDTLS_KEY_EXCHANGE_ECJPAKE:
return( 1 );
default:
return( 0 );
}
}
#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED*/
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
int mbedtls_ssl_ciphersuite_uses_psk( const mbedtls_ssl_ciphersuite_t *info )
{
switch( info->key_exchange )
{
case MBEDTLS_KEY_EXCHANGE_PSK:
case MBEDTLS_KEY_EXCHANGE_RSA_PSK:
case MBEDTLS_KEY_EXCHANGE_DHE_PSK:
case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK:
return( 1 );
default:
return( 0 );
}
}
#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
#endif /* MBEDTLS_SSL_TLS_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/ssl_ciphersuites.c | C | apache-2.0 | 103,754 |
/*
* SSLv3/TLSv1 client-side functions
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_SSL_CLI_C)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#include "mbedtls/debug.h"
#include "mbedtls/ssl.h"
#include "mbedtls/ssl_internal.h"
#include <string.h>
#include <stdint.h>
#if defined(MBEDTLS_HAVE_TIME)
#include "mbedtls/platform_time.h"
#endif
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
#include "mbedtls/platform_util.h"
#endif
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
static void ssl_write_hostname_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
unsigned char *p = buf;
const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
size_t hostname_len;
*olen = 0;
if( ssl->hostname == NULL )
return;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding server name extension: %s",
ssl->hostname ) );
hostname_len = strlen( ssl->hostname );
if( end < p || (size_t)( end - p ) < hostname_len + 9 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
return;
}
/*
* Sect. 3, RFC 6066 (TLS Extensions Definitions)
*
* In order to provide any of the server names, clients MAY include an
* extension of type "server_name" in the (extended) client hello. The
* "extension_data" field of this extension SHALL contain
* "ServerNameList" where:
*
* struct {
* NameType name_type;
* select (name_type) {
* case host_name: HostName;
* } name;
* } ServerName;
*
* enum {
* host_name(0), (255)
* } NameType;
*
* opaque HostName<1..2^16-1>;
*
* struct {
* ServerName server_name_list<1..2^16-1>
* } ServerNameList;
*
*/
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SERVERNAME >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SERVERNAME ) & 0xFF );
*p++ = (unsigned char)( ( (hostname_len + 5) >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( (hostname_len + 5) ) & 0xFF );
*p++ = (unsigned char)( ( (hostname_len + 3) >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( (hostname_len + 3) ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SERVERNAME_HOSTNAME ) & 0xFF );
*p++ = (unsigned char)( ( hostname_len >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( hostname_len ) & 0xFF );
memcpy( p, ssl->hostname, hostname_len );
*olen = hostname_len + 9;
}
#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
#if defined(MBEDTLS_SSL_RENEGOTIATION)
static void ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
unsigned char *p = buf;
const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
*olen = 0;
/* We're always including an TLS_EMPTY_RENEGOTIATION_INFO_SCSV in the
* initial ClientHello, in which case also adding the renegotiation
* info extension is NOT RECOMMENDED as per RFC 5746 Section 3.4. */
if( ssl->renego_status != MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
return;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding renegotiation extension" ) );
if( end < p || (size_t)( end - p ) < 5 + ssl->verify_data_len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
return;
}
/*
* Secure renegotiation
*/
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO ) & 0xFF );
*p++ = 0x00;
*p++ = ( ssl->verify_data_len + 1 ) & 0xFF;
*p++ = ssl->verify_data_len & 0xFF;
memcpy( p, ssl->own_verify_data, ssl->verify_data_len );
*olen = 5 + ssl->verify_data_len;
}
#endif /* MBEDTLS_SSL_RENEGOTIATION */
/*
* Only if we handle at least one key exchange that needs signatures.
*/
#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
static void ssl_write_signature_algorithms_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
unsigned char *p = buf;
const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
size_t sig_alg_len = 0;
const int *md;
#if defined(MBEDTLS_RSA_C) || defined(MBEDTLS_ECDSA_C)
unsigned char *sig_alg_list = buf + 6;
#endif
*olen = 0;
if( ssl->conf->max_minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 )
return;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding signature_algorithms extension" ) );
for( md = ssl->conf->sig_hashes; *md != MBEDTLS_MD_NONE; md++ )
{
#if defined(MBEDTLS_ECDSA_C)
sig_alg_len += 2;
#endif
#if defined(MBEDTLS_RSA_C)
sig_alg_len += 2;
#endif
}
if( end < p || (size_t)( end - p ) < sig_alg_len + 6 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
return;
}
/*
* Prepare signature_algorithms extension (TLS 1.2)
*/
sig_alg_len = 0;
for( md = ssl->conf->sig_hashes; *md != MBEDTLS_MD_NONE; md++ )
{
#if defined(MBEDTLS_ECDSA_C)
sig_alg_list[sig_alg_len++] = mbedtls_ssl_hash_from_md_alg( *md );
sig_alg_list[sig_alg_len++] = MBEDTLS_SSL_SIG_ECDSA;
#endif
#if defined(MBEDTLS_RSA_C)
sig_alg_list[sig_alg_len++] = mbedtls_ssl_hash_from_md_alg( *md );
sig_alg_list[sig_alg_len++] = MBEDTLS_SSL_SIG_RSA;
#endif
}
/*
* enum {
* none(0), md5(1), sha1(2), sha224(3), sha256(4), sha384(5),
* sha512(6), (255)
* } HashAlgorithm;
*
* enum { anonymous(0), rsa(1), dsa(2), ecdsa(3), (255) }
* SignatureAlgorithm;
*
* struct {
* HashAlgorithm hash;
* SignatureAlgorithm signature;
* } SignatureAndHashAlgorithm;
*
* SignatureAndHashAlgorithm
* supported_signature_algorithms<2..2^16-2>;
*/
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SIG_ALG >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SIG_ALG ) & 0xFF );
*p++ = (unsigned char)( ( ( sig_alg_len + 2 ) >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( ( sig_alg_len + 2 ) ) & 0xFF );
*p++ = (unsigned char)( ( sig_alg_len >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( sig_alg_len ) & 0xFF );
*olen = 6 + sig_alg_len;
}
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 &&
MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
static void ssl_write_supported_elliptic_curves_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
unsigned char *p = buf;
const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
unsigned char *elliptic_curve_list = p + 6;
size_t elliptic_curve_len = 0;
const mbedtls_ecp_curve_info *info;
#if defined(MBEDTLS_ECP_C)
const mbedtls_ecp_group_id *grp_id;
#else
((void) ssl);
#endif
*olen = 0;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding supported_elliptic_curves extension" ) );
#if defined(MBEDTLS_ECP_C)
for( grp_id = ssl->conf->curve_list; *grp_id != MBEDTLS_ECP_DP_NONE; grp_id++ )
#else
for( info = mbedtls_ecp_curve_list(); info->grp_id != MBEDTLS_ECP_DP_NONE; info++ )
#endif
{
#if defined(MBEDTLS_ECP_C)
info = mbedtls_ecp_curve_info_from_grp_id( *grp_id );
#endif
if( info == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid curve in ssl configuration" ) );
return;
}
elliptic_curve_len += 2;
}
if( end < p || (size_t)( end - p ) < 6 + elliptic_curve_len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
return;
}
elliptic_curve_len = 0;
#if defined(MBEDTLS_ECP_C)
for( grp_id = ssl->conf->curve_list; *grp_id != MBEDTLS_ECP_DP_NONE; grp_id++ )
#else
for( info = mbedtls_ecp_curve_list(); info->grp_id != MBEDTLS_ECP_DP_NONE; info++ )
#endif
{
#if defined(MBEDTLS_ECP_C)
info = mbedtls_ecp_curve_info_from_grp_id( *grp_id );
#endif
if (info != NULL) {
elliptic_curve_list[elliptic_curve_len++] = info->tls_id >> 8;
elliptic_curve_list[elliptic_curve_len++] = info->tls_id & 0xFF;
}
}
if( elliptic_curve_len == 0 )
return;
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES ) & 0xFF );
*p++ = (unsigned char)( ( ( elliptic_curve_len + 2 ) >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( ( elliptic_curve_len + 2 ) ) & 0xFF );
*p++ = (unsigned char)( ( ( elliptic_curve_len ) >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( ( elliptic_curve_len ) ) & 0xFF );
*olen = 6 + elliptic_curve_len;
}
static void ssl_write_supported_point_formats_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
unsigned char *p = buf;
const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
*olen = 0;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding supported_point_formats extension" ) );
if( end < p || (size_t)( end - p ) < 6 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
return;
}
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS ) & 0xFF );
*p++ = 0x00;
*p++ = 2;
*p++ = 1;
*p++ = MBEDTLS_ECP_PF_UNCOMPRESSED;
*olen = 6;
}
#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ||
MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
static void ssl_write_ecjpake_kkpp_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
int ret;
unsigned char *p = buf;
const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
size_t kkpp_len;
*olen = 0;
/* Skip costly extension if we can't use EC J-PAKE anyway */
if( mbedtls_ecjpake_check( &ssl->handshake->ecjpake_ctx ) != 0 )
return;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding ecjpake_kkpp extension" ) );
if( end - p < 4 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
return;
}
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP ) & 0xFF );
/*
* We may need to send ClientHello multiple times for Hello verification.
* We don't want to compute fresh values every time (both for performance
* and consistency reasons), so cache the extension content.
*/
if( ssl->handshake->ecjpake_cache == NULL ||
ssl->handshake->ecjpake_cache_len == 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "generating new ecjpake parameters" ) );
ret = mbedtls_ecjpake_write_round_one( &ssl->handshake->ecjpake_ctx,
p + 2, end - p - 2, &kkpp_len,
ssl->conf->f_rng, ssl->conf->p_rng );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1 , "mbedtls_ecjpake_write_round_one", ret );
return;
}
ssl->handshake->ecjpake_cache = mbedtls_calloc( 1, kkpp_len );
if( ssl->handshake->ecjpake_cache == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "allocation failed" ) );
return;
}
memcpy( ssl->handshake->ecjpake_cache, p + 2, kkpp_len );
ssl->handshake->ecjpake_cache_len = kkpp_len;
}
else
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "re-using cached ecjpake parameters" ) );
kkpp_len = ssl->handshake->ecjpake_cache_len;
if( (size_t)( end - p - 2 ) < kkpp_len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
return;
}
memcpy( p + 2, ssl->handshake->ecjpake_cache, kkpp_len );
}
*p++ = (unsigned char)( ( kkpp_len >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( kkpp_len ) & 0xFF );
*olen = kkpp_len + 4;
}
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
static void ssl_write_max_fragment_length_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
unsigned char *p = buf;
const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
*olen = 0;
if( ssl->conf->mfl_code == MBEDTLS_SSL_MAX_FRAG_LEN_NONE ) {
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding max_fragment_length extension" ) );
if( end < p || (size_t)( end - p ) < 5 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
return;
}
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH ) & 0xFF );
*p++ = 0x00;
*p++ = 1;
*p++ = ssl->conf->mfl_code;
*olen = 5;
}
#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
static void ssl_write_truncated_hmac_ext( mbedtls_ssl_context *ssl,
unsigned char *buf, size_t *olen )
{
unsigned char *p = buf;
const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
*olen = 0;
if( ssl->conf->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_DISABLED )
{
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding truncated_hmac extension" ) );
if( end < p || (size_t)( end - p ) < 4 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
return;
}
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC ) & 0xFF );
*p++ = 0x00;
*p++ = 0x00;
*olen = 4;
}
#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
static void ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
unsigned char *buf, size_t *olen )
{
unsigned char *p = buf;
const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
*olen = 0;
if( ssl->conf->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED ||
ssl->conf->max_minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
{
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding encrypt_then_mac "
"extension" ) );
if( end < p || (size_t)( end - p ) < 4 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
return;
}
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC ) & 0xFF );
*p++ = 0x00;
*p++ = 0x00;
*olen = 4;
}
#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
static void ssl_write_extended_ms_ext( mbedtls_ssl_context *ssl,
unsigned char *buf, size_t *olen )
{
unsigned char *p = buf;
const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
*olen = 0;
if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED ||
ssl->conf->max_minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
{
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding extended_master_secret "
"extension" ) );
if( end < p || (size_t)( end - p ) < 4 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
return;
}
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET ) & 0xFF );
*p++ = 0x00;
*p++ = 0x00;
*olen = 4;
}
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
static void ssl_write_session_ticket_ext( mbedtls_ssl_context *ssl,
unsigned char *buf, size_t *olen )
{
unsigned char *p = buf;
const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
size_t tlen = ssl->session_negotiate->ticket_len;
*olen = 0;
if( ssl->conf->session_tickets == MBEDTLS_SSL_SESSION_TICKETS_DISABLED )
{
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding session ticket extension" ) );
if( end < p || (size_t)( end - p ) < 4 + tlen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
return;
}
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET ) & 0xFF );
*p++ = (unsigned char)( ( tlen >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( tlen ) & 0xFF );
*olen = 4;
if( ssl->session_negotiate->ticket == NULL || tlen == 0 )
{
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "sending session ticket of length %d", tlen ) );
memcpy( p, ssl->session_negotiate->ticket, tlen );
*olen += tlen;
}
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
#if defined(MBEDTLS_SSL_ALPN)
static void ssl_write_alpn_ext( mbedtls_ssl_context *ssl,
unsigned char *buf, size_t *olen )
{
unsigned char *p = buf;
const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
size_t alpnlen = 0;
const char **cur;
*olen = 0;
if( ssl->conf->alpn_list == NULL )
{
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, adding alpn extension" ) );
for( cur = ssl->conf->alpn_list; *cur != NULL; cur++ )
alpnlen += (unsigned char)( strlen( *cur ) & 0xFF ) + 1;
if( end < p || (size_t)( end - p ) < 6 + alpnlen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
return;
}
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN ) & 0xFF );
/*
* opaque ProtocolName<1..2^8-1>;
*
* struct {
* ProtocolName protocol_name_list<2..2^16-1>
* } ProtocolNameList;
*/
/* Skip writing extension and list length for now */
p += 4;
for( cur = ssl->conf->alpn_list; *cur != NULL; cur++ )
{
*p = (unsigned char)( strlen( *cur ) & 0xFF );
memcpy( p + 1, *cur, *p );
p += 1 + *p;
}
*olen = p - buf;
/* List length = olen - 2 (ext_type) - 2 (ext_len) - 2 (list_len) */
buf[4] = (unsigned char)( ( ( *olen - 6 ) >> 8 ) & 0xFF );
buf[5] = (unsigned char)( ( ( *olen - 6 ) ) & 0xFF );
/* Extension length = olen - 2 (ext_type) - 2 (ext_len) */
buf[2] = (unsigned char)( ( ( *olen - 4 ) >> 8 ) & 0xFF );
buf[3] = (unsigned char)( ( ( *olen - 4 ) ) & 0xFF );
}
#endif /* MBEDTLS_SSL_ALPN */
/*
* Generate random bytes for ClientHello
*/
static int ssl_generate_random( mbedtls_ssl_context *ssl )
{
int ret;
unsigned char *p = ssl->handshake->randbytes;
#if defined(MBEDTLS_HAVE_TIME)
mbedtls_time_t t;
#endif
/*
* When responding to a verify request, MUST reuse random (RFC 6347 4.2.1)
*/
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
ssl->handshake->verify_cookie != NULL )
{
return( 0 );
}
#endif
#if defined(MBEDTLS_HAVE_TIME)
t = mbedtls_time( NULL );
*p++ = (unsigned char)( t >> 24 );
*p++ = (unsigned char)( t >> 16 );
*p++ = (unsigned char)( t >> 8 );
*p++ = (unsigned char)( t );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, current time: %lu", t ) );
#else
if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 4 ) ) != 0 )
return( ret );
p += 4;
#endif /* MBEDTLS_HAVE_TIME */
if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 28 ) ) != 0 )
return( ret );
return( 0 );
}
/**
* \brief Validate cipher suite against config in SSL context.
*
* \param suite_info cipher suite to validate
* \param ssl SSL context
* \param min_minor_ver Minimal minor version to accept a cipher suite
* \param max_minor_ver Maximal minor version to accept a cipher suite
*
* \return 0 if valid, else 1
*/
static int ssl_validate_ciphersuite( const mbedtls_ssl_ciphersuite_t * suite_info,
const mbedtls_ssl_context * ssl,
int min_minor_ver, int max_minor_ver )
{
(void) ssl;
if( suite_info == NULL )
return( 1 );
if( suite_info->min_minor_ver > max_minor_ver ||
suite_info->max_minor_ver < min_minor_ver )
return( 1 );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
( suite_info->flags & MBEDTLS_CIPHERSUITE_NODTLS ) )
return( 1 );
#endif
#if defined(MBEDTLS_ARC4_C)
if( ssl->conf->arc4_disabled == MBEDTLS_SSL_ARC4_DISABLED &&
suite_info->cipher == MBEDTLS_CIPHER_ARC4_128 )
return( 1 );
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
if( suite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE &&
mbedtls_ecjpake_check( &ssl->handshake->ecjpake_ctx ) != 0 )
return( 1 );
#endif
return( 0 );
}
static int ssl_write_client_hello( mbedtls_ssl_context *ssl )
{
int ret;
size_t i, n, olen, ext_len = 0;
unsigned char *buf;
unsigned char *p, *q;
unsigned char offer_compress;
const int *ciphersuites;
const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
int uses_ec = 0;
#endif
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write client hello" ) );
if( ssl->conf->f_rng == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "no RNG provided") );
return( MBEDTLS_ERR_SSL_NO_RNG );
}
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE )
#endif
{
ssl->major_ver = ssl->conf->min_major_ver;
ssl->minor_ver = ssl->conf->min_minor_ver;
}
if( ssl->conf->max_major_ver == 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "configured max major version is invalid, "
"consider using mbedtls_ssl_config_defaults()" ) );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
/*
* 0 . 0 handshake type
* 1 . 3 handshake length
* 4 . 5 highest version supported
* 6 . 9 current UNIX time
* 10 . 37 random bytes
*/
buf = ssl->out_msg;
p = buf + 4;
mbedtls_ssl_write_version( ssl->conf->max_major_ver, ssl->conf->max_minor_ver,
ssl->conf->transport, p );
p += 2;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, max version: [%d:%d]",
buf[4], buf[5] ) );
if( ( ret = ssl_generate_random( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_generate_random", ret );
return( ret );
}
memcpy( p, ssl->handshake->randbytes, 32 );
MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, random bytes", p, 32 );
p += 32;
/*
* 38 . 38 session id length
* 39 . 39+n session id
* 39+n . 39+n DTLS only: cookie length (1 byte)
* 40+n . .. DTSL only: cookie
* .. . .. ciphersuitelist length (2 bytes)
* .. . .. ciphersuitelist
* .. . .. compression methods length (1 byte)
* .. . .. compression methods
* .. . .. extensions length (2 bytes)
* .. . .. extensions
*/
n = ssl->session_negotiate->id_len;
if( n < 16 || n > 32 ||
#if defined(MBEDTLS_SSL_RENEGOTIATION)
ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ||
#endif
ssl->handshake->resume == 0 )
{
n = 0;
}
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
/*
* RFC 5077 section 3.4: "When presenting a ticket, the client MAY
* generate and include a Session ID in the TLS ClientHello."
*/
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE )
#endif
{
if( ssl->session_negotiate->ticket != NULL &&
ssl->session_negotiate->ticket_len != 0 )
{
ret = ssl->conf->f_rng( ssl->conf->p_rng, ssl->session_negotiate->id, 32 );
if( ret != 0 )
return( ret );
ssl->session_negotiate->id_len = n = 32;
}
}
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
*p++ = (unsigned char) n;
for( i = 0; i < n; i++ )
*p++ = ssl->session_negotiate->id[i];
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, session id len.: %d", n ) );
MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, session id", buf + 39, n );
/*
* DTLS cookie
*/
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
if( ssl->handshake->verify_cookie == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "no verify cookie to send" ) );
*p++ = 0;
}
else
{
MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, cookie",
ssl->handshake->verify_cookie,
ssl->handshake->verify_cookie_len );
*p++ = ssl->handshake->verify_cookie_len;
memcpy( p, ssl->handshake->verify_cookie,
ssl->handshake->verify_cookie_len );
p += ssl->handshake->verify_cookie_len;
}
}
#endif
/*
* Ciphersuite list
*/
ciphersuites = ssl->conf->ciphersuite_list[ssl->minor_ver];
/* Skip writing ciphersuite length for now */
n = 0;
q = p;
p += 2;
for( i = 0; ciphersuites[i] != 0; i++ )
{
ciphersuite_info = mbedtls_ssl_ciphersuite_from_id( ciphersuites[i] );
if( ssl_validate_ciphersuite( ciphersuite_info, ssl,
ssl->conf->min_minor_ver,
ssl->conf->max_minor_ver ) != 0 )
continue;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, add ciphersuite: %04x",
ciphersuites[i] ) );
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
uses_ec |= mbedtls_ssl_ciphersuite_uses_ec( ciphersuite_info );
#endif
n++;
*p++ = (unsigned char)( ciphersuites[i] >> 8 );
*p++ = (unsigned char)( ciphersuites[i] );
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, got %d ciphersuites (excluding SCSVs)", n ) );
/*
* Add TLS_EMPTY_RENEGOTIATION_INFO_SCSV
*/
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE )
#endif
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "adding EMPTY_RENEGOTIATION_INFO_SCSV" ) );
*p++ = (unsigned char)( MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO >> 8 );
*p++ = (unsigned char)( MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO );
n++;
}
/* Some versions of OpenSSL don't handle it correctly if not at end */
#if defined(MBEDTLS_SSL_FALLBACK_SCSV)
if( ssl->conf->fallback == MBEDTLS_SSL_IS_FALLBACK )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "adding FALLBACK_SCSV" ) );
*p++ = (unsigned char)( MBEDTLS_SSL_FALLBACK_SCSV_VALUE >> 8 );
*p++ = (unsigned char)( MBEDTLS_SSL_FALLBACK_SCSV_VALUE );
n++;
}
#endif
*q++ = (unsigned char)( n >> 7 );
*q++ = (unsigned char)( n << 1 );
#if defined(MBEDTLS_ZLIB_SUPPORT)
offer_compress = 1;
#else
offer_compress = 0;
#endif
/*
* We don't support compression with DTLS right now: if many records come
* in the same datagram, uncompressing one could overwrite the next one.
* We don't want to add complexity for handling that case unless there is
* an actual need for it.
*/
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
offer_compress = 0;
#endif
if( offer_compress )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress len.: %d", 2 ) );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress alg.: %d %d",
MBEDTLS_SSL_COMPRESS_DEFLATE, MBEDTLS_SSL_COMPRESS_NULL ) );
*p++ = 2;
*p++ = MBEDTLS_SSL_COMPRESS_DEFLATE;
*p++ = MBEDTLS_SSL_COMPRESS_NULL;
}
else
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress len.: %d", 1 ) );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, compress alg.: %d",
MBEDTLS_SSL_COMPRESS_NULL ) );
*p++ = 1;
*p++ = MBEDTLS_SSL_COMPRESS_NULL;
}
// First write extensions, then the total length
//
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
ssl_write_hostname_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
/* Note that TLS_EMPTY_RENEGOTIATION_INFO_SCSV is always added
* even if MBEDTLS_SSL_RENEGOTIATION is not defined. */
#if defined(MBEDTLS_SSL_RENEGOTIATION)
ssl_write_renegotiation_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
ssl_write_signature_algorithms_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
if( uses_ec )
{
ssl_write_supported_elliptic_curves_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
ssl_write_supported_point_formats_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
}
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
ssl_write_ecjpake_kkpp_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
ssl_write_max_fragment_length_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
ssl_write_truncated_hmac_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
ssl_write_encrypt_then_mac_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
ssl_write_extended_ms_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
#if defined(MBEDTLS_SSL_ALPN)
ssl_write_alpn_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
ssl_write_session_ticket_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
/* olen unused if all extensions are disabled */
((void) olen);
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello, total extension length: %d",
ext_len ) );
if( ext_len > 0 )
{
*p++ = (unsigned char)( ( ext_len >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( ext_len ) & 0xFF );
p += ext_len;
}
ssl->out_msglen = p - buf;
ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
ssl->out_msg[0] = MBEDTLS_SSL_HS_CLIENT_HELLO;
ssl->state++;
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
mbedtls_ssl_send_flight_completed( ssl );
#endif
if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
return( ret );
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret );
return( ret );
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write client hello" ) );
return( 0 );
}
static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
{
/* Check verify-data in constant-time. The length OTOH is no secret */
if( len != 1 + ssl->verify_data_len * 2 ||
buf[0] != ssl->verify_data_len * 2 ||
mbedtls_ssl_safer_memcmp( buf + 1,
ssl->own_verify_data, ssl->verify_data_len ) != 0 ||
mbedtls_ssl_safer_memcmp( buf + 1 + ssl->verify_data_len,
ssl->peer_verify_data, ssl->verify_data_len ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching renegotiation info" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
}
else
#endif /* MBEDTLS_SSL_RENEGOTIATION */
{
if( len != 1 || buf[0] != 0x00 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-zero length renegotiation info" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION;
}
return( 0 );
}
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
/*
* server should use the extension only if we did,
* and if so the server's value should match ours (and len is always 1)
*/
if( ssl->conf->mfl_code == MBEDTLS_SSL_MAX_FRAG_LEN_NONE ||
len != 1 ||
buf[0] != ssl->conf->mfl_code )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching max fragment length extension" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
return( 0 );
}
#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
if( ssl->conf->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_DISABLED ||
len != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching truncated HMAC extension" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
((void) buf);
ssl->session_negotiate->trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_ENABLED;
return( 0 );
}
#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
if( ssl->conf->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED ||
ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ||
len != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching encrypt-then-MAC extension" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
((void) buf);
ssl->session_negotiate->encrypt_then_mac = MBEDTLS_SSL_ETM_ENABLED;
return( 0 );
}
#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED ||
ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ||
len != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching extended master secret extension" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
((void) buf);
ssl->handshake->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED;
return( 0 );
}
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
if( ssl->conf->session_tickets == MBEDTLS_SSL_SESSION_TICKETS_DISABLED ||
len != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching session ticket extension" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
((void) buf);
ssl->handshake->new_session_ticket = 1;
return( 0 );
}
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
static int ssl_parse_supported_point_formats_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
size_t list_size;
const unsigned char *p;
if( len == 0 || (size_t)( buf[0] + 1 ) != len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
list_size = buf[0];
p = buf + 1;
while( list_size > 0 )
{
if( p[0] == MBEDTLS_ECP_PF_UNCOMPRESSED ||
p[0] == MBEDTLS_ECP_PF_COMPRESSED )
{
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C)
ssl->handshake->ecdh_ctx.point_format = p[0];
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
ssl->handshake->ecjpake_ctx.point_format = p[0];
#endif
MBEDTLS_SSL_DEBUG_MSG( 4, ( "point format selected: %d", p[0] ) );
return( 0 );
}
list_size--;
p++;
}
MBEDTLS_SSL_DEBUG_MSG( 1, ( "no point format in common" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ||
MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
int ret;
if( ssl->transform_negotiate->ciphersuite_info->key_exchange !=
MBEDTLS_KEY_EXCHANGE_ECJPAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip ecjpake kkpp extension" ) );
return( 0 );
}
/* If we got here, we no longer need our cached extension */
mbedtls_free( ssl->handshake->ecjpake_cache );
ssl->handshake->ecjpake_cache = NULL;
ssl->handshake->ecjpake_cache_len = 0;
if( ( ret = mbedtls_ecjpake_read_round_one( &ssl->handshake->ecjpake_ctx,
buf, len ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_one", ret );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( ret );
}
return( 0 );
}
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_SSL_ALPN)
static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf, size_t len )
{
size_t list_len, name_len;
const char **p;
/* If we didn't send it, the server shouldn't send it */
if( ssl->conf->alpn_list == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching ALPN extension" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
/*
* opaque ProtocolName<1..2^8-1>;
*
* struct {
* ProtocolName protocol_name_list<2..2^16-1>
* } ProtocolNameList;
*
* the "ProtocolNameList" MUST contain exactly one "ProtocolName"
*/
/* Min length is 2 (list_len) + 1 (name_len) + 1 (name) */
if( len < 4 )
{
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
list_len = ( buf[0] << 8 ) | buf[1];
if( list_len != len - 2 )
{
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
name_len = buf[2];
if( name_len != list_len - 1 )
{
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
/* Check that the server chosen protocol was in our list and save it */
for( p = ssl->conf->alpn_list; *p != NULL; p++ )
{
if( name_len == strlen( *p ) &&
memcmp( buf + 3, *p, name_len ) == 0 )
{
ssl->alpn_chosen = *p;
return( 0 );
}
}
MBEDTLS_SSL_DEBUG_MSG( 1, ( "ALPN extension: no matching protocol" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
#endif /* MBEDTLS_SSL_ALPN */
/*
* Parse HelloVerifyRequest. Only called after verifying the HS type.
*/
#if defined(MBEDTLS_SSL_PROTO_DTLS)
static int ssl_parse_hello_verify_request( mbedtls_ssl_context *ssl )
{
const unsigned char *p = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl );
int major_ver, minor_ver;
unsigned char cookie_len;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse hello verify request" ) );
/*
* struct {
* ProtocolVersion server_version;
* opaque cookie<0..2^8-1>;
* } HelloVerifyRequest;
*/
MBEDTLS_SSL_DEBUG_BUF( 3, "server version", p, 2 );
mbedtls_ssl_read_version( &major_ver, &minor_ver, ssl->conf->transport, p );
p += 2;
/*
* Since the RFC is not clear on this point, accept DTLS 1.0 (TLS 1.1)
* even is lower than our min version.
*/
if( major_ver < MBEDTLS_SSL_MAJOR_VERSION_3 ||
minor_ver < MBEDTLS_SSL_MINOR_VERSION_2 ||
major_ver > ssl->conf->max_major_ver ||
minor_ver > ssl->conf->max_minor_ver )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server version" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION );
}
cookie_len = *p++;
MBEDTLS_SSL_DEBUG_BUF( 3, "cookie", p, cookie_len );
if( ( ssl->in_msg + ssl->in_msglen ) - p < cookie_len )
{
MBEDTLS_SSL_DEBUG_MSG( 1,
( "cookie length does not match incoming message size" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
mbedtls_free( ssl->handshake->verify_cookie );
ssl->handshake->verify_cookie = mbedtls_calloc( 1, cookie_len );
if( ssl->handshake->verify_cookie == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc failed (%d bytes)", cookie_len ) );
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
}
memcpy( ssl->handshake->verify_cookie, p, cookie_len );
ssl->handshake->verify_cookie_len = cookie_len;
/* Start over at ClientHello */
ssl->state = MBEDTLS_SSL_CLIENT_HELLO;
mbedtls_ssl_reset_checksum( ssl );
mbedtls_ssl_recv_flight_completed( ssl );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse hello verify request" ) );
return( 0 );
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
static int ssl_parse_server_hello( mbedtls_ssl_context *ssl )
{
int ret, i;
size_t n;
size_t ext_len;
unsigned char *buf, *ext;
unsigned char comp;
#if defined(MBEDTLS_ZLIB_SUPPORT)
int accept_comp;
#endif
#if defined(MBEDTLS_SSL_RENEGOTIATION)
int renegotiation_info_seen = 0;
#endif
int handshake_failure = 0;
const mbedtls_ssl_ciphersuite_t *suite_info;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse server hello" ) );
buf = ssl->in_msg;
if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
{
/* No alert on a read error. */
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
return( ret );
}
if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
{
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
{
ssl->renego_records_seen++;
if( ssl->conf->renego_max_records >= 0 &&
ssl->renego_records_seen > ssl->conf->renego_max_records )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation requested, "
"but not honored by server" ) );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-handshake message during renego" ) );
ssl->keep_current_message = 1;
return( MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO );
}
#endif /* MBEDTLS_SSL_RENEGOTIATION */
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
if( buf[0] == MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "received hello verify request" ) );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server hello" ) );
return( ssl_parse_hello_verify_request( ssl ) );
}
else
{
/* We made it through the verification process */
mbedtls_free( ssl->handshake->verify_cookie );
ssl->handshake->verify_cookie = NULL;
ssl->handshake->verify_cookie_len = 0;
}
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
if( ssl->in_hslen < 38 + mbedtls_ssl_hs_hdr_len( ssl ) ||
buf[0] != MBEDTLS_SSL_HS_SERVER_HELLO )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
/*
* 0 . 1 server_version
* 2 . 33 random (maybe including 4 bytes of Unix time)
* 34 . 34 session_id length = n
* 35 . 34+n session_id
* 35+n . 36+n cipher_suite
* 37+n . 37+n compression_method
*
* 38+n . 39+n extensions length (optional)
* 40+n . .. extensions
*/
buf += mbedtls_ssl_hs_hdr_len( ssl );
MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, version", buf + 0, 2 );
mbedtls_ssl_read_version( &ssl->major_ver, &ssl->minor_ver,
ssl->conf->transport, buf + 0 );
if( ssl->major_ver < ssl->conf->min_major_ver ||
ssl->minor_ver < ssl->conf->min_minor_ver ||
ssl->major_ver > ssl->conf->max_major_ver ||
ssl->minor_ver > ssl->conf->max_minor_ver )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "server version out of bounds - "
" min: [%d:%d], server: [%d:%d], max: [%d:%d]",
ssl->conf->min_major_ver, ssl->conf->min_minor_ver,
ssl->major_ver, ssl->minor_ver,
ssl->conf->max_major_ver, ssl->conf->max_minor_ver ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION );
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, current time: %lu",
( (uint32_t) buf[2] << 24 ) |
( (uint32_t) buf[3] << 16 ) |
( (uint32_t) buf[4] << 8 ) |
( (uint32_t) buf[5] ) ) );
memcpy( ssl->handshake->randbytes + 32, buf + 2, 32 );
n = buf[34];
MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, random bytes", buf + 2, 32 );
if( n > 32 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
if( ssl->in_hslen > mbedtls_ssl_hs_hdr_len( ssl ) + 39 + n )
{
ext_len = ( ( buf[38 + n] << 8 )
| ( buf[39 + n] ) );
if( ( ext_len > 0 && ext_len < 4 ) ||
ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) + 40 + n + ext_len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
}
else if( ssl->in_hslen == mbedtls_ssl_hs_hdr_len( ssl ) + 38 + n )
{
ext_len = 0;
}
else
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
/* ciphersuite (used later) */
i = ( buf[35 + n] << 8 ) | buf[36 + n];
/*
* Read and check compression
*/
comp = buf[37 + n];
#if defined(MBEDTLS_ZLIB_SUPPORT)
/* See comments in ssl_write_client_hello() */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
accept_comp = 0;
else
#endif
accept_comp = 1;
if( comp != MBEDTLS_SSL_COMPRESS_NULL &&
( comp != MBEDTLS_SSL_COMPRESS_DEFLATE || accept_comp == 0 ) )
#else /* MBEDTLS_ZLIB_SUPPORT */
if( comp != MBEDTLS_SSL_COMPRESS_NULL )
#endif/* MBEDTLS_ZLIB_SUPPORT */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "server hello, bad compression: %d", comp ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
/*
* Initialize update checksum functions
*/
ssl->transform_negotiate->ciphersuite_info = mbedtls_ssl_ciphersuite_from_id( i );
if( ssl->transform_negotiate->ciphersuite_info == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "ciphersuite info for %04x not found", i ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
mbedtls_ssl_optimize_checksum( ssl, ssl->transform_negotiate->ciphersuite_info );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, session id len.: %d", n ) );
MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, session id", buf + 35, n );
/*
* Check if the session can be resumed
*/
if( ssl->handshake->resume == 0 || n == 0 ||
#if defined(MBEDTLS_SSL_RENEGOTIATION)
ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE ||
#endif
ssl->session_negotiate->ciphersuite != i ||
ssl->session_negotiate->compression != comp ||
ssl->session_negotiate->id_len != n ||
memcmp( ssl->session_negotiate->id, buf + 35, n ) != 0 )
{
ssl->state++;
ssl->handshake->resume = 0;
#if defined(MBEDTLS_HAVE_TIME)
ssl->session_negotiate->start = mbedtls_time( NULL );
#endif
ssl->session_negotiate->ciphersuite = i;
ssl->session_negotiate->compression = comp;
ssl->session_negotiate->id_len = n;
memcpy( ssl->session_negotiate->id, buf + 35, n );
}
else
{
ssl->state = MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC;
if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
return( ret );
}
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "%s session has been resumed",
ssl->handshake->resume ? "a" : "no" ) );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %04x", i ) );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, compress alg.: %d", buf[37 + n] ) );
/*
* Perform cipher suite validation in same way as in ssl_write_client_hello.
*/
i = 0;
while( 1 )
{
if( ssl->conf->ciphersuite_list[ssl->minor_ver][i] == 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
if( ssl->conf->ciphersuite_list[ssl->minor_ver][i++] ==
ssl->session_negotiate->ciphersuite )
{
break;
}
}
suite_info = mbedtls_ssl_ciphersuite_from_id( ssl->session_negotiate->ciphersuite );
if( ssl_validate_ciphersuite( suite_info, ssl, ssl->minor_ver, ssl->minor_ver ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %s", suite_info->name ) );
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( suite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA &&
ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
{
ssl->handshake->ecrs_enabled = 1;
}
#endif
if( comp != MBEDTLS_SSL_COMPRESS_NULL
#if defined(MBEDTLS_ZLIB_SUPPORT)
&& comp != MBEDTLS_SSL_COMPRESS_DEFLATE
#endif
)
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
ssl->session_negotiate->compression = comp;
ext = buf + 40 + n;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "server hello, total extension length: %d", ext_len ) );
while( ext_len )
{
unsigned int ext_id = ( ( ext[0] << 8 )
| ( ext[1] ) );
unsigned int ext_size = ( ( ext[2] << 8 )
| ( ext[3] ) );
if( ext_size + 4 > ext_len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
switch( ext_id )
{
case MBEDTLS_TLS_EXT_RENEGOTIATION_INFO:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found renegotiation extension" ) );
#if defined(MBEDTLS_SSL_RENEGOTIATION)
renegotiation_info_seen = 1;
#endif
if( ( ret = ssl_parse_renegotiation_info( ssl, ext + 4,
ext_size ) ) != 0 )
return( ret );
break;
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
case MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found max_fragment_length extension" ) );
if( ( ret = ssl_parse_max_fragment_length_ext( ssl,
ext + 4, ext_size ) ) != 0 )
{
return( ret );
}
break;
#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
case MBEDTLS_TLS_EXT_TRUNCATED_HMAC:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found truncated_hmac extension" ) );
if( ( ret = ssl_parse_truncated_hmac_ext( ssl,
ext + 4, ext_size ) ) != 0 )
{
return( ret );
}
break;
#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
case MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found encrypt_then_mac extension" ) );
if( ( ret = ssl_parse_encrypt_then_mac_ext( ssl,
ext + 4, ext_size ) ) != 0 )
{
return( ret );
}
break;
#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
case MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found extended_master_secret extension" ) );
if( ( ret = ssl_parse_extended_ms_ext( ssl,
ext + 4, ext_size ) ) != 0 )
{
return( ret );
}
break;
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
case MBEDTLS_TLS_EXT_SESSION_TICKET:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found session_ticket extension" ) );
if( ( ret = ssl_parse_session_ticket_ext( ssl,
ext + 4, ext_size ) ) != 0 )
{
return( ret );
}
break;
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
case MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found supported_point_formats extension" ) );
if( ( ret = ssl_parse_supported_point_formats_ext( ssl,
ext + 4, ext_size ) ) != 0 )
{
return( ret );
}
break;
#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ||
MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
case MBEDTLS_TLS_EXT_ECJPAKE_KKPP:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found ecjpake_kkpp extension" ) );
if( ( ret = ssl_parse_ecjpake_kkpp( ssl,
ext + 4, ext_size ) ) != 0 )
{
return( ret );
}
break;
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_SSL_ALPN)
case MBEDTLS_TLS_EXT_ALPN:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found alpn extension" ) );
if( ( ret = ssl_parse_alpn_ext( ssl, ext + 4, ext_size ) ) != 0 )
return( ret );
break;
#endif /* MBEDTLS_SSL_ALPN */
default:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "unknown extension found: %d (ignoring)",
ext_id ) );
}
ext_len -= 4 + ext_size;
ext += 4 + ext_size;
if( ext_len > 0 && ext_len < 4 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
}
/*
* Renegotiation security checks
*/
if( ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation, breaking off handshake" ) );
handshake_failure = 1;
}
#if defined(MBEDTLS_SSL_RENEGOTIATION)
else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
ssl->secure_renegotiation == MBEDTLS_SSL_SECURE_RENEGOTIATION &&
renegotiation_info_seen == 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension missing (secure)" ) );
handshake_failure = 1;
}
else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation not allowed" ) );
handshake_failure = 1;
}
else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
renegotiation_info_seen == 1 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension present (legacy)" ) );
handshake_failure = 1;
}
#endif /* MBEDTLS_SSL_RENEGOTIATION */
if( handshake_failure == 1 )
{
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server hello" ) );
return( 0 );
}
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
static int ssl_parse_server_dh_params( mbedtls_ssl_context *ssl, unsigned char **p,
unsigned char *end )
{
int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
/*
* Ephemeral DH parameters:
*
* struct {
* opaque dh_p<1..2^16-1>;
* opaque dh_g<1..2^16-1>;
* opaque dh_Ys<1..2^16-1>;
* } ServerDHParams;
*/
if( ( ret = mbedtls_dhm_read_params( &ssl->handshake->dhm_ctx, p, end ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 2, ( "mbedtls_dhm_read_params" ), ret );
return( ret );
}
if( ssl->handshake->dhm_ctx.len * 8 < ssl->conf->dhm_min_bitlen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "DHM prime too short: %d < %d",
ssl->handshake->dhm_ctx.len * 8,
ssl->conf->dhm_min_bitlen ) );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: P ", &ssl->handshake->dhm_ctx.P );
MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: G ", &ssl->handshake->dhm_ctx.G );
MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GY", &ssl->handshake->dhm_ctx.GY );
return( ret );
}
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
static int ssl_check_server_ecdh_params( const mbedtls_ssl_context *ssl )
{
const mbedtls_ecp_curve_info *curve_info;
mbedtls_ecp_group_id grp_id;
#if defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
grp_id = ssl->handshake->ecdh_ctx.grp.id;
#else
grp_id = ssl->handshake->ecdh_ctx.grp_id;
#endif
curve_info = mbedtls_ecp_curve_info_from_grp_id( grp_id );
if( curve_info == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "ECDH curve: %s", curve_info->name ) );
#if defined(MBEDTLS_ECP_C)
if( mbedtls_ssl_check_curve( ssl, grp_id ) != 0 )
#else
if( ssl->handshake->ecdh_ctx.grp.nbits < 163 ||
ssl->handshake->ecdh_ctx.grp.nbits > 521 )
#endif
return( -1 );
MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
MBEDTLS_DEBUG_ECDH_QP );
return( 0 );
}
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
static int ssl_parse_server_ecdh_params( mbedtls_ssl_context *ssl,
unsigned char **p,
unsigned char *end )
{
int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
/*
* Ephemeral ECDH parameters:
*
* struct {
* ECParameters curve_params;
* ECPoint public;
* } ServerECDHParams;
*/
if( ( ret = mbedtls_ecdh_read_params( &ssl->handshake->ecdh_ctx,
(const unsigned char **) p, end ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_read_params" ), ret );
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS;
#endif
return( ret );
}
if( ssl_check_server_ecdh_params( ssl ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message (ECDHE curve)" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
return( ret );
}
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
static int ssl_parse_server_psk_hint( mbedtls_ssl_context *ssl,
unsigned char **p,
unsigned char *end )
{
int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
size_t len;
((void) ssl);
/*
* PSK parameters:
*
* opaque psk_identity_hint<0..2^16-1>;
*/
if( end - (*p) < 2 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message "
"(psk_identity_hint length)" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
len = (*p)[0] << 8 | (*p)[1];
*p += 2;
if( end - (*p) < (int) len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message "
"(psk_identity_hint length)" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
/*
* Note: we currently ignore the PKS identity hint, as we only allow one
* PSK to be provisionned on the client. This could be changed later if
* someone needs that feature.
*/
*p += len;
ret = 0;
return( ret );
}
#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
/*
* Generate a pre-master secret and encrypt it with the server's RSA key
*/
static int ssl_write_encrypted_pms( mbedtls_ssl_context *ssl,
size_t offset, size_t *olen,
size_t pms_offset )
{
int ret;
size_t len_bytes = ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ? 0 : 2;
unsigned char *p = ssl->handshake->premaster + pms_offset;
if( offset + len_bytes > MBEDTLS_SSL_OUT_CONTENT_LEN )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small for encrypted pms" ) );
return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
}
/*
* Generate (part of) the pre-master as
* struct {
* ProtocolVersion client_version;
* opaque random[46];
* } PreMasterSecret;
*/
mbedtls_ssl_write_version( ssl->conf->max_major_ver, ssl->conf->max_minor_ver,
ssl->conf->transport, p );
if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p + 2, 46 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "f_rng", ret );
return( ret );
}
ssl->handshake->pmslen = 48;
if( ssl->session_negotiate->peer_cert == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "certificate required" ) );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
/*
* Now write it out, encrypted
*/
if( ! mbedtls_pk_can_do( &ssl->session_negotiate->peer_cert->pk,
MBEDTLS_PK_RSA ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "certificate key type mismatch" ) );
return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH );
}
if( ( ret = mbedtls_pk_encrypt( &ssl->session_negotiate->peer_cert->pk,
p, ssl->handshake->pmslen,
ssl->out_msg + offset + len_bytes, olen,
MBEDTLS_SSL_OUT_CONTENT_LEN - offset - len_bytes,
ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_rsa_pkcs1_encrypt", ret );
return( ret );
}
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( len_bytes == 2 )
{
ssl->out_msg[offset+0] = (unsigned char)( *olen >> 8 );
ssl->out_msg[offset+1] = (unsigned char)( *olen );
*olen += 2;
}
#endif
return( 0 );
}
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
static int ssl_parse_signature_algorithm( mbedtls_ssl_context *ssl,
unsigned char **p,
unsigned char *end,
mbedtls_md_type_t *md_alg,
mbedtls_pk_type_t *pk_alg )
{
((void) ssl);
*md_alg = MBEDTLS_MD_NONE;
*pk_alg = MBEDTLS_PK_NONE;
/* Only in TLS 1.2 */
if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 )
{
return( 0 );
}
if( (*p) + 2 > end )
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
/*
* Get hash algorithm
*/
if( ( *md_alg = mbedtls_ssl_md_alg_from_hash( (*p)[0] ) ) == MBEDTLS_MD_NONE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Server used unsupported "
"HashAlgorithm %d", *(p)[0] ) );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
/*
* Get signature algorithm
*/
if( ( *pk_alg = mbedtls_ssl_pk_alg_from_sig( (*p)[1] ) ) == MBEDTLS_PK_NONE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "server used unsupported "
"SignatureAlgorithm %d", (*p)[1] ) );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
/*
* Check if the hash is acceptable
*/
if( mbedtls_ssl_check_sig_hash( ssl, *md_alg ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "server used HashAlgorithm %d that was not offered",
*(p)[0] ) );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Server used SignatureAlgorithm %d", (*p)[1] ) );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Server used HashAlgorithm %d", (*p)[0] ) );
*p += 2;
return( 0 );
}
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl )
{
int ret;
const mbedtls_ecp_keypair *peer_key;
if( ssl->session_negotiate->peer_cert == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "certificate required" ) );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
if( ! mbedtls_pk_can_do( &ssl->session_negotiate->peer_cert->pk,
MBEDTLS_PK_ECKEY ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key not ECDH capable" ) );
return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH );
}
peer_key = mbedtls_pk_ec( ssl->session_negotiate->peer_cert->pk );
if( ( ret = mbedtls_ecdh_get_params( &ssl->handshake->ecdh_ctx, peer_key,
MBEDTLS_ECDH_THEIRS ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_get_params" ), ret );
return( ret );
}
if( ssl_check_server_ecdh_params( ssl ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server certificate (ECDH curve)" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
}
return( ret );
}
#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) ||
MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
static int ssl_parse_server_key_exchange( mbedtls_ssl_context *ssl )
{
int ret;
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
ssl->transform_negotiate->ciphersuite_info;
unsigned char *p = NULL, *end = NULL;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse server key exchange" ) );
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse server key exchange" ) );
ssl->state++;
return( 0 );
}
((void) p);
((void) end);
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_RSA ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA )
{
if( ( ret = ssl_get_ecdh_params_from_cert( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_get_ecdh_params_from_cert", ret );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( ret );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse server key exchange" ) );
ssl->state++;
return( 0 );
}
((void) p);
((void) end);
#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ssl->handshake->ecrs_enabled &&
ssl->handshake->ecrs_state == ssl_ecrs_ske_start_processing )
{
goto start_processing;
}
#endif
if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
return( ret );
}
if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
/*
* ServerKeyExchange may be skipped with PSK and RSA-PSK when the server
* doesn't use a psk_identity_hint
*/
if( ssl->in_msg[0] != MBEDTLS_SSL_HS_SERVER_KEY_EXCHANGE )
{
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK )
{
/* Current message is probably either
* CertificateRequest or ServerHelloDone */
ssl->keep_current_message = 1;
goto exit;
}
MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key exchange message must "
"not be skipped" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ssl->handshake->ecrs_enabled )
ssl->handshake->ecrs_state = ssl_ecrs_ske_start_processing;
start_processing:
#endif
p = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl );
end = ssl->in_msg + ssl->in_hslen;
MBEDTLS_SSL_DEBUG_BUF( 3, "server key exchange", p, end - p );
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK )
{
if( ssl_parse_server_psk_hint( ssl, &p, end ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
} /* FALLTROUGH */
#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK )
; /* nothing more to do */
else
#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED ||
MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK )
{
if( ssl_parse_server_dh_params( ssl, &p, end ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA )
{
if( ssl_parse_server_ecdh_params( ssl, &p, end ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
{
ret = mbedtls_ecjpake_read_round_two( &ssl->handshake->ecjpake_ctx,
p, end - p );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_two", ret );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
if( mbedtls_ssl_ciphersuite_uses_server_signature( ciphersuite_info ) )
{
size_t sig_len, hashlen;
unsigned char hash[64];
mbedtls_md_type_t md_alg = MBEDTLS_MD_NONE;
mbedtls_pk_type_t pk_alg = MBEDTLS_PK_NONE;
unsigned char *params = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl );
size_t params_len = p - params;
void *rs_ctx = NULL;
/*
* Handle the digitally-signed structure
*/
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
{
if( ssl_parse_signature_algorithm( ssl, &p, end,
&md_alg, &pk_alg ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
if( pk_alg != mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
}
else
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1)
if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 )
{
pk_alg = mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info );
/* Default hash for ECDSA is SHA-1 */
if( pk_alg == MBEDTLS_PK_ECDSA && md_alg == MBEDTLS_MD_NONE )
md_alg = MBEDTLS_MD_SHA1;
}
else
#endif
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
/*
* Read signature
*/
if( p > end - 2 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
sig_len = ( p[0] << 8 ) | p[1];
p += 2;
if( p != end - sig_len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
MBEDTLS_SSL_DEBUG_BUF( 3, "signature", p, sig_len );
/*
* Compute the hash that has been signed
*/
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1)
if( md_alg == MBEDTLS_MD_NONE )
{
hashlen = 36;
ret = mbedtls_ssl_get_key_exchange_md_ssl_tls( ssl, hash, params,
params_len );
if( ret != 0 )
return( ret );
}
else
#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \
MBEDTLS_SSL_PROTO_TLS1_1 */
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( md_alg != MBEDTLS_MD_NONE )
{
ret = mbedtls_ssl_get_key_exchange_md_tls1_2( ssl, hash, &hashlen,
params, params_len,
md_alg );
if( ret != 0 )
return( ret );
}
else
#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
MBEDTLS_SSL_PROTO_TLS1_2 */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
MBEDTLS_SSL_DEBUG_BUF( 3, "parameters hash", hash, hashlen );
if( ssl->session_negotiate->peer_cert == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "certificate required" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
/*
* Verify signature
*/
if( ! mbedtls_pk_can_do( &ssl->session_negotiate->peer_cert->pk, pk_alg ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server key exchange message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH );
}
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ssl->handshake->ecrs_enabled )
rs_ctx = &ssl->handshake->ecrs_ctx.pk;
#endif
if( ( ret = mbedtls_pk_verify_restartable(
&ssl->session_negotiate->peer_cert->pk,
md_alg, hash, hashlen, p, sig_len, rs_ctx ) ) != 0 )
{
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ret != MBEDTLS_ERR_ECP_IN_PROGRESS )
#endif
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECRYPT_ERROR );
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret );
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS;
#endif
return( ret );
}
}
#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */
exit:
ssl->state++;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server key exchange" ) );
return( 0 );
}
#if ! defined(MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED)
static int ssl_parse_certificate_request( mbedtls_ssl_context *ssl )
{
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
ssl->transform_negotiate->ciphersuite_info;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate request" ) );
if( ! mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate request" ) );
ssl->state++;
return( 0 );
}
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#else /* MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */
static int ssl_parse_certificate_request( mbedtls_ssl_context *ssl )
{
int ret;
unsigned char *buf;
size_t n = 0;
size_t cert_type_len = 0, dn_len = 0;
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
ssl->transform_negotiate->ciphersuite_info;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate request" ) );
if( ! mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate request" ) );
ssl->state++;
return( 0 );
}
if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
return( ret );
}
if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
ssl->state++;
ssl->client_auth = ( ssl->in_msg[0] == MBEDTLS_SSL_HS_CERTIFICATE_REQUEST );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "got %s certificate request",
ssl->client_auth ? "a" : "no" ) );
if( ssl->client_auth == 0 )
{
/* Current message is probably the ServerHelloDone */
ssl->keep_current_message = 1;
goto exit;
}
/*
* struct {
* ClientCertificateType certificate_types<1..2^8-1>;
* SignatureAndHashAlgorithm
* supported_signature_algorithms<2^16-1>; -- TLS 1.2 only
* DistinguishedName certificate_authorities<0..2^16-1>;
* } CertificateRequest;
*
* Since we only support a single certificate on clients, let's just
* ignore all the information that's supposed to help us pick a
* certificate.
*
* We could check that our certificate matches the request, and bail out
* if it doesn't, but it's simpler to just send the certificate anyway,
* and give the server the opportunity to decide if it should terminate
* the connection when it doesn't like our certificate.
*
* Same goes for the hash in TLS 1.2's signature_algorithms: at this
* point we only have one hash available (see comments in
* write_certificate_verify), so let's just use what we have.
*
* However, we still minimally parse the message to check it is at least
* superficially sane.
*/
buf = ssl->in_msg;
/* certificate_types */
if( ssl->in_hslen <= mbedtls_ssl_hs_hdr_len( ssl ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST );
}
cert_type_len = buf[mbedtls_ssl_hs_hdr_len( ssl )];
n = cert_type_len;
/*
* In the subsequent code there are two paths that read from buf:
* * the length of the signature algorithms field (if minor version of
* SSL is 3),
* * distinguished name length otherwise.
* Both reach at most the index:
* ...hdr_len + 2 + n,
* therefore the buffer length at this point must be greater than that
* regardless of the actual code path.
*/
if( ssl->in_hslen <= mbedtls_ssl_hs_hdr_len( ssl ) + 2 + n )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST );
}
/* supported_signature_algorithms */
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
{
size_t sig_alg_len = ( ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 1 + n] << 8 )
| ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 2 + n] ) );
#if defined(MBEDTLS_DEBUG_C)
unsigned char* sig_alg;
size_t i;
#endif
/*
* The furthest access in buf is in the loop few lines below:
* sig_alg[i + 1],
* where:
* sig_alg = buf + ...hdr_len + 3 + n,
* max(i) = sig_alg_len - 1.
* Therefore the furthest access is:
* buf[...hdr_len + 3 + n + sig_alg_len - 1 + 1],
* which reduces to:
* buf[...hdr_len + 3 + n + sig_alg_len],
* which is one less than we need the buf to be.
*/
if( ssl->in_hslen <= mbedtls_ssl_hs_hdr_len( ssl ) + 3 + n + sig_alg_len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST );
}
#if defined(MBEDTLS_DEBUG_C)
sig_alg = buf + mbedtls_ssl_hs_hdr_len( ssl ) + 3 + n;
for( i = 0; i < sig_alg_len; i += 2 )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "Supported Signature Algorithm found: %d"
",%d", sig_alg[i], sig_alg[i + 1] ) );
}
#endif
n += 2 + sig_alg_len;
}
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
/* certificate_authorities */
dn_len = ( ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 1 + n] << 8 )
| ( buf[mbedtls_ssl_hs_hdr_len( ssl ) + 2 + n] ) );
n += dn_len;
if( ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) + 3 + n )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate request message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST );
}
exit:
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate request" ) );
return( 0 );
}
#endif /* MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */
static int ssl_parse_server_hello_done( mbedtls_ssl_context *ssl )
{
int ret;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse server hello done" ) );
if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
return( ret );
}
if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello done message" ) );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
if( ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) ||
ssl->in_msg[0] != MBEDTLS_SSL_HS_SERVER_HELLO_DONE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad server hello done message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_HELLO_DONE );
}
ssl->state++;
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
mbedtls_ssl_recv_flight_completed( ssl );
#endif
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse server hello done" ) );
return( 0 );
}
static int ssl_write_client_key_exchange( mbedtls_ssl_context *ssl )
{
int ret;
size_t i, n;
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
ssl->transform_negotiate->ciphersuite_info;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write client key exchange" ) );
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA )
{
/*
* DHM key exchange -- send G^X mod P
*/
n = ssl->handshake->dhm_ctx.len;
ssl->out_msg[4] = (unsigned char)( n >> 8 );
ssl->out_msg[5] = (unsigned char)( n );
i = 6;
ret = mbedtls_dhm_make_public( &ssl->handshake->dhm_ctx,
(int) mbedtls_mpi_size( &ssl->handshake->dhm_ctx.P ),
&ssl->out_msg[i], n,
ssl->conf->f_rng, ssl->conf->p_rng );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_make_public", ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: X ", &ssl->handshake->dhm_ctx.X );
MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GX", &ssl->handshake->dhm_ctx.GX );
if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx,
ssl->handshake->premaster,
MBEDTLS_PREMASTER_SIZE,
&ssl->handshake->pmslen,
ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K );
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_RSA ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA )
{
/*
* ECDH key exchange -- send client public value
*/
i = 4;
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ssl->handshake->ecrs_enabled )
{
if( ssl->handshake->ecrs_state == ssl_ecrs_cke_ecdh_calc_secret )
goto ecdh_calc_secret;
mbedtls_ecdh_enable_restart( &ssl->handshake->ecdh_ctx );
}
#endif
ret = mbedtls_ecdh_make_public( &ssl->handshake->ecdh_ctx,
&n,
&ssl->out_msg[i], 1000,
ssl->conf->f_rng, ssl->conf->p_rng );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_make_public", ret );
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS;
#endif
return( ret );
}
MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
MBEDTLS_DEBUG_ECDH_Q );
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ssl->handshake->ecrs_enabled )
{
ssl->handshake->ecrs_n = n;
ssl->handshake->ecrs_state = ssl_ecrs_cke_ecdh_calc_secret;
}
ecdh_calc_secret:
if( ssl->handshake->ecrs_enabled )
n = ssl->handshake->ecrs_n;
#endif
if( ( ret = mbedtls_ecdh_calc_secret( &ssl->handshake->ecdh_ctx,
&ssl->handshake->pmslen,
ssl->handshake->premaster,
MBEDTLS_MPI_MAX_SIZE,
ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret );
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS;
#endif
return( ret );
}
MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
MBEDTLS_DEBUG_ECDH_Z );
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
if( mbedtls_ssl_ciphersuite_uses_psk( ciphersuite_info ) )
{
/*
* opaque psk_identity<0..2^16-1>;
*/
if( ssl->conf->psk == NULL || ssl->conf->psk_identity == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no private key for PSK" ) );
return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED );
}
i = 4;
n = ssl->conf->psk_identity_len;
if( i + 2 + n > MBEDTLS_SSL_OUT_CONTENT_LEN )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "psk identity too long or "
"SSL buffer too short" ) );
return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
}
ssl->out_msg[i++] = (unsigned char)( n >> 8 );
ssl->out_msg[i++] = (unsigned char)( n );
memcpy( ssl->out_msg + i, ssl->conf->psk_identity, ssl->conf->psk_identity_len );
i += ssl->conf->psk_identity_len;
#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK )
{
n = 0;
}
else
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK )
{
if( ( ret = ssl_write_encrypted_pms( ssl, i, &n, 2 ) ) != 0 )
return( ret );
}
else
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK )
{
/*
* ClientDiffieHellmanPublic public (DHM send G^X mod P)
*/
n = ssl->handshake->dhm_ctx.len;
if( i + 2 + n > MBEDTLS_SSL_OUT_CONTENT_LEN )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "psk identity or DHM size too long"
" or SSL buffer too short" ) );
return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
}
ssl->out_msg[i++] = (unsigned char)( n >> 8 );
ssl->out_msg[i++] = (unsigned char)( n );
ret = mbedtls_dhm_make_public( &ssl->handshake->dhm_ctx,
(int) mbedtls_mpi_size( &ssl->handshake->dhm_ctx.P ),
&ssl->out_msg[i], n,
ssl->conf->f_rng, ssl->conf->p_rng );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_make_public", ret );
return( ret );
}
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK )
{
/*
* ClientECDiffieHellmanPublic public;
*/
ret = mbedtls_ecdh_make_public( &ssl->handshake->ecdh_ctx, &n,
&ssl->out_msg[i], MBEDTLS_SSL_OUT_CONTENT_LEN - i,
ssl->conf->f_rng, ssl->conf->p_rng );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_make_public", ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
MBEDTLS_DEBUG_ECDH_Q );
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl,
ciphersuite_info->key_exchange ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret );
return( ret );
}
}
else
#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA )
{
i = 4;
if( ( ret = ssl_write_encrypted_pms( ssl, i, &n, 0 ) ) != 0 )
return( ret );
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
{
i = 4;
ret = mbedtls_ecjpake_write_round_two( &ssl->handshake->ecjpake_ctx,
ssl->out_msg + i, MBEDTLS_SSL_OUT_CONTENT_LEN - i, &n,
ssl->conf->f_rng, ssl->conf->p_rng );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_write_round_two", ret );
return( ret );
}
ret = mbedtls_ecjpake_derive_secret( &ssl->handshake->ecjpake_ctx,
ssl->handshake->premaster, 32, &ssl->handshake->pmslen,
ssl->conf->f_rng, ssl->conf->p_rng );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_derive_secret", ret );
return( ret );
}
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
{
((void) ciphersuite_info);
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
ssl->out_msglen = i + n;
ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
ssl->out_msg[0] = MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE;
ssl->state++;
if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write client key exchange" ) );
return( 0 );
}
#if !defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)&& \
!defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl )
{
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
ssl->transform_negotiate->ciphersuite_info;
int ret;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate verify" ) );
if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret );
return( ret );
}
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate verify" ) );
ssl->state++;
return( 0 );
}
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#else
static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
ssl->transform_negotiate->ciphersuite_info;
size_t n = 0, offset = 0;
unsigned char hash[48];
unsigned char *hash_start = hash;
mbedtls_md_type_t md_alg = MBEDTLS_MD_NONE;
unsigned int hashlen;
void *rs_ctx = NULL;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate verify" ) );
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ssl->handshake->ecrs_enabled &&
ssl->handshake->ecrs_state == ssl_ecrs_crt_vrfy_sign )
{
goto sign;
}
#endif
if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret );
return( ret );
}
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate verify" ) );
ssl->state++;
return( 0 );
}
if( ssl->client_auth == 0 || mbedtls_ssl_own_cert( ssl ) == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate verify" ) );
ssl->state++;
return( 0 );
}
if( mbedtls_ssl_own_key( ssl ) == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no private key for certificate" ) );
return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED );
}
/*
* Make a signature of the handshake digests
*/
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ssl->handshake->ecrs_enabled )
ssl->handshake->ecrs_state = ssl_ecrs_crt_vrfy_sign;
sign:
#endif
ssl->handshake->calc_verify( ssl, hash );
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1)
if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 )
{
/*
* digitally-signed struct {
* opaque md5_hash[16];
* opaque sha_hash[20];
* };
*
* md5_hash
* MD5(handshake_messages);
*
* sha_hash
* SHA(handshake_messages);
*/
hashlen = 36;
md_alg = MBEDTLS_MD_NONE;
/*
* For ECDSA, default hash is SHA-1 only
*/
if( mbedtls_pk_can_do( mbedtls_ssl_own_key( ssl ), MBEDTLS_PK_ECDSA ) )
{
hash_start += 16;
hashlen -= 16;
md_alg = MBEDTLS_MD_SHA1;
}
}
else
#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \
MBEDTLS_SSL_PROTO_TLS1_1 */
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
{
/*
* digitally-signed struct {
* opaque handshake_messages[handshake_messages_length];
* };
*
* Taking shortcut here. We assume that the server always allows the
* PRF Hash function and has sent it in the allowed signature
* algorithms list received in the Certificate Request message.
*
* Until we encounter a server that does not, we will take this
* shortcut.
*
* Reason: Otherwise we should have running hashes for SHA512 and SHA224
* in order to satisfy 'weird' needs from the server side.
*/
if( ssl->transform_negotiate->ciphersuite_info->mac ==
MBEDTLS_MD_SHA384 )
{
md_alg = MBEDTLS_MD_SHA384;
ssl->out_msg[4] = MBEDTLS_SSL_HASH_SHA384;
}
else
{
md_alg = MBEDTLS_MD_SHA256;
ssl->out_msg[4] = MBEDTLS_SSL_HASH_SHA256;
}
ssl->out_msg[5] = mbedtls_ssl_sig_from_pk( mbedtls_ssl_own_key( ssl ) );
/* Info from md_alg will be used instead */
hashlen = 0;
offset = 2;
}
else
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ssl->handshake->ecrs_enabled )
rs_ctx = &ssl->handshake->ecrs_ctx.pk;
#endif
if( ( ret = mbedtls_pk_sign_restartable( mbedtls_ssl_own_key( ssl ),
md_alg, hash_start, hashlen,
ssl->out_msg + 6 + offset, &n,
ssl->conf->f_rng, ssl->conf->p_rng, rs_ctx ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_sign", ret );
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
ret = MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS;
#endif
return( ret );
}
ssl->out_msg[4 + offset] = (unsigned char)( n >> 8 );
ssl->out_msg[5 + offset] = (unsigned char)( n );
ssl->out_msglen = 6 + n + offset;
ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
ssl->out_msg[0] = MBEDTLS_SSL_HS_CERTIFICATE_VERIFY;
ssl->state++;
if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write certificate verify" ) );
return( ret );
}
#endif /* !MBEDTLS_KEY_EXCHANGE_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
static int ssl_parse_new_session_ticket( mbedtls_ssl_context *ssl )
{
int ret;
uint32_t lifetime;
size_t ticket_len;
unsigned char *ticket;
const unsigned char *msg;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse new session ticket" ) );
if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
return( ret );
}
if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
/*
* struct {
* uint32 ticket_lifetime_hint;
* opaque ticket<0..2^16-1>;
* } NewSessionTicket;
*
* 0 . 3 ticket_lifetime_hint
* 4 . 5 ticket_len (n)
* 6 . 5+n ticket content
*/
if( ssl->in_msg[0] != MBEDTLS_SSL_HS_NEW_SESSION_TICKET ||
ssl->in_hslen < 6 + mbedtls_ssl_hs_hdr_len( ssl ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET );
}
msg = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl );
lifetime = ( ((uint32_t) msg[0]) << 24 ) | ( msg[1] << 16 ) |
( msg[2] << 8 ) | ( msg[3] );
ticket_len = ( msg[4] << 8 ) | ( msg[5] );
if( ticket_len + 6 + mbedtls_ssl_hs_hdr_len( ssl ) != ssl->in_hslen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad new session ticket message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_NEW_SESSION_TICKET );
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket length: %d", ticket_len ) );
/* We're not waiting for a NewSessionTicket message any more */
ssl->handshake->new_session_ticket = 0;
ssl->state = MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC;
/*
* Zero-length ticket means the server changed his mind and doesn't want
* to send a ticket after all, so just forget it
*/
if( ticket_len == 0 )
return( 0 );
mbedtls_platform_zeroize( ssl->session_negotiate->ticket,
ssl->session_negotiate->ticket_len );
mbedtls_free( ssl->session_negotiate->ticket );
ssl->session_negotiate->ticket = NULL;
ssl->session_negotiate->ticket_len = 0;
if( ( ticket = mbedtls_calloc( 1, ticket_len ) ) == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "ticket alloc failed" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
}
memcpy( ticket, msg + 6, ticket_len );
ssl->session_negotiate->ticket = ticket;
ssl->session_negotiate->ticket_len = ticket_len;
ssl->session_negotiate->ticket_lifetime = lifetime;
/*
* RFC 5077 section 3.4:
* "If the client receives a session ticket from the server, then it
* discards any Session ID that was sent in the ServerHello."
*/
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket in use, discarding session id" ) );
ssl->session_negotiate->id_len = 0;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse new session ticket" ) );
return( 0 );
}
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
/*
* SSL handshake -- client side -- single step
*/
int mbedtls_ssl_handshake_client_step( mbedtls_ssl_context *ssl )
{
int ret = 0;
if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER || ssl->handshake == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "client state: %d", ssl->state ) );
if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
return( ret );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING )
{
if( ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
return( ret );
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
/* Change state now, so that it is right in mbedtls_ssl_read_record(), used
* by DTLS for dropping out-of-sequence ChangeCipherSpec records */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
if( ssl->state == MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC &&
ssl->handshake->new_session_ticket != 0 )
{
ssl->state = MBEDTLS_SSL_SERVER_NEW_SESSION_TICKET;
}
#endif
switch( ssl->state )
{
case MBEDTLS_SSL_HELLO_REQUEST:
ssl->state = MBEDTLS_SSL_CLIENT_HELLO;
break;
/*
* ==> ClientHello
*/
case MBEDTLS_SSL_CLIENT_HELLO:
ret = ssl_write_client_hello( ssl );
break;
/*
* <== ServerHello
* Certificate
* ( ServerKeyExchange )
* ( CertificateRequest )
* ServerHelloDone
*/
case MBEDTLS_SSL_SERVER_HELLO:
ret = ssl_parse_server_hello( ssl );
break;
case MBEDTLS_SSL_SERVER_CERTIFICATE:
ret = mbedtls_ssl_parse_certificate( ssl );
break;
case MBEDTLS_SSL_SERVER_KEY_EXCHANGE:
ret = ssl_parse_server_key_exchange( ssl );
break;
case MBEDTLS_SSL_CERTIFICATE_REQUEST:
ret = ssl_parse_certificate_request( ssl );
break;
case MBEDTLS_SSL_SERVER_HELLO_DONE:
ret = ssl_parse_server_hello_done( ssl );
break;
/*
* ==> ( Certificate/Alert )
* ClientKeyExchange
* ( CertificateVerify )
* ChangeCipherSpec
* Finished
*/
case MBEDTLS_SSL_CLIENT_CERTIFICATE:
ret = mbedtls_ssl_write_certificate( ssl );
break;
case MBEDTLS_SSL_CLIENT_KEY_EXCHANGE:
ret = ssl_write_client_key_exchange( ssl );
break;
case MBEDTLS_SSL_CERTIFICATE_VERIFY:
ret = ssl_write_certificate_verify( ssl );
break;
case MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC:
ret = mbedtls_ssl_write_change_cipher_spec( ssl );
break;
case MBEDTLS_SSL_CLIENT_FINISHED:
ret = mbedtls_ssl_write_finished( ssl );
break;
/*
* <== ( NewSessionTicket )
* ChangeCipherSpec
* Finished
*/
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
case MBEDTLS_SSL_SERVER_NEW_SESSION_TICKET:
ret = ssl_parse_new_session_ticket( ssl );
break;
#endif
case MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC:
ret = mbedtls_ssl_parse_change_cipher_spec( ssl );
break;
case MBEDTLS_SSL_SERVER_FINISHED:
ret = mbedtls_ssl_parse_finished( ssl );
break;
case MBEDTLS_SSL_FLUSH_BUFFERS:
MBEDTLS_SSL_DEBUG_MSG( 2, ( "handshake: done" ) );
ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP;
break;
case MBEDTLS_SSL_HANDSHAKE_WRAPUP:
mbedtls_ssl_handshake_wrapup( ssl );
break;
default:
MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid state %d", ssl->state ) );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
return( ret );
}
#endif /* MBEDTLS_SSL_CLI_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/ssl_cli.c | C | apache-2.0 | 123,899 |
/*
* DTLS cookie callbacks implementation
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* These session callbacks use a simple chained list
* to store and retrieve the session information.
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_SSL_COOKIE_C)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#include "mbedtls/ssl_cookie.h"
#include "mbedtls/ssl_internal.h"
#include "mbedtls/platform_util.h"
#include <string.h>
/*
* If DTLS is in use, then at least one of SHA-1, SHA-256, SHA-512 is
* available. Try SHA-256 first, 512 wastes resources since we need to stay
* with max 32 bytes of cookie for DTLS 1.0
*/
#if defined(MBEDTLS_SHA256_C)
#define COOKIE_MD MBEDTLS_MD_SHA224
#define COOKIE_MD_OUTLEN 32
#define COOKIE_HMAC_LEN 28
#elif defined(MBEDTLS_SHA512_C)
#define COOKIE_MD MBEDTLS_MD_SHA384
#define COOKIE_MD_OUTLEN 48
#define COOKIE_HMAC_LEN 28
#elif defined(MBEDTLS_SHA1_C)
#define COOKIE_MD MBEDTLS_MD_SHA1
#define COOKIE_MD_OUTLEN 20
#define COOKIE_HMAC_LEN 20
#else
#error "DTLS hello verify needs SHA-1 or SHA-2"
#endif
/*
* Cookies are formed of a 4-bytes timestamp (or serial number) and
* an HMAC of timestemp and client ID.
*/
#define COOKIE_LEN ( 4 + COOKIE_HMAC_LEN )
void mbedtls_ssl_cookie_init( mbedtls_ssl_cookie_ctx *ctx )
{
mbedtls_md_init( &ctx->hmac_ctx );
#if !defined(MBEDTLS_HAVE_TIME)
ctx->serial = 0;
#endif
ctx->timeout = MBEDTLS_SSL_COOKIE_TIMEOUT;
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_init( &ctx->mutex );
#endif
}
void mbedtls_ssl_cookie_set_timeout( mbedtls_ssl_cookie_ctx *ctx, unsigned long delay )
{
ctx->timeout = delay;
}
void mbedtls_ssl_cookie_free( mbedtls_ssl_cookie_ctx *ctx )
{
mbedtls_md_free( &ctx->hmac_ctx );
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_free( &ctx->mutex );
#endif
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ssl_cookie_ctx ) );
}
int mbedtls_ssl_cookie_setup( mbedtls_ssl_cookie_ctx *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
unsigned char key[COOKIE_MD_OUTLEN];
if( ( ret = f_rng( p_rng, key, sizeof( key ) ) ) != 0 )
return( ret );
ret = mbedtls_md_setup( &ctx->hmac_ctx, mbedtls_md_info_from_type( COOKIE_MD ), 1 );
if( ret != 0 )
return( ret );
ret = mbedtls_md_hmac_starts( &ctx->hmac_ctx, key, sizeof( key ) );
if( ret != 0 )
return( ret );
mbedtls_platform_zeroize( key, sizeof( key ) );
return( 0 );
}
/*
* Generate the HMAC part of a cookie
*/
static int ssl_cookie_hmac( mbedtls_md_context_t *hmac_ctx,
const unsigned char time[4],
unsigned char **p, unsigned char *end,
const unsigned char *cli_id, size_t cli_id_len )
{
unsigned char hmac_out[COOKIE_MD_OUTLEN];
if( (size_t)( end - *p ) < COOKIE_HMAC_LEN )
return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
if( mbedtls_md_hmac_reset( hmac_ctx ) != 0 ||
mbedtls_md_hmac_update( hmac_ctx, time, 4 ) != 0 ||
mbedtls_md_hmac_update( hmac_ctx, cli_id, cli_id_len ) != 0 ||
mbedtls_md_hmac_finish( hmac_ctx, hmac_out ) != 0 )
{
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
memcpy( *p, hmac_out, COOKIE_HMAC_LEN );
*p += COOKIE_HMAC_LEN;
return( 0 );
}
/*
* Generate cookie for DTLS ClientHello verification
*/
int mbedtls_ssl_cookie_write( void *p_ctx,
unsigned char **p, unsigned char *end,
const unsigned char *cli_id, size_t cli_id_len )
{
int ret;
mbedtls_ssl_cookie_ctx *ctx = (mbedtls_ssl_cookie_ctx *) p_ctx;
unsigned long t;
if( ctx == NULL || cli_id == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
if( (size_t)( end - *p ) < COOKIE_LEN )
return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
#if defined(MBEDTLS_HAVE_TIME)
t = (unsigned long) mbedtls_time( NULL );
#else
t = ctx->serial++;
#endif
(*p)[0] = (unsigned char)( t >> 24 );
(*p)[1] = (unsigned char)( t >> 16 );
(*p)[2] = (unsigned char)( t >> 8 );
(*p)[3] = (unsigned char)( t );
*p += 4;
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR + ret );
#endif
ret = ssl_cookie_hmac( &ctx->hmac_ctx, *p - 4,
p, end, cli_id, cli_id_len );
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR +
MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
/*
* Check a cookie
*/
int mbedtls_ssl_cookie_check( void *p_ctx,
const unsigned char *cookie, size_t cookie_len,
const unsigned char *cli_id, size_t cli_id_len )
{
unsigned char ref_hmac[COOKIE_HMAC_LEN];
int ret = 0;
unsigned char *p = ref_hmac;
mbedtls_ssl_cookie_ctx *ctx = (mbedtls_ssl_cookie_ctx *) p_ctx;
unsigned long cur_time, cookie_time;
if( ctx == NULL || cli_id == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
if( cookie_len != COOKIE_LEN )
return( -1 );
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR + ret );
#endif
if( ssl_cookie_hmac( &ctx->hmac_ctx, cookie,
&p, p + sizeof( ref_hmac ),
cli_id, cli_id_len ) != 0 )
ret = -1;
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR +
MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
if( ret != 0 )
return( ret );
if( mbedtls_ssl_safer_memcmp( cookie + 4, ref_hmac, sizeof( ref_hmac ) ) != 0 )
return( -1 );
#if defined(MBEDTLS_HAVE_TIME)
cur_time = (unsigned long) mbedtls_time( NULL );
#else
cur_time = ctx->serial;
#endif
cookie_time = ( (unsigned long) cookie[0] << 24 ) |
( (unsigned long) cookie[1] << 16 ) |
( (unsigned long) cookie[2] << 8 ) |
( (unsigned long) cookie[3] );
if( ctx->timeout != 0 && cur_time - cookie_time > ctx->timeout )
return( -1 );
return( 0 );
}
#endif /* MBEDTLS_SSL_COOKIE_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/ssl_cookie.c | C | apache-2.0 | 7,311 |
/*
* SSLv3/TLSv1 server-side functions
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_SSL_SRV_C)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#include "mbedtls/debug.h"
#include "mbedtls/ssl.h"
#include "mbedtls/ssl_internal.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_ECP_C)
#include "mbedtls/ecp.h"
#endif
#if defined(MBEDTLS_HAVE_TIME)
#include "mbedtls/platform_time.h"
#endif
#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
int mbedtls_ssl_set_client_transport_id( mbedtls_ssl_context *ssl,
const unsigned char *info,
size_t ilen )
{
if( ssl->conf->endpoint != MBEDTLS_SSL_IS_SERVER )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
mbedtls_free( ssl->cli_id );
if( ( ssl->cli_id = mbedtls_calloc( 1, ilen ) ) == NULL )
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
memcpy( ssl->cli_id, info, ilen );
ssl->cli_id_len = ilen;
return( 0 );
}
void mbedtls_ssl_conf_dtls_cookies( mbedtls_ssl_config *conf,
mbedtls_ssl_cookie_write_t *f_cookie_write,
mbedtls_ssl_cookie_check_t *f_cookie_check,
void *p_cookie )
{
conf->f_cookie_write = f_cookie_write;
conf->f_cookie_check = f_cookie_check;
conf->p_cookie = p_cookie;
}
#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
static int ssl_parse_servername_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
int ret;
size_t servername_list_size, hostname_len;
const unsigned char *p;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "parse ServerName extension" ) );
if( len < 2 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
servername_list_size = ( ( buf[0] << 8 ) | ( buf[1] ) );
if( servername_list_size + 2 != len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
p = buf + 2;
while( servername_list_size > 2 )
{
hostname_len = ( ( p[1] << 8 ) | p[2] );
if( hostname_len + 3 > servername_list_size )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
if( p[0] == MBEDTLS_TLS_EXT_SERVERNAME_HOSTNAME )
{
ret = ssl->conf->f_sni( ssl->conf->p_sni,
ssl, p + 3, hostname_len );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_sni_wrapper", ret );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_UNRECOGNIZED_NAME );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
return( 0 );
}
servername_list_size -= hostname_len + 3;
p += hostname_len + 3;
}
if( servername_list_size != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
return( 0 );
}
#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
static int ssl_parse_renegotiation_info( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
{
/* Check verify-data in constant-time. The length OTOH is no secret */
if( len != 1 + ssl->verify_data_len ||
buf[0] != ssl->verify_data_len ||
mbedtls_ssl_safer_memcmp( buf + 1, ssl->peer_verify_data,
ssl->verify_data_len ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-matching renegotiation info" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
}
else
#endif /* MBEDTLS_SSL_RENEGOTIATION */
{
if( len != 1 || buf[0] != 0x0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "non-zero length renegotiation info" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION;
}
return( 0 );
}
#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
/*
* Status of the implementation of signature-algorithms extension:
*
* Currently, we are only considering the signature-algorithm extension
* to pick a ciphersuite which allows us to send the ServerKeyExchange
* message with a signature-hash combination that the user allows.
*
* We do *not* check whether all certificates in our certificate
* chain are signed with an allowed signature-hash pair.
* This needs to be done at a later stage.
*
*/
static int ssl_parse_signature_algorithms_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
size_t sig_alg_list_size;
const unsigned char *p;
const unsigned char *end = buf + len;
mbedtls_md_type_t md_cur;
mbedtls_pk_type_t sig_cur;
if ( len < 2 ) {
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
sig_alg_list_size = ( ( buf[0] << 8 ) | ( buf[1] ) );
if( sig_alg_list_size + 2 != len ||
sig_alg_list_size % 2 != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
/* Currently we only guarantee signing the ServerKeyExchange message according
* to the constraints specified in this extension (see above), so it suffices
* to remember only one suitable hash for each possible signature algorithm.
*
* This will change when we also consider certificate signatures,
* in which case we will need to remember the whole signature-hash
* pair list from the extension.
*/
for( p = buf + 2; p < end; p += 2 )
{
/* Silently ignore unknown signature or hash algorithms. */
if( ( sig_cur = mbedtls_ssl_pk_alg_from_sig( p[1] ) ) == MBEDTLS_PK_NONE )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext"
" unknown sig alg encoding %d", p[1] ) );
continue;
}
/* Check if we support the hash the user proposes */
md_cur = mbedtls_ssl_md_alg_from_hash( p[0] );
if( md_cur == MBEDTLS_MD_NONE )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext:"
" unknown hash alg encoding %d", p[0] ) );
continue;
}
if( mbedtls_ssl_check_sig_hash( ssl, md_cur ) == 0 )
{
mbedtls_ssl_sig_hash_set_add( &ssl->handshake->hash_algs, sig_cur, md_cur );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext:"
" match sig %d and hash %d",
sig_cur, md_cur ) );
}
else
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext: "
"hash alg %d not supported", md_cur ) );
}
}
return( 0 );
}
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 &&
MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
static int ssl_parse_supported_elliptic_curves( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
size_t list_size, our_size;
const unsigned char *p;
const mbedtls_ecp_curve_info *curve_info, **curves;
if ( len < 2 ) {
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
list_size = ( ( buf[0] << 8 ) | ( buf[1] ) );
if( list_size + 2 != len ||
list_size % 2 != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
/* Should never happen unless client duplicates the extension */
if( ssl->handshake->curves != NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
/* Don't allow our peer to make us allocate too much memory,
* and leave room for a final 0 */
our_size = list_size / 2 + 1;
if( our_size > MBEDTLS_ECP_DP_MAX )
our_size = MBEDTLS_ECP_DP_MAX;
if( ( curves = mbedtls_calloc( our_size, sizeof( *curves ) ) ) == NULL )
{
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
}
ssl->handshake->curves = curves;
p = buf + 2;
while( list_size > 0 && our_size > 1 )
{
curve_info = mbedtls_ecp_curve_info_from_tls_id( ( p[0] << 8 ) | p[1] );
if( curve_info != NULL )
{
*curves++ = curve_info;
our_size--;
}
list_size -= 2;
p += 2;
}
return( 0 );
}
static int ssl_parse_supported_point_formats( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
size_t list_size;
const unsigned char *p;
if( len == 0 || (size_t)( buf[0] + 1 ) != len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
list_size = buf[0];
p = buf + 1;
while( list_size > 0 )
{
if( p[0] == MBEDTLS_ECP_PF_UNCOMPRESSED ||
p[0] == MBEDTLS_ECP_PF_COMPRESSED )
{
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C)
ssl->handshake->ecdh_ctx.point_format = p[0];
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
ssl->handshake->ecjpake_ctx.point_format = p[0];
#endif
MBEDTLS_SSL_DEBUG_MSG( 4, ( "point format selected: %d", p[0] ) );
return( 0 );
}
list_size--;
p++;
}
return( 0 );
}
#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ||
MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
static int ssl_parse_ecjpake_kkpp( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
int ret;
if( mbedtls_ecjpake_check( &ssl->handshake->ecjpake_ctx ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip ecjpake kkpp extension" ) );
return( 0 );
}
if( ( ret = mbedtls_ecjpake_read_round_one( &ssl->handshake->ecjpake_ctx,
buf, len ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_one", ret );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( ret );
}
/* Only mark the extension as OK when we're sure it is */
ssl->handshake->cli_exts |= MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK;
return( 0 );
}
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
static int ssl_parse_max_fragment_length_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
if( len != 1 || buf[0] >= MBEDTLS_SSL_MAX_FRAG_LEN_INVALID )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
ssl->session_negotiate->mfl_code = buf[0];
return( 0 );
}
#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
static int ssl_parse_truncated_hmac_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
if( len != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
((void) buf);
if( ssl->conf->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_ENABLED )
ssl->session_negotiate->trunc_hmac = MBEDTLS_SSL_TRUNC_HMAC_ENABLED;
return( 0 );
}
#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
static int ssl_parse_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
if( len != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
((void) buf);
if( ssl->conf->encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED &&
ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 )
{
ssl->session_negotiate->encrypt_then_mac = MBEDTLS_SSL_ETM_ENABLED;
}
return( 0 );
}
#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
static int ssl_parse_extended_ms_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf,
size_t len )
{
if( len != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
((void) buf);
if( ssl->conf->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED &&
ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 )
{
ssl->handshake->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED;
}
return( 0 );
}
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
static int ssl_parse_session_ticket_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t len )
{
int ret;
mbedtls_ssl_session session;
mbedtls_ssl_session_init( &session );
if( ssl->conf->f_ticket_parse == NULL ||
ssl->conf->f_ticket_write == NULL )
{
return( 0 );
}
/* Remember the client asked us to send a new ticket */
ssl->handshake->new_session_ticket = 1;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket length: %d", len ) );
if( len == 0 )
return( 0 );
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket rejected: renegotiating" ) );
return( 0 );
}
#endif /* MBEDTLS_SSL_RENEGOTIATION */
/*
* Failures are ok: just ignore the ticket and proceed.
*/
if( ( ret = ssl->conf->f_ticket_parse( ssl->conf->p_ticket, &session,
buf, len ) ) != 0 )
{
mbedtls_ssl_session_free( &session );
if( ret == MBEDTLS_ERR_SSL_INVALID_MAC )
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket is not authentic" ) );
else if( ret == MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED )
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ticket is expired" ) );
else
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_ticket_parse", ret );
return( 0 );
}
/*
* Keep the session ID sent by the client, since we MUST send it back to
* inform them we're accepting the ticket (RFC 5077 section 3.4)
*/
session.id_len = ssl->session_negotiate->id_len;
memcpy( &session.id, ssl->session_negotiate->id, session.id_len );
mbedtls_ssl_session_free( ssl->session_negotiate );
memcpy( ssl->session_negotiate, &session, sizeof( mbedtls_ssl_session ) );
/* Zeroize instead of free as we copied the content */
mbedtls_platform_zeroize( &session, sizeof( mbedtls_ssl_session ) );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "session successfully restored from ticket" ) );
ssl->handshake->resume = 1;
/* Don't send a new ticket after all, this one is OK */
ssl->handshake->new_session_ticket = 0;
return( 0 );
}
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
#if defined(MBEDTLS_SSL_ALPN)
static int ssl_parse_alpn_ext( mbedtls_ssl_context *ssl,
const unsigned char *buf, size_t len )
{
size_t list_len, cur_len, ours_len;
const unsigned char *theirs, *start, *end;
const char **ours;
/* If ALPN not configured, just ignore the extension */
if( ssl->conf->alpn_list == NULL )
return( 0 );
/*
* opaque ProtocolName<1..2^8-1>;
*
* struct {
* ProtocolName protocol_name_list<2..2^16-1>
* } ProtocolNameList;
*/
/* Min length is 2 (list_len) + 1 (name_len) + 1 (name) */
if( len < 4 )
{
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
list_len = ( buf[0] << 8 ) | buf[1];
if( list_len != len - 2 )
{
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
/*
* Validate peer's list (lengths)
*/
start = buf + 2;
end = buf + len;
for( theirs = start; theirs != end; theirs += cur_len )
{
cur_len = *theirs++;
/* Current identifier must fit in list */
if( cur_len > (size_t)( end - theirs ) )
{
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
/* Empty strings MUST NOT be included */
if( cur_len == 0 )
{
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
}
/*
* Use our order of preference
*/
for( ours = ssl->conf->alpn_list; *ours != NULL; ours++ )
{
ours_len = strlen( *ours );
for( theirs = start; theirs != end; theirs += cur_len )
{
cur_len = *theirs++;
if( cur_len == ours_len &&
memcmp( theirs, *ours, cur_len ) == 0 )
{
ssl->alpn_chosen = *ours;
return( 0 );
}
}
}
/* If we get there, no match was found */
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_NO_APPLICATION_PROTOCOL );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
#endif /* MBEDTLS_SSL_ALPN */
/*
* Auxiliary functions for ServerHello parsing and related actions
*/
#if defined(MBEDTLS_X509_CRT_PARSE_C)
/*
* Return 0 if the given key uses one of the acceptable curves, -1 otherwise
*/
#if defined(MBEDTLS_ECDSA_C)
static int ssl_check_key_curve( mbedtls_pk_context *pk,
const mbedtls_ecp_curve_info **curves )
{
const mbedtls_ecp_curve_info **crv = curves;
mbedtls_ecp_group_id grp_id = mbedtls_pk_ec( *pk )->grp.id;
while( *crv != NULL )
{
if( (*crv)->grp_id == grp_id )
return( 0 );
crv++;
}
return( -1 );
}
#endif /* MBEDTLS_ECDSA_C */
/*
* Try picking a certificate for this ciphersuite,
* return 0 on success and -1 on failure.
*/
static int ssl_pick_cert( mbedtls_ssl_context *ssl,
const mbedtls_ssl_ciphersuite_t * ciphersuite_info )
{
mbedtls_ssl_key_cert *cur, *list, *fallback = NULL;
mbedtls_pk_type_t pk_alg =
mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info );
uint32_t flags;
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
if( ssl->handshake->sni_key_cert != NULL )
list = ssl->handshake->sni_key_cert;
else
#endif
list = ssl->conf->key_cert;
if( pk_alg == MBEDTLS_PK_NONE )
return( 0 );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite requires certificate" ) );
if( list == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server has no certificate" ) );
return( -1 );
}
for( cur = list; cur != NULL; cur = cur->next )
{
MBEDTLS_SSL_DEBUG_CRT( 3, "candidate certificate chain, certificate",
cur->cert );
if( ! mbedtls_pk_can_do( &cur->cert->pk, pk_alg ) )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: key type" ) );
continue;
}
/*
* This avoids sending the client a cert it'll reject based on
* keyUsage or other extensions.
*
* It also allows the user to provision different certificates for
* different uses based on keyUsage, eg if they want to avoid signing
* and decrypting with the same RSA key.
*/
if( mbedtls_ssl_check_cert_usage( cur->cert, ciphersuite_info,
MBEDTLS_SSL_IS_SERVER, &flags ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: "
"(extended) key usage extension" ) );
continue;
}
#if defined(MBEDTLS_ECDSA_C)
if( pk_alg == MBEDTLS_PK_ECDSA &&
ssl_check_key_curve( &cur->cert->pk, ssl->handshake->curves ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate mismatch: elliptic curve" ) );
continue;
}
#endif
/*
* Try to select a SHA-1 certificate for pre-1.2 clients, but still
* present them a SHA-higher cert rather than failing if it's the only
* one we got that satisfies the other conditions.
*/
if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 &&
cur->cert->sig_md != MBEDTLS_MD_SHA1 )
{
if( fallback == NULL )
fallback = cur;
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "certificate not preferred: "
"sha-2 with pre-TLS 1.2 client" ) );
continue;
}
}
/* If we get there, we got a winner */
break;
}
if( cur == NULL )
cur = fallback;
/* Do not update ssl->handshake->key_cert unless there is a match */
if( cur != NULL )
{
ssl->handshake->key_cert = cur;
MBEDTLS_SSL_DEBUG_CRT( 3, "selected certificate chain, certificate",
ssl->handshake->key_cert->cert );
return( 0 );
}
return( -1 );
}
#endif /* MBEDTLS_X509_CRT_PARSE_C */
/*
* Check if a given ciphersuite is suitable for use with our config/keys/etc
* Sets ciphersuite_info only if the suite matches.
*/
static int ssl_ciphersuite_match( mbedtls_ssl_context *ssl, int suite_id,
const mbedtls_ssl_ciphersuite_t **ciphersuite_info )
{
const mbedtls_ssl_ciphersuite_t *suite_info;
#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
mbedtls_pk_type_t sig_type;
#endif
suite_info = mbedtls_ssl_ciphersuite_from_id( suite_id );
if( suite_info == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "trying ciphersuite: %s", suite_info->name ) );
if( suite_info->min_minor_ver > ssl->minor_ver ||
suite_info->max_minor_ver < ssl->minor_ver )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: version" ) );
return( 0 );
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
( suite_info->flags & MBEDTLS_CIPHERSUITE_NODTLS ) )
return( 0 );
#endif
#if defined(MBEDTLS_ARC4_C)
if( ssl->conf->arc4_disabled == MBEDTLS_SSL_ARC4_DISABLED &&
suite_info->cipher == MBEDTLS_CIPHER_ARC4_128 )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: rc4" ) );
return( 0 );
}
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
if( suite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE &&
( ssl->handshake->cli_exts & MBEDTLS_TLS_EXT_ECJPAKE_KKPP_OK ) == 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: ecjpake "
"not configured or ext missing" ) );
return( 0 );
}
#endif
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C)
if( mbedtls_ssl_ciphersuite_uses_ec( suite_info ) &&
( ssl->handshake->curves == NULL ||
ssl->handshake->curves[0] == NULL ) )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: "
"no common elliptic curve" ) );
return( 0 );
}
#endif
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
/* If the ciphersuite requires a pre-shared key and we don't
* have one, skip it now rather than failing later */
if( mbedtls_ssl_ciphersuite_uses_psk( suite_info ) &&
ssl->conf->f_psk == NULL &&
( ssl->conf->psk == NULL || ssl->conf->psk_identity == NULL ||
ssl->conf->psk_identity_len == 0 || ssl->conf->psk_len == 0 ) )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: no pre-shared key" ) );
return( 0 );
}
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
/* If the ciphersuite requires signing, check whether
* a suitable hash algorithm is present. */
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
{
sig_type = mbedtls_ssl_get_ciphersuite_sig_alg( suite_info );
if( sig_type != MBEDTLS_PK_NONE &&
mbedtls_ssl_sig_hash_set_find( &ssl->handshake->hash_algs, sig_type ) == MBEDTLS_MD_NONE )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: no suitable hash algorithm "
"for signature algorithm %d", sig_type ) );
return( 0 );
}
}
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 &&
MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
#if defined(MBEDTLS_X509_CRT_PARSE_C)
/*
* Final check: if ciphersuite requires us to have a
* certificate/key of a particular type:
* - select the appropriate certificate if we have one, or
* - try the next ciphersuite if we don't
* This must be done last since we modify the key_cert list.
*/
if( ssl_pick_cert( ssl, suite_info ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite mismatch: "
"no suitable certificate" ) );
return( 0 );
}
#endif
*ciphersuite_info = suite_info;
return( 0 );
}
#if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO)
static int ssl_parse_client_hello_v2( mbedtls_ssl_context *ssl )
{
int ret, got_common_suite;
unsigned int i, j;
size_t n;
unsigned int ciph_len, sess_len, chal_len;
unsigned char *buf, *p;
const int *ciphersuites;
const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse client hello v2" ) );
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "client hello v2 illegal for renegotiation" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
#endif /* MBEDTLS_SSL_RENEGOTIATION */
buf = ssl->in_hdr;
MBEDTLS_SSL_DEBUG_BUF( 4, "record header", buf, 5 );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v2, message type: %d",
buf[2] ) );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v2, message len.: %d",
( ( buf[0] & 0x7F ) << 8 ) | buf[1] ) );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v2, max. version: [%d:%d]",
buf[3], buf[4] ) );
/*
* SSLv2 Client Hello
*
* Record layer:
* 0 . 1 message length
*
* SSL layer:
* 2 . 2 message type
* 3 . 4 protocol version
*/
if( buf[2] != MBEDTLS_SSL_HS_CLIENT_HELLO ||
buf[3] != MBEDTLS_SSL_MAJOR_VERSION_3 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
n = ( ( buf[0] << 8 ) | buf[1] ) & 0x7FFF;
if( n < 17 || n > 512 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
ssl->major_ver = MBEDTLS_SSL_MAJOR_VERSION_3;
ssl->minor_ver = ( buf[4] <= ssl->conf->max_minor_ver )
? buf[4] : ssl->conf->max_minor_ver;
if( ssl->minor_ver < ssl->conf->min_minor_ver )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "client only supports ssl smaller than minimum"
" [%d:%d] < [%d:%d]",
ssl->major_ver, ssl->minor_ver,
ssl->conf->min_major_ver, ssl->conf->min_minor_ver ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION );
}
ssl->handshake->max_major_ver = buf[3];
ssl->handshake->max_minor_ver = buf[4];
if( ( ret = mbedtls_ssl_fetch_input( ssl, 2 + n ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret );
return( ret );
}
ssl->handshake->update_checksum( ssl, buf + 2, n );
buf = ssl->in_msg;
n = ssl->in_left - 5;
/*
* 0 . 1 ciphersuitelist length
* 2 . 3 session id length
* 4 . 5 challenge length
* 6 . .. ciphersuitelist
* .. . .. session id
* .. . .. challenge
*/
MBEDTLS_SSL_DEBUG_BUF( 4, "record contents", buf, n );
ciph_len = ( buf[0] << 8 ) | buf[1];
sess_len = ( buf[2] << 8 ) | buf[3];
chal_len = ( buf[4] << 8 ) | buf[5];
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciph_len: %d, sess_len: %d, chal_len: %d",
ciph_len, sess_len, chal_len ) );
/*
* Make sure each parameter length is valid
*/
if( ciph_len < 3 || ( ciph_len % 3 ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
if( sess_len > 32 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
if( chal_len < 8 || chal_len > 32 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
if( n != 6 + ciph_len + sess_len + chal_len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, ciphersuitelist",
buf + 6, ciph_len );
MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, session id",
buf + 6 + ciph_len, sess_len );
MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, challenge",
buf + 6 + ciph_len + sess_len, chal_len );
p = buf + 6 + ciph_len;
ssl->session_negotiate->id_len = sess_len;
memset( ssl->session_negotiate->id, 0,
sizeof( ssl->session_negotiate->id ) );
memcpy( ssl->session_negotiate->id, p, ssl->session_negotiate->id_len );
p += sess_len;
memset( ssl->handshake->randbytes, 0, 64 );
memcpy( ssl->handshake->randbytes + 32 - chal_len, p, chal_len );
/*
* Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV
*/
for( i = 0, p = buf + 6; i < ciph_len; i += 3, p += 3 )
{
if( p[0] == 0 && p[1] == 0 && p[2] == MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "received TLS_EMPTY_RENEGOTIATION_INFO " ) );
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "received RENEGOTIATION SCSV "
"during renegotiation" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
#endif /* MBEDTLS_SSL_RENEGOTIATION */
ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION;
break;
}
}
#if defined(MBEDTLS_SSL_FALLBACK_SCSV)
for( i = 0, p = buf + 6; i < ciph_len; i += 3, p += 3 )
{
if( p[0] == 0 &&
p[1] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE >> 8 ) & 0xff ) &&
p[2] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE ) & 0xff ) )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "received FALLBACK_SCSV" ) );
if( ssl->minor_ver < ssl->conf->max_minor_ver )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "inapropriate fallback" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
break;
}
}
#endif /* MBEDTLS_SSL_FALLBACK_SCSV */
got_common_suite = 0;
ciphersuites = ssl->conf->ciphersuite_list[ssl->minor_ver];
ciphersuite_info = NULL;
#if defined(MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
for( j = 0, p = buf + 6; j < ciph_len; j += 3, p += 3 )
for( i = 0; ciphersuites[i] != 0; i++ )
#else
for( i = 0; ciphersuites[i] != 0; i++ )
for( j = 0, p = buf + 6; j < ciph_len; j += 3, p += 3 )
#endif
{
if( p[0] != 0 ||
p[1] != ( ( ciphersuites[i] >> 8 ) & 0xFF ) ||
p[2] != ( ( ciphersuites[i] ) & 0xFF ) )
continue;
got_common_suite = 1;
if( ( ret = ssl_ciphersuite_match( ssl, ciphersuites[i],
&ciphersuite_info ) ) != 0 )
return( ret );
if( ciphersuite_info != NULL )
goto have_ciphersuite_v2;
}
if( got_common_suite )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "got ciphersuites in common, "
"but none of them usable" ) );
return( MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE );
}
else
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no ciphersuites in common" ) );
return( MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN );
}
have_ciphersuite_v2:
MBEDTLS_SSL_DEBUG_MSG( 2, ( "selected ciphersuite: %s", ciphersuite_info->name ) );
ssl->session_negotiate->ciphersuite = ciphersuites[i];
ssl->transform_negotiate->ciphersuite_info = ciphersuite_info;
/*
* SSLv2 Client Hello relevant renegotiation security checks
*/
if( ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation, breaking off handshake" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
ssl->in_left = 0;
ssl->state++;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse client hello v2" ) );
return( 0 );
}
#endif /* MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO */
/* This function doesn't alert on errors that happen early during
ClientHello parsing because they might indicate that the client is
not talking SSL/TLS at all and would not understand our alert. */
static int ssl_parse_client_hello( mbedtls_ssl_context *ssl )
{
int ret, got_common_suite;
size_t i, j;
size_t ciph_offset, comp_offset, ext_offset;
size_t msg_len, ciph_len, sess_len, comp_len, ext_len;
#if defined(MBEDTLS_SSL_PROTO_DTLS)
size_t cookie_offset, cookie_len;
#endif
unsigned char *buf, *p, *ext;
#if defined(MBEDTLS_SSL_RENEGOTIATION)
int renegotiation_info_seen = 0;
#endif
int handshake_failure = 0;
const int *ciphersuites;
const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
int major, minor;
/* If there is no signature-algorithm extension present,
* we need to fall back to the default values for allowed
* signature-hash pairs. */
#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
int sig_hash_alg_ext_present = 0;
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 &&
MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse client hello" ) );
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
read_record_header:
#endif
/*
* If renegotiating, then the input was read with mbedtls_ssl_read_record(),
* otherwise read it ourselves manually in order to support SSLv2
* ClientHello, which doesn't use the same record layer format.
*/
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE )
#endif
{
if( ( ret = mbedtls_ssl_fetch_input( ssl, 5 ) ) != 0 )
{
/* No alert on a read error. */
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret );
return( ret );
}
}
buf = ssl->in_hdr;
#if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO)
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_STREAM )
#endif
if( ( buf[0] & 0x80 ) != 0 )
return( ssl_parse_client_hello_v2( ssl ) );
#endif
MBEDTLS_SSL_DEBUG_BUF( 4, "record header", buf, mbedtls_ssl_hdr_len( ssl ) );
/*
* SSLv3/TLS Client Hello
*
* Record layer:
* 0 . 0 message type
* 1 . 2 protocol version
* 3 . 11 DTLS: epoch + record sequence number
* 3 . 4 message length
*/
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, message type: %d",
buf[0] ) );
if( buf[0] != MBEDTLS_SSL_MSG_HANDSHAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, message len.: %d",
( ssl->in_len[0] << 8 ) | ssl->in_len[1] ) );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, protocol version: [%d:%d]",
buf[1], buf[2] ) );
mbedtls_ssl_read_version( &major, &minor, ssl->conf->transport, buf + 1 );
/* According to RFC 5246 Appendix E.1, the version here is typically
* "{03,00}, the lowest version number supported by the client, [or] the
* value of ClientHello.client_version", so the only meaningful check here
* is the major version shouldn't be less than 3 */
if( major < MBEDTLS_SSL_MAJOR_VERSION_3 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
/* For DTLS if this is the initial handshake, remember the client sequence
* number to use it in our next message (RFC 6347 4.2.1) */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM
#if defined(MBEDTLS_SSL_RENEGOTIATION)
&& ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE
#endif
)
{
/* Epoch should be 0 for initial handshakes */
if( ssl->in_ctr[0] != 0 || ssl->in_ctr[1] != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
memcpy( ssl->cur_out_ctr + 2, ssl->in_ctr + 2, 6 );
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
if( mbedtls_ssl_dtls_replay_check( ssl ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "replayed record, discarding" ) );
ssl->next_record_offset = 0;
ssl->in_left = 0;
goto read_record_header;
}
/* No MAC to check yet, so we can update right now */
mbedtls_ssl_dtls_replay_update( ssl );
#endif
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
msg_len = ( ssl->in_len[0] << 8 ) | ssl->in_len[1];
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
{
/* Set by mbedtls_ssl_read_record() */
msg_len = ssl->in_hslen;
}
else
#endif
{
if( msg_len > MBEDTLS_SSL_IN_CONTENT_LEN )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
if( ( ret = mbedtls_ssl_fetch_input( ssl,
mbedtls_ssl_hdr_len( ssl ) + msg_len ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret );
return( ret );
}
/* Done reading this record, get ready for the next one */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
ssl->next_record_offset = msg_len + mbedtls_ssl_hdr_len( ssl );
else
#endif
ssl->in_left = 0;
}
buf = ssl->in_msg;
MBEDTLS_SSL_DEBUG_BUF( 4, "record contents", buf, msg_len );
ssl->handshake->update_checksum( ssl, buf, msg_len );
/*
* Handshake layer:
* 0 . 0 handshake type
* 1 . 3 handshake length
* 4 . 5 DTLS only: message seqence number
* 6 . 8 DTLS only: fragment offset
* 9 . 11 DTLS only: fragment length
*/
if( msg_len < mbedtls_ssl_hs_hdr_len( ssl ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, handshake type: %d", buf[0] ) );
if( buf[0] != MBEDTLS_SSL_HS_CLIENT_HELLO )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, handshake len.: %d",
( buf[1] << 16 ) | ( buf[2] << 8 ) | buf[3] ) );
/* We don't support fragmentation of ClientHello (yet?) */
if( buf[1] != 0 ||
msg_len != mbedtls_ssl_hs_hdr_len( ssl ) + ( ( buf[2] << 8 ) | buf[3] ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
/*
* Copy the client's handshake message_seq on initial handshakes,
* check sequence number on renego.
*/
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
{
/* This couldn't be done in ssl_prepare_handshake_record() */
unsigned int cli_msg_seq = ( ssl->in_msg[4] << 8 ) |
ssl->in_msg[5];
if( cli_msg_seq != ssl->handshake->in_msg_seq )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message_seq: "
"%d (expected %d)", cli_msg_seq,
ssl->handshake->in_msg_seq ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
ssl->handshake->in_msg_seq++;
}
else
#endif
{
unsigned int cli_msg_seq = ( ssl->in_msg[4] << 8 ) |
ssl->in_msg[5];
ssl->handshake->out_msg_seq = cli_msg_seq;
ssl->handshake->in_msg_seq = cli_msg_seq + 1;
}
/*
* For now we don't support fragmentation, so make sure
* fragment_offset == 0 and fragment_length == length
*/
if( ssl->in_msg[6] != 0 || ssl->in_msg[7] != 0 || ssl->in_msg[8] != 0 ||
memcmp( ssl->in_msg + 1, ssl->in_msg + 9, 3 ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "ClientHello fragmentation not supported" ) );
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
buf += mbedtls_ssl_hs_hdr_len( ssl );
msg_len -= mbedtls_ssl_hs_hdr_len( ssl );
/*
* ClientHello layer:
* 0 . 1 protocol version
* 2 . 33 random bytes (starting with 4 bytes of Unix time)
* 34 . 35 session id length (1 byte)
* 35 . 34+x session id
* 35+x . 35+x DTLS only: cookie length (1 byte)
* 36+x . .. DTLS only: cookie
* .. . .. ciphersuite list length (2 bytes)
* .. . .. ciphersuite list
* .. . .. compression alg. list length (1 byte)
* .. . .. compression alg. list
* .. . .. extensions length (2 bytes, optional)
* .. . .. extensions (optional)
*/
/*
* Minimal length (with everything empty and extensions ommitted) is
* 2 + 32 + 1 + 2 + 1 = 38 bytes. Check that first, so that we can
* read at least up to session id length without worrying.
*/
if( msg_len < 38 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
/*
* Check and save the protocol version
*/
MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, version", buf, 2 );
mbedtls_ssl_read_version( &ssl->major_ver, &ssl->minor_ver,
ssl->conf->transport, buf );
ssl->handshake->max_major_ver = ssl->major_ver;
ssl->handshake->max_minor_ver = ssl->minor_ver;
if( ssl->major_ver < ssl->conf->min_major_ver ||
ssl->minor_ver < ssl->conf->min_minor_ver )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "client only supports ssl smaller than minimum"
" [%d:%d] < [%d:%d]",
ssl->major_ver, ssl->minor_ver,
ssl->conf->min_major_ver, ssl->conf->min_minor_ver ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
return( MBEDTLS_ERR_SSL_BAD_HS_PROTOCOL_VERSION );
}
if( ssl->major_ver > ssl->conf->max_major_ver )
{
ssl->major_ver = ssl->conf->max_major_ver;
ssl->minor_ver = ssl->conf->max_minor_ver;
}
else if( ssl->minor_ver > ssl->conf->max_minor_ver )
ssl->minor_ver = ssl->conf->max_minor_ver;
/*
* Save client random (inc. Unix time)
*/
MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, random bytes", buf + 2, 32 );
memcpy( ssl->handshake->randbytes, buf + 2, 32 );
/*
* Check the session ID length and save session ID
*/
sess_len = buf[34];
if( sess_len > sizeof( ssl->session_negotiate->id ) ||
sess_len + 34 + 2 > msg_len ) /* 2 for cipherlist length field */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, session id", buf + 35, sess_len );
ssl->session_negotiate->id_len = sess_len;
memset( ssl->session_negotiate->id, 0,
sizeof( ssl->session_negotiate->id ) );
memcpy( ssl->session_negotiate->id, buf + 35,
ssl->session_negotiate->id_len );
/*
* Check the cookie length and content
*/
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
cookie_offset = 35 + sess_len;
cookie_len = buf[cookie_offset];
if( cookie_offset + 1 + cookie_len + 2 > msg_len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_PROTOCOL_VERSION );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, cookie",
buf + cookie_offset + 1, cookie_len );
#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
if( ssl->conf->f_cookie_check != NULL
#if defined(MBEDTLS_SSL_RENEGOTIATION)
&& ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE
#endif
)
{
if( ssl->conf->f_cookie_check( ssl->conf->p_cookie,
buf + cookie_offset + 1, cookie_len,
ssl->cli_id, ssl->cli_id_len ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "cookie verification failed" ) );
ssl->handshake->verify_cookie_len = 1;
}
else
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "cookie verification passed" ) );
ssl->handshake->verify_cookie_len = 0;
}
}
else
#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
{
/* We know we didn't send a cookie, so it should be empty */
if( cookie_len != 0 )
{
/* This may be an attacker's probe, so don't send an alert */
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "cookie verification skipped" ) );
}
/*
* Check the ciphersuitelist length (will be parsed later)
*/
ciph_offset = cookie_offset + 1 + cookie_len;
}
else
#endif /* MBEDTLS_SSL_PROTO_DTLS */
ciph_offset = 35 + sess_len;
ciph_len = ( buf[ciph_offset + 0] << 8 )
| ( buf[ciph_offset + 1] );
if( ciph_len < 2 ||
ciph_len + 2 + ciph_offset + 1 > msg_len || /* 1 for comp. alg. len */
( ciph_len % 2 ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, ciphersuitelist",
buf + ciph_offset + 2, ciph_len );
/*
* Check the compression algorithms length and pick one
*/
comp_offset = ciph_offset + 2 + ciph_len;
comp_len = buf[comp_offset];
if( comp_len < 1 ||
comp_len > 16 ||
comp_len + comp_offset + 1 > msg_len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
MBEDTLS_SSL_DEBUG_BUF( 3, "client hello, compression",
buf + comp_offset + 1, comp_len );
ssl->session_negotiate->compression = MBEDTLS_SSL_COMPRESS_NULL;
#if defined(MBEDTLS_ZLIB_SUPPORT)
for( i = 0; i < comp_len; ++i )
{
if( buf[comp_offset + 1 + i] == MBEDTLS_SSL_COMPRESS_DEFLATE )
{
ssl->session_negotiate->compression = MBEDTLS_SSL_COMPRESS_DEFLATE;
break;
}
}
#endif
/* See comments in ssl_write_client_hello() */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
ssl->session_negotiate->compression = MBEDTLS_SSL_COMPRESS_NULL;
#endif
/* Do not parse the extensions if the protocol is SSLv3 */
#if defined(MBEDTLS_SSL_PROTO_SSL3)
if( ( ssl->major_ver != 3 ) || ( ssl->minor_ver != 0 ) )
{
#endif
/*
* Check the extension length
*/
ext_offset = comp_offset + 1 + comp_len;
if( msg_len > ext_offset )
{
if( msg_len < ext_offset + 2 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
ext_len = ( buf[ext_offset + 0] << 8 )
| ( buf[ext_offset + 1] );
if( ( ext_len > 0 && ext_len < 4 ) ||
msg_len != ext_offset + 2 + ext_len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
}
else
ext_len = 0;
ext = buf + ext_offset + 2;
MBEDTLS_SSL_DEBUG_BUF( 3, "client hello extensions", ext, ext_len );
while( ext_len != 0 )
{
unsigned int ext_id;
unsigned int ext_size;
if ( ext_len < 4 ) {
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
ext_id = ( ( ext[0] << 8 ) | ( ext[1] ) );
ext_size = ( ( ext[2] << 8 ) | ( ext[3] ) );
if( ext_size + 4 > ext_len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
switch( ext_id )
{
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
case MBEDTLS_TLS_EXT_SERVERNAME:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found ServerName extension" ) );
if( ssl->conf->f_sni == NULL )
break;
ret = ssl_parse_servername_ext( ssl, ext + 4, ext_size );
if( ret != 0 )
return( ret );
break;
#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
case MBEDTLS_TLS_EXT_RENEGOTIATION_INFO:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found renegotiation extension" ) );
#if defined(MBEDTLS_SSL_RENEGOTIATION)
renegotiation_info_seen = 1;
#endif
ret = ssl_parse_renegotiation_info( ssl, ext + 4, ext_size );
if( ret != 0 )
return( ret );
break;
#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
case MBEDTLS_TLS_EXT_SIG_ALG:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found signature_algorithms extension" ) );
ret = ssl_parse_signature_algorithms_ext( ssl, ext + 4, ext_size );
if( ret != 0 )
return( ret );
sig_hash_alg_ext_present = 1;
break;
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 &&
MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
case MBEDTLS_TLS_EXT_SUPPORTED_ELLIPTIC_CURVES:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found supported elliptic curves extension" ) );
ret = ssl_parse_supported_elliptic_curves( ssl, ext + 4, ext_size );
if( ret != 0 )
return( ret );
break;
case MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found supported point formats extension" ) );
ssl->handshake->cli_exts |= MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT;
ret = ssl_parse_supported_point_formats( ssl, ext + 4, ext_size );
if( ret != 0 )
return( ret );
break;
#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C ||
MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
case MBEDTLS_TLS_EXT_ECJPAKE_KKPP:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found ecjpake kkpp extension" ) );
ret = ssl_parse_ecjpake_kkpp( ssl, ext + 4, ext_size );
if( ret != 0 )
return( ret );
break;
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
case MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found max fragment length extension" ) );
ret = ssl_parse_max_fragment_length_ext( ssl, ext + 4, ext_size );
if( ret != 0 )
return( ret );
break;
#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
case MBEDTLS_TLS_EXT_TRUNCATED_HMAC:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found truncated hmac extension" ) );
ret = ssl_parse_truncated_hmac_ext( ssl, ext + 4, ext_size );
if( ret != 0 )
return( ret );
break;
#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
case MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found encrypt then mac extension" ) );
ret = ssl_parse_encrypt_then_mac_ext( ssl, ext + 4, ext_size );
if( ret != 0 )
return( ret );
break;
#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
case MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found extended master secret extension" ) );
ret = ssl_parse_extended_ms_ext( ssl, ext + 4, ext_size );
if( ret != 0 )
return( ret );
break;
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
case MBEDTLS_TLS_EXT_SESSION_TICKET:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found session ticket extension" ) );
ret = ssl_parse_session_ticket_ext( ssl, ext + 4, ext_size );
if( ret != 0 )
return( ret );
break;
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
#if defined(MBEDTLS_SSL_ALPN)
case MBEDTLS_TLS_EXT_ALPN:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found alpn extension" ) );
ret = ssl_parse_alpn_ext( ssl, ext + 4, ext_size );
if( ret != 0 )
return( ret );
break;
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
default:
MBEDTLS_SSL_DEBUG_MSG( 3, ( "unknown extension found: %d (ignoring)",
ext_id ) );
}
ext_len -= 4 + ext_size;
ext += 4 + ext_size;
if( ext_len > 0 && ext_len < 4 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client hello message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
}
#if defined(MBEDTLS_SSL_PROTO_SSL3)
}
#endif
#if defined(MBEDTLS_SSL_FALLBACK_SCSV)
for( i = 0, p = buf + ciph_offset + 2; i < ciph_len; i += 2, p += 2 )
{
if( p[0] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE >> 8 ) & 0xff ) &&
p[1] == (unsigned char)( ( MBEDTLS_SSL_FALLBACK_SCSV_VALUE ) & 0xff ) )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "received FALLBACK_SCSV" ) );
if( ssl->minor_ver < ssl->conf->max_minor_ver )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "inapropriate fallback" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_INAPROPRIATE_FALLBACK );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
break;
}
}
#endif /* MBEDTLS_SSL_FALLBACK_SCSV */
#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
/*
* Try to fall back to default hash SHA1 if the client
* hasn't provided any preferred signature-hash combinations.
*/
if( sig_hash_alg_ext_present == 0 )
{
mbedtls_md_type_t md_default = MBEDTLS_MD_SHA1;
if( mbedtls_ssl_check_sig_hash( ssl, md_default ) != 0 )
md_default = MBEDTLS_MD_NONE;
mbedtls_ssl_sig_hash_set_const_hash( &ssl->handshake->hash_algs, md_default );
}
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 &&
MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
/*
* Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV
*/
for( i = 0, p = buf + ciph_offset + 2; i < ciph_len; i += 2, p += 2 )
{
if( p[0] == 0 && p[1] == MBEDTLS_SSL_EMPTY_RENEGOTIATION_INFO )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "received TLS_EMPTY_RENEGOTIATION_INFO " ) );
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "received RENEGOTIATION SCSV "
"during renegotiation" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
#endif
ssl->secure_renegotiation = MBEDTLS_SSL_SECURE_RENEGOTIATION;
break;
}
}
/*
* Renegotiation security checks
*/
if( ssl->secure_renegotiation != MBEDTLS_SSL_SECURE_RENEGOTIATION &&
ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_BREAK_HANDSHAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation, breaking off handshake" ) );
handshake_failure = 1;
}
#if defined(MBEDTLS_SSL_RENEGOTIATION)
else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
ssl->secure_renegotiation == MBEDTLS_SSL_SECURE_RENEGOTIATION &&
renegotiation_info_seen == 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension missing (secure)" ) );
handshake_failure = 1;
}
else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
ssl->conf->allow_legacy_renegotiation == MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "legacy renegotiation not allowed" ) );
handshake_failure = 1;
}
else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
renegotiation_info_seen == 1 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation_info extension present (legacy)" ) );
handshake_failure = 1;
}
#endif /* MBEDTLS_SSL_RENEGOTIATION */
if( handshake_failure == 1 )
{
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
/*
* Search for a matching ciphersuite
* (At the end because we need information from the EC-based extensions
* and certificate from the SNI callback triggered by the SNI extension.)
*/
got_common_suite = 0;
ciphersuites = ssl->conf->ciphersuite_list[ssl->minor_ver];
ciphersuite_info = NULL;
#if defined(MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
for( j = 0, p = buf + ciph_offset + 2; j < ciph_len; j += 2, p += 2 )
for( i = 0; ciphersuites[i] != 0; i++ )
#else
for( i = 0; ciphersuites[i] != 0; i++ )
for( j = 0, p = buf + ciph_offset + 2; j < ciph_len; j += 2, p += 2 )
#endif
{
if( p[0] != ( ( ciphersuites[i] >> 8 ) & 0xFF ) ||
p[1] != ( ( ciphersuites[i] ) & 0xFF ) )
continue;
got_common_suite = 1;
if( ( ret = ssl_ciphersuite_match( ssl, ciphersuites[i],
&ciphersuite_info ) ) != 0 )
return( ret );
if( ciphersuite_info != NULL )
goto have_ciphersuite;
}
if( got_common_suite )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "got ciphersuites in common, "
"but none of them usable" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_NO_USABLE_CIPHERSUITE );
}
else
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no ciphersuites in common" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN );
}
have_ciphersuite:
MBEDTLS_SSL_DEBUG_MSG( 2, ( "selected ciphersuite: %s", ciphersuite_info->name ) );
ssl->session_negotiate->ciphersuite = ciphersuites[i];
ssl->transform_negotiate->ciphersuite_info = ciphersuite_info;
ssl->state++;
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
mbedtls_ssl_recv_flight_completed( ssl );
#endif
/* Debugging-only output for testsuite */
#if defined(MBEDTLS_DEBUG_C) && \
defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
{
mbedtls_pk_type_t sig_alg = mbedtls_ssl_get_ciphersuite_sig_alg( ciphersuite_info );
if( sig_alg != MBEDTLS_PK_NONE )
{
mbedtls_md_type_t md_alg = mbedtls_ssl_sig_hash_set_find( &ssl->handshake->hash_algs,
sig_alg );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "client hello v3, signature_algorithm ext: %d",
mbedtls_ssl_hash_from_md_alg( md_alg ) ) );
}
else
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "no hash algorithm for signature algorithm "
"%d - should not happen", sig_alg ) );
}
}
#endif
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse client hello" ) );
return( 0 );
}
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
static void ssl_write_truncated_hmac_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
unsigned char *p = buf;
if( ssl->session_negotiate->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_DISABLED )
{
*olen = 0;
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding truncated hmac extension" ) );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_TRUNCATED_HMAC ) & 0xFF );
*p++ = 0x00;
*p++ = 0x00;
*olen = 4;
}
#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
static void ssl_write_encrypt_then_mac_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
unsigned char *p = buf;
const mbedtls_ssl_ciphersuite_t *suite = NULL;
const mbedtls_cipher_info_t *cipher = NULL;
if( ssl->session_negotiate->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED ||
ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
{
*olen = 0;
return;
}
/*
* RFC 7366: "If a server receives an encrypt-then-MAC request extension
* from a client and then selects a stream or Authenticated Encryption
* with Associated Data (AEAD) ciphersuite, it MUST NOT send an
* encrypt-then-MAC response extension back to the client."
*/
if( ( suite = mbedtls_ssl_ciphersuite_from_id(
ssl->session_negotiate->ciphersuite ) ) == NULL ||
( cipher = mbedtls_cipher_info_from_type( suite->cipher ) ) == NULL ||
cipher->mode != MBEDTLS_MODE_CBC )
{
*olen = 0;
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding encrypt then mac extension" ) );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ENCRYPT_THEN_MAC ) & 0xFF );
*p++ = 0x00;
*p++ = 0x00;
*olen = 4;
}
#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
static void ssl_write_extended_ms_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
unsigned char *p = buf;
if( ssl->handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_DISABLED ||
ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
{
*olen = 0;
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding extended master secret "
"extension" ) );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_EXTENDED_MASTER_SECRET ) & 0xFF );
*p++ = 0x00;
*p++ = 0x00;
*olen = 4;
}
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
static void ssl_write_session_ticket_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
unsigned char *p = buf;
if( ssl->handshake->new_session_ticket == 0 )
{
*olen = 0;
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding session ticket extension" ) );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SESSION_TICKET ) & 0xFF );
*p++ = 0x00;
*p++ = 0x00;
*olen = 4;
}
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
static void ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
unsigned char *p = buf;
if( ssl->secure_renegotiation != MBEDTLS_SSL_SECURE_RENEGOTIATION )
{
*olen = 0;
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, secure renegotiation extension" ) );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_RENEGOTIATION_INFO ) & 0xFF );
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->renego_status != MBEDTLS_SSL_INITIAL_HANDSHAKE )
{
*p++ = 0x00;
*p++ = ( ssl->verify_data_len * 2 + 1 ) & 0xFF;
*p++ = ssl->verify_data_len * 2 & 0xFF;
memcpy( p, ssl->peer_verify_data, ssl->verify_data_len );
p += ssl->verify_data_len;
memcpy( p, ssl->own_verify_data, ssl->verify_data_len );
p += ssl->verify_data_len;
}
else
#endif /* MBEDTLS_SSL_RENEGOTIATION */
{
*p++ = 0x00;
*p++ = 0x01;
*p++ = 0x00;
}
*olen = p - buf;
}
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
static void ssl_write_max_fragment_length_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
unsigned char *p = buf;
if( ssl->session_negotiate->mfl_code == MBEDTLS_SSL_MAX_FRAG_LEN_NONE )
{
*olen = 0;
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, max_fragment_length extension" ) );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_MAX_FRAGMENT_LENGTH ) & 0xFF );
*p++ = 0x00;
*p++ = 1;
*p++ = ssl->session_negotiate->mfl_code;
*olen = 5;
}
#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
static void ssl_write_supported_point_formats_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
unsigned char *p = buf;
((void) ssl);
if( ( ssl->handshake->cli_exts &
MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS_PRESENT ) == 0 )
{
*olen = 0;
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, supported_point_formats extension" ) );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_SUPPORTED_POINT_FORMATS ) & 0xFF );
*p++ = 0x00;
*p++ = 2;
*p++ = 1;
*p++ = MBEDTLS_ECP_PF_UNCOMPRESSED;
*olen = 6;
}
#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C || MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
static void ssl_write_ecjpake_kkpp_ext( mbedtls_ssl_context *ssl,
unsigned char *buf,
size_t *olen )
{
int ret;
unsigned char *p = buf;
const unsigned char *end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
size_t kkpp_len;
*olen = 0;
/* Skip costly computation if not needed */
if( ssl->transform_negotiate->ciphersuite_info->key_exchange !=
MBEDTLS_KEY_EXCHANGE_ECJPAKE )
return;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, ecjpake kkpp extension" ) );
if( end - p < 4 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "buffer too small" ) );
return;
}
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( MBEDTLS_TLS_EXT_ECJPAKE_KKPP ) & 0xFF );
ret = mbedtls_ecjpake_write_round_one( &ssl->handshake->ecjpake_ctx,
p + 2, end - p - 2, &kkpp_len,
ssl->conf->f_rng, ssl->conf->p_rng );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1 , "mbedtls_ecjpake_write_round_one", ret );
return;
}
*p++ = (unsigned char)( ( kkpp_len >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( kkpp_len ) & 0xFF );
*olen = kkpp_len + 4;
}
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_SSL_ALPN )
static void ssl_write_alpn_ext( mbedtls_ssl_context *ssl,
unsigned char *buf, size_t *olen )
{
if( ssl->alpn_chosen == NULL )
{
*olen = 0;
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, adding alpn extension" ) );
/*
* 0 . 1 ext identifier
* 2 . 3 ext length
* 4 . 5 protocol list length
* 6 . 6 protocol name length
* 7 . 7+n protocol name
*/
buf[0] = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN >> 8 ) & 0xFF );
buf[1] = (unsigned char)( ( MBEDTLS_TLS_EXT_ALPN ) & 0xFF );
*olen = 7 + strlen( ssl->alpn_chosen );
buf[2] = (unsigned char)( ( ( *olen - 4 ) >> 8 ) & 0xFF );
buf[3] = (unsigned char)( ( ( *olen - 4 ) ) & 0xFF );
buf[4] = (unsigned char)( ( ( *olen - 6 ) >> 8 ) & 0xFF );
buf[5] = (unsigned char)( ( ( *olen - 6 ) ) & 0xFF );
buf[6] = (unsigned char)( ( ( *olen - 7 ) ) & 0xFF );
memcpy( buf + 7, ssl->alpn_chosen, *olen - 7 );
}
#endif /* MBEDTLS_ECDH_C || MBEDTLS_ECDSA_C */
#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
static int ssl_write_hello_verify_request( mbedtls_ssl_context *ssl )
{
int ret;
unsigned char *p = ssl->out_msg + 4;
unsigned char *cookie_len_byte;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write hello verify request" ) );
/*
* struct {
* ProtocolVersion server_version;
* opaque cookie<0..2^8-1>;
* } HelloVerifyRequest;
*/
/* The RFC is not clear on this point, but sending the actual negotiated
* version looks like the most interoperable thing to do. */
mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver,
ssl->conf->transport, p );
MBEDTLS_SSL_DEBUG_BUF( 3, "server version", p, 2 );
p += 2;
/* If we get here, f_cookie_check is not null */
if( ssl->conf->f_cookie_write == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "inconsistent cookie callbacks" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
/* Skip length byte until we know the length */
cookie_len_byte = p++;
if( ( ret = ssl->conf->f_cookie_write( ssl->conf->p_cookie,
&p, ssl->out_buf + MBEDTLS_SSL_OUT_BUFFER_LEN,
ssl->cli_id, ssl->cli_id_len ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "f_cookie_write", ret );
return( ret );
}
*cookie_len_byte = (unsigned char)( p - ( cookie_len_byte + 1 ) );
MBEDTLS_SSL_DEBUG_BUF( 3, "cookie sent", cookie_len_byte + 1, *cookie_len_byte );
ssl->out_msglen = p - ssl->out_msg;
ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
ssl->out_msg[0] = MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST;
ssl->state = MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT;
if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
return( ret );
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret );
return( ret );
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write hello verify request" ) );
return( 0 );
}
#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
static int ssl_write_server_hello( mbedtls_ssl_context *ssl )
{
#if defined(MBEDTLS_HAVE_TIME)
mbedtls_time_t t;
#endif
int ret;
size_t olen, ext_len = 0, n;
unsigned char *buf, *p;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write server hello" ) );
#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
ssl->handshake->verify_cookie_len != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "client hello was not authenticated" ) );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server hello" ) );
return( ssl_write_hello_verify_request( ssl ) );
}
#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
if( ssl->conf->f_rng == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "no RNG provided") );
return( MBEDTLS_ERR_SSL_NO_RNG );
}
/*
* 0 . 0 handshake type
* 1 . 3 handshake length
* 4 . 5 protocol version
* 6 . 9 UNIX time()
* 10 . 37 random bytes
*/
buf = ssl->out_msg;
p = buf + 4;
mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver,
ssl->conf->transport, p );
p += 2;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen version: [%d:%d]",
buf[4], buf[5] ) );
#if defined(MBEDTLS_HAVE_TIME)
t = mbedtls_time( NULL );
*p++ = (unsigned char)( t >> 24 );
*p++ = (unsigned char)( t >> 16 );
*p++ = (unsigned char)( t >> 8 );
*p++ = (unsigned char)( t );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, current time: %lu", t ) );
#else
if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 4 ) ) != 0 )
return( ret );
p += 4;
#endif /* MBEDTLS_HAVE_TIME */
if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, p, 28 ) ) != 0 )
return( ret );
p += 28;
memcpy( ssl->handshake->randbytes + 32, buf + 6, 32 );
MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, random bytes", buf + 6, 32 );
/*
* Resume is 0 by default, see ssl_handshake_init().
* It may be already set to 1 by ssl_parse_session_ticket_ext().
* If not, try looking up session ID in our cache.
*/
if( ssl->handshake->resume == 0 &&
#if defined(MBEDTLS_SSL_RENEGOTIATION)
ssl->renego_status == MBEDTLS_SSL_INITIAL_HANDSHAKE &&
#endif
ssl->session_negotiate->id_len != 0 &&
ssl->conf->f_get_cache != NULL &&
ssl->conf->f_get_cache( ssl->conf->p_cache, ssl->session_negotiate ) == 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "session successfully restored from cache" ) );
ssl->handshake->resume = 1;
}
if( ssl->handshake->resume == 0 )
{
/*
* New session, create a new session id,
* unless we're about to issue a session ticket
*/
ssl->state++;
#if defined(MBEDTLS_HAVE_TIME)
ssl->session_negotiate->start = mbedtls_time( NULL );
#endif
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
if( ssl->handshake->new_session_ticket != 0 )
{
ssl->session_negotiate->id_len = n = 0;
memset( ssl->session_negotiate->id, 0, 32 );
}
else
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
{
ssl->session_negotiate->id_len = n = 32;
if( ( ret = ssl->conf->f_rng( ssl->conf->p_rng, ssl->session_negotiate->id,
n ) ) != 0 )
return( ret );
}
}
else
{
/*
* Resuming a session
*/
n = ssl->session_negotiate->id_len;
ssl->state = MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC;
if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret );
return( ret );
}
}
/*
* 38 . 38 session id length
* 39 . 38+n session id
* 39+n . 40+n chosen ciphersuite
* 41+n . 41+n chosen compression alg.
* 42+n . 43+n extensions length
* 44+n . 43+n+m extensions
*/
*p++ = (unsigned char) ssl->session_negotiate->id_len;
memcpy( p, ssl->session_negotiate->id, ssl->session_negotiate->id_len );
p += ssl->session_negotiate->id_len;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, session id len.: %d", n ) );
MBEDTLS_SSL_DEBUG_BUF( 3, "server hello, session id", buf + 39, n );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "%s session has been resumed",
ssl->handshake->resume ? "a" : "no" ) );
*p++ = (unsigned char)( ssl->session_negotiate->ciphersuite >> 8 );
*p++ = (unsigned char)( ssl->session_negotiate->ciphersuite );
*p++ = (unsigned char)( ssl->session_negotiate->compression );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, chosen ciphersuite: %s",
mbedtls_ssl_get_ciphersuite_name( ssl->session_negotiate->ciphersuite ) ) );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, compress alg.: 0x%02X",
ssl->session_negotiate->compression ) );
/* Do not write the extensions if the protocol is SSLv3 */
#if defined(MBEDTLS_SSL_PROTO_SSL3)
if( ( ssl->major_ver != 3 ) || ( ssl->minor_ver != 0 ) )
{
#endif
/*
* First write extensions, then the total length
*/
ssl_write_renegotiation_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
ssl_write_max_fragment_length_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
ssl_write_truncated_hmac_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
ssl_write_encrypt_then_mac_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
ssl_write_extended_ms_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
ssl_write_session_ticket_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
if ( mbedtls_ssl_ciphersuite_uses_ec(
mbedtls_ssl_ciphersuite_from_id( ssl->session_negotiate->ciphersuite ) ) )
{
ssl_write_supported_point_formats_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
}
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
ssl_write_ecjpake_kkpp_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
#if defined(MBEDTLS_SSL_ALPN)
ssl_write_alpn_ext( ssl, p + 2 + ext_len, &olen );
ext_len += olen;
#endif
MBEDTLS_SSL_DEBUG_MSG( 3, ( "server hello, total extension length: %d", ext_len ) );
if( ext_len > 0 )
{
*p++ = (unsigned char)( ( ext_len >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( ext_len ) & 0xFF );
p += ext_len;
}
#if defined(MBEDTLS_SSL_PROTO_SSL3)
}
#endif
ssl->out_msglen = p - buf;
ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
ssl->out_msg[0] = MBEDTLS_SSL_HS_SERVER_HELLO;
ret = mbedtls_ssl_write_handshake_msg( ssl );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server hello" ) );
return( ret );
}
#if !defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)&& \
!defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
static int ssl_write_certificate_request( mbedtls_ssl_context *ssl )
{
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
ssl->transform_negotiate->ciphersuite_info;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate request" ) );
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate request" ) );
ssl->state++;
return( 0 );
}
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#else
static int ssl_write_certificate_request( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
ssl->transform_negotiate->ciphersuite_info;
size_t dn_size, total_dn_size; /* excluding length bytes */
size_t ct_len, sa_len; /* including length bytes */
unsigned char *buf, *p;
const unsigned char * const end = ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN;
const mbedtls_x509_crt *crt;
int authmode;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate request" ) );
ssl->state++;
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
if( ssl->handshake->sni_authmode != MBEDTLS_SSL_VERIFY_UNSET )
authmode = ssl->handshake->sni_authmode;
else
#endif
authmode = ssl->conf->authmode;
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ||
authmode == MBEDTLS_SSL_VERIFY_NONE )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate request" ) );
return( 0 );
}
/*
* 0 . 0 handshake type
* 1 . 3 handshake length
* 4 . 4 cert type count
* 5 .. m-1 cert types
* m .. m+1 sig alg length (TLS 1.2 only)
* m+1 .. n-1 SignatureAndHashAlgorithms (TLS 1.2 only)
* n .. n+1 length of all DNs
* n+2 .. n+3 length of DN 1
* n+4 .. ... Distinguished Name #1
* ... .. ... length of DN 2, etc.
*/
buf = ssl->out_msg;
p = buf + 4;
/*
* Supported certificate types
*
* ClientCertificateType certificate_types<1..2^8-1>;
* enum { (255) } ClientCertificateType;
*/
ct_len = 0;
#if defined(MBEDTLS_RSA_C)
p[1 + ct_len++] = MBEDTLS_SSL_CERT_TYPE_RSA_SIGN;
#endif
#if defined(MBEDTLS_ECDSA_C)
p[1 + ct_len++] = MBEDTLS_SSL_CERT_TYPE_ECDSA_SIGN;
#endif
p[0] = (unsigned char) ct_len++;
p += ct_len;
sa_len = 0;
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
/*
* Add signature_algorithms for verify (TLS 1.2)
*
* SignatureAndHashAlgorithm supported_signature_algorithms<2..2^16-2>;
*
* struct {
* HashAlgorithm hash;
* SignatureAlgorithm signature;
* } SignatureAndHashAlgorithm;
*
* enum { (255) } HashAlgorithm;
* enum { (255) } SignatureAlgorithm;
*/
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
{
const int *cur;
/*
* Supported signature algorithms
*/
for( cur = ssl->conf->sig_hashes; *cur != MBEDTLS_MD_NONE; cur++ )
{
unsigned char hash = mbedtls_ssl_hash_from_md_alg( *cur );
if( MBEDTLS_SSL_HASH_NONE == hash || mbedtls_ssl_set_calc_verify_md( ssl, hash ) )
continue;
#if defined(MBEDTLS_RSA_C)
p[2 + sa_len++] = hash;
p[2 + sa_len++] = MBEDTLS_SSL_SIG_RSA;
#endif
#if defined(MBEDTLS_ECDSA_C)
p[2 + sa_len++] = hash;
p[2 + sa_len++] = MBEDTLS_SSL_SIG_ECDSA;
#endif
}
p[0] = (unsigned char)( sa_len >> 8 );
p[1] = (unsigned char)( sa_len );
sa_len += 2;
p += sa_len;
}
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
/*
* DistinguishedName certificate_authorities<0..2^16-1>;
* opaque DistinguishedName<1..2^16-1>;
*/
p += 2;
total_dn_size = 0;
if( ssl->conf->cert_req_ca_list == MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED )
{
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
if( ssl->handshake->sni_ca_chain != NULL )
crt = ssl->handshake->sni_ca_chain;
else
#endif
crt = ssl->conf->ca_chain;
while( crt != NULL && crt->version != 0 )
{
dn_size = crt->subject_raw.len;
if( end < p ||
(size_t)( end - p ) < dn_size ||
(size_t)( end - p ) < 2 + dn_size )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "skipping CAs: buffer too short" ) );
break;
}
*p++ = (unsigned char)( dn_size >> 8 );
*p++ = (unsigned char)( dn_size );
memcpy( p, crt->subject_raw.p, dn_size );
p += dn_size;
MBEDTLS_SSL_DEBUG_BUF( 3, "requested DN", p - dn_size, dn_size );
total_dn_size += 2 + dn_size;
crt = crt->next;
}
}
ssl->out_msglen = p - buf;
ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
ssl->out_msg[0] = MBEDTLS_SSL_HS_CERTIFICATE_REQUEST;
ssl->out_msg[4 + ct_len + sa_len] = (unsigned char)( total_dn_size >> 8 );
ssl->out_msg[5 + ct_len + sa_len] = (unsigned char)( total_dn_size );
ret = mbedtls_ssl_write_handshake_msg( ssl );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write certificate request" ) );
return( ret );
}
#endif /* !MBEDTLS_KEY_EXCHANGE_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl )
{
int ret;
if( ! mbedtls_pk_can_do( mbedtls_ssl_own_key( ssl ), MBEDTLS_PK_ECKEY ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "server key not ECDH capable" ) );
return( MBEDTLS_ERR_SSL_PK_TYPE_MISMATCH );
}
if( ( ret = mbedtls_ecdh_get_params( &ssl->handshake->ecdh_ctx,
mbedtls_pk_ec( *mbedtls_ssl_own_key( ssl ) ),
MBEDTLS_ECDH_OURS ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ecdh_get_params" ), ret );
return( ret );
}
return( 0 );
}
#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) ||
MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) && \
defined(MBEDTLS_SSL_ASYNC_PRIVATE)
static int ssl_resume_server_key_exchange( mbedtls_ssl_context *ssl,
size_t *signature_len )
{
/* Append the signature to ssl->out_msg, leaving 2 bytes for the
* signature length which will be added in ssl_write_server_key_exchange
* after the call to ssl_prepare_server_key_exchange.
* ssl_write_server_key_exchange also takes care of incrementing
* ssl->out_msglen. */
unsigned char *sig_start = ssl->out_msg + ssl->out_msglen + 2;
size_t sig_max_len = ( ssl->out_buf + MBEDTLS_SSL_OUT_CONTENT_LEN
- sig_start );
int ret = ssl->conf->f_async_resume( ssl,
sig_start, signature_len, sig_max_len );
if( ret != MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS )
{
ssl->handshake->async_in_progress = 0;
mbedtls_ssl_set_async_operation_data( ssl, NULL );
}
MBEDTLS_SSL_DEBUG_RET( 2, "ssl_resume_server_key_exchange", ret );
return( ret );
}
#endif /* defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) &&
defined(MBEDTLS_SSL_ASYNC_PRIVATE) */
/* Prepare the ServerKeyExchange message, up to and including
* calculating the signature if any, but excluding formatting the
* signature and sending the message. */
static int ssl_prepare_server_key_exchange( mbedtls_ssl_context *ssl,
size_t *signature_len )
{
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
ssl->transform_negotiate->ciphersuite_info;
#if defined(MBEDTLS_KEY_EXCHANGE__SOME_PFS__ENABLED)
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
unsigned char *dig_signed = NULL;
#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */
#endif /* MBEDTLS_KEY_EXCHANGE__SOME_PFS__ENABLED */
(void) ciphersuite_info; /* unused in some configurations */
#if !defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
(void) signature_len;
#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */
ssl->out_msglen = 4; /* header (type:1, length:3) to be written later */
/*
*
* Part 1: Provide key exchange parameters for chosen ciphersuite.
*
*/
/*
* - ECJPAKE key exchanges
*/
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
{
int ret;
size_t len = 0;
ret = mbedtls_ecjpake_write_round_two(
&ssl->handshake->ecjpake_ctx,
ssl->out_msg + ssl->out_msglen,
MBEDTLS_SSL_OUT_CONTENT_LEN - ssl->out_msglen, &len,
ssl->conf->f_rng, ssl->conf->p_rng );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_write_round_two", ret );
return( ret );
}
ssl->out_msglen += len;
}
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
/*
* For (EC)DHE key exchanges with PSK, parameters are prefixed by support
* identity hint (RFC 4279, Sec. 3). Until someone needs this feature,
* we use empty support identity hints here.
**/
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK )
{
ssl->out_msg[ssl->out_msglen++] = 0x00;
ssl->out_msg[ssl->out_msglen++] = 0x00;
}
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
/*
* - DHE key exchanges
*/
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__DHE_ENABLED)
if( mbedtls_ssl_ciphersuite_uses_dhe( ciphersuite_info ) )
{
int ret;
size_t len = 0;
if( ssl->conf->dhm_P.p == NULL || ssl->conf->dhm_G.p == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "no DH parameters set" ) );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
/*
* Ephemeral DH parameters:
*
* struct {
* opaque dh_p<1..2^16-1>;
* opaque dh_g<1..2^16-1>;
* opaque dh_Ys<1..2^16-1>;
* } ServerDHParams;
*/
if( ( ret = mbedtls_dhm_set_group( &ssl->handshake->dhm_ctx,
&ssl->conf->dhm_P,
&ssl->conf->dhm_G ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_set_group", ret );
return( ret );
}
if( ( ret = mbedtls_dhm_make_params(
&ssl->handshake->dhm_ctx,
(int) mbedtls_mpi_size( &ssl->handshake->dhm_ctx.P ),
ssl->out_msg + ssl->out_msglen, &len,
ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_make_params", ret );
return( ret );
}
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
dig_signed = ssl->out_msg + ssl->out_msglen;
#endif
ssl->out_msglen += len;
MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: X ", &ssl->handshake->dhm_ctx.X );
MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: P ", &ssl->handshake->dhm_ctx.P );
MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: G ", &ssl->handshake->dhm_ctx.G );
MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GX", &ssl->handshake->dhm_ctx.GX );
}
#endif /* MBEDTLS_KEY_EXCHANGE__SOME__DHE_ENABLED */
/*
* - ECDHE key exchanges
*/
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED)
if( mbedtls_ssl_ciphersuite_uses_ecdhe( ciphersuite_info ) )
{
/*
* Ephemeral ECDH parameters:
*
* struct {
* ECParameters curve_params;
* ECPoint public;
* } ServerECDHParams;
*/
const mbedtls_ecp_curve_info **curve = NULL;
const mbedtls_ecp_group_id *gid;
int ret;
size_t len = 0;
/* Match our preference list against the offered curves */
for( gid = ssl->conf->curve_list; *gid != MBEDTLS_ECP_DP_NONE; gid++ )
for( curve = ssl->handshake->curves; *curve != NULL; curve++ )
if( (*curve)->grp_id == *gid )
goto curve_matching_done;
curve_matching_done:
if( curve == NULL || *curve == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "no matching curve for ECDHE" ) );
return( MBEDTLS_ERR_SSL_NO_CIPHER_CHOSEN );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "ECDHE curve: %s", (*curve)->name ) );
if( ( ret = mbedtls_ecdh_setup( &ssl->handshake->ecdh_ctx,
(*curve)->grp_id ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecp_group_load", ret );
return( ret );
}
if( ( ret = mbedtls_ecdh_make_params(
&ssl->handshake->ecdh_ctx, &len,
ssl->out_msg + ssl->out_msglen,
MBEDTLS_SSL_OUT_CONTENT_LEN - ssl->out_msglen,
ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_make_params", ret );
return( ret );
}
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
dig_signed = ssl->out_msg + ssl->out_msglen;
#endif
ssl->out_msglen += len;
MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
MBEDTLS_DEBUG_ECDH_Q );
}
#endif /* MBEDTLS_KEY_EXCHANGE__SOME__ECDHE_ENABLED */
/*
*
* Part 2: For key exchanges involving the server signing the
* exchange parameters, compute and add the signature here.
*
*/
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
if( mbedtls_ssl_ciphersuite_uses_server_signature( ciphersuite_info ) )
{
size_t dig_signed_len = ssl->out_msg + ssl->out_msglen - dig_signed;
size_t hashlen = 0;
unsigned char hash[MBEDTLS_MD_MAX_SIZE];
int ret;
/*
* 2.1: Choose hash algorithm:
* A: For TLS 1.2, obey signature-hash-algorithm extension
* to choose appropriate hash.
* B: For SSL3, TLS1.0, TLS1.1 and ECDHE_ECDSA, use SHA1
* (RFC 4492, Sec. 5.4)
* C: Otherwise, use MD5 + SHA1 (RFC 4346, Sec. 7.4.3)
*/
mbedtls_md_type_t md_alg;
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
mbedtls_pk_type_t sig_alg =
mbedtls_ssl_get_ciphersuite_sig_pk_alg( ciphersuite_info );
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
{
/* A: For TLS 1.2, obey signature-hash-algorithm extension
* (RFC 5246, Sec. 7.4.1.4.1). */
if( sig_alg == MBEDTLS_PK_NONE ||
( md_alg = mbedtls_ssl_sig_hash_set_find( &ssl->handshake->hash_algs,
sig_alg ) ) == MBEDTLS_MD_NONE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
/* (... because we choose a cipher suite
* only if there is a matching hash.) */
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
}
else
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA )
{
/* B: Default hash SHA1 */
md_alg = MBEDTLS_MD_SHA1;
}
else
#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \
MBEDTLS_SSL_PROTO_TLS1_1 */
{
/* C: MD5 + SHA1 */
md_alg = MBEDTLS_MD_NONE;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "pick hash algorithm %d for signing", md_alg ) );
/*
* 2.2: Compute the hash to be signed
*/
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1)
if( md_alg == MBEDTLS_MD_NONE )
{
hashlen = 36;
ret = mbedtls_ssl_get_key_exchange_md_ssl_tls( ssl, hash,
dig_signed,
dig_signed_len );
if( ret != 0 )
return( ret );
}
else
#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \
MBEDTLS_SSL_PROTO_TLS1_1 */
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( md_alg != MBEDTLS_MD_NONE )
{
ret = mbedtls_ssl_get_key_exchange_md_tls1_2( ssl, hash, &hashlen,
dig_signed,
dig_signed_len,
md_alg );
if( ret != 0 )
return( ret );
}
else
#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
MBEDTLS_SSL_PROTO_TLS1_2 */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
MBEDTLS_SSL_DEBUG_BUF( 3, "parameters hash", hash, hashlen );
/*
* 2.3: Compute and add the signature
*/
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
{
/*
* For TLS 1.2, we need to specify signature and hash algorithm
* explicitly through a prefix to the signature.
*
* struct {
* HashAlgorithm hash;
* SignatureAlgorithm signature;
* } SignatureAndHashAlgorithm;
*
* struct {
* SignatureAndHashAlgorithm algorithm;
* opaque signature<0..2^16-1>;
* } DigitallySigned;
*
*/
ssl->out_msg[ssl->out_msglen++] =
mbedtls_ssl_hash_from_md_alg( md_alg );
ssl->out_msg[ssl->out_msglen++] =
mbedtls_ssl_sig_from_pk_alg( sig_alg );
}
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
if( ssl->conf->f_async_sign_start != NULL )
{
ret = ssl->conf->f_async_sign_start( ssl,
mbedtls_ssl_own_cert( ssl ),
md_alg, hash, hashlen );
switch( ret )
{
case MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH:
/* act as if f_async_sign was null */
break;
case 0:
ssl->handshake->async_in_progress = 1;
return( ssl_resume_server_key_exchange( ssl, signature_len ) );
case MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS:
ssl->handshake->async_in_progress = 1;
return( MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS );
default:
MBEDTLS_SSL_DEBUG_RET( 1, "f_async_sign_start", ret );
return( ret );
}
}
#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
if( mbedtls_ssl_own_key( ssl ) == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no private key" ) );
return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED );
}
/* Append the signature to ssl->out_msg, leaving 2 bytes for the
* signature length which will be added in ssl_write_server_key_exchange
* after the call to ssl_prepare_server_key_exchange.
* ssl_write_server_key_exchange also takes care of incrementing
* ssl->out_msglen. */
if( ( ret = mbedtls_pk_sign( mbedtls_ssl_own_key( ssl ),
md_alg, hash, hashlen,
ssl->out_msg + ssl->out_msglen + 2,
signature_len,
ssl->conf->f_rng,
ssl->conf->p_rng ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_sign", ret );
return( ret );
}
}
#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */
return( 0 );
}
/* Prepare the ServerKeyExchange message and send it. For ciphersuites
* that do not include a ServerKeyExchange message, do nothing. Either
* way, if successful, move on to the next step in the SSL state
* machine. */
static int ssl_write_server_key_exchange( mbedtls_ssl_context *ssl )
{
int ret;
size_t signature_len = 0;
#if defined(MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED)
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
ssl->transform_negotiate->ciphersuite_info;
#endif /* MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED */
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write server key exchange" ) );
#if defined(MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED)
/* Extract static ECDH parameters and abort if ServerKeyExchange
* is not needed. */
if( mbedtls_ssl_ciphersuite_no_pfs( ciphersuite_info ) )
{
/* For suites involving ECDH, extract DH parameters
* from certificate at this point. */
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__ECDH_ENABLED)
if( mbedtls_ssl_ciphersuite_uses_ecdh( ciphersuite_info ) )
{
ssl_get_ecdh_params_from_cert( ssl );
}
#endif /* MBEDTLS_KEY_EXCHANGE__SOME__ECDH_ENABLED */
/* Key exchanges not involving ephemeral keys don't use
* ServerKeyExchange, so end here. */
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write server key exchange" ) );
ssl->state++;
return( 0 );
}
#endif /* MBEDTLS_KEY_EXCHANGE__SOME_NON_PFS__ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) && \
defined(MBEDTLS_SSL_ASYNC_PRIVATE)
/* If we have already prepared the message and there is an ongoing
* signature operation, resume signing. */
if( ssl->handshake->async_in_progress != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "resuming signature operation" ) );
ret = ssl_resume_server_key_exchange( ssl, &signature_len );
}
else
#endif /* defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED) &&
defined(MBEDTLS_SSL_ASYNC_PRIVATE) */
{
/* ServerKeyExchange is needed. Prepare the message. */
ret = ssl_prepare_server_key_exchange( ssl, &signature_len );
}
if( ret != 0 )
{
/* If we're starting to write a new message, set ssl->out_msglen
* to 0. But if we're resuming after an asynchronous message,
* out_msglen is the amount of data written so far and mst be
* preserved. */
if( ret == MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS )
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server key exchange (pending)" ) );
else
ssl->out_msglen = 0;
return( ret );
}
/* If there is a signature, write its length.
* ssl_prepare_server_key_exchange already wrote the signature
* itself at its proper place in the output buffer. */
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED)
if( signature_len != 0 )
{
ssl->out_msg[ssl->out_msglen++] = (unsigned char)( signature_len >> 8 );
ssl->out_msg[ssl->out_msglen++] = (unsigned char)( signature_len );
MBEDTLS_SSL_DEBUG_BUF( 3, "my signature",
ssl->out_msg + ssl->out_msglen,
signature_len );
/* Skip over the already-written signature */
ssl->out_msglen += signature_len;
}
#endif /* MBEDTLS_KEY_EXCHANGE__WITH_SERVER_SIGNATURE__ENABLED */
/* Add header and send. */
ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
ssl->out_msg[0] = MBEDTLS_SSL_HS_SERVER_KEY_EXCHANGE;
ssl->state++;
if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server key exchange" ) );
return( 0 );
}
static int ssl_write_server_hello_done( mbedtls_ssl_context *ssl )
{
int ret;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write server hello done" ) );
ssl->out_msglen = 4;
ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
ssl->out_msg[0] = MBEDTLS_SSL_HS_SERVER_HELLO_DONE;
ssl->state++;
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
mbedtls_ssl_send_flight_completed( ssl );
#endif
if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
return( ret );
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret );
return( ret );
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write server hello done" ) );
return( 0 );
}
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
static int ssl_parse_client_dh_public( mbedtls_ssl_context *ssl, unsigned char **p,
const unsigned char *end )
{
int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
size_t n;
/*
* Receive G^Y mod P, premaster = (G^Y)^X mod P
*/
if( *p + 2 > end )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
}
n = ( (*p)[0] << 8 ) | (*p)[1];
*p += 2;
if( *p + n > end )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
}
if( ( ret = mbedtls_dhm_read_public( &ssl->handshake->dhm_ctx, *p, n ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_read_public", ret );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP );
}
*p += n;
MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: GY", &ssl->handshake->dhm_ctx.GY );
return( ret );
}
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
static int ssl_resume_decrypt_pms( mbedtls_ssl_context *ssl,
unsigned char *peer_pms,
size_t *peer_pmslen,
size_t peer_pmssize )
{
int ret = ssl->conf->f_async_resume( ssl,
peer_pms, peer_pmslen, peer_pmssize );
if( ret != MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS )
{
ssl->handshake->async_in_progress = 0;
mbedtls_ssl_set_async_operation_data( ssl, NULL );
}
MBEDTLS_SSL_DEBUG_RET( 2, "ssl_decrypt_encrypted_pms", ret );
return( ret );
}
#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
static int ssl_decrypt_encrypted_pms( mbedtls_ssl_context *ssl,
const unsigned char *p,
const unsigned char *end,
unsigned char *peer_pms,
size_t *peer_pmslen,
size_t peer_pmssize )
{
int ret;
mbedtls_pk_context *private_key = mbedtls_ssl_own_key( ssl );
mbedtls_pk_context *public_key = &mbedtls_ssl_own_cert( ssl )->pk;
size_t len = mbedtls_pk_get_len( public_key );
#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
/* If we have already started decoding the message and there is an ongoing
* decryption operation, resume signing. */
if( ssl->handshake->async_in_progress != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "resuming decryption operation" ) );
return( ssl_resume_decrypt_pms( ssl,
peer_pms, peer_pmslen, peer_pmssize ) );
}
#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
/*
* Prepare to decrypt the premaster using own private RSA key
*/
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 )
{
if ( p + 2 > end ) {
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
}
if( *p++ != ( ( len >> 8 ) & 0xFF ) ||
*p++ != ( ( len ) & 0xFF ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
}
}
#endif
if( p + len != end )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
}
/*
* Decrypt the premaster secret
*/
#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
if( ssl->conf->f_async_decrypt_start != NULL )
{
ret = ssl->conf->f_async_decrypt_start( ssl,
mbedtls_ssl_own_cert( ssl ),
p, len );
switch( ret )
{
case MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH:
/* act as if f_async_decrypt_start was null */
break;
case 0:
ssl->handshake->async_in_progress = 1;
return( ssl_resume_decrypt_pms( ssl,
peer_pms,
peer_pmslen,
peer_pmssize ) );
case MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS:
ssl->handshake->async_in_progress = 1;
return( MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS );
default:
MBEDTLS_SSL_DEBUG_RET( 1, "f_async_decrypt_start", ret );
return( ret );
}
}
#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
if( ! mbedtls_pk_can_do( private_key, MBEDTLS_PK_RSA ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no RSA private key" ) );
return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED );
}
ret = mbedtls_pk_decrypt( private_key, p, len,
peer_pms, peer_pmslen, peer_pmssize,
ssl->conf->f_rng, ssl->conf->p_rng );
return( ret );
}
static int ssl_parse_encrypted_pms( mbedtls_ssl_context *ssl,
const unsigned char *p,
const unsigned char *end,
size_t pms_offset )
{
int ret;
unsigned char *pms = ssl->handshake->premaster + pms_offset;
unsigned char ver[2];
unsigned char fake_pms[48], peer_pms[48];
unsigned char mask;
size_t i, peer_pmslen;
unsigned int diff;
/* In case of a failure in decryption, the decryption may write less than
* 2 bytes of output, but we always read the first two bytes. It doesn't
* matter in the end because diff will be nonzero in that case due to
* peer_pmslen being less than 48, and we only care whether diff is 0.
* But do initialize peer_pms for robustness anyway. This also makes
* memory analyzers happy (don't access uninitialized memory, even
* if it's an unsigned char). */
peer_pms[0] = peer_pms[1] = ~0;
ret = ssl_decrypt_encrypted_pms( ssl, p, end,
peer_pms,
&peer_pmslen,
sizeof( peer_pms ) );
#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
if ( ret == MBEDTLS_ERR_SSL_ASYNC_IN_PROGRESS )
return( ret );
#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
mbedtls_ssl_write_version( ssl->handshake->max_major_ver,
ssl->handshake->max_minor_ver,
ssl->conf->transport, ver );
/* Avoid data-dependent branches while checking for invalid
* padding, to protect against timing-based Bleichenbacher-type
* attacks. */
diff = (unsigned int) ret;
diff |= peer_pmslen ^ 48;
diff |= peer_pms[0] ^ ver[0];
diff |= peer_pms[1] ^ ver[1];
/* mask = diff ? 0xff : 0x00 using bit operations to avoid branches */
/* MSVC has a warning about unary minus on unsigned, but this is
* well-defined and precisely what we want to do here */
#if defined(_MSC_VER)
#pragma warning( push )
#pragma warning( disable : 4146 )
#endif
mask = - ( ( diff | - diff ) >> ( sizeof( unsigned int ) * 8 - 1 ) );
#if defined(_MSC_VER)
#pragma warning( pop )
#endif
/*
* Protection against Bleichenbacher's attack: invalid PKCS#1 v1.5 padding
* must not cause the connection to end immediately; instead, send a
* bad_record_mac later in the handshake.
* To protect against timing-based variants of the attack, we must
* not have any branch that depends on whether the decryption was
* successful. In particular, always generate the fake premaster secret,
* regardless of whether it will ultimately influence the output or not.
*/
ret = ssl->conf->f_rng( ssl->conf->p_rng, fake_pms, sizeof( fake_pms ) );
if( ret != 0 )
{
/* It's ok to abort on an RNG failure, since this does not reveal
* anything about the RSA decryption. */
return( ret );
}
#if defined(MBEDTLS_SSL_DEBUG_ALL)
if( diff != 0 )
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
#endif
if( sizeof( ssl->handshake->premaster ) < pms_offset ||
sizeof( ssl->handshake->premaster ) - pms_offset < 48 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
ssl->handshake->pmslen = 48;
/* Set pms to either the true or the fake PMS, without
* data-dependent branches. */
for( i = 0; i < ssl->handshake->pmslen; i++ )
pms[i] = ( mask & fake_pms[i] ) | ( (~mask) & peer_pms[i] );
return( 0 );
}
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
static int ssl_parse_client_psk_identity( mbedtls_ssl_context *ssl, unsigned char **p,
const unsigned char *end )
{
int ret = 0;
size_t n;
if( ssl->conf->f_psk == NULL &&
( ssl->conf->psk == NULL || ssl->conf->psk_identity == NULL ||
ssl->conf->psk_identity_len == 0 || ssl->conf->psk_len == 0 ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no pre-shared key" ) );
return( MBEDTLS_ERR_SSL_PRIVATE_KEY_REQUIRED );
}
/*
* Receive client pre-shared key identity name
*/
if( end - *p < 2 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
}
n = ( (*p)[0] << 8 ) | (*p)[1];
*p += 2;
if( n < 1 || n > 65535 || n > (size_t) ( end - *p ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
}
if( ssl->conf->f_psk != NULL )
{
if( ssl->conf->f_psk( ssl->conf->p_psk, ssl, *p, n ) != 0 )
ret = MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY;
}
else
{
/* Identity is not a big secret since clients send it in the clear,
* but treat it carefully anyway, just in case */
if( n != ssl->conf->psk_identity_len ||
mbedtls_ssl_safer_memcmp( ssl->conf->psk_identity, *p, n ) != 0 )
{
ret = MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY;
}
}
if( ret == MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY )
{
MBEDTLS_SSL_DEBUG_BUF( 3, "Unknown PSK identity", *p, n );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_UNKNOWN_PSK_IDENTITY );
return( MBEDTLS_ERR_SSL_UNKNOWN_IDENTITY );
}
*p += n;
return( 0 );
}
#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
static int ssl_parse_client_key_exchange( mbedtls_ssl_context *ssl )
{
int ret;
const mbedtls_ssl_ciphersuite_t *ciphersuite_info;
unsigned char *p, *end;
ciphersuite_info = ssl->transform_negotiate->ciphersuite_info;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse client key exchange" ) );
#if defined(MBEDTLS_SSL_ASYNC_PRIVATE) && \
( defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) )
if( ( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA ) &&
( ssl->handshake->async_in_progress != 0 ) )
{
/* We've already read a record and there is an asynchronous
* operation in progress to decrypt it. So skip reading the
* record. */
MBEDTLS_SSL_DEBUG_MSG( 3, ( "will resume decryption of previously-read record" ) );
}
else
#endif
if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
return( ret );
}
p = ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl );
end = ssl->in_msg + ssl->in_hslen;
if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
}
if( ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_KEY_EXCHANGE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
}
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_RSA )
{
if( ( ret = ssl_parse_client_dh_public( ssl, &p, end ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_dh_public" ), ret );
return( ret );
}
if( p != end )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
}
if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx,
ssl->handshake->premaster,
MBEDTLS_PREMASTER_SIZE,
&ssl->handshake->pmslen,
ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS );
}
MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K );
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_RSA ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_RSA ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA )
{
if( ( ret = mbedtls_ecdh_read_public( &ssl->handshake->ecdh_ctx,
p, end - p) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_read_public", ret );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP );
}
MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
MBEDTLS_DEBUG_ECDH_QP );
if( ( ret = mbedtls_ecdh_calc_secret( &ssl->handshake->ecdh_ctx,
&ssl->handshake->pmslen,
ssl->handshake->premaster,
MBEDTLS_MPI_MAX_SIZE,
ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_CS );
}
MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
MBEDTLS_DEBUG_ECDH_Z );
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED ||
MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK )
{
if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret );
return( ret );
}
if( p != end )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
}
if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl,
ciphersuite_info->key_exchange ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret );
return( ret );
}
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK )
{
#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
if ( ssl->handshake->async_in_progress != 0 )
{
/* There is an asynchronous operation in progress to
* decrypt the encrypted premaster secret, so skip
* directly to resuming this operation. */
MBEDTLS_SSL_DEBUG_MSG( 3, ( "PSK identity already parsed" ) );
/* Update p to skip the PSK identity. ssl_parse_encrypted_pms
* won't actually use it, but maintain p anyway for robustness. */
p += ssl->conf->psk_identity_len + 2;
}
else
#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret );
return( ret );
}
if( ( ret = ssl_parse_encrypted_pms( ssl, p, end, 2 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_encrypted_pms" ), ret );
return( ret );
}
if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl,
ciphersuite_info->key_exchange ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret );
return( ret );
}
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK )
{
if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret );
return( ret );
}
if( ( ret = ssl_parse_client_dh_public( ssl, &p, end ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_dh_public" ), ret );
return( ret );
}
if( p != end )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad client key exchange" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE );
}
if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl,
ciphersuite_info->key_exchange ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret );
return( ret );
}
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK )
{
if( ( ret = ssl_parse_client_psk_identity( ssl, &p, end ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_client_psk_identity" ), ret );
return( ret );
}
if( ( ret = mbedtls_ecdh_read_public( &ssl->handshake->ecdh_ctx,
p, end - p ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_read_public", ret );
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_RP );
}
MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
MBEDTLS_DEBUG_ECDH_QP );
if( ( ret = mbedtls_ssl_psk_derive_premaster( ssl,
ciphersuite_info->key_exchange ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_psk_derive_premaster", ret );
return( ret );
}
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA )
{
if( ( ret = ssl_parse_encrypted_pms( ssl, p, end, 0 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_parse_parse_encrypted_pms_secret" ), ret );
return( ret );
}
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
{
ret = mbedtls_ecjpake_read_round_two( &ssl->handshake->ecjpake_ctx,
p, end - p );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_read_round_two", ret );
return( MBEDTLS_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE );
}
ret = mbedtls_ecjpake_derive_secret( &ssl->handshake->ecjpake_ctx,
ssl->handshake->premaster, 32, &ssl->handshake->pmslen,
ssl->conf->f_rng, ssl->conf->p_rng );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecjpake_derive_secret", ret );
return( ret );
}
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
if( ( ret = mbedtls_ssl_derive_keys( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_derive_keys", ret );
return( ret );
}
ssl->state++;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse client key exchange" ) );
return( 0 );
}
#if !defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)&& \
!defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl )
{
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
ssl->transform_negotiate->ciphersuite_info;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate verify" ) );
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) );
ssl->state++;
return( 0 );
}
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#else
static int ssl_parse_certificate_verify( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
size_t i, sig_len;
unsigned char hash[48];
unsigned char *hash_start = hash;
size_t hashlen;
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
mbedtls_pk_type_t pk_alg;
#endif
mbedtls_md_type_t md_alg;
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
ssl->transform_negotiate->ciphersuite_info;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate verify" ) );
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE ||
ssl->session_negotiate->peer_cert == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate verify" ) );
ssl->state++;
return( 0 );
}
/* Read the message without adding it to the checksum */
ret = mbedtls_ssl_read_record( ssl, 0 /* no checksum update */ );
if( 0 != ret )
{
MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ssl_read_record" ), ret );
return( ret );
}
ssl->state++;
/* Process the message contents */
if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE ||
ssl->in_msg[0] != MBEDTLS_SSL_HS_CERTIFICATE_VERIFY )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
}
i = mbedtls_ssl_hs_hdr_len( ssl );
/*
* struct {
* SignatureAndHashAlgorithm algorithm; -- TLS 1.2 only
* opaque signature<0..2^16-1>;
* } DigitallySigned;
*/
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1)
if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 )
{
md_alg = MBEDTLS_MD_NONE;
hashlen = 36;
/* For ECDSA, use SHA-1, not MD-5 + SHA-1 */
if( mbedtls_pk_can_do( &ssl->session_negotiate->peer_cert->pk,
MBEDTLS_PK_ECDSA ) )
{
hash_start += 16;
hashlen -= 16;
md_alg = MBEDTLS_MD_SHA1;
}
}
else
#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 ||
MBEDTLS_SSL_PROTO_TLS1_1 */
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
{
if( i + 2 > ssl->in_hslen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
}
/*
* Hash
*/
md_alg = mbedtls_ssl_md_alg_from_hash( ssl->in_msg[i] );
if( md_alg == MBEDTLS_MD_NONE || mbedtls_ssl_set_calc_verify_md( ssl, ssl->in_msg[i] ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "peer not adhering to requested sig_alg"
" for verify message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
}
#if !defined(MBEDTLS_MD_SHA1)
if( MBEDTLS_MD_SHA1 == md_alg )
hash_start += 16;
#endif
/* Info from md_alg will be used instead */
hashlen = 0;
i++;
/*
* Signature
*/
if( ( pk_alg = mbedtls_ssl_pk_alg_from_sig( ssl->in_msg[i] ) )
== MBEDTLS_PK_NONE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "peer not adhering to requested sig_alg"
" for verify message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
}
/*
* Check the certificate's key type matches the signature alg
*/
if( ! mbedtls_pk_can_do( &ssl->session_negotiate->peer_cert->pk, pk_alg ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "sig_alg doesn't match cert key" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
}
i++;
}
else
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
if( i + 2 > ssl->in_hslen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
}
sig_len = ( ssl->in_msg[i] << 8 ) | ssl->in_msg[i+1];
i += 2;
if( i + sig_len != ssl->in_hslen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate verify message" ) );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY );
}
/* Calculate hash and verify signature */
ssl->handshake->calc_verify( ssl, hash );
if( ( ret = mbedtls_pk_verify( &ssl->session_negotiate->peer_cert->pk,
md_alg, hash_start, hashlen,
ssl->in_msg + i, sig_len ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_pk_verify", ret );
return( ret );
}
mbedtls_ssl_update_handshake_status( ssl );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate verify" ) );
return( ret );
}
#endif /* !MBEDTLS_KEY_EXCHANGE_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
static int ssl_write_new_session_ticket( mbedtls_ssl_context *ssl )
{
int ret;
size_t tlen;
uint32_t lifetime;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write new session ticket" ) );
ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
ssl->out_msg[0] = MBEDTLS_SSL_HS_NEW_SESSION_TICKET;
/*
* struct {
* uint32 ticket_lifetime_hint;
* opaque ticket<0..2^16-1>;
* } NewSessionTicket;
*
* 4 . 7 ticket_lifetime_hint (0 = unspecified)
* 8 . 9 ticket_len (n)
* 10 . 9+n ticket content
*/
if( ( ret = ssl->conf->f_ticket_write( ssl->conf->p_ticket,
ssl->session_negotiate,
ssl->out_msg + 10,
ssl->out_msg + MBEDTLS_SSL_OUT_CONTENT_LEN,
&tlen, &lifetime ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_ticket_write", ret );
tlen = 0;
}
ssl->out_msg[4] = ( lifetime >> 24 ) & 0xFF;
ssl->out_msg[5] = ( lifetime >> 16 ) & 0xFF;
ssl->out_msg[6] = ( lifetime >> 8 ) & 0xFF;
ssl->out_msg[7] = ( lifetime ) & 0xFF;
ssl->out_msg[8] = (unsigned char)( ( tlen >> 8 ) & 0xFF );
ssl->out_msg[9] = (unsigned char)( ( tlen ) & 0xFF );
ssl->out_msglen = 10 + tlen;
/*
* Morally equivalent to updating ssl->state, but NewSessionTicket and
* ChangeCipherSpec share the same state.
*/
ssl->handshake->new_session_ticket = 0;
if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write new session ticket" ) );
return( 0 );
}
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
/*
* SSL handshake -- server side -- single step
*/
int mbedtls_ssl_handshake_server_step( mbedtls_ssl_context *ssl )
{
int ret = 0;
if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER || ssl->handshake == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "server state: %d", ssl->state ) );
if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
return( ret );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING )
{
if( ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
return( ret );
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
switch( ssl->state )
{
case MBEDTLS_SSL_HELLO_REQUEST:
ssl->state = MBEDTLS_SSL_CLIENT_HELLO;
break;
/*
* <== ClientHello
*/
case MBEDTLS_SSL_CLIENT_HELLO:
ret = ssl_parse_client_hello( ssl );
break;
#if defined(MBEDTLS_SSL_PROTO_DTLS)
case MBEDTLS_SSL_SERVER_HELLO_VERIFY_REQUEST_SENT:
return( MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED );
#endif
/*
* ==> ServerHello
* Certificate
* ( ServerKeyExchange )
* ( CertificateRequest )
* ServerHelloDone
*/
case MBEDTLS_SSL_SERVER_HELLO:
ret = ssl_write_server_hello( ssl );
break;
case MBEDTLS_SSL_SERVER_CERTIFICATE:
ret = mbedtls_ssl_write_certificate( ssl );
break;
case MBEDTLS_SSL_SERVER_KEY_EXCHANGE:
ret = ssl_write_server_key_exchange( ssl );
break;
case MBEDTLS_SSL_CERTIFICATE_REQUEST:
ret = ssl_write_certificate_request( ssl );
break;
case MBEDTLS_SSL_SERVER_HELLO_DONE:
ret = ssl_write_server_hello_done( ssl );
break;
/*
* <== ( Certificate/Alert )
* ClientKeyExchange
* ( CertificateVerify )
* ChangeCipherSpec
* Finished
*/
case MBEDTLS_SSL_CLIENT_CERTIFICATE:
ret = mbedtls_ssl_parse_certificate( ssl );
break;
case MBEDTLS_SSL_CLIENT_KEY_EXCHANGE:
ret = ssl_parse_client_key_exchange( ssl );
break;
case MBEDTLS_SSL_CERTIFICATE_VERIFY:
ret = ssl_parse_certificate_verify( ssl );
break;
case MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC:
ret = mbedtls_ssl_parse_change_cipher_spec( ssl );
break;
case MBEDTLS_SSL_CLIENT_FINISHED:
ret = mbedtls_ssl_parse_finished( ssl );
break;
/*
* ==> ( NewSessionTicket )
* ChangeCipherSpec
* Finished
*/
case MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC:
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
if( ssl->handshake->new_session_ticket != 0 )
ret = ssl_write_new_session_ticket( ssl );
else
#endif
ret = mbedtls_ssl_write_change_cipher_spec( ssl );
break;
case MBEDTLS_SSL_SERVER_FINISHED:
ret = mbedtls_ssl_write_finished( ssl );
break;
case MBEDTLS_SSL_FLUSH_BUFFERS:
MBEDTLS_SSL_DEBUG_MSG( 2, ( "handshake: done" ) );
ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP;
break;
case MBEDTLS_SSL_HANDSHAKE_WRAPUP:
mbedtls_ssl_handshake_wrapup( ssl );
break;
default:
MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid state %d", ssl->state ) );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
return( ret );
}
#endif /* MBEDTLS_SSL_SRV_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/ssl_srv.c | C | apache-2.0 | 152,498 |
/*
* TLS server tickets callbacks implementation
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_SSL_TICKET_C)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#include "mbedtls/ssl_ticket.h"
#include "mbedtls/platform_util.h"
#include <string.h>
/*
* Initialze context
*/
void mbedtls_ssl_ticket_init( mbedtls_ssl_ticket_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_ssl_ticket_context ) );
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_init( &ctx->mutex );
#endif
}
#define MAX_KEY_BYTES 32 /* 256 bits */
/*
* Generate/update a key
*/
static int ssl_ticket_gen_key( mbedtls_ssl_ticket_context *ctx,
unsigned char index )
{
int ret;
unsigned char buf[MAX_KEY_BYTES];
mbedtls_ssl_ticket_key *key = ctx->keys + index;
#if defined(MBEDTLS_HAVE_TIME)
key->generation_time = (uint32_t) mbedtls_time( NULL );
#endif
if( ( ret = ctx->f_rng( ctx->p_rng, key->name, sizeof( key->name ) ) ) != 0 )
return( ret );
if( ( ret = ctx->f_rng( ctx->p_rng, buf, sizeof( buf ) ) ) != 0 )
return( ret );
/* With GCM and CCM, same context can encrypt & decrypt */
ret = mbedtls_cipher_setkey( &key->ctx, buf,
mbedtls_cipher_get_key_bitlen( &key->ctx ),
MBEDTLS_ENCRYPT );
mbedtls_platform_zeroize( buf, sizeof( buf ) );
return( ret );
}
/*
* Rotate/generate keys if necessary
*/
static int ssl_ticket_update_keys( mbedtls_ssl_ticket_context *ctx )
{
#if !defined(MBEDTLS_HAVE_TIME)
((void) ctx);
#else
if( ctx->ticket_lifetime != 0 )
{
uint32_t current_time = (uint32_t) mbedtls_time( NULL );
uint32_t key_time = ctx->keys[ctx->active].generation_time;
if( current_time >= key_time &&
current_time - key_time < ctx->ticket_lifetime )
{
return( 0 );
}
ctx->active = 1 - ctx->active;
return( ssl_ticket_gen_key( ctx, ctx->active ) );
}
else
#endif /* MBEDTLS_HAVE_TIME */
return( 0 );
}
/*
* Setup context for actual use
*/
int mbedtls_ssl_ticket_setup( mbedtls_ssl_ticket_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
mbedtls_cipher_type_t cipher,
uint32_t lifetime )
{
int ret;
const mbedtls_cipher_info_t *cipher_info;
ctx->f_rng = f_rng;
ctx->p_rng = p_rng;
ctx->ticket_lifetime = lifetime;
cipher_info = mbedtls_cipher_info_from_type( cipher);
if( cipher_info == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
if( cipher_info->mode != MBEDTLS_MODE_GCM &&
cipher_info->mode != MBEDTLS_MODE_CCM )
{
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
if( cipher_info->key_bitlen > 8 * MAX_KEY_BYTES )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
if( ( ret = mbedtls_cipher_setup( &ctx->keys[0].ctx, cipher_info ) ) != 0 ||
( ret = mbedtls_cipher_setup( &ctx->keys[1].ctx, cipher_info ) ) != 0 )
{
return( ret );
}
if( ( ret = ssl_ticket_gen_key( ctx, 0 ) ) != 0 ||
( ret = ssl_ticket_gen_key( ctx, 1 ) ) != 0 )
{
return( ret );
}
return( 0 );
}
/*
* Serialize a session in the following format:
* 0 . n-1 session structure, n = sizeof(mbedtls_ssl_session)
* n . n+2 peer_cert length = m (0 if no certificate)
* n+3 . n+2+m peer cert ASN.1
*/
static int ssl_save_session( const mbedtls_ssl_session *session,
unsigned char *buf, size_t buf_len,
size_t *olen )
{
unsigned char *p = buf;
size_t left = buf_len;
#if defined(MBEDTLS_X509_CRT_PARSE_C)
size_t cert_len;
#endif /* MBEDTLS_X509_CRT_PARSE_C */
if( left < sizeof( mbedtls_ssl_session ) )
return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
memcpy( p, session, sizeof( mbedtls_ssl_session ) );
p += sizeof( mbedtls_ssl_session );
left -= sizeof( mbedtls_ssl_session );
#if defined(MBEDTLS_X509_CRT_PARSE_C)
if( session->peer_cert == NULL )
cert_len = 0;
else
cert_len = session->peer_cert->raw.len;
if( left < 3 + cert_len )
return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
*p++ = (unsigned char)( ( cert_len >> 16 ) & 0xFF );
*p++ = (unsigned char)( ( cert_len >> 8 ) & 0xFF );
*p++ = (unsigned char)( ( cert_len ) & 0xFF );
if( session->peer_cert != NULL )
memcpy( p, session->peer_cert->raw.p, cert_len );
p += cert_len;
#endif /* MBEDTLS_X509_CRT_PARSE_C */
*olen = p - buf;
return( 0 );
}
/*
* Unserialise session, see ssl_save_session()
*/
static int ssl_load_session( mbedtls_ssl_session *session,
const unsigned char *buf, size_t len )
{
const unsigned char *p = buf;
const unsigned char * const end = buf + len;
#if defined(MBEDTLS_X509_CRT_PARSE_C)
size_t cert_len;
#endif /* MBEDTLS_X509_CRT_PARSE_C */
if( sizeof( mbedtls_ssl_session ) > (size_t)( end - p ) )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
memcpy( session, p, sizeof( mbedtls_ssl_session ) );
p += sizeof( mbedtls_ssl_session );
#if defined(MBEDTLS_X509_CRT_PARSE_C)
if( 3 > (size_t)( end - p ) )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
cert_len = ( p[0] << 16 ) | ( p[1] << 8 ) | p[2];
p += 3;
if( cert_len == 0 )
{
session->peer_cert = NULL;
}
else
{
int ret;
if( cert_len > (size_t)( end - p ) )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
session->peer_cert = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) );
if( session->peer_cert == NULL )
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
mbedtls_x509_crt_init( session->peer_cert );
if( ( ret = mbedtls_x509_crt_parse_der( session->peer_cert,
p, cert_len ) ) != 0 )
{
mbedtls_x509_crt_free( session->peer_cert );
mbedtls_free( session->peer_cert );
session->peer_cert = NULL;
return( ret );
}
p += cert_len;
}
#endif /* MBEDTLS_X509_CRT_PARSE_C */
if( p != end )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
return( 0 );
}
/*
* Create session ticket, with the following structure:
*
* struct {
* opaque key_name[4];
* opaque iv[12];
* opaque encrypted_state<0..2^16-1>;
* opaque tag[16];
* } ticket;
*
* The key_name, iv, and length of encrypted_state are the additional
* authenticated data.
*/
int mbedtls_ssl_ticket_write( void *p_ticket,
const mbedtls_ssl_session *session,
unsigned char *start,
const unsigned char *end,
size_t *tlen,
uint32_t *ticket_lifetime )
{
int ret;
mbedtls_ssl_ticket_context *ctx = p_ticket;
mbedtls_ssl_ticket_key *key;
unsigned char *key_name = start;
unsigned char *iv = start + 4;
unsigned char *state_len_bytes = iv + 12;
unsigned char *state = state_len_bytes + 2;
unsigned char *tag;
size_t clear_len, ciph_len;
*tlen = 0;
if( ctx == NULL || ctx->f_rng == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
/* We need at least 4 bytes for key_name, 12 for IV, 2 for len 16 for tag,
* in addition to session itself, that will be checked when writing it. */
if( end - start < 4 + 12 + 2 + 16 )
return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
if( ( ret = ssl_ticket_update_keys( ctx ) ) != 0 )
goto cleanup;
key = &ctx->keys[ctx->active];
*ticket_lifetime = ctx->ticket_lifetime;
memcpy( key_name, key->name, 4 );
if( ( ret = ctx->f_rng( ctx->p_rng, iv, 12 ) ) != 0 )
goto cleanup;
/* Dump session state */
if( ( ret = ssl_save_session( session,
state, end - state, &clear_len ) ) != 0 ||
(unsigned long) clear_len > 65535 )
{
goto cleanup;
}
state_len_bytes[0] = ( clear_len >> 8 ) & 0xff;
state_len_bytes[1] = ( clear_len ) & 0xff;
/* Encrypt and authenticate */
tag = state + clear_len;
if( ( ret = mbedtls_cipher_auth_encrypt( &key->ctx,
iv, 12, key_name, 4 + 12 + 2,
state, clear_len, state, &ciph_len, tag, 16 ) ) != 0 )
{
goto cleanup;
}
if( ciph_len != clear_len )
{
ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
goto cleanup;
}
*tlen = 4 + 12 + 2 + 16 + ciph_len;
cleanup:
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
/*
* Select key based on name
*/
static mbedtls_ssl_ticket_key *ssl_ticket_select_key(
mbedtls_ssl_ticket_context *ctx,
const unsigned char name[4] )
{
unsigned char i;
for( i = 0; i < sizeof( ctx->keys ) / sizeof( *ctx->keys ); i++ )
if( memcmp( name, ctx->keys[i].name, 4 ) == 0 )
return( &ctx->keys[i] );
return( NULL );
}
/*
* Load session ticket (see mbedtls_ssl_ticket_write for structure)
*/
int mbedtls_ssl_ticket_parse( void *p_ticket,
mbedtls_ssl_session *session,
unsigned char *buf,
size_t len )
{
int ret;
mbedtls_ssl_ticket_context *ctx = p_ticket;
mbedtls_ssl_ticket_key *key;
unsigned char *key_name = buf;
unsigned char *iv = buf + 4;
unsigned char *enc_len_p = iv + 12;
unsigned char *ticket = enc_len_p + 2;
unsigned char *tag;
size_t enc_len, clear_len;
if( ctx == NULL || ctx->f_rng == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
/* See mbedtls_ssl_ticket_write() */
if( len < 4 + 12 + 2 + 16 )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &ctx->mutex ) ) != 0 )
return( ret );
#endif
if( ( ret = ssl_ticket_update_keys( ctx ) ) != 0 )
goto cleanup;
enc_len = ( enc_len_p[0] << 8 ) | enc_len_p[1];
tag = ticket + enc_len;
if( len != 4 + 12 + 2 + enc_len + 16 )
{
ret = MBEDTLS_ERR_SSL_BAD_INPUT_DATA;
goto cleanup;
}
/* Select key */
if( ( key = ssl_ticket_select_key( ctx, key_name ) ) == NULL )
{
/* We can't know for sure but this is a likely option unless we're
* under attack - this is only informative anyway */
ret = MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED;
goto cleanup;
}
/* Decrypt and authenticate */
if( ( ret = mbedtls_cipher_auth_decrypt( &key->ctx, iv, 12,
key_name, 4 + 12 + 2, ticket, enc_len,
ticket, &clear_len, tag, 16 ) ) != 0 )
{
if( ret == MBEDTLS_ERR_CIPHER_AUTH_FAILED )
ret = MBEDTLS_ERR_SSL_INVALID_MAC;
goto cleanup;
}
if( clear_len != enc_len )
{
ret = MBEDTLS_ERR_SSL_INTERNAL_ERROR;
goto cleanup;
}
/* Actually load session */
if( ( ret = ssl_load_session( session, ticket, clear_len ) ) != 0 )
goto cleanup;
#if defined(MBEDTLS_HAVE_TIME)
{
/* Check for expiration */
mbedtls_time_t current_time = mbedtls_time( NULL );
if( current_time < session->start ||
(uint32_t)( current_time - session->start ) > ctx->ticket_lifetime )
{
ret = MBEDTLS_ERR_SSL_SESSION_TICKET_EXPIRED;
goto cleanup;
}
}
#endif
cleanup:
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &ctx->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
#endif
return( ret );
}
/*
* Free context
*/
void mbedtls_ssl_ticket_free( mbedtls_ssl_ticket_context *ctx )
{
mbedtls_cipher_free( &ctx->keys[0].ctx );
mbedtls_cipher_free( &ctx->keys[1].ctx );
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_free( &ctx->mutex );
#endif
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_ssl_ticket_context ) );
}
#endif /* MBEDTLS_SSL_TICKET_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/ssl_ticket.c | C | apache-2.0 | 13,291 |
/*
* SSLv3/TLSv1 shared functions
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The SSL 3.0 specification was drafted by Netscape in 1996,
* and became an IETF standard in 1999.
*
* http://wp.netscape.com/eng/ssl3/
* http://www.ietf.org/rfc/rfc2246.txt
* http://www.ietf.org/rfc/rfc4346.txt
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_SSL_TLS_C)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#include "mbedtls/debug.h"
#include "mbedtls/ssl.h"
#include "mbedtls/ssl_internal.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_X509_CRT_PARSE_C)
#include "mbedtls/oid.h"
#endif
static void ssl_reset_in_out_pointers( mbedtls_ssl_context *ssl );
static uint32_t ssl_get_hs_total_len( mbedtls_ssl_context const *ssl );
/* Length of the "epoch" field in the record header */
static inline size_t ssl_ep_len( const mbedtls_ssl_context *ssl )
{
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
return( 2 );
#else
((void) ssl);
#endif
return( 0 );
}
/*
* Start a timer.
* Passing millisecs = 0 cancels a running timer.
*/
static void ssl_set_timer( mbedtls_ssl_context *ssl, uint32_t millisecs )
{
if( ssl->f_set_timer == NULL )
return;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "set_timer to %d ms", (int) millisecs ) );
ssl->f_set_timer( ssl->p_timer, millisecs / 4, millisecs );
}
/*
* Return -1 is timer is expired, 0 if it isn't.
*/
static int ssl_check_timer( mbedtls_ssl_context *ssl )
{
if( ssl->f_get_timer == NULL )
return( 0 );
if( ssl->f_get_timer( ssl->p_timer ) == 2 )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "timer expired" ) );
return( -1 );
}
return( 0 );
}
static void ssl_update_out_pointers( mbedtls_ssl_context *ssl,
mbedtls_ssl_transform *transform );
static void ssl_update_in_pointers( mbedtls_ssl_context *ssl,
mbedtls_ssl_transform *transform );
#define SSL_DONT_FORCE_FLUSH 0
#define SSL_FORCE_FLUSH 1
#if defined(MBEDTLS_SSL_PROTO_DTLS)
/* Forward declarations for functions related to message buffering. */
static void ssl_buffering_free( mbedtls_ssl_context *ssl );
static void ssl_buffering_free_slot( mbedtls_ssl_context *ssl,
uint8_t slot );
static void ssl_free_buffered_record( mbedtls_ssl_context *ssl );
static int ssl_load_buffered_message( mbedtls_ssl_context *ssl );
static int ssl_load_buffered_record( mbedtls_ssl_context *ssl );
static int ssl_buffer_message( mbedtls_ssl_context *ssl );
static int ssl_buffer_future_record( mbedtls_ssl_context *ssl );
static int ssl_next_record_is_in_datagram( mbedtls_ssl_context *ssl );
static size_t ssl_get_current_mtu( const mbedtls_ssl_context *ssl );
static size_t ssl_get_maximum_datagram_size( mbedtls_ssl_context const *ssl )
{
size_t mtu = ssl_get_current_mtu( ssl );
if( mtu != 0 && mtu < MBEDTLS_SSL_OUT_BUFFER_LEN )
return( mtu );
return( MBEDTLS_SSL_OUT_BUFFER_LEN );
}
static int ssl_get_remaining_space_in_datagram( mbedtls_ssl_context const *ssl )
{
size_t const bytes_written = ssl->out_left;
size_t const mtu = ssl_get_maximum_datagram_size( ssl );
/* Double-check that the write-index hasn't gone
* past what we can transmit in a single datagram. */
if( bytes_written > mtu )
{
/* Should never happen... */
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
return( (int) ( mtu - bytes_written ) );
}
static int ssl_get_remaining_payload_in_datagram( mbedtls_ssl_context const *ssl )
{
int ret;
size_t remaining, expansion;
size_t max_len = MBEDTLS_SSL_OUT_CONTENT_LEN;
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
const size_t mfl = mbedtls_ssl_get_max_frag_len( ssl );
if( max_len > mfl )
max_len = mfl;
/* By the standard (RFC 6066 Sect. 4), the MFL extension
* only limits the maximum record payload size, so in theory
* we would be allowed to pack multiple records of payload size
* MFL into a single datagram. However, this would mean that there's
* no way to explicitly communicate MTU restrictions to the peer.
*
* The following reduction of max_len makes sure that we never
* write datagrams larger than MFL + Record Expansion Overhead.
*/
if( max_len <= ssl->out_left )
return( 0 );
max_len -= ssl->out_left;
#endif
ret = ssl_get_remaining_space_in_datagram( ssl );
if( ret < 0 )
return( ret );
remaining = (size_t) ret;
ret = mbedtls_ssl_get_record_expansion( ssl );
if( ret < 0 )
return( ret );
expansion = (size_t) ret;
if( remaining <= expansion )
return( 0 );
remaining -= expansion;
if( remaining >= max_len )
remaining = max_len;
return( (int) remaining );
}
/*
* Double the retransmit timeout value, within the allowed range,
* returning -1 if the maximum value has already been reached.
*/
static int ssl_double_retransmit_timeout( mbedtls_ssl_context *ssl )
{
uint32_t new_timeout;
if( ssl->handshake->retransmit_timeout >= ssl->conf->hs_timeout_max )
return( -1 );
/* Implement the final paragraph of RFC 6347 section 4.1.1.1
* in the following way: after the initial transmission and a first
* retransmission, back off to a temporary estimated MTU of 508 bytes.
* This value is guaranteed to be deliverable (if not guaranteed to be
* delivered) of any compliant IPv4 (and IPv6) network, and should work
* on most non-IP stacks too. */
if( ssl->handshake->retransmit_timeout != ssl->conf->hs_timeout_min )
{
ssl->handshake->mtu = 508;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "mtu autoreduction to %d bytes", ssl->handshake->mtu ) );
}
new_timeout = 2 * ssl->handshake->retransmit_timeout;
/* Avoid arithmetic overflow and range overflow */
if( new_timeout < ssl->handshake->retransmit_timeout ||
new_timeout > ssl->conf->hs_timeout_max )
{
new_timeout = ssl->conf->hs_timeout_max;
}
ssl->handshake->retransmit_timeout = new_timeout;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "update timeout value to %d millisecs",
ssl->handshake->retransmit_timeout ) );
return( 0 );
}
static void ssl_reset_retransmit_timeout( mbedtls_ssl_context *ssl )
{
ssl->handshake->retransmit_timeout = ssl->conf->hs_timeout_min;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "update timeout value to %d millisecs",
ssl->handshake->retransmit_timeout ) );
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
/*
* Convert max_fragment_length codes to length.
* RFC 6066 says:
* enum{
* 2^9(1), 2^10(2), 2^11(3), 2^12(4), (255)
* } MaxFragmentLength;
* and we add 0 -> extension unused
*/
static unsigned int ssl_mfl_code_to_length( int mfl )
{
switch( mfl )
{
case MBEDTLS_SSL_MAX_FRAG_LEN_NONE:
return ( MBEDTLS_TLS_EXT_ADV_CONTENT_LEN );
case MBEDTLS_SSL_MAX_FRAG_LEN_512:
return 512;
case MBEDTLS_SSL_MAX_FRAG_LEN_1024:
return 1024;
case MBEDTLS_SSL_MAX_FRAG_LEN_2048:
return 2048;
case MBEDTLS_SSL_MAX_FRAG_LEN_4096:
return 4096;
default:
return ( MBEDTLS_TLS_EXT_ADV_CONTENT_LEN );
}
}
#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
#if defined(MBEDTLS_SSL_CLI_C)
static int ssl_session_copy( mbedtls_ssl_session *dst, const mbedtls_ssl_session *src )
{
mbedtls_ssl_session_free( dst );
memcpy( dst, src, sizeof( mbedtls_ssl_session ) );
#if defined(MBEDTLS_X509_CRT_PARSE_C)
if( src->peer_cert != NULL )
{
int ret;
dst->peer_cert = mbedtls_calloc( 1, sizeof(mbedtls_x509_crt) );
if( dst->peer_cert == NULL )
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
mbedtls_x509_crt_init( dst->peer_cert );
if( ( ret = mbedtls_x509_crt_parse_der( dst->peer_cert, src->peer_cert->raw.p,
src->peer_cert->raw.len ) ) != 0 )
{
mbedtls_free( dst->peer_cert );
dst->peer_cert = NULL;
return( ret );
}
}
#endif /* MBEDTLS_X509_CRT_PARSE_C */
#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
if( src->ticket != NULL )
{
dst->ticket = mbedtls_calloc( 1, src->ticket_len );
if( dst->ticket == NULL )
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
memcpy( dst->ticket, src->ticket, src->ticket_len );
}
#endif /* MBEDTLS_SSL_SESSION_TICKETS && MBEDTLS_SSL_CLI_C */
return( 0 );
}
#endif /* MBEDTLS_SSL_CLI_C */
#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
int (*mbedtls_ssl_hw_record_init)( mbedtls_ssl_context *ssl,
const unsigned char *key_enc, const unsigned char *key_dec,
size_t keylen,
const unsigned char *iv_enc, const unsigned char *iv_dec,
size_t ivlen,
const unsigned char *mac_enc, const unsigned char *mac_dec,
size_t maclen ) = NULL;
int (*mbedtls_ssl_hw_record_activate)( mbedtls_ssl_context *ssl, int direction) = NULL;
int (*mbedtls_ssl_hw_record_reset)( mbedtls_ssl_context *ssl ) = NULL;
int (*mbedtls_ssl_hw_record_write)( mbedtls_ssl_context *ssl ) = NULL;
int (*mbedtls_ssl_hw_record_read)( mbedtls_ssl_context *ssl ) = NULL;
int (*mbedtls_ssl_hw_record_finish)( mbedtls_ssl_context *ssl ) = NULL;
#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
/*
* Key material generation
*/
#if defined(MBEDTLS_SSL_PROTO_SSL3)
static int ssl3_prf( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
unsigned char *dstbuf, size_t dlen )
{
int ret = 0;
size_t i;
mbedtls_md5_context md5;
mbedtls_sha1_context sha1;
unsigned char padding[16];
unsigned char sha1sum[20];
((void)label);
mbedtls_md5_init( &md5 );
mbedtls_sha1_init( &sha1 );
/*
* SSLv3:
* block =
* MD5( secret + SHA1( 'A' + secret + random ) ) +
* MD5( secret + SHA1( 'BB' + secret + random ) ) +
* MD5( secret + SHA1( 'CCC' + secret + random ) ) +
* ...
*/
for( i = 0; i < dlen / 16; i++ )
{
memset( padding, (unsigned char) ('A' + i), 1 + i );
if( ( ret = mbedtls_sha1_starts_ret( &sha1 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha1_update_ret( &sha1, padding, 1 + i ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha1_update_ret( &sha1, secret, slen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha1_update_ret( &sha1, random, rlen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_sha1_finish_ret( &sha1, sha1sum ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_starts_ret( &md5 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_update_ret( &md5, secret, slen ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_update_ret( &md5, sha1sum, 20 ) ) != 0 )
goto exit;
if( ( ret = mbedtls_md5_finish_ret( &md5, dstbuf + i * 16 ) ) != 0 )
goto exit;
}
exit:
mbedtls_md5_free( &md5 );
mbedtls_sha1_free( &sha1 );
mbedtls_platform_zeroize( padding, sizeof( padding ) );
mbedtls_platform_zeroize( sha1sum, sizeof( sha1sum ) );
return( ret );
}
#endif /* MBEDTLS_SSL_PROTO_SSL3 */
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
static int tls1_prf( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
unsigned char *dstbuf, size_t dlen )
{
size_t nb, hs;
size_t i, j, k;
const unsigned char *S1, *S2;
unsigned char tmp[128];
unsigned char h_i[20];
const mbedtls_md_info_t *md_info;
mbedtls_md_context_t md_ctx;
int ret;
mbedtls_md_init( &md_ctx );
if( sizeof( tmp ) < 20 + strlen( label ) + rlen )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
hs = ( slen + 1 ) / 2;
S1 = secret;
S2 = secret + slen - hs;
nb = strlen( label );
memcpy( tmp + 20, label, nb );
memcpy( tmp + 20 + nb, random, rlen );
nb += rlen;
/*
* First compute P_md5(secret,label+random)[0..dlen]
*/
if( ( md_info = mbedtls_md_info_from_type( MBEDTLS_MD_MD5 ) ) == NULL )
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 )
return( ret );
mbedtls_md_hmac_starts( &md_ctx, S1, hs );
mbedtls_md_hmac_update( &md_ctx, tmp + 20, nb );
mbedtls_md_hmac_finish( &md_ctx, 4 + tmp );
for( i = 0; i < dlen; i += 16 )
{
mbedtls_md_hmac_reset ( &md_ctx );
mbedtls_md_hmac_update( &md_ctx, 4 + tmp, 16 + nb );
mbedtls_md_hmac_finish( &md_ctx, h_i );
mbedtls_md_hmac_reset ( &md_ctx );
mbedtls_md_hmac_update( &md_ctx, 4 + tmp, 16 );
mbedtls_md_hmac_finish( &md_ctx, 4 + tmp );
k = ( i + 16 > dlen ) ? dlen % 16 : 16;
for( j = 0; j < k; j++ )
dstbuf[i + j] = h_i[j];
}
mbedtls_md_free( &md_ctx );
/*
* XOR out with P_sha1(secret,label+random)[0..dlen]
*/
if( ( md_info = mbedtls_md_info_from_type( MBEDTLS_MD_SHA1 ) ) == NULL )
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
if( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 )
return( ret );
mbedtls_md_hmac_starts( &md_ctx, S2, hs );
mbedtls_md_hmac_update( &md_ctx, tmp + 20, nb );
mbedtls_md_hmac_finish( &md_ctx, tmp );
for( i = 0; i < dlen; i += 20 )
{
mbedtls_md_hmac_reset ( &md_ctx );
mbedtls_md_hmac_update( &md_ctx, tmp, 20 + nb );
mbedtls_md_hmac_finish( &md_ctx, h_i );
mbedtls_md_hmac_reset ( &md_ctx );
mbedtls_md_hmac_update( &md_ctx, tmp, 20 );
mbedtls_md_hmac_finish( &md_ctx, tmp );
k = ( i + 20 > dlen ) ? dlen % 20 : 20;
for( j = 0; j < k; j++ )
dstbuf[i + j] = (unsigned char)( dstbuf[i + j] ^ h_i[j] );
}
mbedtls_md_free( &md_ctx );
mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
mbedtls_platform_zeroize( h_i, sizeof( h_i ) );
return( 0 );
}
#endif /* MBEDTLS_SSL_PROTO_TLS1) || MBEDTLS_SSL_PROTO_TLS1_1 */
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
static int tls_prf_generic( mbedtls_md_type_t md_type,
const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
unsigned char *dstbuf, size_t dlen )
{
size_t nb;
size_t i, j, k, md_len;
unsigned char tmp[128];
unsigned char h_i[MBEDTLS_MD_MAX_SIZE];
const mbedtls_md_info_t *md_info;
mbedtls_md_context_t md_ctx;
int ret;
mbedtls_md_init( &md_ctx );
if( ( md_info = mbedtls_md_info_from_type( md_type ) ) == NULL )
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
md_len = mbedtls_md_get_size( md_info );
if( sizeof( tmp ) < md_len + strlen( label ) + rlen )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
nb = strlen( label );
memcpy( tmp + md_len, label, nb );
memcpy( tmp + md_len + nb, random, rlen );
nb += rlen;
/*
* Compute P_<hash>(secret, label + random)[0..dlen]
*/
if ( ( ret = mbedtls_md_setup( &md_ctx, md_info, 1 ) ) != 0 )
return( ret );
mbedtls_md_hmac_starts( &md_ctx, secret, slen );
mbedtls_md_hmac_update( &md_ctx, tmp + md_len, nb );
mbedtls_md_hmac_finish( &md_ctx, tmp );
for( i = 0; i < dlen; i += md_len )
{
mbedtls_md_hmac_reset ( &md_ctx );
mbedtls_md_hmac_update( &md_ctx, tmp, md_len + nb );
mbedtls_md_hmac_finish( &md_ctx, h_i );
mbedtls_md_hmac_reset ( &md_ctx );
mbedtls_md_hmac_update( &md_ctx, tmp, md_len );
mbedtls_md_hmac_finish( &md_ctx, tmp );
k = ( i + md_len > dlen ) ? dlen % md_len : md_len;
for( j = 0; j < k; j++ )
dstbuf[i + j] = h_i[j];
}
mbedtls_md_free( &md_ctx );
mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
mbedtls_platform_zeroize( h_i, sizeof( h_i ) );
return( 0 );
}
#if defined(MBEDTLS_SHA256_C)
static int tls_prf_sha256( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
unsigned char *dstbuf, size_t dlen )
{
return( tls_prf_generic( MBEDTLS_MD_SHA256, secret, slen,
label, random, rlen, dstbuf, dlen ) );
}
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
static int tls_prf_sha384( const unsigned char *secret, size_t slen,
const char *label,
const unsigned char *random, size_t rlen,
unsigned char *dstbuf, size_t dlen )
{
return( tls_prf_generic( MBEDTLS_MD_SHA384, secret, slen,
label, random, rlen, dstbuf, dlen ) );
}
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
static void ssl_update_checksum_start( mbedtls_ssl_context *, const unsigned char *, size_t );
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1)
static void ssl_update_checksum_md5sha1( mbedtls_ssl_context *, const unsigned char *, size_t );
#endif
#if defined(MBEDTLS_SSL_PROTO_SSL3)
static void ssl_calc_verify_ssl( mbedtls_ssl_context *, unsigned char * );
static void ssl_calc_finished_ssl( mbedtls_ssl_context *, unsigned char *, int );
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
static void ssl_calc_verify_tls( mbedtls_ssl_context *, unsigned char * );
static void ssl_calc_finished_tls( mbedtls_ssl_context *, unsigned char *, int );
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
#if defined(MBEDTLS_SHA256_C)
static void ssl_update_checksum_sha256( mbedtls_ssl_context *, const unsigned char *, size_t );
static void ssl_calc_verify_tls_sha256( mbedtls_ssl_context *,unsigned char * );
static void ssl_calc_finished_tls_sha256( mbedtls_ssl_context *,unsigned char *, int );
#endif
#if defined(MBEDTLS_SHA512_C)
static void ssl_update_checksum_sha384( mbedtls_ssl_context *, const unsigned char *, size_t );
static void ssl_calc_verify_tls_sha384( mbedtls_ssl_context *, unsigned char * );
static void ssl_calc_finished_tls_sha384( mbedtls_ssl_context *, unsigned char *, int );
#endif
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
int mbedtls_ssl_derive_keys( mbedtls_ssl_context *ssl )
{
int ret = 0;
unsigned char tmp[64];
unsigned char keyblk[256];
unsigned char *key1;
unsigned char *key2;
unsigned char *mac_enc;
unsigned char *mac_dec;
size_t mac_key_len;
size_t iv_copy_len;
const mbedtls_cipher_info_t *cipher_info;
const mbedtls_md_info_t *md_info;
mbedtls_ssl_session *session = ssl->session_negotiate;
mbedtls_ssl_transform *transform = ssl->transform_negotiate;
mbedtls_ssl_handshake_params *handshake = ssl->handshake;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> derive keys" ) );
cipher_info = mbedtls_cipher_info_from_type( transform->ciphersuite_info->cipher );
if( cipher_info == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "cipher info for %d not found",
transform->ciphersuite_info->cipher ) );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
md_info = mbedtls_md_info_from_type( transform->ciphersuite_info->mac );
if( md_info == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "mbedtls_md info for %d not found",
transform->ciphersuite_info->mac ) );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
/*
* Set appropriate PRF function and other SSL / TLS / TLS1.2 functions
*/
#if defined(MBEDTLS_SSL_PROTO_SSL3)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
{
handshake->tls_prf = ssl3_prf;
handshake->calc_verify = ssl_calc_verify_ssl;
handshake->calc_finished = ssl_calc_finished_ssl;
}
else
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 )
{
handshake->tls_prf = tls1_prf;
handshake->calc_verify = ssl_calc_verify_tls;
handshake->calc_finished = ssl_calc_finished_tls;
}
else
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
#if defined(MBEDTLS_SHA512_C)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 &&
transform->ciphersuite_info->mac == MBEDTLS_MD_SHA384 )
{
handshake->tls_prf = tls_prf_sha384;
handshake->calc_verify = ssl_calc_verify_tls_sha384;
handshake->calc_finished = ssl_calc_finished_tls_sha384;
}
else
#endif
#if defined(MBEDTLS_SHA256_C)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
{
handshake->tls_prf = tls_prf_sha256;
handshake->calc_verify = ssl_calc_verify_tls_sha256;
handshake->calc_finished = ssl_calc_finished_tls_sha256;
}
else
#endif
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
/*
* SSLv3:
* master =
* MD5( premaster + SHA1( 'A' + premaster + randbytes ) ) +
* MD5( premaster + SHA1( 'BB' + premaster + randbytes ) ) +
* MD5( premaster + SHA1( 'CCC' + premaster + randbytes ) )
*
* TLSv1+:
* master = PRF( premaster, "master secret", randbytes )[0..47]
*/
if( handshake->resume == 0 )
{
MBEDTLS_SSL_DEBUG_BUF( 3, "premaster secret", handshake->premaster,
handshake->pmslen );
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
if( ssl->handshake->extended_ms == MBEDTLS_SSL_EXTENDED_MS_ENABLED )
{
unsigned char session_hash[48];
size_t hash_len;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "using extended master secret" ) );
ssl->handshake->calc_verify( ssl, session_hash );
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
{
#if defined(MBEDTLS_SHA512_C)
if( ssl->transform_negotiate->ciphersuite_info->mac ==
MBEDTLS_MD_SHA384 )
{
hash_len = 48;
}
else
#endif
hash_len = 32;
}
else
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
hash_len = 36;
MBEDTLS_SSL_DEBUG_BUF( 3, "session hash", session_hash, hash_len );
ret = handshake->tls_prf( handshake->premaster, handshake->pmslen,
"extended master secret",
session_hash, hash_len,
session->master, 48 );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "prf", ret );
return( ret );
}
}
else
#endif
ret = handshake->tls_prf( handshake->premaster, handshake->pmslen,
"master secret",
handshake->randbytes, 64,
session->master, 48 );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "prf", ret );
return( ret );
}
mbedtls_platform_zeroize( handshake->premaster,
sizeof(handshake->premaster) );
}
else
MBEDTLS_SSL_DEBUG_MSG( 3, ( "no premaster (session resumed)" ) );
/*
* Swap the client and server random values.
*/
memcpy( tmp, handshake->randbytes, 64 );
memcpy( handshake->randbytes, tmp + 32, 32 );
memcpy( handshake->randbytes + 32, tmp, 32 );
mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
/*
* SSLv3:
* key block =
* MD5( master + SHA1( 'A' + master + randbytes ) ) +
* MD5( master + SHA1( 'BB' + master + randbytes ) ) +
* MD5( master + SHA1( 'CCC' + master + randbytes ) ) +
* MD5( master + SHA1( 'DDDD' + master + randbytes ) ) +
* ...
*
* TLSv1:
* key block = PRF( master, "key expansion", randbytes )
*/
ret = handshake->tls_prf( session->master, 48, "key expansion",
handshake->randbytes, 64, keyblk, 256 );
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "prf", ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ciphersuite = %s",
mbedtls_ssl_get_ciphersuite_name( session->ciphersuite ) ) );
MBEDTLS_SSL_DEBUG_BUF( 3, "master secret", session->master, 48 );
MBEDTLS_SSL_DEBUG_BUF( 4, "random bytes", handshake->randbytes, 64 );
MBEDTLS_SSL_DEBUG_BUF( 4, "key block", keyblk, 256 );
mbedtls_platform_zeroize( handshake->randbytes,
sizeof( handshake->randbytes ) );
/*
* Determine the appropriate key, IV and MAC length.
*/
transform->keylen = cipher_info->key_bitlen / 8;
if( cipher_info->mode == MBEDTLS_MODE_GCM ||
cipher_info->mode == MBEDTLS_MODE_CCM ||
cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY )
{
size_t taglen, explicit_ivlen;
transform->maclen = 0;
mac_key_len = 0;
/* All modes haves 96-bit IVs;
* GCM and CCM has 4 implicit and 8 explicit bytes
* ChachaPoly has all 12 bytes implicit
*/
transform->ivlen = 12;
if( cipher_info->mode == MBEDTLS_MODE_CHACHAPOLY )
transform->fixed_ivlen = 12;
else
transform->fixed_ivlen = 4;
/* All modes have 128-bit tags, except CCM_8 (ciphersuite flag) */
taglen = transform->ciphersuite_info->flags &
MBEDTLS_CIPHERSUITE_SHORT_TAG ? 8 : 16;
/* Minimum length of encrypted record */
explicit_ivlen = transform->ivlen - transform->fixed_ivlen;
transform->minlen = explicit_ivlen + taglen;
}
else
{
/* Initialize HMAC contexts */
if( ( ret = mbedtls_md_setup( &transform->md_ctx_enc, md_info, 1 ) ) != 0 ||
( ret = mbedtls_md_setup( &transform->md_ctx_dec, md_info, 1 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_setup", ret );
return( ret );
}
/* Get MAC length */
mac_key_len = mbedtls_md_get_size( md_info );
transform->maclen = mac_key_len;
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
/*
* If HMAC is to be truncated, we shall keep the leftmost bytes,
* (rfc 6066 page 13 or rfc 2104 section 4),
* so we only need to adjust the length here.
*/
if( session->trunc_hmac == MBEDTLS_SSL_TRUNC_HMAC_ENABLED )
{
transform->maclen = MBEDTLS_SSL_TRUNCATED_HMAC_LEN;
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT)
/* Fall back to old, non-compliant version of the truncated
* HMAC implementation which also truncates the key
* (Mbed TLS versions from 1.3 to 2.6.0) */
mac_key_len = transform->maclen;
#endif
}
#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
/* IV length */
transform->ivlen = cipher_info->iv_size;
/* Minimum length */
if( cipher_info->mode == MBEDTLS_MODE_STREAM )
transform->minlen = transform->maclen;
else
{
/*
* GenericBlockCipher:
* 1. if EtM is in use: one block plus MAC
* otherwise: * first multiple of blocklen greater than maclen
* 2. IV except for SSL3 and TLS 1.0
*/
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
if( session->encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED )
{
transform->minlen = transform->maclen
+ cipher_info->block_size;
}
else
#endif
{
transform->minlen = transform->maclen
+ cipher_info->block_size
- transform->maclen % cipher_info->block_size;
}
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ||
ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_1 )
; /* No need to adjust minlen */
else
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_2 ||
ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3 )
{
transform->minlen += transform->ivlen;
}
else
#endif
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
}
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "keylen: %d, minlen: %d, ivlen: %d, maclen: %d",
transform->keylen, transform->minlen, transform->ivlen,
transform->maclen ) );
/*
* Finally setup the cipher contexts, IVs and MAC secrets.
*/
#if defined(MBEDTLS_SSL_CLI_C)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
{
key1 = keyblk + mac_key_len * 2;
key2 = keyblk + mac_key_len * 2 + transform->keylen;
mac_enc = keyblk;
mac_dec = keyblk + mac_key_len;
/*
* This is not used in TLS v1.1.
*/
iv_copy_len = ( transform->fixed_ivlen ) ?
transform->fixed_ivlen : transform->ivlen;
memcpy( transform->iv_enc, key2 + transform->keylen, iv_copy_len );
memcpy( transform->iv_dec, key2 + transform->keylen + iv_copy_len,
iv_copy_len );
}
else
#endif /* MBEDTLS_SSL_CLI_C */
#if defined(MBEDTLS_SSL_SRV_C)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
{
key1 = keyblk + mac_key_len * 2 + transform->keylen;
key2 = keyblk + mac_key_len * 2;
mac_enc = keyblk + mac_key_len;
mac_dec = keyblk;
/*
* This is not used in TLS v1.1.
*/
iv_copy_len = ( transform->fixed_ivlen ) ?
transform->fixed_ivlen : transform->ivlen;
memcpy( transform->iv_dec, key1 + transform->keylen, iv_copy_len );
memcpy( transform->iv_enc, key1 + transform->keylen + iv_copy_len,
iv_copy_len );
}
else
#endif /* MBEDTLS_SSL_SRV_C */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#if defined(MBEDTLS_SSL_PROTO_SSL3)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
{
if( mac_key_len > sizeof transform->mac_enc )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
memcpy( transform->mac_enc, mac_enc, mac_key_len );
memcpy( transform->mac_dec, mac_dec, mac_key_len );
}
else
#endif /* MBEDTLS_SSL_PROTO_SSL3 */
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 )
{
/* For HMAC-based ciphersuites, initialize the HMAC transforms.
For AEAD-based ciphersuites, there is nothing to do here. */
if( mac_key_len != 0 )
{
mbedtls_md_hmac_starts( &transform->md_ctx_enc, mac_enc, mac_key_len );
mbedtls_md_hmac_starts( &transform->md_ctx_dec, mac_dec, mac_key_len );
}
}
else
#endif
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
if( mbedtls_ssl_hw_record_init != NULL )
{
int ret = 0;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_init()" ) );
if( ( ret = mbedtls_ssl_hw_record_init( ssl, key1, key2, transform->keylen,
transform->iv_enc, transform->iv_dec,
iv_copy_len,
mac_enc, mac_dec,
mac_key_len ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_init", ret );
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
}
}
#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
#if defined(MBEDTLS_SSL_EXPORT_KEYS)
if( ssl->conf->f_export_keys != NULL )
{
ssl->conf->f_export_keys( ssl->conf->p_export_keys,
session->master, keyblk,
mac_key_len, transform->keylen,
iv_copy_len );
}
#endif
if( ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_enc,
cipher_info ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret );
return( ret );
}
if( ( ret = mbedtls_cipher_setup( &transform->cipher_ctx_dec,
cipher_info ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setup", ret );
return( ret );
}
if( ( ret = mbedtls_cipher_setkey( &transform->cipher_ctx_enc, key1,
cipher_info->key_bitlen,
MBEDTLS_ENCRYPT ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setkey", ret );
return( ret );
}
if( ( ret = mbedtls_cipher_setkey( &transform->cipher_ctx_dec, key2,
cipher_info->key_bitlen,
MBEDTLS_DECRYPT ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_setkey", ret );
return( ret );
}
#if defined(MBEDTLS_CIPHER_MODE_CBC)
if( cipher_info->mode == MBEDTLS_MODE_CBC )
{
if( ( ret = mbedtls_cipher_set_padding_mode( &transform->cipher_ctx_enc,
MBEDTLS_PADDING_NONE ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_set_padding_mode", ret );
return( ret );
}
if( ( ret = mbedtls_cipher_set_padding_mode( &transform->cipher_ctx_dec,
MBEDTLS_PADDING_NONE ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_set_padding_mode", ret );
return( ret );
}
}
#endif /* MBEDTLS_CIPHER_MODE_CBC */
mbedtls_platform_zeroize( keyblk, sizeof( keyblk ) );
#if defined(MBEDTLS_ZLIB_SUPPORT)
// Initialize compression
//
if( session->compression == MBEDTLS_SSL_COMPRESS_DEFLATE )
{
if( ssl->compress_buf == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "Allocating compression buffer" ) );
ssl->compress_buf = mbedtls_calloc( 1, MBEDTLS_SSL_COMPRESS_BUFFER_LEN );
if( ssl->compress_buf == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed",
MBEDTLS_SSL_COMPRESS_BUFFER_LEN ) );
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
}
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "Initializing zlib states" ) );
memset( &transform->ctx_deflate, 0, sizeof( transform->ctx_deflate ) );
memset( &transform->ctx_inflate, 0, sizeof( transform->ctx_inflate ) );
if( deflateInit( &transform->ctx_deflate,
Z_DEFAULT_COMPRESSION ) != Z_OK ||
inflateInit( &transform->ctx_inflate ) != Z_OK )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Failed to initialize compression" ) );
return( MBEDTLS_ERR_SSL_COMPRESSION_FAILED );
}
}
#endif /* MBEDTLS_ZLIB_SUPPORT */
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= derive keys" ) );
return( 0 );
}
#if defined(MBEDTLS_SSL_PROTO_SSL3)
void ssl_calc_verify_ssl( mbedtls_ssl_context *ssl, unsigned char hash[36] )
{
mbedtls_md5_context md5;
mbedtls_sha1_context sha1;
unsigned char pad_1[48];
unsigned char pad_2[48];
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify ssl" ) );
mbedtls_md5_init( &md5 );
mbedtls_sha1_init( &sha1 );
mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 );
mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 );
memset( pad_1, 0x36, 48 );
memset( pad_2, 0x5C, 48 );
mbedtls_md5_update_ret( &md5, ssl->session_negotiate->master, 48 );
mbedtls_md5_update_ret( &md5, pad_1, 48 );
mbedtls_md5_finish_ret( &md5, hash );
mbedtls_md5_starts_ret( &md5 );
mbedtls_md5_update_ret( &md5, ssl->session_negotiate->master, 48 );
mbedtls_md5_update_ret( &md5, pad_2, 48 );
mbedtls_md5_update_ret( &md5, hash, 16 );
mbedtls_md5_finish_ret( &md5, hash );
mbedtls_sha1_update_ret( &sha1, ssl->session_negotiate->master, 48 );
mbedtls_sha1_update_ret( &sha1, pad_1, 40 );
mbedtls_sha1_finish_ret( &sha1, hash + 16 );
mbedtls_sha1_starts_ret( &sha1 );
mbedtls_sha1_update_ret( &sha1, ssl->session_negotiate->master, 48 );
mbedtls_sha1_update_ret( &sha1, pad_2, 40 );
mbedtls_sha1_update_ret( &sha1, hash + 16, 20 );
mbedtls_sha1_finish_ret( &sha1, hash + 16 );
MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 36 );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) );
mbedtls_md5_free( &md5 );
mbedtls_sha1_free( &sha1 );
return;
}
#endif /* MBEDTLS_SSL_PROTO_SSL3 */
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
void ssl_calc_verify_tls( mbedtls_ssl_context *ssl, unsigned char hash[36] )
{
mbedtls_md5_context md5;
mbedtls_sha1_context sha1;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify tls" ) );
mbedtls_md5_init( &md5 );
mbedtls_sha1_init( &sha1 );
mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 );
mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 );
mbedtls_md5_finish_ret( &md5, hash );
mbedtls_sha1_finish_ret( &sha1, hash + 16 );
MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 36 );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) );
mbedtls_md5_free( &md5 );
mbedtls_sha1_free( &sha1 );
return;
}
#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
#if defined(MBEDTLS_SHA256_C)
void ssl_calc_verify_tls_sha256( mbedtls_ssl_context *ssl, unsigned char hash[32] )
{
mbedtls_sha256_context sha256;
mbedtls_sha256_init( &sha256 );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify sha256" ) );
mbedtls_sha256_clone( &sha256, &ssl->handshake->fin_sha256 );
mbedtls_sha256_finish_ret( &sha256, hash );
MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 32 );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) );
mbedtls_sha256_free( &sha256 );
return;
}
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
void ssl_calc_verify_tls_sha384( mbedtls_ssl_context *ssl, unsigned char hash[48] )
{
mbedtls_sha512_context sha512;
mbedtls_sha512_init( &sha512 );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc verify sha384" ) );
mbedtls_sha512_clone( &sha512, &ssl->handshake->fin_sha512 );
mbedtls_sha512_finish_ret( &sha512, hash );
MBEDTLS_SSL_DEBUG_BUF( 3, "calculated verify result", hash, 48 );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc verify" ) );
mbedtls_sha512_free( &sha512 );
return;
}
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl, mbedtls_key_exchange_type_t key_ex )
{
unsigned char *p = ssl->handshake->premaster;
unsigned char *end = p + sizeof( ssl->handshake->premaster );
const unsigned char *psk = ssl->conf->psk;
size_t psk_len = ssl->conf->psk_len;
/* If the psk callback was called, use its result */
if( ssl->handshake->psk != NULL )
{
psk = ssl->handshake->psk;
psk_len = ssl->handshake->psk_len;
}
/*
* PMS = struct {
* opaque other_secret<0..2^16-1>;
* opaque psk<0..2^16-1>;
* };
* with "other_secret" depending on the particular key exchange
*/
#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
if( key_ex == MBEDTLS_KEY_EXCHANGE_PSK )
{
if( end - p < 2 )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
*(p++) = (unsigned char)( psk_len >> 8 );
*(p++) = (unsigned char)( psk_len );
if( end < p || (size_t)( end - p ) < psk_len )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
memset( p, 0, psk_len );
p += psk_len;
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
if( key_ex == MBEDTLS_KEY_EXCHANGE_RSA_PSK )
{
/*
* other_secret already set by the ClientKeyExchange message,
* and is 48 bytes long
*/
if( end - p < 2 )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
*p++ = 0;
*p++ = 48;
p += 48;
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
if( key_ex == MBEDTLS_KEY_EXCHANGE_DHE_PSK )
{
int ret;
size_t len;
/* Write length only when we know the actual value */
if( ( ret = mbedtls_dhm_calc_secret( &ssl->handshake->dhm_ctx,
p + 2, end - ( p + 2 ), &len,
ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_dhm_calc_secret", ret );
return( ret );
}
*(p++) = (unsigned char)( len >> 8 );
*(p++) = (unsigned char)( len );
p += len;
MBEDTLS_SSL_DEBUG_MPI( 3, "DHM: K ", &ssl->handshake->dhm_ctx.K );
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
if( key_ex == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK )
{
int ret;
size_t zlen;
if( ( ret = mbedtls_ecdh_calc_secret( &ssl->handshake->ecdh_ctx, &zlen,
p + 2, end - ( p + 2 ),
ssl->conf->f_rng, ssl->conf->p_rng ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ecdh_calc_secret", ret );
return( ret );
}
*(p++) = (unsigned char)( zlen >> 8 );
*(p++) = (unsigned char)( zlen );
p += zlen;
MBEDTLS_SSL_DEBUG_ECDH( 3, &ssl->handshake->ecdh_ctx,
MBEDTLS_DEBUG_ECDH_Z );
}
else
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
/* opaque psk<0..2^16-1>; */
if( end - p < 2 )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
*(p++) = (unsigned char)( psk_len >> 8 );
*(p++) = (unsigned char)( psk_len );
if( end < p || (size_t)( end - p ) < psk_len )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
memcpy( p, psk, psk_len );
p += psk_len;
ssl->handshake->pmslen = p - ssl->handshake->premaster;
return( 0 );
}
#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
#if defined(MBEDTLS_SSL_PROTO_SSL3)
/*
* SSLv3.0 MAC functions
*/
#define SSL_MAC_MAX_BYTES 20 /* MD-5 or SHA-1 */
static void ssl_mac( mbedtls_md_context_t *md_ctx,
const unsigned char *secret,
const unsigned char *buf, size_t len,
const unsigned char *ctr, int type,
unsigned char out[SSL_MAC_MAX_BYTES] )
{
unsigned char header[11];
unsigned char padding[48];
int padlen;
int md_size = mbedtls_md_get_size( md_ctx->md_info );
int md_type = mbedtls_md_get_type( md_ctx->md_info );
/* Only MD5 and SHA-1 supported */
if( md_type == MBEDTLS_MD_MD5 )
padlen = 48;
else
padlen = 40;
memcpy( header, ctr, 8 );
header[ 8] = (unsigned char) type;
header[ 9] = (unsigned char)( len >> 8 );
header[10] = (unsigned char)( len );
memset( padding, 0x36, padlen );
mbedtls_md_starts( md_ctx );
mbedtls_md_update( md_ctx, secret, md_size );
mbedtls_md_update( md_ctx, padding, padlen );
mbedtls_md_update( md_ctx, header, 11 );
mbedtls_md_update( md_ctx, buf, len );
mbedtls_md_finish( md_ctx, out );
memset( padding, 0x5C, padlen );
mbedtls_md_starts( md_ctx );
mbedtls_md_update( md_ctx, secret, md_size );
mbedtls_md_update( md_ctx, padding, padlen );
mbedtls_md_update( md_ctx, out, md_size );
mbedtls_md_finish( md_ctx, out );
}
#endif /* MBEDTLS_SSL_PROTO_SSL3 */
#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER) || \
( defined(MBEDTLS_CIPHER_MODE_CBC) && \
( defined(MBEDTLS_AES_C) || defined(MBEDTLS_CAMELLIA_C) || defined(MBEDTLS_ARIA_C)) )
#define SSL_SOME_MODES_USE_MAC
#endif
/* The function below is only used in the Lucky 13 counter-measure in
* ssl_decrypt_buf(). These are the defines that guard the call site. */
#if defined(SSL_SOME_MODES_USE_MAC) && \
( defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_2) )
/* This function makes sure every byte in the memory region is accessed
* (in ascending addresses order) */
static void ssl_read_memory( unsigned char *p, size_t len )
{
unsigned char acc = 0;
volatile unsigned char force;
for( ; len != 0; p++, len-- )
acc ^= *p;
force = acc;
(void) force;
}
#endif /* SSL_SOME_MODES_USE_MAC && ( TLS1 || TLS1_1 || TLS1_2 ) */
/*
* Encryption/decryption functions
*/
static int ssl_encrypt_buf( mbedtls_ssl_context *ssl )
{
mbedtls_cipher_mode_t mode;
int auth_done = 0;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> encrypt buf" ) );
if( ssl->session_out == NULL || ssl->transform_out == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
mode = mbedtls_cipher_get_cipher_mode( &ssl->transform_out->cipher_ctx_enc );
MBEDTLS_SSL_DEBUG_BUF( 4, "before encrypt: output payload",
ssl->out_msg, ssl->out_msglen );
/*
* Add MAC before if needed
*/
#if defined(SSL_SOME_MODES_USE_MAC)
if( mode == MBEDTLS_MODE_STREAM ||
( mode == MBEDTLS_MODE_CBC
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
&& ssl->session_out->encrypt_then_mac == MBEDTLS_SSL_ETM_DISABLED
#endif
) )
{
#if defined(MBEDTLS_SSL_PROTO_SSL3)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
{
unsigned char mac[SSL_MAC_MAX_BYTES];
ssl_mac( &ssl->transform_out->md_ctx_enc,
ssl->transform_out->mac_enc,
ssl->out_msg, ssl->out_msglen,
ssl->out_ctr, ssl->out_msgtype,
mac );
memcpy( ssl->out_msg + ssl->out_msglen, mac, ssl->transform_out->maclen );
}
else
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 )
{
unsigned char mac[MBEDTLS_SSL_MAC_ADD];
mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, ssl->out_ctr, 8 );
mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, ssl->out_hdr, 3 );
mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, ssl->out_len, 2 );
mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc,
ssl->out_msg, ssl->out_msglen );
mbedtls_md_hmac_finish( &ssl->transform_out->md_ctx_enc, mac );
mbedtls_md_hmac_reset( &ssl->transform_out->md_ctx_enc );
memcpy( ssl->out_msg + ssl->out_msglen, mac, ssl->transform_out->maclen );
}
else
#endif
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
MBEDTLS_SSL_DEBUG_BUF( 4, "computed mac",
ssl->out_msg + ssl->out_msglen,
ssl->transform_out->maclen );
ssl->out_msglen += ssl->transform_out->maclen;
auth_done++;
}
#endif /* AEAD not the only option */
/*
* Encrypt
*/
#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER)
if( mode == MBEDTLS_MODE_STREAM )
{
int ret;
size_t olen = 0;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, "
"including %d bytes of padding",
ssl->out_msglen, 0 ) );
if( ( ret = mbedtls_cipher_crypt( &ssl->transform_out->cipher_ctx_enc,
ssl->transform_out->iv_enc,
ssl->transform_out->ivlen,
ssl->out_msg, ssl->out_msglen,
ssl->out_msg, &olen ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret );
return( ret );
}
if( ssl->out_msglen != olen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
}
else
#endif /* MBEDTLS_ARC4_C || MBEDTLS_CIPHER_NULL_CIPHER */
#if defined(MBEDTLS_GCM_C) || \
defined(MBEDTLS_CCM_C) || \
defined(MBEDTLS_CHACHAPOLY_C)
if( mode == MBEDTLS_MODE_GCM ||
mode == MBEDTLS_MODE_CCM ||
mode == MBEDTLS_MODE_CHACHAPOLY )
{
int ret;
size_t enc_msglen, olen;
unsigned char *enc_msg;
unsigned char add_data[13];
unsigned char iv[12];
mbedtls_ssl_transform *transform = ssl->transform_out;
unsigned char taglen = transform->ciphersuite_info->flags &
MBEDTLS_CIPHERSUITE_SHORT_TAG ? 8 : 16;
size_t explicit_ivlen = transform->ivlen - transform->fixed_ivlen;
/*
* Prepare additional authenticated data
*/
memcpy( add_data, ssl->out_ctr, 8 );
add_data[8] = ssl->out_msgtype;
mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver,
ssl->conf->transport, add_data + 9 );
add_data[11] = ( ssl->out_msglen >> 8 ) & 0xFF;
add_data[12] = ssl->out_msglen & 0xFF;
MBEDTLS_SSL_DEBUG_BUF( 4, "additional data for AEAD", add_data, 13 );
/*
* Generate IV
*/
if( transform->ivlen == 12 && transform->fixed_ivlen == 4 )
{
/* GCM and CCM: fixed || explicit (=seqnum) */
memcpy( iv, transform->iv_enc, transform->fixed_ivlen );
memcpy( iv + transform->fixed_ivlen, ssl->out_ctr, 8 );
memcpy( ssl->out_iv, ssl->out_ctr, 8 );
}
else if( transform->ivlen == 12 && transform->fixed_ivlen == 12 )
{
/* ChachaPoly: fixed XOR sequence number */
unsigned char i;
memcpy( iv, transform->iv_enc, transform->fixed_ivlen );
for( i = 0; i < 8; i++ )
iv[i+4] ^= ssl->out_ctr[i];
}
else
{
/* Reminder if we ever add an AEAD mode with a different size */
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
MBEDTLS_SSL_DEBUG_BUF( 4, "IV used (internal)",
iv, transform->ivlen );
MBEDTLS_SSL_DEBUG_BUF( 4, "IV used (transmitted)",
ssl->out_iv, explicit_ivlen );
/*
* Fix message length with added IV
*/
enc_msg = ssl->out_msg;
enc_msglen = ssl->out_msglen;
ssl->out_msglen += explicit_ivlen;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, "
"including 0 bytes of padding",
ssl->out_msglen ) );
/*
* Encrypt and authenticate
*/
if( ( ret = mbedtls_cipher_auth_encrypt( &transform->cipher_ctx_enc,
iv, transform->ivlen,
add_data, 13,
enc_msg, enc_msglen,
enc_msg, &olen,
enc_msg + enc_msglen, taglen ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_auth_encrypt", ret );
return( ret );
}
if( olen != enc_msglen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
ssl->out_msglen += taglen;
auth_done++;
MBEDTLS_SSL_DEBUG_BUF( 4, "after encrypt: tag", enc_msg + enc_msglen, taglen );
}
else
#endif /* MBEDTLS_GCM_C || MBEDTLS_CCM_C */
#if defined(MBEDTLS_CIPHER_MODE_CBC) && \
( defined(MBEDTLS_AES_C) || defined(MBEDTLS_CAMELLIA_C) || defined(MBEDTLS_ARIA_C) )
if( mode == MBEDTLS_MODE_CBC )
{
int ret;
unsigned char *enc_msg;
size_t enc_msglen, padlen, olen = 0, i;
padlen = ssl->transform_out->ivlen - ( ssl->out_msglen + 1 ) %
ssl->transform_out->ivlen;
if( padlen == ssl->transform_out->ivlen )
padlen = 0;
for( i = 0; i <= padlen; i++ )
ssl->out_msg[ssl->out_msglen + i] = (unsigned char) padlen;
ssl->out_msglen += padlen + 1;
enc_msglen = ssl->out_msglen;
enc_msg = ssl->out_msg;
#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2)
/*
* Prepend per-record IV for block cipher in TLS v1.1 and up as per
* Method 1 (6.2.3.2. in RFC4346 and RFC5246)
*/
if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 )
{
/*
* Generate IV
*/
ret = ssl->conf->f_rng( ssl->conf->p_rng, ssl->transform_out->iv_enc,
ssl->transform_out->ivlen );
if( ret != 0 )
return( ret );
memcpy( ssl->out_iv, ssl->transform_out->iv_enc,
ssl->transform_out->ivlen );
/*
* Fix pointer positions and message length with added IV
*/
enc_msg = ssl->out_msg;
enc_msglen = ssl->out_msglen;
ssl->out_msglen += ssl->transform_out->ivlen;
}
#endif /* MBEDTLS_SSL_PROTO_TLS1_1 || MBEDTLS_SSL_PROTO_TLS1_2 */
MBEDTLS_SSL_DEBUG_MSG( 3, ( "before encrypt: msglen = %d, "
"including %d bytes of IV and %d bytes of padding",
ssl->out_msglen, ssl->transform_out->ivlen,
padlen + 1 ) );
if( ( ret = mbedtls_cipher_crypt( &ssl->transform_out->cipher_ctx_enc,
ssl->transform_out->iv_enc,
ssl->transform_out->ivlen,
enc_msg, enc_msglen,
enc_msg, &olen ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret );
return( ret );
}
if( enc_msglen != olen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1)
if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_2 )
{
/*
* Save IV in SSL3 and TLS1
*/
memcpy( ssl->transform_out->iv_enc,
ssl->transform_out->cipher_ctx_enc.iv,
ssl->transform_out->ivlen );
}
#endif
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
if( auth_done == 0 )
{
unsigned char mac[MBEDTLS_SSL_MAC_ADD];
/*
* MAC(MAC_write_key, seq_num +
* TLSCipherText.type +
* TLSCipherText.version +
* length_of( (IV +) ENC(...) ) +
* IV + // except for TLS 1.0
* ENC(content + padding + padding_length));
*/
unsigned char pseudo_hdr[13];
MBEDTLS_SSL_DEBUG_MSG( 3, ( "using encrypt then mac" ) );
memcpy( pseudo_hdr + 0, ssl->out_ctr, 8 );
memcpy( pseudo_hdr + 8, ssl->out_hdr, 3 );
pseudo_hdr[11] = (unsigned char)( ( ssl->out_msglen >> 8 ) & 0xFF );
pseudo_hdr[12] = (unsigned char)( ( ssl->out_msglen ) & 0xFF );
MBEDTLS_SSL_DEBUG_BUF( 4, "MAC'd meta-data", pseudo_hdr, 13 );
mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc, pseudo_hdr, 13 );
mbedtls_md_hmac_update( &ssl->transform_out->md_ctx_enc,
ssl->out_iv, ssl->out_msglen );
mbedtls_md_hmac_finish( &ssl->transform_out->md_ctx_enc, mac );
mbedtls_md_hmac_reset( &ssl->transform_out->md_ctx_enc );
memcpy( ssl->out_iv + ssl->out_msglen, mac,
ssl->transform_out->maclen );
ssl->out_msglen += ssl->transform_out->maclen;
auth_done++;
}
#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
}
else
#endif /* MBEDTLS_CIPHER_MODE_CBC &&
( MBEDTLS_AES_C || MBEDTLS_CAMELLIA_C || MBEDTLS_ARIA_C ) */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
/* Make extra sure authentication was performed, exactly once */
if( auth_done != 1 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= encrypt buf" ) );
return( 0 );
}
static int ssl_decrypt_buf( mbedtls_ssl_context *ssl )
{
mbedtls_cipher_mode_t mode;
int auth_done = 0;
#if defined(SSL_SOME_MODES_USE_MAC)
size_t padlen = 0, correct = 1;
#endif
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> decrypt buf" ) );
if( ssl->session_in == NULL || ssl->transform_in == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
mode = mbedtls_cipher_get_cipher_mode( &ssl->transform_in->cipher_ctx_dec );
if( ssl->in_msglen < ssl->transform_in->minlen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "in_msglen (%d) < minlen (%d)",
ssl->in_msglen, ssl->transform_in->minlen ) );
return( MBEDTLS_ERR_SSL_INVALID_MAC );
}
#if defined(MBEDTLS_ARC4_C) || defined(MBEDTLS_CIPHER_NULL_CIPHER)
if( mode == MBEDTLS_MODE_STREAM )
{
int ret;
size_t olen = 0;
padlen = 0;
if( ( ret = mbedtls_cipher_crypt( &ssl->transform_in->cipher_ctx_dec,
ssl->transform_in->iv_dec,
ssl->transform_in->ivlen,
ssl->in_msg, ssl->in_msglen,
ssl->in_msg, &olen ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret );
return( ret );
}
if( ssl->in_msglen != olen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
}
else
#endif /* MBEDTLS_ARC4_C || MBEDTLS_CIPHER_NULL_CIPHER */
#if defined(MBEDTLS_GCM_C) || \
defined(MBEDTLS_CCM_C) || \
defined(MBEDTLS_CHACHAPOLY_C)
if( mode == MBEDTLS_MODE_GCM ||
mode == MBEDTLS_MODE_CCM ||
mode == MBEDTLS_MODE_CHACHAPOLY )
{
int ret;
size_t dec_msglen, olen;
unsigned char *dec_msg;
unsigned char *dec_msg_result;
unsigned char add_data[13];
unsigned char iv[12];
mbedtls_ssl_transform *transform = ssl->transform_in;
unsigned char taglen = transform->ciphersuite_info->flags &
MBEDTLS_CIPHERSUITE_SHORT_TAG ? 8 : 16;
size_t explicit_iv_len = transform->ivlen - transform->fixed_ivlen;
/*
* Compute and update sizes
*/
if( ssl->in_msglen < explicit_iv_len + taglen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < explicit_iv_len (%d) "
"+ taglen (%d)", ssl->in_msglen,
explicit_iv_len, taglen ) );
return( MBEDTLS_ERR_SSL_INVALID_MAC );
}
dec_msglen = ssl->in_msglen - explicit_iv_len - taglen;
dec_msg = ssl->in_msg;
dec_msg_result = ssl->in_msg;
ssl->in_msglen = dec_msglen;
/*
* Prepare additional authenticated data
*/
memcpy( add_data, ssl->in_ctr, 8 );
add_data[8] = ssl->in_msgtype;
mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver,
ssl->conf->transport, add_data + 9 );
add_data[11] = ( ssl->in_msglen >> 8 ) & 0xFF;
add_data[12] = ssl->in_msglen & 0xFF;
MBEDTLS_SSL_DEBUG_BUF( 4, "additional data for AEAD", add_data, 13 );
/*
* Prepare IV
*/
if( transform->ivlen == 12 && transform->fixed_ivlen == 4 )
{
/* GCM and CCM: fixed || explicit (transmitted) */
memcpy( iv, transform->iv_dec, transform->fixed_ivlen );
memcpy( iv + transform->fixed_ivlen, ssl->in_iv, 8 );
}
else if( transform->ivlen == 12 && transform->fixed_ivlen == 12 )
{
/* ChachaPoly: fixed XOR sequence number */
unsigned char i;
memcpy( iv, transform->iv_dec, transform->fixed_ivlen );
for( i = 0; i < 8; i++ )
iv[i+4] ^= ssl->in_ctr[i];
}
else
{
/* Reminder if we ever add an AEAD mode with a different size */
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
MBEDTLS_SSL_DEBUG_BUF( 4, "IV used", iv, transform->ivlen );
MBEDTLS_SSL_DEBUG_BUF( 4, "TAG used", dec_msg + dec_msglen, taglen );
/*
* Decrypt and authenticate
*/
if( ( ret = mbedtls_cipher_auth_decrypt( &ssl->transform_in->cipher_ctx_dec,
iv, transform->ivlen,
add_data, 13,
dec_msg, dec_msglen,
dec_msg_result, &olen,
dec_msg + dec_msglen, taglen ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_auth_decrypt", ret );
if( ret == MBEDTLS_ERR_CIPHER_AUTH_FAILED )
return( MBEDTLS_ERR_SSL_INVALID_MAC );
return( ret );
}
auth_done++;
if( olen != dec_msglen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
}
else
#endif /* MBEDTLS_GCM_C || MBEDTLS_CCM_C */
#if defined(MBEDTLS_CIPHER_MODE_CBC) && \
( defined(MBEDTLS_AES_C) || defined(MBEDTLS_CAMELLIA_C) || defined(MBEDTLS_ARIA_C) )
if( mode == MBEDTLS_MODE_CBC )
{
/*
* Decrypt and check the padding
*/
int ret;
unsigned char *dec_msg;
unsigned char *dec_msg_result;
size_t dec_msglen;
size_t minlen = 0;
size_t olen = 0;
/*
* Check immediate ciphertext sanity
*/
#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 )
minlen += ssl->transform_in->ivlen;
#endif
if( ssl->in_msglen < minlen + ssl->transform_in->ivlen ||
ssl->in_msglen < minlen + ssl->transform_in->maclen + 1 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < max( ivlen(%d), maclen (%d) "
"+ 1 ) ( + expl IV )", ssl->in_msglen,
ssl->transform_in->ivlen,
ssl->transform_in->maclen ) );
return( MBEDTLS_ERR_SSL_INVALID_MAC );
}
dec_msglen = ssl->in_msglen;
dec_msg = ssl->in_msg;
dec_msg_result = ssl->in_msg;
/*
* Authenticate before decrypt if enabled
*/
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
if( ssl->session_in->encrypt_then_mac == MBEDTLS_SSL_ETM_ENABLED )
{
unsigned char mac_expect[MBEDTLS_SSL_MAC_ADD];
unsigned char pseudo_hdr[13];
MBEDTLS_SSL_DEBUG_MSG( 3, ( "using encrypt then mac" ) );
dec_msglen -= ssl->transform_in->maclen;
ssl->in_msglen -= ssl->transform_in->maclen;
memcpy( pseudo_hdr + 0, ssl->in_ctr, 8 );
memcpy( pseudo_hdr + 8, ssl->in_hdr, 3 );
pseudo_hdr[11] = (unsigned char)( ( ssl->in_msglen >> 8 ) & 0xFF );
pseudo_hdr[12] = (unsigned char)( ( ssl->in_msglen ) & 0xFF );
MBEDTLS_SSL_DEBUG_BUF( 4, "MAC'd meta-data", pseudo_hdr, 13 );
mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, pseudo_hdr, 13 );
mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec,
ssl->in_iv, ssl->in_msglen );
mbedtls_md_hmac_finish( &ssl->transform_in->md_ctx_dec, mac_expect );
mbedtls_md_hmac_reset( &ssl->transform_in->md_ctx_dec );
MBEDTLS_SSL_DEBUG_BUF( 4, "message mac", ssl->in_iv + ssl->in_msglen,
ssl->transform_in->maclen );
MBEDTLS_SSL_DEBUG_BUF( 4, "expected mac", mac_expect,
ssl->transform_in->maclen );
if( mbedtls_ssl_safer_memcmp( ssl->in_iv + ssl->in_msglen, mac_expect,
ssl->transform_in->maclen ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "message mac does not match" ) );
return( MBEDTLS_ERR_SSL_INVALID_MAC );
}
auth_done++;
}
#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
/*
* Check length sanity
*/
if( ssl->in_msglen % ssl->transform_in->ivlen != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) %% ivlen (%d) != 0",
ssl->in_msglen, ssl->transform_in->ivlen ) );
return( MBEDTLS_ERR_SSL_INVALID_MAC );
}
#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2)
/*
* Initialize for prepended IV for block cipher in TLS v1.1 and up
*/
if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 )
{
unsigned char i;
dec_msglen -= ssl->transform_in->ivlen;
ssl->in_msglen -= ssl->transform_in->ivlen;
for( i = 0; i < ssl->transform_in->ivlen; i++ )
ssl->transform_in->iv_dec[i] = ssl->in_iv[i];
}
#endif /* MBEDTLS_SSL_PROTO_TLS1_1 || MBEDTLS_SSL_PROTO_TLS1_2 */
if( ( ret = mbedtls_cipher_crypt( &ssl->transform_in->cipher_ctx_dec,
ssl->transform_in->iv_dec,
ssl->transform_in->ivlen,
dec_msg, dec_msglen,
dec_msg_result, &olen ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_cipher_crypt", ret );
return( ret );
}
if( dec_msglen != olen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1)
if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_2 )
{
/*
* Save IV in SSL3 and TLS1
*/
memcpy( ssl->transform_in->iv_dec,
ssl->transform_in->cipher_ctx_dec.iv,
ssl->transform_in->ivlen );
}
#endif
padlen = 1 + ssl->in_msg[ssl->in_msglen - 1];
if( ssl->in_msglen < ssl->transform_in->maclen + padlen &&
auth_done == 0 )
{
#if defined(MBEDTLS_SSL_DEBUG_ALL)
MBEDTLS_SSL_DEBUG_MSG( 1, ( "msglen (%d) < maclen (%d) + padlen (%d)",
ssl->in_msglen, ssl->transform_in->maclen, padlen ) );
#endif
padlen = 0;
correct = 0;
}
#if defined(MBEDTLS_SSL_PROTO_SSL3)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
{
if( padlen > ssl->transform_in->ivlen )
{
#if defined(MBEDTLS_SSL_DEBUG_ALL)
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad padding length: is %d, "
"should be no more than %d",
padlen, ssl->transform_in->ivlen ) );
#endif
correct = 0;
}
}
else
#endif /* MBEDTLS_SSL_PROTO_SSL3 */
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver > MBEDTLS_SSL_MINOR_VERSION_0 )
{
/*
* TLSv1+: always check the padding up to the first failure
* and fake check up to 256 bytes of padding
*/
size_t pad_count = 0, real_count = 1;
size_t padding_idx = ssl->in_msglen - padlen;
size_t i;
/*
* Padding is guaranteed to be incorrect if:
* 1. padlen > ssl->in_msglen
*
* 2. padding_idx > MBEDTLS_SSL_IN_CONTENT_LEN +
* ssl->transform_in->maclen
*
* In both cases we reset padding_idx to a safe value (0) to
* prevent out-of-buffer reads.
*/
correct &= ( padlen <= ssl->in_msglen );
correct &= ( padding_idx <= MBEDTLS_SSL_IN_CONTENT_LEN +
ssl->transform_in->maclen );
padding_idx *= correct;
for( i = 0; i < 256; i++ )
{
real_count &= ( i < padlen );
pad_count += real_count *
( ssl->in_msg[padding_idx + i] == padlen - 1 );
}
correct &= ( pad_count == padlen ); /* Only 1 on correct padding */
#if defined(MBEDTLS_SSL_DEBUG_ALL)
if( padlen > 0 && correct == 0 )
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad padding byte detected" ) );
#endif
padlen &= correct * 0x1FF;
}
else
#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
MBEDTLS_SSL_PROTO_TLS1_2 */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
ssl->in_msglen -= padlen;
}
else
#endif /* MBEDTLS_CIPHER_MODE_CBC &&
( MBEDTLS_AES_C || MBEDTLS_CAMELLIA_C || MBEDTLS_ARIA_C ) */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#if defined(MBEDTLS_SSL_DEBUG_ALL)
MBEDTLS_SSL_DEBUG_BUF( 4, "raw buffer after decryption",
ssl->in_msg, ssl->in_msglen );
#endif
/*
* Authenticate if not done yet.
* Compute the MAC regardless of the padding result (RFC4346, CBCTIME).
*/
#if defined(SSL_SOME_MODES_USE_MAC)
if( auth_done == 0 )
{
unsigned char mac_expect[MBEDTLS_SSL_MAC_ADD];
ssl->in_msglen -= ssl->transform_in->maclen;
ssl->in_len[0] = (unsigned char)( ssl->in_msglen >> 8 );
ssl->in_len[1] = (unsigned char)( ssl->in_msglen );
#if defined(MBEDTLS_SSL_PROTO_SSL3)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
{
ssl_mac( &ssl->transform_in->md_ctx_dec,
ssl->transform_in->mac_dec,
ssl->in_msg, ssl->in_msglen,
ssl->in_ctr, ssl->in_msgtype,
mac_expect );
}
else
#endif /* MBEDTLS_SSL_PROTO_SSL3 */
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver > MBEDTLS_SSL_MINOR_VERSION_0 )
{
/*
* Process MAC and always update for padlen afterwards to make
* total time independent of padlen.
*
* Known timing attacks:
* - Lucky Thirteen (http://www.isg.rhul.ac.uk/tls/TLStiming.pdf)
*
* To compensate for different timings for the MAC calculation
* depending on how much padding was removed (which is determined
* by padlen), process extra_run more blocks through the hash
* function.
*
* The formula in the paper is
* extra_run = ceil( (L1-55) / 64 ) - ceil( (L2-55) / 64 )
* where L1 is the size of the header plus the decrypted message
* plus CBC padding and L2 is the size of the header plus the
* decrypted message. This is for an underlying hash function
* with 64-byte blocks.
* We use ( (Lx+8) / 64 ) to handle 'negative Lx' values
* correctly. We round down instead of up, so -56 is the correct
* value for our calculations instead of -55.
*
* Repeat the formula rather than defining a block_size variable.
* This avoids requiring division by a variable at runtime
* (which would be marginally less efficient and would require
* linking an extra division function in some builds).
*/
size_t j, extra_run = 0;
/*
* The next two sizes are the minimum and maximum values of
* in_msglen over all padlen values.
*
* They're independent of padlen, since we previously did
* in_msglen -= padlen.
*
* Note that max_len + maclen is never more than the buffer
* length, as we previously did in_msglen -= maclen too.
*/
const size_t max_len = ssl->in_msglen + padlen;
const size_t min_len = ( max_len > 256 ) ? max_len - 256 : 0;
switch( ssl->transform_in->ciphersuite_info->mac )
{
#if defined(MBEDTLS_MD5_C) || defined(MBEDTLS_SHA1_C) || \
defined(MBEDTLS_SHA256_C)
case MBEDTLS_MD_MD5:
case MBEDTLS_MD_SHA1:
case MBEDTLS_MD_SHA256:
/* 8 bytes of message size, 64-byte compression blocks */
extra_run = ( 13 + ssl->in_msglen + padlen + 8 ) / 64 -
( 13 + ssl->in_msglen + 8 ) / 64;
break;
#endif
#if defined(MBEDTLS_SHA512_C)
case MBEDTLS_MD_SHA384:
/* 16 bytes of message size, 128-byte compression blocks */
extra_run = ( 13 + ssl->in_msglen + padlen + 16 ) / 128 -
( 13 + ssl->in_msglen + 16 ) / 128;
break;
#endif
default:
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
extra_run &= correct * 0xFF;
mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_ctr, 8 );
mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_hdr, 3 );
mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_len, 2 );
mbedtls_md_hmac_update( &ssl->transform_in->md_ctx_dec, ssl->in_msg,
ssl->in_msglen );
/* Make sure we access everything even when padlen > 0. This
* makes the synchronisation requirements for just-in-time
* Prime+Probe attacks much tighter and hopefully impractical. */
ssl_read_memory( ssl->in_msg + ssl->in_msglen, padlen );
mbedtls_md_hmac_finish( &ssl->transform_in->md_ctx_dec, mac_expect );
/* Call mbedtls_md_process at least once due to cache attacks
* that observe whether md_process() was called of not */
for( j = 0; j < extra_run + 1; j++ )
mbedtls_md_process( &ssl->transform_in->md_ctx_dec, ssl->in_msg );
mbedtls_md_hmac_reset( &ssl->transform_in->md_ctx_dec );
/* Make sure we access all the memory that could contain the MAC,
* before we check it in the next code block. This makes the
* synchronisation requirements for just-in-time Prime+Probe
* attacks much tighter and hopefully impractical. */
ssl_read_memory( ssl->in_msg + min_len,
max_len - min_len + ssl->transform_in->maclen );
}
else
#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
MBEDTLS_SSL_PROTO_TLS1_2 */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#if defined(MBEDTLS_SSL_DEBUG_ALL)
MBEDTLS_SSL_DEBUG_BUF( 4, "expected mac", mac_expect, ssl->transform_in->maclen );
MBEDTLS_SSL_DEBUG_BUF( 4, "message mac", ssl->in_msg + ssl->in_msglen,
ssl->transform_in->maclen );
#endif
if( mbedtls_ssl_safer_memcmp( ssl->in_msg + ssl->in_msglen, mac_expect,
ssl->transform_in->maclen ) != 0 )
{
#if defined(MBEDTLS_SSL_DEBUG_ALL)
MBEDTLS_SSL_DEBUG_MSG( 1, ( "message mac does not match" ) );
#endif
correct = 0;
}
auth_done++;
}
/*
* Finally check the correct flag
*/
if( correct == 0 )
return( MBEDTLS_ERR_SSL_INVALID_MAC );
#endif /* SSL_SOME_MODES_USE_MAC */
/* Make extra sure authentication was performed, exactly once */
if( auth_done != 1 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
if( ssl->in_msglen == 0 )
{
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_3
&& ssl->in_msgtype != MBEDTLS_SSL_MSG_APPLICATION_DATA )
{
/* TLS v1.2 explicitly disallows zero-length messages which are not application data */
MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid zero-length message type: %d", ssl->in_msgtype ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
ssl->nb_zero++;
/*
* Three or more empty messages may be a DoS attack
* (excessive CPU consumption).
*/
if( ssl->nb_zero > 3 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "received four consecutive empty "
"messages, possible DoS attack" ) );
return( MBEDTLS_ERR_SSL_INVALID_MAC );
}
}
else
ssl->nb_zero = 0;
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
; /* in_ctr read from peer, not maintained internally */
}
else
#endif
{
unsigned char i;
for( i = 8; i > ssl_ep_len( ssl ); i-- )
if( ++ssl->in_ctr[i - 1] != 0 )
break;
/* The loop goes to its end iff the counter is wrapping */
if( i == ssl_ep_len( ssl ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "incoming message counter would wrap" ) );
return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING );
}
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= decrypt buf" ) );
return( 0 );
}
#undef MAC_NONE
#undef MAC_PLAINTEXT
#undef MAC_CIPHERTEXT
#if defined(MBEDTLS_ZLIB_SUPPORT)
/*
* Compression/decompression functions
*/
static int ssl_compress_buf( mbedtls_ssl_context *ssl )
{
int ret;
unsigned char *msg_post = ssl->out_msg;
ptrdiff_t bytes_written = ssl->out_msg - ssl->out_buf;
size_t len_pre = ssl->out_msglen;
unsigned char *msg_pre = ssl->compress_buf;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> compress buf" ) );
if( len_pre == 0 )
return( 0 );
memcpy( msg_pre, ssl->out_msg, len_pre );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "before compression: msglen = %d, ",
ssl->out_msglen ) );
MBEDTLS_SSL_DEBUG_BUF( 4, "before compression: output payload",
ssl->out_msg, ssl->out_msglen );
ssl->transform_out->ctx_deflate.next_in = msg_pre;
ssl->transform_out->ctx_deflate.avail_in = len_pre;
ssl->transform_out->ctx_deflate.next_out = msg_post;
ssl->transform_out->ctx_deflate.avail_out = MBEDTLS_SSL_OUT_BUFFER_LEN - bytes_written;
ret = deflate( &ssl->transform_out->ctx_deflate, Z_SYNC_FLUSH );
if( ret != Z_OK )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "failed to perform compression (%d)", ret ) );
return( MBEDTLS_ERR_SSL_COMPRESSION_FAILED );
}
ssl->out_msglen = MBEDTLS_SSL_OUT_BUFFER_LEN -
ssl->transform_out->ctx_deflate.avail_out - bytes_written;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "after compression: msglen = %d, ",
ssl->out_msglen ) );
MBEDTLS_SSL_DEBUG_BUF( 4, "after compression: output payload",
ssl->out_msg, ssl->out_msglen );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= compress buf" ) );
return( 0 );
}
static int ssl_decompress_buf( mbedtls_ssl_context *ssl )
{
int ret;
unsigned char *msg_post = ssl->in_msg;
ptrdiff_t header_bytes = ssl->in_msg - ssl->in_buf;
size_t len_pre = ssl->in_msglen;
unsigned char *msg_pre = ssl->compress_buf;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> decompress buf" ) );
if( len_pre == 0 )
return( 0 );
memcpy( msg_pre, ssl->in_msg, len_pre );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "before decompression: msglen = %d, ",
ssl->in_msglen ) );
MBEDTLS_SSL_DEBUG_BUF( 4, "before decompression: input payload",
ssl->in_msg, ssl->in_msglen );
ssl->transform_in->ctx_inflate.next_in = msg_pre;
ssl->transform_in->ctx_inflate.avail_in = len_pre;
ssl->transform_in->ctx_inflate.next_out = msg_post;
ssl->transform_in->ctx_inflate.avail_out = MBEDTLS_SSL_IN_BUFFER_LEN -
header_bytes;
ret = inflate( &ssl->transform_in->ctx_inflate, Z_SYNC_FLUSH );
if( ret != Z_OK )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "failed to perform decompression (%d)", ret ) );
return( MBEDTLS_ERR_SSL_COMPRESSION_FAILED );
}
ssl->in_msglen = MBEDTLS_SSL_IN_BUFFER_LEN -
ssl->transform_in->ctx_inflate.avail_out - header_bytes;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "after decompression: msglen = %d, ",
ssl->in_msglen ) );
MBEDTLS_SSL_DEBUG_BUF( 4, "after decompression: input payload",
ssl->in_msg, ssl->in_msglen );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= decompress buf" ) );
return( 0 );
}
#endif /* MBEDTLS_ZLIB_SUPPORT */
#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION)
static int ssl_write_hello_request( mbedtls_ssl_context *ssl );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
static int ssl_resend_hello_request( mbedtls_ssl_context *ssl )
{
/* If renegotiation is not enforced, retransmit until we would reach max
* timeout if we were using the usual handshake doubling scheme */
if( ssl->conf->renego_max_records < 0 )
{
uint32_t ratio = ssl->conf->hs_timeout_max / ssl->conf->hs_timeout_min + 1;
unsigned char doublings = 1;
while( ratio != 0 )
{
++doublings;
ratio >>= 1;
}
if( ++ssl->renego_records_seen > doublings )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "no longer retransmitting hello request" ) );
return( 0 );
}
}
return( ssl_write_hello_request( ssl ) );
}
#endif
#endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */
/*
* Fill the input message buffer by appending data to it.
* The amount of data already fetched is in ssl->in_left.
*
* If we return 0, is it guaranteed that (at least) nb_want bytes are
* available (from this read and/or a previous one). Otherwise, an error code
* is returned (possibly EOF or WANT_READ).
*
* With stream transport (TLS) on success ssl->in_left == nb_want, but
* with datagram transport (DTLS) on success ssl->in_left >= nb_want,
* since we always read a whole datagram at once.
*
* For DTLS, it is up to the caller to set ssl->next_record_offset when
* they're done reading a record.
*/
int mbedtls_ssl_fetch_input( mbedtls_ssl_context *ssl, size_t nb_want )
{
int ret;
size_t len;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> fetch input" ) );
if( ssl->f_recv == NULL && ssl->f_recv_timeout == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Bad usage of mbedtls_ssl_set_bio() "
"or mbedtls_ssl_set_bio()" ) );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
if( nb_want > MBEDTLS_SSL_IN_BUFFER_LEN - (size_t)( ssl->in_hdr - ssl->in_buf ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "requesting more data than fits" ) );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
uint32_t timeout;
/* Just to be sure */
if( ssl->f_set_timer == NULL || ssl->f_get_timer == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "You must use "
"mbedtls_ssl_set_timer_cb() for DTLS" ) );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
/*
* The point is, we need to always read a full datagram at once, so we
* sometimes read more then requested, and handle the additional data.
* It could be the rest of the current record (while fetching the
* header) and/or some other records in the same datagram.
*/
/*
* Move to the next record in the already read datagram if applicable
*/
if( ssl->next_record_offset != 0 )
{
if( ssl->in_left < ssl->next_record_offset )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
ssl->in_left -= ssl->next_record_offset;
if( ssl->in_left != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "next record in same datagram, offset: %d",
ssl->next_record_offset ) );
memmove( ssl->in_hdr,
ssl->in_hdr + ssl->next_record_offset,
ssl->in_left );
}
ssl->next_record_offset = 0;
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d",
ssl->in_left, nb_want ) );
/*
* Done if we already have enough data.
*/
if( nb_want <= ssl->in_left)
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= fetch input" ) );
return( 0 );
}
/*
* A record can't be split accross datagrams. If we need to read but
* are not at the beginning of a new record, the caller did something
* wrong.
*/
if( ssl->in_left != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
/*
* Don't even try to read if time's out already.
* This avoids by-passing the timer when repeatedly receiving messages
* that will end up being dropped.
*/
if( ssl_check_timer( ssl ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "timer has expired" ) );
ret = MBEDTLS_ERR_SSL_TIMEOUT;
}
else
{
len = MBEDTLS_SSL_IN_BUFFER_LEN - ( ssl->in_hdr - ssl->in_buf );
if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
timeout = ssl->handshake->retransmit_timeout;
else
timeout = ssl->conf->read_timeout;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "f_recv_timeout: %u ms", timeout ) );
if( ssl->f_recv_timeout != NULL )
ret = ssl->f_recv_timeout( ssl->p_bio, ssl->in_hdr, len,
timeout );
else
ret = ssl->f_recv( ssl->p_bio, ssl->in_hdr, len );
MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_recv(_timeout)", ret );
if( ret == 0 )
return( MBEDTLS_ERR_SSL_CONN_EOF );
}
if( ret == MBEDTLS_ERR_SSL_TIMEOUT )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "timeout" ) );
ssl_set_timer( ssl, 0 );
if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
{
if( ssl_double_retransmit_timeout( ssl ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake timeout" ) );
return( MBEDTLS_ERR_SSL_TIMEOUT );
}
if( ( ret = mbedtls_ssl_resend( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_resend", ret );
return( ret );
}
return( MBEDTLS_ERR_SSL_WANT_READ );
}
#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION)
else if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING )
{
if( ( ret = ssl_resend_hello_request( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_resend_hello_request", ret );
return( ret );
}
return( MBEDTLS_ERR_SSL_WANT_READ );
}
#endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */
}
if( ret < 0 )
return( ret );
ssl->in_left = ret;
}
else
#endif
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d",
ssl->in_left, nb_want ) );
while( ssl->in_left < nb_want )
{
len = nb_want - ssl->in_left;
if( ssl_check_timer( ssl ) != 0 )
ret = MBEDTLS_ERR_SSL_TIMEOUT;
else
{
if( ssl->f_recv_timeout != NULL )
{
ret = ssl->f_recv_timeout( ssl->p_bio,
ssl->in_hdr + ssl->in_left, len,
ssl->conf->read_timeout );
}
else
{
ret = ssl->f_recv( ssl->p_bio,
ssl->in_hdr + ssl->in_left, len );
}
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "in_left: %d, nb_want: %d",
ssl->in_left, nb_want ) );
MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_recv(_timeout)", ret );
if( ret == 0 )
return( MBEDTLS_ERR_SSL_CONN_EOF );
if( ret < 0 )
return( ret );
if ( (size_t)ret > len || ( INT_MAX > SIZE_MAX && ret > SIZE_MAX ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1,
( "f_recv returned %d bytes but only %lu were requested",
ret, (unsigned long)len ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
ssl->in_left += ret;
}
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= fetch input" ) );
return( 0 );
}
/*
* Flush any data not yet written
*/
int mbedtls_ssl_flush_output( mbedtls_ssl_context *ssl )
{
int ret;
unsigned char *buf;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> flush output" ) );
if( ssl->f_send == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Bad usage of mbedtls_ssl_set_bio() "
"or mbedtls_ssl_set_bio()" ) );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
/* Avoid incrementing counter if data is flushed */
if( ssl->out_left == 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= flush output" ) );
return( 0 );
}
while( ssl->out_left > 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "message length: %d, out_left: %d",
mbedtls_ssl_hdr_len( ssl ) + ssl->out_msglen, ssl->out_left ) );
buf = ssl->out_hdr - ssl->out_left;
ret = ssl->f_send( ssl->p_bio, buf, ssl->out_left );
MBEDTLS_SSL_DEBUG_RET( 2, "ssl->f_send", ret );
if( ret <= 0 )
return( ret );
if( (size_t)ret > ssl->out_left || ( INT_MAX > SIZE_MAX && ret > SIZE_MAX ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1,
( "f_send returned %d bytes but only %lu bytes were sent",
ret, (unsigned long)ssl->out_left ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
ssl->out_left -= ret;
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
ssl->out_hdr = ssl->out_buf;
}
else
#endif
{
ssl->out_hdr = ssl->out_buf + 8;
}
ssl_update_out_pointers( ssl, ssl->transform_out );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= flush output" ) );
return( 0 );
}
/*
* Functions to handle the DTLS retransmission state machine
*/
#if defined(MBEDTLS_SSL_PROTO_DTLS)
/*
* Append current handshake message to current outgoing flight
*/
static int ssl_flight_append( mbedtls_ssl_context *ssl )
{
mbedtls_ssl_flight_item *msg;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_flight_append" ) );
MBEDTLS_SSL_DEBUG_BUF( 4, "message appended to flight",
ssl->out_msg, ssl->out_msglen );
/* Allocate space for current message */
if( ( msg = mbedtls_calloc( 1, sizeof( mbedtls_ssl_flight_item ) ) ) == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc %d bytes failed",
sizeof( mbedtls_ssl_flight_item ) ) );
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
}
if( ( msg->p = mbedtls_calloc( 1, ssl->out_msglen ) ) == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc %d bytes failed", ssl->out_msglen ) );
mbedtls_free( msg );
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
}
/* Copy current handshake message with headers */
memcpy( msg->p, ssl->out_msg, ssl->out_msglen );
msg->len = ssl->out_msglen;
msg->type = ssl->out_msgtype;
msg->next = NULL;
/* Append to the current flight */
if( ssl->handshake->flight == NULL )
ssl->handshake->flight = msg;
else
{
mbedtls_ssl_flight_item *cur = ssl->handshake->flight;
while( cur->next != NULL )
cur = cur->next;
cur->next = msg;
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_flight_append" ) );
return( 0 );
}
/*
* Free the current flight of handshake messages
*/
static void ssl_flight_free( mbedtls_ssl_flight_item *flight )
{
mbedtls_ssl_flight_item *cur = flight;
mbedtls_ssl_flight_item *next;
while( cur != NULL )
{
next = cur->next;
mbedtls_free( cur->p );
mbedtls_free( cur );
cur = next;
}
}
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
static void ssl_dtls_replay_reset( mbedtls_ssl_context *ssl );
#endif
/*
* Swap transform_out and out_ctr with the alternative ones
*/
static void ssl_swap_epochs( mbedtls_ssl_context *ssl )
{
mbedtls_ssl_transform *tmp_transform;
unsigned char tmp_out_ctr[8];
if( ssl->transform_out == ssl->handshake->alt_transform_out )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip swap epochs" ) );
return;
}
MBEDTLS_SSL_DEBUG_MSG( 3, ( "swap epochs" ) );
/* Swap transforms */
tmp_transform = ssl->transform_out;
ssl->transform_out = ssl->handshake->alt_transform_out;
ssl->handshake->alt_transform_out = tmp_transform;
/* Swap epoch + sequence_number */
memcpy( tmp_out_ctr, ssl->cur_out_ctr, 8 );
memcpy( ssl->cur_out_ctr, ssl->handshake->alt_out_ctr, 8 );
memcpy( ssl->handshake->alt_out_ctr, tmp_out_ctr, 8 );
/* Adjust to the newly activated transform */
ssl_update_out_pointers( ssl, ssl->transform_out );
#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
if( mbedtls_ssl_hw_record_activate != NULL )
{
if( ( ret = mbedtls_ssl_hw_record_activate( ssl, MBEDTLS_SSL_CHANNEL_OUTBOUND ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_activate", ret );
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
}
}
#endif
}
/*
* Retransmit the current flight of messages.
*/
int mbedtls_ssl_resend( mbedtls_ssl_context *ssl )
{
int ret = 0;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> mbedtls_ssl_resend" ) );
ret = mbedtls_ssl_flight_transmit( ssl );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= mbedtls_ssl_resend" ) );
return( ret );
}
/*
* Transmit or retransmit the current flight of messages.
*
* Need to remember the current message in case flush_output returns
* WANT_WRITE, causing us to exit this function and come back later.
* This function must be called until state is no longer SENDING.
*/
int mbedtls_ssl_flight_transmit( mbedtls_ssl_context *ssl )
{
int ret;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> mbedtls_ssl_flight_transmit" ) );
if( ssl->handshake->retransmit_state != MBEDTLS_SSL_RETRANS_SENDING )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "initialise flight transmission" ) );
ssl->handshake->cur_msg = ssl->handshake->flight;
ssl->handshake->cur_msg_p = ssl->handshake->flight->p + 12;
ssl_swap_epochs( ssl );
ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_SENDING;
}
while( ssl->handshake->cur_msg != NULL )
{
size_t max_frag_len;
const mbedtls_ssl_flight_item * const cur = ssl->handshake->cur_msg;
int const is_finished =
( cur->type == MBEDTLS_SSL_MSG_HANDSHAKE &&
cur->p[0] == MBEDTLS_SSL_HS_FINISHED );
uint8_t const force_flush = ssl->disable_datagram_packing == 1 ?
SSL_FORCE_FLUSH : SSL_DONT_FORCE_FLUSH;
/* Swap epochs before sending Finished: we can't do it after
* sending ChangeCipherSpec, in case write returns WANT_READ.
* Must be done before copying, may change out_msg pointer */
if( is_finished && ssl->handshake->cur_msg_p == ( cur->p + 12 ) )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "swap epochs to send finished message" ) );
ssl_swap_epochs( ssl );
}
ret = ssl_get_remaining_payload_in_datagram( ssl );
if( ret < 0 )
return( ret );
max_frag_len = (size_t) ret;
/* CCS is copied as is, while HS messages may need fragmentation */
if( cur->type == MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC )
{
if( max_frag_len == 0 )
{
if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
return( ret );
continue;
}
memcpy( ssl->out_msg, cur->p, cur->len );
ssl->out_msglen = cur->len;
ssl->out_msgtype = cur->type;
/* Update position inside current message */
ssl->handshake->cur_msg_p += cur->len;
}
else
{
const unsigned char * const p = ssl->handshake->cur_msg_p;
const size_t hs_len = cur->len - 12;
const size_t frag_off = p - ( cur->p + 12 );
const size_t rem_len = hs_len - frag_off;
size_t cur_hs_frag_len, max_hs_frag_len;
if( ( max_frag_len < 12 ) || ( max_frag_len == 12 && hs_len != 0 ) )
{
if( is_finished )
ssl_swap_epochs( ssl );
if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
return( ret );
continue;
}
max_hs_frag_len = max_frag_len - 12;
cur_hs_frag_len = rem_len > max_hs_frag_len ?
max_hs_frag_len : rem_len;
if( frag_off == 0 && cur_hs_frag_len != hs_len )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "fragmenting handshake message (%u > %u)",
(unsigned) cur_hs_frag_len,
(unsigned) max_hs_frag_len ) );
}
/* Messages are stored with handshake headers as if not fragmented,
* copy beginning of headers then fill fragmentation fields.
* Handshake headers: type(1) len(3) seq(2) f_off(3) f_len(3) */
memcpy( ssl->out_msg, cur->p, 6 );
ssl->out_msg[6] = ( ( frag_off >> 16 ) & 0xff );
ssl->out_msg[7] = ( ( frag_off >> 8 ) & 0xff );
ssl->out_msg[8] = ( ( frag_off ) & 0xff );
ssl->out_msg[ 9] = ( ( cur_hs_frag_len >> 16 ) & 0xff );
ssl->out_msg[10] = ( ( cur_hs_frag_len >> 8 ) & 0xff );
ssl->out_msg[11] = ( ( cur_hs_frag_len ) & 0xff );
MBEDTLS_SSL_DEBUG_BUF( 3, "handshake header", ssl->out_msg, 12 );
/* Copy the handshake message content and set records fields */
memcpy( ssl->out_msg + 12, p, cur_hs_frag_len );
ssl->out_msglen = cur_hs_frag_len + 12;
ssl->out_msgtype = cur->type;
/* Update position inside current message */
ssl->handshake->cur_msg_p += cur_hs_frag_len;
}
/* If done with the current message move to the next one if any */
if( ssl->handshake->cur_msg_p >= cur->p + cur->len )
{
if( cur->next != NULL )
{
ssl->handshake->cur_msg = cur->next;
ssl->handshake->cur_msg_p = cur->next->p + 12;
}
else
{
ssl->handshake->cur_msg = NULL;
ssl->handshake->cur_msg_p = NULL;
}
}
/* Actually send the message out */
if( ( ret = mbedtls_ssl_write_record( ssl, force_flush ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret );
return( ret );
}
}
if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
return( ret );
/* Update state and set timer */
if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER )
ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED;
else
{
ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING;
ssl_set_timer( ssl, ssl->handshake->retransmit_timeout );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= mbedtls_ssl_flight_transmit" ) );
return( 0 );
}
/*
* To be called when the last message of an incoming flight is received.
*/
void mbedtls_ssl_recv_flight_completed( mbedtls_ssl_context *ssl )
{
/* We won't need to resend that one any more */
ssl_flight_free( ssl->handshake->flight );
ssl->handshake->flight = NULL;
ssl->handshake->cur_msg = NULL;
/* The next incoming flight will start with this msg_seq */
ssl->handshake->in_flight_start_seq = ssl->handshake->in_msg_seq;
/* We don't want to remember CCS's across flight boundaries. */
ssl->handshake->buffering.seen_ccs = 0;
/* Clear future message buffering structure. */
ssl_buffering_free( ssl );
/* Cancel timer */
ssl_set_timer( ssl, 0 );
if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
ssl->in_msg[0] == MBEDTLS_SSL_HS_FINISHED )
{
ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED;
}
else
ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_PREPARING;
}
/*
* To be called when the last message of an outgoing flight is send.
*/
void mbedtls_ssl_send_flight_completed( mbedtls_ssl_context *ssl )
{
ssl_reset_retransmit_timeout( ssl );
ssl_set_timer( ssl, ssl->handshake->retransmit_timeout );
if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
ssl->in_msg[0] == MBEDTLS_SSL_HS_FINISHED )
{
ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_FINISHED;
}
else
ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING;
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
/*
* Handshake layer functions
*/
/*
* Write (DTLS: or queue) current handshake (including CCS) message.
*
* - fill in handshake headers
* - update handshake checksum
* - DTLS: save message for resending
* - then pass to the record layer
*
* DTLS: except for HelloRequest, messages are only queued, and will only be
* actually sent when calling flight_transmit() or resend().
*
* Inputs:
* - ssl->out_msglen: 4 + actual handshake message len
* (4 is the size of handshake headers for TLS)
* - ssl->out_msg[0]: the handshake type (ClientHello, ServerHello, etc)
* - ssl->out_msg + 4: the handshake message body
*
* Outputs, ie state before passing to flight_append() or write_record():
* - ssl->out_msglen: the length of the record contents
* (including handshake headers but excluding record headers)
* - ssl->out_msg: the record contents (handshake headers + content)
*/
int mbedtls_ssl_write_handshake_msg( mbedtls_ssl_context *ssl )
{
int ret;
const size_t hs_len = ssl->out_msglen - 4;
const unsigned char hs_type = ssl->out_msg[0];
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write handshake message" ) );
/*
* Sanity checks
*/
if( ssl->out_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE &&
ssl->out_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC )
{
/* In SSLv3, the client might send a NoCertificate alert. */
#if defined(MBEDTLS_SSL_PROTO_SSL3) && defined(MBEDTLS_SSL_CLI_C)
if( ! ( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 &&
ssl->out_msgtype == MBEDTLS_SSL_MSG_ALERT &&
ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT ) )
#endif /* MBEDTLS_SSL_PROTO_SSL3 && MBEDTLS_SSL_SRV_C */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
}
/* Whenever we send anything different from a
* HelloRequest we should be in a handshake - double check. */
if( ! ( ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
hs_type == MBEDTLS_SSL_HS_HELLO_REQUEST ) &&
ssl->handshake == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
ssl->handshake != NULL &&
ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#endif
/* Double-check that we did not exceed the bounds
* of the outgoing record buffer.
* This should never fail as the various message
* writing functions must obey the bounds of the
* outgoing record buffer, but better be safe.
*
* Note: We deliberately do not check for the MTU or MFL here.
*/
if( ssl->out_msglen > MBEDTLS_SSL_OUT_CONTENT_LEN )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Record too large: "
"size %u, maximum %u",
(unsigned) ssl->out_msglen,
(unsigned) MBEDTLS_SSL_OUT_CONTENT_LEN ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
/*
* Fill handshake headers
*/
if( ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE )
{
ssl->out_msg[1] = (unsigned char)( hs_len >> 16 );
ssl->out_msg[2] = (unsigned char)( hs_len >> 8 );
ssl->out_msg[3] = (unsigned char)( hs_len );
/*
* DTLS has additional fields in the Handshake layer,
* between the length field and the actual payload:
* uint16 message_seq;
* uint24 fragment_offset;
* uint24 fragment_length;
*/
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
/* Make room for the additional DTLS fields */
if( MBEDTLS_SSL_OUT_CONTENT_LEN - ssl->out_msglen < 8 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS handshake message too large: "
"size %u, maximum %u",
(unsigned) ( hs_len ),
(unsigned) ( MBEDTLS_SSL_OUT_CONTENT_LEN - 12 ) ) );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
memmove( ssl->out_msg + 12, ssl->out_msg + 4, hs_len );
ssl->out_msglen += 8;
/* Write message_seq and update it, except for HelloRequest */
if( hs_type != MBEDTLS_SSL_HS_HELLO_REQUEST )
{
ssl->out_msg[4] = ( ssl->handshake->out_msg_seq >> 8 ) & 0xFF;
ssl->out_msg[5] = ( ssl->handshake->out_msg_seq ) & 0xFF;
++( ssl->handshake->out_msg_seq );
}
else
{
ssl->out_msg[4] = 0;
ssl->out_msg[5] = 0;
}
/* Handshake hashes are computed without fragmentation,
* so set frag_offset = 0 and frag_len = hs_len for now */
memset( ssl->out_msg + 6, 0x00, 3 );
memcpy( ssl->out_msg + 9, ssl->out_msg + 1, 3 );
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
/* Update running hashes of handshake messages seen */
if( hs_type != MBEDTLS_SSL_HS_HELLO_REQUEST )
ssl->handshake->update_checksum( ssl, ssl->out_msg, ssl->out_msglen );
}
/* Either send now, or just save to be sent (and resent) later */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
! ( ssl->out_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
hs_type == MBEDTLS_SSL_HS_HELLO_REQUEST ) )
{
if( ( ret = ssl_flight_append( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_flight_append", ret );
return( ret );
}
}
else
#endif
{
if( ( ret = mbedtls_ssl_write_record( ssl, SSL_FORCE_FLUSH ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_write_record", ret );
return( ret );
}
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write handshake message" ) );
return( 0 );
}
/*
* Record layer functions
*/
/*
* Write current record.
*
* Uses:
* - ssl->out_msgtype: type of the message (AppData, Handshake, Alert, CCS)
* - ssl->out_msglen: length of the record content (excl headers)
* - ssl->out_msg: record content
*/
int mbedtls_ssl_write_record( mbedtls_ssl_context *ssl, uint8_t force_flush )
{
int ret, done = 0;
size_t len = ssl->out_msglen;
uint8_t flush = force_flush;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write record" ) );
#if defined(MBEDTLS_ZLIB_SUPPORT)
if( ssl->transform_out != NULL &&
ssl->session_out->compression == MBEDTLS_SSL_COMPRESS_DEFLATE )
{
if( ( ret = ssl_compress_buf( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_compress_buf", ret );
return( ret );
}
len = ssl->out_msglen;
}
#endif /*MBEDTLS_ZLIB_SUPPORT */
#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
if( mbedtls_ssl_hw_record_write != NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_write()" ) );
ret = mbedtls_ssl_hw_record_write( ssl );
if( ret != 0 && ret != MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_write", ret );
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
}
if( ret == 0 )
done = 1;
}
#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
if( !done )
{
unsigned i;
size_t protected_record_size;
ssl->out_hdr[0] = (unsigned char) ssl->out_msgtype;
mbedtls_ssl_write_version( ssl->major_ver, ssl->minor_ver,
ssl->conf->transport, ssl->out_hdr + 1 );
memcpy( ssl->out_ctr, ssl->cur_out_ctr, 8 );
ssl->out_len[0] = (unsigned char)( len >> 8 );
ssl->out_len[1] = (unsigned char)( len );
if( ssl->transform_out != NULL )
{
if( ( ret = ssl_encrypt_buf( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_encrypt_buf", ret );
return( ret );
}
len = ssl->out_msglen;
ssl->out_len[0] = (unsigned char)( len >> 8 );
ssl->out_len[1] = (unsigned char)( len );
}
protected_record_size = len + mbedtls_ssl_hdr_len( ssl );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
/* In case of DTLS, double-check that we don't exceed
* the remaining space in the datagram. */
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
ret = ssl_get_remaining_space_in_datagram( ssl );
if( ret < 0 )
return( ret );
if( protected_record_size > (size_t) ret )
{
/* Should never happen */
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
MBEDTLS_SSL_DEBUG_MSG( 3, ( "output record: msgtype = %d, "
"version = [%d:%d], msglen = %d",
ssl->out_hdr[0], ssl->out_hdr[1],
ssl->out_hdr[2], len ) );
MBEDTLS_SSL_DEBUG_BUF( 4, "output record sent to network",
ssl->out_hdr, protected_record_size );
ssl->out_left += protected_record_size;
ssl->out_hdr += protected_record_size;
ssl_update_out_pointers( ssl, ssl->transform_out );
for( i = 8; i > ssl_ep_len( ssl ); i-- )
if( ++ssl->cur_out_ctr[i - 1] != 0 )
break;
/* The loop goes to its end iff the counter is wrapping */
if( i == ssl_ep_len( ssl ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "outgoing message counter would wrap" ) );
return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING );
}
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
flush == SSL_DONT_FORCE_FLUSH )
{
size_t remaining;
ret = ssl_get_remaining_payload_in_datagram( ssl );
if( ret < 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_get_remaining_payload_in_datagram",
ret );
return( ret );
}
remaining = (size_t) ret;
if( remaining == 0 )
{
flush = SSL_FORCE_FLUSH;
}
else
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Still %u bytes available in current datagram", (unsigned) remaining ) );
}
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
if( ( flush == SSL_FORCE_FLUSH ) &&
( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flush_output", ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write record" ) );
return( 0 );
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
static int ssl_hs_is_proper_fragment( mbedtls_ssl_context *ssl )
{
if( ssl->in_msglen < ssl->in_hslen ||
memcmp( ssl->in_msg + 6, "\0\0\0", 3 ) != 0 ||
memcmp( ssl->in_msg + 9, ssl->in_msg + 1, 3 ) != 0 )
{
return( 1 );
}
return( 0 );
}
static uint32_t ssl_get_hs_frag_len( mbedtls_ssl_context const *ssl )
{
return( ( ssl->in_msg[9] << 16 ) |
( ssl->in_msg[10] << 8 ) |
ssl->in_msg[11] );
}
static uint32_t ssl_get_hs_frag_off( mbedtls_ssl_context const *ssl )
{
return( ( ssl->in_msg[6] << 16 ) |
( ssl->in_msg[7] << 8 ) |
ssl->in_msg[8] );
}
static int ssl_check_hs_header( mbedtls_ssl_context const *ssl )
{
uint32_t msg_len, frag_off, frag_len;
msg_len = ssl_get_hs_total_len( ssl );
frag_off = ssl_get_hs_frag_off( ssl );
frag_len = ssl_get_hs_frag_len( ssl );
if( frag_off > msg_len )
return( -1 );
if( frag_len > msg_len - frag_off )
return( -1 );
if( frag_len + 12 > ssl->in_msglen )
return( -1 );
return( 0 );
}
/*
* Mark bits in bitmask (used for DTLS HS reassembly)
*/
static void ssl_bitmask_set( unsigned char *mask, size_t offset, size_t len )
{
unsigned int start_bits, end_bits;
start_bits = 8 - ( offset % 8 );
if( start_bits != 8 )
{
size_t first_byte_idx = offset / 8;
/* Special case */
if( len <= start_bits )
{
for( ; len != 0; len-- )
mask[first_byte_idx] |= 1 << ( start_bits - len );
/* Avoid potential issues with offset or len becoming invalid */
return;
}
offset += start_bits; /* Now offset % 8 == 0 */
len -= start_bits;
for( ; start_bits != 0; start_bits-- )
mask[first_byte_idx] |= 1 << ( start_bits - 1 );
}
end_bits = len % 8;
if( end_bits != 0 )
{
size_t last_byte_idx = ( offset + len ) / 8;
len -= end_bits; /* Now len % 8 == 0 */
for( ; end_bits != 0; end_bits-- )
mask[last_byte_idx] |= 1 << ( 8 - end_bits );
}
memset( mask + offset / 8, 0xFF, len / 8 );
}
/*
* Check that bitmask is full
*/
static int ssl_bitmask_check( unsigned char *mask, size_t len )
{
size_t i;
for( i = 0; i < len / 8; i++ )
if( mask[i] != 0xFF )
return( -1 );
for( i = 0; i < len % 8; i++ )
if( ( mask[len / 8] & ( 1 << ( 7 - i ) ) ) == 0 )
return( -1 );
return( 0 );
}
/* msg_len does not include the handshake header */
static size_t ssl_get_reassembly_buffer_size( size_t msg_len,
unsigned add_bitmap )
{
size_t alloc_len;
alloc_len = 12; /* Handshake header */
alloc_len += msg_len; /* Content buffer */
if( add_bitmap )
alloc_len += msg_len / 8 + ( msg_len % 8 != 0 ); /* Bitmap */
return( alloc_len );
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
static uint32_t ssl_get_hs_total_len( mbedtls_ssl_context const *ssl )
{
return( ( ssl->in_msg[1] << 16 ) |
( ssl->in_msg[2] << 8 ) |
ssl->in_msg[3] );
}
int mbedtls_ssl_prepare_handshake_record( mbedtls_ssl_context *ssl )
{
if( ssl->in_msglen < mbedtls_ssl_hs_hdr_len( ssl ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake message too short: %d",
ssl->in_msglen ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
ssl->in_hslen = mbedtls_ssl_hs_hdr_len( ssl ) + ssl_get_hs_total_len( ssl );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "handshake message: msglen ="
" %d, type = %d, hslen = %d",
ssl->in_msglen, ssl->in_msg[0], ssl->in_hslen ) );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
int ret;
unsigned int recv_msg_seq = ( ssl->in_msg[4] << 8 ) | ssl->in_msg[5];
if( ssl_check_hs_header( ssl ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid handshake header" ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
if( ssl->handshake != NULL &&
( ( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER &&
recv_msg_seq != ssl->handshake->in_msg_seq ) ||
( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER &&
ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_HELLO ) ) )
{
if( recv_msg_seq > ssl->handshake->in_msg_seq )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "received future handshake message of sequence number %u (next %u)",
recv_msg_seq,
ssl->handshake->in_msg_seq ) );
return( MBEDTLS_ERR_SSL_EARLY_MESSAGE );
}
/* Retransmit only on last message from previous flight, to avoid
* too many retransmissions.
* Besides, No sane server ever retransmits HelloVerifyRequest */
if( recv_msg_seq == ssl->handshake->in_flight_start_seq - 1 &&
ssl->in_msg[0] != MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "received message from last flight, "
"message_seq = %d, start_of_flight = %d",
recv_msg_seq,
ssl->handshake->in_flight_start_seq ) );
if( ( ret = mbedtls_ssl_resend( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_resend", ret );
return( ret );
}
}
else
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "dropping out-of-sequence message: "
"message_seq = %d, expected = %d",
recv_msg_seq,
ssl->handshake->in_msg_seq ) );
}
return( MBEDTLS_ERR_SSL_CONTINUE_PROCESSING );
}
/* Wait until message completion to increment in_msg_seq */
/* Message reassembly is handled alongside buffering of future
* messages; the commonality is that both handshake fragments and
* future messages cannot be forwarded immediately to the
* handshake logic layer. */
if( ssl_hs_is_proper_fragment( ssl ) == 1 )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "found fragmented DTLS handshake message" ) );
return( MBEDTLS_ERR_SSL_EARLY_MESSAGE );
}
}
else
#endif /* MBEDTLS_SSL_PROTO_DTLS */
/* With TLS we don't handle fragmentation (for now) */
if( ssl->in_msglen < ssl->in_hslen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "TLS handshake fragmentation not supported" ) );
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
return( 0 );
}
void mbedtls_ssl_update_handshake_status( mbedtls_ssl_context *ssl )
{
mbedtls_ssl_handshake_params * const hs = ssl->handshake;
if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER && hs != NULL )
{
ssl->handshake->update_checksum( ssl, ssl->in_msg, ssl->in_hslen );
}
/* Handshake message is complete, increment counter */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
ssl->handshake != NULL )
{
unsigned offset;
mbedtls_ssl_hs_buffer *hs_buf;
/* Increment handshake sequence number */
hs->in_msg_seq++;
/*
* Clear up handshake buffering and reassembly structure.
*/
/* Free first entry */
ssl_buffering_free_slot( ssl, 0 );
/* Shift all other entries */
for( offset = 0, hs_buf = &hs->buffering.hs[0];
offset + 1 < MBEDTLS_SSL_MAX_BUFFERED_HS;
offset++, hs_buf++ )
{
*hs_buf = *(hs_buf + 1);
}
/* Create a fresh last entry */
memset( hs_buf, 0, sizeof( mbedtls_ssl_hs_buffer ) );
}
#endif
}
/*
* DTLS anti-replay: RFC 6347 4.1.2.6
*
* in_window is a field of bits numbered from 0 (lsb) to 63 (msb).
* Bit n is set iff record number in_window_top - n has been seen.
*
* Usually, in_window_top is the last record number seen and the lsb of
* in_window is set. The only exception is the initial state (record number 0
* not seen yet).
*/
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
static void ssl_dtls_replay_reset( mbedtls_ssl_context *ssl )
{
ssl->in_window_top = 0;
ssl->in_window = 0;
}
static inline uint64_t ssl_load_six_bytes( unsigned char *buf )
{
return( ( (uint64_t) buf[0] << 40 ) |
( (uint64_t) buf[1] << 32 ) |
( (uint64_t) buf[2] << 24 ) |
( (uint64_t) buf[3] << 16 ) |
( (uint64_t) buf[4] << 8 ) |
( (uint64_t) buf[5] ) );
}
/*
* Return 0 if sequence number is acceptable, -1 otherwise
*/
int mbedtls_ssl_dtls_replay_check( mbedtls_ssl_context *ssl )
{
uint64_t rec_seqnum = ssl_load_six_bytes( ssl->in_ctr + 2 );
uint64_t bit;
if( ssl->conf->anti_replay == MBEDTLS_SSL_ANTI_REPLAY_DISABLED )
return( 0 );
if( rec_seqnum > ssl->in_window_top )
return( 0 );
bit = ssl->in_window_top - rec_seqnum;
if( bit >= 64 )
return( -1 );
if( ( ssl->in_window & ( (uint64_t) 1 << bit ) ) != 0 )
return( -1 );
return( 0 );
}
/*
* Update replay window on new validated record
*/
void mbedtls_ssl_dtls_replay_update( mbedtls_ssl_context *ssl )
{
uint64_t rec_seqnum = ssl_load_six_bytes( ssl->in_ctr + 2 );
if( ssl->conf->anti_replay == MBEDTLS_SSL_ANTI_REPLAY_DISABLED )
return;
if( rec_seqnum > ssl->in_window_top )
{
/* Update window_top and the contents of the window */
uint64_t shift = rec_seqnum - ssl->in_window_top;
if( shift >= 64 )
ssl->in_window = 1;
else
{
ssl->in_window <<= shift;
ssl->in_window |= 1;
}
ssl->in_window_top = rec_seqnum;
}
else
{
/* Mark that number as seen in the current window */
uint64_t bit = ssl->in_window_top - rec_seqnum;
if( bit < 64 ) /* Always true, but be extra sure */
ssl->in_window |= (uint64_t) 1 << bit;
}
}
#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */
#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C)
/* Forward declaration */
static int ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial );
/*
* Without any SSL context, check if a datagram looks like a ClientHello with
* a valid cookie, and if it doesn't, generate a HelloVerifyRequest message.
* Both input and output include full DTLS headers.
*
* - if cookie is valid, return 0
* - if ClientHello looks superficially valid but cookie is not,
* fill obuf and set olen, then
* return MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED
* - otherwise return a specific error code
*/
static int ssl_check_dtls_clihlo_cookie(
mbedtls_ssl_cookie_write_t *f_cookie_write,
mbedtls_ssl_cookie_check_t *f_cookie_check,
void *p_cookie,
const unsigned char *cli_id, size_t cli_id_len,
const unsigned char *in, size_t in_len,
unsigned char *obuf, size_t buf_len, size_t *olen )
{
size_t sid_len, cookie_len;
unsigned char *p;
if( f_cookie_write == NULL || f_cookie_check == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
/*
* Structure of ClientHello with record and handshake headers,
* and expected values. We don't need to check a lot, more checks will be
* done when actually parsing the ClientHello - skipping those checks
* avoids code duplication and does not make cookie forging any easier.
*
* 0-0 ContentType type; copied, must be handshake
* 1-2 ProtocolVersion version; copied
* 3-4 uint16 epoch; copied, must be 0
* 5-10 uint48 sequence_number; copied
* 11-12 uint16 length; (ignored)
*
* 13-13 HandshakeType msg_type; (ignored)
* 14-16 uint24 length; (ignored)
* 17-18 uint16 message_seq; copied
* 19-21 uint24 fragment_offset; copied, must be 0
* 22-24 uint24 fragment_length; (ignored)
*
* 25-26 ProtocolVersion client_version; (ignored)
* 27-58 Random random; (ignored)
* 59-xx SessionID session_id; 1 byte len + sid_len content
* 60+ opaque cookie<0..2^8-1>; 1 byte len + content
* ...
*
* Minimum length is 61 bytes.
*/
if( in_len < 61 ||
in[0] != MBEDTLS_SSL_MSG_HANDSHAKE ||
in[3] != 0 || in[4] != 0 ||
in[19] != 0 || in[20] != 0 || in[21] != 0 )
{
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
}
sid_len = in[59];
if( sid_len > in_len - 61 )
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
cookie_len = in[60 + sid_len];
if( cookie_len > in_len - 60 )
return( MBEDTLS_ERR_SSL_BAD_HS_CLIENT_HELLO );
if( f_cookie_check( p_cookie, in + sid_len + 61, cookie_len,
cli_id, cli_id_len ) == 0 )
{
/* Valid cookie */
return( 0 );
}
/*
* If we get here, we've got an invalid cookie, let's prepare HVR.
*
* 0-0 ContentType type; copied
* 1-2 ProtocolVersion version; copied
* 3-4 uint16 epoch; copied
* 5-10 uint48 sequence_number; copied
* 11-12 uint16 length; olen - 13
*
* 13-13 HandshakeType msg_type; hello_verify_request
* 14-16 uint24 length; olen - 25
* 17-18 uint16 message_seq; copied
* 19-21 uint24 fragment_offset; copied
* 22-24 uint24 fragment_length; olen - 25
*
* 25-26 ProtocolVersion server_version; 0xfe 0xff
* 27-27 opaque cookie<0..2^8-1>; cookie_len = olen - 27, cookie
*
* Minimum length is 28.
*/
if( buf_len < 28 )
return( MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL );
/* Copy most fields and adapt others */
memcpy( obuf, in, 25 );
obuf[13] = MBEDTLS_SSL_HS_HELLO_VERIFY_REQUEST;
obuf[25] = 0xfe;
obuf[26] = 0xff;
/* Generate and write actual cookie */
p = obuf + 28;
if( f_cookie_write( p_cookie,
&p, obuf + buf_len, cli_id, cli_id_len ) != 0 )
{
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
*olen = p - obuf;
/* Go back and fill length fields */
obuf[27] = (unsigned char)( *olen - 28 );
obuf[14] = obuf[22] = (unsigned char)( ( *olen - 25 ) >> 16 );
obuf[15] = obuf[23] = (unsigned char)( ( *olen - 25 ) >> 8 );
obuf[16] = obuf[24] = (unsigned char)( ( *olen - 25 ) );
obuf[11] = (unsigned char)( ( *olen - 13 ) >> 8 );
obuf[12] = (unsigned char)( ( *olen - 13 ) );
return( MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED );
}
/*
* Handle possible client reconnect with the same UDP quadruplet
* (RFC 6347 Section 4.2.8).
*
* Called by ssl_parse_record_header() in case we receive an epoch 0 record
* that looks like a ClientHello.
*
* - if the input looks like a ClientHello without cookies,
* send back HelloVerifyRequest, then
* return MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED
* - if the input looks like a ClientHello with a valid cookie,
* reset the session of the current context, and
* return MBEDTLS_ERR_SSL_CLIENT_RECONNECT
* - if anything goes wrong, return a specific error code
*
* mbedtls_ssl_read_record() will ignore the record if anything else than
* MBEDTLS_ERR_SSL_CLIENT_RECONNECT or 0 is returned, although this function
* cannot not return 0.
*/
static int ssl_handle_possible_reconnect( mbedtls_ssl_context *ssl )
{
int ret;
size_t len;
ret = ssl_check_dtls_clihlo_cookie(
ssl->conf->f_cookie_write,
ssl->conf->f_cookie_check,
ssl->conf->p_cookie,
ssl->cli_id, ssl->cli_id_len,
ssl->in_buf, ssl->in_left,
ssl->out_buf, MBEDTLS_SSL_OUT_CONTENT_LEN, &len );
MBEDTLS_SSL_DEBUG_RET( 2, "ssl_check_dtls_clihlo_cookie", ret );
if( ret == MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED )
{
/* Don't check write errors as we can't do anything here.
* If the error is permanent we'll catch it later,
* if it's not, then hopefully it'll work next time. */
(void) ssl->f_send( ssl->p_bio, ssl->out_buf, len );
return( MBEDTLS_ERR_SSL_HELLO_VERIFY_REQUIRED );
}
if( ret == 0 )
{
/* Got a valid cookie, partially reset context */
if( ( ret = ssl_session_reset_int( ssl, 1 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "reset", ret );
return( ret );
}
return( MBEDTLS_ERR_SSL_CLIENT_RECONNECT );
}
return( ret );
}
#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */
/*
* ContentType type;
* ProtocolVersion version;
* uint16 epoch; // DTLS only
* uint48 sequence_number; // DTLS only
* uint16 length;
*
* Return 0 if header looks sane (and, for DTLS, the record is expected)
* MBEDTLS_ERR_SSL_INVALID_RECORD if the header looks bad,
* MBEDTLS_ERR_SSL_UNEXPECTED_RECORD (DTLS only) if sane but unexpected.
*
* With DTLS, mbedtls_ssl_read_record() will:
* 1. proceed with the record if this function returns 0
* 2. drop only the current record if this function returns UNEXPECTED_RECORD
* 3. return CLIENT_RECONNECT if this function return that value
* 4. drop the whole datagram if this function returns anything else.
* Point 2 is needed when the peer is resending, and we have already received
* the first record from a datagram but are still waiting for the others.
*/
static int ssl_parse_record_header( mbedtls_ssl_context *ssl )
{
int major_ver, minor_ver;
MBEDTLS_SSL_DEBUG_BUF( 4, "input record header", ssl->in_hdr, mbedtls_ssl_hdr_len( ssl ) );
ssl->in_msgtype = ssl->in_hdr[0];
ssl->in_msglen = ( ssl->in_len[0] << 8 ) | ssl->in_len[1];
mbedtls_ssl_read_version( &major_ver, &minor_ver, ssl->conf->transport, ssl->in_hdr + 1 );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "input record: msgtype = %d, "
"version = [%d:%d], msglen = %d",
ssl->in_msgtype,
major_ver, minor_ver, ssl->in_msglen ) );
/* Check record type */
if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE &&
ssl->in_msgtype != MBEDTLS_SSL_MSG_ALERT &&
ssl->in_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC &&
ssl->in_msgtype != MBEDTLS_SSL_MSG_APPLICATION_DATA )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "unknown record type" ) );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
/* Silently ignore invalid DTLS records as recommended by RFC 6347
* Section 4.1.2.7 */
if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM )
#endif /* MBEDTLS_SSL_PROTO_DTLS */
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
/* Check version */
if( major_ver != ssl->major_ver )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "major version mismatch" ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
if( minor_ver > ssl->conf->max_minor_ver )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "minor version mismatch" ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
/* Check length against the size of our buffer */
if( ssl->in_msglen > MBEDTLS_SSL_IN_BUFFER_LEN
- (size_t)( ssl->in_msg - ssl->in_buf ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
/*
* DTLS-related tests.
* Check epoch before checking length constraint because
* the latter varies with the epoch. E.g., if a ChangeCipherSpec
* message gets duplicated before the corresponding Finished message,
* the second ChangeCipherSpec should be discarded because it belongs
* to an old epoch, but not because its length is shorter than
* the minimum record length for packets using the new record transform.
* Note that these two kinds of failures are handled differently,
* as an unexpected record is silently skipped but an invalid
* record leads to the entire datagram being dropped.
*/
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
unsigned int rec_epoch = ( ssl->in_ctr[0] << 8 ) | ssl->in_ctr[1];
/* Check epoch (and sequence number) with DTLS */
if( rec_epoch != ssl->in_epoch )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "record from another epoch: "
"expected %d, received %d",
ssl->in_epoch, rec_epoch ) );
#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C)
/*
* Check for an epoch 0 ClientHello. We can't use in_msg here to
* access the first byte of record content (handshake type), as we
* have an active transform (possibly iv_len != 0), so use the
* fact that the record header len is 13 instead.
*/
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER &&
rec_epoch == 0 &&
ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
ssl->in_left > 13 &&
ssl->in_buf[13] == MBEDTLS_SSL_HS_CLIENT_HELLO )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "possible client reconnect "
"from the same port" ) );
return( ssl_handle_possible_reconnect( ssl ) );
}
else
#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */
{
/* Consider buffering the record. */
if( rec_epoch == (unsigned int) ssl->in_epoch + 1 )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Consider record for buffering" ) );
return( MBEDTLS_ERR_SSL_EARLY_MESSAGE );
}
return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD );
}
}
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
/* Replay detection only works for the current epoch */
if( rec_epoch == ssl->in_epoch &&
mbedtls_ssl_dtls_replay_check( ssl ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "replayed record" ) );
return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD );
}
#endif
/* Drop unexpected ApplicationData records,
* except at the beginning of renegotiations */
if( ssl->in_msgtype == MBEDTLS_SSL_MSG_APPLICATION_DATA &&
ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER
#if defined(MBEDTLS_SSL_RENEGOTIATION)
&& ! ( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS &&
ssl->state == MBEDTLS_SSL_SERVER_HELLO )
#endif
)
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "dropping unexpected ApplicationData" ) );
return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD );
}
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
/* Check length against bounds of the current transform and version */
if( ssl->transform_in == NULL )
{
if( ssl->in_msglen < 1 ||
ssl->in_msglen > MBEDTLS_SSL_IN_CONTENT_LEN )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
}
else
{
if( ssl->in_msglen < ssl->transform_in->minlen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
#if defined(MBEDTLS_SSL_PROTO_SSL3)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 &&
ssl->in_msglen > ssl->transform_in->minlen + MBEDTLS_SSL_IN_CONTENT_LEN )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_2)
/*
* TLS encrypted messages can have up to 256 bytes of padding
*/
if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 &&
ssl->in_msglen > ssl->transform_in->minlen +
MBEDTLS_SSL_IN_CONTENT_LEN + 256 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
#endif
}
return( 0 );
}
/*
* If applicable, decrypt (and decompress) record content
*/
static int ssl_prepare_record_content( mbedtls_ssl_context *ssl )
{
int ret, done = 0;
MBEDTLS_SSL_DEBUG_BUF( 4, "input record from network",
ssl->in_hdr, mbedtls_ssl_hdr_len( ssl ) + ssl->in_msglen );
#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
if( mbedtls_ssl_hw_record_read != NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_read()" ) );
ret = mbedtls_ssl_hw_record_read( ssl );
if( ret != 0 && ret != MBEDTLS_ERR_SSL_HW_ACCEL_FALLTHROUGH )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_read", ret );
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
}
if( ret == 0 )
done = 1;
}
#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
if( !done && ssl->transform_in != NULL )
{
if( ( ret = ssl_decrypt_buf( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_decrypt_buf", ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_BUF( 4, "input payload after decrypt",
ssl->in_msg, ssl->in_msglen );
if( ssl->in_msglen > MBEDTLS_SSL_IN_CONTENT_LEN )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad message length" ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
}
#if defined(MBEDTLS_ZLIB_SUPPORT)
if( ssl->transform_in != NULL &&
ssl->session_in->compression == MBEDTLS_SSL_COMPRESS_DEFLATE )
{
if( ( ret = ssl_decompress_buf( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_decompress_buf", ret );
return( ret );
}
}
#endif /* MBEDTLS_ZLIB_SUPPORT */
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
mbedtls_ssl_dtls_replay_update( ssl );
}
#endif
return( 0 );
}
static void ssl_handshake_wrapup_free_hs_transform( mbedtls_ssl_context *ssl );
/*
* Read a record.
*
* Silently ignore non-fatal alert (and for DTLS, invalid records as well,
* RFC 6347 4.1.2.7) and continue reading until a valid record is found.
*
*/
/* Helper functions for mbedtls_ssl_read_record(). */
static int ssl_consume_current_message( mbedtls_ssl_context *ssl );
static int ssl_get_next_record( mbedtls_ssl_context *ssl );
static int ssl_record_is_in_progress( mbedtls_ssl_context *ssl );
int mbedtls_ssl_read_record( mbedtls_ssl_context *ssl,
unsigned update_hs_digest )
{
int ret;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> read record" ) );
if( ssl->keep_current_message == 0 )
{
do {
ret = ssl_consume_current_message( ssl );
if( ret != 0 )
return( ret );
if( ssl_record_is_in_progress( ssl ) == 0 )
{
#if defined(MBEDTLS_SSL_PROTO_DTLS)
int have_buffered = 0;
/* We only check for buffered messages if the
* current datagram is fully consumed. */
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
ssl_next_record_is_in_datagram( ssl ) == 0 )
{
if( ssl_load_buffered_message( ssl ) == 0 )
have_buffered = 1;
}
if( have_buffered == 0 )
#endif /* MBEDTLS_SSL_PROTO_DTLS */
{
ret = ssl_get_next_record( ssl );
if( ret == MBEDTLS_ERR_SSL_CONTINUE_PROCESSING )
continue;
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, ( "ssl_get_next_record" ), ret );
return( ret );
}
}
}
ret = mbedtls_ssl_handle_message_type( ssl );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ret == MBEDTLS_ERR_SSL_EARLY_MESSAGE )
{
/* Buffer future message */
ret = ssl_buffer_message( ssl );
if( ret != 0 )
return( ret );
ret = MBEDTLS_ERR_SSL_CONTINUE_PROCESSING;
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
} while( MBEDTLS_ERR_SSL_NON_FATAL == ret ||
MBEDTLS_ERR_SSL_CONTINUE_PROCESSING == ret );
if( 0 != ret )
{
MBEDTLS_SSL_DEBUG_RET( 1, ( "mbedtls_ssl_handle_message_type" ), ret );
return( ret );
}
if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
update_hs_digest == 1 )
{
mbedtls_ssl_update_handshake_status( ssl );
}
}
else
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "reuse previously read message" ) );
ssl->keep_current_message = 0;
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= read record" ) );
return( 0 );
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
static int ssl_next_record_is_in_datagram( mbedtls_ssl_context *ssl )
{
if( ssl->in_left > ssl->next_record_offset )
return( 1 );
return( 0 );
}
static int ssl_load_buffered_message( mbedtls_ssl_context *ssl )
{
mbedtls_ssl_handshake_params * const hs = ssl->handshake;
mbedtls_ssl_hs_buffer * hs_buf;
int ret = 0;
if( hs == NULL )
return( -1 );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_load_buffered_messsage" ) );
if( ssl->state == MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC ||
ssl->state == MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC )
{
/* Check if we have seen a ChangeCipherSpec before.
* If yes, synthesize a CCS record. */
if( !hs->buffering.seen_ccs )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "CCS not seen in the current flight" ) );
ret = -1;
goto exit;
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Injecting buffered CCS message" ) );
ssl->in_msgtype = MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC;
ssl->in_msglen = 1;
ssl->in_msg[0] = 1;
/* As long as they are equal, the exact value doesn't matter. */
ssl->in_left = 0;
ssl->next_record_offset = 0;
hs->buffering.seen_ccs = 0;
goto exit;
}
#if defined(MBEDTLS_DEBUG_C)
/* Debug only */
{
unsigned offset;
for( offset = 1; offset < MBEDTLS_SSL_MAX_BUFFERED_HS; offset++ )
{
hs_buf = &hs->buffering.hs[offset];
if( hs_buf->is_valid == 1 )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Future message with sequence number %u %s buffered.",
hs->in_msg_seq + offset,
hs_buf->is_complete ? "fully" : "partially" ) );
}
}
}
#endif /* MBEDTLS_DEBUG_C */
/* Check if we have buffered and/or fully reassembled the
* next handshake message. */
hs_buf = &hs->buffering.hs[0];
if( ( hs_buf->is_valid == 1 ) && ( hs_buf->is_complete == 1 ) )
{
/* Synthesize a record containing the buffered HS message. */
size_t msg_len = ( hs_buf->data[1] << 16 ) |
( hs_buf->data[2] << 8 ) |
hs_buf->data[3];
/* Double-check that we haven't accidentally buffered
* a message that doesn't fit into the input buffer. */
if( msg_len + 12 > MBEDTLS_SSL_IN_CONTENT_LEN )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Next handshake message has been buffered - load" ) );
MBEDTLS_SSL_DEBUG_BUF( 3, "Buffered handshake message (incl. header)",
hs_buf->data, msg_len + 12 );
ssl->in_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
ssl->in_hslen = msg_len + 12;
ssl->in_msglen = msg_len + 12;
memcpy( ssl->in_msg, hs_buf->data, ssl->in_hslen );
ret = 0;
goto exit;
}
else
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Next handshake message %u not or only partially bufffered",
hs->in_msg_seq ) );
}
ret = -1;
exit:
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_load_buffered_message" ) );
return( ret );
}
static int ssl_buffer_make_space( mbedtls_ssl_context *ssl,
size_t desired )
{
int offset;
mbedtls_ssl_handshake_params * const hs = ssl->handshake;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Attempt to free buffered messages to have %u bytes available",
(unsigned) desired ) );
/* Get rid of future records epoch first, if such exist. */
ssl_free_buffered_record( ssl );
/* Check if we have enough space available now. */
if( desired <= ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
hs->buffering.total_bytes_buffered ) )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Enough space available after freeing future epoch record" ) );
return( 0 );
}
/* We don't have enough space to buffer the next expected handshake
* message. Remove buffers used for future messages to gain space,
* starting with the most distant one. */
for( offset = MBEDTLS_SSL_MAX_BUFFERED_HS - 1;
offset >= 0; offset-- )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Free buffering slot %d to make space for reassembly of next handshake message",
offset ) );
ssl_buffering_free_slot( ssl, (uint8_t) offset );
/* Check if we have enough space available now. */
if( desired <= ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
hs->buffering.total_bytes_buffered ) )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Enough space available after freeing buffered HS messages" ) );
return( 0 );
}
}
return( -1 );
}
static int ssl_buffer_message( mbedtls_ssl_context *ssl )
{
int ret = 0;
mbedtls_ssl_handshake_params * const hs = ssl->handshake;
if( hs == NULL )
return( 0 );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_buffer_message" ) );
switch( ssl->in_msgtype )
{
case MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC:
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Remember CCS message" ) );
hs->buffering.seen_ccs = 1;
break;
case MBEDTLS_SSL_MSG_HANDSHAKE:
{
unsigned recv_msg_seq_offset;
unsigned recv_msg_seq = ( ssl->in_msg[4] << 8 ) | ssl->in_msg[5];
mbedtls_ssl_hs_buffer *hs_buf;
size_t msg_len = ssl->in_hslen - 12;
/* We should never receive an old handshake
* message - double-check nonetheless. */
if( recv_msg_seq < ssl->handshake->in_msg_seq )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
recv_msg_seq_offset = recv_msg_seq - ssl->handshake->in_msg_seq;
if( recv_msg_seq_offset >= MBEDTLS_SSL_MAX_BUFFERED_HS )
{
/* Silently ignore -- message too far in the future */
MBEDTLS_SSL_DEBUG_MSG( 2,
( "Ignore future HS message with sequence number %u, "
"buffering window %u - %u",
recv_msg_seq, ssl->handshake->in_msg_seq,
ssl->handshake->in_msg_seq + MBEDTLS_SSL_MAX_BUFFERED_HS - 1 ) );
goto exit;
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering HS message with sequence number %u, offset %u ",
recv_msg_seq, recv_msg_seq_offset ) );
hs_buf = &hs->buffering.hs[ recv_msg_seq_offset ];
/* Check if the buffering for this seq nr has already commenced. */
if( !hs_buf->is_valid )
{
size_t reassembly_buf_sz;
hs_buf->is_fragmented =
( ssl_hs_is_proper_fragment( ssl ) == 1 );
/* We copy the message back into the input buffer
* after reassembly, so check that it's not too large.
* This is an implementation-specific limitation
* and not one from the standard, hence it is not
* checked in ssl_check_hs_header(). */
if( msg_len + 12 > MBEDTLS_SSL_IN_CONTENT_LEN )
{
/* Ignore message */
goto exit;
}
/* Check if we have enough space to buffer the message. */
if( hs->buffering.total_bytes_buffered >
MBEDTLS_SSL_DTLS_MAX_BUFFERING )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
reassembly_buf_sz = ssl_get_reassembly_buffer_size( msg_len,
hs_buf->is_fragmented );
if( reassembly_buf_sz > ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
hs->buffering.total_bytes_buffered ) )
{
if( recv_msg_seq_offset > 0 )
{
/* If we can't buffer a future message because
* of space limitations -- ignore. */
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering of future message of size %u would exceed the compile-time limit %u (already %u bytes buffered) -- ignore\n",
(unsigned) msg_len, MBEDTLS_SSL_DTLS_MAX_BUFFERING,
(unsigned) hs->buffering.total_bytes_buffered ) );
goto exit;
}
else
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering of future message of size %u would exceed the compile-time limit %u (already %u bytes buffered) -- attempt to make space by freeing buffered future messages\n",
(unsigned) msg_len, MBEDTLS_SSL_DTLS_MAX_BUFFERING,
(unsigned) hs->buffering.total_bytes_buffered ) );
}
if( ssl_buffer_make_space( ssl, reassembly_buf_sz ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Reassembly of next message of size %u (%u with bitmap) would exceed the compile-time limit %u (already %u bytes buffered) -- fail\n",
(unsigned) msg_len,
(unsigned) reassembly_buf_sz,
MBEDTLS_SSL_DTLS_MAX_BUFFERING,
(unsigned) hs->buffering.total_bytes_buffered ) );
ret = MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL;
goto exit;
}
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "initialize reassembly, total length = %d",
msg_len ) );
hs_buf->data = mbedtls_calloc( 1, reassembly_buf_sz );
if( hs_buf->data == NULL )
{
ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
goto exit;
}
hs_buf->data_len = reassembly_buf_sz;
/* Prepare final header: copy msg_type, length and message_seq,
* then add standardised fragment_offset and fragment_length */
memcpy( hs_buf->data, ssl->in_msg, 6 );
memset( hs_buf->data + 6, 0, 3 );
memcpy( hs_buf->data + 9, hs_buf->data + 1, 3 );
hs_buf->is_valid = 1;
hs->buffering.total_bytes_buffered += reassembly_buf_sz;
}
else
{
/* Make sure msg_type and length are consistent */
if( memcmp( hs_buf->data, ssl->in_msg, 4 ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "Fragment header mismatch - ignore" ) );
/* Ignore */
goto exit;
}
}
if( !hs_buf->is_complete )
{
size_t frag_len, frag_off;
unsigned char * const msg = hs_buf->data + 12;
/*
* Check and copy current fragment
*/
/* Validation of header fields already done in
* mbedtls_ssl_prepare_handshake_record(). */
frag_off = ssl_get_hs_frag_off( ssl );
frag_len = ssl_get_hs_frag_len( ssl );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "adding fragment, offset = %d, length = %d",
frag_off, frag_len ) );
memcpy( msg + frag_off, ssl->in_msg + 12, frag_len );
if( hs_buf->is_fragmented )
{
unsigned char * const bitmask = msg + msg_len;
ssl_bitmask_set( bitmask, frag_off, frag_len );
hs_buf->is_complete = ( ssl_bitmask_check( bitmask,
msg_len ) == 0 );
}
else
{
hs_buf->is_complete = 1;
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "message %scomplete",
hs_buf->is_complete ? "" : "not yet " ) );
}
break;
}
default:
/* We don't buffer other types of messages. */
break;
}
exit:
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_buffer_message" ) );
return( ret );
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
static int ssl_consume_current_message( mbedtls_ssl_context *ssl )
{
/*
* Consume last content-layer message and potentially
* update in_msglen which keeps track of the contents'
* consumption state.
*
* (1) Handshake messages:
* Remove last handshake message, move content
* and adapt in_msglen.
*
* (2) Alert messages:
* Consume whole record content, in_msglen = 0.
*
* (3) Change cipher spec:
* Consume whole record content, in_msglen = 0.
*
* (4) Application data:
* Don't do anything - the record layer provides
* the application data as a stream transport
* and consumes through mbedtls_ssl_read only.
*
*/
/* Case (1): Handshake messages */
if( ssl->in_hslen != 0 )
{
/* Hard assertion to be sure that no application data
* is in flight, as corrupting ssl->in_msglen during
* ssl->in_offt != NULL is fatal. */
if( ssl->in_offt != NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
/*
* Get next Handshake message in the current record
*/
/* Notes:
* (1) in_hslen is not necessarily the size of the
* current handshake content: If DTLS handshake
* fragmentation is used, that's the fragment
* size instead. Using the total handshake message
* size here is faulty and should be changed at
* some point.
* (2) While it doesn't seem to cause problems, one
* has to be very careful not to assume that in_hslen
* is always <= in_msglen in a sensible communication.
* Again, it's wrong for DTLS handshake fragmentation.
* The following check is therefore mandatory, and
* should not be treated as a silently corrected assertion.
* Additionally, ssl->in_hslen might be arbitrarily out of
* bounds after handling a DTLS message with an unexpected
* sequence number, see mbedtls_ssl_prepare_handshake_record.
*/
if( ssl->in_hslen < ssl->in_msglen )
{
ssl->in_msglen -= ssl->in_hslen;
memmove( ssl->in_msg, ssl->in_msg + ssl->in_hslen,
ssl->in_msglen );
MBEDTLS_SSL_DEBUG_BUF( 4, "remaining content in record",
ssl->in_msg, ssl->in_msglen );
}
else
{
ssl->in_msglen = 0;
}
ssl->in_hslen = 0;
}
/* Case (4): Application data */
else if( ssl->in_offt != NULL )
{
return( 0 );
}
/* Everything else (CCS & Alerts) */
else
{
ssl->in_msglen = 0;
}
return( 0 );
}
static int ssl_record_is_in_progress( mbedtls_ssl_context *ssl )
{
if( ssl->in_msglen > 0 )
return( 1 );
return( 0 );
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
static void ssl_free_buffered_record( mbedtls_ssl_context *ssl )
{
mbedtls_ssl_handshake_params * const hs = ssl->handshake;
if( hs == NULL )
return;
if( hs->buffering.future_record.data != NULL )
{
hs->buffering.total_bytes_buffered -=
hs->buffering.future_record.len;
mbedtls_free( hs->buffering.future_record.data );
hs->buffering.future_record.data = NULL;
}
}
static int ssl_load_buffered_record( mbedtls_ssl_context *ssl )
{
mbedtls_ssl_handshake_params * const hs = ssl->handshake;
unsigned char * rec;
size_t rec_len;
unsigned rec_epoch;
if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM )
return( 0 );
if( hs == NULL )
return( 0 );
rec = hs->buffering.future_record.data;
rec_len = hs->buffering.future_record.len;
rec_epoch = hs->buffering.future_record.epoch;
if( rec == NULL )
return( 0 );
/* Only consider loading future records if the
* input buffer is empty. */
if( ssl_next_record_is_in_datagram( ssl ) == 1 )
return( 0 );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> ssl_load_buffered_record" ) );
if( rec_epoch != ssl->in_epoch )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffered record not from current epoch." ) );
goto exit;
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Found buffered record from current epoch - load" ) );
/* Double-check that the record is not too large */
if( rec_len > MBEDTLS_SSL_IN_BUFFER_LEN -
(size_t)( ssl->in_hdr - ssl->in_buf ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
memcpy( ssl->in_hdr, rec, rec_len );
ssl->in_left = rec_len;
ssl->next_record_offset = 0;
ssl_free_buffered_record( ssl );
exit:
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= ssl_load_buffered_record" ) );
return( 0 );
}
static int ssl_buffer_future_record( mbedtls_ssl_context *ssl )
{
mbedtls_ssl_handshake_params * const hs = ssl->handshake;
size_t const rec_hdr_len = 13;
size_t const total_buf_sz = rec_hdr_len + ssl->in_msglen;
/* Don't buffer future records outside handshakes. */
if( hs == NULL )
return( 0 );
/* Only buffer handshake records (we are only interested
* in Finished messages). */
if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
return( 0 );
/* Don't buffer more than one future epoch record. */
if( hs->buffering.future_record.data != NULL )
return( 0 );
/* Don't buffer record if there's not enough buffering space remaining. */
if( total_buf_sz > ( MBEDTLS_SSL_DTLS_MAX_BUFFERING -
hs->buffering.total_bytes_buffered ) )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffering of future epoch record of size %u would exceed the compile-time limit %u (already %u bytes buffered) -- ignore\n",
(unsigned) total_buf_sz, MBEDTLS_SSL_DTLS_MAX_BUFFERING,
(unsigned) hs->buffering.total_bytes_buffered ) );
return( 0 );
}
/* Buffer record */
MBEDTLS_SSL_DEBUG_MSG( 2, ( "Buffer record from epoch %u",
ssl->in_epoch + 1 ) );
MBEDTLS_SSL_DEBUG_BUF( 3, "Buffered record", ssl->in_hdr,
rec_hdr_len + ssl->in_msglen );
/* ssl_parse_record_header() only considers records
* of the next epoch as candidates for buffering. */
hs->buffering.future_record.epoch = ssl->in_epoch + 1;
hs->buffering.future_record.len = total_buf_sz;
hs->buffering.future_record.data =
mbedtls_calloc( 1, hs->buffering.future_record.len );
if( hs->buffering.future_record.data == NULL )
{
/* If we run out of RAM trying to buffer a
* record from the next epoch, just ignore. */
return( 0 );
}
if (hs->buffering.future_record.data != NULL) {
memcpy( hs->buffering.future_record.data, ssl->in_hdr, total_buf_sz );
hs->buffering.total_bytes_buffered += total_buf_sz;
}
return( 0 );
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
static int ssl_get_next_record( mbedtls_ssl_context *ssl )
{
int ret;
#if defined(MBEDTLS_SSL_PROTO_DTLS)
/* We might have buffered a future record; if so,
* and if the epoch matches now, load it.
* On success, this call will set ssl->in_left to
* the length of the buffered record, so that
* the calls to ssl_fetch_input() below will
* essentially be no-ops. */
ret = ssl_load_buffered_record( ssl );
if( ret != 0 )
return( ret );
#endif /* MBEDTLS_SSL_PROTO_DTLS */
if( ( ret = mbedtls_ssl_fetch_input( ssl, mbedtls_ssl_hdr_len( ssl ) ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret );
return( ret );
}
if( ( ret = ssl_parse_record_header( ssl ) ) != 0 )
{
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
ret != MBEDTLS_ERR_SSL_CLIENT_RECONNECT )
{
if( ret == MBEDTLS_ERR_SSL_EARLY_MESSAGE )
{
ret = ssl_buffer_future_record( ssl );
if( ret != 0 )
return( ret );
/* Fall through to handling of unexpected records */
ret = MBEDTLS_ERR_SSL_UNEXPECTED_RECORD;
}
if( ret == MBEDTLS_ERR_SSL_UNEXPECTED_RECORD )
{
/* Skip unexpected record (but not whole datagram) */
ssl->next_record_offset = ssl->in_msglen
+ mbedtls_ssl_hdr_len( ssl );
MBEDTLS_SSL_DEBUG_MSG( 1, ( "discarding unexpected record "
"(header)" ) );
}
else
{
/* Skip invalid record and the rest of the datagram */
ssl->next_record_offset = 0;
ssl->in_left = 0;
MBEDTLS_SSL_DEBUG_MSG( 1, ( "discarding invalid record "
"(header)" ) );
}
/* Get next record */
return( MBEDTLS_ERR_SSL_CONTINUE_PROCESSING );
}
#endif
return( ret );
}
/*
* Read and optionally decrypt the message contents
*/
if( ( ret = mbedtls_ssl_fetch_input( ssl,
mbedtls_ssl_hdr_len( ssl ) + ssl->in_msglen ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_fetch_input", ret );
return( ret );
}
/* Done reading this record, get ready for the next one */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
ssl->next_record_offset = ssl->in_msglen + mbedtls_ssl_hdr_len( ssl );
if( ssl->next_record_offset < ssl->in_left )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "more than one record within datagram" ) );
}
}
else
#endif
ssl->in_left = 0;
if( ( ret = ssl_prepare_record_content( ssl ) ) != 0 )
{
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
/* Silently discard invalid records */
if( ret == MBEDTLS_ERR_SSL_INVALID_RECORD ||
ret == MBEDTLS_ERR_SSL_INVALID_MAC )
{
/* Except when waiting for Finished as a bad mac here
* probably means something went wrong in the handshake
* (eg wrong psk used, mitm downgrade attempt, etc.) */
if( ssl->state == MBEDTLS_SSL_CLIENT_FINISHED ||
ssl->state == MBEDTLS_SSL_SERVER_FINISHED )
{
#if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES)
if( ret == MBEDTLS_ERR_SSL_INVALID_MAC )
{
mbedtls_ssl_send_alert_message( ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC );
}
#endif
return( ret );
}
#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
if( ssl->conf->badmac_limit != 0 &&
++ssl->badmac_seen >= ssl->conf->badmac_limit )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "too many records with bad MAC" ) );
return( MBEDTLS_ERR_SSL_INVALID_MAC );
}
#endif
/* As above, invalid records cause
* dismissal of the whole datagram. */
ssl->next_record_offset = 0;
ssl->in_left = 0;
MBEDTLS_SSL_DEBUG_MSG( 1, ( "discarding invalid record (mac)" ) );
return( MBEDTLS_ERR_SSL_CONTINUE_PROCESSING );
}
return( ret );
}
else
#endif
{
/* Error out (and send alert) on invalid records */
#if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES)
if( ret == MBEDTLS_ERR_SSL_INVALID_MAC )
{
mbedtls_ssl_send_alert_message( ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_BAD_RECORD_MAC );
}
#endif
return( ret );
}
}
return( 0 );
}
int mbedtls_ssl_handle_message_type( mbedtls_ssl_context *ssl )
{
int ret;
/*
* Handle particular types of records
*/
if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE )
{
if( ( ret = mbedtls_ssl_prepare_handshake_record( ssl ) ) != 0 )
{
return( ret );
}
}
if( ssl->in_msgtype == MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC )
{
if( ssl->in_msglen != 1 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid CCS message, len: %d",
ssl->in_msglen ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
if( ssl->in_msg[0] != 1 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid CCS message, content: %02x",
ssl->in_msg[0] ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
ssl->state != MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC &&
ssl->state != MBEDTLS_SSL_SERVER_CHANGE_CIPHER_SPEC )
{
if( ssl->handshake == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "dropping ChangeCipherSpec outside handshake" ) );
return( MBEDTLS_ERR_SSL_UNEXPECTED_RECORD );
}
MBEDTLS_SSL_DEBUG_MSG( 1, ( "received out-of-order ChangeCipherSpec - remember" ) );
return( MBEDTLS_ERR_SSL_EARLY_MESSAGE );
}
#endif
}
if( ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT )
{
if( ssl->in_msglen != 2 )
{
/* Note: Standard allows for more than one 2 byte alert
to be packed in a single message, but Mbed TLS doesn't
currently support this. */
MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid alert message, len: %d",
ssl->in_msglen ) );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "got an alert message, type: [%d:%d]",
ssl->in_msg[0], ssl->in_msg[1] ) );
/*
* Ignore non-fatal alerts, except close_notify and no_renegotiation
*/
if( ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_FATAL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "is a fatal alert message (msg %d)",
ssl->in_msg[1] ) );
return( MBEDTLS_ERR_SSL_FATAL_ALERT_MESSAGE );
}
if( ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING &&
ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "is a close notify message" ) );
return( MBEDTLS_ERR_SSL_PEER_CLOSE_NOTIFY );
}
#if defined(MBEDTLS_SSL_RENEGOTIATION_ENABLED)
if( ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING &&
ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "is a SSLv3 no renegotiation alert" ) );
/* Will be handled when trying to parse ServerHello */
return( 0 );
}
#endif
#if defined(MBEDTLS_SSL_PROTO_SSL3) && defined(MBEDTLS_SSL_SRV_C)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 &&
ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING &&
ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_NO_CERT )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "is a SSLv3 no_cert" ) );
/* Will be handled in mbedtls_ssl_parse_certificate() */
return( 0 );
}
#endif /* MBEDTLS_SSL_PROTO_SSL3 && MBEDTLS_SSL_SRV_C */
/* Silently ignore: fetch new message */
return MBEDTLS_ERR_SSL_NON_FATAL;
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
ssl->handshake != NULL &&
ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER )
{
ssl_handshake_wrapup_free_hs_transform( ssl );
}
#endif
return( 0 );
}
int mbedtls_ssl_send_fatal_handshake_failure( mbedtls_ssl_context *ssl )
{
int ret;
if( ( ret = mbedtls_ssl_send_alert_message( ssl,
MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE ) ) != 0 )
{
return( ret );
}
return( 0 );
}
int mbedtls_ssl_send_alert_message( mbedtls_ssl_context *ssl,
unsigned char level,
unsigned char message )
{
int ret;
if( ssl == NULL || ssl->conf == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> send alert message" ) );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "send alert level=%u message=%u", level, message ));
ssl->out_msgtype = MBEDTLS_SSL_MSG_ALERT;
ssl->out_msglen = 2;
ssl->out_msg[0] = level;
ssl->out_msg[1] = message;
if( ( ret = mbedtls_ssl_write_record( ssl, SSL_FORCE_FLUSH ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= send alert message" ) );
return( 0 );
}
/*
* Handshake functions
*/
#if !defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
/* No certificate support -> dummy functions */
int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl )
{
const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate" ) );
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) );
ssl->state++;
return( 0 );
}
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl )
{
const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate" ) );
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) );
ssl->state++;
return( 0 );
}
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#else
/* Some certificate support -> implement write and parse */
int mbedtls_ssl_write_certificate( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
size_t i, n;
const mbedtls_x509_crt *crt;
const mbedtls_ssl_ciphersuite_t *ciphersuite_info = ssl->transform_negotiate->ciphersuite_info;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write certificate" ) );
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) );
ssl->state++;
return( 0 );
}
#if defined(MBEDTLS_SSL_CLI_C)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
{
if( ssl->client_auth == 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate" ) );
ssl->state++;
return( 0 );
}
#if defined(MBEDTLS_SSL_PROTO_SSL3)
/*
* If using SSLv3 and got no cert, send an Alert message
* (otherwise an empty Certificate message will be sent).
*/
if( mbedtls_ssl_own_cert( ssl ) == NULL &&
ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
{
ssl->out_msglen = 2;
ssl->out_msgtype = MBEDTLS_SSL_MSG_ALERT;
ssl->out_msg[0] = MBEDTLS_SSL_ALERT_LEVEL_WARNING;
ssl->out_msg[1] = MBEDTLS_SSL_ALERT_MSG_NO_CERT;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "got no certificate to send" ) );
goto write_msg;
}
#endif /* MBEDTLS_SSL_PROTO_SSL3 */
}
#endif /* MBEDTLS_SSL_CLI_C */
#if defined(MBEDTLS_SSL_SRV_C)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
{
if( mbedtls_ssl_own_cert( ssl ) == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no certificate to send" ) );
return( MBEDTLS_ERR_SSL_CERTIFICATE_REQUIRED );
}
}
#endif
MBEDTLS_SSL_DEBUG_CRT( 3, "own certificate", mbedtls_ssl_own_cert( ssl ) );
/*
* 0 . 0 handshake type
* 1 . 3 handshake length
* 4 . 6 length of all certs
* 7 . 9 length of cert. 1
* 10 . n-1 peer certificate
* n . n+2 length of cert. 2
* n+3 . ... upper level cert, etc.
*/
i = 7;
crt = mbedtls_ssl_own_cert( ssl );
while( crt != NULL )
{
n = crt->raw.len;
if( n > MBEDTLS_SSL_OUT_CONTENT_LEN - 3 - i )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "certificate too large, %d > %d",
i + 3 + n, MBEDTLS_SSL_OUT_CONTENT_LEN ) );
return( MBEDTLS_ERR_SSL_CERTIFICATE_TOO_LARGE );
}
ssl->out_msg[i ] = (unsigned char)( n >> 16 );
ssl->out_msg[i + 1] = (unsigned char)( n >> 8 );
ssl->out_msg[i + 2] = (unsigned char)( n );
i += 3; memcpy( ssl->out_msg + i, crt->raw.p, n );
i += n; crt = crt->next;
}
ssl->out_msg[4] = (unsigned char)( ( i - 7 ) >> 16 );
ssl->out_msg[5] = (unsigned char)( ( i - 7 ) >> 8 );
ssl->out_msg[6] = (unsigned char)( ( i - 7 ) );
ssl->out_msglen = i;
ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
ssl->out_msg[0] = MBEDTLS_SSL_HS_CERTIFICATE;
#if defined(MBEDTLS_SSL_PROTO_SSL3) && defined(MBEDTLS_SSL_CLI_C)
write_msg:
#endif
ssl->state++;
if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write certificate" ) );
return( ret );
}
/*
* Once the certificate message is read, parse it into a cert chain and
* perform basic checks, but leave actual verification to the caller
*/
static int ssl_parse_certificate_chain( mbedtls_ssl_context *ssl )
{
int ret;
size_t i, n;
uint8_t alert;
#if defined(MBEDTLS_SSL_SRV_C)
#if defined(MBEDTLS_SSL_PROTO_SSL3)
/*
* Check if the client sent an empty certificate
*/
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
{
if( ssl->in_msglen == 2 &&
ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT &&
ssl->in_msg[0] == MBEDTLS_SSL_ALERT_LEVEL_WARNING &&
ssl->in_msg[1] == MBEDTLS_SSL_ALERT_MSG_NO_CERT )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "SSLv3 client has no certificate" ) );
/* The client was asked for a certificate but didn't send
one. The client should know what's going on, so we
don't send an alert. */
ssl->session_negotiate->verify_result = MBEDTLS_X509_BADCERT_MISSING;
return( MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE );
}
}
#endif /* MBEDTLS_SSL_PROTO_SSL3 */
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_0 )
{
if( ssl->in_hslen == 3 + mbedtls_ssl_hs_hdr_len( ssl ) &&
ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE &&
ssl->in_msg[0] == MBEDTLS_SSL_HS_CERTIFICATE &&
memcmp( ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ), "\0\0\0", 3 ) == 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "TLSv1 client has no certificate" ) );
/* The client was asked for a certificate but didn't send
one. The client should know what's going on, so we
don't send an alert. */
ssl->session_negotiate->verify_result = MBEDTLS_X509_BADCERT_MISSING;
return( MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE );
}
}
#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
MBEDTLS_SSL_PROTO_TLS1_2 */
#endif /* MBEDTLS_SSL_SRV_C */
if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
if( ssl->in_msg[0] != MBEDTLS_SSL_HS_CERTIFICATE ||
ssl->in_hslen < mbedtls_ssl_hs_hdr_len( ssl ) + 3 + 3 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
}
i = mbedtls_ssl_hs_hdr_len( ssl );
/*
* Same message structure as in mbedtls_ssl_write_certificate()
*/
n = ( ssl->in_msg[i+1] << 8 ) | ssl->in_msg[i+2];
if( ssl->in_msg[i] != 0 ||
ssl->in_hslen != n + 3 + mbedtls_ssl_hs_hdr_len( ssl ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
}
/* In case we tried to reuse a session but it failed */
if( ssl->session_negotiate->peer_cert != NULL )
{
mbedtls_x509_crt_free( ssl->session_negotiate->peer_cert );
mbedtls_free( ssl->session_negotiate->peer_cert );
}
if( ( ssl->session_negotiate->peer_cert = mbedtls_calloc( 1,
sizeof( mbedtls_x509_crt ) ) ) == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed",
sizeof( mbedtls_x509_crt ) ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
}
mbedtls_x509_crt_init( ssl->session_negotiate->peer_cert );
i += 3;
while( i < ssl->in_hslen )
{
if ( i + 3 > ssl->in_hslen ) {
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
}
if( ssl->in_msg[i] != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
}
n = ( (unsigned int) ssl->in_msg[i + 1] << 8 )
| (unsigned int) ssl->in_msg[i + 2];
i += 3;
if( n < 128 || i + n > ssl->in_hslen )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
}
ret = mbedtls_x509_crt_parse_der( ssl->session_negotiate->peer_cert,
ssl->in_msg + i, n );
switch( ret )
{
case 0: /*ok*/
case MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG + MBEDTLS_ERR_OID_NOT_FOUND:
/* Ignore certificate with an unknown algorithm: maybe a
prior certificate was already trusted. */
break;
case MBEDTLS_ERR_X509_ALLOC_FAILED:
alert = MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR;
goto crt_parse_der_failed;
case MBEDTLS_ERR_X509_UNKNOWN_VERSION:
alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
goto crt_parse_der_failed;
default:
alert = MBEDTLS_SSL_ALERT_MSG_BAD_CERT;
crt_parse_der_failed:
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL, alert );
MBEDTLS_SSL_DEBUG_RET( 1, " mbedtls_x509_crt_parse_der", ret );
return( ret );
}
i += n;
}
MBEDTLS_SSL_DEBUG_CRT( 3, "peer certificate", ssl->session_negotiate->peer_cert );
/*
* On client, make sure the server cert doesn't change during renego to
* avoid "triple handshake" attack: https://secure-resumption.com/
*/
#if defined(MBEDTLS_SSL_RENEGOTIATION) && defined(MBEDTLS_SSL_CLI_C)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT &&
ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
{
if( ssl->session->peer_cert == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "new server cert during renegotiation" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
}
if( ssl->session->peer_cert->raw.len !=
ssl->session_negotiate->peer_cert->raw.len ||
memcmp( ssl->session->peer_cert->raw.p,
ssl->session_negotiate->peer_cert->raw.p,
ssl->session->peer_cert->raw.len ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "server cert changed during renegotiation" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED );
return( MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE );
}
}
#endif /* MBEDTLS_SSL_RENEGOTIATION && MBEDTLS_SSL_CLI_C */
return( 0 );
}
/* Modify for AliOS Things begin. 2019-06-17 */
/* compare certificate chain instead of verify. */
static int ssl_compare_certificate_chain( mbedtls_ssl_context *ssl )
{
mbedtls_x509_crt *local_cert;
mbedtls_x509_crt *peer_cert;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> compare certificate" ) );
if( ( ssl == NULL ) || ( ssl->conf == NULL ) || ( ssl->conf->ca_chain == NULL ) ||
( ssl->session_negotiate == NULL ) || ( ssl->session_negotiate->peer_cert == NULL ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid parameter" ) );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
local_cert = ssl->conf->ca_chain;
peer_cert = ssl->session_negotiate->peer_cert;
do
{
if( local_cert->raw.tag != peer_cert->raw.tag )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "compare certificate failed, raw.tag not equal." ) );
return( MBEDTLS_ERR_X509_CERT_VERIFY_FAILED );
}
if( local_cert->raw.len != peer_cert->raw.len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "compare certificate failed, raw.len not equal." ) );
return( MBEDTLS_ERR_X509_CERT_VERIFY_FAILED );
}
if( memcmp( local_cert->raw.p, peer_cert->raw.p, local_cert->raw.len ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "compare certificate failed, content not equal." ) );
return( MBEDTLS_ERR_X509_CERT_VERIFY_FAILED );
}
} while( ( local_cert->next != NULL ) && ( peer_cert->next != NULL ) );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= compare certificate" ) );
return( 0 );
}
/* Modify for AliOS Things end. 2019-06-17 */
int mbedtls_ssl_parse_certificate( mbedtls_ssl_context *ssl )
{
int ret;
const mbedtls_ssl_ciphersuite_t * const ciphersuite_info =
ssl->transform_negotiate->ciphersuite_info;
#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
const int authmode = ssl->handshake->sni_authmode != MBEDTLS_SSL_VERIFY_UNSET
? ssl->handshake->sni_authmode
: ssl->conf->authmode;
#else
const int authmode = ssl->conf->authmode;
#endif
void *rs_ctx = NULL;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse certificate" ) );
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) );
ssl->state++;
return( 0 );
}
#if defined(MBEDTLS_SSL_SRV_C)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) );
ssl->state++;
return( 0 );
}
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
authmode == MBEDTLS_SSL_VERIFY_NONE )
{
ssl->session_negotiate->verify_result = MBEDTLS_X509_BADCERT_SKIP_VERIFY;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip parse certificate" ) );
ssl->state++;
return( 0 );
}
#endif
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ssl->handshake->ecrs_enabled &&
ssl->handshake->ecrs_state == ssl_ecrs_crt_verify )
{
goto crt_verify;
}
#endif
if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
{
/* mbedtls_ssl_read_record may have sent an alert already. We
let it decide whether to alert. */
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
return( ret );
}
if( ( ret = ssl_parse_certificate_chain( ssl ) ) != 0 )
{
#if defined(MBEDTLS_SSL_SRV_C)
if( ret == MBEDTLS_ERR_SSL_NO_CLIENT_CERTIFICATE &&
authmode == MBEDTLS_SSL_VERIFY_OPTIONAL )
{
ret = 0;
}
#endif
ssl->state++;
return( ret );
}
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ssl->handshake->ecrs_enabled)
ssl->handshake->ecrs_state = ssl_ecrs_crt_verify;
crt_verify:
if( ssl->handshake->ecrs_enabled)
rs_ctx = &ssl->handshake->ecrs_ctx;
#endif
if( authmode != MBEDTLS_SSL_VERIFY_NONE )
{
mbedtls_x509_crt *ca_chain;
mbedtls_x509_crl *ca_crl;
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
if( ssl->handshake->sni_ca_chain != NULL )
{
ca_chain = ssl->handshake->sni_ca_chain;
ca_crl = ssl->handshake->sni_ca_crl;
}
else
#endif
{
ca_chain = ssl->conf->ca_chain;
ca_crl = ssl->conf->ca_crl;
}
/* Modify for AliOS Things begin. 2019-06-17 */
if( authmode == MBEDTLS_SSL_VERIFY_COMPARE )
{
/* Main check: compare certificate */
ret = ssl_compare_certificate_chain( ssl );
if( ret != 0 )
{
ssl->session_negotiate->verify_result |= MBEDTLS_X509_BADCERT_OTHER;
}
}
else
{
/*
* Main check: verify certificate
*/
ret = mbedtls_x509_crt_verify_restartable(
ssl->session_negotiate->peer_cert,
ca_chain, ca_crl,
ssl->conf->cert_profile,
ssl->hostname,
&ssl->session_negotiate->verify_result,
ssl->conf->f_vrfy, ssl->conf->p_vrfy, rs_ctx );
}
/* Modify for AliOS Things end. 2019-06-17 */
if( ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "x509_verify_cert", ret );
}
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
if( ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
return( MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS );
#endif
/*
* Secondary checks: always done, but change 'ret' only if it was 0
*/
#if defined(MBEDTLS_ECP_C)
{
const mbedtls_pk_context *pk = &ssl->session_negotiate->peer_cert->pk;
/* If certificate uses an EC key, make sure the curve is OK */
if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECKEY ) &&
mbedtls_ssl_check_curve( ssl, mbedtls_pk_ec( *pk )->grp.id ) != 0 )
{
ssl->session_negotiate->verify_result |= MBEDTLS_X509_BADCERT_BAD_KEY;
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate (EC key curve)" ) );
if( ret == 0 )
ret = MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE;
}
}
#endif /* MBEDTLS_ECP_C */
if( mbedtls_ssl_check_cert_usage( ssl->session_negotiate->peer_cert,
ciphersuite_info,
! ssl->conf->endpoint,
&ssl->session_negotiate->verify_result ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad certificate (usage extensions)" ) );
if( ret == 0 )
ret = MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE;
}
/* mbedtls_x509_crt_verify_with_profile is supposed to report a
* verification failure through MBEDTLS_ERR_X509_CERT_VERIFY_FAILED,
* with details encoded in the verification flags. All other kinds
* of error codes, including those from the user provided f_vrfy
* functions, are treated as fatal and lead to a failure of
* ssl_parse_certificate even if verification was optional. */
if( authmode == MBEDTLS_SSL_VERIFY_OPTIONAL &&
( ret == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED ||
ret == MBEDTLS_ERR_SSL_BAD_HS_CERTIFICATE ) )
{
ret = 0;
}
/* Modify for AliOS Things begin. 2019-06-17 */
if( ca_chain == NULL && ( ( authmode == MBEDTLS_SSL_VERIFY_REQUIRED )
|| ( authmode == MBEDTLS_SSL_VERIFY_COMPARE ) ) )
/* Modify for AliOS Things end. 2019-06-17 */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "got no CA chain" ) );
ret = MBEDTLS_ERR_SSL_CA_CHAIN_REQUIRED;
}
if( ret != 0 )
{
uint8_t alert;
/* The certificate may have been rejected for several reasons.
Pick one and send the corresponding alert. Which alert to send
may be a subject of debate in some cases. */
if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_OTHER )
alert = MBEDTLS_SSL_ALERT_MSG_ACCESS_DENIED;
else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_CN_MISMATCH )
alert = MBEDTLS_SSL_ALERT_MSG_BAD_CERT;
else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_KEY_USAGE )
alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_EXT_KEY_USAGE )
alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_NS_CERT_TYPE )
alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_BAD_PK )
alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_BAD_KEY )
alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_CERT;
else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_EXPIRED )
alert = MBEDTLS_SSL_ALERT_MSG_CERT_EXPIRED;
else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_REVOKED )
alert = MBEDTLS_SSL_ALERT_MSG_CERT_REVOKED;
else if( ssl->session_negotiate->verify_result & MBEDTLS_X509_BADCERT_NOT_TRUSTED )
alert = MBEDTLS_SSL_ALERT_MSG_UNKNOWN_CA;
else
alert = MBEDTLS_SSL_ALERT_MSG_CERT_UNKNOWN;
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
alert );
}
#if defined(MBEDTLS_DEBUG_C)
if( ssl->session_negotiate->verify_result != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "! Certificate verification flags %x",
ssl->session_negotiate->verify_result ) );
}
else
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "Certificate verification flags clear" ) );
}
#endif /* MBEDTLS_DEBUG_C */
}
ssl->state++;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse certificate" ) );
return( ret );
}
#endif /* !MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
!MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED
!MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED
!MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED
!MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
!MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED
!MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
int mbedtls_ssl_write_change_cipher_spec( mbedtls_ssl_context *ssl )
{
int ret;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write change cipher spec" ) );
ssl->out_msgtype = MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC;
ssl->out_msglen = 1;
ssl->out_msg[0] = 1;
ssl->state++;
if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write change cipher spec" ) );
return( 0 );
}
int mbedtls_ssl_parse_change_cipher_spec( mbedtls_ssl_context *ssl )
{
int ret;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse change cipher spec" ) );
if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
return( ret );
}
if( ssl->in_msgtype != MBEDTLS_SSL_MSG_CHANGE_CIPHER_SPEC )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad change cipher spec message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
/* CCS records are only accepted if they have length 1 and content '1',
* so we don't need to check this here. */
/*
* Switch to our negotiated transform and session parameters for inbound
* data.
*/
MBEDTLS_SSL_DEBUG_MSG( 3, ( "switching to new transform spec for inbound data" ) );
ssl->transform_in = ssl->transform_negotiate;
ssl->session_in = ssl->session_negotiate;
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
ssl_dtls_replay_reset( ssl );
#endif
/* Increment epoch */
if( ++ssl->in_epoch == 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS epoch would wrap" ) );
/* This is highly unlikely to happen for legitimate reasons, so
treat it as an attack and don't send an alert. */
return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING );
}
}
else
#endif /* MBEDTLS_SSL_PROTO_DTLS */
memset( ssl->in_ctr, 0, 8 );
ssl_update_in_pointers( ssl, ssl->transform_negotiate );
#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
if( mbedtls_ssl_hw_record_activate != NULL )
{
if( ( ret = mbedtls_ssl_hw_record_activate( ssl, MBEDTLS_SSL_CHANNEL_INBOUND ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_activate", ret );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
}
}
#endif
ssl->state++;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse change cipher spec" ) );
return( 0 );
}
void mbedtls_ssl_optimize_checksum( mbedtls_ssl_context *ssl,
const mbedtls_ssl_ciphersuite_t *ciphersuite_info )
{
((void) ciphersuite_info);
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1)
if( ssl->minor_ver < MBEDTLS_SSL_MINOR_VERSION_3 )
ssl->handshake->update_checksum = ssl_update_checksum_md5sha1;
else
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
#if defined(MBEDTLS_SHA512_C)
if( ciphersuite_info->mac == MBEDTLS_MD_SHA384 )
ssl->handshake->update_checksum = ssl_update_checksum_sha384;
else
#endif
#if defined(MBEDTLS_SHA256_C)
if( ciphersuite_info->mac != MBEDTLS_MD_SHA384 )
ssl->handshake->update_checksum = ssl_update_checksum_sha256;
else
#endif
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return;
}
}
void mbedtls_ssl_reset_checksum( mbedtls_ssl_context *ssl )
{
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1)
mbedtls_md5_starts_ret( &ssl->handshake->fin_md5 );
mbedtls_sha1_starts_ret( &ssl->handshake->fin_sha1 );
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
#if defined(MBEDTLS_SHA256_C)
mbedtls_sha256_starts_ret( &ssl->handshake->fin_sha256, 0 );
#endif
#if defined(MBEDTLS_SHA512_C)
mbedtls_sha512_starts_ret( &ssl->handshake->fin_sha512, 1 );
#endif
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
}
static void ssl_update_checksum_start( mbedtls_ssl_context *ssl,
const unsigned char *buf, size_t len )
{
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1)
mbedtls_md5_update_ret( &ssl->handshake->fin_md5 , buf, len );
mbedtls_sha1_update_ret( &ssl->handshake->fin_sha1, buf, len );
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
#if defined(MBEDTLS_SHA256_C)
mbedtls_sha256_update_ret( &ssl->handshake->fin_sha256, buf, len );
#endif
#if defined(MBEDTLS_SHA512_C)
mbedtls_sha512_update_ret( &ssl->handshake->fin_sha512, buf, len );
#endif
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
}
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1)
static void ssl_update_checksum_md5sha1( mbedtls_ssl_context *ssl,
const unsigned char *buf, size_t len )
{
mbedtls_md5_update_ret( &ssl->handshake->fin_md5 , buf, len );
mbedtls_sha1_update_ret( &ssl->handshake->fin_sha1, buf, len );
}
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
#if defined(MBEDTLS_SHA256_C)
static void ssl_update_checksum_sha256( mbedtls_ssl_context *ssl,
const unsigned char *buf, size_t len )
{
mbedtls_sha256_update_ret( &ssl->handshake->fin_sha256, buf, len );
}
#endif
#if defined(MBEDTLS_SHA512_C)
static void ssl_update_checksum_sha384( mbedtls_ssl_context *ssl,
const unsigned char *buf, size_t len )
{
mbedtls_sha512_update_ret( &ssl->handshake->fin_sha512, buf, len );
}
#endif
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
#if defined(MBEDTLS_SSL_PROTO_SSL3)
static void ssl_calc_finished_ssl(
mbedtls_ssl_context *ssl, unsigned char *buf, int from )
{
const char *sender;
mbedtls_md5_context md5;
mbedtls_sha1_context sha1;
unsigned char padbuf[48];
unsigned char md5sum[16];
unsigned char sha1sum[20];
mbedtls_ssl_session *session = ssl->session_negotiate;
if( !session )
session = ssl->session;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished ssl" ) );
mbedtls_md5_init( &md5 );
mbedtls_sha1_init( &sha1 );
mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 );
mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 );
/*
* SSLv3:
* hash =
* MD5( master + pad2 +
* MD5( handshake + sender + master + pad1 ) )
* + SHA1( master + pad2 +
* SHA1( handshake + sender + master + pad1 ) )
*/
#if !defined(MBEDTLS_MD5_ALT)
MBEDTLS_SSL_DEBUG_BUF( 4, "finished md5 state", (unsigned char *)
md5.state, sizeof( md5.state ) );
#endif
#if !defined(MBEDTLS_SHA1_ALT)
MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha1 state", (unsigned char *)
sha1.state, sizeof( sha1.state ) );
#endif
sender = ( from == MBEDTLS_SSL_IS_CLIENT ) ? "CLNT"
: "SRVR";
memset( padbuf, 0x36, 48 );
mbedtls_md5_update_ret( &md5, (const unsigned char *) sender, 4 );
mbedtls_md5_update_ret( &md5, session->master, 48 );
mbedtls_md5_update_ret( &md5, padbuf, 48 );
mbedtls_md5_finish_ret( &md5, md5sum );
mbedtls_sha1_update_ret( &sha1, (const unsigned char *) sender, 4 );
mbedtls_sha1_update_ret( &sha1, session->master, 48 );
mbedtls_sha1_update_ret( &sha1, padbuf, 40 );
mbedtls_sha1_finish_ret( &sha1, sha1sum );
memset( padbuf, 0x5C, 48 );
mbedtls_md5_starts_ret( &md5 );
mbedtls_md5_update_ret( &md5, session->master, 48 );
mbedtls_md5_update_ret( &md5, padbuf, 48 );
mbedtls_md5_update_ret( &md5, md5sum, 16 );
mbedtls_md5_finish_ret( &md5, buf );
mbedtls_sha1_starts_ret( &sha1 );
mbedtls_sha1_update_ret( &sha1, session->master, 48 );
mbedtls_sha1_update_ret( &sha1, padbuf , 40 );
mbedtls_sha1_update_ret( &sha1, sha1sum, 20 );
mbedtls_sha1_finish_ret( &sha1, buf + 16 );
MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, 36 );
mbedtls_md5_free( &md5 );
mbedtls_sha1_free( &sha1 );
mbedtls_platform_zeroize( padbuf, sizeof( padbuf ) );
mbedtls_platform_zeroize( md5sum, sizeof( md5sum ) );
mbedtls_platform_zeroize( sha1sum, sizeof( sha1sum ) );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) );
}
#endif /* MBEDTLS_SSL_PROTO_SSL3 */
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
static void ssl_calc_finished_tls(
mbedtls_ssl_context *ssl, unsigned char *buf, int from )
{
int len = 12;
const char *sender;
mbedtls_md5_context md5;
mbedtls_sha1_context sha1;
unsigned char padbuf[36];
mbedtls_ssl_session *session = ssl->session_negotiate;
if( !session )
session = ssl->session;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished tls" ) );
mbedtls_md5_init( &md5 );
mbedtls_sha1_init( &sha1 );
mbedtls_md5_clone( &md5, &ssl->handshake->fin_md5 );
mbedtls_sha1_clone( &sha1, &ssl->handshake->fin_sha1 );
/*
* TLSv1:
* hash = PRF( master, finished_label,
* MD5( handshake ) + SHA1( handshake ) )[0..11]
*/
#if !defined(MBEDTLS_MD5_ALT)
MBEDTLS_SSL_DEBUG_BUF( 4, "finished md5 state", (unsigned char *)
md5.state, sizeof( md5.state ) );
#endif
#if !defined(MBEDTLS_SHA1_ALT)
MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha1 state", (unsigned char *)
sha1.state, sizeof( sha1.state ) );
#endif
sender = ( from == MBEDTLS_SSL_IS_CLIENT )
? "client finished"
: "server finished";
mbedtls_md5_finish_ret( &md5, padbuf );
mbedtls_sha1_finish_ret( &sha1, padbuf + 16 );
ssl->handshake->tls_prf( session->master, 48, sender,
padbuf, 36, buf, len );
MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len );
mbedtls_md5_free( &md5 );
mbedtls_sha1_free( &sha1 );
mbedtls_platform_zeroize( padbuf, sizeof( padbuf ) );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) );
}
#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
#if defined(MBEDTLS_SHA256_C)
static void ssl_calc_finished_tls_sha256(
mbedtls_ssl_context *ssl, unsigned char *buf, int from )
{
int len = 12;
const char *sender;
mbedtls_sha256_context sha256;
unsigned char padbuf[32];
mbedtls_ssl_session *session = ssl->session_negotiate;
if( !session )
session = ssl->session;
mbedtls_sha256_init( &sha256 );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished tls sha256" ) );
mbedtls_sha256_clone( &sha256, &ssl->handshake->fin_sha256 );
/*
* TLSv1.2:
* hash = PRF( master, finished_label,
* Hash( handshake ) )[0.11]
*/
#if !defined(MBEDTLS_SHA256_ALT)
MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha2 state", (unsigned char *)
sha256.state, sizeof( sha256.state ) );
#endif
sender = ( from == MBEDTLS_SSL_IS_CLIENT )
? "client finished"
: "server finished";
mbedtls_sha256_finish_ret( &sha256, padbuf );
ssl->handshake->tls_prf( session->master, 48, sender,
padbuf, 32, buf, len );
MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len );
mbedtls_sha256_free( &sha256 );
mbedtls_platform_zeroize( padbuf, sizeof( padbuf ) );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) );
}
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
static void ssl_calc_finished_tls_sha384(
mbedtls_ssl_context *ssl, unsigned char *buf, int from )
{
int len = 12;
const char *sender;
mbedtls_sha512_context sha512;
unsigned char padbuf[48];
mbedtls_ssl_session *session = ssl->session_negotiate;
if( !session )
session = ssl->session;
mbedtls_sha512_init( &sha512 );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> calc finished tls sha384" ) );
mbedtls_sha512_clone( &sha512, &ssl->handshake->fin_sha512 );
/*
* TLSv1.2:
* hash = PRF( master, finished_label,
* Hash( handshake ) )[0.11]
*/
#if !defined(MBEDTLS_SHA512_ALT)
MBEDTLS_SSL_DEBUG_BUF( 4, "finished sha512 state", (unsigned char *)
sha512.state, sizeof( sha512.state ) );
#endif
sender = ( from == MBEDTLS_SSL_IS_CLIENT )
? "client finished"
: "server finished";
mbedtls_sha512_finish_ret( &sha512, padbuf );
ssl->handshake->tls_prf( session->master, 48, sender,
padbuf, 48, buf, len );
MBEDTLS_SSL_DEBUG_BUF( 3, "calc finished result", buf, len );
mbedtls_sha512_free( &sha512 );
mbedtls_platform_zeroize( padbuf, sizeof( padbuf ) );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= calc finished" ) );
}
#endif /* MBEDTLS_SHA512_C */
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
static void ssl_handshake_wrapup_free_hs_transform( mbedtls_ssl_context *ssl )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "=> handshake wrapup: final free" ) );
/*
* Free our handshake params
*/
mbedtls_ssl_handshake_free( ssl );
mbedtls_free( ssl->handshake );
ssl->handshake = NULL;
/*
* Free the previous transform and swith in the current one
*/
if( ssl->transform )
{
mbedtls_ssl_transform_free( ssl->transform );
mbedtls_free( ssl->transform );
}
ssl->transform = ssl->transform_negotiate;
ssl->transform_negotiate = NULL;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "<= handshake wrapup: final free" ) );
}
void mbedtls_ssl_handshake_wrapup( mbedtls_ssl_context *ssl )
{
int resume = ssl->handshake->resume;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "=> handshake wrapup" ) );
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
{
ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_DONE;
ssl->renego_records_seen = 0;
}
#endif
/*
* Free the previous session and switch in the current one
*/
if( ssl->session )
{
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
/* RFC 7366 3.1: keep the EtM state */
ssl->session_negotiate->encrypt_then_mac =
ssl->session->encrypt_then_mac;
#endif
mbedtls_ssl_session_free( ssl->session );
mbedtls_free( ssl->session );
}
ssl->session = ssl->session_negotiate;
ssl->session_negotiate = NULL;
/*
* Add cache entry
*/
if( ssl->conf->f_set_cache != NULL &&
ssl->session->id_len != 0 &&
resume == 0 )
{
if( ssl->conf->f_set_cache( ssl->conf->p_cache, ssl->session ) != 0 )
MBEDTLS_SSL_DEBUG_MSG( 1, ( "cache did not store session" ) );
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
ssl->handshake->flight != NULL )
{
/* Cancel handshake timer */
ssl_set_timer( ssl, 0 );
/* Keep last flight around in case we need to resend it:
* we need the handshake and transform structures for that */
MBEDTLS_SSL_DEBUG_MSG( 3, ( "skip freeing handshake and transform" ) );
}
else
#endif
ssl_handshake_wrapup_free_hs_transform( ssl );
ssl->state++;
MBEDTLS_SSL_DEBUG_MSG( 3, ( "<= handshake wrapup" ) );
}
int mbedtls_ssl_write_finished( mbedtls_ssl_context *ssl )
{
int ret, hash_len;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write finished" ) );
ssl_update_out_pointers( ssl, ssl->transform_negotiate );
ssl->handshake->calc_finished( ssl, ssl->out_msg + 4, ssl->conf->endpoint );
/*
* RFC 5246 7.4.9 (Page 63) says 12 is the default length and ciphersuites
* may define some other value. Currently (early 2016), no defined
* ciphersuite does this (and this is unlikely to change as activity has
* moved to TLS 1.3 now) so we can keep the hardcoded 12 here.
*/
hash_len = ( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 ) ? 36 : 12;
#if defined(MBEDTLS_SSL_RENEGOTIATION)
ssl->verify_data_len = hash_len;
hash_len = (hash_len < MBEDTLS_SSL_VERIFY_DATA_MAX_LEN)? hash_len : MBEDTLS_SSL_VERIFY_DATA_MAX_LEN;
memcpy( ssl->own_verify_data, ssl->out_msg + 4, hash_len );
#endif
ssl->out_msglen = 4 + hash_len;
ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
ssl->out_msg[0] = MBEDTLS_SSL_HS_FINISHED;
/*
* In case of session resuming, invert the client and server
* ChangeCipherSpec messages order.
*/
if( ssl->handshake->resume != 0 )
{
#if defined(MBEDTLS_SSL_CLI_C)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP;
#endif
#if defined(MBEDTLS_SSL_SRV_C)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
ssl->state = MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC;
#endif
}
else
ssl->state++;
/*
* Switch to our negotiated transform and session parameters for outbound
* data.
*/
MBEDTLS_SSL_DEBUG_MSG( 3, ( "switching to new transform spec for outbound data" ) );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
unsigned char i;
/* Remember current epoch settings for resending */
ssl->handshake->alt_transform_out = ssl->transform_out;
memcpy( ssl->handshake->alt_out_ctr, ssl->cur_out_ctr, 8 );
/* Set sequence_number to zero */
memset( ssl->cur_out_ctr + 2, 0, 6 );
/* Increment epoch */
for( i = 2; i > 0; i-- )
if( ++ssl->cur_out_ctr[i - 1] != 0 )
break;
/* The loop goes to its end iff the counter is wrapping */
if( i == 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "DTLS epoch would wrap" ) );
return( MBEDTLS_ERR_SSL_COUNTER_WRAPPING );
}
}
else
#endif /* MBEDTLS_SSL_PROTO_DTLS */
memset( ssl->cur_out_ctr, 0, 8 );
ssl->transform_out = ssl->transform_negotiate;
ssl->session_out = ssl->session_negotiate;
#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
if( mbedtls_ssl_hw_record_activate != NULL )
{
if( ( ret = mbedtls_ssl_hw_record_activate( ssl, MBEDTLS_SSL_CHANNEL_OUTBOUND ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_activate", ret );
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
}
}
#endif
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
mbedtls_ssl_send_flight_completed( ssl );
#endif
if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
return( ret );
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flight_transmit", ret );
return( ret );
}
#endif
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write finished" ) );
return( 0 );
}
#if defined(MBEDTLS_SSL_PROTO_SSL3)
#define SSL_MAX_HASH_LEN 36
#else
#define SSL_MAX_HASH_LEN 12
#endif
int mbedtls_ssl_parse_finished( mbedtls_ssl_context *ssl )
{
int ret;
unsigned int hash_len;
unsigned char buf[SSL_MAX_HASH_LEN];
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> parse finished" ) );
ssl->handshake->calc_finished( ssl, buf, ssl->conf->endpoint ^ 1 );
if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
return( ret );
}
if( ssl->in_msgtype != MBEDTLS_SSL_MSG_HANDSHAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
/* There is currently no ciphersuite using another length with TLS 1.2 */
#if defined(MBEDTLS_SSL_PROTO_SSL3)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
hash_len = 36;
else
#endif
hash_len = 12;
if( ssl->in_msg[0] != MBEDTLS_SSL_HS_FINISHED ||
ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) + hash_len )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_FINISHED );
}
if( mbedtls_ssl_safer_memcmp( ssl->in_msg + mbedtls_ssl_hs_hdr_len( ssl ),
buf, hash_len ) != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad finished message" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_DECODE_ERROR );
return( MBEDTLS_ERR_SSL_BAD_HS_FINISHED );
}
#if defined(MBEDTLS_SSL_RENEGOTIATION)
ssl->verify_data_len = hash_len;
memcpy( ssl->peer_verify_data, buf, hash_len );
#endif
if( ssl->handshake->resume != 0 )
{
#if defined(MBEDTLS_SSL_CLI_C)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
ssl->state = MBEDTLS_SSL_CLIENT_CHANGE_CIPHER_SPEC;
#endif
#if defined(MBEDTLS_SSL_SRV_C)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
ssl->state = MBEDTLS_SSL_HANDSHAKE_WRAPUP;
#endif
}
else
ssl->state++;
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
mbedtls_ssl_recv_flight_completed( ssl );
#endif
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= parse finished" ) );
return( 0 );
}
static void ssl_handshake_params_init( mbedtls_ssl_handshake_params *handshake )
{
memset( handshake, 0, sizeof( mbedtls_ssl_handshake_params ) );
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1)
mbedtls_md5_init( &handshake->fin_md5 );
mbedtls_sha1_init( &handshake->fin_sha1 );
mbedtls_md5_starts_ret( &handshake->fin_md5 );
mbedtls_sha1_starts_ret( &handshake->fin_sha1 );
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
#if defined(MBEDTLS_SHA256_C)
mbedtls_sha256_init( &handshake->fin_sha256 );
mbedtls_sha256_starts_ret( &handshake->fin_sha256, 0 );
#endif
#if defined(MBEDTLS_SHA512_C)
mbedtls_sha512_init( &handshake->fin_sha512 );
mbedtls_sha512_starts_ret( &handshake->fin_sha512, 1 );
#endif
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
handshake->update_checksum = ssl_update_checksum_start;
#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
mbedtls_ssl_sig_hash_set_init( &handshake->hash_algs );
#endif
#if defined(MBEDTLS_DHM_C)
mbedtls_dhm_init( &handshake->dhm_ctx );
#endif
#if defined(MBEDTLS_ECDH_C)
mbedtls_ecdh_init( &handshake->ecdh_ctx );
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
mbedtls_ecjpake_init( &handshake->ecjpake_ctx );
#if defined(MBEDTLS_SSL_CLI_C)
handshake->ecjpake_cache = NULL;
handshake->ecjpake_cache_len = 0;
#endif
#endif
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
mbedtls_x509_crt_restart_init( &handshake->ecrs_ctx );
#endif
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
handshake->sni_authmode = MBEDTLS_SSL_VERIFY_UNSET;
#endif
}
static void ssl_transform_init( mbedtls_ssl_transform *transform )
{
memset( transform, 0, sizeof(mbedtls_ssl_transform) );
mbedtls_cipher_init( &transform->cipher_ctx_enc );
mbedtls_cipher_init( &transform->cipher_ctx_dec );
mbedtls_md_init( &transform->md_ctx_enc );
mbedtls_md_init( &transform->md_ctx_dec );
}
void mbedtls_ssl_session_init( mbedtls_ssl_session *session )
{
memset( session, 0, sizeof(mbedtls_ssl_session) );
}
static int ssl_handshake_init( mbedtls_ssl_context *ssl )
{
/* Clear old handshake information if present */
if( ssl->transform_negotiate )
mbedtls_ssl_transform_free( ssl->transform_negotiate );
if( ssl->session_negotiate )
mbedtls_ssl_session_free( ssl->session_negotiate );
if( ssl->handshake )
mbedtls_ssl_handshake_free( ssl );
/*
* Either the pointers are now NULL or cleared properly and can be freed.
* Now allocate missing structures.
*/
if( ssl->transform_negotiate == NULL )
{
ssl->transform_negotiate = mbedtls_calloc( 1, sizeof(mbedtls_ssl_transform) );
}
if( ssl->session_negotiate == NULL )
{
ssl->session_negotiate = mbedtls_calloc( 1, sizeof(mbedtls_ssl_session) );
}
if( ssl->handshake == NULL )
{
ssl->handshake = mbedtls_calloc( 1, sizeof(mbedtls_ssl_handshake_params) );
}
/* All pointers should exist and can be directly freed without issue */
if( ssl->handshake == NULL ||
ssl->transform_negotiate == NULL ||
ssl->session_negotiate == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc() of ssl sub-contexts failed" ) );
mbedtls_free( ssl->handshake );
mbedtls_free( ssl->transform_negotiate );
mbedtls_free( ssl->session_negotiate );
ssl->handshake = NULL;
ssl->transform_negotiate = NULL;
ssl->session_negotiate = NULL;
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
}
/* Initialize structures */
mbedtls_ssl_session_init( ssl->session_negotiate );
ssl_transform_init( ssl->transform_negotiate );
ssl_handshake_params_init( ssl->handshake );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
ssl->handshake->alt_transform_out = ssl->transform_out;
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_PREPARING;
else
ssl->handshake->retransmit_state = MBEDTLS_SSL_RETRANS_WAITING;
ssl_set_timer( ssl, 0 );
}
#endif
return( 0 );
}
#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
/* Dummy cookie callbacks for defaults */
static int ssl_cookie_write_dummy( void *ctx,
unsigned char **p, unsigned char *end,
const unsigned char *cli_id, size_t cli_id_len )
{
((void) ctx);
((void) p);
((void) end);
((void) cli_id);
((void) cli_id_len);
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
static int ssl_cookie_check_dummy( void *ctx,
const unsigned char *cookie, size_t cookie_len,
const unsigned char *cli_id, size_t cli_id_len )
{
((void) ctx);
((void) cookie);
((void) cookie_len);
((void) cli_id);
((void) cli_id_len);
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY && MBEDTLS_SSL_SRV_C */
/* Once ssl->out_hdr as the address of the beginning of the
* next outgoing record is set, deduce the other pointers.
*
* Note: For TLS, we save the implicit record sequence number
* (entering MAC computation) in the 8 bytes before ssl->out_hdr,
* and the caller has to make sure there's space for this.
*/
static void ssl_update_out_pointers( mbedtls_ssl_context *ssl,
mbedtls_ssl_transform *transform )
{
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
ssl->out_ctr = ssl->out_hdr + 3;
ssl->out_len = ssl->out_hdr + 11;
ssl->out_iv = ssl->out_hdr + 13;
}
else
#endif
{
ssl->out_ctr = ssl->out_hdr - 8;
ssl->out_len = ssl->out_hdr + 3;
ssl->out_iv = ssl->out_hdr + 5;
}
/* Adjust out_msg to make space for explicit IV, if used. */
if( transform != NULL &&
ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 )
{
ssl->out_msg = ssl->out_iv + transform->ivlen - transform->fixed_ivlen;
}
else
ssl->out_msg = ssl->out_iv;
}
/* Once ssl->in_hdr as the address of the beginning of the
* next incoming record is set, deduce the other pointers.
*
* Note: For TLS, we save the implicit record sequence number
* (entering MAC computation) in the 8 bytes before ssl->in_hdr,
* and the caller has to make sure there's space for this.
*/
static void ssl_update_in_pointers( mbedtls_ssl_context *ssl,
mbedtls_ssl_transform *transform )
{
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
ssl->in_ctr = ssl->in_hdr + 3;
ssl->in_len = ssl->in_hdr + 11;
ssl->in_iv = ssl->in_hdr + 13;
}
else
#endif
{
ssl->in_ctr = ssl->in_hdr - 8;
ssl->in_len = ssl->in_hdr + 3;
ssl->in_iv = ssl->in_hdr + 5;
}
/* Offset in_msg from in_iv to allow space for explicit IV, if used. */
if( transform != NULL &&
ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 )
{
ssl->in_msg = ssl->in_iv + transform->ivlen - transform->fixed_ivlen;
}
else
ssl->in_msg = ssl->in_iv;
}
/*
* Initialize an SSL context
*/
void mbedtls_ssl_init( mbedtls_ssl_context *ssl )
{
memset( ssl, 0, sizeof( mbedtls_ssl_context ) );
}
/*
* Setup an SSL context
*/
static void ssl_reset_in_out_pointers( mbedtls_ssl_context *ssl )
{
/* Set the incoming and outgoing record pointers. */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
ssl->out_hdr = ssl->out_buf;
ssl->in_hdr = ssl->in_buf;
}
else
#endif /* MBEDTLS_SSL_PROTO_DTLS */
{
ssl->out_hdr = ssl->out_buf + 8;
ssl->in_hdr = ssl->in_buf + 8;
}
/* Derive other internal pointers. */
ssl_update_out_pointers( ssl, NULL /* no transform enabled */ );
ssl_update_in_pointers ( ssl, NULL /* no transform enabled */ );
}
int mbedtls_ssl_setup( mbedtls_ssl_context *ssl,
const mbedtls_ssl_config *conf )
{
int ret;
ssl->conf = conf;
/*
* Prepare base structures
*/
/* Set to NULL in case of an error condition */
ssl->out_buf = NULL;
ssl->in_buf = mbedtls_calloc( 1, MBEDTLS_SSL_IN_BUFFER_LEN );
if( ssl->in_buf == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", MBEDTLS_SSL_IN_BUFFER_LEN) );
ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
goto error;
}
ssl->out_buf = mbedtls_calloc( 1, MBEDTLS_SSL_OUT_BUFFER_LEN );
if( ssl->out_buf == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "alloc(%d bytes) failed", MBEDTLS_SSL_OUT_BUFFER_LEN) );
ret = MBEDTLS_ERR_SSL_ALLOC_FAILED;
goto error;
}
ssl_reset_in_out_pointers( ssl );
if( ( ret = ssl_handshake_init( ssl ) ) != 0 )
goto error;
return( 0 );
error:
mbedtls_free( ssl->in_buf );
mbedtls_free( ssl->out_buf );
ssl->conf = NULL;
ssl->in_buf = NULL;
ssl->out_buf = NULL;
ssl->in_hdr = NULL;
ssl->in_ctr = NULL;
ssl->in_len = NULL;
ssl->in_iv = NULL;
ssl->in_msg = NULL;
ssl->out_hdr = NULL;
ssl->out_ctr = NULL;
ssl->out_len = NULL;
ssl->out_iv = NULL;
ssl->out_msg = NULL;
return( ret );
}
/*
* Reset an initialized and used SSL context for re-use while retaining
* all application-set variables, function pointers and data.
*
* If partial is non-zero, keep data in the input buffer and client ID.
* (Use when a DTLS client reconnects from the same port.)
*/
static int ssl_session_reset_int( mbedtls_ssl_context *ssl, int partial )
{
int ret;
#if !defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) || \
!defined(MBEDTLS_SSL_SRV_C)
((void) partial);
#endif
ssl->state = MBEDTLS_SSL_HELLO_REQUEST;
/* Cancel any possibly running timer */
ssl_set_timer( ssl, 0 );
#if defined(MBEDTLS_SSL_RENEGOTIATION)
ssl->renego_status = MBEDTLS_SSL_INITIAL_HANDSHAKE;
ssl->renego_records_seen = 0;
ssl->verify_data_len = 0;
memset( ssl->own_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN );
memset( ssl->peer_verify_data, 0, MBEDTLS_SSL_VERIFY_DATA_MAX_LEN );
#endif
ssl->secure_renegotiation = MBEDTLS_SSL_LEGACY_RENEGOTIATION;
ssl->in_offt = NULL;
ssl_reset_in_out_pointers( ssl );
ssl->in_msgtype = 0;
ssl->in_msglen = 0;
#if defined(MBEDTLS_SSL_PROTO_DTLS)
ssl->next_record_offset = 0;
ssl->in_epoch = 0;
#endif
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
ssl_dtls_replay_reset( ssl );
#endif
ssl->in_hslen = 0;
ssl->nb_zero = 0;
ssl->keep_current_message = 0;
ssl->out_msgtype = 0;
ssl->out_msglen = 0;
ssl->out_left = 0;
#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
if( ssl->split_done != MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED )
ssl->split_done = 0;
#endif
memset( ssl->cur_out_ctr, 0, sizeof( ssl->cur_out_ctr ) );
ssl->transform_in = NULL;
ssl->transform_out = NULL;
ssl->session_in = NULL;
ssl->session_out = NULL;
memset( ssl->out_buf, 0, MBEDTLS_SSL_OUT_BUFFER_LEN );
#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE) && defined(MBEDTLS_SSL_SRV_C)
if( partial == 0 )
#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE && MBEDTLS_SSL_SRV_C */
{
ssl->in_left = 0;
memset( ssl->in_buf, 0, MBEDTLS_SSL_IN_BUFFER_LEN );
}
#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
if( mbedtls_ssl_hw_record_reset != NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_reset()" ) );
if( ( ret = mbedtls_ssl_hw_record_reset( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_hw_record_reset", ret );
return( MBEDTLS_ERR_SSL_HW_ACCEL_FAILED );
}
}
#endif
if( ssl->transform )
{
mbedtls_ssl_transform_free( ssl->transform );
mbedtls_free( ssl->transform );
ssl->transform = NULL;
}
if( ssl->session )
{
mbedtls_ssl_session_free( ssl->session );
mbedtls_free( ssl->session );
ssl->session = NULL;
}
#if defined(MBEDTLS_SSL_ALPN)
ssl->alpn_chosen = NULL;
#endif
#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE)
if( partial == 0 )
#endif
{
mbedtls_free( ssl->cli_id );
ssl->cli_id = NULL;
ssl->cli_id_len = 0;
}
#endif
if( ( ret = ssl_handshake_init( ssl ) ) != 0 )
return( ret );
return( 0 );
}
/*
* Reset an initialized and used SSL context for re-use while retaining
* all application-set variables, function pointers and data.
*/
int mbedtls_ssl_session_reset( mbedtls_ssl_context *ssl )
{
return( ssl_session_reset_int( ssl, 0 ) );
}
/*
* SSL set accessors
*/
void mbedtls_ssl_conf_endpoint( mbedtls_ssl_config *conf, int endpoint )
{
conf->endpoint = endpoint;
}
void mbedtls_ssl_conf_transport( mbedtls_ssl_config *conf, int transport )
{
conf->transport = transport;
}
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
void mbedtls_ssl_conf_dtls_anti_replay( mbedtls_ssl_config *conf, char mode )
{
conf->anti_replay = mode;
}
#endif
#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
void mbedtls_ssl_conf_dtls_badmac_limit( mbedtls_ssl_config *conf, unsigned limit )
{
conf->badmac_limit = limit;
}
#endif
#if defined(MBEDTLS_SSL_PROTO_DTLS)
void mbedtls_ssl_set_datagram_packing( mbedtls_ssl_context *ssl,
unsigned allow_packing )
{
ssl->disable_datagram_packing = !allow_packing;
}
void mbedtls_ssl_conf_handshake_timeout( mbedtls_ssl_config *conf,
uint32_t min, uint32_t max )
{
conf->hs_timeout_min = min;
conf->hs_timeout_max = max;
}
#endif
void mbedtls_ssl_conf_authmode( mbedtls_ssl_config *conf, int authmode )
{
conf->authmode = authmode;
}
#if defined(MBEDTLS_X509_CRT_PARSE_C)
void mbedtls_ssl_conf_verify( mbedtls_ssl_config *conf,
int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
void *p_vrfy )
{
conf->f_vrfy = f_vrfy;
conf->p_vrfy = p_vrfy;
}
#endif /* MBEDTLS_X509_CRT_PARSE_C */
void mbedtls_ssl_conf_rng( mbedtls_ssl_config *conf,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
conf->f_rng = f_rng;
conf->p_rng = p_rng;
}
void mbedtls_ssl_conf_dbg( mbedtls_ssl_config *conf,
void (*f_dbg)(void *, int, const char *, int, const char *),
void *p_dbg )
{
conf->f_dbg = f_dbg;
conf->p_dbg = p_dbg;
}
void mbedtls_ssl_set_bio( mbedtls_ssl_context *ssl,
void *p_bio,
mbedtls_ssl_send_t *f_send,
mbedtls_ssl_recv_t *f_recv,
mbedtls_ssl_recv_timeout_t *f_recv_timeout )
{
ssl->p_bio = p_bio;
ssl->f_send = f_send;
ssl->f_recv = f_recv;
ssl->f_recv_timeout = f_recv_timeout;
}
#if defined(MBEDTLS_SSL_PROTO_DTLS)
void mbedtls_ssl_set_mtu( mbedtls_ssl_context *ssl, uint16_t mtu )
{
ssl->mtu = mtu;
}
#endif
void mbedtls_ssl_conf_read_timeout( mbedtls_ssl_config *conf, uint32_t timeout )
{
conf->read_timeout = timeout;
}
void mbedtls_ssl_set_timer_cb( mbedtls_ssl_context *ssl,
void *p_timer,
mbedtls_ssl_set_timer_t *f_set_timer,
mbedtls_ssl_get_timer_t *f_get_timer )
{
ssl->p_timer = p_timer;
ssl->f_set_timer = f_set_timer;
ssl->f_get_timer = f_get_timer;
/* Make sure we start with no timer running */
ssl_set_timer( ssl, 0 );
}
#if defined(MBEDTLS_SSL_SRV_C)
void mbedtls_ssl_conf_session_cache( mbedtls_ssl_config *conf,
void *p_cache,
int (*f_get_cache)(void *, mbedtls_ssl_session *),
int (*f_set_cache)(void *, const mbedtls_ssl_session *) )
{
conf->p_cache = p_cache;
conf->f_get_cache = f_get_cache;
conf->f_set_cache = f_set_cache;
}
#endif /* MBEDTLS_SSL_SRV_C */
#if defined(MBEDTLS_SSL_CLI_C)
int mbedtls_ssl_set_session( mbedtls_ssl_context *ssl, const mbedtls_ssl_session *session )
{
int ret;
if( ssl == NULL ||
session == NULL ||
ssl->session_negotiate == NULL ||
ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT )
{
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
if( ( ret = ssl_session_copy( ssl->session_negotiate, session ) ) != 0 )
return( ret );
ssl->handshake->resume = 1;
return( 0 );
}
#endif /* MBEDTLS_SSL_CLI_C */
void mbedtls_ssl_conf_ciphersuites( mbedtls_ssl_config *conf,
const int *ciphersuites )
{
conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] = ciphersuites;
conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] = ciphersuites;
conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] = ciphersuites;
conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] = ciphersuites;
}
void mbedtls_ssl_conf_ciphersuites_for_version( mbedtls_ssl_config *conf,
const int *ciphersuites,
int major, int minor )
{
if( major != MBEDTLS_SSL_MAJOR_VERSION_3 )
return;
if( minor < MBEDTLS_SSL_MINOR_VERSION_0 || minor > MBEDTLS_SSL_MINOR_VERSION_3 )
return;
conf->ciphersuite_list[minor] = ciphersuites;
}
#if defined(MBEDTLS_X509_CRT_PARSE_C)
void mbedtls_ssl_conf_cert_profile( mbedtls_ssl_config *conf,
const mbedtls_x509_crt_profile *profile )
{
conf->cert_profile = profile;
}
/* Append a new keycert entry to a (possibly empty) list */
static int ssl_append_key_cert( mbedtls_ssl_key_cert **head,
mbedtls_x509_crt *cert,
mbedtls_pk_context *key )
{
mbedtls_ssl_key_cert *new_cert;
new_cert = mbedtls_calloc( 1, sizeof( mbedtls_ssl_key_cert ) );
if( new_cert == NULL )
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
new_cert->cert = cert;
new_cert->key = key;
new_cert->next = NULL;
/* Update head is the list was null, else add to the end */
if( *head == NULL )
{
*head = new_cert;
}
else
{
mbedtls_ssl_key_cert *cur = *head;
while( cur->next != NULL )
cur = cur->next;
cur->next = new_cert;
}
return( 0 );
}
int mbedtls_ssl_conf_own_cert( mbedtls_ssl_config *conf,
mbedtls_x509_crt *own_cert,
mbedtls_pk_context *pk_key )
{
return( ssl_append_key_cert( &conf->key_cert, own_cert, pk_key ) );
}
void mbedtls_ssl_conf_ca_chain( mbedtls_ssl_config *conf,
mbedtls_x509_crt *ca_chain,
mbedtls_x509_crl *ca_crl )
{
conf->ca_chain = ca_chain;
conf->ca_crl = ca_crl;
}
#endif /* MBEDTLS_X509_CRT_PARSE_C */
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
int mbedtls_ssl_set_hs_own_cert( mbedtls_ssl_context *ssl,
mbedtls_x509_crt *own_cert,
mbedtls_pk_context *pk_key )
{
return( ssl_append_key_cert( &ssl->handshake->sni_key_cert,
own_cert, pk_key ) );
}
void mbedtls_ssl_set_hs_ca_chain( mbedtls_ssl_context *ssl,
mbedtls_x509_crt *ca_chain,
mbedtls_x509_crl *ca_crl )
{
ssl->handshake->sni_ca_chain = ca_chain;
ssl->handshake->sni_ca_crl = ca_crl;
}
void mbedtls_ssl_set_hs_authmode( mbedtls_ssl_context *ssl,
int authmode )
{
ssl->handshake->sni_authmode = authmode;
}
#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
/*
* Set EC J-PAKE password for current handshake
*/
int mbedtls_ssl_set_hs_ecjpake_password( mbedtls_ssl_context *ssl,
const unsigned char *pw,
size_t pw_len )
{
mbedtls_ecjpake_role role;
if( ssl->handshake == NULL || ssl->conf == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
role = MBEDTLS_ECJPAKE_SERVER;
else
role = MBEDTLS_ECJPAKE_CLIENT;
return( mbedtls_ecjpake_setup( &ssl->handshake->ecjpake_ctx,
role,
MBEDTLS_MD_SHA256,
MBEDTLS_ECP_DP_SECP256R1,
pw, pw_len ) );
}
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
int mbedtls_ssl_conf_psk( mbedtls_ssl_config *conf,
const unsigned char *psk, size_t psk_len,
const unsigned char *psk_identity, size_t psk_identity_len )
{
if( psk == NULL || psk_identity == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
if( psk_len > MBEDTLS_PSK_MAX_LEN )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
/* Identity len will be encoded on two bytes */
if( ( psk_identity_len >> 16 ) != 0 ||
psk_identity_len > MBEDTLS_SSL_OUT_CONTENT_LEN )
{
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
if( conf->psk != NULL )
{
mbedtls_platform_zeroize( conf->psk, conf->psk_len );
mbedtls_free( conf->psk );
conf->psk = NULL;
conf->psk_len = 0;
}
if( conf->psk_identity != NULL )
{
mbedtls_free( conf->psk_identity );
conf->psk_identity = NULL;
conf->psk_identity_len = 0;
}
if( ( conf->psk = mbedtls_calloc( 1, psk_len ) ) == NULL ||
( conf->psk_identity = mbedtls_calloc( 1, psk_identity_len ) ) == NULL )
{
mbedtls_free( conf->psk );
mbedtls_free( conf->psk_identity );
conf->psk = NULL;
conf->psk_identity = NULL;
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
}
conf->psk_len = psk_len;
conf->psk_identity_len = psk_identity_len;
memcpy( conf->psk, psk, conf->psk_len );
memcpy( conf->psk_identity, psk_identity, conf->psk_identity_len );
return( 0 );
}
int mbedtls_ssl_set_hs_psk( mbedtls_ssl_context *ssl,
const unsigned char *psk, size_t psk_len )
{
if( psk == NULL || ssl->handshake == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
if( psk_len > MBEDTLS_PSK_MAX_LEN )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
if( ssl->handshake->psk != NULL )
{
mbedtls_platform_zeroize( ssl->handshake->psk,
ssl->handshake->psk_len );
mbedtls_free( ssl->handshake->psk );
ssl->handshake->psk_len = 0;
}
if( ( ssl->handshake->psk = mbedtls_calloc( 1, psk_len ) ) == NULL )
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
ssl->handshake->psk_len = psk_len;
memcpy( ssl->handshake->psk, psk, ssl->handshake->psk_len );
return( 0 );
}
void mbedtls_ssl_conf_psk_cb( mbedtls_ssl_config *conf,
int (*f_psk)(void *, mbedtls_ssl_context *, const unsigned char *,
size_t),
void *p_psk )
{
conf->f_psk = f_psk;
conf->p_psk = p_psk;
}
#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED */
#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C)
#if !defined(MBEDTLS_DEPRECATED_REMOVED)
int mbedtls_ssl_conf_dh_param( mbedtls_ssl_config *conf, const char *dhm_P, const char *dhm_G )
{
int ret;
if( ( ret = mbedtls_mpi_read_string( &conf->dhm_P, 16, dhm_P ) ) != 0 ||
( ret = mbedtls_mpi_read_string( &conf->dhm_G, 16, dhm_G ) ) != 0 )
{
mbedtls_mpi_free( &conf->dhm_P );
mbedtls_mpi_free( &conf->dhm_G );
return( ret );
}
return( 0 );
}
#endif /* MBEDTLS_DEPRECATED_REMOVED */
int mbedtls_ssl_conf_dh_param_bin( mbedtls_ssl_config *conf,
const unsigned char *dhm_P, size_t P_len,
const unsigned char *dhm_G, size_t G_len )
{
int ret;
if( ( ret = mbedtls_mpi_read_binary( &conf->dhm_P, dhm_P, P_len ) ) != 0 ||
( ret = mbedtls_mpi_read_binary( &conf->dhm_G, dhm_G, G_len ) ) != 0 )
{
mbedtls_mpi_free( &conf->dhm_P );
mbedtls_mpi_free( &conf->dhm_G );
return( ret );
}
return( 0 );
}
int mbedtls_ssl_conf_dh_param_ctx( mbedtls_ssl_config *conf, mbedtls_dhm_context *dhm_ctx )
{
int ret;
if( ( ret = mbedtls_mpi_copy( &conf->dhm_P, &dhm_ctx->P ) ) != 0 ||
( ret = mbedtls_mpi_copy( &conf->dhm_G, &dhm_ctx->G ) ) != 0 )
{
mbedtls_mpi_free( &conf->dhm_P );
mbedtls_mpi_free( &conf->dhm_G );
return( ret );
}
return( 0 );
}
#endif /* MBEDTLS_DHM_C && MBEDTLS_SSL_SRV_C */
#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C)
/*
* Set the minimum length for Diffie-Hellman parameters
*/
void mbedtls_ssl_conf_dhm_min_bitlen( mbedtls_ssl_config *conf,
unsigned int bitlen )
{
conf->dhm_min_bitlen = bitlen;
}
#endif /* MBEDTLS_DHM_C && MBEDTLS_SSL_CLI_C */
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
/*
* Set allowed/preferred hashes for handshake signatures
*/
void mbedtls_ssl_conf_sig_hashes( mbedtls_ssl_config *conf,
const int *hashes )
{
conf->sig_hashes = hashes;
}
#endif /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
#if defined(MBEDTLS_ECP_C)
/*
* Set the allowed elliptic curves
*/
void mbedtls_ssl_conf_curves( mbedtls_ssl_config *conf,
const mbedtls_ecp_group_id *curve_list )
{
conf->curve_list = curve_list;
}
#endif /* MBEDTLS_ECP_C */
#if defined(MBEDTLS_X509_CRT_PARSE_C)
int mbedtls_ssl_set_hostname( mbedtls_ssl_context *ssl, const char *hostname )
{
/* Initialize to suppress unnecessary compiler warning */
size_t hostname_len = 0;
/* Check if new hostname is valid before
* making any change to current one */
if( hostname != NULL )
{
hostname_len = strlen( hostname );
if( hostname_len > MBEDTLS_SSL_MAX_HOST_NAME_LEN )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
/* Now it's clear that we will overwrite the old hostname,
* so we can free it safely */
if( ssl->hostname != NULL )
{
mbedtls_platform_zeroize( ssl->hostname, strlen( ssl->hostname ) );
mbedtls_free( ssl->hostname );
}
/* Passing NULL as hostname shall clear the old one */
if( hostname == NULL )
{
ssl->hostname = NULL;
}
else
{
ssl->hostname = mbedtls_calloc( 1, hostname_len + 1 );
if( ssl->hostname == NULL )
return( MBEDTLS_ERR_SSL_ALLOC_FAILED );
memcpy( ssl->hostname, hostname, hostname_len );
ssl->hostname[hostname_len] = '\0';
}
return( 0 );
}
#endif /* MBEDTLS_X509_CRT_PARSE_C */
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
void mbedtls_ssl_conf_sni( mbedtls_ssl_config *conf,
int (*f_sni)(void *, mbedtls_ssl_context *,
const unsigned char *, size_t),
void *p_sni )
{
conf->f_sni = f_sni;
conf->p_sni = p_sni;
}
#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
#if defined(MBEDTLS_SSL_ALPN)
int mbedtls_ssl_conf_alpn_protocols( mbedtls_ssl_config *conf, const char **protos )
{
size_t cur_len, tot_len;
const char **p;
/*
* RFC 7301 3.1: "Empty strings MUST NOT be included and byte strings
* MUST NOT be truncated."
* We check lengths now rather than later.
*/
tot_len = 0;
for( p = protos; *p != NULL; p++ )
{
cur_len = strlen( *p );
tot_len += cur_len;
if( cur_len == 0 || cur_len > 255 || tot_len > 65535 )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
conf->alpn_list = protos;
return( 0 );
}
const char *mbedtls_ssl_get_alpn_protocol( const mbedtls_ssl_context *ssl )
{
return( ssl->alpn_chosen );
}
#endif /* MBEDTLS_SSL_ALPN */
void mbedtls_ssl_conf_max_version( mbedtls_ssl_config *conf, int major, int minor )
{
conf->max_major_ver = major;
conf->max_minor_ver = minor;
}
void mbedtls_ssl_conf_min_version( mbedtls_ssl_config *conf, int major, int minor )
{
conf->min_major_ver = major;
conf->min_minor_ver = minor;
}
#if defined(MBEDTLS_SSL_FALLBACK_SCSV) && defined(MBEDTLS_SSL_CLI_C)
void mbedtls_ssl_conf_fallback( mbedtls_ssl_config *conf, char fallback )
{
conf->fallback = fallback;
}
#endif
#if defined(MBEDTLS_SSL_SRV_C)
void mbedtls_ssl_conf_cert_req_ca_list( mbedtls_ssl_config *conf,
char cert_req_ca_list )
{
conf->cert_req_ca_list = cert_req_ca_list;
}
#endif
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
void mbedtls_ssl_conf_encrypt_then_mac( mbedtls_ssl_config *conf, char etm )
{
conf->encrypt_then_mac = etm;
}
#endif
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
void mbedtls_ssl_conf_extended_master_secret( mbedtls_ssl_config *conf, char ems )
{
conf->extended_ms = ems;
}
#endif
#if defined(MBEDTLS_ARC4_C)
void mbedtls_ssl_conf_arc4_support( mbedtls_ssl_config *conf, char arc4 )
{
conf->arc4_disabled = arc4;
}
#endif
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
int mbedtls_ssl_conf_max_frag_len( mbedtls_ssl_config *conf, unsigned char mfl_code )
{
if( mfl_code >= MBEDTLS_SSL_MAX_FRAG_LEN_INVALID ||
ssl_mfl_code_to_length( mfl_code ) > MBEDTLS_TLS_EXT_ADV_CONTENT_LEN )
{
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
conf->mfl_code = mfl_code;
return( 0 );
}
#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
void mbedtls_ssl_conf_truncated_hmac( mbedtls_ssl_config *conf, int truncate )
{
conf->trunc_hmac = truncate;
}
#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
void mbedtls_ssl_conf_cbc_record_splitting( mbedtls_ssl_config *conf, char split )
{
conf->cbc_record_splitting = split;
}
#endif
void mbedtls_ssl_conf_legacy_renegotiation( mbedtls_ssl_config *conf, int allow_legacy )
{
conf->allow_legacy_renegotiation = allow_legacy;
}
#if defined(MBEDTLS_SSL_RENEGOTIATION)
void mbedtls_ssl_conf_renegotiation( mbedtls_ssl_config *conf, int renegotiation )
{
conf->disable_renegotiation = renegotiation;
}
void mbedtls_ssl_conf_renegotiation_enforced( mbedtls_ssl_config *conf, int max_records )
{
conf->renego_max_records = max_records;
}
void mbedtls_ssl_conf_renegotiation_period( mbedtls_ssl_config *conf,
const unsigned char period[8] )
{
memcpy( conf->renego_period, period, 8 );
}
#endif /* MBEDTLS_SSL_RENEGOTIATION */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
#if defined(MBEDTLS_SSL_CLI_C)
void mbedtls_ssl_conf_session_tickets( mbedtls_ssl_config *conf, int use_tickets )
{
conf->session_tickets = use_tickets;
}
#endif
#if defined(MBEDTLS_SSL_SRV_C)
void mbedtls_ssl_conf_session_tickets_cb( mbedtls_ssl_config *conf,
mbedtls_ssl_ticket_write_t *f_ticket_write,
mbedtls_ssl_ticket_parse_t *f_ticket_parse,
void *p_ticket )
{
conf->f_ticket_write = f_ticket_write;
conf->f_ticket_parse = f_ticket_parse;
conf->p_ticket = p_ticket;
}
#endif
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
#if defined(MBEDTLS_SSL_EXPORT_KEYS)
void mbedtls_ssl_conf_export_keys_cb( mbedtls_ssl_config *conf,
mbedtls_ssl_export_keys_t *f_export_keys,
void *p_export_keys )
{
conf->f_export_keys = f_export_keys;
conf->p_export_keys = p_export_keys;
}
#endif
#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
void mbedtls_ssl_conf_async_private_cb(
mbedtls_ssl_config *conf,
mbedtls_ssl_async_sign_t *f_async_sign,
mbedtls_ssl_async_decrypt_t *f_async_decrypt,
mbedtls_ssl_async_resume_t *f_async_resume,
mbedtls_ssl_async_cancel_t *f_async_cancel,
void *async_config_data )
{
conf->f_async_sign_start = f_async_sign;
conf->f_async_decrypt_start = f_async_decrypt;
conf->f_async_resume = f_async_resume;
conf->f_async_cancel = f_async_cancel;
conf->p_async_config_data = async_config_data;
}
void *mbedtls_ssl_conf_get_async_config_data( const mbedtls_ssl_config *conf )
{
return( conf->p_async_config_data );
}
void *mbedtls_ssl_get_async_operation_data( const mbedtls_ssl_context *ssl )
{
if( ssl->handshake == NULL )
return( NULL );
else
return( ssl->handshake->user_async_ctx );
}
void mbedtls_ssl_set_async_operation_data( mbedtls_ssl_context *ssl,
void *ctx )
{
if( ssl->handshake != NULL )
ssl->handshake->user_async_ctx = ctx;
}
#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
/*
* SSL get accessors
*/
size_t mbedtls_ssl_get_bytes_avail( const mbedtls_ssl_context *ssl )
{
return( ssl->in_offt == NULL ? 0 : ssl->in_msglen );
}
int mbedtls_ssl_check_pending( const mbedtls_ssl_context *ssl )
{
/*
* Case A: We're currently holding back
* a message for further processing.
*/
if( ssl->keep_current_message == 1 )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: record held back for processing" ) );
return( 1 );
}
/*
* Case B: Further records are pending in the current datagram.
*/
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
ssl->in_left > ssl->next_record_offset )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: more records within current datagram" ) );
return( 1 );
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
/*
* Case C: A handshake message is being processed.
*/
if( ssl->in_hslen > 0 && ssl->in_hslen < ssl->in_msglen )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: more handshake messages within current record" ) );
return( 1 );
}
/*
* Case D: An application data message is being processed
*/
if( ssl->in_offt != NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: application data record is being processed" ) );
return( 1 );
}
/*
* In all other cases, the rest of the message can be dropped.
* As in ssl_get_next_record, this needs to be adapted if
* we implement support for multiple alerts in single records.
*/
MBEDTLS_SSL_DEBUG_MSG( 3, ( "ssl_check_pending: nothing pending" ) );
return( 0 );
}
uint32_t mbedtls_ssl_get_verify_result( const mbedtls_ssl_context *ssl )
{
if( ssl->session != NULL )
return( ssl->session->verify_result );
if( ssl->session_negotiate != NULL )
return( ssl->session_negotiate->verify_result );
return( 0xFFFFFFFF );
}
const char *mbedtls_ssl_get_ciphersuite( const mbedtls_ssl_context *ssl )
{
if( ssl == NULL || ssl->session == NULL )
return( NULL );
return mbedtls_ssl_get_ciphersuite_name( ssl->session->ciphersuite );
}
const char *mbedtls_ssl_get_version( const mbedtls_ssl_context *ssl )
{
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
switch( ssl->minor_ver )
{
case MBEDTLS_SSL_MINOR_VERSION_2:
return( "DTLSv1.0" );
case MBEDTLS_SSL_MINOR_VERSION_3:
return( "DTLSv1.2" );
default:
return( "unknown (DTLS)" );
}
}
#endif
switch( ssl->minor_ver )
{
case MBEDTLS_SSL_MINOR_VERSION_0:
return( "SSLv3.0" );
case MBEDTLS_SSL_MINOR_VERSION_1:
return( "TLSv1.0" );
case MBEDTLS_SSL_MINOR_VERSION_2:
return( "TLSv1.1" );
case MBEDTLS_SSL_MINOR_VERSION_3:
return( "TLSv1.2" );
default:
return( "unknown" );
}
}
int mbedtls_ssl_get_record_expansion( const mbedtls_ssl_context *ssl )
{
size_t transform_expansion = 0;
const mbedtls_ssl_transform *transform = ssl->transform_out;
unsigned block_size;
if( transform == NULL )
return( (int) mbedtls_ssl_hdr_len( ssl ) );
#if defined(MBEDTLS_ZLIB_SUPPORT)
if( ssl->session_out->compression != MBEDTLS_SSL_COMPRESS_NULL )
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
#endif
switch( mbedtls_cipher_get_cipher_mode( &transform->cipher_ctx_enc ) )
{
case MBEDTLS_MODE_GCM:
case MBEDTLS_MODE_CCM:
case MBEDTLS_MODE_CHACHAPOLY:
case MBEDTLS_MODE_STREAM:
transform_expansion = transform->minlen;
break;
case MBEDTLS_MODE_CBC:
block_size = mbedtls_cipher_get_block_size(
&transform->cipher_ctx_enc );
/* Expansion due to the addition of the MAC. */
transform_expansion += transform->maclen;
/* Expansion due to the addition of CBC padding;
* Theoretically up to 256 bytes, but we never use
* more than the block size of the underlying cipher. */
transform_expansion += block_size;
/* For TLS 1.1 or higher, an explicit IV is added
* after the record header. */
#if defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_2 )
transform_expansion += block_size;
#endif /* MBEDTLS_SSL_PROTO_TLS1_1 || MBEDTLS_SSL_PROTO_TLS1_2 */
break;
default:
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
return( (int)( mbedtls_ssl_hdr_len( ssl ) + transform_expansion ) );
}
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
size_t mbedtls_ssl_get_max_frag_len( const mbedtls_ssl_context *ssl )
{
size_t max_len;
/*
* Assume mfl_code is correct since it was checked when set
*/
max_len = ssl_mfl_code_to_length( ssl->conf->mfl_code );
/* Check if a smaller max length was negotiated */
if( ssl->session_out != NULL &&
ssl_mfl_code_to_length( ssl->session_out->mfl_code ) < max_len )
{
max_len = ssl_mfl_code_to_length( ssl->session_out->mfl_code );
}
/* During a handshake, use the value being negotiated */
if( ssl->session_negotiate != NULL &&
ssl_mfl_code_to_length( ssl->session_negotiate->mfl_code ) < max_len )
{
max_len = ssl_mfl_code_to_length( ssl->session_negotiate->mfl_code );
}
return( max_len );
}
#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
static size_t ssl_get_current_mtu( const mbedtls_ssl_context *ssl )
{
/* Return unlimited mtu for client hello messages to avoid fragmentation. */
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT &&
( ssl->state == MBEDTLS_SSL_CLIENT_HELLO ||
ssl->state == MBEDTLS_SSL_SERVER_HELLO ) )
return ( 0 );
if( ssl->handshake == NULL || ssl->handshake->mtu == 0 )
return( ssl->mtu );
if( ssl->mtu == 0 )
return( ssl->handshake->mtu );
return( ssl->mtu < ssl->handshake->mtu ?
ssl->mtu : ssl->handshake->mtu );
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
int mbedtls_ssl_get_max_out_record_payload( const mbedtls_ssl_context *ssl )
{
size_t max_len = MBEDTLS_SSL_OUT_CONTENT_LEN;
#if !defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) && \
!defined(MBEDTLS_SSL_PROTO_DTLS)
(void) ssl;
#endif
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
const size_t mfl = mbedtls_ssl_get_max_frag_len( ssl );
if( max_len > mfl )
max_len = mfl;
#endif
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl_get_current_mtu( ssl ) != 0 )
{
const size_t mtu = ssl_get_current_mtu( ssl );
const int ret = mbedtls_ssl_get_record_expansion( ssl );
const size_t overhead = (size_t) ret;
if( ret < 0 )
return( ret );
if( mtu <= overhead )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "MTU too low for record expansion" ) );
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
}
if( max_len > mtu - overhead )
max_len = mtu - overhead;
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
#if !defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) && \
!defined(MBEDTLS_SSL_PROTO_DTLS)
((void) ssl);
#endif
return( (int) max_len );
}
#if defined(MBEDTLS_X509_CRT_PARSE_C)
const mbedtls_x509_crt *mbedtls_ssl_get_peer_cert( const mbedtls_ssl_context *ssl )
{
if( ssl == NULL || ssl->session == NULL )
return( NULL );
return( ssl->session->peer_cert );
}
#endif /* MBEDTLS_X509_CRT_PARSE_C */
#if defined(MBEDTLS_SSL_CLI_C)
int mbedtls_ssl_get_session( const mbedtls_ssl_context *ssl, mbedtls_ssl_session *dst )
{
if( ssl == NULL ||
dst == NULL ||
ssl->session == NULL ||
ssl->conf->endpoint != MBEDTLS_SSL_IS_CLIENT )
{
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
return( ssl_session_copy( dst, ssl->session ) );
}
#endif /* MBEDTLS_SSL_CLI_C */
/*
* Perform a single step of the SSL handshake
*/
int mbedtls_ssl_handshake_step( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
if( ssl == NULL || ssl->conf == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
#if defined(MBEDTLS_SSL_CLI_C)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
ret = mbedtls_ssl_handshake_client_step( ssl );
#endif
#if defined(MBEDTLS_SSL_SRV_C)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
ret = mbedtls_ssl_handshake_server_step( ssl );
#endif
return( ret );
}
/*
* Perform the SSL handshake
*/
int mbedtls_ssl_handshake( mbedtls_ssl_context *ssl )
{
int ret = 0;
if( ssl == NULL || ssl->conf == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> handshake" ) );
while( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
{
ret = mbedtls_ssl_handshake_step( ssl );
if( ret != 0 )
break;
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= handshake" ) );
return( ret );
}
#if defined(MBEDTLS_SSL_RENEGOTIATION)
#if defined(MBEDTLS_SSL_SRV_C)
/*
* Write HelloRequest to request renegotiation on server
*/
static int ssl_write_hello_request( mbedtls_ssl_context *ssl )
{
int ret;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write hello request" ) );
ssl->out_msglen = 4;
ssl->out_msgtype = MBEDTLS_SSL_MSG_HANDSHAKE;
ssl->out_msg[0] = MBEDTLS_SSL_HS_HELLO_REQUEST;
if( ( ret = mbedtls_ssl_write_handshake_msg( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_handshake_msg", ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write hello request" ) );
return( 0 );
}
#endif /* MBEDTLS_SSL_SRV_C */
/*
* Actually renegotiate current connection, triggered by either:
* - any side: calling mbedtls_ssl_renegotiate(),
* - client: receiving a HelloRequest during mbedtls_ssl_read(),
* - server: receiving any handshake message on server during mbedtls_ssl_read() after
* the initial handshake is completed.
* If the handshake doesn't complete due to waiting for I/O, it will continue
* during the next calls to mbedtls_ssl_renegotiate() or mbedtls_ssl_read() respectively.
*/
static int ssl_start_renegotiation( mbedtls_ssl_context *ssl )
{
int ret;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> renegotiate" ) );
if( ( ret = ssl_handshake_init( ssl ) ) != 0 )
return( ret );
/* RFC 6347 4.2.2: "[...] the HelloRequest will have message_seq = 0 and
* the ServerHello will have message_seq = 1" */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING )
{
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
ssl->handshake->out_msg_seq = 1;
else
ssl->handshake->in_msg_seq = 1;
}
#endif
ssl->state = MBEDTLS_SSL_HELLO_REQUEST;
ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS;
if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret );
return( ret );
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= renegotiate" ) );
return( 0 );
}
/*
* Renegotiate current connection on client,
* or request renegotiation on server
*/
int mbedtls_ssl_renegotiate( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
if( ssl == NULL || ssl->conf == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
#if defined(MBEDTLS_SSL_SRV_C)
/* On server, just send the request */
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER )
{
if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_PENDING;
/* Did we already try/start sending HelloRequest? */
if( ssl->out_left != 0 )
return( mbedtls_ssl_flush_output( ssl ) );
return( ssl_write_hello_request( ssl ) );
}
#endif /* MBEDTLS_SSL_SRV_C */
#if defined(MBEDTLS_SSL_CLI_C)
/*
* On client, either start the renegotiation process or,
* if already in progress, continue the handshake
*/
if( ssl->renego_status != MBEDTLS_SSL_RENEGOTIATION_IN_PROGRESS )
{
if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
if( ( ret = ssl_start_renegotiation( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_start_renegotiation", ret );
return( ret );
}
}
else
{
if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret );
return( ret );
}
}
#endif /* MBEDTLS_SSL_CLI_C */
return( ret );
}
/*
* Check record counters and renegotiate if they're above the limit.
*/
static int ssl_check_ctr_renegotiate( mbedtls_ssl_context *ssl )
{
size_t ep_len = ssl_ep_len( ssl );
int in_ctr_cmp;
int out_ctr_cmp;
if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER ||
ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING ||
ssl->conf->disable_renegotiation == MBEDTLS_SSL_RENEGOTIATION_DISABLED )
{
return( 0 );
}
in_ctr_cmp = memcmp( ssl->in_ctr + ep_len,
ssl->conf->renego_period + ep_len, 8 - ep_len );
out_ctr_cmp = memcmp( ssl->cur_out_ctr + ep_len,
ssl->conf->renego_period + ep_len, 8 - ep_len );
if( in_ctr_cmp <= 0 && out_ctr_cmp <= 0 )
{
return( 0 );
}
MBEDTLS_SSL_DEBUG_MSG( 1, ( "record counter limit reached: renegotiate" ) );
return( mbedtls_ssl_renegotiate( ssl ) );
}
#endif /* MBEDTLS_SSL_RENEGOTIATION */
/*
* Receive application data decrypted from the SSL layer
*/
int mbedtls_ssl_read( mbedtls_ssl_context *ssl, unsigned char *buf, size_t len )
{
int ret;
size_t n;
if( ssl == NULL || ssl->conf == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> read" ) );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
return( ret );
if( ssl->handshake != NULL &&
ssl->handshake->retransmit_state == MBEDTLS_SSL_RETRANS_SENDING )
{
if( ( ret = mbedtls_ssl_flight_transmit( ssl ) ) != 0 )
return( ret );
}
}
#endif
/*
* Check if renegotiation is necessary and/or handshake is
* in process. If yes, perform/continue, and fall through
* if an unexpected packet is received while the client
* is waiting for the ServerHello.
*
* (There is no equivalent to the last condition on
* the server-side as it is not treated as within
* a handshake while waiting for the ClientHello
* after a renegotiation request.)
*/
#if defined(MBEDTLS_SSL_RENEGOTIATION)
ret = ssl_check_ctr_renegotiate( ssl );
if( ret != MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO &&
ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_check_ctr_renegotiate", ret );
return( ret );
}
#endif
if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
{
ret = mbedtls_ssl_handshake( ssl );
if( ret != MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO &&
ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret );
return( ret );
}
}
/* Loop as long as no application data record is available */
while( ssl->in_offt == NULL )
{
/* Start timer if not already running */
if( ssl->f_get_timer != NULL &&
ssl->f_get_timer( ssl->p_timer ) == -1 )
{
ssl_set_timer( ssl, ssl->conf->read_timeout );
}
if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
{
if( ret == MBEDTLS_ERR_SSL_CONN_EOF )
return( 0 );
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
return( ret );
}
if( ssl->in_msglen == 0 &&
ssl->in_msgtype == MBEDTLS_SSL_MSG_APPLICATION_DATA )
{
/*
* OpenSSL sends empty messages to randomize the IV
*/
if( ( ret = mbedtls_ssl_read_record( ssl, 1 ) ) != 0 )
{
if( ret == MBEDTLS_ERR_SSL_CONN_EOF )
return( 0 );
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_read_record", ret );
return( ret );
}
}
if( ssl->in_msgtype == MBEDTLS_SSL_MSG_HANDSHAKE )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "received handshake message" ) );
/*
* - For client-side, expect SERVER_HELLO_REQUEST.
* - For server-side, expect CLIENT_HELLO.
* - Fail (TLS) or silently drop record (DTLS) in other cases.
*/
#if defined(MBEDTLS_SSL_CLI_C)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT &&
( ssl->in_msg[0] != MBEDTLS_SSL_HS_HELLO_REQUEST ||
ssl->in_hslen != mbedtls_ssl_hs_hdr_len( ssl ) ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake received (not HelloRequest)" ) );
/* With DTLS, drop the packet (probably from last handshake) */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
continue;
}
#endif
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
#endif /* MBEDTLS_SSL_CLI_C */
#if defined(MBEDTLS_SSL_SRV_C)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
ssl->in_msg[0] != MBEDTLS_SSL_HS_CLIENT_HELLO )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "handshake received (not ClientHello)" ) );
/* With DTLS, drop the packet (probably from last handshake) */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
continue;
}
#endif
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
#endif /* MBEDTLS_SSL_SRV_C */
#if defined(MBEDTLS_SSL_RENEGOTIATION)
/* Determine whether renegotiation attempt should be accepted */
if( ! ( ssl->conf->disable_renegotiation == MBEDTLS_SSL_RENEGOTIATION_DISABLED ||
( ssl->secure_renegotiation == MBEDTLS_SSL_LEGACY_RENEGOTIATION &&
ssl->conf->allow_legacy_renegotiation ==
MBEDTLS_SSL_LEGACY_NO_RENEGOTIATION ) ) )
{
/*
* Accept renegotiation request
*/
/* DTLS clients need to know renego is server-initiated */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM &&
ssl->conf->endpoint == MBEDTLS_SSL_IS_CLIENT )
{
ssl->renego_status = MBEDTLS_SSL_RENEGOTIATION_PENDING;
}
#endif
ret = ssl_start_renegotiation( ssl );
if( ret != MBEDTLS_ERR_SSL_WAITING_SERVER_HELLO_RENEGO &&
ret != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_start_renegotiation", ret );
return( ret );
}
}
else
#endif /* MBEDTLS_SSL_RENEGOTIATION */
{
/*
* Refuse renegotiation
*/
MBEDTLS_SSL_DEBUG_MSG( 3, ( "refusing renegotiation, sending alert" ) );
#if defined(MBEDTLS_SSL_PROTO_SSL3)
if( ssl->minor_ver == MBEDTLS_SSL_MINOR_VERSION_0 )
{
/* SSLv3 does not have a "no_renegotiation" warning, so
we send a fatal alert and abort the connection. */
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
else
#endif /* MBEDTLS_SSL_PROTO_SSL3 */
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver >= MBEDTLS_SSL_MINOR_VERSION_1 )
{
if( ( ret = mbedtls_ssl_send_alert_message( ssl,
MBEDTLS_SSL_ALERT_LEVEL_WARNING,
MBEDTLS_SSL_ALERT_MSG_NO_RENEGOTIATION ) ) != 0 )
{
return( ret );
}
}
else
#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 ||
MBEDTLS_SSL_PROTO_TLS1_2 */
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
}
/* At this point, we don't know whether the renegotiation has been
* completed or not. The cases to consider are the following:
* 1) The renegotiation is complete. In this case, no new record
* has been read yet.
* 2) The renegotiation is incomplete because the client received
* an application data record while awaiting the ServerHello.
* 3) The renegotiation is incomplete because the client received
* a non-handshake, non-application data message while awaiting
* the ServerHello.
* In each of these case, looping will be the proper action:
* - For 1), the next iteration will read a new record and check
* if it's application data.
* - For 2), the loop condition isn't satisfied as application data
* is present, hence continue is the same as break
* - For 3), the loop condition is satisfied and read_record
* will re-deliver the message that was held back by the client
* when expecting the ServerHello.
*/
continue;
}
#if defined(MBEDTLS_SSL_RENEGOTIATION)
else if( ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING )
{
if( ssl->conf->renego_max_records >= 0 )
{
if( ++ssl->renego_records_seen > ssl->conf->renego_max_records )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "renegotiation requested, "
"but not honored by client" ) );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
}
}
#endif /* MBEDTLS_SSL_RENEGOTIATION */
/* Fatal and closure alerts handled by mbedtls_ssl_read_record() */
if( ssl->in_msgtype == MBEDTLS_SSL_MSG_ALERT )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "ignoring non-fatal non-closure alert" ) );
return( MBEDTLS_ERR_SSL_WANT_READ );
}
if( ssl->in_msgtype != MBEDTLS_SSL_MSG_APPLICATION_DATA )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad application data message" ) );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
}
ssl->in_offt = ssl->in_msg;
/* We're going to return something now, cancel timer,
* except if handshake (renegotiation) is in progress */
if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER )
ssl_set_timer( ssl, 0 );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
/* If we requested renego but received AppData, resend HelloRequest.
* Do it now, after setting in_offt, to avoid taking this branch
* again if ssl_write_hello_request() returns WANT_WRITE */
#if defined(MBEDTLS_SSL_SRV_C) && defined(MBEDTLS_SSL_RENEGOTIATION)
if( ssl->conf->endpoint == MBEDTLS_SSL_IS_SERVER &&
ssl->renego_status == MBEDTLS_SSL_RENEGOTIATION_PENDING )
{
if( ( ret = ssl_resend_hello_request( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_resend_hello_request", ret );
return( ret );
}
}
#endif /* MBEDTLS_SSL_SRV_C && MBEDTLS_SSL_RENEGOTIATION */
#endif /* MBEDTLS_SSL_PROTO_DTLS */
}
n = ( len < ssl->in_msglen )
? len : ssl->in_msglen;
memcpy( buf, ssl->in_offt, n );
ssl->in_msglen -= n;
if( ssl->in_msglen == 0 )
{
/* all bytes consumed */
ssl->in_offt = NULL;
ssl->keep_current_message = 0;
}
else
{
/* more data available */
ssl->in_offt += n;
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= read" ) );
return( (int) n );
}
/*
* Send application data to be encrypted by the SSL layer, taking care of max
* fragment length and buffer size.
*
* According to RFC 5246 Section 6.2.1:
*
* Zero-length fragments of Application data MAY be sent as they are
* potentially useful as a traffic analysis countermeasure.
*
* Therefore, it is possible that the input message length is 0 and the
* corresponding return code is 0 on success.
*/
static int ssl_write_real( mbedtls_ssl_context *ssl,
const unsigned char *buf, size_t len )
{
int ret = mbedtls_ssl_get_max_out_record_payload( ssl );
const size_t max_len = (size_t) ret;
if( ret < 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_get_max_out_record_payload", ret );
return( ret );
}
if( len > max_len )
{
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "fragment larger than the (negotiated) "
"maximum fragment length: %d > %d",
len, max_len ) );
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
else
#endif
len = max_len;
}
if( ssl->out_left != 0 )
{
/*
* The user has previously tried to send the data and
* MBEDTLS_ERR_SSL_WANT_WRITE or the message was only partially
* written. In this case, we expect the high-level write function
* (e.g. mbedtls_ssl_write()) to be called with the same parameters
*/
if( ( ret = mbedtls_ssl_flush_output( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_flush_output", ret );
return( ret );
}
}
else
{
/*
* The user is trying to send a message the first time, so we need to
* copy the data into the internal buffers and setup the data structure
* to keep track of partial writes
*/
ssl->out_msglen = len;
ssl->out_msgtype = MBEDTLS_SSL_MSG_APPLICATION_DATA;
memcpy( ssl->out_msg, buf, len );
if( ( ret = mbedtls_ssl_write_record( ssl, SSL_FORCE_FLUSH ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_write_record", ret );
return( ret );
}
}
return( (int) len );
}
/*
* Write application data, doing 1/n-1 splitting if necessary.
*
* With non-blocking I/O, ssl_write_real() may return WANT_WRITE,
* then the caller will call us again with the same arguments, so
* remember whether we already did the split or not.
*/
#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
static int ssl_write_split( mbedtls_ssl_context *ssl,
const unsigned char *buf, size_t len )
{
int ret;
if( ssl->conf->cbc_record_splitting ==
MBEDTLS_SSL_CBC_RECORD_SPLITTING_DISABLED ||
len <= 1 ||
ssl->minor_ver > MBEDTLS_SSL_MINOR_VERSION_1 ||
mbedtls_cipher_get_cipher_mode( &ssl->transform_out->cipher_ctx_enc )
!= MBEDTLS_MODE_CBC )
{
return( ssl_write_real( ssl, buf, len ) );
}
if( ssl->split_done == 0 )
{
if( ( ret = ssl_write_real( ssl, buf, 1 ) ) <= 0 )
return( ret );
ssl->split_done = 1;
}
if( ( ret = ssl_write_real( ssl, buf + 1, len - 1 ) ) <= 0 )
return( ret );
ssl->split_done = 0;
return( ret + 1 );
}
#endif /* MBEDTLS_SSL_CBC_RECORD_SPLITTING */
/*
* Write application data (public-facing wrapper)
*/
int mbedtls_ssl_write( mbedtls_ssl_context *ssl, const unsigned char *buf, size_t len )
{
int ret;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write" ) );
if( ssl == NULL || ssl->conf == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
#if defined(MBEDTLS_SSL_RENEGOTIATION)
if( ( ret = ssl_check_ctr_renegotiate( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "ssl_check_ctr_renegotiate", ret );
return( ret );
}
#endif
if( ssl->state != MBEDTLS_SSL_HANDSHAKE_OVER )
{
if( ( ret = mbedtls_ssl_handshake( ssl ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_handshake", ret );
return( ret );
}
}
#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
ret = ssl_write_split( ssl, buf, len );
#else
ret = ssl_write_real( ssl, buf, len );
#endif
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write" ) );
return( ret );
}
/*
* Notify the peer that the connection is being closed
*/
int mbedtls_ssl_close_notify( mbedtls_ssl_context *ssl )
{
int ret;
if( ssl == NULL || ssl->conf == NULL )
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> write close notify" ) );
if( ssl->out_left != 0 )
return( mbedtls_ssl_flush_output( ssl ) );
if( ssl->state == MBEDTLS_SSL_HANDSHAKE_OVER )
{
if( ( ret = mbedtls_ssl_send_alert_message( ssl,
MBEDTLS_SSL_ALERT_LEVEL_WARNING,
MBEDTLS_SSL_ALERT_MSG_CLOSE_NOTIFY ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_ssl_send_alert_message", ret );
return( ret );
}
}
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= write close notify" ) );
return( 0 );
}
void mbedtls_ssl_transform_free( mbedtls_ssl_transform *transform )
{
if( transform == NULL )
return;
#if defined(MBEDTLS_ZLIB_SUPPORT)
deflateEnd( &transform->ctx_deflate );
inflateEnd( &transform->ctx_inflate );
#endif
mbedtls_cipher_free( &transform->cipher_ctx_enc );
mbedtls_cipher_free( &transform->cipher_ctx_dec );
mbedtls_md_free( &transform->md_ctx_enc );
mbedtls_md_free( &transform->md_ctx_dec );
mbedtls_platform_zeroize( transform, sizeof( mbedtls_ssl_transform ) );
}
#if defined(MBEDTLS_X509_CRT_PARSE_C)
static void ssl_key_cert_free( mbedtls_ssl_key_cert *key_cert )
{
mbedtls_ssl_key_cert *cur = key_cert, *next;
while( cur != NULL )
{
next = cur->next;
mbedtls_free( cur );
cur = next;
}
}
#endif /* MBEDTLS_X509_CRT_PARSE_C */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
static void ssl_buffering_free( mbedtls_ssl_context *ssl )
{
unsigned offset;
mbedtls_ssl_handshake_params * const hs = ssl->handshake;
if( hs == NULL )
return;
ssl_free_buffered_record( ssl );
for( offset = 0; offset < MBEDTLS_SSL_MAX_BUFFERED_HS; offset++ )
ssl_buffering_free_slot( ssl, offset );
}
static void ssl_buffering_free_slot( mbedtls_ssl_context *ssl,
uint8_t slot )
{
mbedtls_ssl_handshake_params * const hs = ssl->handshake;
mbedtls_ssl_hs_buffer * const hs_buf = &hs->buffering.hs[slot];
if( slot >= MBEDTLS_SSL_MAX_BUFFERED_HS )
return;
if( hs_buf->is_valid == 1 )
{
hs->buffering.total_bytes_buffered -= hs_buf->data_len;
mbedtls_platform_zeroize( hs_buf->data, hs_buf->data_len );
mbedtls_free( hs_buf->data );
memset( hs_buf, 0, sizeof( mbedtls_ssl_hs_buffer ) );
}
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
void mbedtls_ssl_handshake_free( mbedtls_ssl_context *ssl )
{
mbedtls_ssl_handshake_params *handshake = ssl->handshake;
if( handshake == NULL )
return;
#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
if( ssl->conf->f_async_cancel != NULL && handshake->async_in_progress != 0 )
{
ssl->conf->f_async_cancel( ssl );
handshake->async_in_progress = 0;
}
#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1)
mbedtls_md5_free( &handshake->fin_md5 );
mbedtls_sha1_free( &handshake->fin_sha1 );
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
#if defined(MBEDTLS_SHA256_C)
mbedtls_sha256_free( &handshake->fin_sha256 );
#endif
#if defined(MBEDTLS_SHA512_C)
mbedtls_sha512_free( &handshake->fin_sha512 );
#endif
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
#if defined(MBEDTLS_DHM_C)
mbedtls_dhm_free( &handshake->dhm_ctx );
#endif
#if defined(MBEDTLS_ECDH_C)
mbedtls_ecdh_free( &handshake->ecdh_ctx );
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
mbedtls_ecjpake_free( &handshake->ecjpake_ctx );
#if defined(MBEDTLS_SSL_CLI_C)
mbedtls_free( handshake->ecjpake_cache );
handshake->ecjpake_cache = NULL;
handshake->ecjpake_cache_len = 0;
#endif
#endif
#if defined(MBEDTLS_ECDH_C) || defined(MBEDTLS_ECDSA_C) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
/* explicit void pointer cast for buggy MS compiler */
mbedtls_free( (void *) handshake->curves );
#endif
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
if( handshake->psk != NULL )
{
mbedtls_platform_zeroize( handshake->psk, handshake->psk_len );
mbedtls_free( handshake->psk );
}
#endif
#if defined(MBEDTLS_X509_CRT_PARSE_C) && \
defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
/*
* Free only the linked list wrapper, not the keys themselves
* since the belong to the SNI callback
*/
if( handshake->sni_key_cert != NULL )
{
mbedtls_ssl_key_cert *cur = handshake->sni_key_cert, *next;
while( cur != NULL )
{
next = cur->next;
mbedtls_free( cur );
cur = next;
}
}
#endif /* MBEDTLS_X509_CRT_PARSE_C && MBEDTLS_SSL_SERVER_NAME_INDICATION */
#if defined(MBEDTLS_SSL__ECP_RESTARTABLE)
mbedtls_x509_crt_restart_free( &handshake->ecrs_ctx );
#endif
#if defined(MBEDTLS_SSL_PROTO_DTLS)
mbedtls_free( handshake->verify_cookie );
ssl_flight_free( handshake->flight );
ssl_buffering_free( ssl );
#endif
mbedtls_platform_zeroize( handshake,
sizeof( mbedtls_ssl_handshake_params ) );
}
void mbedtls_ssl_session_free( mbedtls_ssl_session *session )
{
if( session == NULL )
return;
#if defined(MBEDTLS_X509_CRT_PARSE_C)
if( session->peer_cert != NULL )
{
mbedtls_x509_crt_free( session->peer_cert );
mbedtls_free( session->peer_cert );
}
#endif
#if defined(MBEDTLS_SSL_SESSION_TICKETS) && defined(MBEDTLS_SSL_CLI_C)
mbedtls_free( session->ticket );
#endif
mbedtls_platform_zeroize( session, sizeof( mbedtls_ssl_session ) );
}
/*
* Free an SSL context
*/
void mbedtls_ssl_free( mbedtls_ssl_context *ssl )
{
if( ssl == NULL )
return;
MBEDTLS_SSL_DEBUG_MSG( 2, ( "=> free" ) );
if( ssl->out_buf != NULL )
{
mbedtls_platform_zeroize( ssl->out_buf, MBEDTLS_SSL_OUT_BUFFER_LEN );
mbedtls_free( ssl->out_buf );
}
if( ssl->in_buf != NULL )
{
mbedtls_platform_zeroize( ssl->in_buf, MBEDTLS_SSL_IN_BUFFER_LEN );
mbedtls_free( ssl->in_buf );
}
#if defined(MBEDTLS_ZLIB_SUPPORT)
if( ssl->compress_buf != NULL )
{
mbedtls_platform_zeroize( ssl->compress_buf, MBEDTLS_SSL_COMPRESS_BUFFER_LEN );
mbedtls_free( ssl->compress_buf );
}
#endif
if( ssl->transform )
{
mbedtls_ssl_transform_free( ssl->transform );
mbedtls_free( ssl->transform );
}
if( ssl->handshake )
{
mbedtls_ssl_handshake_free( ssl );
mbedtls_ssl_transform_free( ssl->transform_negotiate );
mbedtls_ssl_session_free( ssl->session_negotiate );
mbedtls_free( ssl->handshake );
mbedtls_free( ssl->transform_negotiate );
mbedtls_free( ssl->session_negotiate );
}
if( ssl->session )
{
mbedtls_ssl_session_free( ssl->session );
mbedtls_free( ssl->session );
}
#if defined(MBEDTLS_X509_CRT_PARSE_C)
if( ssl->hostname != NULL )
{
mbedtls_platform_zeroize( ssl->hostname, strlen( ssl->hostname ) );
mbedtls_free( ssl->hostname );
}
#endif
#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
if( mbedtls_ssl_hw_record_finish != NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "going for mbedtls_ssl_hw_record_finish()" ) );
mbedtls_ssl_hw_record_finish( ssl );
}
#endif
#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
mbedtls_free( ssl->cli_id );
#endif
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= free" ) );
/* Actually clear after last debug message */
mbedtls_platform_zeroize( ssl, sizeof( mbedtls_ssl_context ) );
}
/*
* Initialze mbedtls_ssl_config
*/
void mbedtls_ssl_config_init( mbedtls_ssl_config *conf )
{
memset( conf, 0, sizeof( mbedtls_ssl_config ) );
}
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
static int ssl_preset_default_hashes[] = {
#if defined(MBEDTLS_SHA512_C)
MBEDTLS_MD_SHA512,
MBEDTLS_MD_SHA384,
#endif
#if defined(MBEDTLS_SHA256_C)
MBEDTLS_MD_SHA256,
MBEDTLS_MD_SHA224,
#endif
#if defined(MBEDTLS_SHA1_C) && defined(MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE)
MBEDTLS_MD_SHA1,
#endif
MBEDTLS_MD_NONE
};
#endif
static int ssl_preset_suiteb_ciphersuites[] = {
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
0
};
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
static int ssl_preset_suiteb_hashes[] = {
MBEDTLS_MD_SHA256,
MBEDTLS_MD_SHA384,
MBEDTLS_MD_NONE
};
#endif
#if defined(MBEDTLS_ECP_C)
static mbedtls_ecp_group_id ssl_preset_suiteb_curves[] = {
MBEDTLS_ECP_DP_SECP256R1,
MBEDTLS_ECP_DP_SECP384R1,
MBEDTLS_ECP_DP_NONE
};
#endif
/*
* Load default in mbedtls_ssl_config
*/
int mbedtls_ssl_config_defaults( mbedtls_ssl_config *conf,
int endpoint, int transport, int preset )
{
#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C)
int ret;
#endif
/* Use the functions here so that they are covered in tests,
* but otherwise access member directly for efficiency */
mbedtls_ssl_conf_endpoint( conf, endpoint );
mbedtls_ssl_conf_transport( conf, transport );
/*
* Things that are common to all presets
*/
#if defined(MBEDTLS_SSL_CLI_C)
if( endpoint == MBEDTLS_SSL_IS_CLIENT )
{
conf->authmode = MBEDTLS_SSL_VERIFY_REQUIRED;
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
conf->session_tickets = MBEDTLS_SSL_SESSION_TICKETS_ENABLED;
#endif
}
#endif
#if defined(MBEDTLS_ARC4_C)
conf->arc4_disabled = MBEDTLS_SSL_ARC4_DISABLED;
#endif
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
conf->encrypt_then_mac = MBEDTLS_SSL_ETM_ENABLED;
#endif
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
conf->extended_ms = MBEDTLS_SSL_EXTENDED_MS_ENABLED;
#endif
#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
conf->cbc_record_splitting = MBEDTLS_SSL_CBC_RECORD_SPLITTING_ENABLED;
#endif
#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY) && defined(MBEDTLS_SSL_SRV_C)
conf->f_cookie_write = ssl_cookie_write_dummy;
conf->f_cookie_check = ssl_cookie_check_dummy;
#endif
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
conf->anti_replay = MBEDTLS_SSL_ANTI_REPLAY_ENABLED;
#endif
#if defined(MBEDTLS_SSL_SRV_C)
conf->cert_req_ca_list = MBEDTLS_SSL_CERT_REQ_CA_LIST_ENABLED;
#endif
#if defined(MBEDTLS_SSL_PROTO_DTLS)
conf->hs_timeout_min = MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MIN;
conf->hs_timeout_max = MBEDTLS_SSL_DTLS_TIMEOUT_DFL_MAX;
#endif
#if defined(MBEDTLS_SSL_RENEGOTIATION)
conf->renego_max_records = MBEDTLS_SSL_RENEGO_MAX_RECORDS_DEFAULT;
memset( conf->renego_period, 0x00, 2 );
memset( conf->renego_period + 2, 0xFF, 6 );
#endif
#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_SRV_C)
if( endpoint == MBEDTLS_SSL_IS_SERVER )
{
const unsigned char dhm_p[] =
MBEDTLS_DHM_RFC3526_MODP_2048_P_BIN;
const unsigned char dhm_g[] =
MBEDTLS_DHM_RFC3526_MODP_2048_G_BIN;
if ( ( ret = mbedtls_ssl_conf_dh_param_bin( conf,
dhm_p, sizeof( dhm_p ),
dhm_g, sizeof( dhm_g ) ) ) != 0 )
{
return( ret );
}
}
#endif
/*
* Preset-specific defaults
*/
switch( preset )
{
/*
* NSA Suite B
*/
case MBEDTLS_SSL_PRESET_SUITEB:
conf->min_major_ver = MBEDTLS_SSL_MAJOR_VERSION_3;
conf->min_minor_ver = MBEDTLS_SSL_MINOR_VERSION_3; /* TLS 1.2 */
conf->max_major_ver = MBEDTLS_SSL_MAX_MAJOR_VERSION;
conf->max_minor_ver = MBEDTLS_SSL_MAX_MINOR_VERSION;
conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] =
conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] =
conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] =
conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] =
ssl_preset_suiteb_ciphersuites;
#if defined(MBEDTLS_X509_CRT_PARSE_C)
conf->cert_profile = &mbedtls_x509_crt_profile_suiteb;
#endif
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
conf->sig_hashes = ssl_preset_suiteb_hashes;
#endif
#if defined(MBEDTLS_ECP_C)
conf->curve_list = ssl_preset_suiteb_curves;
#endif
break;
/*
* Default
*/
default:
conf->min_major_ver = ( MBEDTLS_SSL_MIN_MAJOR_VERSION >
MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION ) ?
MBEDTLS_SSL_MIN_MAJOR_VERSION :
MBEDTLS_SSL_MIN_VALID_MAJOR_VERSION;
conf->min_minor_ver = ( MBEDTLS_SSL_MIN_MINOR_VERSION >
MBEDTLS_SSL_MIN_VALID_MINOR_VERSION ) ?
MBEDTLS_SSL_MIN_MINOR_VERSION :
MBEDTLS_SSL_MIN_VALID_MINOR_VERSION;
conf->max_major_ver = MBEDTLS_SSL_MAX_MAJOR_VERSION;
conf->max_minor_ver = MBEDTLS_SSL_MAX_MINOR_VERSION;
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
conf->min_minor_ver = MBEDTLS_SSL_MINOR_VERSION_2;
#endif
conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_0] =
conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_1] =
conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_2] =
conf->ciphersuite_list[MBEDTLS_SSL_MINOR_VERSION_3] =
mbedtls_ssl_list_ciphersuites();
#if defined(MBEDTLS_X509_CRT_PARSE_C)
conf->cert_profile = &mbedtls_x509_crt_profile_default;
#endif
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
conf->sig_hashes = ssl_preset_default_hashes;
#endif
#if defined(MBEDTLS_ECP_C)
conf->curve_list = mbedtls_ecp_grp_id_list();
#endif
#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_SSL_CLI_C)
conf->dhm_min_bitlen = 1024;
#endif
}
return( 0 );
}
/*
* Free mbedtls_ssl_config
*/
void mbedtls_ssl_config_free( mbedtls_ssl_config *conf )
{
#if defined(MBEDTLS_DHM_C)
mbedtls_mpi_free( &conf->dhm_P );
mbedtls_mpi_free( &conf->dhm_G );
#endif
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
if( conf->psk != NULL )
{
mbedtls_platform_zeroize( conf->psk, conf->psk_len );
mbedtls_free( conf->psk );
conf->psk = NULL;
conf->psk_len = 0;
}
if( conf->psk_identity != NULL )
{
mbedtls_platform_zeroize( conf->psk_identity, conf->psk_identity_len );
mbedtls_free( conf->psk_identity );
conf->psk_identity = NULL;
conf->psk_identity_len = 0;
}
#endif
#if defined(MBEDTLS_X509_CRT_PARSE_C)
ssl_key_cert_free( conf->key_cert );
#endif
mbedtls_platform_zeroize( conf, sizeof( mbedtls_ssl_config ) );
}
#if defined(MBEDTLS_PK_C) && \
( defined(MBEDTLS_RSA_C) || defined(MBEDTLS_ECDSA_C) )
/*
* Convert between MBEDTLS_PK_XXX and SSL_SIG_XXX
*/
unsigned char mbedtls_ssl_sig_from_pk( mbedtls_pk_context *pk )
{
#if defined(MBEDTLS_RSA_C)
if( mbedtls_pk_can_do( pk, MBEDTLS_PK_RSA ) )
return( MBEDTLS_SSL_SIG_RSA );
#endif
#if defined(MBEDTLS_ECDSA_C)
if( mbedtls_pk_can_do( pk, MBEDTLS_PK_ECDSA ) )
return( MBEDTLS_SSL_SIG_ECDSA );
#endif
return( MBEDTLS_SSL_SIG_ANON );
}
unsigned char mbedtls_ssl_sig_from_pk_alg( mbedtls_pk_type_t type )
{
switch( type ) {
case MBEDTLS_PK_RSA:
return( MBEDTLS_SSL_SIG_RSA );
case MBEDTLS_PK_ECDSA:
case MBEDTLS_PK_ECKEY:
return( MBEDTLS_SSL_SIG_ECDSA );
default:
return( MBEDTLS_SSL_SIG_ANON );
}
}
mbedtls_pk_type_t mbedtls_ssl_pk_alg_from_sig( unsigned char sig )
{
switch( sig )
{
#if defined(MBEDTLS_RSA_C)
case MBEDTLS_SSL_SIG_RSA:
return( MBEDTLS_PK_RSA );
#endif
#if defined(MBEDTLS_ECDSA_C)
case MBEDTLS_SSL_SIG_ECDSA:
return( MBEDTLS_PK_ECDSA );
#endif
default:
return( MBEDTLS_PK_NONE );
}
}
#endif /* MBEDTLS_PK_C && ( MBEDTLS_RSA_C || MBEDTLS_ECDSA_C ) */
#if defined(MBEDTLS_SSL_PROTO_TLS1_2) && \
defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
/* Find an entry in a signature-hash set matching a given hash algorithm. */
mbedtls_md_type_t mbedtls_ssl_sig_hash_set_find( mbedtls_ssl_sig_hash_set_t *set,
mbedtls_pk_type_t sig_alg )
{
switch( sig_alg )
{
case MBEDTLS_PK_RSA:
return( set->rsa );
case MBEDTLS_PK_ECDSA:
return( set->ecdsa );
default:
return( MBEDTLS_MD_NONE );
}
}
/* Add a signature-hash-pair to a signature-hash set */
void mbedtls_ssl_sig_hash_set_add( mbedtls_ssl_sig_hash_set_t *set,
mbedtls_pk_type_t sig_alg,
mbedtls_md_type_t md_alg )
{
switch( sig_alg )
{
case MBEDTLS_PK_RSA:
if( set->rsa == MBEDTLS_MD_NONE )
set->rsa = md_alg;
break;
case MBEDTLS_PK_ECDSA:
if( set->ecdsa == MBEDTLS_MD_NONE )
set->ecdsa = md_alg;
break;
default:
break;
}
}
/* Allow exactly one hash algorithm for each signature. */
void mbedtls_ssl_sig_hash_set_const_hash( mbedtls_ssl_sig_hash_set_t *set,
mbedtls_md_type_t md_alg )
{
set->rsa = md_alg;
set->ecdsa = md_alg;
}
#endif /* MBEDTLS_SSL_PROTO_TLS1_2) &&
MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
/*
* Convert from MBEDTLS_SSL_HASH_XXX to MBEDTLS_MD_XXX
*/
mbedtls_md_type_t mbedtls_ssl_md_alg_from_hash( unsigned char hash )
{
switch( hash )
{
#if defined(MBEDTLS_MD5_C)
case MBEDTLS_SSL_HASH_MD5:
return( MBEDTLS_MD_MD5 );
#endif
#if defined(MBEDTLS_SHA1_C)
case MBEDTLS_SSL_HASH_SHA1:
return( MBEDTLS_MD_SHA1 );
#endif
#if defined(MBEDTLS_SHA256_C)
case MBEDTLS_SSL_HASH_SHA224:
return( MBEDTLS_MD_SHA224 );
case MBEDTLS_SSL_HASH_SHA256:
return( MBEDTLS_MD_SHA256 );
#endif
#if defined(MBEDTLS_SHA512_C)
case MBEDTLS_SSL_HASH_SHA384:
return( MBEDTLS_MD_SHA384 );
case MBEDTLS_SSL_HASH_SHA512:
return( MBEDTLS_MD_SHA512 );
#endif
default:
return( MBEDTLS_MD_NONE );
}
}
/*
* Convert from MBEDTLS_MD_XXX to MBEDTLS_SSL_HASH_XXX
*/
unsigned char mbedtls_ssl_hash_from_md_alg( int md )
{
switch( md )
{
#if defined(MBEDTLS_MD5_C)
case MBEDTLS_MD_MD5:
return( MBEDTLS_SSL_HASH_MD5 );
#endif
#if defined(MBEDTLS_SHA1_C)
case MBEDTLS_MD_SHA1:
return( MBEDTLS_SSL_HASH_SHA1 );
#endif
#if defined(MBEDTLS_SHA256_C)
case MBEDTLS_MD_SHA224:
return( MBEDTLS_SSL_HASH_SHA224 );
case MBEDTLS_MD_SHA256:
return( MBEDTLS_SSL_HASH_SHA256 );
#endif
#if defined(MBEDTLS_SHA512_C)
case MBEDTLS_MD_SHA384:
return( MBEDTLS_SSL_HASH_SHA384 );
case MBEDTLS_MD_SHA512:
return( MBEDTLS_SSL_HASH_SHA512 );
#endif
default:
return( MBEDTLS_SSL_HASH_NONE );
}
}
#if defined(MBEDTLS_ECP_C)
/*
* Check if a curve proposed by the peer is in our list.
* Return 0 if we're willing to use it, -1 otherwise.
*/
int mbedtls_ssl_check_curve( const mbedtls_ssl_context *ssl, mbedtls_ecp_group_id grp_id )
{
const mbedtls_ecp_group_id *gid;
if( ssl->conf->curve_list == NULL )
return( -1 );
for( gid = ssl->conf->curve_list; *gid != MBEDTLS_ECP_DP_NONE; gid++ )
if( *gid == grp_id )
return( 0 );
return( -1 );
}
#endif /* MBEDTLS_ECP_C */
#if defined(MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED)
/*
* Check if a hash proposed by the peer is in our list.
* Return 0 if we're willing to use it, -1 otherwise.
*/
int mbedtls_ssl_check_sig_hash( const mbedtls_ssl_context *ssl,
mbedtls_md_type_t md )
{
const int *cur;
if( ssl->conf->sig_hashes == NULL )
return( -1 );
for( cur = ssl->conf->sig_hashes; *cur != MBEDTLS_MD_NONE; cur++ )
if( *cur == (int) md )
return( 0 );
return( -1 );
}
#endif /* MBEDTLS_KEY_EXCHANGE__WITH_CERT__ENABLED */
#if defined(MBEDTLS_X509_CRT_PARSE_C)
int mbedtls_ssl_check_cert_usage( const mbedtls_x509_crt *cert,
const mbedtls_ssl_ciphersuite_t *ciphersuite,
int cert_endpoint,
uint32_t *flags )
{
int ret = 0;
#if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
int usage = 0;
#endif
#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE)
const char *ext_oid;
size_t ext_len;
#endif
#if !defined(MBEDTLS_X509_CHECK_KEY_USAGE) && \
!defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE)
((void) cert);
((void) cert_endpoint);
((void) flags);
#endif
#if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
if( cert_endpoint == MBEDTLS_SSL_IS_SERVER )
{
/* Server part of the key exchange */
switch( ciphersuite->key_exchange )
{
case MBEDTLS_KEY_EXCHANGE_RSA:
case MBEDTLS_KEY_EXCHANGE_RSA_PSK:
usage = MBEDTLS_X509_KU_KEY_ENCIPHERMENT;
break;
case MBEDTLS_KEY_EXCHANGE_DHE_RSA:
case MBEDTLS_KEY_EXCHANGE_ECDHE_RSA:
case MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA:
usage = MBEDTLS_X509_KU_DIGITAL_SIGNATURE;
break;
case MBEDTLS_KEY_EXCHANGE_ECDH_RSA:
case MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA:
usage = MBEDTLS_X509_KU_KEY_AGREEMENT;
break;
/* Don't use default: we want warnings when adding new values */
case MBEDTLS_KEY_EXCHANGE_NONE:
case MBEDTLS_KEY_EXCHANGE_PSK:
case MBEDTLS_KEY_EXCHANGE_DHE_PSK:
case MBEDTLS_KEY_EXCHANGE_ECDHE_PSK:
case MBEDTLS_KEY_EXCHANGE_ECJPAKE:
usage = 0;
}
}
else
{
/* Client auth: we only implement rsa_sign and mbedtls_ecdsa_sign for now */
usage = MBEDTLS_X509_KU_DIGITAL_SIGNATURE;
}
if( mbedtls_x509_crt_check_key_usage( cert, usage ) != 0 )
{
*flags |= MBEDTLS_X509_BADCERT_KEY_USAGE;
ret = -1;
}
#else
((void) ciphersuite);
#endif /* MBEDTLS_X509_CHECK_KEY_USAGE */
#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE)
if( cert_endpoint == MBEDTLS_SSL_IS_SERVER )
{
ext_oid = MBEDTLS_OID_SERVER_AUTH;
ext_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_SERVER_AUTH );
}
else
{
ext_oid = MBEDTLS_OID_CLIENT_AUTH;
ext_len = MBEDTLS_OID_SIZE( MBEDTLS_OID_CLIENT_AUTH );
}
if( mbedtls_x509_crt_check_extended_key_usage( cert, ext_oid, ext_len ) != 0 )
{
*flags |= MBEDTLS_X509_BADCERT_EXT_KEY_USAGE;
ret = -1;
}
#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */
return( ret );
}
#endif /* MBEDTLS_X509_CRT_PARSE_C */
/*
* Convert version numbers to/from wire format
* and, for DTLS, to/from TLS equivalent.
*
* For TLS this is the identity.
* For DTLS, use 1's complement (v -> 255 - v, and then map as follows:
* 1.0 <-> 3.2 (DTLS 1.0 is based on TLS 1.1)
* 1.x <-> 3.x+1 for x != 0 (DTLS 1.2 based on TLS 1.2)
*/
void mbedtls_ssl_write_version( int major, int minor, int transport,
unsigned char ver[2] )
{
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
if( minor == MBEDTLS_SSL_MINOR_VERSION_2 )
--minor; /* DTLS 1.0 stored as TLS 1.1 internally */
ver[0] = (unsigned char)( 255 - ( major - 2 ) );
ver[1] = (unsigned char)( 255 - ( minor - 1 ) );
}
else
#else
((void) transport);
#endif
{
ver[0] = (unsigned char) major;
ver[1] = (unsigned char) minor;
}
}
void mbedtls_ssl_read_version( int *major, int *minor, int transport,
const unsigned char ver[2] )
{
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( transport == MBEDTLS_SSL_TRANSPORT_DATAGRAM )
{
*major = 255 - ver[0] + 2;
*minor = 255 - ver[1] + 1;
if( *minor == MBEDTLS_SSL_MINOR_VERSION_1 )
++*minor; /* DTLS 1.0 stored as TLS 1.1 internally */
}
else
#else
((void) transport);
#endif
{
*major = ver[0];
*minor = ver[1];
}
}
int mbedtls_ssl_set_calc_verify_md( mbedtls_ssl_context *ssl, int md )
{
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
if( ssl->minor_ver != MBEDTLS_SSL_MINOR_VERSION_3 )
return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH;
switch( md )
{
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1)
#if defined(MBEDTLS_MD5_C)
case MBEDTLS_SSL_HASH_MD5:
return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH;
#endif
#if defined(MBEDTLS_SHA1_C)
case MBEDTLS_SSL_HASH_SHA1:
ssl->handshake->calc_verify = ssl_calc_verify_tls;
break;
#endif
#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 */
#if defined(MBEDTLS_SHA512_C)
case MBEDTLS_SSL_HASH_SHA384:
ssl->handshake->calc_verify = ssl_calc_verify_tls_sha384;
break;
#endif
#if defined(MBEDTLS_SHA256_C)
case MBEDTLS_SSL_HASH_SHA256:
ssl->handshake->calc_verify = ssl_calc_verify_tls_sha256;
break;
#endif
default:
return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH;
}
return 0;
#else /* !MBEDTLS_SSL_PROTO_TLS1_2 */
(void) ssl;
(void) md;
return MBEDTLS_ERR_SSL_INVALID_VERIFY_HASH;
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
}
#if defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1)
int mbedtls_ssl_get_key_exchange_md_ssl_tls( mbedtls_ssl_context *ssl,
unsigned char *output,
unsigned char *data, size_t data_len )
{
int ret = 0;
mbedtls_md5_context mbedtls_md5;
mbedtls_sha1_context mbedtls_sha1;
mbedtls_md5_init( &mbedtls_md5 );
mbedtls_sha1_init( &mbedtls_sha1 );
/*
* digitally-signed struct {
* opaque md5_hash[16];
* opaque sha_hash[20];
* };
*
* md5_hash
* MD5(ClientHello.random + ServerHello.random
* + ServerParams);
* sha_hash
* SHA(ClientHello.random + ServerHello.random
* + ServerParams);
*/
if( ( ret = mbedtls_md5_starts_ret( &mbedtls_md5 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_starts_ret", ret );
goto exit;
}
if( ( ret = mbedtls_md5_update_ret( &mbedtls_md5,
ssl->handshake->randbytes, 64 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_update_ret", ret );
goto exit;
}
if( ( ret = mbedtls_md5_update_ret( &mbedtls_md5, data, data_len ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_update_ret", ret );
goto exit;
}
if( ( ret = mbedtls_md5_finish_ret( &mbedtls_md5, output ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md5_finish_ret", ret );
goto exit;
}
if( ( ret = mbedtls_sha1_starts_ret( &mbedtls_sha1 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_starts_ret", ret );
goto exit;
}
if( ( ret = mbedtls_sha1_update_ret( &mbedtls_sha1,
ssl->handshake->randbytes, 64 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_update_ret", ret );
goto exit;
}
if( ( ret = mbedtls_sha1_update_ret( &mbedtls_sha1, data,
data_len ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_update_ret", ret );
goto exit;
}
if( ( ret = mbedtls_sha1_finish_ret( &mbedtls_sha1,
output + 16 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_sha1_finish_ret", ret );
goto exit;
}
exit:
mbedtls_md5_free( &mbedtls_md5 );
mbedtls_sha1_free( &mbedtls_sha1 );
if( ret != 0 )
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
return( ret );
}
#endif /* MBEDTLS_SSL_PROTO_SSL3 || MBEDTLS_SSL_PROTO_TLS1 || \
MBEDTLS_SSL_PROTO_TLS1_1 */
#if defined(MBEDTLS_SSL_PROTO_TLS1) || defined(MBEDTLS_SSL_PROTO_TLS1_1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_2)
int mbedtls_ssl_get_key_exchange_md_tls1_2( mbedtls_ssl_context *ssl,
unsigned char *hash, size_t *hashlen,
unsigned char *data, size_t data_len,
mbedtls_md_type_t md_alg )
{
int ret = 0;
mbedtls_md_context_t ctx;
const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type( md_alg );
*hashlen = mbedtls_md_get_size( md_info );
mbedtls_md_init( &ctx );
/*
* digitally-signed struct {
* opaque client_random[32];
* opaque server_random[32];
* ServerDHParams params;
* };
*/
if( ( ret = mbedtls_md_setup( &ctx, md_info, 0 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_setup", ret );
goto exit;
}
if( ( ret = mbedtls_md_starts( &ctx ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_starts", ret );
goto exit;
}
if( ( ret = mbedtls_md_update( &ctx, ssl->handshake->randbytes, 64 ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_update", ret );
goto exit;
}
if( ( ret = mbedtls_md_update( &ctx, data, data_len ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_update", ret );
goto exit;
}
if( ( ret = mbedtls_md_finish( &ctx, hash ) ) != 0 )
{
MBEDTLS_SSL_DEBUG_RET( 1, "mbedtls_md_finish", ret );
goto exit;
}
exit:
mbedtls_md_free( &ctx );
if( ret != 0 )
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_INTERNAL_ERROR );
return( ret );
}
#endif /* MBEDTLS_SSL_PROTO_TLS1 || MBEDTLS_SSL_PROTO_TLS1_1 || \
MBEDTLS_SSL_PROTO_TLS1_2 */
#endif /* MBEDTLS_SSL_TLS_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/ssl_tls.c | C | apache-2.0 | 321,547 |
/*
* Threading abstraction layer
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* Ensure gmtime_r is available even with -std=c99; must be defined before
* config.h, which pulls in glibc's features.h. Harmless on other platforms.
*/
#if !defined(_POSIX_C_SOURCE)
#define _POSIX_C_SOURCE 200112L
#endif
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_THREADING_C)
#include "mbedtls/threading.h"
#if defined(MBEDTLS_HAVE_TIME_DATE) && !defined(MBEDTLS_PLATFORM_GMTIME_R_ALT)
#if !defined(_WIN32) && (defined(unix) || \
defined(__unix) || defined(__unix__) || (defined(__APPLE__) && \
defined(__MACH__)))
#include <unistd.h>
#endif /* !_WIN32 && (unix || __unix || __unix__ ||
* (__APPLE__ && __MACH__)) */
#if !( ( defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L ) || \
( defined(_POSIX_THREAD_SAFE_FUNCTIONS ) && \
_POSIX_THREAD_SAFE_FUNCTIONS >= 20112L ) )
/*
* This is a convenience shorthand macro to avoid checking the long
* preprocessor conditions above. Ideally, we could expose this macro in
* platform_util.h and simply use it in platform_util.c, threading.c and
* threading.h. However, this macro is not part of the Mbed TLS public API, so
* we keep it private by only defining it in this file
*/
#if ! ( defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) )
#define THREADING_USE_GMTIME
#endif /* ! ( defined(_WIN32) && !defined(EFIX64) && !defined(EFI32) ) */
#endif /* !( ( defined(_POSIX_VERSION) && _POSIX_VERSION >= 200809L ) || \
( defined(_POSIX_THREAD_SAFE_FUNCTIONS ) && \
_POSIX_THREAD_SAFE_FUNCTIONS >= 20112L ) ) */
#endif /* MBEDTLS_HAVE_TIME_DATE && !MBEDTLS_PLATFORM_GMTIME_R_ALT */
#if defined(MBEDTLS_THREADING_PTHREAD)
static void threading_mutex_init_pthread( mbedtls_threading_mutex_t *mutex )
{
if( mutex == NULL )
return;
mutex->is_valid = pthread_mutex_init( &mutex->mutex, NULL ) == 0;
}
static void threading_mutex_free_pthread( mbedtls_threading_mutex_t *mutex )
{
if( mutex == NULL || !mutex->is_valid )
return;
(void) pthread_mutex_destroy( &mutex->mutex );
mutex->is_valid = 0;
}
static int threading_mutex_lock_pthread( mbedtls_threading_mutex_t *mutex )
{
if( mutex == NULL || ! mutex->is_valid )
return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
if( pthread_mutex_lock( &mutex->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
return( 0 );
}
static int threading_mutex_unlock_pthread( mbedtls_threading_mutex_t *mutex )
{
if( mutex == NULL || ! mutex->is_valid )
return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
if( pthread_mutex_unlock( &mutex->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
return( 0 );
}
void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t * ) = threading_mutex_init_pthread;
void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t * ) = threading_mutex_free_pthread;
int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_lock_pthread;
int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_unlock_pthread;
/*
* With phtreads we can statically initialize mutexes
*/
#define MUTEX_INIT = { PTHREAD_MUTEX_INITIALIZER, 1 }
#endif /* MBEDTLS_THREADING_PTHREAD */
#if defined(MBEDTLS_THREADING_ALT)
/* Modify for AliOS Things begin. 2019-01-09 */
#if 0
static int threading_mutex_fail( mbedtls_threading_mutex_t *mutex )
{
((void) mutex );
return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
}
static void threading_mutex_dummy( mbedtls_threading_mutex_t *mutex )
{
((void) mutex );
return;
}
void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t * ) = threading_mutex_dummy;
void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t * ) = threading_mutex_dummy;
int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_fail;
int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_fail;
#else
void (*mbedtls_mutex_init)( mbedtls_threading_mutex_t * ) = threading_mutex_init;
void (*mbedtls_mutex_free)( mbedtls_threading_mutex_t * ) = threading_mutex_free;
int (*mbedtls_mutex_lock)( mbedtls_threading_mutex_t * ) = threading_mutex_lock;
int (*mbedtls_mutex_unlock)( mbedtls_threading_mutex_t * ) = threading_mutex_unlock;
#endif
/* Modify for AliOS Things end. 2019-01-09 */
/*
* Set functions pointers and initialize global mutexes
*/
void mbedtls_threading_set_alt( void (*mutex_init)( mbedtls_threading_mutex_t * ),
void (*mutex_free)( mbedtls_threading_mutex_t * ),
int (*mutex_lock)( mbedtls_threading_mutex_t * ),
int (*mutex_unlock)( mbedtls_threading_mutex_t * ) )
{
mbedtls_mutex_init = mutex_init;
mbedtls_mutex_free = mutex_free;
mbedtls_mutex_lock = mutex_lock;
mbedtls_mutex_unlock = mutex_unlock;
#if defined(MBEDTLS_FS_IO)
mbedtls_mutex_init( &mbedtls_threading_readdir_mutex );
#endif
#if defined(THREADING_USE_GMTIME)
mbedtls_mutex_init( &mbedtls_threading_gmtime_mutex );
#endif
}
/*
* Free global mutexes
*/
void mbedtls_threading_free_alt( void )
{
#if defined(MBEDTLS_FS_IO)
mbedtls_mutex_free( &mbedtls_threading_readdir_mutex );
#endif
#if defined(THREADING_USE_GMTIME)
mbedtls_mutex_free( &mbedtls_threading_gmtime_mutex );
#endif
}
#endif /* MBEDTLS_THREADING_ALT */
/*
* Define global mutexes
*/
#ifndef MUTEX_INIT
#define MUTEX_INIT
#endif
#if defined(MBEDTLS_FS_IO)
mbedtls_threading_mutex_t mbedtls_threading_readdir_mutex MUTEX_INIT;
#endif
#if defined(THREADING_USE_GMTIME)
mbedtls_threading_mutex_t mbedtls_threading_gmtime_mutex MUTEX_INIT;
#endif
#endif /* MBEDTLS_THREADING_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/threading.c | C | apache-2.0 | 6,508 |
/*
* Portable interface to the CPU cycle counter
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif
#if defined(MBEDTLS_TIMING_C)
#include "mbedtls/timing.h"
#if !defined(MBEDTLS_TIMING_ALT)
/* Modify for AliOS Things begin. 2019-01-09 */
#if 0
#if !defined(unix) && !defined(__unix__) && !defined(__unix) && \
!defined(__APPLE__) && !defined(_WIN32) && !defined(__QNXNTO__) && \
!defined(__HAIKU__)
#error "This module only works on Unix and Windows, see MBEDTLS_TIMING_C in config.h"
#endif
#endif
/* Modify for AliOS Things end. 2019-01-09 */
#ifndef asm
#define asm __asm
#endif
#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
#include <windows.h>
#include <winbase.h>
#include <process.h>
struct _hr_time
{
LARGE_INTEGER start;
};
#else
#include <unistd.h>
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>
struct _hr_time
{
struct timeval start;
};
#endif /* _WIN32 && !EFIX64 && !EFI32 */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
( defined(_MSC_VER) && defined(_M_IX86) ) || defined(__WATCOMC__)
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long tsc;
__asm rdtsc
__asm mov [tsc], eax
return( tsc );
}
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
( _MSC_VER && _M_IX86 ) || __WATCOMC__ */
/* some versions of mingw-64 have 32-bit longs even on x84_64 */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
defined(__GNUC__) && ( defined(__i386__) || ( \
( defined(__amd64__) || defined( __x86_64__) ) && __SIZEOF_LONG__ == 4 ) )
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long lo, hi;
asm volatile( "rdtsc" : "=a" (lo), "=d" (hi) );
return( lo );
}
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
__GNUC__ && __i386__ */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
defined(__GNUC__) && ( defined(__amd64__) || defined(__x86_64__) )
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long lo, hi;
asm volatile( "rdtsc" : "=a" (lo), "=d" (hi) );
return( lo | ( hi << 32 ) );
}
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
__GNUC__ && ( __amd64__ || __x86_64__ ) */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
defined(__GNUC__) && ( defined(__powerpc__) || defined(__ppc__) )
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long tbl, tbu0, tbu1;
do
{
asm volatile( "mftbu %0" : "=r" (tbu0) );
asm volatile( "mftb %0" : "=r" (tbl ) );
asm volatile( "mftbu %0" : "=r" (tbu1) );
}
while( tbu0 != tbu1 );
return( tbl );
}
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
__GNUC__ && ( __powerpc__ || __ppc__ ) */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
defined(__GNUC__) && defined(__sparc64__)
#if defined(__OpenBSD__)
#warning OpenBSD does not allow access to tick register using software version instead
#else
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long tick;
asm volatile( "rdpr %%tick, %0;" : "=&r" (tick) );
return( tick );
}
#endif /* __OpenBSD__ */
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
__GNUC__ && __sparc64__ */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
defined(__GNUC__) && defined(__sparc__) && !defined(__sparc64__)
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long tick;
asm volatile( ".byte 0x83, 0x41, 0x00, 0x00" );
asm volatile( "mov %%g1, %0" : "=r" (tick) );
return( tick );
}
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
__GNUC__ && __sparc__ && !__sparc64__ */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
defined(__GNUC__) && defined(__alpha__)
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long cc;
asm volatile( "rpcc %0" : "=r" (cc) );
return( cc & 0xFFFFFFFF );
}
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
__GNUC__ && __alpha__ */
#if !defined(HAVE_HARDCLOCK) && defined(MBEDTLS_HAVE_ASM) && \
defined(__GNUC__) && defined(__ia64__)
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
unsigned long itc;
asm volatile( "mov %0 = ar.itc" : "=r" (itc) );
return( itc );
}
#endif /* !HAVE_HARDCLOCK && MBEDTLS_HAVE_ASM &&
__GNUC__ && __ia64__ */
#if !defined(HAVE_HARDCLOCK) && defined(_MSC_VER) && \
!defined(EFIX64) && !defined(EFI32)
#define HAVE_HARDCLOCK
unsigned long mbedtls_timing_hardclock( void )
{
LARGE_INTEGER offset;
QueryPerformanceCounter( &offset );
return( (unsigned long)( offset.QuadPart ) );
}
#endif /* !HAVE_HARDCLOCK && _MSC_VER && !EFIX64 && !EFI32 */
#if !defined(HAVE_HARDCLOCK)
#define HAVE_HARDCLOCK
static int hardclock_init = 0;
static struct timeval tv_init;
unsigned long mbedtls_timing_hardclock( void )
{
struct timeval tv_cur;
if( hardclock_init == 0 )
{
gettimeofday( &tv_init, NULL );
hardclock_init = 1;
}
gettimeofday( &tv_cur, NULL );
return( ( tv_cur.tv_sec - tv_init.tv_sec ) * 1000000
+ ( tv_cur.tv_usec - tv_init.tv_usec ) );
}
#endif /* !HAVE_HARDCLOCK */
volatile int mbedtls_timing_alarmed = 0;
#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
unsigned long mbedtls_timing_get_timer( struct mbedtls_timing_hr_time *val, int reset )
{
struct _hr_time *t = (struct _hr_time *) val;
if( reset )
{
QueryPerformanceCounter( &t->start );
return( 0 );
}
else
{
unsigned long delta;
LARGE_INTEGER now, hfreq;
QueryPerformanceCounter( &now );
QueryPerformanceFrequency( &hfreq );
delta = (unsigned long)( ( now.QuadPart - t->start.QuadPart ) * 1000ul
/ hfreq.QuadPart );
return( delta );
}
}
/* It's OK to use a global because alarm() is supposed to be global anyway */
static DWORD alarmMs;
static void TimerProc( void *TimerContext )
{
(void) TimerContext;
Sleep( alarmMs );
mbedtls_timing_alarmed = 1;
/* _endthread will be called implicitly on return
* That ensures execution of thread funcition's epilogue */
}
void mbedtls_set_alarm( int seconds )
{
if( seconds == 0 )
{
/* No need to create a thread for this simple case.
* Also, this shorcut is more reliable at least on MinGW32 */
mbedtls_timing_alarmed = 1;
return;
}
mbedtls_timing_alarmed = 0;
alarmMs = seconds * 1000;
(void) _beginthread( TimerProc, 0, NULL );
}
#else /* _WIN32 && !EFIX64 && !EFI32 */
unsigned long mbedtls_timing_get_timer( struct mbedtls_timing_hr_time *val, int reset )
{
struct _hr_time *t = (struct _hr_time *) val;
if( reset )
{
gettimeofday( &t->start, NULL );
return( 0 );
}
else
{
unsigned long delta;
struct timeval now;
gettimeofday( &now, NULL );
delta = ( now.tv_sec - t->start.tv_sec ) * 1000ul
+ ( now.tv_usec - t->start.tv_usec ) / 1000;
return( delta );
}
}
typedef void (*sighandler_t)(int);
sighandler_t signal(int signum, sighandler_t handler);
static void sighandler( int signum )
{
mbedtls_timing_alarmed = 1;
signal( signum, sighandler );
}
void mbedtls_set_alarm( int seconds )
{
#if defined (__CC_ARM) || (__ICCARM__)
#define SIGALRM 14
#else
#define SIGALRM 14
#endif
mbedtls_timing_alarmed = 0;
signal( SIGALRM, sighandler );
alarm( seconds );
if( seconds == 0 )
{
/* alarm(0) cancelled any previous pending alarm, but the
handler won't fire, so raise the flag straight away. */
mbedtls_timing_alarmed = 1;
}
}
#endif /* _WIN32 && !EFIX64 && !EFI32 */
/*
* Set delays to watch
*/
void mbedtls_timing_set_delay( void *data, uint32_t int_ms, uint32_t fin_ms )
{
mbedtls_timing_delay_context *ctx = (mbedtls_timing_delay_context *) data;
ctx->int_ms = int_ms;
ctx->fin_ms = fin_ms;
if( fin_ms != 0 )
(void) mbedtls_timing_get_timer( &ctx->timer, 1 );
}
/*
* Get number of delays expired
*/
int mbedtls_timing_get_delay( void *data )
{
mbedtls_timing_delay_context *ctx = (mbedtls_timing_delay_context *) data;
unsigned long elapsed_ms;
if( ctx->fin_ms == 0 )
return( -1 );
elapsed_ms = mbedtls_timing_get_timer( &ctx->timer, 0 );
if( elapsed_ms >= ctx->fin_ms )
return( 2 );
if( elapsed_ms >= ctx->int_ms )
return( 1 );
return( 0 );
}
#endif /* !MBEDTLS_TIMING_ALT */
#if defined(MBEDTLS_SELF_TEST)
/*
* Busy-waits for the given number of milliseconds.
* Used for testing mbedtls_timing_hardclock.
*/
static void busy_msleep( unsigned long msec )
{
struct mbedtls_timing_hr_time hires;
unsigned long i = 0; /* for busy-waiting */
volatile unsigned long j; /* to prevent optimisation */
(void) mbedtls_timing_get_timer( &hires, 1 );
while( mbedtls_timing_get_timer( &hires, 0 ) < msec )
i++;
j = i;
(void) j;
}
#define FAIL do \
{ \
if( verbose != 0 ) \
{ \
mbedtls_printf( "failed at line %d\n", __LINE__ ); \
mbedtls_printf( " cycles=%lu ratio=%lu millisecs=%lu secs=%lu hardfail=%d a=%lu b=%lu\n", \
cycles, ratio, millisecs, secs, hardfail, \
(unsigned long) a, (unsigned long) b ); \
mbedtls_printf( " elapsed(hires)=%lu elapsed(ctx)=%lu status(ctx)=%d\n", \
mbedtls_timing_get_timer( &hires, 0 ), \
mbedtls_timing_get_timer( &ctx.timer, 0 ), \
mbedtls_timing_get_delay( &ctx ) ); \
} \
return( 1 ); \
} while( 0 )
/*
* Checkup routine
*
* Warning: this is work in progress, some tests may not be reliable enough
* yet! False positives may happen.
*/
int mbedtls_timing_self_test( int verbose )
{
unsigned long cycles = 0, ratio = 0;
unsigned long millisecs = 0, secs = 0;
int hardfail = 0;
struct mbedtls_timing_hr_time hires;
uint32_t a = 0, b = 0;
mbedtls_timing_delay_context ctx;
if( verbose != 0 )
mbedtls_printf( " TIMING tests note: will take some time!\n" );
if( verbose != 0 )
mbedtls_printf( " TIMING test #1 (set_alarm / get_timer): " );
{
secs = 1;
(void) mbedtls_timing_get_timer( &hires, 1 );
mbedtls_set_alarm( (int) secs );
while( !mbedtls_timing_alarmed )
;
millisecs = mbedtls_timing_get_timer( &hires, 0 );
/* For some reason on Windows it looks like alarm has an extra delay
* (maybe related to creating a new thread). Allow some room here. */
if( millisecs < 800 * secs || millisecs > 1200 * secs + 300 )
FAIL;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
if( verbose != 0 )
mbedtls_printf( " TIMING test #2 (set/get_delay ): " );
{
a = 800;
b = 400;
mbedtls_timing_set_delay( &ctx, a, a + b ); /* T = 0 */
busy_msleep( a - a / 4 ); /* T = a - a/4 */
if( mbedtls_timing_get_delay( &ctx ) != 0 )
FAIL;
busy_msleep( a / 4 + b / 4 ); /* T = a + b/4 */
if( mbedtls_timing_get_delay( &ctx ) != 1 )
FAIL;
busy_msleep( b ); /* T = a + b + b/4 */
if( mbedtls_timing_get_delay( &ctx ) != 2 )
FAIL;
}
mbedtls_timing_set_delay( &ctx, 0, 0 );
busy_msleep( 200 );
if( mbedtls_timing_get_delay( &ctx ) != -1 )
FAIL;
if( verbose != 0 )
mbedtls_printf( "passed\n" );
if( verbose != 0 )
mbedtls_printf( " TIMING test #3 (hardclock / get_timer): " );
/*
* Allow one failure for possible counter wrapping.
* On a 4Ghz 32-bit machine the cycle counter wraps about once per second;
* since the whole test is about 10ms, it shouldn't happen twice in a row.
*/
hard_test:
if( hardfail > 1 )
{
if( verbose != 0 )
mbedtls_printf( "failed (ignored)\n" );
goto hard_test_done;
}
/* Get a reference ratio cycles/ms */
millisecs = 1;
cycles = mbedtls_timing_hardclock();
busy_msleep( millisecs );
cycles = mbedtls_timing_hardclock() - cycles;
ratio = cycles / millisecs;
/* Check that the ratio is mostly constant */
for( millisecs = 2; millisecs <= 4; millisecs++ )
{
cycles = mbedtls_timing_hardclock();
busy_msleep( millisecs );
cycles = mbedtls_timing_hardclock() - cycles;
/* Allow variation up to 20% */
if( cycles / millisecs < ratio - ratio / 5 ||
cycles / millisecs > ratio + ratio / 5 )
{
hardfail++;
goto hard_test;
}
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
hard_test_done:
if( verbose != 0 )
mbedtls_printf( "\n" );
return( 0 );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_TIMING_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/timing.c | C | apache-2.0 | 14,703 |
/*
* Version information
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_VERSION_C)
#include "mbedtls/version.h"
#include <string.h>
unsigned int mbedtls_version_get_number( void )
{
return( MBEDTLS_VERSION_NUMBER );
}
void mbedtls_version_get_string( char *string )
{
memcpy( string, MBEDTLS_VERSION_STRING,
sizeof( MBEDTLS_VERSION_STRING ) );
}
void mbedtls_version_get_string_full( char *string )
{
memcpy( string, MBEDTLS_VERSION_STRING_FULL,
sizeof( MBEDTLS_VERSION_STRING_FULL ) );
}
#endif /* MBEDTLS_VERSION_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/version.c | C | apache-2.0 | 1,374 |
/*
* Version feature information
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_VERSION_C)
#include "mbedtls/version.h"
#include <string.h>
static const char *features[] = {
#if defined(MBEDTLS_VERSION_FEATURES)
#if defined(MBEDTLS_HAVE_ASM)
"MBEDTLS_HAVE_ASM",
#endif /* MBEDTLS_HAVE_ASM */
#if defined(MBEDTLS_NO_UDBL_DIVISION)
"MBEDTLS_NO_UDBL_DIVISION",
#endif /* MBEDTLS_NO_UDBL_DIVISION */
#if defined(MBEDTLS_NO_64BIT_MULTIPLICATION)
"MBEDTLS_NO_64BIT_MULTIPLICATION",
#endif /* MBEDTLS_NO_64BIT_MULTIPLICATION */
#if defined(MBEDTLS_HAVE_SSE2)
"MBEDTLS_HAVE_SSE2",
#endif /* MBEDTLS_HAVE_SSE2 */
#if defined(MBEDTLS_HAVE_TIME)
"MBEDTLS_HAVE_TIME",
#endif /* MBEDTLS_HAVE_TIME */
#if defined(MBEDTLS_HAVE_TIME_DATE)
"MBEDTLS_HAVE_TIME_DATE",
#endif /* MBEDTLS_HAVE_TIME_DATE */
#if defined(MBEDTLS_PLATFORM_MEMORY)
"MBEDTLS_PLATFORM_MEMORY",
#endif /* MBEDTLS_PLATFORM_MEMORY */
#if defined(MBEDTLS_PLATFORM_NO_STD_FUNCTIONS)
"MBEDTLS_PLATFORM_NO_STD_FUNCTIONS",
#endif /* MBEDTLS_PLATFORM_NO_STD_FUNCTIONS */
#if defined(MBEDTLS_PLATFORM_EXIT_ALT)
"MBEDTLS_PLATFORM_EXIT_ALT",
#endif /* MBEDTLS_PLATFORM_EXIT_ALT */
#if defined(MBEDTLS_PLATFORM_TIME_ALT)
"MBEDTLS_PLATFORM_TIME_ALT",
#endif /* MBEDTLS_PLATFORM_TIME_ALT */
#if defined(MBEDTLS_PLATFORM_FPRINTF_ALT)
"MBEDTLS_PLATFORM_FPRINTF_ALT",
#endif /* MBEDTLS_PLATFORM_FPRINTF_ALT */
#if defined(MBEDTLS_PLATFORM_PRINTF_ALT)
"MBEDTLS_PLATFORM_PRINTF_ALT",
#endif /* MBEDTLS_PLATFORM_PRINTF_ALT */
#if defined(MBEDTLS_PLATFORM_SNPRINTF_ALT)
"MBEDTLS_PLATFORM_SNPRINTF_ALT",
#endif /* MBEDTLS_PLATFORM_SNPRINTF_ALT */
#if defined(MBEDTLS_PLATFORM_NV_SEED_ALT)
"MBEDTLS_PLATFORM_NV_SEED_ALT",
#endif /* MBEDTLS_PLATFORM_NV_SEED_ALT */
#if defined(MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT)
"MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT",
#endif /* MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT */
#if defined(MBEDTLS_DEPRECATED_WARNING)
"MBEDTLS_DEPRECATED_WARNING",
#endif /* MBEDTLS_DEPRECATED_WARNING */
#if defined(MBEDTLS_DEPRECATED_REMOVED)
"MBEDTLS_DEPRECATED_REMOVED",
#endif /* MBEDTLS_DEPRECATED_REMOVED */
#if defined(MBEDTLS_CHECK_PARAMS)
"MBEDTLS_CHECK_PARAMS",
#endif /* MBEDTLS_CHECK_PARAMS */
#if defined(MBEDTLS_TIMING_ALT)
"MBEDTLS_TIMING_ALT",
#endif /* MBEDTLS_TIMING_ALT */
#if defined(MBEDTLS_AES_ALT)
"MBEDTLS_AES_ALT",
#endif /* MBEDTLS_AES_ALT */
#if defined(MBEDTLS_ARC4_ALT)
"MBEDTLS_ARC4_ALT",
#endif /* MBEDTLS_ARC4_ALT */
#if defined(MBEDTLS_ARIA_ALT)
"MBEDTLS_ARIA_ALT",
#endif /* MBEDTLS_ARIA_ALT */
#if defined(MBEDTLS_BLOWFISH_ALT)
"MBEDTLS_BLOWFISH_ALT",
#endif /* MBEDTLS_BLOWFISH_ALT */
#if defined(MBEDTLS_CAMELLIA_ALT)
"MBEDTLS_CAMELLIA_ALT",
#endif /* MBEDTLS_CAMELLIA_ALT */
#if defined(MBEDTLS_CCM_ALT)
"MBEDTLS_CCM_ALT",
#endif /* MBEDTLS_CCM_ALT */
#if defined(MBEDTLS_CHACHA20_ALT)
"MBEDTLS_CHACHA20_ALT",
#endif /* MBEDTLS_CHACHA20_ALT */
#if defined(MBEDTLS_CHACHAPOLY_ALT)
"MBEDTLS_CHACHAPOLY_ALT",
#endif /* MBEDTLS_CHACHAPOLY_ALT */
#if defined(MBEDTLS_CMAC_ALT)
"MBEDTLS_CMAC_ALT",
#endif /* MBEDTLS_CMAC_ALT */
#if defined(MBEDTLS_DES_ALT)
"MBEDTLS_DES_ALT",
#endif /* MBEDTLS_DES_ALT */
#if defined(MBEDTLS_DHM_ALT)
"MBEDTLS_DHM_ALT",
#endif /* MBEDTLS_DHM_ALT */
#if defined(MBEDTLS_ECJPAKE_ALT)
"MBEDTLS_ECJPAKE_ALT",
#endif /* MBEDTLS_ECJPAKE_ALT */
#if defined(MBEDTLS_GCM_ALT)
"MBEDTLS_GCM_ALT",
#endif /* MBEDTLS_GCM_ALT */
#if defined(MBEDTLS_NIST_KW_ALT)
"MBEDTLS_NIST_KW_ALT",
#endif /* MBEDTLS_NIST_KW_ALT */
#if defined(MBEDTLS_MD2_ALT)
"MBEDTLS_MD2_ALT",
#endif /* MBEDTLS_MD2_ALT */
#if defined(MBEDTLS_MD4_ALT)
"MBEDTLS_MD4_ALT",
#endif /* MBEDTLS_MD4_ALT */
#if defined(MBEDTLS_MD5_ALT)
"MBEDTLS_MD5_ALT",
#endif /* MBEDTLS_MD5_ALT */
#if defined(MBEDTLS_POLY1305_ALT)
"MBEDTLS_POLY1305_ALT",
#endif /* MBEDTLS_POLY1305_ALT */
#if defined(MBEDTLS_RIPEMD160_ALT)
"MBEDTLS_RIPEMD160_ALT",
#endif /* MBEDTLS_RIPEMD160_ALT */
#if defined(MBEDTLS_RSA_ALT)
"MBEDTLS_RSA_ALT",
#endif /* MBEDTLS_RSA_ALT */
#if defined(MBEDTLS_SHA1_ALT)
"MBEDTLS_SHA1_ALT",
#endif /* MBEDTLS_SHA1_ALT */
#if defined(MBEDTLS_SHA256_ALT)
"MBEDTLS_SHA256_ALT",
#endif /* MBEDTLS_SHA256_ALT */
#if defined(MBEDTLS_SHA512_ALT)
"MBEDTLS_SHA512_ALT",
#endif /* MBEDTLS_SHA512_ALT */
#if defined(MBEDTLS_XTEA_ALT)
"MBEDTLS_XTEA_ALT",
#endif /* MBEDTLS_XTEA_ALT */
#if defined(MBEDTLS_ECP_ALT)
"MBEDTLS_ECP_ALT",
#endif /* MBEDTLS_ECP_ALT */
#if defined(MBEDTLS_MD2_PROCESS_ALT)
"MBEDTLS_MD2_PROCESS_ALT",
#endif /* MBEDTLS_MD2_PROCESS_ALT */
#if defined(MBEDTLS_MD4_PROCESS_ALT)
"MBEDTLS_MD4_PROCESS_ALT",
#endif /* MBEDTLS_MD4_PROCESS_ALT */
#if defined(MBEDTLS_MD5_PROCESS_ALT)
"MBEDTLS_MD5_PROCESS_ALT",
#endif /* MBEDTLS_MD5_PROCESS_ALT */
#if defined(MBEDTLS_RIPEMD160_PROCESS_ALT)
"MBEDTLS_RIPEMD160_PROCESS_ALT",
#endif /* MBEDTLS_RIPEMD160_PROCESS_ALT */
#if defined(MBEDTLS_SHA1_PROCESS_ALT)
"MBEDTLS_SHA1_PROCESS_ALT",
#endif /* MBEDTLS_SHA1_PROCESS_ALT */
#if defined(MBEDTLS_SHA256_PROCESS_ALT)
"MBEDTLS_SHA256_PROCESS_ALT",
#endif /* MBEDTLS_SHA256_PROCESS_ALT */
#if defined(MBEDTLS_SHA512_PROCESS_ALT)
"MBEDTLS_SHA512_PROCESS_ALT",
#endif /* MBEDTLS_SHA512_PROCESS_ALT */
#if defined(MBEDTLS_DES_SETKEY_ALT)
"MBEDTLS_DES_SETKEY_ALT",
#endif /* MBEDTLS_DES_SETKEY_ALT */
#if defined(MBEDTLS_DES_CRYPT_ECB_ALT)
"MBEDTLS_DES_CRYPT_ECB_ALT",
#endif /* MBEDTLS_DES_CRYPT_ECB_ALT */
#if defined(MBEDTLS_DES3_CRYPT_ECB_ALT)
"MBEDTLS_DES3_CRYPT_ECB_ALT",
#endif /* MBEDTLS_DES3_CRYPT_ECB_ALT */
#if defined(MBEDTLS_AES_SETKEY_ENC_ALT)
"MBEDTLS_AES_SETKEY_ENC_ALT",
#endif /* MBEDTLS_AES_SETKEY_ENC_ALT */
#if defined(MBEDTLS_AES_SETKEY_DEC_ALT)
"MBEDTLS_AES_SETKEY_DEC_ALT",
#endif /* MBEDTLS_AES_SETKEY_DEC_ALT */
#if defined(MBEDTLS_AES_ENCRYPT_ALT)
"MBEDTLS_AES_ENCRYPT_ALT",
#endif /* MBEDTLS_AES_ENCRYPT_ALT */
#if defined(MBEDTLS_AES_DECRYPT_ALT)
"MBEDTLS_AES_DECRYPT_ALT",
#endif /* MBEDTLS_AES_DECRYPT_ALT */
#if defined(MBEDTLS_ECDH_GEN_PUBLIC_ALT)
"MBEDTLS_ECDH_GEN_PUBLIC_ALT",
#endif /* MBEDTLS_ECDH_GEN_PUBLIC_ALT */
#if defined(MBEDTLS_ECDH_COMPUTE_SHARED_ALT)
"MBEDTLS_ECDH_COMPUTE_SHARED_ALT",
#endif /* MBEDTLS_ECDH_COMPUTE_SHARED_ALT */
#if defined(MBEDTLS_ECDSA_VERIFY_ALT)
"MBEDTLS_ECDSA_VERIFY_ALT",
#endif /* MBEDTLS_ECDSA_VERIFY_ALT */
#if defined(MBEDTLS_ECDSA_SIGN_ALT)
"MBEDTLS_ECDSA_SIGN_ALT",
#endif /* MBEDTLS_ECDSA_SIGN_ALT */
#if defined(MBEDTLS_ECDSA_GENKEY_ALT)
"MBEDTLS_ECDSA_GENKEY_ALT",
#endif /* MBEDTLS_ECDSA_GENKEY_ALT */
#if defined(MBEDTLS_ECP_INTERNAL_ALT)
"MBEDTLS_ECP_INTERNAL_ALT",
#endif /* MBEDTLS_ECP_INTERNAL_ALT */
#if defined(MBEDTLS_ECP_RANDOMIZE_JAC_ALT)
"MBEDTLS_ECP_RANDOMIZE_JAC_ALT",
#endif /* MBEDTLS_ECP_RANDOMIZE_JAC_ALT */
#if defined(MBEDTLS_ECP_ADD_MIXED_ALT)
"MBEDTLS_ECP_ADD_MIXED_ALT",
#endif /* MBEDTLS_ECP_ADD_MIXED_ALT */
#if defined(MBEDTLS_ECP_DOUBLE_JAC_ALT)
"MBEDTLS_ECP_DOUBLE_JAC_ALT",
#endif /* MBEDTLS_ECP_DOUBLE_JAC_ALT */
#if defined(MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT)
"MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT",
#endif /* MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT */
#if defined(MBEDTLS_ECP_NORMALIZE_JAC_ALT)
"MBEDTLS_ECP_NORMALIZE_JAC_ALT",
#endif /* MBEDTLS_ECP_NORMALIZE_JAC_ALT */
#if defined(MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT)
"MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT",
#endif /* MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT */
#if defined(MBEDTLS_ECP_RANDOMIZE_MXZ_ALT)
"MBEDTLS_ECP_RANDOMIZE_MXZ_ALT",
#endif /* MBEDTLS_ECP_RANDOMIZE_MXZ_ALT */
#if defined(MBEDTLS_ECP_NORMALIZE_MXZ_ALT)
"MBEDTLS_ECP_NORMALIZE_MXZ_ALT",
#endif /* MBEDTLS_ECP_NORMALIZE_MXZ_ALT */
#if defined(MBEDTLS_TEST_NULL_ENTROPY)
"MBEDTLS_TEST_NULL_ENTROPY",
#endif /* MBEDTLS_TEST_NULL_ENTROPY */
#if defined(MBEDTLS_ENTROPY_HARDWARE_ALT)
"MBEDTLS_ENTROPY_HARDWARE_ALT",
#endif /* MBEDTLS_ENTROPY_HARDWARE_ALT */
#if defined(MBEDTLS_AES_ROM_TABLES)
"MBEDTLS_AES_ROM_TABLES",
#endif /* MBEDTLS_AES_ROM_TABLES */
#if defined(MBEDTLS_AES_FEWER_TABLES)
"MBEDTLS_AES_FEWER_TABLES",
#endif /* MBEDTLS_AES_FEWER_TABLES */
#if defined(MBEDTLS_CAMELLIA_SMALL_MEMORY)
"MBEDTLS_CAMELLIA_SMALL_MEMORY",
#endif /* MBEDTLS_CAMELLIA_SMALL_MEMORY */
#if defined(MBEDTLS_CIPHER_MODE_CBC)
"MBEDTLS_CIPHER_MODE_CBC",
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_CIPHER_MODE_CFB)
"MBEDTLS_CIPHER_MODE_CFB",
#endif /* MBEDTLS_CIPHER_MODE_CFB */
#if defined(MBEDTLS_CIPHER_MODE_CTR)
"MBEDTLS_CIPHER_MODE_CTR",
#endif /* MBEDTLS_CIPHER_MODE_CTR */
#if defined(MBEDTLS_CIPHER_MODE_OFB)
"MBEDTLS_CIPHER_MODE_OFB",
#endif /* MBEDTLS_CIPHER_MODE_OFB */
#if defined(MBEDTLS_CIPHER_MODE_XTS)
"MBEDTLS_CIPHER_MODE_XTS",
#endif /* MBEDTLS_CIPHER_MODE_XTS */
#if defined(MBEDTLS_CIPHER_NULL_CIPHER)
"MBEDTLS_CIPHER_NULL_CIPHER",
#endif /* MBEDTLS_CIPHER_NULL_CIPHER */
#if defined(MBEDTLS_CIPHER_PADDING_PKCS7)
"MBEDTLS_CIPHER_PADDING_PKCS7",
#endif /* MBEDTLS_CIPHER_PADDING_PKCS7 */
#if defined(MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS)
"MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS",
#endif /* MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS */
#if defined(MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN)
"MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN",
#endif /* MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN */
#if defined(MBEDTLS_CIPHER_PADDING_ZEROS)
"MBEDTLS_CIPHER_PADDING_ZEROS",
#endif /* MBEDTLS_CIPHER_PADDING_ZEROS */
#if defined(MBEDTLS_ENABLE_WEAK_CIPHERSUITES)
"MBEDTLS_ENABLE_WEAK_CIPHERSUITES",
#endif /* MBEDTLS_ENABLE_WEAK_CIPHERSUITES */
#if defined(MBEDTLS_REMOVE_ARC4_CIPHERSUITES)
"MBEDTLS_REMOVE_ARC4_CIPHERSUITES",
#endif /* MBEDTLS_REMOVE_ARC4_CIPHERSUITES */
#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
"MBEDTLS_ECP_DP_SECP192R1_ENABLED",
#endif /* MBEDTLS_ECP_DP_SECP192R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
"MBEDTLS_ECP_DP_SECP224R1_ENABLED",
#endif /* MBEDTLS_ECP_DP_SECP224R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
"MBEDTLS_ECP_DP_SECP256R1_ENABLED",
#endif /* MBEDTLS_ECP_DP_SECP256R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
"MBEDTLS_ECP_DP_SECP384R1_ENABLED",
#endif /* MBEDTLS_ECP_DP_SECP384R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
"MBEDTLS_ECP_DP_SECP521R1_ENABLED",
#endif /* MBEDTLS_ECP_DP_SECP521R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
"MBEDTLS_ECP_DP_SECP192K1_ENABLED",
#endif /* MBEDTLS_ECP_DP_SECP192K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
"MBEDTLS_ECP_DP_SECP224K1_ENABLED",
#endif /* MBEDTLS_ECP_DP_SECP224K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
"MBEDTLS_ECP_DP_SECP256K1_ENABLED",
#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP256R1_ENABLED)
"MBEDTLS_ECP_DP_BP256R1_ENABLED",
#endif /* MBEDTLS_ECP_DP_BP256R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP384R1_ENABLED)
"MBEDTLS_ECP_DP_BP384R1_ENABLED",
#endif /* MBEDTLS_ECP_DP_BP384R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_BP512R1_ENABLED)
"MBEDTLS_ECP_DP_BP512R1_ENABLED",
#endif /* MBEDTLS_ECP_DP_BP512R1_ENABLED */
#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
"MBEDTLS_ECP_DP_CURVE25519_ENABLED",
#endif /* MBEDTLS_ECP_DP_CURVE25519_ENABLED */
#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
"MBEDTLS_ECP_DP_CURVE448_ENABLED",
#endif /* MBEDTLS_ECP_DP_CURVE448_ENABLED */
#if defined(MBEDTLS_ECP_NIST_OPTIM)
"MBEDTLS_ECP_NIST_OPTIM",
#endif /* MBEDTLS_ECP_NIST_OPTIM */
#if defined(MBEDTLS_ECP_RESTARTABLE)
"MBEDTLS_ECP_RESTARTABLE",
#endif /* MBEDTLS_ECP_RESTARTABLE */
#if defined(MBEDTLS_ECDSA_DETERMINISTIC)
"MBEDTLS_ECDSA_DETERMINISTIC",
#endif /* MBEDTLS_ECDSA_DETERMINISTIC */
#if defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED)
"MBEDTLS_KEY_EXCHANGE_PSK_ENABLED",
#endif /* MBEDTLS_KEY_EXCHANGE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED)
"MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED",
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED)
"MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED",
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED)
"MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED",
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED)
"MBEDTLS_KEY_EXCHANGE_RSA_ENABLED",
#endif /* MBEDTLS_KEY_EXCHANGE_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED)
"MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED",
#endif /* MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED)
"MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED",
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
"MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED",
#endif /* MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)
"MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED",
#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED)
"MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED",
#endif /* MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED)
"MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED",
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_PK_PARSE_EC_EXTENDED)
"MBEDTLS_PK_PARSE_EC_EXTENDED",
#endif /* MBEDTLS_PK_PARSE_EC_EXTENDED */
#if defined(MBEDTLS_ERROR_STRERROR_DUMMY)
"MBEDTLS_ERROR_STRERROR_DUMMY",
#endif /* MBEDTLS_ERROR_STRERROR_DUMMY */
#if defined(MBEDTLS_GENPRIME)
"MBEDTLS_GENPRIME",
#endif /* MBEDTLS_GENPRIME */
#if defined(MBEDTLS_FS_IO)
"MBEDTLS_FS_IO",
#endif /* MBEDTLS_FS_IO */
#if defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES)
"MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES",
#endif /* MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES */
#if defined(MBEDTLS_NO_PLATFORM_ENTROPY)
"MBEDTLS_NO_PLATFORM_ENTROPY",
#endif /* MBEDTLS_NO_PLATFORM_ENTROPY */
#if defined(MBEDTLS_ENTROPY_FORCE_SHA256)
"MBEDTLS_ENTROPY_FORCE_SHA256",
#endif /* MBEDTLS_ENTROPY_FORCE_SHA256 */
#if defined(MBEDTLS_ENTROPY_NV_SEED)
"MBEDTLS_ENTROPY_NV_SEED",
#endif /* MBEDTLS_ENTROPY_NV_SEED */
#if defined(MBEDTLS_MEMORY_DEBUG)
"MBEDTLS_MEMORY_DEBUG",
#endif /* MBEDTLS_MEMORY_DEBUG */
#if defined(MBEDTLS_MEMORY_BACKTRACE)
"MBEDTLS_MEMORY_BACKTRACE",
#endif /* MBEDTLS_MEMORY_BACKTRACE */
#if defined(MBEDTLS_PK_RSA_ALT_SUPPORT)
"MBEDTLS_PK_RSA_ALT_SUPPORT",
#endif /* MBEDTLS_PK_RSA_ALT_SUPPORT */
#if defined(MBEDTLS_PKCS1_V15)
"MBEDTLS_PKCS1_V15",
#endif /* MBEDTLS_PKCS1_V15 */
#if defined(MBEDTLS_PKCS1_V21)
"MBEDTLS_PKCS1_V21",
#endif /* MBEDTLS_PKCS1_V21 */
#if defined(MBEDTLS_RSA_NO_CRT)
"MBEDTLS_RSA_NO_CRT",
#endif /* MBEDTLS_RSA_NO_CRT */
#if defined(MBEDTLS_SELF_TEST)
"MBEDTLS_SELF_TEST",
#endif /* MBEDTLS_SELF_TEST */
#if defined(MBEDTLS_SHA256_SMALLER)
"MBEDTLS_SHA256_SMALLER",
#endif /* MBEDTLS_SHA256_SMALLER */
#if defined(MBEDTLS_SSL_ALL_ALERT_MESSAGES)
"MBEDTLS_SSL_ALL_ALERT_MESSAGES",
#endif /* MBEDTLS_SSL_ALL_ALERT_MESSAGES */
#if defined(MBEDTLS_SSL_ASYNC_PRIVATE)
"MBEDTLS_SSL_ASYNC_PRIVATE",
#endif /* MBEDTLS_SSL_ASYNC_PRIVATE */
#if defined(MBEDTLS_SSL_DEBUG_ALL)
"MBEDTLS_SSL_DEBUG_ALL",
#endif /* MBEDTLS_SSL_DEBUG_ALL */
#if defined(MBEDTLS_SSL_ENCRYPT_THEN_MAC)
"MBEDTLS_SSL_ENCRYPT_THEN_MAC",
#endif /* MBEDTLS_SSL_ENCRYPT_THEN_MAC */
#if defined(MBEDTLS_SSL_EXTENDED_MASTER_SECRET)
"MBEDTLS_SSL_EXTENDED_MASTER_SECRET",
#endif /* MBEDTLS_SSL_EXTENDED_MASTER_SECRET */
#if defined(MBEDTLS_SSL_FALLBACK_SCSV)
"MBEDTLS_SSL_FALLBACK_SCSV",
#endif /* MBEDTLS_SSL_FALLBACK_SCSV */
#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
"MBEDTLS_SSL_HW_RECORD_ACCEL",
#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
#if defined(MBEDTLS_SSL_CBC_RECORD_SPLITTING)
"MBEDTLS_SSL_CBC_RECORD_SPLITTING",
#endif /* MBEDTLS_SSL_CBC_RECORD_SPLITTING */
#if defined(MBEDTLS_SSL_RENEGOTIATION)
"MBEDTLS_SSL_RENEGOTIATION",
#endif /* MBEDTLS_SSL_RENEGOTIATION */
#if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO)
"MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO",
#endif /* MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO */
#if defined(MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE)
"MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE",
#endif /* MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE */
#if defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH)
"MBEDTLS_SSL_MAX_FRAGMENT_LENGTH",
#endif /* MBEDTLS_SSL_MAX_FRAGMENT_LENGTH */
#if defined(MBEDTLS_SSL_PROTO_SSL3)
"MBEDTLS_SSL_PROTO_SSL3",
#endif /* MBEDTLS_SSL_PROTO_SSL3 */
#if defined(MBEDTLS_SSL_PROTO_TLS1)
"MBEDTLS_SSL_PROTO_TLS1",
#endif /* MBEDTLS_SSL_PROTO_TLS1 */
#if defined(MBEDTLS_SSL_PROTO_TLS1_1)
"MBEDTLS_SSL_PROTO_TLS1_1",
#endif /* MBEDTLS_SSL_PROTO_TLS1_1 */
#if defined(MBEDTLS_SSL_PROTO_TLS1_2)
"MBEDTLS_SSL_PROTO_TLS1_2",
#endif /* MBEDTLS_SSL_PROTO_TLS1_2 */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
"MBEDTLS_SSL_PROTO_DTLS",
#endif /* MBEDTLS_SSL_PROTO_DTLS */
#if defined(MBEDTLS_SSL_ALPN)
"MBEDTLS_SSL_ALPN",
#endif /* MBEDTLS_SSL_ALPN */
#if defined(MBEDTLS_SSL_DTLS_ANTI_REPLAY)
"MBEDTLS_SSL_DTLS_ANTI_REPLAY",
#endif /* MBEDTLS_SSL_DTLS_ANTI_REPLAY */
#if defined(MBEDTLS_SSL_DTLS_HELLO_VERIFY)
"MBEDTLS_SSL_DTLS_HELLO_VERIFY",
#endif /* MBEDTLS_SSL_DTLS_HELLO_VERIFY */
#if defined(MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE)
"MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE",
#endif /* MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE */
#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT)
"MBEDTLS_SSL_DTLS_BADMAC_LIMIT",
#endif /* MBEDTLS_SSL_DTLS_BADMAC_LIMIT */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
"MBEDTLS_SSL_SESSION_TICKETS",
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
#if defined(MBEDTLS_SSL_EXPORT_KEYS)
"MBEDTLS_SSL_EXPORT_KEYS",
#endif /* MBEDTLS_SSL_EXPORT_KEYS */
#if defined(MBEDTLS_SSL_SERVER_NAME_INDICATION)
"MBEDTLS_SSL_SERVER_NAME_INDICATION",
#endif /* MBEDTLS_SSL_SERVER_NAME_INDICATION */
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC)
"MBEDTLS_SSL_TRUNCATED_HMAC",
#endif /* MBEDTLS_SSL_TRUNCATED_HMAC */
#if defined(MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT)
"MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT",
#endif /* MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT */
#if defined(MBEDTLS_THREADING_ALT)
"MBEDTLS_THREADING_ALT",
#endif /* MBEDTLS_THREADING_ALT */
#if defined(MBEDTLS_THREADING_PTHREAD)
"MBEDTLS_THREADING_PTHREAD",
#endif /* MBEDTLS_THREADING_PTHREAD */
#if defined(MBEDTLS_VERSION_FEATURES)
"MBEDTLS_VERSION_FEATURES",
#endif /* MBEDTLS_VERSION_FEATURES */
#if defined(MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3)
"MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3",
#endif /* MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 */
#if defined(MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION)
"MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION",
#endif /* MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION */
#if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
"MBEDTLS_X509_CHECK_KEY_USAGE",
#endif /* MBEDTLS_X509_CHECK_KEY_USAGE */
#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE)
"MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE",
#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */
#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
"MBEDTLS_X509_RSASSA_PSS_SUPPORT",
#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */
#if defined(MBEDTLS_ZLIB_SUPPORT)
"MBEDTLS_ZLIB_SUPPORT",
#endif /* MBEDTLS_ZLIB_SUPPORT */
#if defined(MBEDTLS_AESNI_C)
"MBEDTLS_AESNI_C",
#endif /* MBEDTLS_AESNI_C */
#if defined(MBEDTLS_AES_C)
"MBEDTLS_AES_C",
#endif /* MBEDTLS_AES_C */
#if defined(MBEDTLS_ARC4_C)
"MBEDTLS_ARC4_C",
#endif /* MBEDTLS_ARC4_C */
#if defined(MBEDTLS_ASN1_PARSE_C)
"MBEDTLS_ASN1_PARSE_C",
#endif /* MBEDTLS_ASN1_PARSE_C */
#if defined(MBEDTLS_ASN1_WRITE_C)
"MBEDTLS_ASN1_WRITE_C",
#endif /* MBEDTLS_ASN1_WRITE_C */
#if defined(MBEDTLS_BASE64_C)
"MBEDTLS_BASE64_C",
#endif /* MBEDTLS_BASE64_C */
#if defined(MBEDTLS_BIGNUM_C)
"MBEDTLS_BIGNUM_C",
#endif /* MBEDTLS_BIGNUM_C */
#if defined(MBEDTLS_BLOWFISH_C)
"MBEDTLS_BLOWFISH_C",
#endif /* MBEDTLS_BLOWFISH_C */
#if defined(MBEDTLS_CAMELLIA_C)
"MBEDTLS_CAMELLIA_C",
#endif /* MBEDTLS_CAMELLIA_C */
#if defined(MBEDTLS_ARIA_C)
"MBEDTLS_ARIA_C",
#endif /* MBEDTLS_ARIA_C */
#if defined(MBEDTLS_CCM_C)
"MBEDTLS_CCM_C",
#endif /* MBEDTLS_CCM_C */
#if defined(MBEDTLS_CERTS_C)
"MBEDTLS_CERTS_C",
#endif /* MBEDTLS_CERTS_C */
#if defined(MBEDTLS_CHACHA20_C)
"MBEDTLS_CHACHA20_C",
#endif /* MBEDTLS_CHACHA20_C */
#if defined(MBEDTLS_CHACHAPOLY_C)
"MBEDTLS_CHACHAPOLY_C",
#endif /* MBEDTLS_CHACHAPOLY_C */
#if defined(MBEDTLS_CIPHER_C)
"MBEDTLS_CIPHER_C",
#endif /* MBEDTLS_CIPHER_C */
#if defined(MBEDTLS_CMAC_C)
"MBEDTLS_CMAC_C",
#endif /* MBEDTLS_CMAC_C */
#if defined(MBEDTLS_CTR_DRBG_C)
"MBEDTLS_CTR_DRBG_C",
#endif /* MBEDTLS_CTR_DRBG_C */
#if defined(MBEDTLS_DEBUG_C)
"MBEDTLS_DEBUG_C",
#endif /* MBEDTLS_DEBUG_C */
#if defined(MBEDTLS_DES_C)
"MBEDTLS_DES_C",
#endif /* MBEDTLS_DES_C */
#if defined(MBEDTLS_DHM_C)
"MBEDTLS_DHM_C",
#endif /* MBEDTLS_DHM_C */
#if defined(MBEDTLS_ECDH_C)
"MBEDTLS_ECDH_C",
#endif /* MBEDTLS_ECDH_C */
#if defined(MBEDTLS_ECDSA_C)
"MBEDTLS_ECDSA_C",
#endif /* MBEDTLS_ECDSA_C */
#if defined(MBEDTLS_ECJPAKE_C)
"MBEDTLS_ECJPAKE_C",
#endif /* MBEDTLS_ECJPAKE_C */
#if defined(MBEDTLS_ECP_C)
"MBEDTLS_ECP_C",
#endif /* MBEDTLS_ECP_C */
#if defined(MBEDTLS_ENTROPY_C)
"MBEDTLS_ENTROPY_C",
#endif /* MBEDTLS_ENTROPY_C */
#if defined(MBEDTLS_ERROR_C)
"MBEDTLS_ERROR_C",
#endif /* MBEDTLS_ERROR_C */
#if defined(MBEDTLS_GCM_C)
"MBEDTLS_GCM_C",
#endif /* MBEDTLS_GCM_C */
#if defined(MBEDTLS_HAVEGE_C)
"MBEDTLS_HAVEGE_C",
#endif /* MBEDTLS_HAVEGE_C */
#if defined(MBEDTLS_HKDF_C)
"MBEDTLS_HKDF_C",
#endif /* MBEDTLS_HKDF_C */
#if defined(MBEDTLS_HMAC_DRBG_C)
"MBEDTLS_HMAC_DRBG_C",
#endif /* MBEDTLS_HMAC_DRBG_C */
#if defined(MBEDTLS_NIST_KW_C)
"MBEDTLS_NIST_KW_C",
#endif /* MBEDTLS_NIST_KW_C */
#if defined(MBEDTLS_MD_C)
"MBEDTLS_MD_C",
#endif /* MBEDTLS_MD_C */
#if defined(MBEDTLS_MD2_C)
"MBEDTLS_MD2_C",
#endif /* MBEDTLS_MD2_C */
#if defined(MBEDTLS_MD4_C)
"MBEDTLS_MD4_C",
#endif /* MBEDTLS_MD4_C */
#if defined(MBEDTLS_MD5_C)
"MBEDTLS_MD5_C",
#endif /* MBEDTLS_MD5_C */
#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
"MBEDTLS_MEMORY_BUFFER_ALLOC_C",
#endif /* MBEDTLS_MEMORY_BUFFER_ALLOC_C */
#if defined(MBEDTLS_NET_C)
"MBEDTLS_NET_C",
#endif /* MBEDTLS_NET_C */
#if defined(MBEDTLS_OID_C)
"MBEDTLS_OID_C",
#endif /* MBEDTLS_OID_C */
#if defined(MBEDTLS_PADLOCK_C)
"MBEDTLS_PADLOCK_C",
#endif /* MBEDTLS_PADLOCK_C */
#if defined(MBEDTLS_PEM_PARSE_C)
"MBEDTLS_PEM_PARSE_C",
#endif /* MBEDTLS_PEM_PARSE_C */
#if defined(MBEDTLS_PEM_WRITE_C)
"MBEDTLS_PEM_WRITE_C",
#endif /* MBEDTLS_PEM_WRITE_C */
#if defined(MBEDTLS_PK_C)
"MBEDTLS_PK_C",
#endif /* MBEDTLS_PK_C */
#if defined(MBEDTLS_PK_PARSE_C)
"MBEDTLS_PK_PARSE_C",
#endif /* MBEDTLS_PK_PARSE_C */
#if defined(MBEDTLS_PK_WRITE_C)
"MBEDTLS_PK_WRITE_C",
#endif /* MBEDTLS_PK_WRITE_C */
#if defined(MBEDTLS_PKCS5_C)
"MBEDTLS_PKCS5_C",
#endif /* MBEDTLS_PKCS5_C */
#if defined(MBEDTLS_PKCS11_C)
"MBEDTLS_PKCS11_C",
#endif /* MBEDTLS_PKCS11_C */
#if defined(MBEDTLS_PKCS12_C)
"MBEDTLS_PKCS12_C",
#endif /* MBEDTLS_PKCS12_C */
#if defined(MBEDTLS_PLATFORM_C)
"MBEDTLS_PLATFORM_C",
#endif /* MBEDTLS_PLATFORM_C */
#if defined(MBEDTLS_POLY1305_C)
"MBEDTLS_POLY1305_C",
#endif /* MBEDTLS_POLY1305_C */
#if defined(MBEDTLS_RIPEMD160_C)
"MBEDTLS_RIPEMD160_C",
#endif /* MBEDTLS_RIPEMD160_C */
#if defined(MBEDTLS_RSA_C)
"MBEDTLS_RSA_C",
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_SHA1_C)
"MBEDTLS_SHA1_C",
#endif /* MBEDTLS_SHA1_C */
#if defined(MBEDTLS_SHA256_C)
"MBEDTLS_SHA256_C",
#endif /* MBEDTLS_SHA256_C */
#if defined(MBEDTLS_SHA512_C)
"MBEDTLS_SHA512_C",
#endif /* MBEDTLS_SHA512_C */
#if defined(MBEDTLS_SSL_CACHE_C)
"MBEDTLS_SSL_CACHE_C",
#endif /* MBEDTLS_SSL_CACHE_C */
#if defined(MBEDTLS_SSL_COOKIE_C)
"MBEDTLS_SSL_COOKIE_C",
#endif /* MBEDTLS_SSL_COOKIE_C */
#if defined(MBEDTLS_SSL_TICKET_C)
"MBEDTLS_SSL_TICKET_C",
#endif /* MBEDTLS_SSL_TICKET_C */
#if defined(MBEDTLS_SSL_CLI_C)
"MBEDTLS_SSL_CLI_C",
#endif /* MBEDTLS_SSL_CLI_C */
#if defined(MBEDTLS_SSL_SRV_C)
"MBEDTLS_SSL_SRV_C",
#endif /* MBEDTLS_SSL_SRV_C */
#if defined(MBEDTLS_SSL_TLS_C)
"MBEDTLS_SSL_TLS_C",
#endif /* MBEDTLS_SSL_TLS_C */
#if defined(MBEDTLS_THREADING_C)
"MBEDTLS_THREADING_C",
#endif /* MBEDTLS_THREADING_C */
#if defined(MBEDTLS_TIMING_C)
"MBEDTLS_TIMING_C",
#endif /* MBEDTLS_TIMING_C */
#if defined(MBEDTLS_VERSION_C)
"MBEDTLS_VERSION_C",
#endif /* MBEDTLS_VERSION_C */
#if defined(MBEDTLS_X509_USE_C)
"MBEDTLS_X509_USE_C",
#endif /* MBEDTLS_X509_USE_C */
#if defined(MBEDTLS_X509_CRT_PARSE_C)
"MBEDTLS_X509_CRT_PARSE_C",
#endif /* MBEDTLS_X509_CRT_PARSE_C */
#if defined(MBEDTLS_X509_CRL_PARSE_C)
"MBEDTLS_X509_CRL_PARSE_C",
#endif /* MBEDTLS_X509_CRL_PARSE_C */
#if defined(MBEDTLS_X509_CSR_PARSE_C)
"MBEDTLS_X509_CSR_PARSE_C",
#endif /* MBEDTLS_X509_CSR_PARSE_C */
#if defined(MBEDTLS_X509_CREATE_C)
"MBEDTLS_X509_CREATE_C",
#endif /* MBEDTLS_X509_CREATE_C */
#if defined(MBEDTLS_X509_CRT_WRITE_C)
"MBEDTLS_X509_CRT_WRITE_C",
#endif /* MBEDTLS_X509_CRT_WRITE_C */
#if defined(MBEDTLS_X509_CSR_WRITE_C)
"MBEDTLS_X509_CSR_WRITE_C",
#endif /* MBEDTLS_X509_CSR_WRITE_C */
#if defined(MBEDTLS_XTEA_C)
"MBEDTLS_XTEA_C",
#endif /* MBEDTLS_XTEA_C */
#endif /* MBEDTLS_VERSION_FEATURES */
NULL
};
int mbedtls_version_check_feature( const char *feature )
{
const char **idx = features;
if( *idx == NULL )
return( -2 );
if( feature == NULL )
return( -1 );
while( *idx != NULL )
{
if( !strcmp( *idx, feature ) )
return( 0 );
idx++;
}
return( -1 );
}
#endif /* MBEDTLS_VERSION_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/version_features.c | C | apache-2.0 | 26,675 |
/*
* X.509 common functions for parsing and verification
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The ITU-T X.509 standard defines a certificate format for PKI.
*
* http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs)
* http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs)
* http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10)
*
* http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf
* http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_X509_USE_C)
#include "mbedtls/x509.h"
#include "mbedtls/asn1.h"
#include "mbedtls/oid.h"
#include <stdio.h>
#include <string.h>
#if defined(MBEDTLS_PEM_PARSE_C)
#include "mbedtls/pem.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_free free
#define mbedtls_calloc calloc
#define mbedtls_printf printf
#define mbedtls_snprintf snprintf
#endif
#if defined(MBEDTLS_HAVE_TIME)
#include "mbedtls/platform_time.h"
#endif
#if defined(MBEDTLS_HAVE_TIME_DATE)
#include "mbedtls/platform_util.h"
#include <time.h>
#endif
#define CHECK(code) if( ( ret = code ) != 0 ){ return( ret ); }
#define CHECK_RANGE(min, max, val) if( val < min || val > max ){ return( ret ); }
/*
* CertificateSerialNumber ::= INTEGER
*/
int mbedtls_x509_get_serial( unsigned char **p, const unsigned char *end,
mbedtls_x509_buf *serial )
{
int ret;
if( ( end - *p ) < 1 )
return( MBEDTLS_ERR_X509_INVALID_SERIAL +
MBEDTLS_ERR_ASN1_OUT_OF_DATA );
if( **p != ( MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_PRIMITIVE | 2 ) &&
**p != MBEDTLS_ASN1_INTEGER )
return( MBEDTLS_ERR_X509_INVALID_SERIAL +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
serial->tag = *(*p)++;
if( ( ret = mbedtls_asn1_get_len( p, end, &serial->len ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_SERIAL + ret );
serial->p = *p;
*p += serial->len;
return( 0 );
}
/* Get an algorithm identifier without parameters (eg for signatures)
*
* AlgorithmIdentifier ::= SEQUENCE {
* algorithm OBJECT IDENTIFIER,
* parameters ANY DEFINED BY algorithm OPTIONAL }
*/
int mbedtls_x509_get_alg_null( unsigned char **p, const unsigned char *end,
mbedtls_x509_buf *alg )
{
int ret;
if( ( ret = mbedtls_asn1_get_alg_null( p, end, alg ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
return( 0 );
}
/*
* Parse an algorithm identifier with (optional) paramaters
*/
int mbedtls_x509_get_alg( unsigned char **p, const unsigned char *end,
mbedtls_x509_buf *alg, mbedtls_x509_buf *params )
{
int ret;
if( ( ret = mbedtls_asn1_get_alg( p, end, alg, params ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
return( 0 );
}
#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
/*
* HashAlgorithm ::= AlgorithmIdentifier
*
* AlgorithmIdentifier ::= SEQUENCE {
* algorithm OBJECT IDENTIFIER,
* parameters ANY DEFINED BY algorithm OPTIONAL }
*
* For HashAlgorithm, parameters MUST be NULL or absent.
*/
static int x509_get_hash_alg( const mbedtls_x509_buf *alg, mbedtls_md_type_t *md_alg )
{
int ret;
unsigned char *p;
const unsigned char *end;
mbedtls_x509_buf md_oid;
size_t len;
/* Make sure we got a SEQUENCE and setup bounds */
if( alg->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) )
return( MBEDTLS_ERR_X509_INVALID_ALG +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
p = (unsigned char *) alg->p;
end = p + alg->len;
if( p >= end )
return( MBEDTLS_ERR_X509_INVALID_ALG +
MBEDTLS_ERR_ASN1_OUT_OF_DATA );
/* Parse md_oid */
md_oid.tag = *p;
if( ( ret = mbedtls_asn1_get_tag( &p, end, &md_oid.len, MBEDTLS_ASN1_OID ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
md_oid.p = p;
p += md_oid.len;
/* Get md_alg from md_oid */
if( ( ret = mbedtls_oid_get_md_alg( &md_oid, md_alg ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
/* Make sure params is absent of NULL */
if( p == end )
return( 0 );
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len, MBEDTLS_ASN1_NULL ) ) != 0 || len != 0 )
return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
if( p != end )
return( MBEDTLS_ERR_X509_INVALID_ALG +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
/*
* RSASSA-PSS-params ::= SEQUENCE {
* hashAlgorithm [0] HashAlgorithm DEFAULT sha1Identifier,
* maskGenAlgorithm [1] MaskGenAlgorithm DEFAULT mgf1SHA1Identifier,
* saltLength [2] INTEGER DEFAULT 20,
* trailerField [3] INTEGER DEFAULT 1 }
* -- Note that the tags in this Sequence are explicit.
*
* RFC 4055 (which defines use of RSASSA-PSS in PKIX) states that the value
* of trailerField MUST be 1, and PKCS#1 v2.2 doesn't even define any other
* option. Enfore this at parsing time.
*/
int mbedtls_x509_get_rsassa_pss_params( const mbedtls_x509_buf *params,
mbedtls_md_type_t *md_alg, mbedtls_md_type_t *mgf_md,
int *salt_len )
{
int ret;
unsigned char *p;
const unsigned char *end, *end2;
size_t len;
mbedtls_x509_buf alg_id, alg_params;
/* First set everything to defaults */
*md_alg = MBEDTLS_MD_SHA1;
*mgf_md = MBEDTLS_MD_SHA1;
*salt_len = 20;
/* Make sure params is a SEQUENCE and setup bounds */
if( params->tag != ( MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) )
return( MBEDTLS_ERR_X509_INVALID_ALG +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
p = (unsigned char *) params->p;
end = p + params->len;
if( p == end )
return( 0 );
/*
* HashAlgorithm
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 0 ) ) == 0 )
{
end2 = p + len;
/* HashAlgorithm ::= AlgorithmIdentifier (without parameters) */
if( ( ret = mbedtls_x509_get_alg_null( &p, end2, &alg_id ) ) != 0 )
return( ret );
if( ( ret = mbedtls_oid_get_md_alg( &alg_id, md_alg ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
if( p != end2 )
return( MBEDTLS_ERR_X509_INVALID_ALG +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
if( p == end )
return( 0 );
/*
* MaskGenAlgorithm
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 1 ) ) == 0 )
{
end2 = p + len;
/* MaskGenAlgorithm ::= AlgorithmIdentifier (params = HashAlgorithm) */
if( ( ret = mbedtls_x509_get_alg( &p, end2, &alg_id, &alg_params ) ) != 0 )
return( ret );
/* Only MFG1 is recognised for now */
if( MBEDTLS_OID_CMP( MBEDTLS_OID_MGF1, &alg_id ) != 0 )
return( MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE +
MBEDTLS_ERR_OID_NOT_FOUND );
/* Parse HashAlgorithm */
if( ( ret = x509_get_hash_alg( &alg_params, mgf_md ) ) != 0 )
return( ret );
if( p != end2 )
return( MBEDTLS_ERR_X509_INVALID_ALG +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
if( p == end )
return( 0 );
/*
* salt_len
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 2 ) ) == 0 )
{
end2 = p + len;
if( ( ret = mbedtls_asn1_get_int( &p, end2, salt_len ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
if( p != end2 )
return( MBEDTLS_ERR_X509_INVALID_ALG +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
if( p == end )
return( 0 );
/*
* trailer_field (if present, must be 1)
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 3 ) ) == 0 )
{
int trailer_field;
end2 = p + len;
if( ( ret = mbedtls_asn1_get_int( &p, end2, &trailer_field ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
if( p != end2 )
return( MBEDTLS_ERR_X509_INVALID_ALG +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
if( trailer_field != 1 )
return( MBEDTLS_ERR_X509_INVALID_ALG );
}
else if( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
return( MBEDTLS_ERR_X509_INVALID_ALG + ret );
if( p != end )
return( MBEDTLS_ERR_X509_INVALID_ALG +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */
/*
* AttributeTypeAndValue ::= SEQUENCE {
* type AttributeType,
* value AttributeValue }
*
* AttributeType ::= OBJECT IDENTIFIER
*
* AttributeValue ::= ANY DEFINED BY AttributeType
*/
static int x509_get_attr_type_value( unsigned char **p,
const unsigned char *end,
mbedtls_x509_name *cur )
{
int ret;
size_t len;
mbedtls_x509_buf *oid;
mbedtls_x509_buf *val;
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_NAME + ret );
if( ( end - *p ) < 1 )
return( MBEDTLS_ERR_X509_INVALID_NAME +
MBEDTLS_ERR_ASN1_OUT_OF_DATA );
oid = &cur->oid;
oid->tag = **p;
if( ( ret = mbedtls_asn1_get_tag( p, end, &oid->len, MBEDTLS_ASN1_OID ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_NAME + ret );
oid->p = *p;
*p += oid->len;
if( ( end - *p ) < 1 )
return( MBEDTLS_ERR_X509_INVALID_NAME +
MBEDTLS_ERR_ASN1_OUT_OF_DATA );
if( **p != MBEDTLS_ASN1_BMP_STRING && **p != MBEDTLS_ASN1_UTF8_STRING &&
**p != MBEDTLS_ASN1_T61_STRING && **p != MBEDTLS_ASN1_PRINTABLE_STRING &&
**p != MBEDTLS_ASN1_IA5_STRING && **p != MBEDTLS_ASN1_UNIVERSAL_STRING &&
**p != MBEDTLS_ASN1_BIT_STRING )
return( MBEDTLS_ERR_X509_INVALID_NAME +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
val = &cur->val;
val->tag = *(*p)++;
if( ( ret = mbedtls_asn1_get_len( p, end, &val->len ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_NAME + ret );
val->p = *p;
*p += val->len;
cur->next = NULL;
return( 0 );
}
/*
* Name ::= CHOICE { -- only one possibility for now --
* rdnSequence RDNSequence }
*
* RDNSequence ::= SEQUENCE OF RelativeDistinguishedName
*
* RelativeDistinguishedName ::=
* SET OF AttributeTypeAndValue
*
* AttributeTypeAndValue ::= SEQUENCE {
* type AttributeType,
* value AttributeValue }
*
* AttributeType ::= OBJECT IDENTIFIER
*
* AttributeValue ::= ANY DEFINED BY AttributeType
*
* The data structure is optimized for the common case where each RDN has only
* one element, which is represented as a list of AttributeTypeAndValue.
* For the general case we still use a flat list, but we mark elements of the
* same set so that they are "merged" together in the functions that consume
* this list, eg mbedtls_x509_dn_gets().
*/
int mbedtls_x509_get_name( unsigned char **p, const unsigned char *end,
mbedtls_x509_name *cur )
{
int ret;
size_t set_len;
const unsigned char *end_set;
/* don't use recursion, we'd risk stack overflow if not optimized */
while( 1 )
{
/*
* parse SET
*/
if( ( ret = mbedtls_asn1_get_tag( p, end, &set_len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SET ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_NAME + ret );
end_set = *p + set_len;
while( 1 )
{
if( ( ret = x509_get_attr_type_value( p, end_set, cur ) ) != 0 )
return( ret );
if( *p == end_set )
break;
/* Mark this item as being no the only one in a set */
cur->next_merged = 1;
cur->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_name ) );
if( cur->next == NULL )
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
cur = cur->next;
}
/*
* continue until end of SEQUENCE is reached
*/
if( *p == end )
return( 0 );
cur->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_name ) );
if( cur->next == NULL )
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
cur = cur->next;
}
}
static int x509_parse_int( unsigned char **p, size_t n, int *res )
{
*res = 0;
for( ; n > 0; --n )
{
if( ( **p < '0') || ( **p > '9' ) )
return ( MBEDTLS_ERR_X509_INVALID_DATE );
*res *= 10;
*res += ( *(*p)++ - '0' );
}
return( 0 );
}
static int x509_date_is_valid(const mbedtls_x509_time *t )
{
int ret = MBEDTLS_ERR_X509_INVALID_DATE;
int month_len;
CHECK_RANGE( 0, 9999, t->year );
CHECK_RANGE( 0, 23, t->hour );
CHECK_RANGE( 0, 59, t->min );
CHECK_RANGE( 0, 59, t->sec );
switch( t->mon )
{
case 1: case 3: case 5: case 7: case 8: case 10: case 12:
month_len = 31;
break;
case 4: case 6: case 9: case 11:
month_len = 30;
break;
case 2:
if( ( !( t->year % 4 ) && t->year % 100 ) ||
!( t->year % 400 ) )
month_len = 29;
else
month_len = 28;
break;
default:
return( ret );
}
CHECK_RANGE( 1, month_len, t->day );
return( 0 );
}
/*
* Parse an ASN1_UTC_TIME (yearlen=2) or ASN1_GENERALIZED_TIME (yearlen=4)
* field.
*/
static int x509_parse_time( unsigned char **p, size_t len, size_t yearlen,
mbedtls_x509_time *tm )
{
int ret;
/*
* Minimum length is 10 or 12 depending on yearlen
*/
if ( len < yearlen + 8 )
return ( MBEDTLS_ERR_X509_INVALID_DATE );
len -= yearlen + 8;
/*
* Parse year, month, day, hour, minute
*/
CHECK( x509_parse_int( p, yearlen, &tm->year ) );
if ( 2 == yearlen )
{
if ( tm->year < 50 )
tm->year += 100;
tm->year += 1900;
}
CHECK( x509_parse_int( p, 2, &tm->mon ) );
CHECK( x509_parse_int( p, 2, &tm->day ) );
CHECK( x509_parse_int( p, 2, &tm->hour ) );
CHECK( x509_parse_int( p, 2, &tm->min ) );
/*
* Parse seconds if present
*/
if ( len >= 2 )
{
CHECK( x509_parse_int( p, 2, &tm->sec ) );
len -= 2;
}
else
return ( MBEDTLS_ERR_X509_INVALID_DATE );
/*
* Parse trailing 'Z' if present
*/
if ( 1 == len && 'Z' == **p )
{
(*p)++;
len--;
}
/*
* We should have parsed all characters at this point
*/
if ( 0 != len )
return ( MBEDTLS_ERR_X509_INVALID_DATE );
CHECK( x509_date_is_valid( tm ) );
return ( 0 );
}
/*
* Time ::= CHOICE {
* utcTime UTCTime,
* generalTime GeneralizedTime }
*/
int mbedtls_x509_get_time( unsigned char **p, const unsigned char *end,
mbedtls_x509_time *tm )
{
int ret;
size_t len, year_len;
unsigned char tag;
if( ( end - *p ) < 1 )
return( MBEDTLS_ERR_X509_INVALID_DATE +
MBEDTLS_ERR_ASN1_OUT_OF_DATA );
tag = **p;
if( tag == MBEDTLS_ASN1_UTC_TIME )
year_len = 2;
else if( tag == MBEDTLS_ASN1_GENERALIZED_TIME )
year_len = 4;
else
return( MBEDTLS_ERR_X509_INVALID_DATE +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
(*p)++;
ret = mbedtls_asn1_get_len( p, end, &len );
if( ret != 0 )
return( MBEDTLS_ERR_X509_INVALID_DATE + ret );
return x509_parse_time( p, len, year_len, tm );
}
int mbedtls_x509_get_sig( unsigned char **p, const unsigned char *end, mbedtls_x509_buf *sig )
{
int ret;
size_t len;
int tag_type;
if( ( end - *p ) < 1 )
return( MBEDTLS_ERR_X509_INVALID_SIGNATURE +
MBEDTLS_ERR_ASN1_OUT_OF_DATA );
tag_type = **p;
if( ( ret = mbedtls_asn1_get_bitstring_null( p, end, &len ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_SIGNATURE + ret );
sig->tag = tag_type;
sig->len = len;
sig->p = *p;
*p += len;
return( 0 );
}
/*
* Get signature algorithm from alg OID and optional parameters
*/
int mbedtls_x509_get_sig_alg( const mbedtls_x509_buf *sig_oid, const mbedtls_x509_buf *sig_params,
mbedtls_md_type_t *md_alg, mbedtls_pk_type_t *pk_alg,
void **sig_opts )
{
int ret;
if( *sig_opts != NULL )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
if( ( ret = mbedtls_oid_get_sig_alg( sig_oid, md_alg, pk_alg ) ) != 0 )
return( MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG + ret );
#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
if( *pk_alg == MBEDTLS_PK_RSASSA_PSS )
{
mbedtls_pk_rsassa_pss_options *pss_opts;
pss_opts = mbedtls_calloc( 1, sizeof( mbedtls_pk_rsassa_pss_options ) );
if( pss_opts == NULL )
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
ret = mbedtls_x509_get_rsassa_pss_params( sig_params,
md_alg,
&pss_opts->mgf1_hash_id,
&pss_opts->expected_salt_len );
if( ret != 0 )
{
mbedtls_free( pss_opts );
return( ret );
}
*sig_opts = (void *) pss_opts;
}
else
#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */
{
/* Make sure parameters are absent or NULL */
if( ( sig_params->tag != MBEDTLS_ASN1_NULL && sig_params->tag != 0 ) ||
sig_params->len != 0 )
return( MBEDTLS_ERR_X509_INVALID_ALG );
}
return( 0 );
}
/*
* X.509 Extensions (No parsing of extensions, pointer should
* be either manually updated or extensions should be parsed!)
*/
int mbedtls_x509_get_ext( unsigned char **p, const unsigned char *end,
mbedtls_x509_buf *ext, int tag )
{
int ret;
size_t len;
if( *p == end )
return( 0 );
ext->tag = **p;
if( ( ret = mbedtls_asn1_get_tag( p, end, &ext->len,
MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | tag ) ) != 0 )
return( ret );
ext->p = *p;
end = *p + ext->len;
/*
* Extensions ::= SEQUENCE SIZE (1..MAX) OF Extension
*
* Extension ::= SEQUENCE {
* extnID OBJECT IDENTIFIER,
* critical BOOLEAN DEFAULT FALSE,
* extnValue OCTET STRING }
*/
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
if( end != *p + len )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
/*
* Store the name in printable form into buf; no more
* than size characters will be written
*/
int mbedtls_x509_dn_gets( char *buf, size_t size, const mbedtls_x509_name *dn )
{
int ret;
size_t i, n;
unsigned char c, merge = 0;
const mbedtls_x509_name *name;
const char *short_name = NULL;
char s[MBEDTLS_X509_MAX_DN_NAME_SIZE], *p;
memset( s, 0, sizeof( s ) );
name = dn;
p = buf;
n = size;
while( name != NULL )
{
if( !name->oid.p )
{
name = name->next;
continue;
}
if( name != dn )
{
ret = mbedtls_snprintf( p, n, merge ? " + " : ", " );
MBEDTLS_X509_SAFE_SNPRINTF;
}
ret = mbedtls_oid_get_attr_short_name( &name->oid, &short_name );
if( ret == 0 )
ret = mbedtls_snprintf( p, n, "%s=", short_name );
else
ret = mbedtls_snprintf( p, n, "\?\?=" );
MBEDTLS_X509_SAFE_SNPRINTF;
for( i = 0; i < name->val.len; i++ )
{
if( i >= sizeof( s ) - 1 )
break;
c = name->val.p[i];
if( c < 32 || c == 127 || ( c > 128 && c < 160 ) )
s[i] = '?';
else s[i] = c;
}
s[i] = '\0';
ret = mbedtls_snprintf( p, n, "%s", s );
MBEDTLS_X509_SAFE_SNPRINTF;
merge = name->next_merged;
name = name->next;
}
return( (int) ( size - n ) );
}
/*
* Store the serial in printable form into buf; no more
* than size characters will be written
*/
int mbedtls_x509_serial_gets( char *buf, size_t size, const mbedtls_x509_buf *serial )
{
int ret;
size_t i, n, nr;
char *p;
p = buf;
n = size;
nr = ( serial->len <= 32 )
? serial->len : 28;
for( i = 0; i < nr; i++ )
{
if( i == 0 && nr > 1 && serial->p[i] == 0x0 )
continue;
ret = mbedtls_snprintf( p, n, "%02X%s",
serial->p[i], ( i < nr - 1 ) ? ":" : "" );
MBEDTLS_X509_SAFE_SNPRINTF;
}
if( nr != serial->len )
{
ret = mbedtls_snprintf( p, n, "...." );
MBEDTLS_X509_SAFE_SNPRINTF;
}
return( (int) ( size - n ) );
}
/*
* Helper for writing signature algorithms
*/
int mbedtls_x509_sig_alg_gets( char *buf, size_t size, const mbedtls_x509_buf *sig_oid,
mbedtls_pk_type_t pk_alg, mbedtls_md_type_t md_alg,
const void *sig_opts )
{
int ret;
char *p = buf;
size_t n = size;
const char *desc = NULL;
ret = mbedtls_oid_get_sig_alg_desc( sig_oid, &desc );
if( ret != 0 )
ret = mbedtls_snprintf( p, n, "???" );
else
ret = mbedtls_snprintf( p, n, "%s", desc );
MBEDTLS_X509_SAFE_SNPRINTF;
#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
if( pk_alg == MBEDTLS_PK_RSASSA_PSS )
{
const mbedtls_pk_rsassa_pss_options *pss_opts;
const mbedtls_md_info_t *md_info, *mgf_md_info;
pss_opts = (const mbedtls_pk_rsassa_pss_options *) sig_opts;
md_info = mbedtls_md_info_from_type( md_alg );
mgf_md_info = mbedtls_md_info_from_type( pss_opts->mgf1_hash_id );
ret = mbedtls_snprintf( p, n, " (%s, MGF1-%s, 0x%02X)",
md_info ? mbedtls_md_get_name( md_info ) : "???",
mgf_md_info ? mbedtls_md_get_name( mgf_md_info ) : "???",
pss_opts->expected_salt_len );
MBEDTLS_X509_SAFE_SNPRINTF;
}
#else
((void) pk_alg);
((void) md_alg);
((void) sig_opts);
#endif /* MBEDTLS_X509_RSASSA_PSS_SUPPORT */
return( (int)( size - n ) );
}
/*
* Helper for writing "RSA key size", "EC key size", etc
*/
int mbedtls_x509_key_size_helper( char *buf, size_t buf_size, const char *name )
{
char *p = buf;
size_t n = buf_size;
int ret;
ret = mbedtls_snprintf( p, n, "%s key size", name );
MBEDTLS_X509_SAFE_SNPRINTF;
return( 0 );
}
#if defined(MBEDTLS_HAVE_TIME_DATE)
/*
* Set the time structure to the current time.
* Return 0 on success, non-zero on failure.
*/
static int x509_get_current_time( mbedtls_x509_time *now )
{
struct tm *lt, tm_buf;
mbedtls_time_t tt;
int ret = 0;
tt = mbedtls_time( NULL );
lt = mbedtls_platform_gmtime_r( &tt, &tm_buf );
if( lt == NULL )
ret = -1;
else
{
now->year = lt->tm_year + 1900;
now->mon = lt->tm_mon + 1;
now->day = lt->tm_mday;
now->hour = lt->tm_hour;
now->min = lt->tm_min;
now->sec = lt->tm_sec;
}
return( ret );
}
/*
* Return 0 if before <= after, 1 otherwise
*/
static int x509_check_time( const mbedtls_x509_time *before, const mbedtls_x509_time *after )
{
if( before->year > after->year )
return( 1 );
if( before->year == after->year &&
before->mon > after->mon )
return( 1 );
if( before->year == after->year &&
before->mon == after->mon &&
before->day > after->day )
return( 1 );
if( before->year == after->year &&
before->mon == after->mon &&
before->day == after->day &&
before->hour > after->hour )
return( 1 );
if( before->year == after->year &&
before->mon == after->mon &&
before->day == after->day &&
before->hour == after->hour &&
before->min > after->min )
return( 1 );
if( before->year == after->year &&
before->mon == after->mon &&
before->day == after->day &&
before->hour == after->hour &&
before->min == after->min &&
before->sec > after->sec )
return( 1 );
return( 0 );
}
int mbedtls_x509_time_is_past( const mbedtls_x509_time *to )
{
mbedtls_x509_time now;
if( x509_get_current_time( &now ) != 0 )
return( 1 );
return( x509_check_time( &now, to ) );
}
int mbedtls_x509_time_is_future( const mbedtls_x509_time *from )
{
mbedtls_x509_time now;
if( x509_get_current_time( &now ) != 0 )
return( 1 );
return( x509_check_time( from, &now ) );
}
#else /* MBEDTLS_HAVE_TIME_DATE */
int mbedtls_x509_time_is_past( const mbedtls_x509_time *to )
{
((void) to);
return( 0 );
}
int mbedtls_x509_time_is_future( const mbedtls_x509_time *from )
{
((void) from);
return( 0 );
}
#endif /* MBEDTLS_HAVE_TIME_DATE */
#if defined(MBEDTLS_SELF_TEST)
#include "mbedtls/x509_crt.h"
#include "mbedtls/certs.h"
/*
* Checkup routine
*/
int mbedtls_x509_self_test( int verbose )
{
#if defined(MBEDTLS_CERTS_C) && defined(MBEDTLS_SHA256_C)
int ret;
uint32_t flags;
mbedtls_x509_crt cacert;
mbedtls_x509_crt clicert;
if( verbose != 0 )
mbedtls_printf( " X.509 certificate load: " );
mbedtls_x509_crt_init( &clicert );
ret = mbedtls_x509_crt_parse( &clicert, (const unsigned char *) mbedtls_test_cli_crt,
mbedtls_test_cli_crt_len );
if( ret != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
return( ret );
}
mbedtls_x509_crt_init( &cacert );
ret = mbedtls_x509_crt_parse( &cacert, (const unsigned char *) mbedtls_test_ca_crt,
mbedtls_test_ca_crt_len );
if( ret != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
return( ret );
}
if( verbose != 0 )
mbedtls_printf( "passed\n X.509 signature verify: ");
ret = mbedtls_x509_crt_verify( &clicert, &cacert, NULL, NULL, &flags, NULL, NULL );
if( ret != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
return( ret );
}
if( verbose != 0 )
mbedtls_printf( "passed\n\n");
mbedtls_x509_crt_free( &cacert );
mbedtls_x509_crt_free( &clicert );
return( 0 );
#else
((void) verbose);
return( 0 );
#endif /* MBEDTLS_CERTS_C && MBEDTLS_SHA1_C */
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_X509_USE_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/x509.c | C | apache-2.0 | 28,723 |
/*
* X.509 base functions for creating certificates / CSRs
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_X509_CREATE_C)
#include "mbedtls/x509.h"
#include "mbedtls/asn1write.h"
#include "mbedtls/oid.h"
#include <string.h>
/* Structure linking OIDs for X.509 DN AttributeTypes to their
* string representations and default string encodings used by Mbed TLS. */
typedef struct {
const char *name; /* String representation of AttributeType, e.g.
* "CN" or "emailAddress". */
size_t name_len; /* Length of 'name', without trailing 0 byte. */
const char *oid; /* String representation of OID of AttributeType,
* as per RFC 5280, Appendix A.1. */
int default_tag; /* The default character encoding used for the
* given attribute type, e.g.
* MBEDTLS_ASN1_UTF8_STRING for UTF-8. */
} x509_attr_descriptor_t;
#define ADD_STRLEN( s ) s, sizeof( s ) - 1
/* X.509 DN attributes from RFC 5280, Appendix A.1. */
static const x509_attr_descriptor_t x509_attrs[] =
{
{ ADD_STRLEN( "CN" ),
MBEDTLS_OID_AT_CN, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "commonName" ),
MBEDTLS_OID_AT_CN, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "C" ),
MBEDTLS_OID_AT_COUNTRY, MBEDTLS_ASN1_PRINTABLE_STRING },
{ ADD_STRLEN( "countryName" ),
MBEDTLS_OID_AT_COUNTRY, MBEDTLS_ASN1_PRINTABLE_STRING },
{ ADD_STRLEN( "O" ),
MBEDTLS_OID_AT_ORGANIZATION, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "organizationName" ),
MBEDTLS_OID_AT_ORGANIZATION, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "L" ),
MBEDTLS_OID_AT_LOCALITY, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "locality" ),
MBEDTLS_OID_AT_LOCALITY, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "R" ),
MBEDTLS_OID_PKCS9_EMAIL, MBEDTLS_ASN1_IA5_STRING },
{ ADD_STRLEN( "OU" ),
MBEDTLS_OID_AT_ORG_UNIT, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "organizationalUnitName" ),
MBEDTLS_OID_AT_ORG_UNIT, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "ST" ),
MBEDTLS_OID_AT_STATE, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "stateOrProvinceName" ),
MBEDTLS_OID_AT_STATE, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "emailAddress" ),
MBEDTLS_OID_PKCS9_EMAIL, MBEDTLS_ASN1_IA5_STRING },
{ ADD_STRLEN( "serialNumber" ),
MBEDTLS_OID_AT_SERIAL_NUMBER, MBEDTLS_ASN1_PRINTABLE_STRING },
{ ADD_STRLEN( "postalAddress" ),
MBEDTLS_OID_AT_POSTAL_ADDRESS, MBEDTLS_ASN1_PRINTABLE_STRING },
{ ADD_STRLEN( "postalCode" ),
MBEDTLS_OID_AT_POSTAL_CODE, MBEDTLS_ASN1_PRINTABLE_STRING },
{ ADD_STRLEN( "dnQualifier" ),
MBEDTLS_OID_AT_DN_QUALIFIER, MBEDTLS_ASN1_PRINTABLE_STRING },
{ ADD_STRLEN( "title" ),
MBEDTLS_OID_AT_TITLE, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "surName" ),
MBEDTLS_OID_AT_SUR_NAME, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "SN" ),
MBEDTLS_OID_AT_SUR_NAME, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "givenName" ),
MBEDTLS_OID_AT_GIVEN_NAME, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "GN" ),
MBEDTLS_OID_AT_GIVEN_NAME, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "initials" ),
MBEDTLS_OID_AT_INITIALS, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "pseudonym" ),
MBEDTLS_OID_AT_PSEUDONYM, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "generationQualifier" ),
MBEDTLS_OID_AT_GENERATION_QUALIFIER, MBEDTLS_ASN1_UTF8_STRING },
{ ADD_STRLEN( "domainComponent" ),
MBEDTLS_OID_DOMAIN_COMPONENT, MBEDTLS_ASN1_IA5_STRING },
{ ADD_STRLEN( "DC" ),
MBEDTLS_OID_DOMAIN_COMPONENT, MBEDTLS_ASN1_IA5_STRING },
{ NULL, 0, NULL, MBEDTLS_ASN1_NULL }
};
static const x509_attr_descriptor_t *x509_attr_descr_from_name( const char *name, size_t name_len )
{
const x509_attr_descriptor_t *cur;
for( cur = x509_attrs; cur->name != NULL; cur++ )
if( cur->name_len == name_len &&
strncmp( cur->name, name, name_len ) == 0 )
break;
if ( cur->name == NULL )
return( NULL );
return( cur );
}
int mbedtls_x509_string_to_names( mbedtls_asn1_named_data **head, const char *name )
{
int ret = 0;
const char *s = name, *c = s;
const char *end = s + strlen( s );
const char *oid = NULL;
const x509_attr_descriptor_t* attr_descr = NULL;
int in_tag = 1;
char data[MBEDTLS_X509_MAX_DN_NAME_SIZE];
char *d = data;
/* Clear existing chain if present */
mbedtls_asn1_free_named_data_list( head );
while( c <= end )
{
if( in_tag && *c == '=' )
{
if( ( attr_descr = x509_attr_descr_from_name( s, c - s ) ) == NULL )
{
ret = MBEDTLS_ERR_X509_UNKNOWN_OID;
goto exit;
}
oid = attr_descr->oid;
s = c + 1;
in_tag = 0;
d = data;
}
if( !in_tag && *c == '\\' && c != end )
{
c++;
/* Check for valid escaped characters */
if( c == end || *c != ',' )
{
ret = MBEDTLS_ERR_X509_INVALID_NAME;
goto exit;
}
}
else if( !in_tag && ( *c == ',' || c == end ) )
{
mbedtls_asn1_named_data* cur =
mbedtls_asn1_store_named_data( head, oid, strlen( oid ),
(unsigned char *) data,
d - data );
if(cur == NULL )
{
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
}
// set tagType
cur->val.tag = attr_descr->default_tag;
while( c < end && *(c + 1) == ' ' )
c++;
s = c + 1;
in_tag = 1;
}
if( !in_tag && s != c + 1 )
{
*(d++) = *c;
if( d - data == MBEDTLS_X509_MAX_DN_NAME_SIZE )
{
ret = MBEDTLS_ERR_X509_INVALID_NAME;
goto exit;
}
}
c++;
}
exit:
return( ret );
}
/* The first byte of the value in the mbedtls_asn1_named_data structure is reserved
* to store the critical boolean for us
*/
int mbedtls_x509_set_extension( mbedtls_asn1_named_data **head, const char *oid, size_t oid_len,
int critical, const unsigned char *val, size_t val_len )
{
mbedtls_asn1_named_data *cur;
if( ( cur = mbedtls_asn1_store_named_data( head, oid, oid_len,
NULL, val_len + 1 ) ) == NULL )
{
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
}
cur->val.p[0] = critical;
memcpy( cur->val.p + 1, val, val_len );
return( 0 );
}
/*
* RelativeDistinguishedName ::=
* SET OF AttributeTypeAndValue
*
* AttributeTypeAndValue ::= SEQUENCE {
* type AttributeType,
* value AttributeValue }
*
* AttributeType ::= OBJECT IDENTIFIER
*
* AttributeValue ::= ANY DEFINED BY AttributeType
*/
static int x509_write_name( unsigned char **p, unsigned char *start, mbedtls_asn1_named_data* cur_name)
{
int ret;
size_t len = 0;
const char *oid = (const char*)cur_name->oid.p;
size_t oid_len = cur_name->oid.len;
const unsigned char *name = cur_name->val.p;
size_t name_len = cur_name->val.len;
// Write correct string tag and value
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tagged_string( p, start,
cur_name->val.tag,
(const char *) name,
name_len ) );
// Write OID
//
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( p, start, oid,
oid_len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start,
MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start,
MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SET ) );
return( (int) len );
}
int mbedtls_x509_write_names( unsigned char **p, unsigned char *start,
mbedtls_asn1_named_data *first )
{
int ret;
size_t len = 0;
mbedtls_asn1_named_data *cur = first;
while( cur != NULL )
{
MBEDTLS_ASN1_CHK_ADD( len, x509_write_name( p, start, cur ) );
cur = cur->next;
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return( (int) len );
}
int mbedtls_x509_write_sig( unsigned char **p, unsigned char *start,
const char *oid, size_t oid_len,
unsigned char *sig, size_t size )
{
int ret;
size_t len = 0;
if( *p < start || (size_t)( *p - start ) < size )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
len = size;
(*p) -= len;
memcpy( *p, sig, len );
if( *p - start < 1 )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
*--(*p) = 0;
len += 1;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_BIT_STRING ) );
// Write OID
//
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( p, start, oid,
oid_len, 0 ) );
return( (int) len );
}
static int x509_write_extension( unsigned char **p, unsigned char *start,
mbedtls_asn1_named_data *ext )
{
int ret;
size_t len = 0;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, ext->val.p + 1,
ext->val.len - 1 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, ext->val.len - 1 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OCTET_STRING ) );
if( ext->val.p[0] != 0 )
{
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_bool( p, start, 1 ) );
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start, ext->oid.p,
ext->oid.len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, ext->oid.len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_OID ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return( (int) len );
}
/*
* Extension ::= SEQUENCE {
* extnID OBJECT IDENTIFIER,
* critical BOOLEAN DEFAULT FALSE,
* extnValue OCTET STRING
* -- contains the DER encoding of an ASN.1 value
* -- corresponding to the extension type identified
* -- by extnID
* }
*/
int mbedtls_x509_write_extensions( unsigned char **p, unsigned char *start,
mbedtls_asn1_named_data *first )
{
int ret;
size_t len = 0;
mbedtls_asn1_named_data *cur_ext = first;
while( cur_ext != NULL )
{
MBEDTLS_ASN1_CHK_ADD( len, x509_write_extension( p, start, cur_ext ) );
cur_ext = cur_ext->next;
}
return( (int) len );
}
#endif /* MBEDTLS_X509_CREATE_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/x509_create.c | C | apache-2.0 | 12,822 |
/*
* X.509 Certidicate Revocation List (CRL) parsing
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The ITU-T X.509 standard defines a certificate format for PKI.
*
* http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs)
* http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs)
* http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10)
*
* http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf
* http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_X509_CRL_PARSE_C)
#include "mbedtls/x509_crl.h"
#include "mbedtls/oid.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_PEM_PARSE_C)
#include "mbedtls/pem.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#include <stdio.h>
#define mbedtls_free free
#define mbedtls_calloc calloc
#define mbedtls_snprintf snprintf
#endif
#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
#include <windows.h>
#else
#include <time.h>
#endif
#if defined(MBEDTLS_FS_IO) || defined(EFIX64) || defined(EFI32)
#include <stdio.h>
#endif
/*
* Version ::= INTEGER { v1(0), v2(1) }
*/
static int x509_crl_get_version( unsigned char **p,
const unsigned char *end,
int *ver )
{
int ret;
if( ( ret = mbedtls_asn1_get_int( p, end, ver ) ) != 0 )
{
if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
{
*ver = 0;
return( 0 );
}
return( MBEDTLS_ERR_X509_INVALID_VERSION + ret );
}
return( 0 );
}
/*
* X.509 CRL v2 extensions
*
* We currently don't parse any extension's content, but we do check that the
* list of extensions is well-formed and abort on critical extensions (that
* are unsupported as we don't support any extension so far)
*/
static int x509_get_crl_ext( unsigned char **p,
const unsigned char *end,
mbedtls_x509_buf *ext )
{
int ret;
/*
* crlExtensions [0] EXPLICIT Extensions OPTIONAL
* -- if present, version MUST be v2
*/
if( ( ret = mbedtls_x509_get_ext( p, end, ext, 0 ) ) != 0 )
{
if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
return( 0 );
return( ret );
}
while( *p < end )
{
/*
* Extension ::= SEQUENCE {
* extnID OBJECT IDENTIFIER,
* critical BOOLEAN DEFAULT FALSE,
* extnValue OCTET STRING }
*/
int is_critical = 0;
const unsigned char *end_ext_data;
size_t len;
/* Get enclosing sequence tag */
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
end_ext_data = *p + len;
/* Get OID (currently ignored) */
if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &len,
MBEDTLS_ASN1_OID ) ) != 0 )
{
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
}
*p += len;
/* Get optional critical */
if( ( ret = mbedtls_asn1_get_bool( p, end_ext_data,
&is_critical ) ) != 0 &&
( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) )
{
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
}
/* Data should be octet string type */
if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &len,
MBEDTLS_ASN1_OCTET_STRING ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
/* Ignore data so far and just check its length */
*p += len;
if( *p != end_ext_data )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
/* Abort on (unsupported) critical extensions */
if( is_critical )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
}
if( *p != end )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
/*
* X.509 CRL v2 entry extensions (no extensions parsed yet.)
*/
static int x509_get_crl_entry_ext( unsigned char **p,
const unsigned char *end,
mbedtls_x509_buf *ext )
{
int ret;
size_t len = 0;
/* OPTIONAL */
if( end <= *p )
return( 0 );
ext->tag = **p;
ext->p = *p;
/*
* Get CRL-entry extension sequence header
* crlEntryExtensions Extensions OPTIONAL -- if present, MUST be v2
*/
if( ( ret = mbedtls_asn1_get_tag( p, end, &ext->len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
{
ext->p = NULL;
return( 0 );
}
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
}
end = *p + ext->len;
if( end != *p + ext->len )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
while( *p < end )
{
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
*p += len;
}
if( *p != end )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
/*
* X.509 CRL Entries
*/
static int x509_get_entries( unsigned char **p,
const unsigned char *end,
mbedtls_x509_crl_entry *entry )
{
int ret;
size_t entry_len;
mbedtls_x509_crl_entry *cur_entry = entry;
if( *p == end )
return( 0 );
if( ( ret = mbedtls_asn1_get_tag( p, end, &entry_len,
MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED ) ) != 0 )
{
if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
return( 0 );
return( ret );
}
end = *p + entry_len;
while( *p < end )
{
size_t len2;
const unsigned char *end2;
if( ( ret = mbedtls_asn1_get_tag( p, end, &len2,
MBEDTLS_ASN1_SEQUENCE | MBEDTLS_ASN1_CONSTRUCTED ) ) != 0 )
{
return( ret );
}
cur_entry->raw.tag = **p;
cur_entry->raw.p = *p;
cur_entry->raw.len = len2;
end2 = *p + len2;
if( ( ret = mbedtls_x509_get_serial( p, end2, &cur_entry->serial ) ) != 0 )
return( ret );
if( ( ret = mbedtls_x509_get_time( p, end2,
&cur_entry->revocation_date ) ) != 0 )
return( ret );
if( ( ret = x509_get_crl_entry_ext( p, end2,
&cur_entry->entry_ext ) ) != 0 )
return( ret );
if( *p < end )
{
cur_entry->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crl_entry ) );
if( cur_entry->next == NULL )
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
cur_entry = cur_entry->next;
}
}
return( 0 );
}
/*
* Parse one CRLs in DER format and append it to the chained list
*/
int mbedtls_x509_crl_parse_der( mbedtls_x509_crl *chain,
const unsigned char *buf, size_t buflen )
{
int ret;
size_t len;
unsigned char *p = NULL, *end = NULL;
mbedtls_x509_buf sig_params1, sig_params2, sig_oid2;
mbedtls_x509_crl *crl = chain;
/*
* Check for valid input
*/
if( crl == NULL || buf == NULL )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
memset( &sig_params1, 0, sizeof( mbedtls_x509_buf ) );
memset( &sig_params2, 0, sizeof( mbedtls_x509_buf ) );
memset( &sig_oid2, 0, sizeof( mbedtls_x509_buf ) );
/*
* Add new CRL on the end of the chain if needed.
*/
while( crl->version != 0 && crl->next != NULL )
crl = crl->next;
if( crl->version != 0 && crl->next == NULL )
{
crl->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crl ) );
if( crl->next == NULL )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
}
mbedtls_x509_crl_init( crl->next );
crl = crl->next;
}
/*
* Copy raw DER-encoded CRL
*/
if( buflen == 0 )
return( MBEDTLS_ERR_X509_INVALID_FORMAT );
p = mbedtls_calloc( 1, buflen );
if( p == NULL )
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
memcpy( p, buf, buflen );
crl->raw.p = p;
crl->raw.len = buflen;
end = p + buflen;
/*
* CertificateList ::= SEQUENCE {
* tbsCertList TBSCertList,
* signatureAlgorithm AlgorithmIdentifier,
* signatureValue BIT STRING }
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_INVALID_FORMAT );
}
if( len != (size_t) ( end - p ) )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
/*
* TBSCertList ::= SEQUENCE {
*/
crl->tbs.p = p;
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
}
end = p + len;
crl->tbs.len = end - crl->tbs.p;
/*
* Version ::= INTEGER OPTIONAL { v1(0), v2(1) }
* -- if present, MUST be v2
*
* signature AlgorithmIdentifier
*/
if( ( ret = x509_crl_get_version( &p, end, &crl->version ) ) != 0 ||
( ret = mbedtls_x509_get_alg( &p, end, &crl->sig_oid, &sig_params1 ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
if( crl->version < 0 || crl->version > 1 )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_UNKNOWN_VERSION );
}
crl->version++;
if( ( ret = mbedtls_x509_get_sig_alg( &crl->sig_oid, &sig_params1,
&crl->sig_md, &crl->sig_pk,
&crl->sig_opts ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG );
}
/*
* issuer Name
*/
crl->issuer_raw.p = p;
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
}
if( ( ret = mbedtls_x509_get_name( &p, p + len, &crl->issuer ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
crl->issuer_raw.len = p - crl->issuer_raw.p;
/*
* thisUpdate Time
* nextUpdate Time OPTIONAL
*/
if( ( ret = mbedtls_x509_get_time( &p, end, &crl->this_update ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
if( ( ret = mbedtls_x509_get_time( &p, end, &crl->next_update ) ) != 0 )
{
if( ret != ( MBEDTLS_ERR_X509_INVALID_DATE +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) &&
ret != ( MBEDTLS_ERR_X509_INVALID_DATE +
MBEDTLS_ERR_ASN1_OUT_OF_DATA ) )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
}
/*
* revokedCertificates SEQUENCE OF SEQUENCE {
* userCertificate CertificateSerialNumber,
* revocationDate Time,
* crlEntryExtensions Extensions OPTIONAL
* -- if present, MUST be v2
* } OPTIONAL
*/
if( ( ret = x509_get_entries( &p, end, &crl->entry ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
/*
* crlExtensions EXPLICIT Extensions OPTIONAL
* -- if present, MUST be v2
*/
if( crl->version == 2 )
{
ret = x509_get_crl_ext( &p, end, &crl->crl_ext );
if( ret != 0 )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
}
if( p != end )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
end = crl->raw.p + crl->raw.len;
/*
* signatureAlgorithm AlgorithmIdentifier,
* signatureValue BIT STRING
*/
if( ( ret = mbedtls_x509_get_alg( &p, end, &sig_oid2, &sig_params2 ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
if( crl->sig_oid.len != sig_oid2.len ||
memcmp( crl->sig_oid.p, sig_oid2.p, crl->sig_oid.len ) != 0 ||
sig_params1.len != sig_params2.len ||
( sig_params1.len != 0 &&
memcmp( sig_params1.p, sig_params2.p, sig_params1.len ) != 0 ) )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_SIG_MISMATCH );
}
if( ( ret = mbedtls_x509_get_sig( &p, end, &crl->sig ) ) != 0 )
{
mbedtls_x509_crl_free( crl );
return( ret );
}
if( p != end )
{
mbedtls_x509_crl_free( crl );
return( MBEDTLS_ERR_X509_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
return( 0 );
}
/*
* Parse one or more CRLs and add them to the chained list
*/
int mbedtls_x509_crl_parse( mbedtls_x509_crl *chain, const unsigned char *buf, size_t buflen )
{
#if defined(MBEDTLS_PEM_PARSE_C)
int ret;
size_t use_len;
mbedtls_pem_context pem;
int is_pem = 0;
if( chain == NULL || buf == NULL )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
do
{
mbedtls_pem_init( &pem );
// Avoid calling mbedtls_pem_read_buffer() on non-null-terminated
// string
if( buflen == 0 || buf[buflen - 1] != '\0' )
ret = MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT;
else
ret = mbedtls_pem_read_buffer( &pem,
"-----BEGIN X509 CRL-----",
"-----END X509 CRL-----",
buf, NULL, 0, &use_len );
if( ret == 0 )
{
/*
* Was PEM encoded
*/
is_pem = 1;
buflen -= use_len;
buf += use_len;
if( ( ret = mbedtls_x509_crl_parse_der( chain,
pem.buf, pem.buflen ) ) != 0 )
{
mbedtls_pem_free( &pem );
return( ret );
}
}
else if( is_pem )
{
mbedtls_pem_free( &pem );
return( ret );
}
mbedtls_pem_free( &pem );
}
/* In the PEM case, buflen is 1 at the end, for the terminated NULL byte.
* And a valid CRL cannot be less than 1 byte anyway. */
while( is_pem && buflen > 1 );
if( is_pem )
return( 0 );
else
#endif /* MBEDTLS_PEM_PARSE_C */
return( mbedtls_x509_crl_parse_der( chain, buf, buflen ) );
}
#if defined(MBEDTLS_FS_IO)
/*
* Load one or more CRLs and add them to the chained list
*/
int mbedtls_x509_crl_parse_file( mbedtls_x509_crl *chain, const char *path )
{
int ret;
size_t n;
unsigned char *buf;
if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 )
return( ret );
ret = mbedtls_x509_crl_parse( chain, buf, n );
mbedtls_platform_zeroize( buf, n );
mbedtls_free( buf );
return( ret );
}
#endif /* MBEDTLS_FS_IO */
/*
* Return an informational string about the certificate.
*/
#define BEFORE_COLON 14
#define BC "14"
/*
* Return an informational string about the CRL.
*/
int mbedtls_x509_crl_info( char *buf, size_t size, const char *prefix,
const mbedtls_x509_crl *crl )
{
int ret;
size_t n;
char *p;
const mbedtls_x509_crl_entry *entry;
p = buf;
n = size;
ret = mbedtls_snprintf( p, n, "%sCRL version : %d",
prefix, crl->version );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n%sissuer name : ", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_x509_dn_gets( p, n, &crl->issuer );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n%sthis update : " \
"%04d-%02d-%02d %02d:%02d:%02d", prefix,
crl->this_update.year, crl->this_update.mon,
crl->this_update.day, crl->this_update.hour,
crl->this_update.min, crl->this_update.sec );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n%snext update : " \
"%04d-%02d-%02d %02d:%02d:%02d", prefix,
crl->next_update.year, crl->next_update.mon,
crl->next_update.day, crl->next_update.hour,
crl->next_update.min, crl->next_update.sec );
MBEDTLS_X509_SAFE_SNPRINTF;
entry = &crl->entry;
ret = mbedtls_snprintf( p, n, "\n%sRevoked certificates:",
prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
while( entry != NULL && entry->raw.len != 0 )
{
ret = mbedtls_snprintf( p, n, "\n%sserial number: ",
prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_x509_serial_gets( p, n, &entry->serial );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, " revocation date: " \
"%04d-%02d-%02d %02d:%02d:%02d",
entry->revocation_date.year, entry->revocation_date.mon,
entry->revocation_date.day, entry->revocation_date.hour,
entry->revocation_date.min, entry->revocation_date.sec );
MBEDTLS_X509_SAFE_SNPRINTF;
entry = entry->next;
}
ret = mbedtls_snprintf( p, n, "\n%ssigned using : ", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_x509_sig_alg_gets( p, n, &crl->sig_oid, crl->sig_pk, crl->sig_md,
crl->sig_opts );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n" );
MBEDTLS_X509_SAFE_SNPRINTF;
return( (int) ( size - n ) );
}
/*
* Initialize a CRL chain
*/
void mbedtls_x509_crl_init( mbedtls_x509_crl *crl )
{
memset( crl, 0, sizeof(mbedtls_x509_crl) );
}
/*
* Unallocate all CRL data
*/
void mbedtls_x509_crl_free( mbedtls_x509_crl *crl )
{
mbedtls_x509_crl *crl_cur = crl;
mbedtls_x509_crl *crl_prv;
mbedtls_x509_name *name_cur;
mbedtls_x509_name *name_prv;
mbedtls_x509_crl_entry *entry_cur;
mbedtls_x509_crl_entry *entry_prv;
if( crl == NULL )
return;
do
{
#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
mbedtls_free( crl_cur->sig_opts );
#endif
name_cur = crl_cur->issuer.next;
while( name_cur != NULL )
{
name_prv = name_cur;
name_cur = name_cur->next;
mbedtls_platform_zeroize( name_prv, sizeof( mbedtls_x509_name ) );
mbedtls_free( name_prv );
}
entry_cur = crl_cur->entry.next;
while( entry_cur != NULL )
{
entry_prv = entry_cur;
entry_cur = entry_cur->next;
mbedtls_platform_zeroize( entry_prv,
sizeof( mbedtls_x509_crl_entry ) );
mbedtls_free( entry_prv );
}
if( crl_cur->raw.p != NULL )
{
mbedtls_platform_zeroize( crl_cur->raw.p, crl_cur->raw.len );
mbedtls_free( crl_cur->raw.p );
}
crl_cur = crl_cur->next;
}
while( crl_cur != NULL );
crl_cur = crl;
do
{
crl_prv = crl_cur;
crl_cur = crl_cur->next;
mbedtls_platform_zeroize( crl_prv, sizeof( mbedtls_x509_crl ) );
if( crl_prv != crl )
mbedtls_free( crl_prv );
}
while( crl_cur != NULL );
}
#endif /* MBEDTLS_X509_CRL_PARSE_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/x509_crl.c | C | apache-2.0 | 21,503 |
/*
* X.509 certificate parsing and verification
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The ITU-T X.509 standard defines a certificate format for PKI.
*
* http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs)
* http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs)
* http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10)
*
* http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf
* http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
*
* [SIRO] https://cabforum.org/wp-content/uploads/Chunghwatelecom201503cabforumV4.pdf
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_X509_CRT_PARSE_C)
#include "mbedtls/x509_crt.h"
#include "mbedtls/oid.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_PEM_PARSE_C)
#include "mbedtls/pem.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_free free
#define mbedtls_calloc calloc
#define mbedtls_snprintf snprintf
#endif
#if defined(MBEDTLS_THREADING_C)
#include "mbedtls/threading.h"
#endif
#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
#include <windows.h>
#else
#include <time.h>
#endif
#if defined(MBEDTLS_FS_IO)
#include <stdio.h>
#if !defined(_WIN32) || defined(EFIX64) || defined(EFI32)
#include <sys/types.h>
#include <sys/stat.h>
#include <dirent.h>
#endif /* !_WIN32 || EFIX64 || EFI32 */
#endif
/*
* Item in a verification chain: cert and flags for it
*/
typedef struct {
mbedtls_x509_crt *crt;
uint32_t flags;
} x509_crt_verify_chain_item;
/*
* Max size of verification chain: end-entity + intermediates + trusted root
*/
#define X509_MAX_VERIFY_CHAIN_SIZE ( MBEDTLS_X509_MAX_INTERMEDIATE_CA + 2 )
/*
* Default profile
*/
const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_default =
{
#if defined(MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES)
/* Allow SHA-1 (weak, but still safe in controlled environments) */
MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA1 ) |
#endif
/* Only SHA-2 hashes */
MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA224 ) |
MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA256 ) |
MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA384 ) |
MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA512 ),
0xFFFFFFF, /* Any PK alg */
0xFFFFFFF, /* Any curve */
2048,
};
/*
* Next-default profile
*/
const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_next =
{
/* Hashes from SHA-256 and above */
MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA256 ) |
MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA384 ) |
MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA512 ),
0xFFFFFFF, /* Any PK alg */
#if defined(MBEDTLS_ECP_C)
/* Curves at or above 128-bit security level */
MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP256R1 ) |
MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP384R1 ) |
MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP521R1 ) |
MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_BP256R1 ) |
MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_BP384R1 ) |
MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_BP512R1 ) |
MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP256K1 ),
#else
0,
#endif
2048,
};
/*
* NSA Suite B Profile
*/
const mbedtls_x509_crt_profile mbedtls_x509_crt_profile_suiteb =
{
/* Only SHA-256 and 384 */
MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA256 ) |
MBEDTLS_X509_ID_FLAG( MBEDTLS_MD_SHA384 ),
/* Only ECDSA */
MBEDTLS_X509_ID_FLAG( MBEDTLS_PK_ECDSA ) |
MBEDTLS_X509_ID_FLAG( MBEDTLS_PK_ECKEY ),
#if defined(MBEDTLS_ECP_C)
/* Only NIST P-256 and P-384 */
MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP256R1 ) |
MBEDTLS_X509_ID_FLAG( MBEDTLS_ECP_DP_SECP384R1 ),
#else
0,
#endif
0,
};
/*
* Check md_alg against profile
* Return 0 if md_alg is acceptable for this profile, -1 otherwise
*/
static int x509_profile_check_md_alg( const mbedtls_x509_crt_profile *profile,
mbedtls_md_type_t md_alg )
{
if( md_alg == MBEDTLS_MD_NONE )
return( -1 );
if( ( profile->allowed_mds & MBEDTLS_X509_ID_FLAG( md_alg ) ) != 0 )
return( 0 );
return( -1 );
}
/*
* Check pk_alg against profile
* Return 0 if pk_alg is acceptable for this profile, -1 otherwise
*/
static int x509_profile_check_pk_alg( const mbedtls_x509_crt_profile *profile,
mbedtls_pk_type_t pk_alg )
{
if( pk_alg == MBEDTLS_PK_NONE )
return( -1 );
if( ( profile->allowed_pks & MBEDTLS_X509_ID_FLAG( pk_alg ) ) != 0 )
return( 0 );
return( -1 );
}
/*
* Check key against profile
* Return 0 if pk is acceptable for this profile, -1 otherwise
*/
static int x509_profile_check_key( const mbedtls_x509_crt_profile *profile,
const mbedtls_pk_context *pk )
{
const mbedtls_pk_type_t pk_alg = mbedtls_pk_get_type( pk );
#if defined(MBEDTLS_RSA_C)
if( pk_alg == MBEDTLS_PK_RSA || pk_alg == MBEDTLS_PK_RSASSA_PSS )
{
if( mbedtls_pk_get_bitlen( pk ) >= profile->rsa_min_bitlen )
return( 0 );
return( -1 );
}
#endif
#if defined(MBEDTLS_ECP_C)
if( pk_alg == MBEDTLS_PK_ECDSA ||
pk_alg == MBEDTLS_PK_ECKEY ||
pk_alg == MBEDTLS_PK_ECKEY_DH )
{
const mbedtls_ecp_group_id gid = mbedtls_pk_ec( *pk )->grp.id;
if( gid == MBEDTLS_ECP_DP_NONE )
return( -1 );
if( ( profile->allowed_curves & MBEDTLS_X509_ID_FLAG( gid ) ) != 0 )
return( 0 );
return( -1 );
}
#endif
return( -1 );
}
/*
* Like memcmp, but case-insensitive and always returns -1 if different
*/
static int x509_memcasecmp( const void *s1, const void *s2, size_t len )
{
size_t i;
unsigned char diff;
const unsigned char *n1 = s1, *n2 = s2;
for( i = 0; i < len; i++ )
{
diff = n1[i] ^ n2[i];
if( diff == 0 )
continue;
if( diff == 32 &&
( ( n1[i] >= 'a' && n1[i] <= 'z' ) ||
( n1[i] >= 'A' && n1[i] <= 'Z' ) ) )
{
continue;
}
return( -1 );
}
return( 0 );
}
/*
* Return 0 if name matches wildcard, -1 otherwise
*/
static int x509_check_wildcard( const char *cn, const mbedtls_x509_buf *name )
{
size_t i;
size_t cn_idx = 0, cn_len = strlen( cn );
/* We can't have a match if there is no wildcard to match */
if( name->len < 3 || name->p[0] != '*' || name->p[1] != '.' )
return( -1 );
for( i = 0; i < cn_len; ++i )
{
if( cn[i] == '.' )
{
cn_idx = i;
break;
}
}
if( cn_idx == 0 )
return( -1 );
if( cn_len - cn_idx == name->len - 1 &&
x509_memcasecmp( name->p + 1, cn + cn_idx, name->len - 1 ) == 0 )
{
return( 0 );
}
return( -1 );
}
/*
* Compare two X.509 strings, case-insensitive, and allowing for some encoding
* variations (but not all).
*
* Return 0 if equal, -1 otherwise.
*/
static int x509_string_cmp( const mbedtls_x509_buf *a, const mbedtls_x509_buf *b )
{
if( a->tag == b->tag &&
a->len == b->len &&
memcmp( a->p, b->p, b->len ) == 0 )
{
return( 0 );
}
if( ( a->tag == MBEDTLS_ASN1_UTF8_STRING || a->tag == MBEDTLS_ASN1_PRINTABLE_STRING ) &&
( b->tag == MBEDTLS_ASN1_UTF8_STRING || b->tag == MBEDTLS_ASN1_PRINTABLE_STRING ) &&
a->len == b->len &&
x509_memcasecmp( a->p, b->p, b->len ) == 0 )
{
return( 0 );
}
return( -1 );
}
/*
* Compare two X.509 Names (aka rdnSequence).
*
* See RFC 5280 section 7.1, though we don't implement the whole algorithm:
* we sometimes return unequal when the full algorithm would return equal,
* but never the other way. (In particular, we don't do Unicode normalisation
* or space folding.)
*
* Return 0 if equal, -1 otherwise.
*/
static int x509_name_cmp( const mbedtls_x509_name *a, const mbedtls_x509_name *b )
{
/* Avoid recursion, it might not be optimised by the compiler */
while( a != NULL || b != NULL )
{
if( a == NULL || b == NULL )
return( -1 );
/* type */
if( a->oid.tag != b->oid.tag ||
a->oid.len != b->oid.len ||
memcmp( a->oid.p, b->oid.p, b->oid.len ) != 0 )
{
return( -1 );
}
/* value */
if( x509_string_cmp( &a->val, &b->val ) != 0 )
return( -1 );
/* structure of the list of sets */
if( a->next_merged != b->next_merged )
return( -1 );
a = a->next;
b = b->next;
}
/* a == NULL == b */
return( 0 );
}
/*
* Reset (init or clear) a verify_chain
*/
static void x509_crt_verify_chain_reset(
mbedtls_x509_crt_verify_chain *ver_chain )
{
size_t i;
for( i = 0; i < MBEDTLS_X509_MAX_VERIFY_CHAIN_SIZE; i++ )
{
ver_chain->items[i].crt = NULL;
/* Modify for AliOS Things begin. 2019-06-17 */
ver_chain->items[i].flags = (uint32_t)-1;
/* Modify for AliOS Things end. 2019-06-17 */
}
ver_chain->len = 0;
}
/*
* Version ::= INTEGER { v1(0), v2(1), v3(2) }
*/
static int x509_get_version( unsigned char **p,
const unsigned char *end,
int *ver )
{
int ret;
size_t len;
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | 0 ) ) != 0 )
{
if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
{
*ver = 0;
return( 0 );
}
return( ret );
}
end = *p + len;
if( ( ret = mbedtls_asn1_get_int( p, end, ver ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_VERSION + ret );
if( *p != end )
return( MBEDTLS_ERR_X509_INVALID_VERSION +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
/*
* Validity ::= SEQUENCE {
* notBefore Time,
* notAfter Time }
*/
static int x509_get_dates( unsigned char **p,
const unsigned char *end,
mbedtls_x509_time *from,
mbedtls_x509_time *to )
{
int ret;
size_t len;
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_DATE + ret );
end = *p + len;
if( ( ret = mbedtls_x509_get_time( p, end, from ) ) != 0 )
return( ret );
if( ( ret = mbedtls_x509_get_time( p, end, to ) ) != 0 )
return( ret );
if( *p != end )
return( MBEDTLS_ERR_X509_INVALID_DATE +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
/*
* X.509 v2/v3 unique identifier (not parsed)
*/
static int x509_get_uid( unsigned char **p,
const unsigned char *end,
mbedtls_x509_buf *uid, int n )
{
int ret;
if( *p == end )
return( 0 );
uid->tag = **p;
if( ( ret = mbedtls_asn1_get_tag( p, end, &uid->len,
MBEDTLS_ASN1_CONTEXT_SPECIFIC | MBEDTLS_ASN1_CONSTRUCTED | n ) ) != 0 )
{
if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
return( 0 );
return( ret );
}
uid->p = *p;
*p += uid->len;
return( 0 );
}
static int x509_get_basic_constraints( unsigned char **p,
const unsigned char *end,
int *ca_istrue,
int *max_pathlen )
{
int ret;
size_t len;
/*
* BasicConstraints ::= SEQUENCE {
* cA BOOLEAN DEFAULT FALSE,
* pathLenConstraint INTEGER (0..MAX) OPTIONAL }
*/
*ca_istrue = 0; /* DEFAULT FALSE */
*max_pathlen = 0; /* endless */
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
if( *p == end )
return( 0 );
if( ( ret = mbedtls_asn1_get_bool( p, end, ca_istrue ) ) != 0 )
{
if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
ret = mbedtls_asn1_get_int( p, end, ca_istrue );
if( ret != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
if( *ca_istrue != 0 )
*ca_istrue = 1;
}
if( *p == end )
return( 0 );
if( ( ret = mbedtls_asn1_get_int( p, end, max_pathlen ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
if( *p != end )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
(*max_pathlen)++;
return( 0 );
}
static int x509_get_ns_cert_type( unsigned char **p,
const unsigned char *end,
unsigned char *ns_cert_type)
{
int ret;
mbedtls_x509_bitstring bs = { 0, 0, NULL };
if( ( ret = mbedtls_asn1_get_bitstring( p, end, &bs ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
if( bs.len != 1 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_INVALID_LENGTH );
/* Get actual bitstring */
*ns_cert_type = *bs.p;
return( 0 );
}
static int x509_get_key_usage( unsigned char **p,
const unsigned char *end,
unsigned int *key_usage)
{
int ret;
size_t i;
mbedtls_x509_bitstring bs = { 0, 0, NULL };
if( ( ret = mbedtls_asn1_get_bitstring( p, end, &bs ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
if( bs.len < 1 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_INVALID_LENGTH );
/* Get actual bitstring */
*key_usage = 0;
for( i = 0; i < bs.len && i < sizeof( unsigned int ); i++ )
{
*key_usage |= (unsigned int) bs.p[i] << (8*i);
}
return( 0 );
}
/*
* ExtKeyUsageSyntax ::= SEQUENCE SIZE (1..MAX) OF KeyPurposeId
*
* KeyPurposeId ::= OBJECT IDENTIFIER
*/
static int x509_get_ext_key_usage( unsigned char **p,
const unsigned char *end,
mbedtls_x509_sequence *ext_key_usage)
{
int ret;
if( ( ret = mbedtls_asn1_get_sequence_of( p, end, ext_key_usage, MBEDTLS_ASN1_OID ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
/* Sequence length must be >= 1 */
if( ext_key_usage->buf.p == NULL )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_INVALID_LENGTH );
return( 0 );
}
/*
* SubjectAltName ::= GeneralNames
*
* GeneralNames ::= SEQUENCE SIZE (1..MAX) OF GeneralName
*
* GeneralName ::= CHOICE {
* otherName [0] OtherName,
* rfc822Name [1] IA5String,
* dNSName [2] IA5String,
* x400Address [3] ORAddress,
* directoryName [4] Name,
* ediPartyName [5] EDIPartyName,
* uniformResourceIdentifier [6] IA5String,
* iPAddress [7] OCTET STRING,
* registeredID [8] OBJECT IDENTIFIER }
*
* OtherName ::= SEQUENCE {
* type-id OBJECT IDENTIFIER,
* value [0] EXPLICIT ANY DEFINED BY type-id }
*
* EDIPartyName ::= SEQUENCE {
* nameAssigner [0] DirectoryString OPTIONAL,
* partyName [1] DirectoryString }
*
* Modify for AliOS Things begin. 2019-06-17
* NOTE: we only parse and use dNSName and URI at this point.
* Modify for AliOS Things end. 2019-06-17
*/
static int x509_get_subject_alt_name( unsigned char **p,
const unsigned char *end,
mbedtls_x509_sequence *subject_alt_name )
{
int ret;
size_t len, tag_len;
mbedtls_asn1_buf *buf;
unsigned char tag;
mbedtls_asn1_sequence *cur = subject_alt_name;
/* Get main sequence tag */
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
if( *p + len != end )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
while( *p < end )
{
if( ( end - *p ) < 1 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_OUT_OF_DATA );
tag = **p;
(*p)++;
if( ( ret = mbedtls_asn1_get_len( p, end, &tag_len ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
if( ( tag & MBEDTLS_ASN1_TAG_CLASS_MASK ) !=
MBEDTLS_ASN1_CONTEXT_SPECIFIC )
{
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
}
/* Modify for AliOS Things begin. 2019-06-17 */
/* Skip everything but DNS name and URI */
if( ( tag != ( MBEDTLS_ASN1_CONTEXT_SPECIFIC | 2 )) &&
( tag != ( MBEDTLS_ASN1_CONTEXT_SPECIFIC | 6 )))
/* Modify for AliOS Things end. 2019-06-17 */
{
*p += tag_len;
continue;
}
/* Allocate and assign next pointer */
if( cur->buf.p != NULL )
{
if( cur->next != NULL )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS );
cur->next = mbedtls_calloc( 1, sizeof( mbedtls_asn1_sequence ) );
if( cur->next == NULL )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_ALLOC_FAILED );
cur = cur->next;
}
buf = &(cur->buf);
buf->tag = tag;
buf->p = *p;
buf->len = tag_len;
*p += buf->len;
}
/* Set final sequence entry's next pointer to NULL */
cur->next = NULL;
if( *p != end )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
/*
* X.509 v3 extensions
*
*/
static int x509_get_crt_ext( unsigned char **p,
const unsigned char *end,
mbedtls_x509_crt *crt )
{
int ret;
size_t len;
unsigned char *end_ext_data, *end_ext_octet;
if( ( ret = mbedtls_x509_get_ext( p, end, &crt->v3_ext, 3 ) ) != 0 )
{
if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
return( 0 );
return( ret );
}
while( *p < end )
{
/*
* Extension ::= SEQUENCE {
* extnID OBJECT IDENTIFIER,
* critical BOOLEAN DEFAULT FALSE,
* extnValue OCTET STRING }
*/
mbedtls_x509_buf extn_oid = {0, 0, NULL};
int is_critical = 0; /* DEFAULT FALSE */
int ext_type = 0;
if( ( ret = mbedtls_asn1_get_tag( p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
end_ext_data = *p + len;
/* Get extension ID */
if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &extn_oid.len,
MBEDTLS_ASN1_OID ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
extn_oid.tag = MBEDTLS_ASN1_OID;
extn_oid.p = *p;
*p += extn_oid.len;
/* Get optional critical */
if( ( ret = mbedtls_asn1_get_bool( p, end_ext_data, &is_critical ) ) != 0 &&
( ret != MBEDTLS_ERR_ASN1_UNEXPECTED_TAG ) )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
/* Data should be octet string type */
if( ( ret = mbedtls_asn1_get_tag( p, end_ext_data, &len,
MBEDTLS_ASN1_OCTET_STRING ) ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS + ret );
end_ext_octet = *p + len;
if( end_ext_octet != end_ext_data )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
/*
* Detect supported extensions
*/
ret = mbedtls_oid_get_x509_ext_type( &extn_oid, &ext_type );
if( ret != 0 )
{
/* No parser found, skip extension */
*p = end_ext_octet;
#if !defined(MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION)
if( is_critical )
{
/* Data is marked as critical: fail */
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_UNEXPECTED_TAG );
}
#endif
continue;
}
/* Forbid repeated extensions */
if( ( crt->ext_types & ext_type ) != 0 )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS );
crt->ext_types |= ext_type;
switch( ext_type )
{
case MBEDTLS_X509_EXT_BASIC_CONSTRAINTS:
/* Parse basic constraints */
if( ( ret = x509_get_basic_constraints( p, end_ext_octet,
&crt->ca_istrue, &crt->max_pathlen ) ) != 0 )
return( ret );
break;
case MBEDTLS_X509_EXT_KEY_USAGE:
/* Parse key usage */
if( ( ret = x509_get_key_usage( p, end_ext_octet,
&crt->key_usage ) ) != 0 )
return( ret );
break;
case MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE:
/* Parse extended key usage */
if( ( ret = x509_get_ext_key_usage( p, end_ext_octet,
&crt->ext_key_usage ) ) != 0 )
return( ret );
break;
case MBEDTLS_X509_EXT_SUBJECT_ALT_NAME:
/* Parse subject alt name */
if( ( ret = x509_get_subject_alt_name( p, end_ext_octet,
&crt->subject_alt_names ) ) != 0 )
return( ret );
break;
case MBEDTLS_X509_EXT_NS_CERT_TYPE:
/* Parse netscape certificate type */
if( ( ret = x509_get_ns_cert_type( p, end_ext_octet,
&crt->ns_cert_type ) ) != 0 )
return( ret );
break;
default:
return( MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE );
}
}
if( *p != end )
return( MBEDTLS_ERR_X509_INVALID_EXTENSIONS +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
return( 0 );
}
/*
* Parse and fill a single X.509 certificate in DER format
*/
static int x509_crt_parse_der_core( mbedtls_x509_crt *crt, const unsigned char *buf,
size_t buflen )
{
int ret;
size_t len;
unsigned char *p, *end, *crt_end;
mbedtls_x509_buf sig_params1, sig_params2, sig_oid2;
memset( &sig_params1, 0, sizeof( mbedtls_x509_buf ) );
memset( &sig_params2, 0, sizeof( mbedtls_x509_buf ) );
memset( &sig_oid2, 0, sizeof( mbedtls_x509_buf ) );
/*
* Check for valid input
*/
if( crt == NULL || buf == NULL )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
// Use the original buffer until we figure out actual length
p = (unsigned char*) buf;
len = buflen;
end = p + len;
/*
* Certificate ::= SEQUENCE {
* tbsCertificate TBSCertificate,
* signatureAlgorithm AlgorithmIdentifier,
* signatureValue BIT STRING }
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_crt_free( crt );
return( MBEDTLS_ERR_X509_INVALID_FORMAT );
}
if( len > (size_t) ( end - p ) )
{
mbedtls_x509_crt_free( crt );
return( MBEDTLS_ERR_X509_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
crt_end = p + len;
// Create and populate a new buffer for the raw field
crt->raw.len = crt_end - buf;
crt->raw.p = p = mbedtls_calloc( 1, crt->raw.len );
if( p == NULL )
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
memcpy( p, buf, crt->raw.len );
// Direct pointers to the new buffer
p += crt->raw.len - len;
end = crt_end = p + len;
/*
* TBSCertificate ::= SEQUENCE {
*/
crt->tbs.p = p;
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_crt_free( crt );
return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
}
end = p + len;
crt->tbs.len = end - crt->tbs.p;
/*
* Version ::= INTEGER { v1(0), v2(1), v3(2) }
*
* CertificateSerialNumber ::= INTEGER
*
* signature AlgorithmIdentifier
*/
if( ( ret = x509_get_version( &p, end, &crt->version ) ) != 0 ||
( ret = mbedtls_x509_get_serial( &p, end, &crt->serial ) ) != 0 ||
( ret = mbedtls_x509_get_alg( &p, end, &crt->sig_oid,
&sig_params1 ) ) != 0 )
{
mbedtls_x509_crt_free( crt );
return( ret );
}
if( crt->version < 0 || crt->version > 2 )
{
mbedtls_x509_crt_free( crt );
return( MBEDTLS_ERR_X509_UNKNOWN_VERSION );
}
crt->version++;
if( ( ret = mbedtls_x509_get_sig_alg( &crt->sig_oid, &sig_params1,
&crt->sig_md, &crt->sig_pk,
&crt->sig_opts ) ) != 0 )
{
mbedtls_x509_crt_free( crt );
return( ret );
}
/*
* issuer Name
*/
crt->issuer_raw.p = p;
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_crt_free( crt );
return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
}
if( ( ret = mbedtls_x509_get_name( &p, p + len, &crt->issuer ) ) != 0 )
{
mbedtls_x509_crt_free( crt );
return( ret );
}
crt->issuer_raw.len = p - crt->issuer_raw.p;
/*
* Validity ::= SEQUENCE {
* notBefore Time,
* notAfter Time }
*
*/
if( ( ret = x509_get_dates( &p, end, &crt->valid_from,
&crt->valid_to ) ) != 0 )
{
mbedtls_x509_crt_free( crt );
return( ret );
}
/*
* subject Name
*/
crt->subject_raw.p = p;
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_crt_free( crt );
return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
}
if( len && ( ret = mbedtls_x509_get_name( &p, p + len, &crt->subject ) ) != 0 )
{
mbedtls_x509_crt_free( crt );
return( ret );
}
crt->subject_raw.len = p - crt->subject_raw.p;
/*
* SubjectPublicKeyInfo
*/
if( ( ret = mbedtls_pk_parse_subpubkey( &p, end, &crt->pk ) ) != 0 )
{
mbedtls_x509_crt_free( crt );
return( ret );
}
/*
* issuerUniqueID [1] IMPLICIT UniqueIdentifier OPTIONAL,
* -- If present, version shall be v2 or v3
* subjectUniqueID [2] IMPLICIT UniqueIdentifier OPTIONAL,
* -- If present, version shall be v2 or v3
* extensions [3] EXPLICIT Extensions OPTIONAL
* -- If present, version shall be v3
*/
if( crt->version == 2 || crt->version == 3 )
{
ret = x509_get_uid( &p, end, &crt->issuer_id, 1 );
if( ret != 0 )
{
mbedtls_x509_crt_free( crt );
return( ret );
}
}
if( crt->version == 2 || crt->version == 3 )
{
ret = x509_get_uid( &p, end, &crt->subject_id, 2 );
if( ret != 0 )
{
mbedtls_x509_crt_free( crt );
return( ret );
}
}
#if !defined(MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3)
if( crt->version == 3 )
#endif
{
ret = x509_get_crt_ext( &p, end, crt );
if( ret != 0 )
{
mbedtls_x509_crt_free( crt );
return( ret );
}
}
if( p != end )
{
mbedtls_x509_crt_free( crt );
return( MBEDTLS_ERR_X509_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
end = crt_end;
/*
* }
* -- end of TBSCertificate
*
* signatureAlgorithm AlgorithmIdentifier,
* signatureValue BIT STRING
*/
if( ( ret = mbedtls_x509_get_alg( &p, end, &sig_oid2, &sig_params2 ) ) != 0 )
{
mbedtls_x509_crt_free( crt );
return( ret );
}
if( crt->sig_oid.len != sig_oid2.len ||
memcmp( crt->sig_oid.p, sig_oid2.p, crt->sig_oid.len ) != 0 ||
sig_params1.len != sig_params2.len ||
( sig_params1.len != 0 &&
memcmp( sig_params1.p, sig_params2.p, sig_params1.len ) != 0 ) )
{
mbedtls_x509_crt_free( crt );
return( MBEDTLS_ERR_X509_SIG_MISMATCH );
}
if( ( ret = mbedtls_x509_get_sig( &p, end, &crt->sig ) ) != 0 )
{
mbedtls_x509_crt_free( crt );
return( ret );
}
if( p != end )
{
mbedtls_x509_crt_free( crt );
return( MBEDTLS_ERR_X509_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
return( 0 );
}
/*
* Parse one X.509 certificate in DER format from a buffer and add them to a
* chained list
*/
int mbedtls_x509_crt_parse_der( mbedtls_x509_crt *chain, const unsigned char *buf,
size_t buflen )
{
int ret;
mbedtls_x509_crt *crt = chain, *prev = NULL;
/*
* Check for valid input
*/
if( crt == NULL || buf == NULL )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
while( crt->version != 0 && crt->next != NULL )
{
prev = crt;
crt = crt->next;
}
/*
* Add new certificate on the end of the chain if needed.
*/
if( crt->version != 0 && crt->next == NULL )
{
crt->next = mbedtls_calloc( 1, sizeof( mbedtls_x509_crt ) );
if( crt->next == NULL )
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
prev = crt;
mbedtls_x509_crt_init( crt->next );
crt = crt->next;
}
if( ( ret = x509_crt_parse_der_core( crt, buf, buflen ) ) != 0 )
{
if( prev )
prev->next = NULL;
if( crt != chain )
mbedtls_free( crt );
return( ret );
}
return( 0 );
}
/*
* Parse one or more PEM certificates from a buffer and add them to the chained
* list
*/
int mbedtls_x509_crt_parse( mbedtls_x509_crt *chain, const unsigned char *buf, size_t buflen )
{
#if defined(MBEDTLS_PEM_PARSE_C)
int success = 0, first_error = 0, total_failed = 0;
int buf_format = MBEDTLS_X509_FORMAT_DER;
#endif
/*
* Check for valid input
*/
if( chain == NULL || buf == NULL )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
/*
* Determine buffer content. Buffer contains either one DER certificate or
* one or more PEM certificates.
*/
#if defined(MBEDTLS_PEM_PARSE_C)
if( buflen != 0 && buf[buflen - 1] == '\0' &&
strstr( (const char *) buf, "-----BEGIN CERTIFICATE-----" ) != NULL )
{
buf_format = MBEDTLS_X509_FORMAT_PEM;
}
if( buf_format == MBEDTLS_X509_FORMAT_DER )
return mbedtls_x509_crt_parse_der( chain, buf, buflen );
#else
return mbedtls_x509_crt_parse_der( chain, buf, buflen );
#endif
#if defined(MBEDTLS_PEM_PARSE_C)
if( buf_format == MBEDTLS_X509_FORMAT_PEM )
{
int ret;
mbedtls_pem_context pem;
/* 1 rather than 0 since the terminating NULL byte is counted in */
while( buflen > 1 )
{
size_t use_len;
mbedtls_pem_init( &pem );
/* If we get there, we know the string is null-terminated */
ret = mbedtls_pem_read_buffer( &pem,
"-----BEGIN CERTIFICATE-----",
"-----END CERTIFICATE-----",
buf, NULL, 0, &use_len );
if( ret == 0 )
{
/*
* Was PEM encoded
*/
buflen -= use_len;
buf += use_len;
}
else if( ret == MBEDTLS_ERR_PEM_BAD_INPUT_DATA )
{
return( ret );
}
else if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
{
mbedtls_pem_free( &pem );
/*
* PEM header and footer were found
*/
buflen -= use_len;
buf += use_len;
if( first_error == 0 )
first_error = ret;
total_failed++;
continue;
}
else
break;
ret = mbedtls_x509_crt_parse_der( chain, pem.buf, pem.buflen );
mbedtls_pem_free( &pem );
if( ret != 0 )
{
/*
* Quit parsing on a memory error
*/
if( ret == MBEDTLS_ERR_X509_ALLOC_FAILED )
return( ret );
if( first_error == 0 )
first_error = ret;
total_failed++;
continue;
}
success = 1;
}
}
if( success )
return( total_failed );
else if( first_error )
return( first_error );
else
return( MBEDTLS_ERR_X509_CERT_UNKNOWN_FORMAT );
#endif /* MBEDTLS_PEM_PARSE_C */
}
#if defined(MBEDTLS_FS_IO)
/*
* Load one or more certificates and add them to the chained list
*/
int mbedtls_x509_crt_parse_file( mbedtls_x509_crt *chain, const char *path )
{
int ret;
size_t n;
unsigned char *buf;
if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 )
return( ret );
ret = mbedtls_x509_crt_parse( chain, buf, n );
mbedtls_platform_zeroize( buf, n );
mbedtls_free( buf );
return( ret );
}
int mbedtls_x509_crt_parse_path( mbedtls_x509_crt *chain, const char *path )
{
int ret = 0;
#if defined(_WIN32) && !defined(EFIX64) && !defined(EFI32)
int w_ret;
WCHAR szDir[MAX_PATH];
char filename[MAX_PATH];
char *p;
size_t len = strlen( path );
WIN32_FIND_DATAW file_data;
HANDLE hFind;
if( len > MAX_PATH - 3 )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
memset( szDir, 0, sizeof(szDir) );
memset( filename, 0, MAX_PATH );
memcpy( filename, path, len );
filename[len++] = '\\';
p = filename + len;
filename[len++] = '*';
w_ret = MultiByteToWideChar( CP_ACP, 0, filename, (int)len, szDir,
MAX_PATH - 3 );
if( w_ret == 0 )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
hFind = FindFirstFileW( szDir, &file_data );
if( hFind == INVALID_HANDLE_VALUE )
return( MBEDTLS_ERR_X509_FILE_IO_ERROR );
len = MAX_PATH - len;
do
{
memset( p, 0, len );
if( file_data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY )
continue;
w_ret = WideCharToMultiByte( CP_ACP, 0, file_data.cFileName,
lstrlenW( file_data.cFileName ),
p, (int) len - 1,
NULL, NULL );
if( w_ret == 0 )
{
ret = MBEDTLS_ERR_X509_FILE_IO_ERROR;
goto cleanup;
}
w_ret = mbedtls_x509_crt_parse_file( chain, filename );
if( w_ret < 0 )
ret++;
else
ret += w_ret;
}
while( FindNextFileW( hFind, &file_data ) != 0 );
if( GetLastError() != ERROR_NO_MORE_FILES )
ret = MBEDTLS_ERR_X509_FILE_IO_ERROR;
cleanup:
FindClose( hFind );
#else /* _WIN32 */
int t_ret;
int snp_ret;
struct stat sb;
struct dirent *entry;
char entry_name[MBEDTLS_X509_MAX_FILE_PATH_LEN];
DIR *dir = opendir( path );
if( dir == NULL )
return( MBEDTLS_ERR_X509_FILE_IO_ERROR );
#if defined(MBEDTLS_THREADING_C)
if( ( ret = mbedtls_mutex_lock( &mbedtls_threading_readdir_mutex ) ) != 0 )
{
closedir( dir );
return( ret );
}
#endif /* MBEDTLS_THREADING_C */
while( ( entry = readdir( dir ) ) != NULL )
{
snp_ret = mbedtls_snprintf( entry_name, sizeof entry_name,
"%s/%s", path, entry->d_name );
if( snp_ret < 0 || (size_t)snp_ret >= sizeof entry_name )
{
ret = MBEDTLS_ERR_X509_BUFFER_TOO_SMALL;
goto cleanup;
}
else if( stat( entry_name, &sb ) == -1 )
{
ret = MBEDTLS_ERR_X509_FILE_IO_ERROR;
goto cleanup;
}
if( !S_ISREG( sb.st_mode ) )
continue;
// Ignore parse errors
//
t_ret = mbedtls_x509_crt_parse_file( chain, entry_name );
if( t_ret < 0 )
ret++;
else
ret += t_ret;
}
cleanup:
closedir( dir );
#if defined(MBEDTLS_THREADING_C)
if( mbedtls_mutex_unlock( &mbedtls_threading_readdir_mutex ) != 0 )
ret = MBEDTLS_ERR_THREADING_MUTEX_ERROR;
#endif /* MBEDTLS_THREADING_C */
#endif /* _WIN32 */
return( ret );
}
#endif /* MBEDTLS_FS_IO */
static int x509_info_subject_alt_name( char **buf, size_t *size,
const mbedtls_x509_sequence *subject_alt_name )
{
size_t i;
size_t n = *size;
char *p = *buf;
const mbedtls_x509_sequence *cur = subject_alt_name;
const char *sep = "";
size_t sep_len = 0;
while( cur != NULL )
{
if( cur->buf.len + sep_len >= n )
{
*p = '\0';
return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL );
}
n -= cur->buf.len + sep_len;
for( i = 0; i < sep_len; i++ )
*p++ = sep[i];
for( i = 0; i < cur->buf.len; i++ )
*p++ = cur->buf.p[i];
sep = ", ";
sep_len = 2;
cur = cur->next;
}
*p = '\0';
*size = n;
*buf = p;
return( 0 );
}
/* Look up order: DNS-ID, URI-ID.
* ID's separator is '\0', end of indicator is double '\0'
*/
static int x509_info_subject_alt_name2( char **buf, size_t *size,
const mbedtls_x509_sequence *subject_alt_name )
{
size_t i;
size_t n = *size;
char *p = *buf;
const mbedtls_x509_sequence *cur = subject_alt_name;
const char sep = '\0';
size_t sep_len = 0;
/* Look up DNS-ID */
while( cur != NULL )
{
if( cur->buf.tag != ( MBEDTLS_ASN1_CONTEXT_SPECIFIC | 2 ) )
{
cur = cur->next;
continue;
}
if( cur->buf.len + sep_len >= n - 1 )
{
*p++ = '\0';
*p = '\0';
return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL );
}
n -= cur->buf.len + sep_len;
for( i = 0; i < sep_len; i++ )
*p++ = sep;
for( i = 0; i < cur->buf.len; i++ )
*p++ = cur->buf.p[i];
sep_len = 1;
cur = cur->next;
}
/* Not found DNS-ID, look up URI-ID */
if( p == *buf )
{
cur = subject_alt_name;
while( cur != NULL )
{
if( cur->buf.tag != ( MBEDTLS_ASN1_CONTEXT_SPECIFIC | 6 ) )
{
cur = cur->next;
continue;
}
if( cur->buf.len + sep_len >= n - 1 )
{
*p++ = '\0';
*p = '\0';
return( MBEDTLS_ERR_X509_BUFFER_TOO_SMALL );
}
n -= cur->buf.len + sep_len;
for( i = 0; i < sep_len; i++ )
*p++ = sep;
for( i = 0; i < cur->buf.len; i++ )
*p++ = cur->buf.p[i];
sep_len = 1;
cur = cur->next;
}
}
*p++ = '\0';
*p = '\0';
*size = n;
*buf = p;
return( 0 );
}
#define PRINT_ITEM(i) \
{ \
ret = mbedtls_snprintf( p, n, "%s" i, sep ); \
MBEDTLS_X509_SAFE_SNPRINTF; \
sep = ", "; \
}
#define CERT_TYPE(type,name) \
if( ns_cert_type & type ) \
PRINT_ITEM( name );
static int x509_info_cert_type( char **buf, size_t *size,
unsigned char ns_cert_type )
{
int ret;
size_t n = *size;
char *p = *buf;
const char *sep = "";
CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT, "SSL Client" );
CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER, "SSL Server" );
CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_EMAIL, "Email" );
CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING, "Object Signing" );
CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_RESERVED, "Reserved" );
CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_SSL_CA, "SSL CA" );
CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA, "Email CA" );
CERT_TYPE( MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA, "Object Signing CA" );
*size = n;
*buf = p;
return( 0 );
}
#define KEY_USAGE(code,name) \
if( key_usage & code ) \
PRINT_ITEM( name );
static int x509_info_key_usage( char **buf, size_t *size,
unsigned int key_usage )
{
int ret;
size_t n = *size;
char *p = *buf;
const char *sep = "";
KEY_USAGE( MBEDTLS_X509_KU_DIGITAL_SIGNATURE, "Digital Signature" );
KEY_USAGE( MBEDTLS_X509_KU_NON_REPUDIATION, "Non Repudiation" );
KEY_USAGE( MBEDTLS_X509_KU_KEY_ENCIPHERMENT, "Key Encipherment" );
KEY_USAGE( MBEDTLS_X509_KU_DATA_ENCIPHERMENT, "Data Encipherment" );
KEY_USAGE( MBEDTLS_X509_KU_KEY_AGREEMENT, "Key Agreement" );
KEY_USAGE( MBEDTLS_X509_KU_KEY_CERT_SIGN, "Key Cert Sign" );
KEY_USAGE( MBEDTLS_X509_KU_CRL_SIGN, "CRL Sign" );
KEY_USAGE( MBEDTLS_X509_KU_ENCIPHER_ONLY, "Encipher Only" );
KEY_USAGE( MBEDTLS_X509_KU_DECIPHER_ONLY, "Decipher Only" );
*size = n;
*buf = p;
return( 0 );
}
static int x509_info_ext_key_usage( char **buf, size_t *size,
const mbedtls_x509_sequence *extended_key_usage )
{
int ret;
const char *desc;
size_t n = *size;
char *p = *buf;
const mbedtls_x509_sequence *cur = extended_key_usage;
const char *sep = "";
while( cur != NULL )
{
if( mbedtls_oid_get_extended_key_usage( &cur->buf, &desc ) != 0 )
desc = "???";
ret = mbedtls_snprintf( p, n, "%s%s", sep, desc );
MBEDTLS_X509_SAFE_SNPRINTF;
sep = ", ";
cur = cur->next;
}
*size = n;
*buf = p;
return( 0 );
}
/* Modify for AliOS Things begin. 2019-06-17 */
/* Get the cn field of a dn of a certificate */
static int x509_get_cn( char *buf, size_t size, const mbedtls_x509_name *dn )
{
int ret;
char dn_buf[MBEDTLS_X509_MAX_DN_NAME_SIZE] = {0};
char *cn = NULL;
if(( buf == NULL) || ( size <= 0 ) || ( dn == NULL ))
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
ret = mbedtls_x509_dn_gets( dn_buf, sizeof(dn_buf), dn );
if( ret > 0)
{
cn = strstr( dn_buf, "CN=" );
if(cn == NULL)
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
cn += 3;
strncpy( buf, cn, size -1 );
buf[size - 1] = 0;
ret = strlen(buf);
}
return ret;
}
/*
* Get the subject identifier of the certificate.
* Look up order: DNS-ID, URI-ID, CN-ID.
* Note: other identifier type is not supported at this point, e.g.
* SRV-ID, for details, read the x509_get_subject_alt_name.
*/
int mbedtls_x509_subjectid_gets( char *buf, size_t size,
const mbedtls_x509_crt *crt )
{
size_t n;
char *p;
if(( buf == NULL) || ( size <= 0 ) || ( crt == NULL ))
{
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
}
p = buf;
n = size;
if( crt->ext_types & MBEDTLS_X509_EXT_SUBJECT_ALT_NAME )
{
x509_info_subject_alt_name2( &p, &n, &crt->subject_alt_names );
if (n < size)
{
return( size - n );
}
}
return x509_get_cn( buf, size, &crt->subject );
}
/* Modify for AliOS Things end. 2019-06-17 */
/*
* Return an informational string about the certificate.
*/
#define BEFORE_COLON 18
#define BC "18"
int mbedtls_x509_crt_info( char *buf, size_t size, const char *prefix,
const mbedtls_x509_crt *crt )
{
int ret;
size_t n;
char *p;
char key_size_str[BEFORE_COLON];
p = buf;
n = size;
if( NULL == crt )
{
ret = mbedtls_snprintf( p, n, "\nCertificate is uninitialised!\n" );
MBEDTLS_X509_SAFE_SNPRINTF;
return( (int) ( size - n ) );
}
ret = mbedtls_snprintf( p, n, "%scert. version : %d\n",
prefix, crt->version );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "%sserial number : ",
prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_x509_serial_gets( p, n, &crt->serial );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n%sissuer name : ", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_x509_dn_gets( p, n, &crt->issuer );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n%ssubject name : ", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_x509_dn_gets( p, n, &crt->subject );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n%sissued on : " \
"%04d-%02d-%02d %02d:%02d:%02d", prefix,
crt->valid_from.year, crt->valid_from.mon,
crt->valid_from.day, crt->valid_from.hour,
crt->valid_from.min, crt->valid_from.sec );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n%sexpires on : " \
"%04d-%02d-%02d %02d:%02d:%02d", prefix,
crt->valid_to.year, crt->valid_to.mon,
crt->valid_to.day, crt->valid_to.hour,
crt->valid_to.min, crt->valid_to.sec );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n%ssigned using : ", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_x509_sig_alg_gets( p, n, &crt->sig_oid, crt->sig_pk,
crt->sig_md, crt->sig_opts );
MBEDTLS_X509_SAFE_SNPRINTF;
/* Key size */
if( ( ret = mbedtls_x509_key_size_helper( key_size_str, BEFORE_COLON,
mbedtls_pk_get_name( &crt->pk ) ) ) != 0 )
{
return( ret );
}
ret = mbedtls_snprintf( p, n, "\n%s%-" BC "s: %d bits", prefix, key_size_str,
(int) mbedtls_pk_get_bitlen( &crt->pk ) );
MBEDTLS_X509_SAFE_SNPRINTF;
/*
* Optional extensions
*/
if( crt->ext_types & MBEDTLS_X509_EXT_BASIC_CONSTRAINTS )
{
ret = mbedtls_snprintf( p, n, "\n%sbasic constraints : CA=%s", prefix,
crt->ca_istrue ? "true" : "false" );
MBEDTLS_X509_SAFE_SNPRINTF;
if( crt->max_pathlen > 0 )
{
ret = mbedtls_snprintf( p, n, ", max_pathlen=%d", crt->max_pathlen - 1 );
MBEDTLS_X509_SAFE_SNPRINTF;
}
}
if( crt->ext_types & MBEDTLS_X509_EXT_SUBJECT_ALT_NAME )
{
ret = mbedtls_snprintf( p, n, "\n%ssubject alt name : ", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
if( ( ret = x509_info_subject_alt_name( &p, &n,
&crt->subject_alt_names ) ) != 0 )
return( ret );
}
if( crt->ext_types & MBEDTLS_X509_EXT_NS_CERT_TYPE )
{
ret = mbedtls_snprintf( p, n, "\n%scert. type : ", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
if( ( ret = x509_info_cert_type( &p, &n, crt->ns_cert_type ) ) != 0 )
return( ret );
}
if( crt->ext_types & MBEDTLS_X509_EXT_KEY_USAGE )
{
ret = mbedtls_snprintf( p, n, "\n%skey usage : ", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
if( ( ret = x509_info_key_usage( &p, &n, crt->key_usage ) ) != 0 )
return( ret );
}
if( crt->ext_types & MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE )
{
ret = mbedtls_snprintf( p, n, "\n%sext key usage : ", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
if( ( ret = x509_info_ext_key_usage( &p, &n,
&crt->ext_key_usage ) ) != 0 )
return( ret );
}
ret = mbedtls_snprintf( p, n, "\n" );
MBEDTLS_X509_SAFE_SNPRINTF;
return( (int) ( size - n ) );
}
struct x509_crt_verify_string {
int code;
const char *string;
};
static const struct x509_crt_verify_string x509_crt_verify_strings[] = {
{ MBEDTLS_X509_BADCERT_EXPIRED, "The certificate validity has expired" },
{ MBEDTLS_X509_BADCERT_REVOKED, "The certificate has been revoked (is on a CRL)" },
{ MBEDTLS_X509_BADCERT_CN_MISMATCH, "The certificate Common Name (CN) does not match with the expected CN" },
{ MBEDTLS_X509_BADCERT_NOT_TRUSTED, "The certificate is not correctly signed by the trusted CA" },
{ MBEDTLS_X509_BADCRL_NOT_TRUSTED, "The CRL is not correctly signed by the trusted CA" },
{ MBEDTLS_X509_BADCRL_EXPIRED, "The CRL is expired" },
{ MBEDTLS_X509_BADCERT_MISSING, "Certificate was missing" },
{ MBEDTLS_X509_BADCERT_SKIP_VERIFY, "Certificate verification was skipped" },
{ MBEDTLS_X509_BADCERT_OTHER, "Other reason (can be used by verify callback)" },
{ MBEDTLS_X509_BADCERT_FUTURE, "The certificate validity starts in the future" },
{ MBEDTLS_X509_BADCRL_FUTURE, "The CRL is from the future" },
{ MBEDTLS_X509_BADCERT_KEY_USAGE, "Usage does not match the keyUsage extension" },
{ MBEDTLS_X509_BADCERT_EXT_KEY_USAGE, "Usage does not match the extendedKeyUsage extension" },
{ MBEDTLS_X509_BADCERT_NS_CERT_TYPE, "Usage does not match the nsCertType extension" },
{ MBEDTLS_X509_BADCERT_BAD_MD, "The certificate is signed with an unacceptable hash." },
{ MBEDTLS_X509_BADCERT_BAD_PK, "The certificate is signed with an unacceptable PK alg (eg RSA vs ECDSA)." },
{ MBEDTLS_X509_BADCERT_BAD_KEY, "The certificate is signed with an unacceptable key (eg bad curve, RSA too short)." },
{ MBEDTLS_X509_BADCRL_BAD_MD, "The CRL is signed with an unacceptable hash." },
{ MBEDTLS_X509_BADCRL_BAD_PK, "The CRL is signed with an unacceptable PK alg (eg RSA vs ECDSA)." },
{ MBEDTLS_X509_BADCRL_BAD_KEY, "The CRL is signed with an unacceptable key (eg bad curve, RSA too short)." },
{ 0, NULL }
};
int mbedtls_x509_crt_verify_info( char *buf, size_t size, const char *prefix,
uint32_t flags )
{
int ret;
const struct x509_crt_verify_string *cur;
char *p = buf;
size_t n = size;
for( cur = x509_crt_verify_strings; cur->string != NULL ; cur++ )
{
if( ( flags & cur->code ) == 0 )
continue;
ret = mbedtls_snprintf( p, n, "%s%s\n", prefix, cur->string );
MBEDTLS_X509_SAFE_SNPRINTF;
flags ^= cur->code;
}
if( flags != 0 )
{
ret = mbedtls_snprintf( p, n, "%sUnknown reason "
"(this should not happen)\n", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
}
return( (int) ( size - n ) );
}
#if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
int mbedtls_x509_crt_check_key_usage( const mbedtls_x509_crt *crt,
unsigned int usage )
{
unsigned int usage_must, usage_may;
unsigned int may_mask = MBEDTLS_X509_KU_ENCIPHER_ONLY
| MBEDTLS_X509_KU_DECIPHER_ONLY;
if( ( crt->ext_types & MBEDTLS_X509_EXT_KEY_USAGE ) == 0 )
return( 0 );
usage_must = usage & ~may_mask;
if( ( ( crt->key_usage & ~may_mask ) & usage_must ) != usage_must )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
usage_may = usage & may_mask;
if( ( ( crt->key_usage & may_mask ) | usage_may ) != usage_may )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
return( 0 );
}
#endif
#if defined(MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE)
int mbedtls_x509_crt_check_extended_key_usage( const mbedtls_x509_crt *crt,
const char *usage_oid,
size_t usage_len )
{
const mbedtls_x509_sequence *cur;
/* Extension is not mandatory, absent means no restriction */
if( ( crt->ext_types & MBEDTLS_X509_EXT_EXTENDED_KEY_USAGE ) == 0 )
return( 0 );
/*
* Look for the requested usage (or wildcard ANY) in our list
*/
for( cur = &crt->ext_key_usage; cur != NULL; cur = cur->next )
{
const mbedtls_x509_buf *cur_oid = &cur->buf;
if( cur_oid->len == usage_len &&
memcmp( cur_oid->p, usage_oid, usage_len ) == 0 )
{
return( 0 );
}
if( MBEDTLS_OID_CMP( MBEDTLS_OID_ANY_EXTENDED_KEY_USAGE, cur_oid ) == 0 )
return( 0 );
}
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
}
#endif /* MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE */
#if defined(MBEDTLS_X509_CRL_PARSE_C)
/*
* Return 1 if the certificate is revoked, or 0 otherwise.
*/
int mbedtls_x509_crt_is_revoked( const mbedtls_x509_crt *crt, const mbedtls_x509_crl *crl )
{
const mbedtls_x509_crl_entry *cur = &crl->entry;
while( cur != NULL && cur->serial.len != 0 )
{
if( crt->serial.len == cur->serial.len &&
memcmp( crt->serial.p, cur->serial.p, crt->serial.len ) == 0 )
{
if( mbedtls_x509_time_is_past( &cur->revocation_date ) )
return( 1 );
}
cur = cur->next;
}
return( 0 );
}
/*
* Check that the given certificate is not revoked according to the CRL.
* Skip validation if no CRL for the given CA is present.
*/
static int x509_crt_verifycrl( mbedtls_x509_crt *crt, mbedtls_x509_crt *ca,
mbedtls_x509_crl *crl_list,
const mbedtls_x509_crt_profile *profile )
{
int flags = 0;
unsigned char hash[MBEDTLS_MD_MAX_SIZE];
const mbedtls_md_info_t *md_info;
if( ca == NULL )
return( flags );
while( crl_list != NULL )
{
if( crl_list->version == 0 ||
x509_name_cmp( &crl_list->issuer, &ca->subject ) != 0 )
{
crl_list = crl_list->next;
continue;
}
/*
* Check if the CA is configured to sign CRLs
*/
#if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
if( mbedtls_x509_crt_check_key_usage( ca,
MBEDTLS_X509_KU_CRL_SIGN ) != 0 )
{
flags |= MBEDTLS_X509_BADCRL_NOT_TRUSTED;
break;
}
#endif
/*
* Check if CRL is correctly signed by the trusted CA
*/
if( x509_profile_check_md_alg( profile, crl_list->sig_md ) != 0 )
flags |= MBEDTLS_X509_BADCRL_BAD_MD;
if( x509_profile_check_pk_alg( profile, crl_list->sig_pk ) != 0 )
flags |= MBEDTLS_X509_BADCRL_BAD_PK;
md_info = mbedtls_md_info_from_type( crl_list->sig_md );
if( mbedtls_md( md_info, crl_list->tbs.p, crl_list->tbs.len, hash ) != 0 )
{
/* Note: this can't happen except after an internal error */
flags |= MBEDTLS_X509_BADCRL_NOT_TRUSTED;
break;
}
if( x509_profile_check_key( profile, &ca->pk ) != 0 )
flags |= MBEDTLS_X509_BADCERT_BAD_KEY;
if( mbedtls_pk_verify_ext( crl_list->sig_pk, crl_list->sig_opts, &ca->pk,
crl_list->sig_md, hash, mbedtls_md_get_size( md_info ),
crl_list->sig.p, crl_list->sig.len ) != 0 )
{
flags |= MBEDTLS_X509_BADCRL_NOT_TRUSTED;
break;
}
/*
* Check for validity of CRL (Do not drop out)
*/
if( mbedtls_x509_time_is_past( &crl_list->next_update ) )
flags |= MBEDTLS_X509_BADCRL_EXPIRED;
if( mbedtls_x509_time_is_future( &crl_list->this_update ) )
flags |= MBEDTLS_X509_BADCRL_FUTURE;
/*
* Check if certificate is revoked
*/
if( mbedtls_x509_crt_is_revoked( crt, crl_list ) )
{
flags |= MBEDTLS_X509_BADCERT_REVOKED;
break;
}
crl_list = crl_list->next;
}
return( flags );
}
#endif /* MBEDTLS_X509_CRL_PARSE_C */
/*
* Check the signature of a certificate by its parent
*/
static int x509_crt_check_signature( const mbedtls_x509_crt *child,
mbedtls_x509_crt *parent,
mbedtls_x509_crt_restart_ctx *rs_ctx )
{
const mbedtls_md_info_t *md_info;
unsigned char hash[MBEDTLS_MD_MAX_SIZE];
md_info = mbedtls_md_info_from_type( child->sig_md );
if( mbedtls_md( md_info, child->tbs.p, child->tbs.len, hash ) != 0 )
{
/* Note: this can't happen except after an internal error */
return( -1 );
}
/* Skip expensive computation on obvious mismatch */
if( ! mbedtls_pk_can_do( &parent->pk, child->sig_pk ) )
return( -1 );
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && child->sig_pk == MBEDTLS_PK_ECDSA )
{
return( mbedtls_pk_verify_restartable( &parent->pk,
child->sig_md, hash, mbedtls_md_get_size( md_info ),
child->sig.p, child->sig.len, &rs_ctx->pk ) );
}
#else
(void) rs_ctx;
#endif
return( mbedtls_pk_verify_ext( child->sig_pk, child->sig_opts, &parent->pk,
child->sig_md, hash, mbedtls_md_get_size( md_info ),
child->sig.p, child->sig.len ) );
}
/*
* Check if 'parent' is a suitable parent (signing CA) for 'child'.
* Return 0 if yes, -1 if not.
*
* top means parent is a locally-trusted certificate
*/
static int x509_crt_check_parent( const mbedtls_x509_crt *child,
const mbedtls_x509_crt *parent,
int top )
{
int need_ca_bit;
/* Parent must be the issuer */
if( x509_name_cmp( &child->issuer, &parent->subject ) != 0 )
return( -1 );
/* Parent must have the basicConstraints CA bit set as a general rule */
need_ca_bit = 1;
/* Exception: v1/v2 certificates that are locally trusted. */
if( top && parent->version < 3 )
need_ca_bit = 0;
if( need_ca_bit && ! parent->ca_istrue )
return( -1 );
#if defined(MBEDTLS_X509_CHECK_KEY_USAGE)
if( need_ca_bit &&
mbedtls_x509_crt_check_key_usage( parent, MBEDTLS_X509_KU_KEY_CERT_SIGN ) != 0 )
{
return( -1 );
}
#endif
return( 0 );
}
/*
* Find a suitable parent for child in candidates, or return NULL.
*
* Here suitable is defined as:
* 1. subject name matches child's issuer
* 2. if necessary, the CA bit is set and key usage allows signing certs
* 3. for trusted roots, the signature is correct
* (for intermediates, the signature is checked and the result reported)
* 4. pathlen constraints are satisfied
*
* If there's a suitable candidate which is also time-valid, return the first
* such. Otherwise, return the first suitable candidate (or NULL if there is
* none).
*
* The rationale for this rule is that someone could have a list of trusted
* roots with two versions on the same root with different validity periods.
* (At least one user reported having such a list and wanted it to just work.)
* The reason we don't just require time-validity is that generally there is
* only one version, and if it's expired we want the flags to state that
* rather than NOT_TRUSTED, as would be the case if we required it here.
*
* The rationale for rule 3 (signature for trusted roots) is that users might
* have two versions of the same CA with different keys in their list, and the
* way we select the correct one is by checking the signature (as we don't
* rely on key identifier extensions). (This is one way users might choose to
* handle key rollover, another relies on self-issued certs, see [SIRO].)
*
* Arguments:
* - [in] child: certificate for which we're looking for a parent
* - [in] candidates: chained list of potential parents
* - [out] r_parent: parent found (or NULL)
* - [out] r_signature_is_good: 1 if child signature by parent is valid, or 0
* - [in] top: 1 if candidates consists of trusted roots, ie we're at the top
* of the chain, 0 otherwise
* - [in] path_cnt: number of intermediates seen so far
* - [in] self_cnt: number of self-signed intermediates seen so far
* (will never be greater than path_cnt)
* - [in-out] rs_ctx: context for restarting operations
*
* Return value:
* - 0 on success
* - MBEDTLS_ERR_ECP_IN_PROGRESS otherwise
*/
static int x509_crt_find_parent_in(
mbedtls_x509_crt *child,
mbedtls_x509_crt *candidates,
mbedtls_x509_crt **r_parent,
int *r_signature_is_good,
int top,
unsigned path_cnt,
unsigned self_cnt,
mbedtls_x509_crt_restart_ctx *rs_ctx )
{
int ret;
mbedtls_x509_crt *parent, *fallback_parent;
int signature_is_good, fallback_signature_is_good;
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
/* did we have something in progress? */
if( rs_ctx != NULL && rs_ctx->parent != NULL )
{
/* restore saved state */
parent = rs_ctx->parent;
fallback_parent = rs_ctx->fallback_parent;
fallback_signature_is_good = rs_ctx->fallback_signature_is_good;
/* clear saved state */
rs_ctx->parent = NULL;
rs_ctx->fallback_parent = NULL;
rs_ctx->fallback_signature_is_good = 0;
/* resume where we left */
goto check_signature;
}
#endif
fallback_parent = NULL;
fallback_signature_is_good = 0;
for( parent = candidates; parent != NULL; parent = parent->next )
{
/* basic parenting skills (name, CA bit, key usage) */
if( x509_crt_check_parent( child, parent, top ) != 0 )
continue;
/* +1 because stored max_pathlen is 1 higher that the actual value */
if( parent->max_pathlen > 0 &&
(size_t) parent->max_pathlen < 1 + path_cnt - self_cnt )
{
continue;
}
/* Signature */
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
check_signature:
#endif
ret = x509_crt_check_signature( child, parent, rs_ctx );
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
{
/* save state */
rs_ctx->parent = parent;
rs_ctx->fallback_parent = fallback_parent;
rs_ctx->fallback_signature_is_good = fallback_signature_is_good;
return( ret );
}
#else
(void) ret;
#endif
signature_is_good = ret == 0;
if( top && ! signature_is_good )
continue;
/* optional time check */
if( mbedtls_x509_time_is_past( &parent->valid_to ) ||
mbedtls_x509_time_is_future( &parent->valid_from ) )
{
if( fallback_parent == NULL )
{
fallback_parent = parent;
fallback_signature_is_good = signature_is_good;
}
continue;
}
break;
}
if( parent != NULL )
{
*r_parent = parent;
*r_signature_is_good = signature_is_good;
}
else
{
*r_parent = fallback_parent;
*r_signature_is_good = fallback_signature_is_good;
}
return( 0 );
}
/*
* Find a parent in trusted CAs or the provided chain, or return NULL.
*
* Searches in trusted CAs first, and return the first suitable parent found
* (see find_parent_in() for definition of suitable).
*
* Arguments:
* - [in] child: certificate for which we're looking for a parent, followed
* by a chain of possible intermediates
* - [in] trust_ca: list of locally trusted certificates
* - [out] parent: parent found (or NULL)
* - [out] parent_is_trusted: 1 if returned `parent` is trusted, or 0
* - [out] signature_is_good: 1 if child signature by parent is valid, or 0
* - [in] path_cnt: number of links in the chain so far (EE -> ... -> child)
* - [in] self_cnt: number of self-signed certs in the chain so far
* (will always be no greater than path_cnt)
* - [in-out] rs_ctx: context for restarting operations
*
* Return value:
* - 0 on success
* - MBEDTLS_ERR_ECP_IN_PROGRESS otherwise
*/
static int x509_crt_find_parent(
mbedtls_x509_crt *child,
mbedtls_x509_crt *trust_ca,
mbedtls_x509_crt **parent,
int *parent_is_trusted,
int *signature_is_good,
unsigned path_cnt,
unsigned self_cnt,
mbedtls_x509_crt_restart_ctx *rs_ctx )
{
int ret;
mbedtls_x509_crt *search_list;
*parent_is_trusted = 1;
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
/* restore then clear saved state if we have some stored */
if( rs_ctx != NULL && rs_ctx->parent_is_trusted != -1 )
{
*parent_is_trusted = rs_ctx->parent_is_trusted;
rs_ctx->parent_is_trusted = -1;
}
#endif
while( 1 ) {
search_list = *parent_is_trusted ? trust_ca : child->next;
ret = x509_crt_find_parent_in( child, search_list,
parent, signature_is_good,
*parent_is_trusted,
path_cnt, self_cnt, rs_ctx );
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
{
/* save state */
rs_ctx->parent_is_trusted = *parent_is_trusted;
return( ret );
}
#else
(void) ret;
#endif
/* stop here if found or already in second iteration */
if( *parent != NULL || *parent_is_trusted == 0 )
break;
/* prepare second iteration */
*parent_is_trusted = 0;
}
/* extra precaution against mistakes in the caller */
if( *parent == NULL )
{
*parent_is_trusted = 0;
*signature_is_good = 0;
}
return( 0 );
}
/*
* Check if an end-entity certificate is locally trusted
*
* Currently we require such certificates to be self-signed (actually only
* check for self-issued as self-signatures are not checked)
*/
static int x509_crt_check_ee_locally_trusted(
mbedtls_x509_crt *crt,
mbedtls_x509_crt *trust_ca )
{
mbedtls_x509_crt *cur;
/* must be self-issued */
if( x509_name_cmp( &crt->issuer, &crt->subject ) != 0 )
return( -1 );
/* look for an exact match with trusted cert */
for( cur = trust_ca; cur != NULL; cur = cur->next )
{
if( crt->raw.len == cur->raw.len &&
memcmp( crt->raw.p, cur->raw.p, crt->raw.len ) == 0 )
{
return( 0 );
}
}
/* too bad */
return( -1 );
}
/*
* Build and verify a certificate chain
*
* Given a peer-provided list of certificates EE, C1, ..., Cn and
* a list of trusted certs R1, ... Rp, try to build and verify a chain
* EE, Ci1, ... Ciq [, Rj]
* such that every cert in the chain is a child of the next one,
* jumping to a trusted root as early as possible.
*
* Verify that chain and return it with flags for all issues found.
*
* Special cases:
* - EE == Rj -> return a one-element list containing it
* - EE, Ci1, ..., Ciq cannot be continued with a trusted root
* -> return that chain with NOT_TRUSTED set on Ciq
*
* Tests for (aspects of) this function should include at least:
* - trusted EE
* - EE -> trusted root
* - EE -> intermedate CA -> trusted root
* - if relevant: EE untrusted
* - if relevant: EE -> intermediate, untrusted
* with the aspect under test checked at each relevant level (EE, int, root).
* For some aspects longer chains are required, but usually length 2 is
* enough (but length 1 is not in general).
*
* Arguments:
* - [in] crt: the cert list EE, C1, ..., Cn
* - [in] trust_ca: the trusted list R1, ..., Rp
* - [in] ca_crl, profile: as in verify_with_profile()
* - [out] ver_chain: the built and verified chain
* Only valid when return value is 0, may contain garbage otherwise!
* Restart note: need not be the same when calling again to resume.
* - [in-out] rs_ctx: context for restarting operations
*
* Return value:
* - non-zero if the chain could not be fully built and examined
* - 0 is the chain was successfully built and examined,
* even if it was found to be invalid
*/
static int x509_crt_verify_chain(
mbedtls_x509_crt *crt,
mbedtls_x509_crt *trust_ca,
mbedtls_x509_crl *ca_crl,
const mbedtls_x509_crt_profile *profile,
mbedtls_x509_crt_verify_chain *ver_chain,
mbedtls_x509_crt_restart_ctx *rs_ctx )
{
/* Don't initialize any of those variables here, so that the compiler can
* catch potential issues with jumping ahead when restarting */
int ret;
uint32_t *flags;
mbedtls_x509_crt_verify_chain_item *cur;
mbedtls_x509_crt *child;
mbedtls_x509_crt *parent;
int parent_is_trusted;
int child_is_trusted;
int signature_is_good;
unsigned self_cnt;
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
/* resume if we had an operation in progress */
if( rs_ctx != NULL && rs_ctx->in_progress == x509_crt_rs_find_parent )
{
/* restore saved state */
*ver_chain = rs_ctx->ver_chain; /* struct copy */
self_cnt = rs_ctx->self_cnt;
/* restore derived state */
cur = &ver_chain->items[ver_chain->len - 1];
child = cur->crt;
flags = &cur->flags;
goto find_parent;
}
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
child = crt;
self_cnt = 0;
parent_is_trusted = 0;
child_is_trusted = 0;
while( 1 ) {
/* Add certificate to the verification chain */
cur = &ver_chain->items[ver_chain->len];
cur->crt = child;
cur->flags = 0;
ver_chain->len++;
flags = &cur->flags;
/* Check time-validity (all certificates) */
if( mbedtls_x509_time_is_past( &child->valid_to ) )
*flags |= MBEDTLS_X509_BADCERT_EXPIRED;
if( mbedtls_x509_time_is_future( &child->valid_from ) )
*flags |= MBEDTLS_X509_BADCERT_FUTURE;
/* Stop here for trusted roots (but not for trusted EE certs) */
if( child_is_trusted )
return( 0 );
/* Check signature algorithm: MD & PK algs */
if( x509_profile_check_md_alg( profile, child->sig_md ) != 0 )
*flags |= MBEDTLS_X509_BADCERT_BAD_MD;
if( x509_profile_check_pk_alg( profile, child->sig_pk ) != 0 )
*flags |= MBEDTLS_X509_BADCERT_BAD_PK;
/* Special case: EE certs that are locally trusted */
if( ver_chain->len == 1 &&
x509_crt_check_ee_locally_trusted( child, trust_ca ) == 0 )
{
return( 0 );
}
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
find_parent:
#endif
/* Look for a parent in trusted CAs or up the chain */
ret = x509_crt_find_parent( child, trust_ca, &parent,
&parent_is_trusted, &signature_is_good,
ver_chain->len - 1, self_cnt, rs_ctx );
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && ret == MBEDTLS_ERR_ECP_IN_PROGRESS )
{
/* save state */
rs_ctx->in_progress = x509_crt_rs_find_parent;
rs_ctx->self_cnt = self_cnt;
rs_ctx->ver_chain = *ver_chain; /* struct copy */
return( ret );
}
#else
(void) ret;
#endif
/* No parent? We're done here */
if( parent == NULL )
{
*flags |= MBEDTLS_X509_BADCERT_NOT_TRUSTED;
return( 0 );
}
/* Count intermediate self-issued (not necessarily self-signed) certs.
* These can occur with some strategies for key rollover, see [SIRO],
* and should be excluded from max_pathlen checks. */
if( ver_chain->len != 1 &&
x509_name_cmp( &child->issuer, &child->subject ) == 0 )
{
self_cnt++;
}
/* path_cnt is 0 for the first intermediate CA,
* and if parent is trusted it's not an intermediate CA */
if( ! parent_is_trusted &&
ver_chain->len > MBEDTLS_X509_MAX_INTERMEDIATE_CA )
{
/* return immediately to avoid overflow the chain array */
return( MBEDTLS_ERR_X509_FATAL_ERROR );
}
/* signature was checked while searching parent */
if( ! signature_is_good )
*flags |= MBEDTLS_X509_BADCERT_NOT_TRUSTED;
/* check size of signing key */
if( x509_profile_check_key( profile, &parent->pk ) != 0 )
*flags |= MBEDTLS_X509_BADCERT_BAD_KEY;
#if defined(MBEDTLS_X509_CRL_PARSE_C)
/* Check trusted CA's CRL for the given crt */
*flags |= x509_crt_verifycrl( child, parent, ca_crl, profile );
#else
(void) ca_crl;
#endif
/* prepare for next iteration */
child = parent;
parent = NULL;
child_is_trusted = parent_is_trusted;
signature_is_good = 0;
}
}
/*
* Check for CN match
*/
static int x509_crt_check_cn( const mbedtls_x509_buf *name,
const char *cn, size_t cn_len )
{
/* try exact match */
if( name->len == cn_len &&
x509_memcasecmp( cn, name->p, cn_len ) == 0 )
{
return( 0 );
}
/* try wildcard match */
if( x509_check_wildcard( cn, name ) == 0 )
{
return( 0 );
}
return( -1 );
}
/*
* Verify the requested CN - only call this if cn is not NULL!
*/
static void x509_crt_verify_name( const mbedtls_x509_crt *crt,
const char *cn,
uint32_t *flags )
{
const mbedtls_x509_name *name;
const mbedtls_x509_sequence *cur;
size_t cn_len = strlen( cn );
if( crt->ext_types & MBEDTLS_X509_EXT_SUBJECT_ALT_NAME )
{
for( cur = &crt->subject_alt_names; cur != NULL; cur = cur->next )
{
if( x509_crt_check_cn( &cur->buf, cn, cn_len ) == 0 )
break;
}
if( cur == NULL )
*flags |= MBEDTLS_X509_BADCERT_CN_MISMATCH;
}
else
{
for( name = &crt->subject; name != NULL; name = name->next )
{
if( MBEDTLS_OID_CMP( MBEDTLS_OID_AT_CN, &name->oid ) == 0 &&
x509_crt_check_cn( &name->val, cn, cn_len ) == 0 )
{
break;
}
}
if( name == NULL )
*flags |= MBEDTLS_X509_BADCERT_CN_MISMATCH;
}
}
/*
* Merge the flags for all certs in the chain, after calling callback
*/
static int x509_crt_merge_flags_with_cb(
uint32_t *flags,
const mbedtls_x509_crt_verify_chain *ver_chain,
int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
void *p_vrfy )
{
int ret;
unsigned i;
uint32_t cur_flags;
const mbedtls_x509_crt_verify_chain_item *cur;
for( i = ver_chain->len; i != 0; --i )
{
cur = &ver_chain->items[i-1];
cur_flags = cur->flags;
if( NULL != f_vrfy )
if( ( ret = f_vrfy( p_vrfy, cur->crt, (int) i-1, &cur_flags ) ) != 0 )
return( ret );
*flags |= cur_flags;
}
return( 0 );
}
/*
* Verify the certificate validity (default profile, not restartable)
*/
int mbedtls_x509_crt_verify( mbedtls_x509_crt *crt,
mbedtls_x509_crt *trust_ca,
mbedtls_x509_crl *ca_crl,
const char *cn, uint32_t *flags,
int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
void *p_vrfy )
{
return( mbedtls_x509_crt_verify_restartable( crt, trust_ca, ca_crl,
&mbedtls_x509_crt_profile_default, cn, flags,
f_vrfy, p_vrfy, NULL ) );
}
/*
* Verify the certificate validity (user-chosen profile, not restartable)
*/
int mbedtls_x509_crt_verify_with_profile( mbedtls_x509_crt *crt,
mbedtls_x509_crt *trust_ca,
mbedtls_x509_crl *ca_crl,
const mbedtls_x509_crt_profile *profile,
const char *cn, uint32_t *flags,
int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
void *p_vrfy )
{
return( mbedtls_x509_crt_verify_restartable( crt, trust_ca, ca_crl,
profile, cn, flags, f_vrfy, p_vrfy, NULL ) );
}
/*
* Verify the certificate validity, with profile, restartable version
*
* This function:
* - checks the requested CN (if any)
* - checks the type and size of the EE cert's key,
* as that isn't done as part of chain building/verification currently
* - builds and verifies the chain
* - then calls the callback and merges the flags
*/
int mbedtls_x509_crt_verify_restartable( mbedtls_x509_crt *crt,
mbedtls_x509_crt *trust_ca,
mbedtls_x509_crl *ca_crl,
const mbedtls_x509_crt_profile *profile,
const char *cn, uint32_t *flags,
int (*f_vrfy)(void *, mbedtls_x509_crt *, int, uint32_t *),
void *p_vrfy,
mbedtls_x509_crt_restart_ctx *rs_ctx )
{
int ret;
mbedtls_pk_type_t pk_type;
mbedtls_x509_crt_verify_chain ver_chain;
uint32_t ee_flags;
*flags = 0;
ee_flags = 0;
x509_crt_verify_chain_reset( &ver_chain );
if( profile == NULL )
{
ret = MBEDTLS_ERR_X509_BAD_INPUT_DATA;
goto exit;
}
/* check name if requested */
if( cn != NULL )
x509_crt_verify_name( crt, cn, &ee_flags );
/* Check the type and size of the key */
pk_type = mbedtls_pk_get_type( &crt->pk );
if( x509_profile_check_pk_alg( profile, pk_type ) != 0 )
ee_flags |= MBEDTLS_X509_BADCERT_BAD_PK;
if( x509_profile_check_key( profile, &crt->pk ) != 0 )
ee_flags |= MBEDTLS_X509_BADCERT_BAD_KEY;
/* Check the chain */
ret = x509_crt_verify_chain( crt, trust_ca, ca_crl, profile,
&ver_chain, rs_ctx );
if( ret != 0 )
goto exit;
/* Merge end-entity flags */
ver_chain.items[0].flags |= ee_flags;
/* Build final flags, calling callback on the way if any */
ret = x509_crt_merge_flags_with_cb( flags, &ver_chain, f_vrfy, p_vrfy );
exit:
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
if( rs_ctx != NULL && ret != MBEDTLS_ERR_ECP_IN_PROGRESS )
mbedtls_x509_crt_restart_free( rs_ctx );
#endif
/* prevent misuse of the vrfy callback - VERIFY_FAILED would be ignored by
* the SSL module for authmode optional, but non-zero return from the
* callback means a fatal error so it shouldn't be ignored */
if( ret == MBEDTLS_ERR_X509_CERT_VERIFY_FAILED )
ret = MBEDTLS_ERR_X509_FATAL_ERROR;
if( ret != 0 )
{
*flags = (uint32_t) -1;
return( ret );
}
if( *flags != 0 )
return( MBEDTLS_ERR_X509_CERT_VERIFY_FAILED );
return( 0 );
}
/*
* Initialize a certificate chain
*/
void mbedtls_x509_crt_init( mbedtls_x509_crt *crt )
{
memset( crt, 0, sizeof(mbedtls_x509_crt) );
}
/*
* Unallocate all certificate data
*/
void mbedtls_x509_crt_free( mbedtls_x509_crt *crt )
{
mbedtls_x509_crt *cert_cur = crt;
mbedtls_x509_crt *cert_prv;
mbedtls_x509_name *name_cur;
mbedtls_x509_name *name_prv;
mbedtls_x509_sequence *seq_cur;
mbedtls_x509_sequence *seq_prv;
if( crt == NULL )
return;
do
{
mbedtls_pk_free( &cert_cur->pk );
#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
mbedtls_free( cert_cur->sig_opts );
#endif
name_cur = cert_cur->issuer.next;
while( name_cur != NULL )
{
name_prv = name_cur;
name_cur = name_cur->next;
mbedtls_platform_zeroize( name_prv, sizeof( mbedtls_x509_name ) );
mbedtls_free( name_prv );
}
name_cur = cert_cur->subject.next;
while( name_cur != NULL )
{
name_prv = name_cur;
name_cur = name_cur->next;
mbedtls_platform_zeroize( name_prv, sizeof( mbedtls_x509_name ) );
mbedtls_free( name_prv );
}
seq_cur = cert_cur->ext_key_usage.next;
while( seq_cur != NULL )
{
seq_prv = seq_cur;
seq_cur = seq_cur->next;
mbedtls_platform_zeroize( seq_prv,
sizeof( mbedtls_x509_sequence ) );
mbedtls_free( seq_prv );
}
seq_cur = cert_cur->subject_alt_names.next;
while( seq_cur != NULL )
{
seq_prv = seq_cur;
seq_cur = seq_cur->next;
mbedtls_platform_zeroize( seq_prv,
sizeof( mbedtls_x509_sequence ) );
mbedtls_free( seq_prv );
}
if( cert_cur->raw.p != NULL )
{
mbedtls_platform_zeroize( cert_cur->raw.p, cert_cur->raw.len );
mbedtls_free( cert_cur->raw.p );
}
cert_cur = cert_cur->next;
}
while( cert_cur != NULL );
cert_cur = crt;
do
{
cert_prv = cert_cur;
cert_cur = cert_cur->next;
mbedtls_platform_zeroize( cert_prv, sizeof( mbedtls_x509_crt ) );
if( cert_prv != crt )
mbedtls_free( cert_prv );
}
while( cert_cur != NULL );
}
#if defined(MBEDTLS_ECDSA_C) && defined(MBEDTLS_ECP_RESTARTABLE)
/*
* Initialize a restart context
*/
void mbedtls_x509_crt_restart_init( mbedtls_x509_crt_restart_ctx *ctx )
{
mbedtls_pk_restart_init( &ctx->pk );
ctx->parent = NULL;
ctx->fallback_parent = NULL;
ctx->fallback_signature_is_good = 0;
ctx->parent_is_trusted = -1;
ctx->in_progress = x509_crt_rs_none;
ctx->self_cnt = 0;
x509_crt_verify_chain_reset( &ctx->ver_chain );
}
/*
* Free the components of a restart context
*/
void mbedtls_x509_crt_restart_free( mbedtls_x509_crt_restart_ctx *ctx )
{
if( ctx == NULL )
return;
mbedtls_pk_restart_free( &ctx->pk );
mbedtls_x509_crt_restart_init( ctx );
}
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ECP_RESTARTABLE */
#endif /* MBEDTLS_X509_CRT_PARSE_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/x509_crt.c | C | apache-2.0 | 85,007 |
/*
* X.509 Certificate Signing Request (CSR) parsing
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The ITU-T X.509 standard defines a certificate format for PKI.
*
* http://www.ietf.org/rfc/rfc5280.txt (Certificates and CRLs)
* http://www.ietf.org/rfc/rfc3279.txt (Alg IDs for CRLs)
* http://www.ietf.org/rfc/rfc2986.txt (CSRs, aka PKCS#10)
*
* http://www.itu.int/ITU-T/studygroups/com17/languages/X.680-0207.pdf
* http://www.itu.int/ITU-T/studygroups/com17/languages/X.690-0207.pdf
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_X509_CSR_PARSE_C)
#include "mbedtls/x509_csr.h"
#include "mbedtls/oid.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_PEM_PARSE_C)
#include "mbedtls/pem.h"
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#include <stdio.h>
#define mbedtls_free free
#define mbedtls_calloc calloc
#define mbedtls_snprintf snprintf
#endif
#if defined(MBEDTLS_FS_IO) || defined(EFIX64) || defined(EFI32)
#include <stdio.h>
#endif
/*
* Version ::= INTEGER { v1(0) }
*/
static int x509_csr_get_version( unsigned char **p,
const unsigned char *end,
int *ver )
{
int ret;
if( ( ret = mbedtls_asn1_get_int( p, end, ver ) ) != 0 )
{
if( ret == MBEDTLS_ERR_ASN1_UNEXPECTED_TAG )
{
*ver = 0;
return( 0 );
}
return( MBEDTLS_ERR_X509_INVALID_VERSION + ret );
}
return( 0 );
}
/*
* Parse a CSR in DER format
*/
int mbedtls_x509_csr_parse_der( mbedtls_x509_csr *csr,
const unsigned char *buf, size_t buflen )
{
int ret;
size_t len;
unsigned char *p, *end;
mbedtls_x509_buf sig_params;
memset( &sig_params, 0, sizeof( mbedtls_x509_buf ) );
/*
* Check for valid input
*/
if( csr == NULL || buf == NULL || buflen == 0 )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
mbedtls_x509_csr_init( csr );
/*
* first copy the raw DER data
*/
p = mbedtls_calloc( 1, len = buflen );
if( p == NULL )
return( MBEDTLS_ERR_X509_ALLOC_FAILED );
memcpy( p, buf, buflen );
csr->raw.p = p;
csr->raw.len = len;
end = p + len;
/*
* CertificationRequest ::= SEQUENCE {
* certificationRequestInfo CertificationRequestInfo,
* signatureAlgorithm AlgorithmIdentifier,
* signature BIT STRING
* }
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_INVALID_FORMAT );
}
if( len != (size_t) ( end - p ) )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
/*
* CertificationRequestInfo ::= SEQUENCE {
*/
csr->cri.p = p;
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
}
end = p + len;
csr->cri.len = end - csr->cri.p;
/*
* Version ::= INTEGER { v1(0) }
*/
if( ( ret = x509_csr_get_version( &p, end, &csr->version ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( ret );
}
if( csr->version != 0 )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_UNKNOWN_VERSION );
}
csr->version++;
/*
* subject Name
*/
csr->subject_raw.p = p;
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_SEQUENCE ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
}
if( ( ret = mbedtls_x509_get_name( &p, p + len, &csr->subject ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( ret );
}
csr->subject_raw.len = p - csr->subject_raw.p;
/*
* subjectPKInfo SubjectPublicKeyInfo
*/
if( ( ret = mbedtls_pk_parse_subpubkey( &p, end, &csr->pk ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( ret );
}
/*
* attributes [0] Attributes
*
* The list of possible attributes is open-ended, though RFC 2985
* (PKCS#9) defines a few in section 5.4. We currently don't support any,
* so we just ignore them. This is a safe thing to do as the worst thing
* that could happen is that we issue a certificate that does not match
* the requester's expectations - this cannot cause a violation of our
* signature policies.
*/
if( ( ret = mbedtls_asn1_get_tag( &p, end, &len,
MBEDTLS_ASN1_CONSTRUCTED | MBEDTLS_ASN1_CONTEXT_SPECIFIC ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_INVALID_FORMAT + ret );
}
p += len;
end = csr->raw.p + csr->raw.len;
/*
* signatureAlgorithm AlgorithmIdentifier,
* signature BIT STRING
*/
if( ( ret = mbedtls_x509_get_alg( &p, end, &csr->sig_oid, &sig_params ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( ret );
}
if( ( ret = mbedtls_x509_get_sig_alg( &csr->sig_oid, &sig_params,
&csr->sig_md, &csr->sig_pk,
&csr->sig_opts ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_UNKNOWN_SIG_ALG );
}
if( ( ret = mbedtls_x509_get_sig( &p, end, &csr->sig ) ) != 0 )
{
mbedtls_x509_csr_free( csr );
return( ret );
}
if( p != end )
{
mbedtls_x509_csr_free( csr );
return( MBEDTLS_ERR_X509_INVALID_FORMAT +
MBEDTLS_ERR_ASN1_LENGTH_MISMATCH );
}
return( 0 );
}
/*
* Parse a CSR, allowing for PEM or raw DER encoding
*/
int mbedtls_x509_csr_parse( mbedtls_x509_csr *csr, const unsigned char *buf, size_t buflen )
{
#if defined(MBEDTLS_PEM_PARSE_C)
int ret;
size_t use_len;
mbedtls_pem_context pem;
#endif
/*
* Check for valid input
*/
if( csr == NULL || buf == NULL || buflen == 0 )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
#if defined(MBEDTLS_PEM_PARSE_C)
/* Avoid calling mbedtls_pem_read_buffer() on non-null-terminated string */
if( buf[buflen - 1] == '\0' )
{
mbedtls_pem_init( &pem );
ret = mbedtls_pem_read_buffer( &pem,
"-----BEGIN CERTIFICATE REQUEST-----",
"-----END CERTIFICATE REQUEST-----",
buf, NULL, 0, &use_len );
if( ret == 0 )
/*
* Was PEM encoded, parse the result
*/
ret = mbedtls_x509_csr_parse_der( csr, pem.buf, pem.buflen );
mbedtls_pem_free( &pem );
if( ret != MBEDTLS_ERR_PEM_NO_HEADER_FOOTER_PRESENT )
return( ret );
}
#endif /* MBEDTLS_PEM_PARSE_C */
return( mbedtls_x509_csr_parse_der( csr, buf, buflen ) );
}
#if defined(MBEDTLS_FS_IO)
/*
* Load a CSR into the structure
*/
int mbedtls_x509_csr_parse_file( mbedtls_x509_csr *csr, const char *path )
{
int ret;
size_t n;
unsigned char *buf;
if( ( ret = mbedtls_pk_load_file( path, &buf, &n ) ) != 0 )
return( ret );
ret = mbedtls_x509_csr_parse( csr, buf, n );
mbedtls_platform_zeroize( buf, n );
mbedtls_free( buf );
return( ret );
}
#endif /* MBEDTLS_FS_IO */
#define BEFORE_COLON 14
#define BC "14"
/*
* Return an informational string about the CSR.
*/
int mbedtls_x509_csr_info( char *buf, size_t size, const char *prefix,
const mbedtls_x509_csr *csr )
{
int ret;
size_t n;
char *p;
char key_size_str[BEFORE_COLON];
p = buf;
n = size;
ret = mbedtls_snprintf( p, n, "%sCSR version : %d",
prefix, csr->version );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n%ssubject name : ", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_x509_dn_gets( p, n, &csr->subject );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_snprintf( p, n, "\n%ssigned using : ", prefix );
MBEDTLS_X509_SAFE_SNPRINTF;
ret = mbedtls_x509_sig_alg_gets( p, n, &csr->sig_oid, csr->sig_pk, csr->sig_md,
csr->sig_opts );
MBEDTLS_X509_SAFE_SNPRINTF;
if( ( ret = mbedtls_x509_key_size_helper( key_size_str, BEFORE_COLON,
mbedtls_pk_get_name( &csr->pk ) ) ) != 0 )
{
return( ret );
}
ret = mbedtls_snprintf( p, n, "\n%s%-" BC "s: %d bits\n", prefix, key_size_str,
(int) mbedtls_pk_get_bitlen( &csr->pk ) );
MBEDTLS_X509_SAFE_SNPRINTF;
return( (int) ( size - n ) );
}
/*
* Initialize a CSR
*/
void mbedtls_x509_csr_init( mbedtls_x509_csr *csr )
{
memset( csr, 0, sizeof(mbedtls_x509_csr) );
}
/*
* Unallocate all CSR data
*/
void mbedtls_x509_csr_free( mbedtls_x509_csr *csr )
{
mbedtls_x509_name *name_cur;
mbedtls_x509_name *name_prv;
if( csr == NULL )
return;
mbedtls_pk_free( &csr->pk );
#if defined(MBEDTLS_X509_RSASSA_PSS_SUPPORT)
mbedtls_free( csr->sig_opts );
#endif
name_cur = csr->subject.next;
while( name_cur != NULL )
{
name_prv = name_cur;
name_cur = name_cur->next;
mbedtls_platform_zeroize( name_prv, sizeof( mbedtls_x509_name ) );
mbedtls_free( name_prv );
}
if( csr->raw.p != NULL )
{
mbedtls_platform_zeroize( csr->raw.p, csr->raw.len );
mbedtls_free( csr->raw.p );
}
mbedtls_platform_zeroize( csr, sizeof( mbedtls_x509_csr ) );
}
#endif /* MBEDTLS_X509_CSR_PARSE_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/x509_csr.c | C | apache-2.0 | 10,791 |
/*
* X.509 certificate writing
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* References:
* - certificates: RFC 5280, updated by RFC 6818
* - CSRs: PKCS#10 v1.7 aka RFC 2986
* - attributes: PKCS#9 v2.0 aka RFC 2985
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_X509_CRT_WRITE_C)
#include "mbedtls/x509_crt.h"
#include "mbedtls/oid.h"
#include "mbedtls/asn1write.h"
#include "mbedtls/sha1.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_PEM_WRITE_C)
#include "mbedtls/pem.h"
#endif /* MBEDTLS_PEM_WRITE_C */
void mbedtls_x509write_crt_init( mbedtls_x509write_cert *ctx )
{
memset( ctx, 0, sizeof( mbedtls_x509write_cert ) );
mbedtls_mpi_init( &ctx->serial );
ctx->version = MBEDTLS_X509_CRT_VERSION_3;
}
void mbedtls_x509write_crt_free( mbedtls_x509write_cert *ctx )
{
mbedtls_mpi_free( &ctx->serial );
mbedtls_asn1_free_named_data_list( &ctx->subject );
mbedtls_asn1_free_named_data_list( &ctx->issuer );
mbedtls_asn1_free_named_data_list( &ctx->extensions );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_x509write_cert ) );
}
void mbedtls_x509write_crt_set_version( mbedtls_x509write_cert *ctx, int version )
{
ctx->version = version;
}
void mbedtls_x509write_crt_set_md_alg( mbedtls_x509write_cert *ctx, mbedtls_md_type_t md_alg )
{
ctx->md_alg = md_alg;
}
void mbedtls_x509write_crt_set_subject_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key )
{
ctx->subject_key = key;
}
void mbedtls_x509write_crt_set_issuer_key( mbedtls_x509write_cert *ctx, mbedtls_pk_context *key )
{
ctx->issuer_key = key;
}
int mbedtls_x509write_crt_set_subject_name( mbedtls_x509write_cert *ctx,
const char *subject_name )
{
return mbedtls_x509_string_to_names( &ctx->subject, subject_name );
}
int mbedtls_x509write_crt_set_issuer_name( mbedtls_x509write_cert *ctx,
const char *issuer_name )
{
return mbedtls_x509_string_to_names( &ctx->issuer, issuer_name );
}
int mbedtls_x509write_crt_set_serial( mbedtls_x509write_cert *ctx, const mbedtls_mpi *serial )
{
int ret;
if( ( ret = mbedtls_mpi_copy( &ctx->serial, serial ) ) != 0 )
return( ret );
return( 0 );
}
int mbedtls_x509write_crt_set_validity( mbedtls_x509write_cert *ctx, const char *not_before,
const char *not_after )
{
if( strlen( not_before ) != MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1 ||
strlen( not_after ) != MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1 )
{
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
}
strncpy( ctx->not_before, not_before, MBEDTLS_X509_RFC5280_UTC_TIME_LEN );
strncpy( ctx->not_after , not_after , MBEDTLS_X509_RFC5280_UTC_TIME_LEN );
ctx->not_before[MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1] = 'Z';
ctx->not_after[MBEDTLS_X509_RFC5280_UTC_TIME_LEN - 1] = 'Z';
return( 0 );
}
int mbedtls_x509write_crt_set_extension( mbedtls_x509write_cert *ctx,
const char *oid, size_t oid_len,
int critical,
const unsigned char *val, size_t val_len )
{
return mbedtls_x509_set_extension( &ctx->extensions, oid, oid_len,
critical, val, val_len );
}
int mbedtls_x509write_crt_set_basic_constraints( mbedtls_x509write_cert *ctx,
int is_ca, int max_pathlen )
{
int ret;
unsigned char buf[9];
unsigned char *c = buf + sizeof(buf);
size_t len = 0;
memset( buf, 0, sizeof(buf) );
if( is_ca && max_pathlen > 127 )
return( MBEDTLS_ERR_X509_BAD_INPUT_DATA );
if( is_ca )
{
if( max_pathlen >= 0 )
{
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, buf, max_pathlen ) );
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_bool( &c, buf, 1 ) );
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_BASIC_CONSTRAINTS,
MBEDTLS_OID_SIZE( MBEDTLS_OID_BASIC_CONSTRAINTS ),
0, buf + sizeof(buf) - len, len );
}
#if defined(MBEDTLS_SHA1_C)
int mbedtls_x509write_crt_set_subject_key_identifier( mbedtls_x509write_cert *ctx )
{
int ret;
unsigned char buf[MBEDTLS_MPI_MAX_SIZE * 2 + 20]; /* tag, length + 2xMPI */
unsigned char *c = buf + sizeof(buf);
size_t len = 0;
memset( buf, 0, sizeof(buf) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_pk_write_pubkey( &c, buf, ctx->subject_key ) );
ret = mbedtls_sha1_ret( buf + sizeof( buf ) - len, len,
buf + sizeof( buf ) - 20 );
if( ret != 0 )
return( ret );
c = buf + sizeof( buf ) - 20;
len = 20;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_OCTET_STRING ) );
return mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER,
MBEDTLS_OID_SIZE( MBEDTLS_OID_SUBJECT_KEY_IDENTIFIER ),
0, buf + sizeof(buf) - len, len );
}
int mbedtls_x509write_crt_set_authority_key_identifier( mbedtls_x509write_cert *ctx )
{
int ret;
unsigned char buf[MBEDTLS_MPI_MAX_SIZE * 2 + 20]; /* tag, length + 2xMPI */
unsigned char *c = buf + sizeof( buf );
size_t len = 0;
memset( buf, 0, sizeof(buf) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_pk_write_pubkey( &c, buf, ctx->issuer_key ) );
ret = mbedtls_sha1_ret( buf + sizeof( buf ) - len, len,
buf + sizeof( buf ) - 20 );
if( ret != 0 )
return( ret );
c = buf + sizeof( buf ) - 20;
len = 20;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC | 0 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER,
MBEDTLS_OID_SIZE( MBEDTLS_OID_AUTHORITY_KEY_IDENTIFIER ),
0, buf + sizeof( buf ) - len, len );
}
#endif /* MBEDTLS_SHA1_C */
int mbedtls_x509write_crt_set_key_usage( mbedtls_x509write_cert *ctx,
unsigned int key_usage )
{
unsigned char buf[4], ku;
unsigned char *c;
int ret;
/* We currently only support 7 bits, from 0x80 to 0x02 */
if( ( key_usage & ~0xfe ) != 0 )
return( MBEDTLS_ERR_X509_FEATURE_UNAVAILABLE );
c = buf + 4;
ku = (unsigned char) key_usage;
if( ( ret = mbedtls_asn1_write_bitstring( &c, buf, &ku, 7 ) ) != 4 )
return( ret );
ret = mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_KEY_USAGE,
MBEDTLS_OID_SIZE( MBEDTLS_OID_KEY_USAGE ),
1, buf, 4 );
if( ret != 0 )
return( ret );
return( 0 );
}
int mbedtls_x509write_crt_set_ns_cert_type( mbedtls_x509write_cert *ctx,
unsigned char ns_cert_type )
{
unsigned char buf[4];
unsigned char *c;
int ret;
c = buf + 4;
if( ( ret = mbedtls_asn1_write_bitstring( &c, buf, &ns_cert_type, 8 ) ) != 4 )
return( ret );
ret = mbedtls_x509write_crt_set_extension( ctx, MBEDTLS_OID_NS_CERT_TYPE,
MBEDTLS_OID_SIZE( MBEDTLS_OID_NS_CERT_TYPE ),
0, buf, 4 );
if( ret != 0 )
return( ret );
return( 0 );
}
static int x509_write_time( unsigned char **p, unsigned char *start,
const char *t, size_t size )
{
int ret;
size_t len = 0;
/*
* write MBEDTLS_ASN1_UTC_TIME if year < 2050 (2 bytes shorter)
*/
if( t[0] == '2' && t[1] == '0' && t[2] < '5' )
{
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start,
(const unsigned char *) t + 2,
size - 2 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_UTC_TIME ) );
}
else
{
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_raw_buffer( p, start,
(const unsigned char *) t,
size ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( p, start, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( p, start, MBEDTLS_ASN1_GENERALIZED_TIME ) );
}
return( (int) len );
}
int mbedtls_x509write_crt_der( mbedtls_x509write_cert *ctx, unsigned char *buf, size_t size,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
const char *sig_oid;
size_t sig_oid_len = 0;
unsigned char *c, *c2;
unsigned char hash[64];
unsigned char sig[MBEDTLS_MPI_MAX_SIZE];
unsigned char tmp_buf[2048];
size_t sub_len = 0, pub_len = 0, sig_and_oid_len = 0, sig_len;
size_t len = 0;
mbedtls_pk_type_t pk_alg;
/*
* Prepare data to be signed in tmp_buf
*/
c = tmp_buf + sizeof( tmp_buf );
/* Signature algorithm needed in TBS, and later for actual signature */
/* There's no direct way of extracting a signature algorithm
* (represented as an element of mbedtls_pk_type_t) from a PK instance. */
if( mbedtls_pk_can_do( ctx->issuer_key, MBEDTLS_PK_RSA ) )
pk_alg = MBEDTLS_PK_RSA;
else if( mbedtls_pk_can_do( ctx->issuer_key, MBEDTLS_PK_ECDSA ) )
pk_alg = MBEDTLS_PK_ECDSA;
else
return( MBEDTLS_ERR_X509_INVALID_ALG );
if( ( ret = mbedtls_oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg,
&sig_oid, &sig_oid_len ) ) != 0 )
{
return( ret );
}
/*
* Extensions ::= SEQUENCE SIZE (1..MAX) OF Extension
*/
/* Only for v3 */
if( ctx->version == MBEDTLS_X509_CRT_VERSION_3 )
{
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_extensions( &c, tmp_buf, ctx->extensions ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC |
MBEDTLS_ASN1_CONSTRUCTED | 3 ) );
}
/*
* SubjectPublicKeyInfo
*/
MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_pk_write_pubkey_der( ctx->subject_key,
tmp_buf, c - tmp_buf ) );
c -= pub_len;
len += pub_len;
/*
* Subject ::= Name
*/
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, tmp_buf, ctx->subject ) );
/*
* Validity ::= SEQUENCE {
* notBefore Time,
* notAfter Time }
*/
sub_len = 0;
MBEDTLS_ASN1_CHK_ADD( sub_len, x509_write_time( &c, tmp_buf, ctx->not_after,
MBEDTLS_X509_RFC5280_UTC_TIME_LEN ) );
MBEDTLS_ASN1_CHK_ADD( sub_len, x509_write_time( &c, tmp_buf, ctx->not_before,
MBEDTLS_X509_RFC5280_UTC_TIME_LEN ) );
len += sub_len;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, sub_len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
/*
* Issuer ::= Name
*/
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, tmp_buf, ctx->issuer ) );
/*
* Signature ::= AlgorithmIdentifier
*/
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_algorithm_identifier( &c, tmp_buf,
sig_oid, strlen( sig_oid ), 0 ) );
/*
* Serial ::= INTEGER
*/
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_mpi( &c, tmp_buf, &ctx->serial ) );
/*
* Version ::= INTEGER { v1(0), v2(1), v3(2) }
*/
/* Can be omitted for v1 */
if( ctx->version != MBEDTLS_X509_CRT_VERSION_1 )
{
sub_len = 0;
MBEDTLS_ASN1_CHK_ADD( sub_len, mbedtls_asn1_write_int( &c, tmp_buf, ctx->version ) );
len += sub_len;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, sub_len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONTEXT_SPECIFIC |
MBEDTLS_ASN1_CONSTRUCTED | 0 ) );
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
/*
* Make signature
*/
if( ( ret = mbedtls_md( mbedtls_md_info_from_type( ctx->md_alg ), c,
len, hash ) ) != 0 )
{
return( ret );
}
if( ( ret = mbedtls_pk_sign( ctx->issuer_key, ctx->md_alg, hash, 0, sig, &sig_len,
f_rng, p_rng ) ) != 0 )
{
return( ret );
}
/*
* Write data to output buffer
*/
c2 = buf + size;
MBEDTLS_ASN1_CHK_ADD( sig_and_oid_len, mbedtls_x509_write_sig( &c2, buf,
sig_oid, sig_oid_len, sig, sig_len ) );
if( len > (size_t)( c2 - buf ) )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
c2 -= len;
memcpy( c2, c, len );
len += sig_and_oid_len;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c2, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c2, buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return( (int) len );
}
#define PEM_BEGIN_CRT "-----BEGIN CERTIFICATE-----\n"
#define PEM_END_CRT "-----END CERTIFICATE-----\n"
#if defined(MBEDTLS_PEM_WRITE_C)
int mbedtls_x509write_crt_pem( mbedtls_x509write_cert *crt, unsigned char *buf, size_t size,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
unsigned char output_buf[4096];
size_t olen = 0;
if( ( ret = mbedtls_x509write_crt_der( crt, output_buf, sizeof(output_buf),
f_rng, p_rng ) ) < 0 )
{
return( ret );
}
if( ( ret = mbedtls_pem_write_buffer( PEM_BEGIN_CRT, PEM_END_CRT,
output_buf + sizeof(output_buf) - ret,
ret, buf, size, &olen ) ) != 0 )
{
return( ret );
}
return( 0 );
}
#endif /* MBEDTLS_PEM_WRITE_C */
#endif /* MBEDTLS_X509_CRT_WRITE_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/x509write_crt.c | C | apache-2.0 | 16,517 |
/*
* X.509 Certificate Signing Request writing
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* References:
* - CSRs: PKCS#10 v1.7 aka RFC 2986
* - attributes: PKCS#9 v2.0 aka RFC 2985
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_X509_CSR_WRITE_C)
#include "mbedtls/x509_csr.h"
#include "mbedtls/oid.h"
#include "mbedtls/asn1write.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#include <stdlib.h>
#if defined(MBEDTLS_PEM_WRITE_C)
#include "mbedtls/pem.h"
#endif
void mbedtls_x509write_csr_init( mbedtls_x509write_csr *ctx )
{
memset( ctx, 0, sizeof( mbedtls_x509write_csr ) );
}
void mbedtls_x509write_csr_free( mbedtls_x509write_csr *ctx )
{
mbedtls_asn1_free_named_data_list( &ctx->subject );
mbedtls_asn1_free_named_data_list( &ctx->extensions );
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_x509write_csr ) );
}
void mbedtls_x509write_csr_set_md_alg( mbedtls_x509write_csr *ctx, mbedtls_md_type_t md_alg )
{
ctx->md_alg = md_alg;
}
void mbedtls_x509write_csr_set_key( mbedtls_x509write_csr *ctx, mbedtls_pk_context *key )
{
ctx->key = key;
}
int mbedtls_x509write_csr_set_subject_name( mbedtls_x509write_csr *ctx,
const char *subject_name )
{
return mbedtls_x509_string_to_names( &ctx->subject, subject_name );
}
int mbedtls_x509write_csr_set_extension( mbedtls_x509write_csr *ctx,
const char *oid, size_t oid_len,
const unsigned char *val, size_t val_len )
{
return mbedtls_x509_set_extension( &ctx->extensions, oid, oid_len,
0, val, val_len );
}
int mbedtls_x509write_csr_set_key_usage( mbedtls_x509write_csr *ctx, unsigned char key_usage )
{
unsigned char buf[4];
unsigned char *c;
int ret;
c = buf + 4;
if( ( ret = mbedtls_asn1_write_bitstring( &c, buf, &key_usage, 7 ) ) != 4 )
return( ret );
ret = mbedtls_x509write_csr_set_extension( ctx, MBEDTLS_OID_KEY_USAGE,
MBEDTLS_OID_SIZE( MBEDTLS_OID_KEY_USAGE ),
buf, 4 );
if( ret != 0 )
return( ret );
return( 0 );
}
int mbedtls_x509write_csr_set_ns_cert_type( mbedtls_x509write_csr *ctx,
unsigned char ns_cert_type )
{
unsigned char buf[4];
unsigned char *c;
int ret;
c = buf + 4;
if( ( ret = mbedtls_asn1_write_bitstring( &c, buf, &ns_cert_type, 8 ) ) != 4 )
return( ret );
ret = mbedtls_x509write_csr_set_extension( ctx, MBEDTLS_OID_NS_CERT_TYPE,
MBEDTLS_OID_SIZE( MBEDTLS_OID_NS_CERT_TYPE ),
buf, 4 );
if( ret != 0 )
return( ret );
return( 0 );
}
int mbedtls_x509write_csr_der( mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
const char *sig_oid;
size_t sig_oid_len = 0;
unsigned char *c, *c2;
unsigned char hash[64];
unsigned char sig[MBEDTLS_MPI_MAX_SIZE];
unsigned char tmp_buf[2048];
size_t pub_len = 0, sig_and_oid_len = 0, sig_len;
size_t len = 0;
mbedtls_pk_type_t pk_alg;
/*
* Prepare data to be signed in tmp_buf
*/
c = tmp_buf + sizeof( tmp_buf );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_extensions( &c, tmp_buf, ctx->extensions ) );
if( len )
{
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SET ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_oid( &c, tmp_buf, MBEDTLS_OID_PKCS9_CSR_EXT_REQ,
MBEDTLS_OID_SIZE( MBEDTLS_OID_PKCS9_CSR_EXT_REQ ) ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
}
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_CONTEXT_SPECIFIC ) );
MBEDTLS_ASN1_CHK_ADD( pub_len, mbedtls_pk_write_pubkey_der( ctx->key,
tmp_buf, c - tmp_buf ) );
c -= pub_len;
len += pub_len;
/*
* Subject ::= Name
*/
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_x509_write_names( &c, tmp_buf, ctx->subject ) );
/*
* Version ::= INTEGER { v1(0), v2(1), v3(2) }
*/
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_int( &c, tmp_buf, 0 ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c, tmp_buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c, tmp_buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
/*
* Prepare signature
*/
mbedtls_md( mbedtls_md_info_from_type( ctx->md_alg ), c, len, hash );
if( ( ret = mbedtls_pk_sign( ctx->key, ctx->md_alg, hash, 0, sig, &sig_len,
f_rng, p_rng ) ) != 0 )
{
return( ret );
}
if( mbedtls_pk_can_do( ctx->key, MBEDTLS_PK_RSA ) )
pk_alg = MBEDTLS_PK_RSA;
else if( mbedtls_pk_can_do( ctx->key, MBEDTLS_PK_ECDSA ) )
pk_alg = MBEDTLS_PK_ECDSA;
else
return( MBEDTLS_ERR_X509_INVALID_ALG );
if( ( ret = mbedtls_oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg,
&sig_oid, &sig_oid_len ) ) != 0 )
{
return( ret );
}
/*
* Write data to output buffer
*/
c2 = buf + size;
MBEDTLS_ASN1_CHK_ADD( sig_and_oid_len, mbedtls_x509_write_sig( &c2, buf,
sig_oid, sig_oid_len, sig, sig_len ) );
if( len > (size_t)( c2 - buf ) )
return( MBEDTLS_ERR_ASN1_BUF_TOO_SMALL );
c2 -= len;
memcpy( c2, c, len );
len += sig_and_oid_len;
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_len( &c2, buf, len ) );
MBEDTLS_ASN1_CHK_ADD( len, mbedtls_asn1_write_tag( &c2, buf, MBEDTLS_ASN1_CONSTRUCTED |
MBEDTLS_ASN1_SEQUENCE ) );
return( (int) len );
}
#define PEM_BEGIN_CSR "-----BEGIN CERTIFICATE REQUEST-----\n"
#define PEM_END_CSR "-----END CERTIFICATE REQUEST-----\n"
#if defined(MBEDTLS_PEM_WRITE_C)
int mbedtls_x509write_csr_pem( mbedtls_x509write_csr *ctx, unsigned char *buf, size_t size,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
unsigned char output_buf[4096];
size_t olen = 0;
if( ( ret = mbedtls_x509write_csr_der( ctx, output_buf, sizeof(output_buf),
f_rng, p_rng ) ) < 0 )
{
return( ret );
}
if( ( ret = mbedtls_pem_write_buffer( PEM_BEGIN_CSR, PEM_END_CSR,
output_buf + sizeof(output_buf) - ret,
ret, buf, size, &olen ) ) != 0 )
{
return( ret );
}
return( 0 );
}
#endif /* MBEDTLS_PEM_WRITE_C */
#endif /* MBEDTLS_X509_CSR_WRITE_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/x509write_csr.c | C | apache-2.0 | 8,599 |
/*
* An 32-bit implementation of the XTEA algorithm
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_XTEA_C)
#include "mbedtls/xtea.h"
#include "mbedtls/platform_util.h"
#include <string.h>
#if defined(MBEDTLS_SELF_TEST)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#endif /* MBEDTLS_PLATFORM_C */
#endif /* MBEDTLS_SELF_TEST */
#if !defined(MBEDTLS_XTEA_ALT)
/*
* 32-bit integer manipulation macros (big endian)
*/
#ifndef GET_UINT32_BE
#define GET_UINT32_BE(n,b,i) \
{ \
(n) = ( (uint32_t) (b)[(i) ] << 24 ) \
| ( (uint32_t) (b)[(i) + 1] << 16 ) \
| ( (uint32_t) (b)[(i) + 2] << 8 ) \
| ( (uint32_t) (b)[(i) + 3] ); \
}
#endif
#ifndef PUT_UINT32_BE
#define PUT_UINT32_BE(n,b,i) \
{ \
(b)[(i) ] = (unsigned char) ( (n) >> 24 ); \
(b)[(i) + 1] = (unsigned char) ( (n) >> 16 ); \
(b)[(i) + 2] = (unsigned char) ( (n) >> 8 ); \
(b)[(i) + 3] = (unsigned char) ( (n) ); \
}
#endif
void mbedtls_xtea_init( mbedtls_xtea_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_xtea_context ) );
}
void mbedtls_xtea_free( mbedtls_xtea_context *ctx )
{
if( ctx == NULL )
return;
mbedtls_platform_zeroize( ctx, sizeof( mbedtls_xtea_context ) );
}
/*
* XTEA key schedule
*/
void mbedtls_xtea_setup( mbedtls_xtea_context *ctx, const unsigned char key[16] )
{
int i;
memset( ctx, 0, sizeof(mbedtls_xtea_context) );
for( i = 0; i < 4; i++ )
{
GET_UINT32_BE( ctx->k[i], key, i << 2 );
}
}
/*
* XTEA encrypt function
*/
int mbedtls_xtea_crypt_ecb( mbedtls_xtea_context *ctx, int mode,
const unsigned char input[8], unsigned char output[8])
{
uint32_t *k, v0, v1, i;
k = ctx->k;
GET_UINT32_BE( v0, input, 0 );
GET_UINT32_BE( v1, input, 4 );
if( mode == MBEDTLS_XTEA_ENCRYPT )
{
uint32_t sum = 0, delta = 0x9E3779B9;
for( i = 0; i < 32; i++ )
{
v0 += (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + k[sum & 3]);
sum += delta;
v1 += (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + k[(sum>>11) & 3]);
}
}
else /* MBEDTLS_XTEA_DECRYPT */
{
uint32_t delta = 0x9E3779B9, sum = delta * 32;
for( i = 0; i < 32; i++ )
{
v1 -= (((v0 << 4) ^ (v0 >> 5)) + v0) ^ (sum + k[(sum>>11) & 3]);
sum -= delta;
v0 -= (((v1 << 4) ^ (v1 >> 5)) + v1) ^ (sum + k[sum & 3]);
}
}
PUT_UINT32_BE( v0, output, 0 );
PUT_UINT32_BE( v1, output, 4 );
return( 0 );
}
#if defined(MBEDTLS_CIPHER_MODE_CBC)
/*
* XTEA-CBC buffer encryption/decryption
*/
int mbedtls_xtea_crypt_cbc( mbedtls_xtea_context *ctx, int mode, size_t length,
unsigned char iv[8], const unsigned char *input,
unsigned char *output)
{
int i;
unsigned char temp[8];
if( length % 8 )
return( MBEDTLS_ERR_XTEA_INVALID_INPUT_LENGTH );
if( mode == MBEDTLS_XTEA_DECRYPT )
{
while( length > 0 )
{
memcpy( temp, input, 8 );
mbedtls_xtea_crypt_ecb( ctx, mode, input, output );
for( i = 0; i < 8; i++ )
output[i] = (unsigned char)( output[i] ^ iv[i] );
memcpy( iv, temp, 8 );
input += 8;
output += 8;
length -= 8;
}
}
else
{
while( length > 0 )
{
for( i = 0; i < 8; i++ )
output[i] = (unsigned char)( input[i] ^ iv[i] );
mbedtls_xtea_crypt_ecb( ctx, mode, output, output );
memcpy( iv, output, 8 );
input += 8;
output += 8;
length -= 8;
}
}
return( 0 );
}
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#endif /* !MBEDTLS_XTEA_ALT */
#if defined(MBEDTLS_SELF_TEST)
/*
* XTEA tests vectors (non-official)
*/
static const unsigned char xtea_test_key[6][16] =
{
{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f },
{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f },
{ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b,
0x0c, 0x0d, 0x0e, 0x0f },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00 },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00 },
{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00 }
};
static const unsigned char xtea_test_pt[6][8] =
{
{ 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48 },
{ 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 },
{ 0x5a, 0x5b, 0x6e, 0x27, 0x89, 0x48, 0xd7, 0x7f },
{ 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48 },
{ 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 },
{ 0x70, 0xe1, 0x22, 0x5d, 0x6e, 0x4e, 0x76, 0x55 }
};
static const unsigned char xtea_test_ct[6][8] =
{
{ 0x49, 0x7d, 0xf3, 0xd0, 0x72, 0x61, 0x2c, 0xb5 },
{ 0xe7, 0x8f, 0x2d, 0x13, 0x74, 0x43, 0x41, 0xd8 },
{ 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 },
{ 0xa0, 0x39, 0x05, 0x89, 0xf8, 0xb8, 0xef, 0xa5 },
{ 0xed, 0x23, 0x37, 0x5a, 0x82, 0x1a, 0x8c, 0x2d },
{ 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41 }
};
/*
* Checkup routine
*/
int mbedtls_xtea_self_test( int verbose )
{
int i, ret = 0;
unsigned char buf[8];
mbedtls_xtea_context ctx;
mbedtls_xtea_init( &ctx );
for( i = 0; i < 6; i++ )
{
if( verbose != 0 )
mbedtls_printf( " XTEA test #%d: ", i + 1 );
memcpy( buf, xtea_test_pt[i], 8 );
mbedtls_xtea_setup( &ctx, xtea_test_key[i] );
mbedtls_xtea_crypt_ecb( &ctx, MBEDTLS_XTEA_ENCRYPT, buf, buf );
if( memcmp( buf, xtea_test_ct[i], 8 ) != 0 )
{
if( verbose != 0 )
mbedtls_printf( "failed\n" );
ret = 1;
goto exit;
}
if( verbose != 0 )
mbedtls_printf( "passed\n" );
}
if( verbose != 0 )
mbedtls_printf( "\n" );
exit:
mbedtls_xtea_free( &ctx );
return( ret );
}
#endif /* MBEDTLS_SELF_TEST */
#endif /* MBEDTLS_XTEA_C */
| YifuLiu/AliOS-Things | components/mbedtls/library/xtea.c | C | apache-2.0 | 7,384 |
/*
* Copyright (C) 2018 Alibaba Group Holding Limited
*/
#ifndef MBEDTLS_THREADING_ALT_H
#define MBEDTLS_THREADING_ALT_H
#include <stdlib.h>
#include <aos/kernel.h>
#ifdef __cplusplus
extern "C" {
#endif
typedef struct
{
aos_mutex_t mutex;
char is_valid;
} mbedtls_threading_mutex_t;
void threading_mutex_init( mbedtls_threading_mutex_t *mutex );
void threading_mutex_free( mbedtls_threading_mutex_t *mutex );
int threading_mutex_lock( mbedtls_threading_mutex_t *mutex );
int threading_mutex_unlock( mbedtls_threading_mutex_t *mutex );
#ifdef __cplusplus
}
#endif
#endif /* MBEDTLS_THREADING_ALT_H */
| YifuLiu/AliOS-Things | components/mbedtls/platform/aos/include/threading_alt.h | C | apache-2.0 | 618 |
/*
* TCP/IP or UDP/IP networking functions
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if !defined(MBEDTLS_NET_C)
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include "mbedtls/net_sockets.h"
#if defined(STM32_USE_SPI_WIFI)
#include "stm32_wifi.h"
#define WIFI_WRITE_TIMEOUT 200
#define WIFI_READ_TIMEOUT 200
#define WIFI_PAYLOAD_SIZE ES_WIFI_PAYLOAD_SIZE
#define WIFI_READ_RETRY_TIME 5
void mbedtls_net_init( mbedtls_net_context *ctx )
{
ctx->fd = -1;
}
int mbedtls_net_connect( mbedtls_net_context *ctx, const char *host, const char *port, int proto )
{
WIFI_Status_t ret;
WIFI_Protocol_t type;
uint8_t ip_addr[4];
ret = WIFI_GetHostAddress( (char *)host, ip_addr );
if( ret != WIFI_STATUS_OK )
return( MBEDTLS_ERR_NET_UNKNOWN_HOST );
type = ( proto == MBEDTLS_NET_PROTO_UDP ?
WIFI_UDP_PROTOCOL : WIFI_TCP_PROTOCOL );
ret = WIFI_OpenClientConnection( 0, type, "", ip_addr, atoi(port), 0 );
if( ret != WIFI_STATUS_OK )
return( MBEDTLS_ERR_NET_CONNECT_FAILED );
ctx->fd = 0;
return( ret );
}
int mbedtls_net_recv( void *ctx, unsigned char *buf, size_t len )
{
WIFI_Status_t ret;
uint16_t recv_size;
int fd = ((mbedtls_net_context *) ctx)->fd;
if (fd < 0)
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
if ( len > WIFI_PAYLOAD_SIZE )
len = WIFI_PAYLOAD_SIZE;
int err_count = 0;
do
{
ret = WIFI_ReceiveData( (uint8_t)fd,
buf, (uint16_t)len,
&recv_size, WIFI_READ_TIMEOUT );
if( ret != WIFI_STATUS_OK )
return( MBEDTLS_ERR_NET_RECV_FAILED );
if( recv_size == 0 )
{
if( err_count == WIFI_READ_RETRY_TIME )
return( MBEDTLS_ERR_SSL_WANT_READ );
else
err_count++;
}
} while( ( ret == WIFI_STATUS_OK ) && ( recv_size == 0 ) );
return( recv_size );
}
int mbedtls_net_recv_timeout( void *ctx, unsigned char *buf, size_t len,
uint32_t timeout )
{
WIFI_Status_t ret;
uint16_t recv_size;
int fd = ((mbedtls_net_context *) ctx)->fd;
if( fd < 0 )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
if( len > WIFI_PAYLOAD_SIZE )
len = WIFI_PAYLOAD_SIZE;
int err_count = 0;
do
{
ret = WIFI_ReceiveData( (uint8_t)fd,
buf, (uint16_t)len,
&recv_size, WIFI_READ_TIMEOUT );
if( ret != WIFI_STATUS_OK )
return( MBEDTLS_ERR_NET_RECV_FAILED );
if( recv_size == 0 )
{
if( err_count == WIFI_READ_RETRY_TIME )
return( MBEDTLS_ERR_SSL_WANT_READ );
else
err_count++;
}
} while( ( ret == WIFI_STATUS_OK ) && ( recv_size == 0 ) );
return( recv_size );
}
int mbedtls_net_send( void *ctx, const unsigned char *buf, size_t len )
{
WIFI_Status_t ret;
uint16_t send_size;
uint16_t once_len;
uint8_t *pdata = (uint8_t *)buf;
uint16_t send_total = 0;
int fd = ((mbedtls_net_context *) ctx)->fd;
if( fd < 0 )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
do
{
if( len > WIFI_PAYLOAD_SIZE )
{
once_len = WIFI_PAYLOAD_SIZE;
len -= WIFI_PAYLOAD_SIZE;
}
else
{
once_len = len;
len = 0;
}
ret = WIFI_SendData( (uint8_t)fd,
pdata, once_len,
&send_size, WIFI_WRITE_TIMEOUT );
if( ret != WIFI_STATUS_OK )
return( MBEDTLS_ERR_NET_SEND_FAILED );
pdata += once_len;
send_total += send_size;
} while ( len > 0 );
return( send_total );
}
void mbedtls_net_free( mbedtls_net_context *ctx )
{
WIFI_Status_t ret;
if (ctx->fd == -1)
return;
ret = WIFI_CloseClientConnection( (uint32_t)ctx->fd );
if( ret != WIFI_STATUS_OK )
return;
ctx->fd = -1;
}
#else /* STM32_USE_SPI_WIFI */
#include <fcntl.h>
#include <unistd.h>
#include <netdb.h>
#include <sys/socket.h>
void mbedtls_net_init( mbedtls_net_context *ctx )
{
ctx->fd = -1;
}
int mbedtls_net_connect( mbedtls_net_context *ctx, const char *host, const char *port, int proto )
{
int ret;
struct addrinfo hints, *addr_list, *cur;
memset( &hints, 0, sizeof( hints ) );
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = proto == MBEDTLS_NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM;
hints.ai_protocol = proto == MBEDTLS_NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP;
if( getaddrinfo( host, port, &hints, &addr_list ) != 0 )
return( MBEDTLS_ERR_NET_UNKNOWN_HOST );
ret = MBEDTLS_ERR_NET_UNKNOWN_HOST;
for( cur = addr_list; cur != NULL; cur = cur->ai_next )
{
ctx->fd = (int) socket( cur->ai_family,
cur->ai_socktype, cur->ai_protocol );
if( ctx->fd < 0 )
{
ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
continue;
}
do
{
ret = connect( ctx->fd, cur->ai_addr, cur->ai_addrlen );
if( ret == 0 )
goto out;
else
{
if (errno == EINTR)
continue;
break;
}
} while( 1 );
close( ctx->fd );
ret = MBEDTLS_ERR_NET_CONNECT_FAILED;
}
out:
freeaddrinfo( addr_list );
return( ret );
}
static int net_would_block( const mbedtls_net_context *ctx )
{
int err = errno;
/*
* Never return 'WOULD BLOCK' on a non-blocking socket
*/
if( ( fcntl( ctx->fd, F_GETFL, 0) & O_NONBLOCK ) != O_NONBLOCK )
{
errno = err;
return( 0 );
}
switch( errno = err )
{
#if defined EAGAIN
case EAGAIN:
#endif
#if defined EWOULDBLOCK && EWOULDBLOCK != EAGAIN
case EWOULDBLOCK:
#endif
return( 1 );
}
return( 0 );
}
int mbedtls_net_set_block( mbedtls_net_context *ctx )
{
int flags;
flags = fcntl( ctx->fd, F_GETFL, 0 );
flags &= ~O_NONBLOCK;
return fcntl( ctx->fd, F_SETFL, flags );
}
int mbedtls_net_set_nonblock( mbedtls_net_context *ctx )
{
int flags;
flags = fcntl( ctx->fd, F_GETFL, 0 );
flags |= O_NONBLOCK;
return fcntl( ctx->fd, F_SETFL, flags );
}
int mbedtls_net_recv( void *ctx, unsigned char *buf, size_t len )
{
int ret;
int fd = ((mbedtls_net_context *) ctx)->fd;
if( fd < 0 )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
ret = (int) read( fd, buf, len );
if( ret < 0 )
{
if( net_would_block( ctx ) != 0 )
return( MBEDTLS_ERR_SSL_WANT_READ );
if( errno == EPIPE || errno == ECONNRESET )
return( MBEDTLS_ERR_NET_CONN_RESET );
if( errno == EINTR )
return( MBEDTLS_ERR_SSL_WANT_READ );
return( MBEDTLS_ERR_NET_RECV_FAILED );
}
return( ret );
}
int mbedtls_net_recv_timeout( void *ctx, unsigned char *buf, size_t len,
uint32_t timeout )
{
int ret;
struct timeval tv;
fd_set read_fds;
int fd = ((mbedtls_net_context *) ctx)->fd;
if( fd < 0 )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
FD_ZERO( &read_fds );
FD_SET( fd, &read_fds );
tv.tv_sec = timeout / 1000;
tv.tv_usec = ( timeout % 1000 ) * 1000;
ret = select( fd + 1, &read_fds, NULL, NULL, timeout == 0 ? NULL : &tv );
if( ret == 0 )
return( MBEDTLS_ERR_SSL_TIMEOUT );
if( ret < 0 )
{
if( errno == EINTR )
return( MBEDTLS_ERR_SSL_WANT_READ );
return( MBEDTLS_ERR_NET_RECV_FAILED );
}
return( mbedtls_net_recv( ctx, buf, len ) );
}
int mbedtls_net_send(void *ctx, const unsigned char *buf, size_t len)
{
int ret;
int fd = ((mbedtls_net_context *) ctx)->fd;
if( fd < 0 )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
ret = (int) write( fd, buf, len );
if( ret < 0 )
{
if( net_would_block( ctx ) != 0 )
return( MBEDTLS_ERR_SSL_WANT_WRITE );
if( errno == EPIPE || errno == ECONNRESET )
return( MBEDTLS_ERR_NET_CONN_RESET );
if( errno == EINTR )
return( MBEDTLS_ERR_SSL_WANT_WRITE );
return( MBEDTLS_ERR_NET_SEND_FAILED );
}
return ret;
}
void mbedtls_net_free( mbedtls_net_context *ctx )
{
if( ctx->fd == -1 )
return;
shutdown( ctx->fd, 2 );
close( ctx->fd );
ctx->fd = -1;
}
#endif /* STM32_USE_SPI_WIFI */
#endif /* MBEDTLS_NET_C */
| YifuLiu/AliOS-Things | components/mbedtls/platform/aos/library/net_sockets.c | C | apache-2.0 | 9,432 |
/*
* Copyright (C) 2015-2018 Alibaba Group Holding Limited
*/
/* This file provides implementation of common (libc) functions that is defined
* in platform abstraction layer for AliOS Things.
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include <stdlib.h>
#include <string.h>
#include <aos/kernel.h>
#if defined(MBEDTLS_PLATFORM_MEMORY)
#if defined(XTENSA_MALLOC_IRAM)
extern void *iram_heap_malloc( size_t xWantedSize );
extern void iram_heap_free( void *pv );
extern int iram_heap_check_addr( void *addr );
void * aos_mbedtls_calloc( size_t n, size_t size )
{
void *buf = NULL;
if( ( n == 0 ) || ( size == 0 ) )
return( NULL );
buf = iram_heap_malloc( n * size );
if( buf == NULL )
buf = malloc( n * size );
if( buf == NULL )
return( NULL );
else
memset( buf, 0, n * size );
return( buf );
}
void aos_mbedtls_free( void *ptr )
{
if( ptr == NULL )
return;
if( iram_heap_check_addr( ptr ) == 1 )
iram_heap_free( ptr );
else
free( ptr );
}
#else /*XTENSA_MALLOC_IRAM*/
void * aos_mbedtls_calloc( size_t n, size_t size )
{
void *buf = NULL;
buf = aos_malloc(n * size);
if( buf == NULL )
return( NULL );
else
memset(buf, 0, n * size);
return( buf );
}
void aos_mbedtls_free( void *ptr )
{
if( ptr == NULL )
return;
aos_free( ptr );
}
#endif /*XTENSA_MALLOC_IRAM*/
#endif /*MBEDTLS_PLATFORM_MEMORY*/
#endif /*MBEDTLS_PLATFORM_C*/
| YifuLiu/AliOS-Things | components/mbedtls/platform/aos/library/platform.c | C | apache-2.0 | 1,593 |
/*
* Copyright (C) 2018 Alibaba Group Holding Limited
*/
/* This file provides threading mutex implementation for AliOS Things. */
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_THREADING_ALT)
#include <aos/kernel.h>
#include "mbedtls/threading.h"
void threading_mutex_init( mbedtls_threading_mutex_t *mutex )
{
if( mutex == NULL )
return;
mutex->is_valid = ( aos_mutex_new( &mutex->mutex ) == 0 );
}
void threading_mutex_free( mbedtls_threading_mutex_t *mutex )
{
if( mutex == NULL || !mutex->is_valid )
return;
aos_mutex_free( &mutex->mutex );
mutex->is_valid = 0;
}
int threading_mutex_lock( mbedtls_threading_mutex_t *mutex )
{
if( mutex == NULL || !mutex->is_valid )
return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
if( aos_mutex_lock( &mutex->mutex, AOS_WAIT_FOREVER ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
return( 0 );
}
int threading_mutex_unlock( mbedtls_threading_mutex_t *mutex )
{
if( mutex == NULL || ! mutex->is_valid )
return( MBEDTLS_ERR_THREADING_BAD_INPUT_DATA );
if( aos_mutex_unlock( &mutex->mutex ) != 0 )
return( MBEDTLS_ERR_THREADING_MUTEX_ERROR );
return( 0 );
}
#endif /* MBEDTLS_THREADING_ALT */
| YifuLiu/AliOS-Things | components/mbedtls/platform/aos/library/threading_alt.c | C | apache-2.0 | 1,321 |
/*
* Copyright (C) 2019 Alibaba Group Holding Limited
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef MBEDTLS_CONFIG_H
#define MBEDTLS_CONFIG_H
/* Platform configuration
* These configurations can't placed into package.yaml, that can produce too long
* parameters in building commands to cause building error in windows.
*/
#ifndef MBEDTLS_CONFIG_CRYPTO
#define MBEDTLS_CONFIG_CRYPTO 1
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_MD5
#define MBEDTLS_CONFIG_CRYPTO_MD5 1
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_SHA1
#define MBEDTLS_CONFIG_CRYPTO_SHA1 1
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_SHA256
#define MBEDTLS_CONFIG_CRYPTO_SHA256 1
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_SHA512
#define MBEDTLS_CONFIG_CRYPTO_SHA512 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_RIPEMD160
#define MBEDTLS_CONFIG_CRYPTO_RIPEMD160 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_ARIA
#define MBEDTLS_CONFIG_CRYPTO_ARIA 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_DES
#define MBEDTLS_CONFIG_CRYPTO_DES 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_AES
#define MBEDTLS_CONFIG_CRYPTO_AES 1
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_AES_ROM_TABLES
#define MBEDTLS_CONFIG_CRYPTO_AES_ROM_TABLES 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_AES_FEWER_TABLES
#define MBEDTLS_CONFIG_CRYPTO_AES_FEWER_TABLES 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_MODE_CBC
#define MBEDTLS_CONFIG_CRYPTO_MODE_CBC 1
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_MODE_CFB
#define MBEDTLS_CONFIG_CRYPTO_MODE_CFB 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_MODE_CTR
#define MBEDTLS_CONFIG_CRYPTO_MODE_CTR 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_MODE_OFB
#define MBEDTLS_CONFIG_CRYPTO_MODE_OFB 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_MODE_XTS
#define MBEDTLS_CONFIG_CRYPTO_MODE_XTS 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_MODE_GCM
#define MBEDTLS_CONFIG_CRYPTO_MODE_GCM 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_MODE_CCM
#define MBEDTLS_CONFIG_CRYPTO_MODE_CCM 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_ARC4
#define MBEDTLS_CONFIG_CRYPTO_ARC4 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_BLOWFISH
#define MBEDTLS_CONFIG_CRYPTO_BLOWFISH 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_CAMELLIA
#define MBEDTLS_CONFIG_CRYPTO_CAMELLIA 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_XTEA
#define MBEDTLS_CONFIG_CRYPTO_XTEA 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_CHACHA20
#define MBEDTLS_CONFIG_CRYPTO_CHACHA20 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_POLY1305
#define MBEDTLS_CONFIG_CRYPTO_POLY1305 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_CHACHAPOLY
#define MBEDTLS_CONFIG_CRYPTO_CHACHAPOLY 0
#endif
#ifndef MBEDTLS_CONFIG_X509
#define MBEDTLS_CONFIG_X509 1
#endif
#ifndef MBEDTLS_CONFIG_TLS
#define MBEDTLS_CONFIG_TLS 1
#endif
#ifdef MBEDTLS_CONFIG_TLS1_2
#define MBEDTLS_CONFIG_TLS1_2 1
#endif
#ifndef MBEDTLS_CONFIG_DTLS
#define MBEDTLS_CONFIG_DTLS 1
#endif
#ifdef MBEDTLS_CONFIG_TLS_DEBUG
#define MBEDTLS_CONFIG_TLS_DEBUG 0
#endif
#ifndef MBEDTLS_CONFIG_TLS_MAX_CONTENT_LEN
#define MBEDTLS_CONFIG_TLS_MAX_CONTENT_LEN 4096
#endif
#ifndef MBEDTLS_CONFIG_SELFTEST
#define MBEDTLS_CONFIG_SELFTEST 0
#endif
#ifndef MBEDTLS_CONFIG_ERROR
#define MBEDTLS_CONFIG_ERROR 0
#endif
#ifndef MBEDTLS_CONFIG_CRYPTO_ECP
#define MBEDTLS_CONFIG_CRYPTO_ECP 0
#endif
/* System support */
#define MBEDTLS_HAVE_ASM
#define MBEDTLS_NO_UDBL_DIVISION
#define MBEDTLS_NO_64BIT_MULTIPLICATION
#define MBEDTLS_HAVE_TIME
#define MBEDTLS_PLATFORM_MEMORY
/* mbed TLS feature support */
#define MBEDTLS_CIPHER_PADDING_PKCS7
#define MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS
#define MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN
#define MBEDTLS_CIPHER_PADDING_ZEROS
#define MBEDTLS_REMOVE_ARC4_CIPHERSUITES
#define MBEDTLS_ERROR_STRERROR_DUMMY
#define MBEDTLS_GENPRIME
#define MBEDTLS_PKCS1_V15
#define MBEDTLS_PKCS1_V21
#define MBEDTLS_THREADING_ALT
#define MBEDTLS_VERSION_FEATURES
#if (MBEDTLS_CONFIG_CRYPTO_AES_ROM_TABLES > 0)
#define MBEDTLS_AES_ROM_TABLES
#endif
#if (MBEDTLS_CONFIG_CRYPTO_AES_FEWER_TABLES > 0)
#define MBEDTLS_AES_FEWER_TABLES
#endif
#if (MBEDTLS_CONFIG_CRYPTO_MODE_CBC > 0)
#define MBEDTLS_CIPHER_MODE_CBC
#endif
#if (MBEDTLS_CONFIG_CRYPTO_MODE_CFB > 0)
#define MBEDTLS_CIPHER_MODE_CFB
#endif
#if (MBEDTLS_CONFIG_CRYPTO_MODE_CTR > 0)
#define MBEDTLS_CIPHER_MODE_CTR
#endif
#if (MBEDTLS_CONFIG_CRYPTO_MODE_OFB > 0)
#define MBEDTLS_CIPHER_MODE_OFB
#endif
#if (MBEDTLS_CONFIG_CRYPTO_MODE_XTS > 0)
#define MBEDTLS_CIPHER_MODE_XTS
#endif
#if (MBEDTLS_CONFIG_SELFTEST > 0)
#define MBEDTLS_SELF_TEST
#endif
#if (MBEDTLS_CONFIG_TLS > 0)
#define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
#define MBEDTLS_SSL_ALL_ALERT_MESSAGES
#define MBEDTLS_SSL_ENCRYPT_THEN_MAC
#define MBEDTLS_SSL_EXTENDED_MASTER_SECRET
#define MBEDTLS_SSL_FALLBACK_SCSV
#define MBEDTLS_SSL_RENEGOTIATION
#define MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
#define MBEDTLS_SSL_PROTO_TLS1_2
#if (MBEDTLS_CONFIG_DTLS > 0)
#define MBEDTLS_SSL_PROTO_DTLS
#endif
#define MBEDTLS_SSL_ALPN
#define MBEDTLS_SSL_DTLS_ANTI_REPLAY
#define MBEDTLS_SSL_DTLS_HELLO_VERIFY
#define MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE
#define MBEDTLS_SSL_DTLS_BADMAC_LIMIT
#define MBEDTLS_SSL_SESSION_TICKETS
#define MBEDTLS_SSL_EXPORT_KEYS
#define MBEDTLS_SSL_SERVER_NAME_INDICATION
#define MBEDTLS_SSL_TRUNCATED_HMAC
#endif /* MBEDTLS_CONFIG_TLS */
#if (MBEDTLS_CONFIG_X509 > 0)
#define MBEDTLS_X509_CHECK_KEY_USAGE
#define MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
#define MBEDTLS_X509_RSASSA_PSS_SUPPORT
#endif
/* mbed TLS modules */
#define MBEDTLS_ASN1_PARSE_C
#define MBEDTLS_ASN1_WRITE_C
#define MBEDTLS_BASE64_C
#define MBEDTLS_BIGNUM_C
#define MBEDTLS_CIPHER_C
#define MBEDTLS_HKDF_C
#define MBEDTLS_HMAC_DRBG_C
#define MBEDTLS_OID_C
#define MBEDTLS_PEM_PARSE_C
#define MBEDTLS_MD_C
#define MBEDTLS_PK_C
#define MBEDTLS_PK_PARSE_C
#define MBEDTLS_PKCS5_C
#define MBEDTLS_PKCS12_C
#define MBEDTLS_PLATFORM_C
#define MBEDTLS_THREADING_C
#define MBEDTLS_TIMING_C
#define MBEDTLS_VERSION_C
#define MBEDTLS_RSA_C
#define MBEDTLS_HAVEGE_C
#if (MBEDTLS_CONFIG_CRYPTO_ECP > 0)
#define MBEDTLS_ECP_DP_SECP192R1_ENABLED
#define MBEDTLS_ECP_DP_SECP224R1_ENABLED
#define MBEDTLS_ECP_DP_SECP256R1_ENABLED
#define MBEDTLS_ECP_DP_SECP384R1_ENABLED
#define MBEDTLS_ECP_DP_SECP521R1_ENABLED
#define MBEDTLS_ECP_DP_SECP192K1_ENABLED
#define MBEDTLS_ECP_DP_SECP224K1_ENABLED
#define MBEDTLS_ECP_DP_SECP256K1_ENABLED
#define MBEDTLS_ECP_DP_BP256R1_ENABLED
#define MBEDTLS_ECP_DP_BP384R1_ENABLED
#define MBEDTLS_ECP_DP_BP512R1_ENABLED
#define MBEDTLS_ECP_DP_CURVE25519_ENABLED
#define MBEDTLS_ECP_DP_CURVE448_ENABLED
#define MBEDTLS_BIGNUM_C
#define MBEDTLS_ECP_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_AES > 0)
#define MBEDTLS_AES_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_ARC4 > 0)
#define MBEDTLS_ARC4_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_BLOWFISH > 0)
#define MBEDTLS_BLOWFISH_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_CAMELLIA > 0)
#define MBEDTLS_CAMELLIA_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_ARIA > 0)
#define MBEDTLS_ARIA_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_MODE_CCM > 0)
#define MBEDTLS_CCM_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_MODE_GCM > 0)
#define MBEDTLS_GCM_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_CHACHA20 > 0)
#define MBEDTLS_CHACHA20_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_POLY1305 > 0)
#define MBEDTLS_POLY1305_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_CHACHAPOLY > 0)
#define MBEDTLS_CHACHAPOLY_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_DES > 0)
#define MBEDTLS_DES_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_XTEA > 0)
#define MBEDTLS_XTEA_C
#endif
#if (MBEDTLS_CONFIG_TLS_DEBUG > 0)
#define MBEDTLS_DEBUG_C
#endif
#if (MBEDTLS_CONFIG_ERROR > 0)
#define MBEDTLS_ERROR_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_MD5 > 0)
#define MBEDTLS_MD5_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_RIPEMD160 > 0)
#define MBEDTLS_RIPEMD160_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_SHA1 > 0)
#define MBEDTLS_SHA1_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_SHA256 > 0)
#define MBEDTLS_SHA256_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_SHA512 > 0)
#define MBEDTLS_SHA512_C
#endif
#if (MBEDTLS_CONFIG_TLS > 0)
#define MBEDTLS_SSL_CACHE_C
#define MBEDTLS_SSL_COOKIE_C
#define MBEDTLS_SSL_CLI_C
#define MBEDTLS_SSL_TLS_C
#endif
#ifdef LWM2M_WITH_MBEDTLS
#if (MBEDTLS_CONFIG_DTLS > 0)
#define MBEDTLS_SSL_SRV_C
#endif
#if (MBEDTLS_CONFIG_CRYPTO_AES > 0)
#define MBEDTLS_CTR_DRBG_C
#endif
#endif /* LWM2M_WITH_MBEDTLS */
#if (MBEDTLS_CONFIG_X509 > 0)
#define MBEDTLS_X509_USE_C
#define MBEDTLS_X509_CRT_PARSE_C
#define MBEDTLS_X509_CRL_PARSE_C
#endif
/* Module configuration options */
#if (MBEDTLS_CONFIG_TLS > 0)
#define MBEDTLS_SSL_MAX_CONTENT_LEN MBEDTLS_CONFIG_TLS_MAX_CONTENT_LEN
#define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE
#endif
#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
/*
* User custom configuration file to add or override the above default
* configurations
*/
#if defined(MBEDTLS_CONFIG_USER_FILE)
#include MBEDTLS_CONFIG_USER_FILE
#endif
#include "mbedtls/check_config.h"
#endif /* MBEDTLS_CONFIG_H */
| YifuLiu/AliOS-Things | components/mbedtls/platform/include/config_aos_base.h | C | apache-2.0 | 9,343 |
/*
* Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
* Distinguishing features:
* - no bignum, no PK, no X509
* - fully modern and secure (provided the pre-shared keys have high entropy)
* - very low record overhead with CCM-8
* - optimized for low RAM usage
*
* See README.txt for usage instructions.
*/
#ifndef MBEDTLS_CONFIG_H
#define MBEDTLS_CONFIG_H
/* System support */
//#define MBEDTLS_HAVE_TIME /* Optionally used in Hello messages */
/* Other MBEDTLS_HAVE_XXX flags irrelevant for this configuration */
//#define MBEDTLS_NO_PLATFORM_ENTROPY
//#define MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
//#define MBEDTLS_TEST_NULL_ENTROPY
//#define MBEDTLS_HAVEGE_C
//#define MBEDTLS_DEBUG_C
#define MBEDTLS_PLATFORM_C
#define MBEDTLS_PLATFORM_MEMORY
#define MBEDTLS_TIMING_C
/* mbed TLS feature support */
#define MBEDTLS_CIPHER_MODE_CBC
#define MBEDTLS_PKCS1_V15
#define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
//#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
#define MBEDTLS_SSL_PROTO_TLS1_2
#define MBEDTLS_SSL_PROTO_DTLS /*alicoap dtls need, psk can close */
#define MBEDTLS_SSL_DTLS_HELLO_VERIFY /*alicoap dtls need, psk can close */
// /* AES */
// #define MBEDTLS_AES_ALT
// #define CONFIG_TEE_AES
// /* SHA256 */
// #define MBEDTLS_SHA256_ALT
// #define CONFIG_TEE_SHA256
// /* RSA */
// #define MBEDTLS_RSA_ALT
// #define CONFIG_TEE_RSA
#ifdef MBEDTLS_RSA_ALT
#define MBEDTLS_RSA_NO_CRT
#endif
/* mbed TLS modules */
#define MBEDTLS_AES_C
#define MBEDTLS_ASN1_PARSE_C
#define MBEDTLS_BIGNUM_C
// #define MBEDTLS_CCM_C
// #define MBEDTLS_GCM_C
#define MBEDTLS_CIPHER_C
//#define MBEDTLS_CTR_DRBG_C
//#define MBEDTLS_ENTROPY_C
#define MBEDTLS_MD_C
#define MBEDTLS_MD5_C
//#define MBEDTLS_MD5_WRAP
//#define MBEDTLS_NET_C
#define MBEDTLS_OID_C
#define MBEDTLS_SHA1_C
#define MBEDTLS_SHA256_C
//#define MBEDTLS_SHA512_C
#define MBEDTLS_PK_C
#define MBEDTLS_PK_PARSE_C
#define MBEDTLS_RSA_C
#define MBEDTLS_SSL_CLI_C
#define MBEDTLS_SSL_COOKIE_C /*alicoap dtls need, psk can close */
//#define MBEDTLS_SSL_SRV_C
#define MBEDTLS_SSL_TLS_C
#define MBEDTLS_X509_CRT_PARSE_C
#define MBEDTLS_X509_USE_C
#define MBEDTLS_BASE64_C
#define MBEDTLS_CERTS_C
#define MBEDTLS_PEM_PARSE_C
//#define MBEDTLS_ENTROPY_SHA512_ACCUMULATOR
/* Save RAM at the expense of ROM */
// #define MBEDTLS_AES_ROM_TABLES
/* Save some RAM by adjusting to your exact needs */
#define MBEDTLS_PSK_MAX_LEN 16 /* 128-bits keys are generally enough */
/*
* You should adjust this to the exact number of sources you're using: default
* is the "platform_entropy_poll" source, but you may want to add other ones
* Minimum is 2 for the entropy test suite.
*/
//#define MBEDTLS_ENTROPY_MAX_SOURCES 128
/*
* Use only CCM_8 ciphersuites, and
* save ROM and a few bytes of RAM by specifying our own ciphersuite list
*/
#define MBEDTLS_SSL_CIPHERSUITES \
MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA
/*
* Save RAM at the expense of interoperability: do this only if you control
* both ends of the connection! (See comments in "mbedtls/ssl.h".)
* The optimal size here depends on the typical size of records.
*/
//#define MBEDTLS_SSL_MAX_CONTENT_LEN (1 * 1024) /*alicoap 1K*/
#if !defined (MBEDTLS_DEBUG_C)
/*reduce readonly date size*/
#define CK_REMOVE_UNUSED_FUNCTION_AND_DATA
#endif
/* save cert in flash, save about 3.7K ram use*/
//#define CK_SAVE_MEM_L2
#ifdef CK_SAVE_MEM_L2
#error "comment this line and set CK_FLASH_BLOCK_START,CK_FLAHS_BLOCK_NUM"
/* CK_FLASH_BLOCK_START flash start address where certificates in*/
/* CK_FLAHS_BLOCK_NUM flash size, this MUSH larger than all certificates total size*/
/*examples for hobbit, 0x10030000 ~ 0x10031400 */
//#define CK_FLASH_BLOCK_START (384)
//#define CK_FLAHS_BLOCK_NUM 10
/*examples for phobos, 0x1002fc00 ~ 0x1003100*/
//#define CK_FLASH_BLOCK_START (382)
//#define CK_FLAHS_BLOCK_NUM 10
#define ck_alloc(a) ck_cert_flash_alloc(a)
#define ck_memcpy(d,s,l) ck_cert_flash_copy((uint32_t)d,s,l)
#endif
/*disable rsa private key check,save about 5k rom use*/
#define CK_SAVE_MEM_L3
/* reduce ram use in certificate handshake message*/
#ifdef MBEDTLS_SSL_PROTO_DTLS
#define CK_SAVE_MEM_L4 /*alicoap can open*/
#endif
#include "mbedtls/check_config.h"
#endif /* MBEDTLS_CONFIG_H */
| YifuLiu/AliOS-Things | components/mbedtls/platform/include/config_yoc_alicoap.h | C | apache-2.0 | 5,092 |
/*
* Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
* Distinguishing features:
* - no bignum, no PK, no X509
* - fully modern and secure (provided the pre-shared keys have high entropy)
* - very low record overhead with CCM-8
* - optimized for low RAM usage
*
* See README.txt for usage instructions.
*/
#ifndef MBEDTLS_CONFIG_H
#define MBEDTLS_CONFIG_H
/* System support */
//#define MBEDTLS_HAVE_TIME /* Optionally used in Hello messages */
/* Other MBEDTLS_HAVE_XXX flags irrelevant for this configuration */
//#define MBEDTLS_NO_PLATFORM_ENTROPY
//#define MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
//#define MBEDTLS_TEST_NULL_ENTROPY
//#define MBEDTLS_HAVEGE_C
//#define MBEDTLS_DEBUG_C
#define MBEDTLS_PLATFORM_C
#define MBEDTLS_PLATFORM_MEMORY
#define MBEDTLS_TIMING_C
/* mbed TLS feature support */
#define MBEDTLS_CIPHER_MODE_CBC
#define MBEDTLS_PKCS1_V15
#define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
//#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
#define MBEDTLS_SSL_PROTO_TLS1_2
//#define MBEDTLS_SSL_PROTO_DTLS /*alicoap dtls need, psk can close */
//#define MBEDTLS_SSL_DTLS_HELLO_VERIFY /*alicoap dtls need, psk can close */
// /* AES */
// #define MBEDTLS_AES_ALT
// #define CONFIG_TEE_AES
// /* SHA256 */
// #define MBEDTLS_SHA256_ALT
// #define CONFIG_TEE_SHA256
// /* RSA */
// #define MBEDTLS_RSA_ALT
// #define CONFIG_TEE_RSA
#ifdef MBEDTLS_RSA_ALT
#define MBEDTLS_RSA_NO_CRT
#endif
/* mbed TLS modules */
#define MBEDTLS_AES_C
#define MBEDTLS_ASN1_PARSE_C
#define MBEDTLS_BIGNUM_C
// #define MBEDTLS_CCM_C
// #define MBEDTLS_GCM_C
#define MBEDTLS_CIPHER_C
//#define MBEDTLS_CTR_DRBG_C
//#define MBEDTLS_ENTROPY_C
#define MBEDTLS_MD_C
#define MBEDTLS_MD5_C
//#define MBEDTLS_MD5_WRAP
//#define MBEDTLS_NET_C
#define MBEDTLS_OID_C
#define MBEDTLS_SHA1_C
#define MBEDTLS_SHA256_C
//#define MBEDTLS_SHA512_C
#define MBEDTLS_PK_C
#define MBEDTLS_PK_PARSE_C
#define MBEDTLS_RSA_C
#define MBEDTLS_SSL_CLI_C
//#define MBEDTLS_SSL_COOKIE_C /*alicoap dtls need, psk can close */
//#define MBEDTLS_SSL_SRV_C
#define MBEDTLS_SSL_TLS_C
#define MBEDTLS_X509_CRT_PARSE_C
#define MBEDTLS_X509_USE_C
#define MBEDTLS_BASE64_C
#define MBEDTLS_CERTS_C
#define MBEDTLS_PEM_PARSE_C
//#define MBEDTLS_ENTROPY_SHA512_ACCUMULATOR
/* Save RAM at the expense of ROM */
// #define MBEDTLS_AES_ROM_TABLES
/* Save some RAM by adjusting to your exact needs */
#define MBEDTLS_PSK_MAX_LEN 16 /* 128-bits keys are generally enough */
/*
* You should adjust this to the exact number of sources you're using: default
* is the "platform_entropy_poll" source, but you may want to add other ones
* Minimum is 2 for the entropy test suite.
*/
//#define MBEDTLS_ENTROPY_MAX_SOURCES 128
/*
* Use only CCM_8 ciphersuites, and
* save ROM and a few bytes of RAM by specifying our own ciphersuite list
*/
#define MBEDTLS_SSL_CIPHERSUITES \
MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA
/*
* Save RAM at the expense of interoperability: do this only if you control
* both ends of the connection! (See comments in "mbedtls/ssl.h".)
* The optimal size here depends on the typical size of records.
*/
//#define MBEDTLS_SSL_MAX_CONTENT_LEN (1 * 1024) /*alicoap 1K*/
#if !defined (MBEDTLS_DEBUG_C)
/*reduce readonly date size*/
#define CK_REMOVE_UNUSED_FUNCTION_AND_DATA
#endif
/* save cert in flash, save about 3.7K ram use*/
//#define CK_SAVE_MEM_L2
#ifdef CK_SAVE_MEM_L2
#error "comment this line and set CK_FLASH_BLOCK_START,CK_FLAHS_BLOCK_NUM"
/* CK_FLASH_BLOCK_START flash start address where certificates in*/
/* CK_FLAHS_BLOCK_NUM flash size, this MUSH larger than all certificates total size*/
/*examples for hobbit, 0x10030000 ~ 0x10031400 */
//#define CK_FLASH_BLOCK_START (384)
//#define CK_FLAHS_BLOCK_NUM 10
/*examples for phobos, 0x1002fc00 ~ 0x1003100*/
//#define CK_FLASH_BLOCK_START (382)
//#define CK_FLAHS_BLOCK_NUM 10
#define ck_alloc(a) ck_cert_flash_alloc(a)
#define ck_memcpy(d,s,l) ck_cert_flash_copy((uint32_t)d,s,l)
#endif
/*disable rsa private key check,save about 5k rom use*/
#define CK_SAVE_MEM_L3
/* reduce ram use in certificate handshake message*/
#ifdef MBEDTLS_SSL_PROTO_DTLS
#define CK_SAVE_MEM_L4 /*alicoap can open*/
#endif
#include "mbedtls/check_config.h"
#endif /* MBEDTLS_CONFIG_H */
| YifuLiu/AliOS-Things | components/mbedtls/platform/include/config_yoc_aliiot.h | C | apache-2.0 | 5,098 |
/*
* Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
* Distinguishing features:
* - no bignum, no PK, no X509
* - fully modern and secure (provided the pre-shared keys have high entropy)
* - very low record overhead with CCM-8
* - optimized for low RAM usage
*
* See README.txt for usage instructions.
*/
#ifndef MBEDTLS_CONFIG_H
#define MBEDTLS_CONFIG_H
/* System support */
//#define MBEDTLS_HAVE_TIME /* Optionally used in Hello messages */
/* Other MBEDTLS_HAVE_XXX flags irrelevant for this configuration */
//#define MBEDTLS_NO_PLATFORM_ENTROPY
//#define MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
//#define MBEDTLS_TEST_NULL_ENTROPY
//#define MBEDTLS_HAVEGE_C
// #define MBEDTLS_DEBUG_C
#define MBEDTLS_PLATFORM_C
#define MBEDTLS_PLATFORM_MEMORY
#define MBEDTLS_TIMING_C
/* mbed TLS feature support */
#define MBEDTLS_CIPHER_MODE_CBC
#define MBEDTLS_CIPHER_MODE_CFB
#define MBEDTLS_PKCS1_V15
#define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
//#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
#define MBEDTLS_SSL_PROTO_TLS1_2
//#define MBEDTLS_SSL_PROTO_DTLS /*alicoap*/
//#define MBEDTLS_SSL_DTLS_HELLO_VERIFY /*alicoap*/
// #define MBEDTLS_SHA1_ALT // FIXME: because of sha1 and sha256 cannot coexist
// /* AES */
// #define MBEDTLS_AES_ALT
// #define CONFIG_TEE_AES
// /* SHA256 */
// #define MBEDTLS_SHA256_ALT
// #define CONFIG_TEE_SHA256
// /* RSA */
// #define MBEDTLS_RSA_ALT
// #define CONFIG_TEE_RSA
#ifdef MBEDTLS_RSA_ALT
#define MBEDTLS_RSA_NO_CRT
#endif
/* mbed TLS modules */
#define MBEDTLS_AES_C
#define MBEDTLS_ASN1_PARSE_C
#define MBEDTLS_BIGNUM_C
// #define MBEDTLS_CCM_C
// #define MBEDTLS_GCM_C
#define MBEDTLS_CIPHER_C
//#define MBEDTLS_CTR_DRBG_C
//#define MBEDTLS_ENTROPY_C
#define MBEDTLS_MD_C
//#define MBEDTLS_MD5_C
//#define MBEDTLS_MD5_WRAP
//#define MBEDTLS_NET_C
#define MBEDTLS_OID_C
#define MBEDTLS_SHA1_C
#define MBEDTLS_SHA256_C
//#define MBEDTLS_SHA512_C
#define MBEDTLS_PK_C
#define MBEDTLS_PK_PARSE_C
#define MBEDTLS_RSA_C
#define MBEDTLS_SSL_CLI_C
//#define MBEDTLS_SSL_COOKIE_C /*alicoap*/
#define MBEDTLS_SSL_TLS_C
#define MBEDTLS_X509_CRT_PARSE_C
#define MBEDTLS_X509_USE_C
#define MBEDTLS_BASE64_C
#define MBEDTLS_CERTS_C
#define MBEDTLS_PEM_PARSE_C /*alimqtt*/
//#define MBEDTLS_ENTROPY_SHA512_ACCUMULATOR
/* Save RAM at the expense of ROM */
// #define MBEDTLS_AES_ROM_TABLES
/* Save some RAM by adjusting to your exact needs */
#define MBEDTLS_PSK_MAX_LEN 16 /* 128-bits keys are generally enough */
/*
* You should adjust this to the exact number of sources you're using: default
* is the "platform_entropy_poll" source, but you may want to add other ones
* Minimum is 2 for the entropy test suite.
*/
//#define MBEDTLS_ENTROPY_MAX_SOURCES 128
/*
* Use only CCM_8 ciphersuites, and
* save ROM and a few bytes of RAM by specifying our own ciphersuite list
*/
#define MBEDTLS_SSL_CIPHERSUITES \
MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA
/*
* Save RAM at the expense of interoperability: do this only if you control
* both ends of the connection! (See comments in "mbedtls/ssl.h".)
* The optimal size here depends on the typical size of records.
*/
//#define MBEDTLS_SSL_MAX_CONTENT_LEN (4 * 1024) /*alicoap 1K*/
#if !defined (MBEDTLS_DEBUG_C)
/*reduce readonly date size*/
#define CK_REMOVE_UNUSED_FUNCTION_AND_DATA
#endif
/* save cert in flash, save about 3.7K ram use*/
//#define CK_SAVE_MEM_L2
#ifdef CK_SAVE_MEM_L2
#error "comment this line and set CK_FLASH_BLOCK_START,CK_FLAHS_BLOCK_NUM"
/* CK_FLASH_BLOCK_START flash start address where certificates in*/
/* CK_FLAHS_BLOCK_NUM flash size, this MUSH larger than all certificates total size*/
/*examples for hobbit, 0x10030000 ~ 0x10031400 */
//#define CK_FLASH_BLOCK_START (384)
//#define CK_FLAHS_BLOCK_NUM 10
/*examples for phobos, 0x1002fc00 ~ 0x1003100*/
//#define CK_FLASH_BLOCK_START (382)
//#define CK_FLAHS_BLOCK_NUM 10
#define ck_alloc(a) ck_cert_flash_alloc(a)
#define ck_memcpy(d,s,l) ck_cert_flash_copy((uint32_t)d,s,l)
#endif
/*disable rsa private key check,save about 5k rom use*/
#define CK_SAVE_MEM_L3
/* reduce ram use in certificate handshake message*/
//#define CK_SAVE_MEM_L4 /*alicoap can open*/
#include "mbedtls/check_config.h"
#endif /* MBEDTLS_CONFIG_H */
| YifuLiu/AliOS-Things | components/mbedtls/platform/include/config_yoc_alimqtt.h | C | apache-2.0 | 5,090 |
/*
* Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
* Distinguishing features:
* - no bignum, no PK, no X509
* - fully modern and secure (provided the pre-shared keys have high entropy)
* - very low record overhead with CCM-8
* - optimized for low RAM usage
*
* See README.txt for usage instructions.
*/
#ifndef MBEDTLS_CONFIG_H
#define MBEDTLS_CONFIG_H
/* System support */
//#define MBEDTLS_HAVE_TIME /* Optionally used in Hello messages */
/* Other MBEDTLS_HAVE_XXX flags irrelevant for this configuration */
//#define MBEDTLS_NO_PLATFORM_ENTROPY
//#define MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
//#define MBEDTLS_TEST_NULL_ENTROPY
//#define MBEDTLS_HAVEGE_C
//#define MBEDTLS_DEBUG_C
//#define MBEDTLS_PLATFORM_C
//#define MBEDTLS_PLATFORM_MEMORY
//#define MBEDTLS_TIMING_C
/* mbed TLS feature support */
//#define MBEDTLS_CIPHER_MODE_CBC
//#define MBEDTLS_PKCS1_V15
//#define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
//#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
//#define MBEDTLS_SSL_PROTO_TLS1_2
//#define MBEDTLS_SSL_PROTO_DTLS
//#define MBEDTLS_SSL_DTLS_HELLO_VERIFY
/* mbed TLS modules */
//#define MBEDTLS_AES_C
//#define MBEDTLS_AES_ALT
//#define MBEDTLS_ASN1_PARSE_C
//#define MBEDTLS_BIGNUM_C
// #define MBEDTLS_CCM_C
// #define MBEDTLS_GCM_C
//#define MBEDTLS_CIPHER_C
//#define MBEDTLS_CTR_DRBG_C
//#define MBEDTLS_ENTROPY_C
//#define MBEDTLS_MD_C
#define MBEDTLS_MD5_C
//#define MBEDTLS_NET_C
//#define MBEDTLS_OID_C
#define MBEDTLS_SHA1_C
//#define MBEDTLS_SHA1_ALT
#define MBEDTLS_SHA256_C
//#define MBEDTLS_SHA256_ALT
//#define MBEDTLS_SHA512_C
//#define MBEDTLS_PK_C
//#define MBEDTLS_PK_PARSE_C
//#define MBEDTLS_RSA_C
//#define MBEDTLS_RSA_ALT
//#define MBEDTLS_SSL_CLI_C
//#define MBEDTLS_SSL_COOKIE_C
//#define MBEDTLS_SSL_SRV_C
//#define MBEDTLS_SSL_TLS_C
//#define MBEDTLS_X509_CRT_PARSE_C
//#define MBEDTLS_X509_USE_C
#define MBEDTLS_BASE64_C
//#define MBEDTLS_CERTS_C
//#define MBEDTLS_PEM_PARSE_C
//#define MBEDTLS_ENTROPY_SHA512_ACCUMULATOR
/* Save RAM at the expense of ROM */
// #define MBEDTLS_AES_ROM_TABLES
/* Save some RAM by adjusting to your exact needs */
//#define MBEDTLS_PSK_MAX_LEN 16 /* 128-bits keys are generally enough */
/*
* You should adjust this to the exact number of sources you're using: default
* is the "platform_entropy_poll" source, but you may want to add other ones
* Minimum is 2 for the entropy test suite.
*/
//#define MBEDTLS_ENTROPY_MAX_SOURCES 128
/*
* Use only CCM_8 ciphersuites, and
* save ROM and a few bytes of RAM by specifying our own ciphersuite list
*/
/*
#define MBEDTLS_SSL_CIPHERSUITES \
MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA
*/
/*
* Save RAM at the expense of interoperability: do this only if you control
* both ends of the connection! (See comments in "mbedtls/ssl.h".)
* The optimal size here depends on the typical size of records.
*/
//#define MBEDTLS_SSL_MAX_CONTENT_LEN (1 * 1024)
//#if !defined (MBEDTLS_DEBUG_C)
/*reduce readonly date size*/
//#define CK_REMOVE_UNUSED_FUNCTION_AND_DATA
//#endif
/* save cert in flash, save about 3.7K ram use*/
//#define CK_SAVE_MEM_L2
//#ifdef CK_SAVE_MEM_L2
//
//#error "comment this line and set CK_FLASH_BLOCK_START,CK_FLAHS_BLOCK_NUM"
/* CK_FLASH_BLOCK_START flash start address where certificates in*/
/* CK_FLAHS_BLOCK_NUM flash size, this MUSH larger than all certificates total size*/
/*examples for hobbit, 0x10030000 ~ 0x10031400 */
//#define CK_FLASH_BLOCK_START (384)
//#define CK_FLAHS_BLOCK_NUM 10
/*examples for phobos, 0x1002fc00 ~ 0x1003100*/
//#define CK_FLASH_BLOCK_START (382)
//#define CK_FLAHS_BLOCK_NUM 10
//#define ck_alloc(a) ck_cert_flash_alloc(a)
//#define ck_memcpy(d,s,l) ck_cert_flash_copy((uint32_t)d,s,l)
//
//#endif
/*disable rsa private key check,save about 5k rom use*/
//#define CK_SAVE_MEM_L3
/* reduce ram use in certificate handshake message*/
//#define CK_SAVE_MEM_L4
#include "mbedtls/check_config.h"
#endif /* MBEDTLS_CONFIG_H */
| YifuLiu/AliOS-Things | components/mbedtls/platform/include/config_yoc_base.h | C | apache-2.0 | 4,786 |
/*
* Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
* Distinguishing features:
* - no bignum, no PK, no X509
* - fully modern and secure (provided the pre-shared keys have high entropy)
* - very low record overhead with CCM-8
* - optimized for low RAM usage
*
* See README.txt for usage instructions.
*/
#ifndef MBEDTLS_CONFIG_H
#define MBEDTLS_CONFIG_H
/* System support */
//#define MBEDTLS_HAVE_TIME /* Optionally used in Hello messages */
/* Other MBEDTLS_HAVE_XXX flags irrelevant for this configuration */
//#define MBEDTLS_NO_PLATFORM_ENTROPY
//#define MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
//#define MBEDTLS_TEST_NULL_ENTROPY
//#define MBEDTLS_HAVEGE_C
//#define MBEDTLS_DEBUG_C
#define MBEDTLS_PLATFORM_C
#define MBEDTLS_PLATFORM_MEMORY
// #define MBEDTLS_TIMING_C
/* mbed TLS feature support */
#define MBEDTLS_CIPHER_MODE_CBC
//#define MBEDTLS_CIPHER_MODE_CTR
#define MBEDTLS_CIPHER_MODE_CFB
#define MBEDTLS_PKCS1_V15
#define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
//#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
#define MBEDTLS_SSL_PROTO_TLS1_2
//#define MBEDTLS_SSL_PROTO_DTLS /*alicoap dtls need, psk can close */
//#define MBEDTLS_SSL_DTLS_HELLO_VERIFY /*alicoap dtls need, psk can close */
/* AES */
// #define MBEDTLS_AES_ALT
/* SHA256 */
// #define MBEDTLS_SHA256_ALT
/* RSA */
// #define MBEDTLS_RSA_ALT
#ifdef MBEDTLS_RSA_ALT
#define MBEDTLS_RSA_NO_CRT
#endif
/* mbed TLS modules */
#define MBEDTLS_AES_C
#define MBEDTLS_ASN1_PARSE_C
#define MBEDTLS_BIGNUM_C
// #define MBEDTLS_CCM_C
// #define MBEDTLS_GCM_C
#define MBEDTLS_CIPHER_C
#define MBEDTLS_CIPHER_MODE_CTR
#define MBEDTLS_CTR_DRBG_C
#define MBEDTLS_ENTROPY_C
#define MBEDTLS_MD_C
#define MBEDTLS_MD5_C
//#define MBEDTLS_MD5_WRAP
//#define MBEDTLS_NET_C
#define MBEDTLS_NET_C_ALT
#define MBEDTLS_OID_C
#define MBEDTLS_SHA1_C
#define MBEDTLS_SHA256_C
//#define MBEDTLS_SHA512_C
#define MBEDTLS_PK_C
#define MBEDTLS_PK_PARSE_C
#define MBEDTLS_RSA_C
#define MBEDTLS_SSL_CLI_C
//#define MBEDTLS_SSL_COOKIE_C /*alicoap dtls need, psk can close */
//#define MBEDTLS_SSL_SRV_C
#define MBEDTLS_SSL_TLS_C
#define MBEDTLS_X509_CRT_PARSE_C
#define MBEDTLS_X509_USE_C
#define MBEDTLS_BASE64_C
#define MBEDTLS_CERTS_C
#define MBEDTLS_PEM_PARSE_C
//#define MBEDTLS_ENTROPY_SHA512_ACCUMULATOR
#define MBEDTLS_SSL_SERVER_NAME_INDICATION
/* Save RAM at the expense of ROM */
// #define MBEDTLS_AES_ROM_TABLES
/* Save some RAM by adjusting to your exact needs */
#define MBEDTLS_PSK_MAX_LEN 16 /* 128-bits keys are generally enough */
/*
* You should adjust this to the exact number of sources you're using: default
* is the "platform_entropy_poll" source, but you may want to add other ones
* Minimum is 2 for the entropy test suite.
*/
//#define MBEDTLS_ENTROPY_MAX_SOURCES 128
/*
* Use only CCM_8 ciphersuites, and
* save ROM and a few bytes of RAM by specifying our own ciphersuite list
*/
#define MBEDTLS_SSL_CIPHERSUITES \
MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA
/*
* Save RAM at the expense of interoperability: do this only if you control
* both ends of the connection! (See comments in "mbedtls/ssl.h".)
* The optimal size here depends on the typical size of records.
*/
//#define MBEDTLS_SSL_MAX_CONTENT_LEN (1 * 1024) /*alicoap 1K*/
#if !defined (MBEDTLS_DEBUG_C)
/*reduce readonly date size*/
#define CK_REMOVE_UNUSED_FUNCTION_AND_DATA
#endif
/* save cert in flash, save about 3.7K ram use*/
//#define CK_SAVE_MEM_L2
#ifdef CK_SAVE_MEM_L2
#error "comment this line and set CK_FLASH_BLOCK_START,CK_FLAHS_BLOCK_NUM"
/* CK_FLASH_BLOCK_START flash start address where certificates in*/
/* CK_FLAHS_BLOCK_NUM flash size, this MUSH larger than all certificates total size*/
/*examples for hobbit, 0x10030000 ~ 0x10031400 */
//#define CK_FLASH_BLOCK_START (384)
//#define CK_FLAHS_BLOCK_NUM 10
/*examples for phobos, 0x1002fc00 ~ 0x1003100*/
//#define CK_FLASH_BLOCK_START (382)
//#define CK_FLAHS_BLOCK_NUM 10
#define ck_alloc(a) ck_cert_flash_alloc(a)
#define ck_memcpy(d,s,l) ck_cert_flash_copy((uint32_t)d,s,l)
#endif
/*disable rsa private key check,save about 5k rom use*/
//#define CK_SAVE_MEM_L3
/* reduce ram use in certificate handshake message*/
#ifdef MBEDTLS_SSL_PROTO_DTLS
#define CK_SAVE_MEM_L4 /*alicoap can open*/
#endif
#include "mbedtls/check_config.h"
#endif /* MBEDTLS_CONFIG_H */
| YifuLiu/AliOS-Things | components/mbedtls/platform/include/config_yoc_tls.h | C | apache-2.0 | 5,178 |
#ifndef _PLAT_MBEDTLS_CONFIG_H_
#define _PLAT_MBEDTLS_CONFIG_H_
#if defined(CONFIG_CLOUDIO_ALICOAP) && defined(CONFIG_CLOUDIO_ALIMQTT)
#include "config_yoc_aliiot.h"
#elif defined(CONFIG_CLOUDIO_ALICOAP)
#include "config_yoc_alicoap.h"
#elif defined(CONFIG_CLOUDIO_ALIMQTT)
#include "config_yoc_alimqtt.h"
#elif defined(CONFIG_USING_YOC_TLS)
#include "config_yoc_tls.h"
#elif defined(CONFIG_USING_YOC_BASE)
#include "config_yoc_base.h"
#else
#include "config_aos_base.h"
#endif
#endif /* _PLAT_MBEDTLS_CONFIG_H_ */
| YifuLiu/AliOS-Things | components/mbedtls/platform/include/platform_config.h | C | apache-2.0 | 541 |
/* ****************************************************************************
* *
* C-Sky Microsystems Confidential *
* ------------------------------- *
* This file and all its contents are properties of C-Sky Microsystems. The *
* information contained herein is confidential and proprietary and is not *
* to be disclosed outside of C-Sky Microsystems except under a *
* Non-Disclosured Agreement (NDA). *
* *
****************************************************************************/
#include <stdint.h>
#include <stddef.h>
#include <string.h>
#include "mbedtls/aes.h"
#include "aos/kernel.h"
#include "mbedtls/platform_util.h"
#if defined(CONFIG_TEE_AES)
#include "drv/tee.h"
#endif
#if defined(MBEDTLS_AES_ALT)
/* Parameter validation macros based on platform_util.h */
#define AES_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_AES_BAD_INPUT_DATA )
#define AES_VALIDATE( cond ) \
MBEDTLS_INTERNAL_VALIDATE( cond )
static void mbedtls_zeroize(void *v, size_t n)
{
volatile unsigned char *p = (unsigned char *)v;
while (n--) {
*p++ = 0;
}
}
void mbedtls_aes_init(mbedtls_aes_context *ctx)
{
mbedtls_zeroize(ctx, sizeof(mbedtls_aes_context));
sc_aes_init(&ctx->sc_ctx, 0);
}
void mbedtls_aes_free(mbedtls_aes_context *ctx)
{
if (ctx == NULL) {
return;
}
sc_aes_uninit(&ctx->sc_ctx);
mbedtls_zeroize(ctx, sizeof(mbedtls_aes_context));
}
int mbedtls_aes_setkey_enc(mbedtls_aes_context *ctx, const unsigned char *key, unsigned int keybits)
{
sc_aes_key_bits_t bits = SC_AES_KEY_LEN_BITS_128;
if (keybits == 128) {
bits = SC_AES_KEY_LEN_BITS_128;
} else if (keybits == 192) {
bits = SC_AES_KEY_LEN_BITS_192;
} else if (keybits == 256) {
bits = SC_AES_KEY_LEN_BITS_256;
} else {
return -1;
}
#if defined(CONFIG_TEE_AES)
memcpy(ctx->key, key, keybits / 8);
ctx->key_len = keybits / 8;
#endif
sc_aes_set_encrypt_key(&ctx->sc_ctx, (void *)key, bits);
return (0);
}
/*
* AES key schedule (decryption)
*/
int mbedtls_aes_setkey_dec(mbedtls_aes_context *ctx, const unsigned char *key, unsigned int keybits)
{
sc_aes_key_bits_t bits = SC_AES_KEY_LEN_BITS_128;
if (keybits == 128) {
bits = SC_AES_KEY_LEN_BITS_128;
} else if (keybits == 192) {
bits = SC_AES_KEY_LEN_BITS_192;
} else if (keybits == 256) {
bits = SC_AES_KEY_LEN_BITS_256;
} else {
return -1;
}
#if defined(CONFIG_TEE_AES)
return mbedtls_aes_setkey_enc(ctx, key, keybits);
#endif
sc_aes_set_decrypt_key(&ctx->sc_ctx, (void *)key, bits);
return 0;
}
/*
* AES-ECB block encryption/decryption
*/
int mbedtls_aes_crypt_ecb(mbedtls_aes_context *ctx, int mode, const unsigned char input[16],
unsigned char output[16])
{
if (mode == MBEDTLS_AES_ENCRYPT) {
sc_aes_ecb_encrypt(&ctx->sc_ctx, (void *)input, output, 16);
} else if (mode == MBEDTLS_AES_DECRYPT) {
sc_aes_ecb_decrypt(&ctx->sc_ctx, (void *)input, output, 16);
}
#if defined(CONFIG_TEE_AES)
if (mode == MBEDTLS_AES_ENCRYPT) {
csi_tee_aes_encrypt_ecb(input, 16, ctx->key, ctx->key_len, output);
} else if (mode == MBEDTLS_AES_DECRYPT) {
csi_tee_aes_decrypt_ecb(input, 16, ctx->key, ctx->key_len, output);
}
#endif
return 0;
}
/*
* AES-CBC buffer encryption/decryption
*/
int mbedtls_aes_crypt_cbc(mbedtls_aes_context *ctx, int mode, size_t length, unsigned char iv[16],
const unsigned char *input, unsigned char *output)
{
int i;
unsigned char temp[16];
if (mode == MBEDTLS_AES_DECRYPT) {
while (length > 0) {
memcpy(temp, input, 16);
aos_kernel_sched_suspend();
mbedtls_aes_crypt_ecb(ctx, mode, input, output);
aos_kernel_sched_resume();
for (i = 0; i < 16; i++)
output[i] = (unsigned char)(output[i] ^ iv[i]);
memcpy(iv, temp, 16);
input += 16;
output += 16;
length -= 16;
}
} else {
while (length > 0) {
for (i = 0; i < 16; i++)
output[i] = (unsigned char)(input[i] ^ iv[i]);
mbedtls_aes_crypt_ecb(ctx, mode, output, output);
memcpy(iv, output, 16);
input += 16;
output += 16;
length -= 16;
}
}
return (0);
}
#if defined(MBEDTLS_CIPHER_MODE_CTR)
/*
* AES-CTR buffer encryption/decryption
*/
int mbedtls_aes_crypt_ctr(mbedtls_aes_context *ctx, size_t length, size_t *nc_off,
unsigned char nonce_counter[16], unsigned char stream_block[16],
const unsigned char *input, unsigned char *output)
{
int c, i;
size_t n = *nc_off;
while (length--) {
if (n == 0) {
mbedtls_aes_crypt_ecb(ctx, MBEDTLS_AES_ENCRYPT, nonce_counter, stream_block);
for (i = 16; i > 0; i--)
if (++nonce_counter[i - 1] != 0)
break;
}
c = *input++;
*output++ = (unsigned char)(c ^ stream_block[n]);
n = (n + 1) & 0x0F;
}
*nc_off = n;
return (0);
}
#endif /* MBEDTLS_CIPHER_MODE_CTR */
#if defined(MBEDTLS_CIPHER_MODE_CFB)
/*
* AES-CFB128 buffer encryption/decryption
*/
int mbedtls_aes_crypt_cfb128( mbedtls_aes_context *ctx,
int mode,
size_t length,
size_t *iv_off,
unsigned char iv[16],
const unsigned char *input,
unsigned char *output )
{
int c;
size_t n;
AES_VALIDATE_RET( ctx != NULL );
AES_VALIDATE_RET( mode == MBEDTLS_AES_ENCRYPT ||
mode == MBEDTLS_AES_DECRYPT );
AES_VALIDATE_RET( iv_off != NULL );
AES_VALIDATE_RET( iv != NULL );
AES_VALIDATE_RET( input != NULL );
AES_VALIDATE_RET( output != NULL );
n = *iv_off;
if( n > 15 )
return( MBEDTLS_ERR_AES_BAD_INPUT_DATA );
if( mode == MBEDTLS_AES_DECRYPT )
{
while( length-- )
{
if( n == 0 )
mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, iv, iv );
c = *input++;
*output++ = (unsigned char)( c ^ iv[n] );
iv[n] = (unsigned char) c;
n = ( n + 1 ) & 0x0F;
}
}
else
{
while( length-- )
{
if( n == 0 )
mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, iv, iv );
iv[n] = *output++ = (unsigned char)( iv[n] ^ *input++ );
n = ( n + 1 ) & 0x0F;
}
}
*iv_off = n;
return( 0 );
}
/*
* AES-CFB8 buffer encryption/decryption
*/
int mbedtls_aes_crypt_cfb8( mbedtls_aes_context *ctx,
int mode,
size_t length,
unsigned char iv[16],
const unsigned char *input,
unsigned char *output )
{
unsigned char c;
unsigned char ov[17];
AES_VALIDATE_RET( ctx != NULL );
AES_VALIDATE_RET( mode == MBEDTLS_AES_ENCRYPT ||
mode == MBEDTLS_AES_DECRYPT );
AES_VALIDATE_RET( iv != NULL );
AES_VALIDATE_RET( input != NULL );
AES_VALIDATE_RET( output != NULL );
while( length-- )
{
memcpy( ov, iv, 16 );
mbedtls_aes_crypt_ecb( ctx, MBEDTLS_AES_ENCRYPT, iv, iv );
if( mode == MBEDTLS_AES_DECRYPT )
ov[16] = *input;
c = *output++ = (unsigned char)( iv[0] ^ *input++ );
if( mode == MBEDTLS_AES_ENCRYPT )
ov[16] = c;
memcpy( iv, ov + 1, 16 );
}
return( 0 );
}
#endif /* MBEDTLS_CIPHER_MODE_CFB */
#endif
| YifuLiu/AliOS-Things | components/mbedtls/platform/yoc/aes_alt.c | C | apache-2.0 | 8,155 |
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if !defined(MBEDTLS_CTR_DRBG_C)
#include "mbedtls/ctr_drbg.h"
#include <string.h>
#if defined(CONFIG_TEE_CA)
#include <drv/tee.h>
#endif
static void _tls_random(unsigned char *output, size_t output_len)
{
#if defined(CONFIG_TEE_CA)
csi_tee_rand_generate(output, output_len);
#else
int i;
uint32_t random;
int mod = output_len % 4;
int count = 0;
static uint32_t rnd = 0x12345;
for (i = 0; i < output_len / 4; i++) {
random = rnd * 0xFFFF777;
rnd = random;
output[count++] = (random >> 24) & 0xFF;
output[count++] = (random >> 16) & 0xFF;
output[count++] = (random >> 8) & 0xFF;
output[count++] = (random) & 0xFF;
}
random = rnd * 0xFFFF777;
rnd = random;
for (i = 0; i < mod; i++) {
output[i + count] = (random >> 8 * i) & 0xFF;
}
#endif
}
void mbedtls_ctr_drbg_init( mbedtls_ctr_drbg_context *ctx )
{
(void)ctx;
}
int mbedtls_ctr_drbg_random(void *p_rng, unsigned char *output, size_t output_len)
{
(void)p_rng;
_tls_random(output, output_len);
return 0;
}
void mbedtls_ctr_drbg_free( mbedtls_ctr_drbg_context *ctx )
{
(void)ctx;
}
#endif /* MBEDTLS_CTR_DRBG_C */ | YifuLiu/AliOS-Things | components/mbedtls/platform/yoc/ctr_drbg.c | C | apache-2.0 | 1,300 |
/* ****************************************************************************
* *
* C-Sky Microsystems Confidential *
* ------------------------------- *
* This file and all its contents are properties of C-Sky Microsystems. The *
* information contained herein is confidential and proprietary and is not *
* to be disclosed outside of C-Sky Microsystems except under a *
* Non-Disclosured Agreement (NDA). *
* *
****************************************************************************/
#ifndef MBEDTLS_AES_ALT_H
#define MBEDTLS_AES_ALT_H
#if defined(MBEDTLS_AES_ALT)
#include "sec_crypto_aes.h"
// Regular implementation
//
#ifdef __cplusplus
extern "C" {
#endif
#define SSE_AES_CTX_SIZE 36
/**
* \brief AES context structure
*
* \note buf is able to hold 32 extra bytes, which can be used:
* - for alignment purposes if VIA padlock is used, and/or
* - to simplify key expansion in the 256-bit case by
* generating an extra round key
*/
typedef struct {
#if defined(CONFIG_TEE_AES)
void *ctx;
unsigned char key[32];
unsigned int key_len;
#endif
sc_aes_t sc_ctx;
} mbedtls_aes_context;
/**
* \brief Initialize AES context
*
* \param ctx AES context to be initialized
*/
void mbedtls_aes_init(mbedtls_aes_context *ctx);
/**
* \brief Clear AES context
*
* \param ctx AES context to be cleared
*/
void mbedtls_aes_free(mbedtls_aes_context *ctx);
/**
* \brief AES key schedule (encryption)
*
* \param ctx AES context to be initialized
* \param key encryption key
* \param keybits must be 128, 192 or 256
*
* \return 0 if successful, or MBEDTLS_ERR_AES_INVALID_KEY_LENGTH
*/
int mbedtls_aes_setkey_enc(mbedtls_aes_context *ctx, const unsigned char *key,
unsigned int keybits);
/**
* \brief AES key schedule (decryption)
*
* \param ctx AES context to be initialized
* \param key decryption key
* \param keybits must be 128, 192 or 256
*
* \return 0 if successful, or MBEDTLS_ERR_AES_INVALID_KEY_LENGTH
*/
int mbedtls_aes_setkey_dec(mbedtls_aes_context *ctx, const unsigned char *key,
unsigned int keybits);
/**
* \brief AES-ECB block encryption/decryption
*
* \param ctx AES context
* \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT
* \param input 16-byte input block
* \param output 16-byte output block
*
* \return 0 if successful
*/
int mbedtls_aes_crypt_ecb(mbedtls_aes_context *ctx,
int mode,
const unsigned char input[16],
unsigned char output[16]);
#if defined(MBEDTLS_CIPHER_MODE_CBC)
/**
* \brief AES-CBC buffer encryption/decryption
* Length should be a multiple of the block
* size (16 bytes)
*
* \note Upon exit, the content of the IV is updated so that you can
* call the function same function again on the following
* block(s) of data and get the same result as if it was
* encrypted in one call. This allows a "streaming" usage.
* If on the other hand you need to retain the contents of the
* IV, you should either save it manually or use the cipher
* module instead.
*
* \param ctx AES context
* \param mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT
* \param length length of the input data
* \param iv initialization vector (updated after use)
* \param input buffer holding the input data
* \param output buffer holding the output data
*
* \return 0 if successful, or MBEDTLS_ERR_AES_INVALID_INPUT_LENGTH
*/
int mbedtls_aes_crypt_cbc(mbedtls_aes_context *ctx,
int mode,
size_t length,
unsigned char iv[16],
const unsigned char *input,
unsigned char *output);
#endif /* MBEDTLS_CIPHER_MODE_CBC */
#if defined(MBEDTLS_CIPHER_MODE_CTR)
/**
* \brief AES-CTR buffer encryption/decryption
*
* Warning: You have to keep the maximum use of your counter in mind!
*
* Note: Due to the nature of CTR you should use the same key schedule for
* both encryption and decryption. So a context initialized with
* mbedtls_aes_setkey_enc() for both MBEDTLS_AES_ENCRYPT and MBEDTLS_AES_DECRYPT.
*
* \param ctx AES context
* \param length The length of the data
* \param nc_off The offset in the current stream_block (for resuming
* within current cipher stream). The offset pointer to
* should be 0 at the start of a stream.
* \param nonce_counter The 128-bit nonce and counter.
* \param stream_block The saved stream-block for resuming. Is overwritten
* by the function.
* \param input The input data stream
* \param output The output data stream
*
* \return 0 if successful
*/
int mbedtls_aes_crypt_ctr( mbedtls_aes_context *ctx,
size_t length,
size_t *nc_off,
unsigned char nonce_counter[16],
unsigned char stream_block[16],
const unsigned char *input,
unsigned char *output );
#endif /* MBEDTLS_CIPHER_MODE_CTR */
#ifdef __cplusplus
}
#endif
#endif /* MBEDTLS_AES_ALT */
#endif /* aes_alt.h */
| YifuLiu/AliOS-Things | components/mbedtls/platform/yoc/include/aes_alt.h | C | apache-2.0 | 5,895 |
/**
* \file rsa.h
*
* \brief The RSA public-key cryptosystem
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#ifndef MBEDTLS_RSA_ALT_H
#define MBEDTLS_RSA_ALT_H
#ifdef __cplusplus
extern "C" {
#endif
#include "sec_crypto_rsa.h"
/**
* \brief RSA context structure
*/
typedef struct {
int ver; /*!< always 0 */
size_t len; /*!< size(N) in chars */
mbedtls_mpi N; /*!< public modulus */
mbedtls_mpi E; /*!< public exponent */
mbedtls_mpi D; /*!< private exponent */
mbedtls_mpi P; /*!< 1st prime factor */
mbedtls_mpi Q; /*!< 2nd prime factor */
mbedtls_mpi DP; /*!< D % (P - 1) */
mbedtls_mpi DQ; /*!< D % (Q - 1) */
mbedtls_mpi QP; /*!< 1 / (Q % P) */
int padding; /*!< MBEDTLS_RSA_PKCS_V15 for 1.5 padding and
MBEDTLS_RSA_PKCS_v21 for OAEP/PSS */
int hash_id; /*!< Hash identifier of mbedtls_md_type_t as
specified in the mbedtls_md.h header file
for the EME-OAEP and EMSA-PSS
encoding */
#if defined(CONFIG_TEE_RSA)
void *ctx;
#endif
sc_rsa_t sc_rsa;
sc_rsa_context_t sc_ctx;
} mbedtls_rsa_context;
/**
* \brief Initialize an RSA context
*
* Note: Set padding to MBEDTLS_RSA_PKCS_V21 for the RSAES-OAEP
* encryption scheme and the RSASSA-PSS signature scheme.
*
* \param ctx RSA context to be initialized
* \param padding MBEDTLS_RSA_PKCS_V15 or MBEDTLS_RSA_PKCS_V21
* \param hash_id MBEDTLS_RSA_PKCS_V21 hash identifier
*
* \note The hash_id parameter is actually ignored
* when using MBEDTLS_RSA_PKCS_V15 padding.
*
* \note Choice of padding mode is strictly enforced for private key
* operations, since there might be security concerns in
* mixing padding modes. For public key operations it's merely
* a default value, which can be overriden by calling specific
* rsa_rsaes_xxx or rsa_rsassa_xxx functions.
*
* \note The chosen hash is always used for OEAP encryption.
* For PSS signatures, it's always used for making signatures,
* but can be overriden (and always is, if set to
* MBEDTLS_MD_NONE) for verifying them.
*/
void mbedtls_rsa_init(mbedtls_rsa_context *ctx,
int padding,
int hash_id);
/**
* \brief Check a public RSA key
*
* \param ctx RSA context to be checked
*
* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
*/
int mbedtls_rsa_check_pubkey(const mbedtls_rsa_context *ctx);
/**
* \brief Check a private RSA key
*
* \param ctx RSA context to be checked
*
* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
*/
int mbedtls_rsa_check_privkey(const mbedtls_rsa_context *ctx);
/**
* \brief Check a public-private RSA key pair.
* Check each of the contexts, and make sure they match.
*
* \param pub RSA context holding the public key
* \param prv RSA context holding the private key
*
* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
*/
int mbedtls_rsa_check_pub_priv(const mbedtls_rsa_context *pub, const mbedtls_rsa_context *prv);
/**
* \brief Generic wrapper to perform a PKCS#1 encryption using the
* mode from the context. Add the message padding, then do an
* RSA operation.
*
* \param ctx RSA context
* \param f_rng RNG function (Needed for padding and PKCS#1 v2.1 encoding
* and MBEDTLS_RSA_PRIVATE)
* \param p_rng RNG parameter
* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
* \param ilen contains the plaintext length
* \param input buffer holding the data to be encrypted
* \param output buffer that will hold the ciphertext
*
* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
*
* \note The output buffer must be as large as the size
* of ctx->N (eg. 128 bytes if RSA-1024 is used).
*/
int mbedtls_rsa_pkcs1_encrypt(mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode, size_t ilen,
const unsigned char *input,
unsigned char *output);
/**
* \brief Generic wrapper to perform a PKCS#1 decryption using the
* mode from the context. Do an RSA operation, then remove
* the message padding
*
* \param ctx RSA context
* \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
* \param p_rng RNG parameter
* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
* \param olen will contain the plaintext length
* \param input buffer holding the encrypted data
* \param output buffer that will hold the plaintext
* \param output_max_len maximum length of the output buffer
*
* \return 0 if successful, or an MBEDTLS_ERR_RSA_XXX error code
*
* \note The output buffer must be as large as the size
* of ctx->N (eg. 128 bytes if RSA-1024 is used) otherwise
* an error is thrown.
*/
int mbedtls_rsa_pkcs1_decrypt(mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode, size_t *olen,
const unsigned char *input,
unsigned char *output,
size_t output_max_len);
/**
* \brief Generic wrapper to perform a PKCS#1 signature using the
* mode from the context. Do a private RSA operation to sign
* a message digest
*
* \param ctx RSA context
* \param f_rng RNG function (Needed for PKCS#1 v2.1 encoding and for
* MBEDTLS_RSA_PRIVATE)
* \param p_rng RNG parameter
* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
* \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
* \param hashlen message digest length (for MBEDTLS_MD_NONE only)
* \param hash buffer holding the message digest
* \param sig buffer that will hold the ciphertext
*
* \return 0 if the signing operation was successful,
* or an MBEDTLS_ERR_RSA_XXX error code
*
* \note The "sig" buffer must be as large as the size
* of ctx->N (eg. 128 bytes if RSA-1024 is used).
*
* \note In case of PKCS#1 v2.1 encoding, see comments on
* \note \c mbedtls_rsa_rsassa_pss_sign() for details on md_alg and hash_id.
*/
int mbedtls_rsa_pkcs1_sign(mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode,
mbedtls_md_type_t md_alg,
unsigned int hashlen,
const unsigned char *hash,
unsigned char *sig);
/**
* \brief Generic wrapper to perform a PKCS#1 verification using the
* mode from the context. Do a public RSA operation and check
* the message digest
*
* \param ctx points to an RSA public key
* \param f_rng RNG function (Only needed for MBEDTLS_RSA_PRIVATE)
* \param p_rng RNG parameter
* \param mode MBEDTLS_RSA_PUBLIC or MBEDTLS_RSA_PRIVATE
* \param md_alg a MBEDTLS_MD_XXX (use MBEDTLS_MD_NONE for signing raw data)
* \param hashlen message digest length (for MBEDTLS_MD_NONE only)
* \param hash buffer holding the message digest
* \param sig buffer holding the ciphertext
*
* \return 0 if the verify operation was successful,
* or an MBEDTLS_ERR_RSA_XXX error code
*
* \note The "sig" buffer must be as large as the size
* of ctx->N (eg. 128 bytes if RSA-1024 is used).
*
* \note In case of PKCS#1 v2.1 encoding, see comments on
* \c mbedtls_rsa_rsassa_pss_verify() about md_alg and hash_id.
*/
int mbedtls_rsa_pkcs1_verify(mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng,
int mode,
mbedtls_md_type_t md_alg,
unsigned int hashlen,
const unsigned char *hash,
const unsigned char *sig);
/**
* \brief Free the components of an RSA key
*
* \param ctx RSA Context to free
*/
void mbedtls_rsa_free(mbedtls_rsa_context *ctx);
/**
* \brief This function retrieves the length of RSA modulus in Bytes.
*
* \param ctx The initialized RSA context.
*
* \return The length of the RSA modulus in Bytes.
*
*/
size_t mbedtls_rsa_get_len( const mbedtls_rsa_context *ctx );
/**
* \brief This function imports core RSA parameters, in raw big-endian
* binary format, into an RSA context.
*
* \note This function can be called multiple times for successive
* imports, if the parameters are not simultaneously present.
*
* Any sequence of calls to this function should be followed
* by a call to mbedtls_rsa_complete(), which checks and
* completes the provided information to a ready-for-use
* public or private RSA key.
*
* \note See mbedtls_rsa_complete() for more information on which
* parameters are necessary to set up a private or public
* RSA key.
*
* \note The imported parameters are copied and need not be preserved
* for the lifetime of the RSA context being set up.
*
* \param ctx The initialized RSA context to store the parameters in.
* \param N The RSA modulus. This may be \c NULL.
* \param N_len The Byte length of \p N; it is ignored if \p N == NULL.
* \param P The first prime factor of \p N. This may be \c NULL.
* \param P_len The Byte length of \p P; it ns ignored if \p P == NULL.
* \param Q The second prime factor of \p N. This may be \c NULL.
* \param Q_len The Byte length of \p Q; it is ignored if \p Q == NULL.
* \param D The private exponent. This may be \c NULL.
* \param D_len The Byte length of \p D; it is ignored if \p D == NULL.
* \param E The public exponent. This may be \c NULL.
* \param E_len The Byte length of \p E; it is ignored if \p E == NULL.
*
* \return \c 0 on success.
* \return A non-zero error code on failure.
*/
int mbedtls_rsa_import_raw( mbedtls_rsa_context *ctx,
unsigned char const *N, size_t N_len,
unsigned char const *P, size_t P_len,
unsigned char const *Q, size_t Q_len,
unsigned char const *D, size_t D_len,
unsigned char const *E, size_t E_len );
/**
* \brief This function completes an RSA context from
* a set of imported core parameters.
*
* To setup an RSA public key, precisely \p N and \p E
* must have been imported.
*
* To setup an RSA private key, sufficient information must
* be present for the other parameters to be derivable.
*
* The default implementation supports the following:
* <ul><li>Derive \p P, \p Q from \p N, \p D, \p E.</li>
* <li>Derive \p N, \p D from \p P, \p Q, \p E.</li></ul>
* Alternative implementations need not support these.
*
* If this function runs successfully, it guarantees that
* the RSA context can be used for RSA operations without
* the risk of failure or crash.
*
* \warning This function need not perform consistency checks
* for the imported parameters. In particular, parameters that
* are not needed by the implementation might be silently
* discarded and left unchecked. To check the consistency
* of the key material, see mbedtls_rsa_check_privkey().
*
* \param ctx The initialized RSA context holding imported parameters.
*
* \return \c 0 on success.
* \return #MBEDTLS_ERR_RSA_BAD_INPUT_DATA if the attempted derivations
* failed.
*
*/
int mbedtls_rsa_complete( mbedtls_rsa_context *ctx );
#ifdef __cplusplus
}
#endif
#endif /* rsa.h */
| YifuLiu/AliOS-Things | components/mbedtls/platform/yoc/include/rsa_alt.h | C | apache-2.0 | 14,083 |
/**
* \file sha1.h
*
* \brief SHA-1 cryptographic hash function
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#ifndef MBEDTLS_SHA1_ALT_H
#define MBEDTLS_SHA1_ALT_H
#ifdef __cplusplus
extern "C" {
#endif
#include "sec_crypto_sha.h"
/**
* \brief SHA-1 context structure
*/
typedef struct {
sc_sha_t sc_sha;
sc_sha_context_t sc_ctx;
}
mbedtls_sha1_context;
/**
* \brief Initialize SHA-1 context
*
* \param ctx SHA-1 context to be initialized
*/
void mbedtls_sha1_init(mbedtls_sha1_context *ctx);
/**
* \brief Clear SHA-1 context
*
* \param ctx SHA-1 context to be cleared
*/
void mbedtls_sha1_free(mbedtls_sha1_context *ctx);
/**
* \brief Clone (the state of) a SHA-1 context
*
* \param dst The destination context
* \param src The context to be cloned
*/
void mbedtls_sha1_clone(mbedtls_sha1_context *dst, const mbedtls_sha1_context *src);
/**
* \brief SHA-1 context setup
*
* \param ctx context to be initialized
*/
void mbedtls_sha1_starts(mbedtls_sha1_context *ctx);
/**
* \brief SHA-1 process buffer
*
* \param ctx SHA-1 context
* \param input buffer holding the data
* \param ilen length of the input data
*/
void mbedtls_sha1_update(mbedtls_sha1_context *ctx, const unsigned char *input, size_t ilen);
/**
* \brief SHA-1 final digest
*
* \param ctx SHA-1 context
* \param output SHA-1 checksum result
*/
void mbedtls_sha1_finish(mbedtls_sha1_context *ctx, unsigned char output[20]);
/* Internal use */
void mbedtls_sha1_process(mbedtls_sha1_context *ctx, const unsigned char data[64]);
#ifdef __cplusplus
}
#endif
#endif /* mbedtls_sha1.h */
| YifuLiu/AliOS-Things | components/mbedtls/platform/yoc/include/sha1_alt.h | C | apache-2.0 | 2,393 |
/**
* \file sha256.h
*
* \brief SHA-224 and SHA-256 cryptographic hash function
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#ifndef MBEDTLS_SHA256_ALT_H
#define MBEDTLS_SHA256_ALT_H
#ifdef __cplusplus
extern "C" {
#endif
#include "sec_crypto_sha.h"
/**
* \brief SHA-256 context structure
*/
typedef struct
{
#if defined(CONFIG_TEE_SHA256)
uint8_t ctx[224+8];
#endif
sc_sha_t sc_sha;
sc_sha_context_t sc_ctx;
}
mbedtls_sha256_context;
/**
* \brief Initialize SHA-256 context
*
* \param ctx SHA-256 context to be initialized
*/
void mbedtls_sha256_init( mbedtls_sha256_context *ctx );
/**
* \brief Clear SHA-256 context
*
* \param ctx SHA-256 context to be cleared
*/
void mbedtls_sha256_free( mbedtls_sha256_context *ctx );
/**
* \brief Clone (the state of) a SHA-256 context
*
* \param dst The destination context
* \param src The context to be cloned
*/
void mbedtls_sha256_clone( mbedtls_sha256_context *dst,
const mbedtls_sha256_context *src );
/**
* \brief SHA-256 context setup
*
* \param ctx context to be initialized
* \param is224 0 = use SHA256, 1 = use SHA224
*/
int mbedtls_sha256_starts_ret( mbedtls_sha256_context *ctx, int is224 );
/**
* \brief SHA-256 process buffer
*
* \param ctx SHA-256 context
* \param input buffer holding the data
* \param ilen length of the input data
*/
int mbedtls_sha256_update_ret( mbedtls_sha256_context *ctx, const unsigned char *input,
size_t ilen );
/**
* \brief SHA-256 final digest
*
* \param ctx SHA-256 context
* \param output SHA-224/256 checksum result
*/
int mbedtls_sha256_finish_ret( mbedtls_sha256_context *ctx, unsigned char output[32] );
/* Internal use */
void mbedtls_sha256_process( mbedtls_sha256_context *ctx, const unsigned char data[64] );
int mbedtls_internal_sha256_process( mbedtls_sha256_context *ctx,
const unsigned char data[64] );
#ifdef __cplusplus
}
#endif
#endif /* mbedtls_sha256.h */
| YifuLiu/AliOS-Things | components/mbedtls/platform/yoc/include/sha256_alt.h | C | apache-2.0 | 2,806 |
/**
* \file timing.h
*
* \brief Portable interface to the CPU cycle counter
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#ifndef MBEDTLS_TIMING_ALT_H
#define MBEDTLS_TIMING_ALT_H
#if !defined(MBEDTLS_CONFIG_FILE)
#include "config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief timer structure
*/
struct mbedtls_timing_hr_time
{
unsigned char opaque[32];
};
/**
* \brief Context for mbedtls_timing_set/get_delay()
*/
typedef struct
{
struct mbedtls_timing_hr_time timer;
uint32_t int_ms;
uint32_t fin_ms;
} mbedtls_timing_delay_context;
extern volatile int mbedtls_timing_alarmed;
/**
* \brief Return the CPU cycle counter value
*
* \warning This is only a best effort! Do not rely on this!
* In particular, it is known to be unreliable on virtual
* machines.
*/
unsigned long mbedtls_timing_hardclock( void );
/**
* \brief Return the elapsed time in milliseconds
*
* \param val points to a timer structure
* \param reset if set to 1, the timer is restarted
*/
unsigned long mbedtls_timing_get_timer( struct mbedtls_timing_hr_time *val, int reset );
/**
* \brief Setup an alarm clock
*
* \param seconds delay before the "mbedtls_timing_alarmed" flag is set
*
* \warning Only one alarm at a time is supported. In a threaded
* context, this means one for the whole process, not one per
* thread.
*/
void mbedtls_set_alarm( int seconds );
/**
* \brief Set a pair of delays to watch
* (See \c mbedtls_timing_get_delay().)
*
* \param data Pointer to timing data
* Must point to a valid \c mbedtls_timing_delay_context struct.
* \param int_ms First (intermediate) delay in milliseconds.
* \param fin_ms Second (final) delay in milliseconds.
* Pass 0 to cancel the current delay.
*/
void mbedtls_timing_set_delay( void *data, uint32_t int_ms, uint32_t fin_ms );
/**
* \brief Get the status of delays
* (Memory helper: number of delays passed.)
*
* \param data Pointer to timing data
* Must point to a valid \c mbedtls_timing_delay_context struct.
*
* \return -1 if cancelled (fin_ms = 0)
* 0 if none of the delays are passed,
* 1 if only the intermediate delay is passed,
* 2 if the final delay is passed.
*/
int mbedtls_timing_get_delay( void *data );
#ifdef __cplusplus
extern "C" {
#endif
#ifdef __cplusplus
}
#endif
#endif /* timing.h */
| YifuLiu/AliOS-Things | components/mbedtls/platform/yoc/include/timing_alt.h | C | apache-2.0 | 3,417 |
/*
* TCP/IP or UDP/IP networking functions
* modified for LWIP support on ESP32
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* Additions Copyright (C) 2015 Angus Gratton
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if defined(CONFIG_SAL) || defined(CONFIG_TCPIP)
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if !defined(MBEDTLS_NET_C)
#if defined(MBEDTLS_NET_C_ALT)
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#define mbedtls_calloc calloc
#define mbedtls_free free
#define mbedtls_time time
#define mbedtls_time_t time_t
#endif
#include "mbedtls/net_sockets.h"
#include <string.h>
#include <sys/types.h>
#include <sys/select.h>
#include <unistd.h>
#include <lwip/netdb.h>
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include <stdint.h>
/*
* Prepare for using the sockets interface
*/
static int net_prepare( void )
{
return ( 0 );
}
/*
* Initialize a context
*/
void mbedtls_net_init( mbedtls_net_context *ctx )
{
ctx->fd = -1;
}
/*
* Initiate a TCP connection with host:port and the given protocol
*/
int mbedtls_net_connect( mbedtls_net_context *ctx, const char *host, const char *port, int proto )
{
int ret;
struct addrinfo hints, *addr_list, *cur;
/* Do name resolution with both IPv6 and IPv4 */
memset( &hints, 0, sizeof( hints ) );
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = proto == MBEDTLS_NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM;
hints.ai_protocol = proto == MBEDTLS_NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP;
if( getaddrinfo( host, port, &hints, &addr_list ) != 0 )
return( MBEDTLS_ERR_NET_UNKNOWN_HOST );
/* Try the sockaddrs until a connection succeeds */
ret = MBEDTLS_ERR_NET_UNKNOWN_HOST;
for( cur = addr_list; cur != NULL; cur = cur->ai_next )
{
ctx->fd = (int) socket( cur->ai_family, cur->ai_socktype,
cur->ai_protocol );
if( ctx->fd < 0 )
{
ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
continue;
}
if( connect( ctx->fd, cur->ai_addr, (socklen_t)cur->ai_addrlen ) == 0 )
{
ret = 0;
break;
}
close( ctx->fd );
ret = MBEDTLS_ERR_NET_CONNECT_FAILED;
}
freeaddrinfo( addr_list );
return( ret );
}
/*
* Create a listening socket on bind_ip:port
*/
int mbedtls_net_bind( mbedtls_net_context *ctx, const char *bind_ip, const char *port, int proto )
{
int ret;
struct addrinfo hints, *addr_list, *cur;
struct sockaddr_in *serv_addr = NULL;
#if SO_REUSE
int n = 1;
#endif
if ( ( ret = net_prepare() ) != 0 ) {
return ( ret );
}
/* Bind to IPv6 and/or IPv4, but only in the desired protocol */
memset( &hints, 0, sizeof( hints ) );
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = proto == MBEDTLS_NET_PROTO_UDP ? SOCK_DGRAM : SOCK_STREAM;
hints.ai_protocol = proto == MBEDTLS_NET_PROTO_UDP ? IPPROTO_UDP : IPPROTO_TCP;
if ( getaddrinfo( bind_ip, port, &hints, &addr_list ) != 0 ) {
return ( MBEDTLS_ERR_NET_UNKNOWN_HOST );
}
/* Try the sockaddrs until a binding succeeds */
ret = MBEDTLS_ERR_NET_UNKNOWN_HOST;
for ( cur = addr_list; cur != NULL; cur = cur->ai_next ) {
int fd = socket( cur->ai_family, cur->ai_socktype, cur->ai_protocol );
if ( fd < 0 ) {
ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
continue;
}
/*SO_REUSEADDR option dafault is disable in source code(lwip)*/
#if SO_REUSE
if ( setsockopt( fd, SOL_SOCKET, SO_REUSEADDR,
(const char *) &n, sizeof( n ) ) != 0 ) {
close( fd );
ret = MBEDTLS_ERR_NET_SOCKET_FAILED;
continue;
}
#endif
/*bind interface dafault don't process the addr is 0xffffffff for TCP Protocol*/
serv_addr = (struct sockaddr_in *)cur->ai_addr;
serv_addr->sin_addr.s_addr = htonl(INADDR_ANY); /* Any incoming interface */
if ( bind( fd, (struct sockaddr *)serv_addr, cur->ai_addrlen ) != 0 ) {
close( fd );
ret = MBEDTLS_ERR_NET_BIND_FAILED;
continue;
}
/* Listen only makes sense for TCP */
if ( proto == MBEDTLS_NET_PROTO_TCP ) {
if ( listen( fd, MBEDTLS_NET_LISTEN_BACKLOG ) != 0 ) {
close( fd );
ret = MBEDTLS_ERR_NET_LISTEN_FAILED;
continue;
}
}
/* I we ever get there, it's a success */
ctx->fd = fd;
ret = 0;
break;
}
freeaddrinfo( addr_list );
return ( ret );
}
/*
* Check if the requested operation would be blocking on a non-blocking socket
* and thus 'failed' with a negative return value.
*
* Note: on a blocking socket this function always returns 0!
*/
static int net_would_block( const mbedtls_net_context *ctx )
{
int error = errno;
/*
* Never return 'WOULD BLOCK' on a non-blocking socket
*/
if ( ( fcntl( ctx->fd, F_GETFL, 0) & O_NONBLOCK ) != O_NONBLOCK ) {
errno = error;
return ( 0 );
}
switch ( errno = error ) {
#if defined EAGAIN
case EAGAIN:
#endif
#if defined EWOULDBLOCK && EWOULDBLOCK != EAGAIN
case EWOULDBLOCK:
#endif
return ( 1 );
}
return ( 0 );
}
/*
* Accept a connection from a remote client
*/
int mbedtls_net_accept( mbedtls_net_context *bind_ctx,
mbedtls_net_context *client_ctx,
void *client_ip, size_t buf_size, size_t *ip_len )
{
int ret;
int type;
struct sockaddr_in client_addr;
socklen_t n = (socklen_t) sizeof( client_addr );
socklen_t type_len = (socklen_t) sizeof( type );
/* Is this a TCP or UDP socket? */
if ( getsockopt( bind_ctx->fd, SOL_SOCKET, SO_TYPE,
(void *) &type, (socklen_t *) &type_len ) != 0 ||
( type != SOCK_STREAM && type != SOCK_DGRAM ) ) {
return ( MBEDTLS_ERR_NET_ACCEPT_FAILED );
}
if ( type == SOCK_STREAM ) {
/* TCP: actual accept() */
ret = client_ctx->fd = (int) accept( bind_ctx->fd,
(struct sockaddr *) &client_addr, &n );
} else {
/* UDP: wait for a message, but keep it in the queue */
char buf[1] = { 0 };
ret = recvfrom( bind_ctx->fd, buf, sizeof( buf ), MSG_PEEK,
(struct sockaddr *) &client_addr, &n );
}
if ( ret < 0 ) {
if ( net_would_block( bind_ctx ) != 0 ) {
return ( MBEDTLS_ERR_SSL_WANT_READ );
}
return ( MBEDTLS_ERR_NET_ACCEPT_FAILED );
}
/* UDP: hijack the listening socket to communicate with the client,
* then bind a new socket to accept new connections */
if ( type != SOCK_STREAM ) {
struct sockaddr_in local_addr;
int one = 1;
if ( connect( bind_ctx->fd, (struct sockaddr *) &client_addr, n ) != 0 ) {
return ( MBEDTLS_ERR_NET_ACCEPT_FAILED );
}
client_ctx->fd = bind_ctx->fd;
bind_ctx->fd = -1; /* In case we exit early */
n = sizeof( struct sockaddr_in );
if ( getsockname( client_ctx->fd,
(struct sockaddr *) &local_addr, &n ) != 0 ||
( bind_ctx->fd = (int) socket( AF_INET,
SOCK_DGRAM, IPPROTO_UDP ) ) < 0 ||
setsockopt( bind_ctx->fd, SOL_SOCKET, SO_REUSEADDR,
(const char *) &one, sizeof( one ) ) != 0 ) {
return ( MBEDTLS_ERR_NET_SOCKET_FAILED );
}
if ( bind( bind_ctx->fd, (struct sockaddr *) &local_addr, n ) != 0 ) {
return ( MBEDTLS_ERR_NET_BIND_FAILED );
}
}
if ( client_ip != NULL ) {
struct sockaddr_in *addr4 = (struct sockaddr_in *) &client_addr;
*ip_len = sizeof( addr4->sin_addr.s_addr );
if ( buf_size < *ip_len ) {
return ( MBEDTLS_ERR_NET_BUFFER_TOO_SMALL );
}
memcpy( client_ip, &addr4->sin_addr.s_addr, *ip_len );
}
return ( 0 );
}
/*
* Set the socket blocking or non-blocking
*/
int mbedtls_net_set_block( mbedtls_net_context *ctx )
{
return ( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL, 0 ) & ~O_NONBLOCK ) );
}
int mbedtls_net_set_nonblock( mbedtls_net_context *ctx )
{
return ( fcntl( ctx->fd, F_SETFL, fcntl( ctx->fd, F_GETFL, 0 ) | O_NONBLOCK ) );
}
/*
* Portable usleep helper
*/
void mbedtls_net_usleep( unsigned long usec )
{
struct timeval tv;
tv.tv_sec = usec / 1000000;
tv.tv_usec = usec % 1000000;
select( 0, NULL, NULL, NULL, &tv );
}
/*
* Read at most 'len' characters
*/
int mbedtls_net_recv( void *ctx, unsigned char *buf, size_t len )
{
int ret;
int fd = ((mbedtls_net_context *) ctx)->fd;
if( fd < 0 )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
ret = (int) recv( fd, buf, len, 0);
// DBG("@@ret:%d, errno:%d", ret, errno);
if( ret < 0 )
{
// if( errno == EAGAIN )
// return( MBEDTLS_ERR_SSL_WANT_READ );
if( errno == EPIPE || errno == ECONNRESET )
return( MBEDTLS_ERR_NET_CONN_RESET );
if( errno == EINTR )
return( MBEDTLS_ERR_SSL_WANT_READ );
return( MBEDTLS_ERR_NET_RECV_FAILED );
}
return( ret );
}
/*
* Read at most 'len' characters, blocking for at most 'timeout' ms
*/
int mbedtls_net_recv_timeout( void *ctx, unsigned char *buf, size_t len,
uint32_t timeout )
{
int ret;
struct timeval tv;
fd_set read_fds;
int fd = ((mbedtls_net_context *) ctx)->fd;
if( fd < 0 )
return( MBEDTLS_ERR_NET_INVALID_CONTEXT );
FD_ZERO( &read_fds );
FD_SET( fd, &read_fds );
tv.tv_sec = timeout / 1000;
tv.tv_usec = ( timeout % 1000 ) * 1000;
/* no wait if timeout == 0 */
ret = select( fd + 1, &read_fds, NULL, NULL, &tv );
// printf("%s, %d, select ret:%d\n", __func__, __LINE__, ret);
/* Zero fds ready means we timed out */
if( ret == 0 )
return( MBEDTLS_ERR_SSL_TIMEOUT );
if( ret < 0 )
{
if( errno == EINTR )
return( MBEDTLS_ERR_SSL_WANT_READ );
return( MBEDTLS_ERR_NET_RECV_FAILED );
}
/* This call will not block */
return( mbedtls_net_recv( ctx, buf, len ) );
}
/*
* Write at most 'len' characters
*/
int mbedtls_net_send( void *ctx, const unsigned char *buf, size_t len )
{
int ret;
int fd = ((mbedtls_net_context *) ctx)->fd;
ret = (int) send( fd, buf, len, 0);
if( ret < 0 )
{
if( errno == EPIPE || errno == ECONNRESET )
return( MBEDTLS_ERR_NET_CONN_RESET );
if( errno == EINTR )
return( MBEDTLS_ERR_SSL_WANT_WRITE );
return( MBEDTLS_ERR_NET_SEND_FAILED );
}
return( ret );
}
/*
* Gracefully close the connection
*/
void mbedtls_net_free( mbedtls_net_context *ctx )
{
if ( ctx->fd == -1 ) {
return;
}
shutdown( ctx->fd, 2 );
close( ctx->fd );
ctx->fd = -1;
}
#endif /* MBEDTLS_NET_C_ALT */
#endif /* MBEDTLS_NET_C */
#endif
| YifuLiu/AliOS-Things | components/mbedtls/platform/yoc/net_sockets.c | C | apache-2.0 | 11,929 |
/*
* The RSA public-key cryptosystem
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The following sources were referenced in the design of this implementation
* of the RSA algorithm:
*
* [1] A method for obtaining digital signatures and public-key cryptosystems
* R Rivest, A Shamir, and L Adleman
* http://people.csail.mit.edu/rivest/pubs.html#RSA78
*
* [2] Handbook of Applied Cryptography - 1997, Chapter 8
* Menezes, van Oorschot and Vanstone
*
* [3] Malware Guard Extension: Using SGX to Conceal Cache Attacks
* Michael Schwarz, Samuel Weiser, Daniel Gruss, Clémentine Maurice and
* Stefan Mangard
* https://arxiv.org/abs/1702.08719v2
*
*/
#include "mbedtls/rsa.h"
#include <string.h>
#include "mbedtls/platform_util.h"
#include "mbedtls/rsa_internal.h"
#if defined(MBEDTLS_PKCS1_V21)
#include "mbedtls/md.h"
#endif
#if defined(MBEDTLS_PKCS1_V15) && !defined(__OpenBSD__)
#include <stdlib.h>
#endif
#ifdef MBEDTLS_RSA_ALT
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#define mbedtls_printf printf
#define mbedtls_calloc calloc
#define mbedtls_free free
#endif
#if defined(CONFIG_TEE_RSA)
#include "drv/tee.h"
#endif
#define RSA_VALIDATE_RET( cond ) \
MBEDTLS_INTERNAL_VALIDATE_RET( cond, MBEDTLS_ERR_RSA_BAD_INPUT_DATA )
/*
* Initialize an RSA context
*/
void mbedtls_rsa_init(mbedtls_rsa_context *ctx, int padding, int hash_id)
{
memset(ctx, 0, sizeof(mbedtls_rsa_context));
ctx->padding = padding;
ctx->hash_id = hash_id;
/* NOTE: set invalid bitwidth to 0 */
sc_rsa_init(&ctx->sc_rsa, 0, 0);
memset(&ctx->sc_ctx, 0, sizeof(sc_rsa_context_t));
}
/*
* Checks whether the context fields are set in such a way
* that the RSA primitives will be able to execute without error.
* It does *not* make guarantees for consistency of the parameters.
*/
static int rsa_check_context( mbedtls_rsa_context const *ctx, int is_priv,
int blinding_needed )
{
#if !defined(MBEDTLS_RSA_NO_CRT)
/* blinding_needed is only used for NO_CRT to decide whether
* P,Q need to be present or not. */
((void) blinding_needed);
#endif
if( ctx->len != mbedtls_mpi_size( &ctx->N ) ||
ctx->len > MBEDTLS_MPI_MAX_SIZE )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
/*
* 1. Modular exponentiation needs positive, odd moduli.
*/
/* Modular exponentiation wrt. N is always used for
* RSA public key operations. */
if( mbedtls_mpi_cmp_int( &ctx->N, 0 ) <= 0 ||
mbedtls_mpi_get_bit( &ctx->N, 0 ) == 0 )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
#if !defined(MBEDTLS_RSA_NO_CRT)
/* Modular exponentiation for P and Q is only
* used for private key operations and if CRT
* is used. */
if( is_priv &&
( mbedtls_mpi_cmp_int( &ctx->P, 0 ) <= 0 ||
mbedtls_mpi_get_bit( &ctx->P, 0 ) == 0 ||
mbedtls_mpi_cmp_int( &ctx->Q, 0 ) <= 0 ||
mbedtls_mpi_get_bit( &ctx->Q, 0 ) == 0 ) )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
#endif /* !MBEDTLS_RSA_NO_CRT */
/*
* 2. Exponents must be positive
*/
/* Always need E for public key operations */
if( mbedtls_mpi_cmp_int( &ctx->E, 0 ) <= 0 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
#if defined(MBEDTLS_RSA_NO_CRT)
/* For private key operations, use D or DP & DQ
* as (unblinded) exponents. */
if( is_priv && mbedtls_mpi_cmp_int( &ctx->D, 0 ) <= 0 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
#else
if( is_priv &&
( mbedtls_mpi_cmp_int( &ctx->DP, 0 ) <= 0 ||
mbedtls_mpi_cmp_int( &ctx->DQ, 0 ) <= 0 ) )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
#endif /* MBEDTLS_RSA_NO_CRT */
/* Blinding shouldn't make exponents negative either,
* so check that P, Q >= 1 if that hasn't yet been
* done as part of 1. */
#if defined(MBEDTLS_RSA_NO_CRT)
if( is_priv && blinding_needed &&
( mbedtls_mpi_cmp_int( &ctx->P, 0 ) <= 0 ||
mbedtls_mpi_cmp_int( &ctx->Q, 0 ) <= 0 ) )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
#endif
/* It wouldn't lead to an error if it wasn't satisfied,
* but check for QP >= 1 nonetheless. */
#if !defined(MBEDTLS_RSA_NO_CRT)
if( is_priv &&
mbedtls_mpi_cmp_int( &ctx->QP, 0 ) <= 0 )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA );
}
#endif
return( 0 );
}
/*
* Check a public RSA key
*/
int mbedtls_rsa_check_pubkey(const mbedtls_rsa_context *ctx)
{
RSA_VALIDATE_RET( ctx != NULL );
if( rsa_check_context( ctx, 0 /* public */, 0 /* no blinding */ ) != 0 ) {
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
}
if( mbedtls_mpi_bitlen( &ctx->N ) < 128 )
{
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
}
if( mbedtls_mpi_get_bit( &ctx->E, 0 ) == 0 ||
mbedtls_mpi_bitlen( &ctx->E ) < 2 ||
mbedtls_mpi_cmp_mpi( &ctx->E, &ctx->N ) >= 0 )
{
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
}
return( 0 );
}
/*
* Check a private RSA key
*/
int mbedtls_rsa_check_privkey(const mbedtls_rsa_context *ctx)
{
RSA_VALIDATE_RET( ctx != NULL );
if( mbedtls_rsa_check_pubkey( ctx ) != 0 ||
rsa_check_context( ctx, 1 /* private */, 1 /* blinding */ ) != 0 )
{
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
}
if( mbedtls_rsa_validate_params( &ctx->N, &ctx->P, &ctx->Q,
&ctx->D, &ctx->E, NULL, NULL ) != 0 )
{
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
}
#if !defined(MBEDTLS_RSA_NO_CRT)
else if( mbedtls_rsa_validate_crt( &ctx->P, &ctx->Q, &ctx->D,
&ctx->DP, &ctx->DQ, &ctx->QP ) != 0 )
{
return( MBEDTLS_ERR_RSA_KEY_CHECK_FAILED );
}
#endif
return( 0 );
}
/*
* Check if contexts holding a public and private key match
*/
int mbedtls_rsa_check_pub_priv(const mbedtls_rsa_context *pub, const mbedtls_rsa_context *prv)
{
if (mbedtls_rsa_check_pubkey(pub) != 0 || mbedtls_rsa_check_privkey(prv) != 0) {
return (MBEDTLS_ERR_RSA_KEY_CHECK_FAILED);
}
if (mbedtls_mpi_cmp_mpi(&pub->N, &prv->N) != 0 || mbedtls_mpi_cmp_mpi(&pub->E, &prv->E) != 0) {
return (MBEDTLS_ERR_RSA_KEY_CHECK_FAILED);
}
return (0);
}
/*
* Add the message padding, then do an RSA operation
*/
int mbedtls_rsa_pkcs1_encrypt(mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng, int mode,
size_t ilen, const unsigned char *input, unsigned char *output)
{
int ret = 0;
unsigned int output_len = 128;
unsigned char *key;
unsigned int key_size = 0;
(void)f_rng;
(void)p_rng;
(void)mode;
(void)output_len;
/*for now Only support RSA1024 and RSA2048*/
if (ctx->len != 128 && ctx->len != 256) {
return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
}
switch (ctx->padding) {
#if defined(MBEDTLS_PKCS1_V15)
case MBEDTLS_RSA_PKCS_V15:
key_size = mbedtls_mpi_size(&ctx->N);
key = (unsigned char *)mbedtls_calloc(1, key_size * 2);
if (!key) {
return MBEDTLS_ERR_RSA_PUBLIC_FAILED;
}
mbedtls_mpi_write_binary(&ctx->N, key, key_size);
mbedtls_mpi_write_binary(&ctx->E, key + key_size, key_size);
unsigned char *new_output = mbedtls_calloc(1, 256);
(void)ret;
#if defined(CONFIG_TEE_RSA)
ret = csi_tee_rsa_encrypt(input, ilen,
key, key_size * 2,
new_output, &output_len,
TEE_RSA_PKCS1_PADDING);
#endif
ctx->sc_ctx.key_bits = ctx->len * 8;
ctx->sc_ctx.padding_type = SC_RSA_PADDING_MODE_PKCS1;
ctx->sc_ctx.n = key;
ctx->sc_ctx.e = key + key_size;
ret = sc_rsa_encrypt(&ctx->sc_rsa, &ctx->sc_ctx, (void *)input, ilen, new_output);
memcpy(output, new_output, ctx->len);
mbedtls_free(key);
mbedtls_free(new_output);
if (ret) {
return MBEDTLS_ERR_RSA_PUBLIC_FAILED;
}
return 0;
default:
return (MBEDTLS_ERR_RSA_INVALID_PADDING);
}
#endif
}
/*
* Do an RSA operation, then remove the message padding
*/
int mbedtls_rsa_pkcs1_decrypt(mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng, int mode,
size_t *olen, const unsigned char *input, unsigned char *output,
size_t output_max_len)
{
unsigned char *key;
unsigned int key_size = 0;
int ret = 0;
(void)f_rng;
(void)p_rng;
(void)mode;
(void)output_max_len;
(void)ret;
/*for now Only support RSA1024 and RSA2048*/
if (ctx->len != 128 && ctx->len != 256) {
return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
}
switch (ctx->padding) {
#if defined(MBEDTLS_PKCS1_V15)
case MBEDTLS_RSA_PKCS_V15:
key_size = mbedtls_mpi_size(&ctx->N);
key = (unsigned char *)mbedtls_calloc(1, key_size * 3);
if (!key) {
return MBEDTLS_ERR_RSA_PUBLIC_FAILED;
}
mbedtls_mpi_write_binary(&ctx->N, key, key_size);
mbedtls_mpi_write_binary(&ctx->E, key + key_size, key_size);
mbedtls_mpi_write_binary(&ctx->D, key + key_size + key_size, key_size);
#if defined(CONFIG_TEE_RSA)
ret = csi_tee_rsa_decrypt(input, ctx->len,
key, key_size * 3,
output, olen,
TEE_RSA_PKCS1_PADDING);
#endif
ctx->sc_ctx.key_bits = ctx->len * 8;
ctx->sc_ctx.padding_type = SC_RSA_PADDING_MODE_PKCS1;
ctx->sc_ctx.n = key;
ctx->sc_ctx.e = key + key_size;
ctx->sc_ctx.d = key + key_size + key_size;
ret = sc_rsa_decrypt(&ctx->sc_rsa, &ctx->sc_ctx, (void *)input, ctx->len, output, olen);
mbedtls_free(key);
if (ret) {
return MBEDTLS_ERR_RSA_PRIVATE_FAILED;
}
break;
default:
return (MBEDTLS_ERR_RSA_INVALID_PADDING);
}
return 0;
}
/*
* Do an RSA operation to sign the message digest
*/
int mbedtls_rsa_pkcs1_sign(mbedtls_rsa_context *ctx, int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng, int mode, mbedtls_md_type_t md_alg, unsigned int hashlen,
const unsigned char *hash, unsigned char *sig)
{
unsigned char type;
int ret = 0;
unsigned int sig_len = 0;
unsigned char *key;
unsigned int key_size = 0;
(void)f_rng;
(void)p_rng;
(void)mode;
(void)sig_len;
/*for now Only support RSA1024 and RSA2048*/
if (ctx->len != 128 && ctx->len != 256) {
return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
}
if (md_alg != MBEDTLS_MD_NONE) {
const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type(md_alg);
hashlen = mbedtls_md_get_size(md_info);
}
#if defined(CONFIG_TEE_RSA)
if (md_alg == MBEDTLS_MD_MD5) {
type = TEE_RSA_MD5;
} else if (md_alg == MBEDTLS_MD_SHA1) {
type = TEE_RSA_SHA1;
} else if (md_alg == MBEDTLS_MD_SHA256) {
type = TEE_RSA_SHA256;
} else {
return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
}
#endif
if (md_alg == MBEDTLS_MD_MD5) {
type = SC_RSA_HASH_TYPE_MD5;
} else if (md_alg == MBEDTLS_MD_SHA1) {
type = SC_RSA_HASH_TYPE_SHA1;
} else if (md_alg == MBEDTLS_MD_SHA256) {
type = SC_RSA_HASH_TYPE_SHA256;
} else {
return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
}
(void)type;
switch (ctx->padding) {
#if defined(MBEDTLS_PKCS1_V15)
case MBEDTLS_RSA_PKCS_V15:
key_size = mbedtls_mpi_size(&ctx->N);
key = (unsigned char *)mbedtls_calloc(1, key_size * 3);
if (!key) {
return MBEDTLS_ERR_RSA_PUBLIC_FAILED;
}
mbedtls_mpi_write_binary(&ctx->N, key, key_size);
mbedtls_mpi_write_binary(&ctx->E, key + key_size, key_size);
mbedtls_mpi_write_binary(&ctx->D, key + key_size + key_size, key_size);
(void)ret;
#if defined(CONFIG_TEE_RSA)
ret = csi_tee_rsa_sign(hash, hashlen, key, key_size * 3, sig, &sig_len, type);
#endif
ctx->sc_ctx.key_bits = ctx->len * 8;
ctx->sc_ctx.padding_type = SC_RSA_PADDING_MODE_PKCS1;
ctx->sc_ctx.n = key;
ctx->sc_ctx.e = key + key_size;
ctx->sc_ctx.d = key + key_size + key_size;
ret = sc_rsa_sign(&ctx->sc_rsa, &ctx->sc_ctx, (void *)hash, hashlen, sig, type);
mbedtls_free(key);
if (ret) {
return MBEDTLS_ERR_RSA_PRIVATE_FAILED;
}
break;
#endif
default:
return (MBEDTLS_ERR_RSA_INVALID_PADDING);
}
return 0;
}
/*
* Do an RSA operation and check the message digest
*/
int mbedtls_rsa_pkcs1_verify(mbedtls_rsa_context *ctx,
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng, int mode,
mbedtls_md_type_t md_alg, unsigned int hashlen,
const unsigned char *hash, const unsigned char *sig)
{
unsigned char type;
int ret = 0;
unsigned char *key;
unsigned int key_size = 0;
(void)f_rng;
(void)p_rng;
(void)mode;
/*for now Only support RSA1024 and RSA2048*/
if (ctx->len != 128 && ctx->len != 256) {
return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
}
if (md_alg != MBEDTLS_MD_NONE) {
const mbedtls_md_info_t *md_info = mbedtls_md_info_from_type(md_alg);
hashlen = mbedtls_md_get_size(md_info);
}
#if defined(CONFIG_TEE_RSA)
if (md_alg == MBEDTLS_MD_MD5) {
type = TEE_RSA_MD5;
} else if (md_alg == MBEDTLS_MD_SHA1) {
type = TEE_RSA_SHA1;
} else if (md_alg == MBEDTLS_MD_SHA256) {
type = TEE_RSA_SHA256;
} else {
return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
}
#endif
if (md_alg == MBEDTLS_MD_MD5) {
type = SC_RSA_HASH_TYPE_MD5;
} else if (md_alg == MBEDTLS_MD_SHA1) {
type = SC_RSA_HASH_TYPE_SHA1;
} else if (md_alg == MBEDTLS_MD_SHA256) {
type = SC_RSA_HASH_TYPE_SHA256;
} else {
return MBEDTLS_ERR_RSA_BAD_INPUT_DATA;
}
switch (ctx->padding) {
#if defined(MBEDTLS_PKCS1_V15)
case MBEDTLS_RSA_PKCS_V15:
key_size = mbedtls_mpi_size(&ctx->N);
key = (unsigned char *)mbedtls_calloc(1, key_size * 2);
if (!key) {
return MBEDTLS_ERR_RSA_PUBLIC_FAILED;
}
mbedtls_mpi_write_binary(&ctx->N, key, key_size);
mbedtls_mpi_write_binary(&ctx->E, key + key_size, key_size);
unsigned char *new_sig = mbedtls_calloc(1, 256);
memcpy(new_sig, sig, 256);
(void)type;
#if defined(CONFIG_TEE_RSA)
ret = csi_tee_rsa_verify((uint8_t *)hash, hashlen, key, key_size * 2,
(uint8_t *)new_sig, ctx->len, type);
#endif
ctx->sc_ctx.key_bits = ctx->len * 8;
ctx->sc_ctx.padding_type = SC_RSA_PADDING_MODE_PKCS1;
ctx->sc_ctx.n = key;
ctx->sc_ctx.e = key + key_size;
ret = sc_rsa_verify(&ctx->sc_rsa, &ctx->sc_ctx, (void *)hash, hashlen, new_sig,
ctx->len, type);
mbedtls_free(new_sig);
mbedtls_free(key);
if (ret) {
/* success */
return 0;
} else {
return MBEDTLS_ERR_RSA_PRIVATE_FAILED;
}
#endif
default:
ret = (MBEDTLS_ERR_RSA_INVALID_PADDING);
}
return ret;
}
size_t mbedtls_rsa_get_len( const mbedtls_rsa_context *ctx )
{
return( ctx->len );
}
int mbedtls_rsa_complete( mbedtls_rsa_context *ctx )
{
return 0;
}
int mbedtls_rsa_import( mbedtls_rsa_context *ctx,
const mbedtls_mpi *N,
const mbedtls_mpi *P, const mbedtls_mpi *Q,
const mbedtls_mpi *D, const mbedtls_mpi *E )
{
int ret;
RSA_VALIDATE_RET( ctx != NULL );
if( ( N != NULL && ( ret = mbedtls_mpi_copy( &ctx->N, N ) ) != 0 ) ||
( P != NULL && ( ret = mbedtls_mpi_copy( &ctx->P, P ) ) != 0 ) ||
( Q != NULL && ( ret = mbedtls_mpi_copy( &ctx->Q, Q ) ) != 0 ) ||
( D != NULL && ( ret = mbedtls_mpi_copy( &ctx->D, D ) ) != 0 ) ||
( E != NULL && ( ret = mbedtls_mpi_copy( &ctx->E, E ) ) != 0 ) )
{
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA + ret );
}
if( N != NULL )
ctx->len = mbedtls_mpi_size( &ctx->N );
return( 0 );
}
int mbedtls_rsa_import_raw( mbedtls_rsa_context *ctx,
unsigned char const *N, size_t N_len,
unsigned char const *P, size_t P_len,
unsigned char const *Q, size_t Q_len,
unsigned char const *D, size_t D_len,
unsigned char const *E, size_t E_len )
{
int ret = 0;
if( N != NULL )
{
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->N, N, N_len ) );
ctx->len = mbedtls_mpi_size( &ctx->N );
}
if( P != NULL )
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->P, P, P_len ) );
if( Q != NULL )
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->Q, Q, Q_len ) );
if( D != NULL )
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->D, D, D_len ) );
if( E != NULL )
MBEDTLS_MPI_CHK( mbedtls_mpi_read_binary( &ctx->E, E, E_len ) );
cleanup:
if( ret != 0 )
return( MBEDTLS_ERR_RSA_BAD_INPUT_DATA + ret );
return( 0 );
}
/*
* Free the components of an RSA key
*/
void mbedtls_rsa_free(mbedtls_rsa_context *ctx)
{
mbedtls_mpi_free(&ctx->D);
mbedtls_mpi_free(&ctx->E);
mbedtls_mpi_free(&ctx->N);
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_free(&ctx->mutex);
#endif
sc_rsa_uninit(&ctx->sc_rsa);
memset(&ctx->sc_ctx, 0, sizeof(sc_rsa_context_t));
}
#endif
#endif /* MBEDTLS_RSA_ALT */ | YifuLiu/AliOS-Things | components/mbedtls/platform/yoc/rsa_alt.c | C | apache-2.0 | 19,560 |
/*
* FIPS-180-1 compliant SHA-1 implementation
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The SHA-1 standard was published by NIST in 1993.
*
* http://www.itl.nist.gov/fipspubs/fip180-1.htm
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_SHA1_C)
#include "mbedtls/sha1.h"
#include <string.h>
#if defined(MBEDTLS_SHA1_ALT)
#if defined(CONFIG_TEE_CRYPTO)
#include "drv/tee.h"
#endif
/* Implementation that should never be optimized out by the compiler */
static void mbedtls_zeroize(void *v, size_t n)
{
volatile unsigned char *p = (unsigned char *)v;
while (n--) {
*p++ = 0;
}
}
void mbedtls_sha1_init(mbedtls_sha1_context *ctx)
{
memset(ctx, 0, sizeof(mbedtls_sha1_context));
sc_sha_init(&ctx->sc_sha, 0);
}
void mbedtls_sha1_free(mbedtls_sha1_context *ctx)
{
if (ctx == NULL) {
return;
}
sc_sha_uninit(&ctx->sc_sha);
mbedtls_zeroize(ctx, sizeof(mbedtls_sha1_context));
}
void mbedtls_sha1_clone(mbedtls_sha1_context *dst, const mbedtls_sha1_context *src)
{
*dst = *src;
}
/*
* SHA-1 context setup
*/
void mbedtls_sha1_starts(mbedtls_sha1_context *ctx)
{
sc_sha_start(&ctx->sc_sha, &ctx->sc_ctx, SHA_MODE_1);
}
void mbedtls_sha1_process(mbedtls_sha1_context *ctx, const unsigned char data[64])
{
(void)ctx;
(void)data;
//TODO
return;
}
/*
* SHA-1 process buffer
*/
void mbedtls_sha1_update(mbedtls_sha1_context *ctx, const unsigned char *input, size_t ilen)
{
if (!ilen) {
return;
}
sc_sha_update(&ctx->sc_sha, &ctx->sc_ctx, input, ilen);
}
/*
* SHA-1 final digest
*/
void mbedtls_sha1_finish(mbedtls_sha1_context *ctx, unsigned char output[20])
{
uint32_t len;
sc_sha_finish(&ctx->sc_sha, &ctx->sc_ctx, output, &len);
}
#endif /* !MBEDTLS_SHA1_ALT */
#endif /* !MBEDTLS_SHA1_C */
| YifuLiu/AliOS-Things | components/mbedtls/platform/yoc/sha1_alt.c | C | apache-2.0 | 2,589 |
/*
* FIPS-180-2 compliant SHA-256 implementation
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
* The SHA-256 Secure Hash Standard was published by NIST in 2002.
*
* http://csrc.nist.gov/publications/fips/fips180-2/fips180-2.pdf
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_SHA256_C)
#include "mbedtls/sha256.h"
#include <string.h>
#if defined(MBEDTLS_SHA256_ALT)
#if defined(CONFIG_TEE_SHA256)
#include "drv/tee.h"
#endif
/* Implementation that should never be optimized out by the compiler */
static void mbedtls_zeroize(void *v, size_t n)
{
volatile unsigned char *p = v;
while (n--) {
*p++ = 0;
}
}
void mbedtls_sha256_init(mbedtls_sha256_context *ctx)
{
memset(ctx, 0, sizeof(mbedtls_sha256_context));
sc_sha_init(&ctx->sc_sha, 0);
}
void mbedtls_sha256_free(mbedtls_sha256_context *ctx)
{
if (ctx == NULL) {
return;
}
sc_sha_uninit(&ctx->sc_sha);
mbedtls_zeroize(ctx, sizeof(mbedtls_sha256_context));
}
void mbedtls_sha256_clone(mbedtls_sha256_context *dst, const mbedtls_sha256_context *src)
{
memcpy(&dst->sc_ctx, &src->sc_ctx, sizeof(sc_sha_context_t));
#if defined(CONFIG_TEE_SHA256)
*dst = *src;
#endif
}
int mbedtls_sha256_starts_ret(mbedtls_sha256_context *ctx, int is224)
{
#if defined(CONFIG_TEE_SHA256)
if (is224) {
csi_tee_sha_start(TEE_SHA224, (void *)ctx);
} else {
csi_tee_sha_start(TEE_SHA256, (void *)ctx);
}
#endif
if (is224) {
sc_sha_start(&ctx->sc_sha, &ctx->sc_ctx, SC_SHA_MODE_224);
} else {
sc_sha_start(&ctx->sc_sha, &ctx->sc_ctx, SC_SHA_MODE_256);
}
return 0;
}
/**
* \brief SHA-256 process buffer
*
* \param ctx SHA-256 context
* \param input buffer holding the data
* \param ilen length of the input data
*/
int mbedtls_sha256_update_ret(mbedtls_sha256_context *ctx, const unsigned char *input, size_t ilen)
{
if (!ilen) {
return 0;
}
#if defined(CONFIG_TEE_SHA256)
csi_tee_sha_update(input, ilen, (void *)ctx);
#endif
sc_sha_update(&ctx->sc_sha, &ctx->sc_ctx, input, ilen);
return 0;
}
/**
* \brief SHA-256 final digest
*
* \param ctx SHA-256 context
* \param output SHA-224/256 checksum result
*/
int mbedtls_sha256_finish_ret(mbedtls_sha256_context *ctx, unsigned char output[32])
{
uint32_t len;
(void)len;
#if defined(CONFIG_TEE_SHA256)
csi_tee_sha_finish(output, (void *)ctx);
#endif
sc_sha_finish(&ctx->sc_sha, &ctx->sc_ctx, output, &len);
return 0;
}
/* Internal use */
void mbedtls_sha256_process(mbedtls_sha256_context *ctx, const unsigned char data[64])
{
(void)ctx;
(void)data;
return;
}
int mbedtls_internal_sha256_process( mbedtls_sha256_context *ctx,
const unsigned char data[64] )
{
(void)ctx;
(void)data;
return 0;
}
#endif /* MBEDTLS_SHA256_ALT */
#endif /* MBEDTLS_SHA256_C */
| YifuLiu/AliOS-Things | components/mbedtls/platform/yoc/sha256_alt.c | C | apache-2.0 | 3,714 |
add_subdirectory(aes)
add_subdirectory(hash)
add_subdirectory(pkey)
add_subdirectory(random)
add_subdirectory(ssl)
add_subdirectory(test)
add_subdirectory(x509)
add_subdirectory(util)
| YifuLiu/AliOS-Things | components/mbedtls/programs/CMakeLists.txt | CMake | apache-2.0 | 184 |
# To compile on SunOS: add "-lsocket -lnsl" to LDFLAGS
# To compile with PKCS11: add "-lpkcs11-helper" to LDFLAGS
CFLAGS ?= -O2
WARNING_CFLAGS ?= -Wall -W -Wdeclaration-after-statement
WARNING_CXXFLAGS ?= -Wall -W
LDFLAGS ?=
LOCAL_CFLAGS = $(WARNING_CFLAGS) -I../include -D_FILE_OFFSET_BITS=64
LOCAL_CXXFLAGS = $(WARNING_CXXFLAGS) -I../include -D_FILE_OFFSET_BITS=64
LOCAL_LDFLAGS = -L../library \
-lmbedtls$(SHARED_SUFFIX) \
-lmbedx509$(SHARED_SUFFIX) \
-lmbedcrypto$(SHARED_SUFFIX)
ifndef SHARED
DEP=../library/libmbedcrypto.a ../library/libmbedx509.a ../library/libmbedtls.a
else
DEP=../library/libmbedcrypto.$(DLEXT) ../library/libmbedx509.$(DLEXT) ../library/libmbedtls.$(DLEXT)
endif
ifdef DEBUG
LOCAL_CFLAGS += -g3
endif
# if we're running on Windows, build for Windows
ifdef WINDOWS
WINDOWS_BUILD=1
endif
ifdef WINDOWS_BUILD
DLEXT=dll
EXEXT=.exe
LOCAL_LDFLAGS += -lws2_32
ifdef SHARED
SHARED_SUFFIX=.$(DLEXT)
endif
else
DLEXT ?= so
EXEXT=
SHARED_SUFFIX=
endif
# Zlib shared library extensions:
ifdef ZLIB
LOCAL_LDFLAGS += -lz
endif
APPS = aes/aescrypt2$(EXEXT) aes/crypt_and_hash$(EXEXT) \
hash/hello$(EXEXT) hash/generic_sum$(EXEXT) \
pkey/dh_client$(EXEXT) \
pkey/dh_genprime$(EXEXT) pkey/dh_server$(EXEXT) \
pkey/ecdh_curve25519$(EXEXT) \
pkey/ecdsa$(EXEXT) pkey/gen_key$(EXEXT) \
pkey/key_app$(EXEXT) pkey/key_app_writer$(EXEXT) \
pkey/mpi_demo$(EXEXT) pkey/pk_decrypt$(EXEXT) \
pkey/pk_encrypt$(EXEXT) pkey/pk_sign$(EXEXT) \
pkey/pk_verify$(EXEXT) pkey/rsa_genkey$(EXEXT) \
pkey/rsa_decrypt$(EXEXT) pkey/rsa_encrypt$(EXEXT) \
pkey/rsa_sign$(EXEXT) pkey/rsa_verify$(EXEXT) \
pkey/rsa_sign_pss$(EXEXT) pkey/rsa_verify_pss$(EXEXT) \
ssl/dtls_client$(EXEXT) ssl/dtls_server$(EXEXT) \
ssl/ssl_client1$(EXEXT) ssl/ssl_client2$(EXEXT) \
ssl/ssl_server$(EXEXT) ssl/ssl_server2$(EXEXT) \
ssl/ssl_fork_server$(EXEXT) ssl/mini_client$(EXEXT) \
ssl/ssl_mail_client$(EXEXT) random/gen_entropy$(EXEXT) \
random/gen_random_havege$(EXEXT) \
random/gen_random_ctr_drbg$(EXEXT) \
test/ssl_cert_test$(EXEXT) test/benchmark$(EXEXT) \
test/selftest$(EXEXT) test/udp_proxy$(EXEXT) \
test/zeroize$(EXEXT) \
util/pem2der$(EXEXT) util/strerror$(EXEXT) \
x509/cert_app$(EXEXT) x509/crl_app$(EXEXT) \
x509/cert_req$(EXEXT) x509/cert_write$(EXEXT) \
x509/req_app$(EXEXT)
ifdef PTHREAD
APPS += ssl/ssl_pthread_server$(EXEXT)
endif
ifdef TEST_CPP
APPS += test/cpp_dummy_build$(EXEXT)
endif
.SILENT:
.PHONY: all clean list
all: $(APPS)
$(DEP):
$(MAKE) -C ../library
aes/aescrypt2$(EXEXT): aes/aescrypt2.c $(DEP)
echo " CC aes/aescrypt2.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) aes/aescrypt2.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
aes/crypt_and_hash$(EXEXT): aes/crypt_and_hash.c $(DEP)
echo " CC aes/crypt_and_hash.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) aes/crypt_and_hash.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
hash/hello$(EXEXT): hash/hello.c $(DEP)
echo " CC hash/hello.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) hash/hello.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
hash/generic_sum$(EXEXT): hash/generic_sum.c $(DEP)
echo " CC hash/generic_sum.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) hash/generic_sum.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/dh_client$(EXEXT): pkey/dh_client.c $(DEP)
echo " CC pkey/dh_client.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/dh_client.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/dh_genprime$(EXEXT): pkey/dh_genprime.c $(DEP)
echo " CC pkey/dh_genprime.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/dh_genprime.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/dh_server$(EXEXT): pkey/dh_server.c $(DEP)
echo " CC pkey/dh_server.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/dh_server.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/ecdh_curve25519$(EXEXT): pkey/ecdh_curve25519.c $(DEP)
echo " CC pkey/ecdh_curve25519.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/ecdh_curve25519.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/ecdsa$(EXEXT): pkey/ecdsa.c $(DEP)
echo " CC pkey/ecdsa.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/ecdsa.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/gen_key$(EXEXT): pkey/gen_key.c $(DEP)
echo " CC pkey/gen_key.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/gen_key.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/key_app$(EXEXT): pkey/key_app.c $(DEP)
echo " CC pkey/key_app.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/key_app.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/key_app_writer$(EXEXT): pkey/key_app_writer.c $(DEP)
echo " CC pkey/key_app_writer.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/key_app_writer.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/mpi_demo$(EXEXT): pkey/mpi_demo.c $(DEP)
echo " CC pkey/mpi_demo.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/mpi_demo.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/pk_decrypt$(EXEXT): pkey/pk_decrypt.c $(DEP)
echo " CC pkey/pk_decrypt.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/pk_decrypt.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/pk_encrypt$(EXEXT): pkey/pk_encrypt.c $(DEP)
echo " CC pkey/pk_encrypt.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/pk_encrypt.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/pk_sign$(EXEXT): pkey/pk_sign.c $(DEP)
echo " CC pkey/pk_sign.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/pk_sign.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/pk_verify$(EXEXT): pkey/pk_verify.c $(DEP)
echo " CC pkey/pk_verify.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/pk_verify.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/rsa_genkey$(EXEXT): pkey/rsa_genkey.c $(DEP)
echo " CC pkey/rsa_genkey.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/rsa_genkey.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/rsa_sign$(EXEXT): pkey/rsa_sign.c $(DEP)
echo " CC pkey/rsa_sign.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/rsa_sign.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/rsa_verify$(EXEXT): pkey/rsa_verify.c $(DEP)
echo " CC pkey/rsa_verify.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/rsa_verify.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/rsa_sign_pss$(EXEXT): pkey/rsa_sign_pss.c $(DEP)
echo " CC pkey/rsa_sign_pss.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/rsa_sign_pss.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/rsa_verify_pss$(EXEXT): pkey/rsa_verify_pss.c $(DEP)
echo " CC pkey/rsa_verify_pss.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/rsa_verify_pss.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/rsa_decrypt$(EXEXT): pkey/rsa_decrypt.c $(DEP)
echo " CC pkey/rsa_decrypt.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/rsa_decrypt.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
pkey/rsa_encrypt$(EXEXT): pkey/rsa_encrypt.c $(DEP)
echo " CC pkey/rsa_encrypt.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) pkey/rsa_encrypt.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
random/gen_entropy$(EXEXT): random/gen_entropy.c $(DEP)
echo " CC random/gen_entropy.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) random/gen_entropy.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
random/gen_random_havege$(EXEXT): random/gen_random_havege.c $(DEP)
echo " CC random/gen_random_havege.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) random/gen_random_havege.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
random/gen_random_ctr_drbg$(EXEXT): random/gen_random_ctr_drbg.c $(DEP)
echo " CC random/gen_random_ctr_drbg.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) random/gen_random_ctr_drbg.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
ssl/dtls_client$(EXEXT): ssl/dtls_client.c $(DEP)
echo " CC ssl/dtls_client.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/dtls_client.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
ssl/dtls_server$(EXEXT): ssl/dtls_server.c $(DEP)
echo " CC ssl/dtls_server.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/dtls_server.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
ssl/ssl_client1$(EXEXT): ssl/ssl_client1.c $(DEP)
echo " CC ssl/ssl_client1.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/ssl_client1.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
ssl/ssl_client2$(EXEXT): ssl/ssl_client2.c $(DEP)
echo " CC ssl/ssl_client2.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/ssl_client2.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
ssl/ssl_server$(EXEXT): ssl/ssl_server.c $(DEP)
echo " CC ssl/ssl_server.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/ssl_server.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
ssl/ssl_server2$(EXEXT): ssl/ssl_server2.c $(DEP)
echo " CC ssl/ssl_server2.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/ssl_server2.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
ssl/ssl_fork_server$(EXEXT): ssl/ssl_fork_server.c $(DEP)
echo " CC ssl/ssl_fork_server.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/ssl_fork_server.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
ssl/ssl_pthread_server$(EXEXT): ssl/ssl_pthread_server.c $(DEP)
echo " CC ssl/ssl_pthread_server.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/ssl_pthread_server.c $(LOCAL_LDFLAGS) -lpthread $(LDFLAGS) -o $@
ssl/ssl_mail_client$(EXEXT): ssl/ssl_mail_client.c $(DEP)
echo " CC ssl/ssl_mail_client.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/ssl_mail_client.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
ssl/mini_client$(EXEXT): ssl/mini_client.c $(DEP)
echo " CC ssl/mini_client.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) ssl/mini_client.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
test/ssl_cert_test$(EXEXT): test/ssl_cert_test.c $(DEP)
echo " CC test/ssl_cert_test.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) test/ssl_cert_test.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
test/benchmark$(EXEXT): test/benchmark.c $(DEP)
echo " CC test/benchmark.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) test/benchmark.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
test/cpp_dummy_build$(EXEXT): test/cpp_dummy_build.cpp $(DEP)
echo " CXX test/cpp_dummy_build.cpp"
$(CXX) $(LOCAL_CXXFLAGS) $(CXXFLAGS) test/cpp_dummy_build.cpp $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
test/selftest$(EXEXT): test/selftest.c $(DEP)
echo " CC test/selftest.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) test/selftest.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
test/udp_proxy$(EXEXT): test/udp_proxy.c $(DEP)
echo " CC test/udp_proxy.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) test/udp_proxy.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
test/zeroize$(EXEXT): test/zeroize.c $(DEP)
echo " CC test/zeroize.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) test/zeroize.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
util/pem2der$(EXEXT): util/pem2der.c $(DEP)
echo " CC util/pem2der.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) util/pem2der.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
util/strerror$(EXEXT): util/strerror.c $(DEP)
echo " CC util/strerror.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) util/strerror.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
x509/cert_app$(EXEXT): x509/cert_app.c $(DEP)
echo " CC x509/cert_app.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) x509/cert_app.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
x509/cert_write$(EXEXT): x509/cert_write.c $(DEP)
echo " CC x509/cert_write.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) x509/cert_write.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
x509/crl_app$(EXEXT): x509/crl_app.c $(DEP)
echo " CC x509/crl_app.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) x509/crl_app.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
x509/cert_req$(EXEXT): x509/cert_req.c $(DEP)
echo " CC x509/cert_req.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) x509/cert_req.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
x509/req_app$(EXEXT): x509/req_app.c $(DEP)
echo " CC x509/req_app.c"
$(CC) $(LOCAL_CFLAGS) $(CFLAGS) x509/req_app.c $(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
clean:
ifndef WINDOWS
rm -f $(APPS)
else
del /S /Q /F *.o *.exe
endif
list:
echo $(APPS)
| YifuLiu/AliOS-Things | components/mbedtls/programs/Makefile | Makefile | apache-2.0 | 11,340 |
add_executable(aescrypt2 aescrypt2.c)
target_link_libraries(aescrypt2 mbedtls)
add_executable(crypt_and_hash crypt_and_hash.c)
target_link_libraries(crypt_and_hash mbedtls)
install(TARGETS aescrypt2 crypt_and_hash
DESTINATION "bin"
PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
| YifuLiu/AliOS-Things | components/mbedtls/programs/aes/CMakeLists.txt | CMake | apache-2.0 | 350 |
/*
* AES-256 file encryption program
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/* Enable definition of fileno() even when compiling with -std=c99. Must be
* set before config.h, which pulls in glibc's features.h indirectly.
* Harmless on other platforms. */
#define _POSIX_C_SOURCE 1
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_fprintf fprintf
#define mbedtls_printf printf
#define mbedtls_exit exit
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif /* MBEDTLS_PLATFORM_C */
#include "mbedtls/aes.h"
#include "mbedtls/md.h"
#include "mbedtls/platform_util.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if defined(_WIN32)
#include <windows.h>
#if !defined(_WIN32_WCE)
#include <io.h>
#endif
#else
#include <sys/types.h>
#include <unistd.h>
#endif
#define MODE_ENCRYPT 0
#define MODE_DECRYPT 1
#define USAGE \
"\n aescrypt2 <mode> <input filename> <output filename> <key>\n" \
"\n <mode>: 0 = encrypt, 1 = decrypt\n" \
"\n example: aescrypt2 0 file file.aes hex:E76B2413958B00E193\n" \
"\n"
#if !defined(MBEDTLS_AES_C) || !defined(MBEDTLS_SHA256_C) || \
!defined(MBEDTLS_FS_IO) || !defined(MBEDTLS_MD_C)
int main( void )
{
mbedtls_printf("MBEDTLS_AES_C and/or MBEDTLS_SHA256_C "
"and/or MBEDTLS_FS_IO and/or MBEDTLS_MD_C "
"not defined.\n");
return( 0 );
}
#else
#if defined(MBEDTLS_CHECK_PARAMS)
#include "mbedtls/platform_util.h"
void mbedtls_param_failed( const char *failure_condition,
const char *file,
int line )
{
mbedtls_printf( "%s:%i: Input param failed - %s\n",
file, line, failure_condition );
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
}
#endif
int main( int argc, char *argv[] )
{
int ret = 0;
int exit_code = MBEDTLS_EXIT_FAILURE;
unsigned int i, n;
int mode, lastn;
size_t keylen;
FILE *fkey, *fin = NULL, *fout = NULL;
char *p;
unsigned char IV[16];
unsigned char tmp[16];
unsigned char key[512];
unsigned char digest[32];
unsigned char buffer[1024];
unsigned char diff;
mbedtls_aes_context aes_ctx;
mbedtls_md_context_t sha_ctx;
#if defined(_WIN32_WCE)
long filesize, offset;
#elif defined(_WIN32)
LARGE_INTEGER li_size;
__int64 filesize, offset;
#else
off_t filesize, offset;
#endif
mbedtls_aes_init( &aes_ctx );
mbedtls_md_init( &sha_ctx );
ret = mbedtls_md_setup( &sha_ctx, mbedtls_md_info_from_type( MBEDTLS_MD_SHA256 ), 1 );
if( ret != 0 )
{
mbedtls_printf( " ! mbedtls_md_setup() returned -0x%04x\n", -ret );
goto exit;
}
/*
* Parse the command-line arguments.
*/
if( argc != 5 )
{
mbedtls_printf( USAGE );
#if defined(_WIN32)
mbedtls_printf( "\n Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
goto exit;
}
mode = atoi( argv[1] );
memset( IV, 0, sizeof( IV ) );
memset( key, 0, sizeof( key ) );
memset( digest, 0, sizeof( digest ) );
memset( buffer, 0, sizeof( buffer ) );
if( mode != MODE_ENCRYPT && mode != MODE_DECRYPT )
{
mbedtls_fprintf( stderr, "invalide operation mode\n" );
goto exit;
}
if( strcmp( argv[2], argv[3] ) == 0 )
{
mbedtls_fprintf( stderr, "input and output filenames must differ\n" );
goto exit;
}
if( ( fin = fopen( argv[2], "rb" ) ) == NULL )
{
mbedtls_fprintf( stderr, "fopen(%s,rb) failed\n", argv[2] );
goto exit;
}
if( ( fout = fopen( argv[3], "wb+" ) ) == NULL )
{
mbedtls_fprintf( stderr, "fopen(%s,wb+) failed\n", argv[3] );
goto exit;
}
/*
* Read the secret key from file or command line
*/
if( ( fkey = fopen( argv[4], "rb" ) ) != NULL )
{
keylen = fread( key, 1, sizeof( key ), fkey );
fclose( fkey );
}
else
{
if( memcmp( argv[4], "hex:", 4 ) == 0 )
{
p = &argv[4][4];
keylen = 0;
while( sscanf( p, "%02X", &n ) > 0 &&
keylen < (int) sizeof( key ) )
{
key[keylen++] = (unsigned char) n;
p += 2;
}
}
else
{
keylen = strlen( argv[4] );
if( keylen > (int) sizeof( key ) )
keylen = (int) sizeof( key );
memcpy( key, argv[4], keylen );
}
}
#if defined(_WIN32_WCE)
filesize = fseek( fin, 0L, SEEK_END );
#else
#if defined(_WIN32)
/*
* Support large files (> 2Gb) on Win32
*/
li_size.QuadPart = 0;
li_size.LowPart =
SetFilePointer( (HANDLE) _get_osfhandle( _fileno( fin ) ),
li_size.LowPart, &li_size.HighPart, FILE_END );
if( li_size.LowPart == 0xFFFFFFFF && GetLastError() != NO_ERROR )
{
mbedtls_fprintf( stderr, "SetFilePointer(0,FILE_END) failed\n" );
goto exit;
}
filesize = li_size.QuadPart;
#else
if( ( filesize = lseek( fileno( fin ), 0, SEEK_END ) ) < 0 )
{
perror( "lseek" );
goto exit;
}
#endif
#endif
if( fseek( fin, 0, SEEK_SET ) < 0 )
{
mbedtls_fprintf( stderr, "fseek(0,SEEK_SET) failed\n" );
goto exit;
}
if( mode == MODE_ENCRYPT )
{
/*
* Generate the initialization vector as:
* IV = SHA-256( filesize || filename )[0..15]
*/
for( i = 0; i < 8; i++ )
buffer[i] = (unsigned char)( filesize >> ( i << 3 ) );
p = argv[2];
mbedtls_md_starts( &sha_ctx );
mbedtls_md_update( &sha_ctx, buffer, 8 );
mbedtls_md_update( &sha_ctx, (unsigned char *) p, strlen( p ) );
mbedtls_md_finish( &sha_ctx, digest );
memcpy( IV, digest, 16 );
/*
* The last four bits in the IV are actually used
* to store the file size modulo the AES block size.
*/
lastn = (int)( filesize & 0x0F );
IV[15] = (unsigned char)
( ( IV[15] & 0xF0 ) | lastn );
/*
* Append the IV at the beginning of the output.
*/
if( fwrite( IV, 1, 16, fout ) != 16 )
{
mbedtls_fprintf( stderr, "fwrite(%d bytes) failed\n", 16 );
goto exit;
}
/*
* Hash the IV and the secret key together 8192 times
* using the result to setup the AES context and HMAC.
*/
memset( digest, 0, 32 );
memcpy( digest, IV, 16 );
for( i = 0; i < 8192; i++ )
{
mbedtls_md_starts( &sha_ctx );
mbedtls_md_update( &sha_ctx, digest, 32 );
mbedtls_md_update( &sha_ctx, key, keylen );
mbedtls_md_finish( &sha_ctx, digest );
}
mbedtls_aes_setkey_enc( &aes_ctx, digest, 256 );
mbedtls_md_hmac_starts( &sha_ctx, digest, 32 );
/*
* Encrypt and write the ciphertext.
*/
for( offset = 0; offset < filesize; offset += 16 )
{
n = ( filesize - offset > 16 ) ? 16 : (int)
( filesize - offset );
if( fread( buffer, 1, n, fin ) != (size_t) n )
{
mbedtls_fprintf( stderr, "fread(%d bytes) failed\n", n );
goto exit;
}
for( i = 0; i < 16; i++ )
buffer[i] = (unsigned char)( buffer[i] ^ IV[i] );
mbedtls_aes_crypt_ecb( &aes_ctx, MBEDTLS_AES_ENCRYPT, buffer, buffer );
mbedtls_md_hmac_update( &sha_ctx, buffer, 16 );
if( fwrite( buffer, 1, 16, fout ) != 16 )
{
mbedtls_fprintf( stderr, "fwrite(%d bytes) failed\n", 16 );
goto exit;
}
memcpy( IV, buffer, 16 );
}
/*
* Finally write the HMAC.
*/
mbedtls_md_hmac_finish( &sha_ctx, digest );
if( fwrite( digest, 1, 32, fout ) != 32 )
{
mbedtls_fprintf( stderr, "fwrite(%d bytes) failed\n", 16 );
goto exit;
}
}
if( mode == MODE_DECRYPT )
{
/*
* The encrypted file must be structured as follows:
*
* 00 .. 15 Initialization Vector
* 16 .. 31 AES Encrypted Block #1
* ..
* N*16 .. (N+1)*16 - 1 AES Encrypted Block #N
* (N+1)*16 .. (N+1)*16 + 32 HMAC-SHA-256(ciphertext)
*/
if( filesize < 48 )
{
mbedtls_fprintf( stderr, "File too short to be encrypted.\n" );
goto exit;
}
if( ( filesize & 0x0F ) != 0 )
{
mbedtls_fprintf( stderr, "File size not a multiple of 16.\n" );
goto exit;
}
/*
* Subtract the IV + HMAC length.
*/
filesize -= ( 16 + 32 );
/*
* Read the IV and original filesize modulo 16.
*/
if( fread( buffer, 1, 16, fin ) != 16 )
{
mbedtls_fprintf( stderr, "fread(%d bytes) failed\n", 16 );
goto exit;
}
memcpy( IV, buffer, 16 );
lastn = IV[15] & 0x0F;
/*
* Hash the IV and the secret key together 8192 times
* using the result to setup the AES context and HMAC.
*/
memset( digest, 0, 32 );
memcpy( digest, IV, 16 );
for( i = 0; i < 8192; i++ )
{
mbedtls_md_starts( &sha_ctx );
mbedtls_md_update( &sha_ctx, digest, 32 );
mbedtls_md_update( &sha_ctx, key, keylen );
mbedtls_md_finish( &sha_ctx, digest );
}
mbedtls_aes_setkey_dec( &aes_ctx, digest, 256 );
mbedtls_md_hmac_starts( &sha_ctx, digest, 32 );
/*
* Decrypt and write the plaintext.
*/
for( offset = 0; offset < filesize; offset += 16 )
{
if( fread( buffer, 1, 16, fin ) != 16 )
{
mbedtls_fprintf( stderr, "fread(%d bytes) failed\n", 16 );
goto exit;
}
memcpy( tmp, buffer, 16 );
mbedtls_md_hmac_update( &sha_ctx, buffer, 16 );
mbedtls_aes_crypt_ecb( &aes_ctx, MBEDTLS_AES_DECRYPT, buffer, buffer );
for( i = 0; i < 16; i++ )
buffer[i] = (unsigned char)( buffer[i] ^ IV[i] );
memcpy( IV, tmp, 16 );
n = ( lastn > 0 && offset == filesize - 16 )
? lastn : 16;
if( fwrite( buffer, 1, n, fout ) != (size_t) n )
{
mbedtls_fprintf( stderr, "fwrite(%d bytes) failed\n", n );
goto exit;
}
}
/*
* Verify the message authentication code.
*/
mbedtls_md_hmac_finish( &sha_ctx, digest );
if( fread( buffer, 1, 32, fin ) != 32 )
{
mbedtls_fprintf( stderr, "fread(%d bytes) failed\n", 32 );
goto exit;
}
/* Use constant-time buffer comparison */
diff = 0;
for( i = 0; i < 32; i++ )
diff |= digest[i] ^ buffer[i];
if( diff != 0 )
{
mbedtls_fprintf( stderr, "HMAC check failed: wrong key, "
"or file corrupted.\n" );
goto exit;
}
}
exit_code = MBEDTLS_EXIT_SUCCESS;
exit:
if( fin )
fclose( fin );
if( fout )
fclose( fout );
/* Zeroize all command line arguments to also cover
the case when the user has missed or reordered some,
in which case the key might not be in argv[4]. */
for( i = 0; i < (unsigned int) argc; i++ )
mbedtls_platform_zeroize( argv[i], strlen( argv[i] ) );
mbedtls_platform_zeroize( IV, sizeof( IV ) );
mbedtls_platform_zeroize( key, sizeof( key ) );
mbedtls_platform_zeroize( tmp, sizeof( tmp ) );
mbedtls_platform_zeroize( buffer, sizeof( buffer ) );
mbedtls_platform_zeroize( digest, sizeof( digest ) );
mbedtls_aes_free( &aes_ctx );
mbedtls_md_free( &sha_ctx );
return( exit_code );
}
#endif /* MBEDTLS_AES_C && MBEDTLS_SHA256_C && MBEDTLS_FS_IO */
| YifuLiu/AliOS-Things | components/mbedtls/programs/aes/aescrypt2.c | C | apache-2.0 | 13,247 |
/*
* \brief Generic file encryption program using generic wrappers for configured
* security.
*
* Copyright (C) 2006-2016, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/* Enable definition of fileno() even when compiling with -std=c99. Must be
* set before config.h, which pulls in glibc's features.h indirectly.
* Harmless on other platforms. */
#define _POSIX_C_SOURCE 1
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_fprintf fprintf
#define mbedtls_printf printf
#define mbedtls_exit exit
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif /* MBEDTLS_PLATFORM_C */
#if defined(MBEDTLS_CIPHER_C) && defined(MBEDTLS_MD_C) && \
defined(MBEDTLS_FS_IO)
#include "mbedtls/cipher.h"
#include "mbedtls/md.h"
#include "mbedtls/platform_util.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#endif
#if defined(_WIN32)
#include <windows.h>
#if !defined(_WIN32_WCE)
#include <io.h>
#endif
#else
#include <sys/types.h>
#include <unistd.h>
#endif
#define MODE_ENCRYPT 0
#define MODE_DECRYPT 1
#define USAGE \
"\n crypt_and_hash <mode> <input filename> <output filename> <cipher> <mbedtls_md> <key>\n" \
"\n <mode>: 0 = encrypt, 1 = decrypt\n" \
"\n example: crypt_and_hash 0 file file.aes AES-128-CBC SHA1 hex:E76B2413958B00E193\n" \
"\n"
#if !defined(MBEDTLS_CIPHER_C) || !defined(MBEDTLS_MD_C) || \
!defined(MBEDTLS_FS_IO)
int main( void )
{
mbedtls_printf("MBEDTLS_CIPHER_C and/or MBEDTLS_MD_C and/or MBEDTLS_FS_IO not defined.\n");
return( 0 );
}
#else
#if defined(MBEDTLS_CHECK_PARAMS)
#include "mbedtls/platform_util.h"
void mbedtls_param_failed( const char *failure_condition,
const char *file,
int line )
{
mbedtls_printf( "%s:%i: Input param failed - %s\n",
file, line, failure_condition );
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
}
#endif
int main( int argc, char *argv[] )
{
int ret = 1, i, n;
int exit_code = MBEDTLS_EXIT_FAILURE;
int mode;
size_t keylen, ilen, olen;
FILE *fkey, *fin = NULL, *fout = NULL;
char *p;
unsigned char IV[16];
unsigned char key[512];
unsigned char digest[MBEDTLS_MD_MAX_SIZE];
unsigned char buffer[1024];
unsigned char output[1024];
unsigned char diff;
const mbedtls_cipher_info_t *cipher_info;
const mbedtls_md_info_t *md_info;
mbedtls_cipher_context_t cipher_ctx;
mbedtls_md_context_t md_ctx;
#if defined(_WIN32_WCE)
long filesize, offset;
#elif defined(_WIN32)
LARGE_INTEGER li_size;
__int64 filesize, offset;
#else
off_t filesize, offset;
#endif
mbedtls_cipher_init( &cipher_ctx );
mbedtls_md_init( &md_ctx );
/*
* Parse the command-line arguments.
*/
if( argc != 7 )
{
const int *list;
mbedtls_printf( USAGE );
mbedtls_printf( "Available ciphers:\n" );
list = mbedtls_cipher_list();
while( *list )
{
cipher_info = mbedtls_cipher_info_from_type( *list );
mbedtls_printf( " %s\n", cipher_info->name );
list++;
}
mbedtls_printf( "\nAvailable message digests:\n" );
list = mbedtls_md_list();
while( *list )
{
md_info = mbedtls_md_info_from_type( *list );
mbedtls_printf( " %s\n", mbedtls_md_get_name( md_info ) );
list++;
}
#if defined(_WIN32)
mbedtls_printf( "\n Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
goto exit;
}
mode = atoi( argv[1] );
if( mode != MODE_ENCRYPT && mode != MODE_DECRYPT )
{
mbedtls_fprintf( stderr, "invalid operation mode\n" );
goto exit;
}
if( strcmp( argv[2], argv[3] ) == 0 )
{
mbedtls_fprintf( stderr, "input and output filenames must differ\n" );
goto exit;
}
if( ( fin = fopen( argv[2], "rb" ) ) == NULL )
{
mbedtls_fprintf( stderr, "fopen(%s,rb) failed\n", argv[2] );
goto exit;
}
if( ( fout = fopen( argv[3], "wb+" ) ) == NULL )
{
mbedtls_fprintf( stderr, "fopen(%s,wb+) failed\n", argv[3] );
goto exit;
}
/*
* Read the Cipher and MD from the command line
*/
cipher_info = mbedtls_cipher_info_from_string( argv[4] );
if( cipher_info == NULL )
{
mbedtls_fprintf( stderr, "Cipher '%s' not found\n", argv[4] );
goto exit;
}
if( ( ret = mbedtls_cipher_setup( &cipher_ctx, cipher_info) ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_setup failed\n" );
goto exit;
}
md_info = mbedtls_md_info_from_string( argv[5] );
if( md_info == NULL )
{
mbedtls_fprintf( stderr, "Message Digest '%s' not found\n", argv[5] );
goto exit;
}
if( mbedtls_md_setup( &md_ctx, md_info, 1 ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_md_setup failed\n" );
goto exit;
}
/*
* Read the secret key from file or command line
*/
if( ( fkey = fopen( argv[6], "rb" ) ) != NULL )
{
keylen = fread( key, 1, sizeof( key ), fkey );
fclose( fkey );
}
else
{
if( memcmp( argv[6], "hex:", 4 ) == 0 )
{
p = &argv[6][4];
keylen = 0;
while( sscanf( p, "%02X", &n ) > 0 &&
keylen < (int) sizeof( key ) )
{
key[keylen++] = (unsigned char) n;
p += 2;
}
}
else
{
keylen = strlen( argv[6] );
if( keylen > (int) sizeof( key ) )
keylen = (int) sizeof( key );
memcpy( key, argv[6], keylen );
}
}
#if defined(_WIN32_WCE)
filesize = fseek( fin, 0L, SEEK_END );
#else
#if defined(_WIN32)
/*
* Support large files (> 2Gb) on Win32
*/
li_size.QuadPart = 0;
li_size.LowPart =
SetFilePointer( (HANDLE) _get_osfhandle( _fileno( fin ) ),
li_size.LowPart, &li_size.HighPart, FILE_END );
if( li_size.LowPart == 0xFFFFFFFF && GetLastError() != NO_ERROR )
{
mbedtls_fprintf( stderr, "SetFilePointer(0,FILE_END) failed\n" );
goto exit;
}
filesize = li_size.QuadPart;
#else
if( ( filesize = lseek( fileno( fin ), 0, SEEK_END ) ) < 0 )
{
perror( "lseek" );
goto exit;
}
#endif
#endif
if( fseek( fin, 0, SEEK_SET ) < 0 )
{
mbedtls_fprintf( stderr, "fseek(0,SEEK_SET) failed\n" );
goto exit;
}
if( mode == MODE_ENCRYPT )
{
/*
* Generate the initialization vector as:
* IV = MD( filesize || filename )[0..15]
*/
for( i = 0; i < 8; i++ )
buffer[i] = (unsigned char)( filesize >> ( i << 3 ) );
p = argv[2];
mbedtls_md_starts( &md_ctx );
mbedtls_md_update( &md_ctx, buffer, 8 );
mbedtls_md_update( &md_ctx, (unsigned char *) p, strlen( p ) );
mbedtls_md_finish( &md_ctx, digest );
memcpy( IV, digest, 16 );
/*
* Append the IV at the beginning of the output.
*/
if( fwrite( IV, 1, 16, fout ) != 16 )
{
mbedtls_fprintf( stderr, "fwrite(%d bytes) failed\n", 16 );
goto exit;
}
/*
* Hash the IV and the secret key together 8192 times
* using the result to setup the AES context and HMAC.
*/
memset( digest, 0, 32 );
memcpy( digest, IV, 16 );
for( i = 0; i < 8192; i++ )
{
mbedtls_md_starts( &md_ctx );
mbedtls_md_update( &md_ctx, digest, 32 );
mbedtls_md_update( &md_ctx, key, keylen );
mbedtls_md_finish( &md_ctx, digest );
}
if( mbedtls_cipher_setkey( &cipher_ctx, digest, cipher_info->key_bitlen,
MBEDTLS_ENCRYPT ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_setkey() returned error\n");
goto exit;
}
if( mbedtls_cipher_set_iv( &cipher_ctx, IV, 16 ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_set_iv() returned error\n");
goto exit;
}
if( mbedtls_cipher_reset( &cipher_ctx ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_reset() returned error\n");
goto exit;
}
mbedtls_md_hmac_starts( &md_ctx, digest, 32 );
/*
* Encrypt and write the ciphertext.
*/
for( offset = 0; offset < filesize; offset += mbedtls_cipher_get_block_size( &cipher_ctx ) )
{
ilen = ( (unsigned int) filesize - offset > mbedtls_cipher_get_block_size( &cipher_ctx ) ) ?
mbedtls_cipher_get_block_size( &cipher_ctx ) : (unsigned int) ( filesize - offset );
if( fread( buffer, 1, ilen, fin ) != ilen )
{
mbedtls_fprintf( stderr, "fread(%ld bytes) failed\n", (long) ilen );
goto exit;
}
if( mbedtls_cipher_update( &cipher_ctx, buffer, ilen, output, &olen ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_update() returned error\n");
goto exit;
}
mbedtls_md_hmac_update( &md_ctx, output, olen );
if( fwrite( output, 1, olen, fout ) != olen )
{
mbedtls_fprintf( stderr, "fwrite(%ld bytes) failed\n", (long) olen );
goto exit;
}
}
if( mbedtls_cipher_finish( &cipher_ctx, output, &olen ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_finish() returned error\n" );
goto exit;
}
mbedtls_md_hmac_update( &md_ctx, output, olen );
if( fwrite( output, 1, olen, fout ) != olen )
{
mbedtls_fprintf( stderr, "fwrite(%ld bytes) failed\n", (long) olen );
goto exit;
}
/*
* Finally write the HMAC.
*/
mbedtls_md_hmac_finish( &md_ctx, digest );
if( fwrite( digest, 1, mbedtls_md_get_size( md_info ), fout ) != mbedtls_md_get_size( md_info ) )
{
mbedtls_fprintf( stderr, "fwrite(%d bytes) failed\n", mbedtls_md_get_size( md_info ) );
goto exit;
}
}
if( mode == MODE_DECRYPT )
{
/*
* The encrypted file must be structured as follows:
*
* 00 .. 15 Initialization Vector
* 16 .. 31 Encrypted Block #1
* ..
* N*16 .. (N+1)*16 - 1 Encrypted Block #N
* (N+1)*16 .. (N+1)*16 + n Hash(ciphertext)
*/
if( filesize < 16 + mbedtls_md_get_size( md_info ) )
{
mbedtls_fprintf( stderr, "File too short to be encrypted.\n" );
goto exit;
}
if( mbedtls_cipher_get_block_size( &cipher_ctx ) == 0 )
{
mbedtls_fprintf( stderr, "Invalid cipher block size: 0. \n" );
goto exit;
}
/*
* Check the file size.
*/
if( cipher_info->mode != MBEDTLS_MODE_GCM &&
( ( filesize - mbedtls_md_get_size( md_info ) ) %
mbedtls_cipher_get_block_size( &cipher_ctx ) ) != 0 )
{
mbedtls_fprintf( stderr, "File content not a multiple of the block size (%d).\n",
mbedtls_cipher_get_block_size( &cipher_ctx ));
goto exit;
}
/*
* Subtract the IV + HMAC length.
*/
filesize -= ( 16 + mbedtls_md_get_size( md_info ) );
/*
* Read the IV and original filesize modulo 16.
*/
if( fread( buffer, 1, 16, fin ) != 16 )
{
mbedtls_fprintf( stderr, "fread(%d bytes) failed\n", 16 );
goto exit;
}
memcpy( IV, buffer, 16 );
/*
* Hash the IV and the secret key together 8192 times
* using the result to setup the AES context and HMAC.
*/
memset( digest, 0, 32 );
memcpy( digest, IV, 16 );
for( i = 0; i < 8192; i++ )
{
mbedtls_md_starts( &md_ctx );
mbedtls_md_update( &md_ctx, digest, 32 );
mbedtls_md_update( &md_ctx, key, keylen );
mbedtls_md_finish( &md_ctx, digest );
}
if( mbedtls_cipher_setkey( &cipher_ctx, digest, cipher_info->key_bitlen,
MBEDTLS_DECRYPT ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_setkey() returned error\n" );
goto exit;
}
if( mbedtls_cipher_set_iv( &cipher_ctx, IV, 16 ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_set_iv() returned error\n" );
goto exit;
}
if( mbedtls_cipher_reset( &cipher_ctx ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_reset() returned error\n" );
goto exit;
}
mbedtls_md_hmac_starts( &md_ctx, digest, 32 );
/*
* Decrypt and write the plaintext.
*/
for( offset = 0; offset < filesize; offset += mbedtls_cipher_get_block_size( &cipher_ctx ) )
{
ilen = ( (unsigned int) filesize - offset > mbedtls_cipher_get_block_size( &cipher_ctx ) ) ?
mbedtls_cipher_get_block_size( &cipher_ctx ) : (unsigned int) ( filesize - offset );
if( fread( buffer, 1, ilen, fin ) != ilen )
{
mbedtls_fprintf( stderr, "fread(%d bytes) failed\n",
mbedtls_cipher_get_block_size( &cipher_ctx ) );
goto exit;
}
mbedtls_md_hmac_update( &md_ctx, buffer, ilen );
if( mbedtls_cipher_update( &cipher_ctx, buffer, ilen, output,
&olen ) != 0 )
{
mbedtls_fprintf( stderr, "mbedtls_cipher_update() returned error\n" );
goto exit;
}
if( fwrite( output, 1, olen, fout ) != olen )
{
mbedtls_fprintf( stderr, "fwrite(%ld bytes) failed\n", (long) olen );
goto exit;
}
}
/*
* Verify the message authentication code.
*/
mbedtls_md_hmac_finish( &md_ctx, digest );
if( fread( buffer, 1, mbedtls_md_get_size( md_info ), fin ) != mbedtls_md_get_size( md_info ) )
{
mbedtls_fprintf( stderr, "fread(%d bytes) failed\n", mbedtls_md_get_size( md_info ) );
goto exit;
}
/* Use constant-time buffer comparison */
diff = 0;
for( i = 0; i < mbedtls_md_get_size( md_info ); i++ )
diff |= digest[i] ^ buffer[i];
if( diff != 0 )
{
mbedtls_fprintf( stderr, "HMAC check failed: wrong key, "
"or file corrupted.\n" );
goto exit;
}
/*
* Write the final block of data
*/
mbedtls_cipher_finish( &cipher_ctx, output, &olen );
if( fwrite( output, 1, olen, fout ) != olen )
{
mbedtls_fprintf( stderr, "fwrite(%ld bytes) failed\n", (long) olen );
goto exit;
}
}
exit_code = MBEDTLS_EXIT_SUCCESS;
exit:
if( fin )
fclose( fin );
if( fout )
fclose( fout );
/* Zeroize all command line arguments to also cover
the case when the user has missed or reordered some,
in which case the key might not be in argv[6]. */
for( i = 0; i < argc; i++ )
mbedtls_platform_zeroize( argv[i], strlen( argv[i] ) );
mbedtls_platform_zeroize( IV, sizeof( IV ) );
mbedtls_platform_zeroize( key, sizeof( key ) );
mbedtls_platform_zeroize( buffer, sizeof( buffer ) );
mbedtls_platform_zeroize( output, sizeof( output ) );
mbedtls_platform_zeroize( digest, sizeof( digest ) );
mbedtls_cipher_free( &cipher_ctx );
mbedtls_md_free( &md_ctx );
return( exit_code );
}
#endif /* MBEDTLS_CIPHER_C && MBEDTLS_MD_C && MBEDTLS_FS_IO */
| YifuLiu/AliOS-Things | components/mbedtls/programs/aes/crypt_and_hash.c | C | apache-2.0 | 17,145 |
add_executable(hello hello.c)
target_link_libraries(hello mbedtls)
add_executable(generic_sum generic_sum.c)
target_link_libraries(generic_sum mbedtls)
install(TARGETS hello generic_sum
DESTINATION "bin"
PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
| YifuLiu/AliOS-Things | components/mbedtls/programs/hash/CMakeLists.txt | CMake | apache-2.0 | 322 |
/*
* generic message digest layer demonstration program
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_fprintf fprintf
#define mbedtls_printf printf
#define mbedtls_exit exit
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif /* MBEDTLS_PLATFORM_C */
#if defined(MBEDTLS_MD_C) && defined(MBEDTLS_FS_IO)
#include "mbedtls/md.h"
#include <stdio.h>
#include <string.h>
#endif
#if !defined(MBEDTLS_MD_C) || !defined(MBEDTLS_FS_IO)
int main( void )
{
mbedtls_printf("MBEDTLS_MD_C and/or MBEDTLS_FS_IO not defined.\n");
return( 0 );
}
#else
#if defined(MBEDTLS_CHECK_PARAMS)
#include "mbedtls/platform_util.h"
void mbedtls_param_failed( const char *failure_condition,
const char *file,
int line )
{
mbedtls_printf( "%s:%i: Input param failed - %s\n",
file, line, failure_condition );
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
}
#endif
static int generic_wrapper( const mbedtls_md_info_t *md_info, char *filename, unsigned char *sum )
{
int ret = mbedtls_md_file( md_info, filename, sum );
if( ret == 1 )
mbedtls_fprintf( stderr, "failed to open: %s\n", filename );
if( ret == 2 )
mbedtls_fprintf( stderr, "failed to read: %s\n", filename );
return( ret );
}
static int generic_print( const mbedtls_md_info_t *md_info, char *filename )
{
int i;
unsigned char sum[MBEDTLS_MD_MAX_SIZE];
if( generic_wrapper( md_info, filename, sum ) != 0 )
return( 1 );
for( i = 0; i < mbedtls_md_get_size( md_info ); i++ )
mbedtls_printf( "%02x", sum[i] );
mbedtls_printf( " %s\n", filename );
return( 0 );
}
static int generic_check( const mbedtls_md_info_t *md_info, char *filename )
{
int i;
size_t n;
FILE *f;
int nb_err1, nb_err2;
int nb_tot1, nb_tot2;
unsigned char sum[MBEDTLS_MD_MAX_SIZE];
char line[1024];
char diff;
#if defined(__clang_analyzer__)
char buf[MBEDTLS_MD_MAX_SIZE * 2 + 1] = { };
#else
char buf[MBEDTLS_MD_MAX_SIZE * 2 + 1];
#endif
if( ( f = fopen( filename, "rb" ) ) == NULL )
{
mbedtls_printf( "failed to open: %s\n", filename );
return( 1 );
}
nb_err1 = nb_err2 = 0;
nb_tot1 = nb_tot2 = 0;
memset( line, 0, sizeof( line ) );
n = sizeof( line );
while( fgets( line, (int) n - 1, f ) != NULL )
{
n = strlen( line );
if( n < (size_t) 2 * mbedtls_md_get_size( md_info ) + 4 )
{
mbedtls_printf("No '%s' hash found on line.\n", mbedtls_md_get_name( md_info ));
continue;
}
if( line[2 * mbedtls_md_get_size( md_info )] != ' ' || line[2 * mbedtls_md_get_size( md_info ) + 1] != ' ' )
{
mbedtls_printf("No '%s' hash found on line.\n", mbedtls_md_get_name( md_info ));
continue;
}
if( line[n - 1] == '\n' ) { n--; line[n] = '\0'; }
if( line[n - 1] == '\r' ) { n--; line[n] = '\0'; }
nb_tot1++;
if( generic_wrapper( md_info, line + 2 + 2 * mbedtls_md_get_size( md_info ), sum ) != 0 )
{
nb_err1++;
continue;
}
nb_tot2++;
for( i = 0; i < mbedtls_md_get_size( md_info ); i++ )
sprintf( buf + i * 2, "%02x", sum[i] );
/* Use constant-time buffer comparison */
diff = 0;
for( i = 0; i < 2 * mbedtls_md_get_size( md_info ); i++ )
diff |= line[i] ^ buf[i];
if( diff != 0 )
{
nb_err2++;
mbedtls_fprintf( stderr, "wrong checksum: %s\n", line + 66 );
}
n = sizeof( line );
}
if( nb_err1 != 0 )
{
mbedtls_printf( "WARNING: %d (out of %d) input files could "
"not be read\n", nb_err1, nb_tot1 );
}
if( nb_err2 != 0 )
{
mbedtls_printf( "WARNING: %d (out of %d) computed checksums did "
"not match\n", nb_err2, nb_tot2 );
}
fclose( f );
return( nb_err1 != 0 || nb_err2 != 0 );
}
int main( int argc, char *argv[] )
{
int ret = 1, i;
int exit_code = MBEDTLS_EXIT_FAILURE;
const mbedtls_md_info_t *md_info;
mbedtls_md_context_t md_ctx;
mbedtls_md_init( &md_ctx );
if( argc == 1 )
{
const int *list;
mbedtls_printf( "print mode: generic_sum <mbedtls_md> <file> <file> ...\n" );
mbedtls_printf( "check mode: generic_sum <mbedtls_md> -c <checksum file>\n" );
mbedtls_printf( "\nAvailable message digests:\n" );
list = mbedtls_md_list();
while( *list )
{
md_info = mbedtls_md_info_from_type( *list );
mbedtls_printf( " %s\n", mbedtls_md_get_name( md_info ) );
list++;
}
#if defined(_WIN32)
mbedtls_printf( "\n Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( exit_code );
}
/*
* Read the MD from the command line
*/
md_info = mbedtls_md_info_from_string( argv[1] );
if( md_info == NULL )
{
mbedtls_fprintf( stderr, "Message Digest '%s' not found\n", argv[1] );
return( exit_code );
}
if( mbedtls_md_setup( &md_ctx, md_info, 0 ) )
{
mbedtls_fprintf( stderr, "Failed to initialize context.\n" );
return( exit_code );
}
ret = 0;
if( argc == 4 && strcmp( "-c", argv[2] ) == 0 )
{
ret |= generic_check( md_info, argv[3] );
goto exit;
}
for( i = 2; i < argc; i++ )
ret |= generic_print( md_info, argv[i] );
if ( ret == 0 )
exit_code = MBEDTLS_EXIT_SUCCESS;
exit:
mbedtls_md_free( &md_ctx );
return( exit_code );
}
#endif /* MBEDTLS_MD_C && MBEDTLS_FS_IO */
| YifuLiu/AliOS-Things | components/mbedtls/programs/hash/generic_sum.c | C | apache-2.0 | 6,720 |
/*
* Classic "Hello, world" demonstration program
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdlib.h>
#include <stdio.h>
#define mbedtls_printf printf
#define mbedtls_exit exit
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif
#if defined(MBEDTLS_MD5_C)
#include "mbedtls/md5.h"
#endif
#if !defined(MBEDTLS_MD5_C)
int main( void )
{
mbedtls_printf("MBEDTLS_MD5_C not defined.\n");
return( 0 );
}
#else
#if defined(MBEDTLS_CHECK_PARAMS)
#include "mbedtls/platform_util.h"
void mbedtls_param_failed( const char *failure_condition,
const char *file,
int line )
{
mbedtls_printf( "%s:%i: Input param failed - %s\n",
file, line, failure_condition );
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
}
#endif
int main( void )
{
int i, ret;
unsigned char digest[16];
char str[] = "Hello, world!";
mbedtls_printf( "\n MD5('%s') = ", str );
if( ( ret = mbedtls_md5_ret( (unsigned char *) str, 13, digest ) ) != 0 )
return( MBEDTLS_EXIT_FAILURE );
for( i = 0; i < 16; i++ )
mbedtls_printf( "%02x", digest[i] );
mbedtls_printf( "\n\n" );
#if defined(_WIN32)
mbedtls_printf( " Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( MBEDTLS_EXIT_SUCCESS );
}
#endif /* MBEDTLS_MD5_C */
| YifuLiu/AliOS-Things | components/mbedtls/programs/hash/hello.c | C | apache-2.0 | 2,280 |
add_executable(dh_client dh_client.c)
target_link_libraries(dh_client mbedtls)
add_executable(dh_genprime dh_genprime.c)
target_link_libraries(dh_genprime mbedtls)
add_executable(dh_server dh_server.c)
target_link_libraries(dh_server mbedtls)
add_executable(ecdh_curve25519 ecdh_curve25519.c)
target_link_libraries(ecdh_curve25519 mbedtls)
add_executable(ecdsa ecdsa.c)
target_link_libraries(ecdsa mbedtls)
add_executable(gen_key gen_key.c)
target_link_libraries(gen_key mbedtls)
add_executable(key_app key_app.c)
target_link_libraries(key_app mbedtls)
add_executable(key_app_writer key_app_writer.c)
target_link_libraries(key_app_writer mbedtls)
add_executable(mpi_demo mpi_demo.c)
target_link_libraries(mpi_demo mbedtls)
add_executable(rsa_genkey rsa_genkey.c)
target_link_libraries(rsa_genkey mbedtls)
add_executable(rsa_sign rsa_sign.c)
target_link_libraries(rsa_sign mbedtls)
add_executable(rsa_verify rsa_verify.c)
target_link_libraries(rsa_verify mbedtls)
add_executable(rsa_sign_pss rsa_sign_pss.c)
target_link_libraries(rsa_sign_pss mbedtls)
add_executable(rsa_verify_pss rsa_verify_pss.c)
target_link_libraries(rsa_verify_pss mbedtls)
add_executable(rsa_encrypt rsa_encrypt.c)
target_link_libraries(rsa_encrypt mbedtls)
add_executable(rsa_decrypt rsa_decrypt.c)
target_link_libraries(rsa_decrypt mbedtls)
add_executable(pk_sign pk_sign.c)
target_link_libraries(pk_sign mbedtls)
add_executable(pk_verify pk_verify.c)
target_link_libraries(pk_verify mbedtls)
add_executable(pk_encrypt pk_encrypt.c)
target_link_libraries(pk_encrypt mbedtls)
add_executable(pk_decrypt pk_decrypt.c)
target_link_libraries(pk_decrypt mbedtls)
install(TARGETS dh_client dh_genprime dh_server key_app mpi_demo rsa_genkey rsa_sign rsa_verify rsa_encrypt rsa_decrypt pk_encrypt pk_decrypt pk_sign pk_verify gen_key
DESTINATION "bin"
PERMISSIONS OWNER_READ OWNER_WRITE OWNER_EXECUTE GROUP_READ GROUP_EXECUTE WORLD_READ WORLD_EXECUTE)
| YifuLiu/AliOS-Things | components/mbedtls/programs/pkey/CMakeLists.txt | CMake | apache-2.0 | 1,953 |
/*
* Diffie-Hellman-Merkle key exchange (client side)
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_printf printf
#define mbedtls_time_t time_t
#define mbedtls_exit exit
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif /* MBEDTLS_PLATFORM_C */
#if defined(MBEDTLS_AES_C) && defined(MBEDTLS_DHM_C) && \
defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_NET_C) && \
defined(MBEDTLS_RSA_C) && defined(MBEDTLS_SHA256_C) && \
defined(MBEDTLS_FS_IO) && defined(MBEDTLS_CTR_DRBG_C) && \
defined(MBEDTLS_SHA1_C)
#include "mbedtls/net_sockets.h"
#include "mbedtls/aes.h"
#include "mbedtls/dhm.h"
#include "mbedtls/rsa.h"
#include "mbedtls/sha1.h"
#include "mbedtls/entropy.h"
#include "mbedtls/ctr_drbg.h"
#include <stdio.h>
#include <string.h>
#endif
#define SERVER_NAME "localhost"
#define SERVER_PORT "11999"
#if !defined(MBEDTLS_AES_C) || !defined(MBEDTLS_DHM_C) || \
!defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_NET_C) || \
!defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_SHA256_C) || \
!defined(MBEDTLS_FS_IO) || !defined(MBEDTLS_CTR_DRBG_C) || \
!defined(MBEDTLS_SHA1_C)
int main( void )
{
mbedtls_printf("MBEDTLS_AES_C and/or MBEDTLS_DHM_C and/or MBEDTLS_ENTROPY_C "
"and/or MBEDTLS_NET_C and/or MBEDTLS_RSA_C and/or "
"MBEDTLS_SHA256_C and/or MBEDTLS_FS_IO and/or "
"MBEDTLS_CTR_DRBG_C not defined.\n");
return( 0 );
}
#else
#if defined(MBEDTLS_CHECK_PARAMS)
#include "mbedtls/platform_util.h"
void mbedtls_param_failed( const char *failure_condition,
const char *file,
int line )
{
mbedtls_printf( "%s:%i: Input param failed - %s\n",
file, line, failure_condition );
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
}
#endif
int main( void )
{
FILE *f;
int ret = 1;
int exit_code = MBEDTLS_EXIT_FAILURE;
size_t n, buflen;
mbedtls_net_context server_fd;
unsigned char *p, *end;
unsigned char buf[2048];
unsigned char hash[32];
const char *pers = "dh_client";
mbedtls_entropy_context entropy;
mbedtls_ctr_drbg_context ctr_drbg;
mbedtls_rsa_context rsa;
mbedtls_dhm_context dhm;
mbedtls_aes_context aes;
mbedtls_net_init( &server_fd );
mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, MBEDTLS_MD_SHA256 );
mbedtls_dhm_init( &dhm );
mbedtls_aes_init( &aes );
mbedtls_ctr_drbg_init( &ctr_drbg );
/*
* 1. Setup the RNG
*/
mbedtls_printf( "\n . Seeding the random number generator" );
fflush( stdout );
mbedtls_entropy_init( &entropy );
if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned %d\n", ret );
goto exit;
}
/*
* 2. Read the server's public RSA key
*/
mbedtls_printf( "\n . Reading public key from rsa_pub.txt" );
fflush( stdout );
if( ( f = fopen( "rsa_pub.txt", "rb" ) ) == NULL )
{
mbedtls_printf( " failed\n ! Could not open rsa_pub.txt\n" \
" ! Please run rsa_genkey first\n\n" );
goto exit;
}
mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, 0 );
if( ( ret = mbedtls_mpi_read_file( &rsa.N, 16, f ) ) != 0 ||
( ret = mbedtls_mpi_read_file( &rsa.E, 16, f ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_mpi_read_file returned %d\n\n", ret );
fclose( f );
goto exit;
}
rsa.len = ( mbedtls_mpi_bitlen( &rsa.N ) + 7 ) >> 3;
fclose( f );
/*
* 3. Initiate the connection
*/
mbedtls_printf( "\n . Connecting to tcp/%s/%s", SERVER_NAME,
SERVER_PORT );
fflush( stdout );
if( ( ret = mbedtls_net_connect( &server_fd, SERVER_NAME,
SERVER_PORT, MBEDTLS_NET_PROTO_TCP ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_net_connect returned %d\n\n", ret );
goto exit;
}
/*
* 4a. First get the buffer length
*/
mbedtls_printf( "\n . Receiving the server's DH parameters" );
fflush( stdout );
memset( buf, 0, sizeof( buf ) );
if( ( ret = mbedtls_net_recv( &server_fd, buf, 2 ) ) != 2 )
{
mbedtls_printf( " failed\n ! mbedtls_net_recv returned %d\n\n", ret );
goto exit;
}
n = buflen = ( buf[0] << 8 ) | buf[1];
if( buflen < 1 || buflen > sizeof( buf ) )
{
mbedtls_printf( " failed\n ! Got an invalid buffer length\n\n" );
goto exit;
}
/*
* 4b. Get the DHM parameters: P, G and Ys = G^Xs mod P
*/
memset( buf, 0, sizeof( buf ) );
if( ( ret = mbedtls_net_recv( &server_fd, buf, n ) ) != (int) n )
{
mbedtls_printf( " failed\n ! mbedtls_net_recv returned %d\n\n", ret );
goto exit;
}
p = buf, end = buf + buflen;
if( ( ret = mbedtls_dhm_read_params( &dhm, &p, end ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_dhm_read_params returned %d\n\n", ret );
goto exit;
}
if( dhm.len < 64 || dhm.len > 512 )
{
mbedtls_printf( " failed\n ! Invalid DHM modulus size\n\n" );
goto exit;
}
/*
* 5. Check that the server's RSA signature matches
* the SHA-256 hash of (P,G,Ys)
*/
mbedtls_printf( "\n . Verifying the server's RSA signature" );
fflush( stdout );
p += 2;
if( ( n = (size_t) ( end - p ) ) != rsa.len )
{
mbedtls_printf( " failed\n ! Invalid RSA signature size\n\n" );
goto exit;
}
if( ( ret = mbedtls_sha1_ret( buf, (int)( p - 2 - buf ), hash ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_sha1_ret returned %d\n\n", ret );
goto exit;
}
if( ( ret = mbedtls_rsa_pkcs1_verify( &rsa, NULL, NULL, MBEDTLS_RSA_PUBLIC,
MBEDTLS_MD_SHA256, 0, hash, p ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_rsa_pkcs1_verify returned %d\n\n", ret );
goto exit;
}
/*
* 6. Send our public value: Yc = G ^ Xc mod P
*/
mbedtls_printf( "\n . Sending own public value to server" );
fflush( stdout );
n = dhm.len;
if( ( ret = mbedtls_dhm_make_public( &dhm, (int) dhm.len, buf, n,
mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_dhm_make_public returned %d\n\n", ret );
goto exit;
}
if( ( ret = mbedtls_net_send( &server_fd, buf, n ) ) != (int) n )
{
mbedtls_printf( " failed\n ! mbedtls_net_send returned %d\n\n", ret );
goto exit;
}
/*
* 7. Derive the shared secret: K = Ys ^ Xc mod P
*/
mbedtls_printf( "\n . Shared secret: " );
fflush( stdout );
if( ( ret = mbedtls_dhm_calc_secret( &dhm, buf, sizeof( buf ), &n,
mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_dhm_calc_secret returned %d\n\n", ret );
goto exit;
}
for( n = 0; n < 16; n++ )
mbedtls_printf( "%02x", buf[n] );
/*
* 8. Setup the AES-256 decryption key
*
* This is an overly simplified example; best practice is
* to hash the shared secret with a random value to derive
* the keying material for the encryption/decryption keys,
* IVs and MACs.
*/
mbedtls_printf( "...\n . Receiving and decrypting the ciphertext" );
fflush( stdout );
mbedtls_aes_setkey_dec( &aes, buf, 256 );
memset( buf, 0, sizeof( buf ) );
if( ( ret = mbedtls_net_recv( &server_fd, buf, 16 ) ) != 16 )
{
mbedtls_printf( " failed\n ! mbedtls_net_recv returned %d\n\n", ret );
goto exit;
}
mbedtls_aes_crypt_ecb( &aes, MBEDTLS_AES_DECRYPT, buf, buf );
buf[16] = '\0';
mbedtls_printf( "\n . Plaintext is \"%s\"\n\n", (char *) buf );
exit_code = MBEDTLS_EXIT_SUCCESS;
exit:
mbedtls_net_free( &server_fd );
mbedtls_aes_free( &aes );
mbedtls_rsa_free( &rsa );
mbedtls_dhm_free( &dhm );
mbedtls_ctr_drbg_free( &ctr_drbg );
mbedtls_entropy_free( &entropy );
#if defined(_WIN32)
mbedtls_printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( exit_code );
}
#endif /* MBEDTLS_AES_C && MBEDTLS_DHM_C && MBEDTLS_ENTROPY_C &&
MBEDTLS_NET_C && MBEDTLS_RSA_C && MBEDTLS_SHA256_C &&
MBEDTLS_FS_IO && MBEDTLS_CTR_DRBG_C */
| YifuLiu/AliOS-Things | components/mbedtls/programs/pkey/dh_client.c | C | apache-2.0 | 9,644 |
/*
* Diffie-Hellman-Merkle key exchange (prime generation)
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_printf printf
#define mbedtls_time_t time_t
#define mbedtls_exit exit
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif /* MBEDTLS_PLATFORM_C */
#if !defined(MBEDTLS_BIGNUM_C) || !defined(MBEDTLS_ENTROPY_C) || \
!defined(MBEDTLS_FS_IO) || !defined(MBEDTLS_CTR_DRBG_C) || \
!defined(MBEDTLS_GENPRIME)
int main( void )
{
mbedtls_printf("MBEDTLS_BIGNUM_C and/or MBEDTLS_ENTROPY_C and/or "
"MBEDTLS_FS_IO and/or MBEDTLS_CTR_DRBG_C and/or "
"MBEDTLS_GENPRIME not defined.\n");
return( 0 );
}
#else
#include "mbedtls/bignum.h"
#include "mbedtls/entropy.h"
#include "mbedtls/ctr_drbg.h"
#include <stdio.h>
#include <string.h>
#define USAGE \
"\n usage: dh_genprime param=<>...\n" \
"\n acceprable parameters:\n" \
" bits=%%d default: 2048\n"
#define DFL_BITS 2048
/*
* Note: G = 4 is always a quadratic residue mod P,
* so it is a generator of order Q (with P = 2*Q+1).
*/
#define GENERATOR "4"
#if defined(MBEDTLS_CHECK_PARAMS)
#include "mbedtls/platform_util.h"
void mbedtls_param_failed( const char *failure_condition,
const char *file,
int line )
{
mbedtls_printf( "%s:%i: Input param failed - %s\n",
file, line, failure_condition );
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
}
#endif
int main( int argc, char **argv )
{
int ret = 1;
int exit_code = MBEDTLS_EXIT_FAILURE;
mbedtls_mpi G, P, Q;
mbedtls_entropy_context entropy;
mbedtls_ctr_drbg_context ctr_drbg;
const char *pers = "dh_genprime";
FILE *fout;
int nbits = DFL_BITS;
int i;
char *p, *q;
mbedtls_mpi_init( &G ); mbedtls_mpi_init( &P ); mbedtls_mpi_init( &Q );
mbedtls_ctr_drbg_init( &ctr_drbg );
mbedtls_entropy_init( &entropy );
if( argc == 0 )
{
usage:
mbedtls_printf( USAGE );
return( exit_code );
}
for( i = 1; i < argc; i++ )
{
p = argv[i];
if( ( q = strchr( p, '=' ) ) == NULL )
goto usage;
*q++ = '\0';
if( strcmp( p, "bits" ) == 0 )
{
nbits = atoi( q );
if( nbits < 0 || nbits > MBEDTLS_MPI_MAX_BITS )
goto usage;
}
else
goto usage;
}
if( ( ret = mbedtls_mpi_read_string( &G, 10, GENERATOR ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_mpi_read_string returned %d\n", ret );
goto exit;
}
mbedtls_printf( " ! Generating large primes may take minutes!\n" );
mbedtls_printf( "\n . Seeding the random number generator..." );
fflush( stdout );
if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned %d\n", ret );
goto exit;
}
mbedtls_printf( " ok\n . Generating the modulus, please wait..." );
fflush( stdout );
/*
* This can take a long time...
*/
if( ( ret = mbedtls_mpi_gen_prime( &P, nbits, 1,
mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_mpi_gen_prime returned %d\n\n", ret );
goto exit;
}
mbedtls_printf( " ok\n . Verifying that Q = (P-1)/2 is prime..." );
fflush( stdout );
if( ( ret = mbedtls_mpi_sub_int( &Q, &P, 1 ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_mpi_sub_int returned %d\n\n", ret );
goto exit;
}
if( ( ret = mbedtls_mpi_div_int( &Q, NULL, &Q, 2 ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_mpi_div_int returned %d\n\n", ret );
goto exit;
}
if( ( ret = mbedtls_mpi_is_prime_ext( &Q, 50, mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_mpi_is_prime returned %d\n\n", ret );
goto exit;
}
mbedtls_printf( " ok\n . Exporting the value in dh_prime.txt..." );
fflush( stdout );
if( ( fout = fopen( "dh_prime.txt", "wb+" ) ) == NULL )
{
mbedtls_printf( " failed\n ! Could not create dh_prime.txt\n\n" );
goto exit;
}
if( ( ret = mbedtls_mpi_write_file( "P = ", &P, 16, fout ) != 0 ) ||
( ret = mbedtls_mpi_write_file( "G = ", &G, 16, fout ) != 0 ) )
{
mbedtls_printf( " failed\n ! mbedtls_mpi_write_file returned %d\n\n", ret );
fclose( fout );
goto exit;
}
mbedtls_printf( " ok\n\n" );
fclose( fout );
exit_code = MBEDTLS_EXIT_SUCCESS;
exit:
mbedtls_mpi_free( &G ); mbedtls_mpi_free( &P ); mbedtls_mpi_free( &Q );
mbedtls_ctr_drbg_free( &ctr_drbg );
mbedtls_entropy_free( &entropy );
#if defined(_WIN32)
mbedtls_printf( " Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( exit_code );
}
#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_ENTROPY_C && MBEDTLS_FS_IO &&
MBEDTLS_CTR_DRBG_C && MBEDTLS_GENPRIME */
| YifuLiu/AliOS-Things | components/mbedtls/programs/pkey/dh_genprime.c | C | apache-2.0 | 6,257 |
/*
* Diffie-Hellman-Merkle key exchange (server side)
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_printf printf
#define mbedtls_time_t time_t
#define mbedtls_exit exit
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif /* MBEDTLS_PLATFORM_C */
#if defined(MBEDTLS_AES_C) && defined(MBEDTLS_DHM_C) && \
defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_NET_C) && \
defined(MBEDTLS_RSA_C) && defined(MBEDTLS_SHA256_C) && \
defined(MBEDTLS_FS_IO) && defined(MBEDTLS_CTR_DRBG_C) && \
defined(MBEDTLS_SHA1_C)
#include "mbedtls/net_sockets.h"
#include "mbedtls/aes.h"
#include "mbedtls/dhm.h"
#include "mbedtls/rsa.h"
#include "mbedtls/sha1.h"
#include "mbedtls/entropy.h"
#include "mbedtls/ctr_drbg.h"
#include <stdio.h>
#include <string.h>
#endif
#define SERVER_PORT "11999"
#define PLAINTEXT "==Hello there!=="
#if !defined(MBEDTLS_AES_C) || !defined(MBEDTLS_DHM_C) || \
!defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_NET_C) || \
!defined(MBEDTLS_RSA_C) || !defined(MBEDTLS_SHA256_C) || \
!defined(MBEDTLS_FS_IO) || !defined(MBEDTLS_CTR_DRBG_C) || \
!defined(MBEDTLS_SHA1_C)
int main( void )
{
mbedtls_printf("MBEDTLS_AES_C and/or MBEDTLS_DHM_C and/or MBEDTLS_ENTROPY_C "
"and/or MBEDTLS_NET_C and/or MBEDTLS_RSA_C and/or "
"MBEDTLS_SHA256_C and/or MBEDTLS_FS_IO and/or "
"MBEDTLS_CTR_DRBG_C not defined.\n");
return( 0 );
}
#else
#if defined(MBEDTLS_CHECK_PARAMS)
#include "mbedtls/platform_util.h"
void mbedtls_param_failed( const char *failure_condition,
const char *file,
int line )
{
mbedtls_printf( "%s:%i: Input param failed - %s\n",
file, line, failure_condition );
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
}
#endif
int main( void )
{
FILE *f;
int ret = 1;
int exit_code = MBEDTLS_EXIT_FAILURE;
size_t n, buflen;
mbedtls_net_context listen_fd, client_fd;
unsigned char buf[2048];
unsigned char hash[32];
unsigned char buf2[2];
const char *pers = "dh_server";
mbedtls_entropy_context entropy;
mbedtls_ctr_drbg_context ctr_drbg;
mbedtls_rsa_context rsa;
mbedtls_dhm_context dhm;
mbedtls_aes_context aes;
mbedtls_mpi N, P, Q, D, E;
mbedtls_net_init( &listen_fd );
mbedtls_net_init( &client_fd );
mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, MBEDTLS_MD_SHA256 );
mbedtls_dhm_init( &dhm );
mbedtls_aes_init( &aes );
mbedtls_ctr_drbg_init( &ctr_drbg );
mbedtls_mpi_init( &N ); mbedtls_mpi_init( &P ); mbedtls_mpi_init( &Q );
mbedtls_mpi_init( &D ); mbedtls_mpi_init( &E );
/*
* 1. Setup the RNG
*/
mbedtls_printf( "\n . Seeding the random number generator" );
fflush( stdout );
mbedtls_entropy_init( &entropy );
if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned %d\n", ret );
goto exit;
}
/*
* 2a. Read the server's private RSA key
*/
mbedtls_printf( "\n . Reading private key from rsa_priv.txt" );
fflush( stdout );
if( ( f = fopen( "rsa_priv.txt", "rb" ) ) == NULL )
{
mbedtls_printf( " failed\n ! Could not open rsa_priv.txt\n" \
" ! Please run rsa_genkey first\n\n" );
goto exit;
}
mbedtls_rsa_init( &rsa, MBEDTLS_RSA_PKCS_V15, 0 );
if( ( ret = mbedtls_mpi_read_file( &N , 16, f ) ) != 0 ||
( ret = mbedtls_mpi_read_file( &E , 16, f ) ) != 0 ||
( ret = mbedtls_mpi_read_file( &D , 16, f ) ) != 0 ||
( ret = mbedtls_mpi_read_file( &P , 16, f ) ) != 0 ||
( ret = mbedtls_mpi_read_file( &Q , 16, f ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_mpi_read_file returned %d\n\n",
ret );
fclose( f );
goto exit;
}
fclose( f );
if( ( ret = mbedtls_rsa_import( &rsa, &N, &P, &Q, &D, &E ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_rsa_import returned %d\n\n",
ret );
goto exit;
}
if( ( ret = mbedtls_rsa_complete( &rsa ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_rsa_complete returned %d\n\n",
ret );
goto exit;
}
/*
* 2b. Get the DHM modulus and generator
*/
mbedtls_printf( "\n . Reading DH parameters from dh_prime.txt" );
fflush( stdout );
if( ( f = fopen( "dh_prime.txt", "rb" ) ) == NULL )
{
mbedtls_printf( " failed\n ! Could not open dh_prime.txt\n" \
" ! Please run dh_genprime first\n\n" );
goto exit;
}
if( mbedtls_mpi_read_file( &dhm.P, 16, f ) != 0 ||
mbedtls_mpi_read_file( &dhm.G, 16, f ) != 0 )
{
mbedtls_printf( " failed\n ! Invalid DH parameter file\n\n" );
fclose( f );
goto exit;
}
fclose( f );
/*
* 3. Wait for a client to connect
*/
mbedtls_printf( "\n . Waiting for a remote connection" );
fflush( stdout );
if( ( ret = mbedtls_net_bind( &listen_fd, NULL, SERVER_PORT, MBEDTLS_NET_PROTO_TCP ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_net_bind returned %d\n\n", ret );
goto exit;
}
if( ( ret = mbedtls_net_accept( &listen_fd, &client_fd,
NULL, 0, NULL ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_net_accept returned %d\n\n", ret );
goto exit;
}
/*
* 4. Setup the DH parameters (P,G,Ys)
*/
mbedtls_printf( "\n . Sending the server's DH parameters" );
fflush( stdout );
memset( buf, 0, sizeof( buf ) );
if( ( ret = mbedtls_dhm_make_params( &dhm, (int) mbedtls_mpi_size( &dhm.P ), buf, &n,
mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_dhm_make_params returned %d\n\n", ret );
goto exit;
}
/*
* 5. Sign the parameters and send them
*/
if( ( ret = mbedtls_sha1_ret( buf, n, hash ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_sha1_ret returned %d\n\n", ret );
goto exit;
}
buf[n ] = (unsigned char)( rsa.len >> 8 );
buf[n + 1] = (unsigned char)( rsa.len );
if( ( ret = mbedtls_rsa_pkcs1_sign( &rsa, NULL, NULL, MBEDTLS_RSA_PRIVATE, MBEDTLS_MD_SHA256,
0, hash, buf + n + 2 ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_rsa_pkcs1_sign returned %d\n\n", ret );
goto exit;
}
buflen = n + 2 + rsa.len;
buf2[0] = (unsigned char)( buflen >> 8 );
buf2[1] = (unsigned char)( buflen );
if( ( ret = mbedtls_net_send( &client_fd, buf2, 2 ) ) != 2 ||
( ret = mbedtls_net_send( &client_fd, buf, buflen ) ) != (int) buflen )
{
mbedtls_printf( " failed\n ! mbedtls_net_send returned %d\n\n", ret );
goto exit;
}
/*
* 6. Get the client's public value: Yc = G ^ Xc mod P
*/
mbedtls_printf( "\n . Receiving the client's public value" );
fflush( stdout );
memset( buf, 0, sizeof( buf ) );
n = dhm.len;
if( ( ret = mbedtls_net_recv( &client_fd, buf, n ) ) != (int) n )
{
mbedtls_printf( " failed\n ! mbedtls_net_recv returned %d\n\n", ret );
goto exit;
}
if( ( ret = mbedtls_dhm_read_public( &dhm, buf, dhm.len ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_dhm_read_public returned %d\n\n", ret );
goto exit;
}
/*
* 7. Derive the shared secret: K = Ys ^ Xc mod P
*/
mbedtls_printf( "\n . Shared secret: " );
fflush( stdout );
if( ( ret = mbedtls_dhm_calc_secret( &dhm, buf, sizeof( buf ), &n,
mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_dhm_calc_secret returned %d\n\n", ret );
goto exit;
}
for( n = 0; n < 16; n++ )
mbedtls_printf( "%02x", buf[n] );
/*
* 8. Setup the AES-256 encryption key
*
* This is an overly simplified example; best practice is
* to hash the shared secret with a random value to derive
* the keying material for the encryption/decryption keys
* and MACs.
*/
mbedtls_printf( "...\n . Encrypting and sending the ciphertext" );
fflush( stdout );
mbedtls_aes_setkey_enc( &aes, buf, 256 );
memcpy( buf, PLAINTEXT, 16 );
mbedtls_aes_crypt_ecb( &aes, MBEDTLS_AES_ENCRYPT, buf, buf );
if( ( ret = mbedtls_net_send( &client_fd, buf, 16 ) ) != 16 )
{
mbedtls_printf( " failed\n ! mbedtls_net_send returned %d\n\n", ret );
goto exit;
}
mbedtls_printf( "\n\n" );
exit_code = MBEDTLS_EXIT_SUCCESS;
exit:
mbedtls_mpi_free( &N ); mbedtls_mpi_free( &P ); mbedtls_mpi_free( &Q );
mbedtls_mpi_free( &D ); mbedtls_mpi_free( &E );
mbedtls_net_free( &client_fd );
mbedtls_net_free( &listen_fd );
mbedtls_aes_free( &aes );
mbedtls_rsa_free( &rsa );
mbedtls_dhm_free( &dhm );
mbedtls_ctr_drbg_free( &ctr_drbg );
mbedtls_entropy_free( &entropy );
#if defined(_WIN32)
mbedtls_printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( exit_code );
}
#endif /* MBEDTLS_AES_C && MBEDTLS_DHM_C && MBEDTLS_ENTROPY_C &&
MBEDTLS_NET_C && MBEDTLS_RSA_C && MBEDTLS_SHA256_C &&
MBEDTLS_FS_IO && MBEDTLS_CTR_DRBG_C */
| YifuLiu/AliOS-Things | components/mbedtls/programs/pkey/dh_server.c | C | apache-2.0 | 10,639 |
/*
* Example ECDHE with Curve25519 program
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_printf printf
#define mbedtls_exit exit
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif /* MBEDTLS_PLATFORM_C */
#if !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_ECDH_LEGACY_CONTEXT) || \
!defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) || \
!defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_CTR_DRBG_C)
int main( void )
{
mbedtls_printf( "MBEDTLS_ECDH_C and/or MBEDTLS_ECDH_LEGACY_CONTEXT and/or "
"MBEDTLS_ECP_DP_CURVE25519_ENABLED and/or "
"MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C "
"not defined\n" );
return( 0 );
}
#else
#include "mbedtls/entropy.h"
#include "mbedtls/ctr_drbg.h"
#include "mbedtls/ecdh.h"
#if defined(MBEDTLS_CHECK_PARAMS)
#include "mbedtls/platform_util.h"
void mbedtls_param_failed( const char *failure_condition,
const char *file,
int line )
{
mbedtls_printf( "%s:%i: Input param failed - %s\n",
file, line, failure_condition );
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
}
#endif
int main( int argc, char *argv[] )
{
int ret = 1;
int exit_code = MBEDTLS_EXIT_FAILURE;
mbedtls_ecdh_context ctx_cli, ctx_srv;
mbedtls_entropy_context entropy;
mbedtls_ctr_drbg_context ctr_drbg;
unsigned char cli_to_srv[32], srv_to_cli[32];
const char pers[] = "ecdh";
((void) argc);
((void) argv);
mbedtls_ecdh_init( &ctx_cli );
mbedtls_ecdh_init( &ctx_srv );
mbedtls_ctr_drbg_init( &ctr_drbg );
/*
* Initialize random number generation
*/
mbedtls_printf( " . Seeding the random number generator..." );
fflush( stdout );
mbedtls_entropy_init( &entropy );
if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
(const unsigned char *) pers,
sizeof pers ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned %d\n", ret );
goto exit;
}
mbedtls_printf( " ok\n" );
/*
* Client: inialize context and generate keypair
*/
mbedtls_printf( " . Setting up client context..." );
fflush( stdout );
ret = mbedtls_ecp_group_load( &ctx_cli.grp, MBEDTLS_ECP_DP_CURVE25519 );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecp_group_load returned %d\n", ret );
goto exit;
}
ret = mbedtls_ecdh_gen_public( &ctx_cli.grp, &ctx_cli.d, &ctx_cli.Q,
mbedtls_ctr_drbg_random, &ctr_drbg );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecdh_gen_public returned %d\n", ret );
goto exit;
}
ret = mbedtls_mpi_write_binary( &ctx_cli.Q.X, cli_to_srv, 32 );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_mpi_write_binary returned %d\n", ret );
goto exit;
}
mbedtls_printf( " ok\n" );
/*
* Server: initialize context and generate keypair
*/
mbedtls_printf( " . Setting up server context..." );
fflush( stdout );
ret = mbedtls_ecp_group_load( &ctx_srv.grp, MBEDTLS_ECP_DP_CURVE25519 );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecp_group_load returned %d\n", ret );
goto exit;
}
ret = mbedtls_ecdh_gen_public( &ctx_srv.grp, &ctx_srv.d, &ctx_srv.Q,
mbedtls_ctr_drbg_random, &ctr_drbg );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecdh_gen_public returned %d\n", ret );
goto exit;
}
ret = mbedtls_mpi_write_binary( &ctx_srv.Q.X, srv_to_cli, 32 );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_mpi_write_binary returned %d\n", ret );
goto exit;
}
mbedtls_printf( " ok\n" );
/*
* Server: read peer's key and generate shared secret
*/
mbedtls_printf( " . Server reading client key and computing secret..." );
fflush( stdout );
ret = mbedtls_mpi_lset( &ctx_srv.Qp.Z, 1 );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_mpi_lset returned %d\n", ret );
goto exit;
}
ret = mbedtls_mpi_read_binary( &ctx_srv.Qp.X, cli_to_srv, 32 );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_mpi_read_binary returned %d\n", ret );
goto exit;
}
ret = mbedtls_ecdh_compute_shared( &ctx_srv.grp, &ctx_srv.z,
&ctx_srv.Qp, &ctx_srv.d,
mbedtls_ctr_drbg_random, &ctr_drbg );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecdh_compute_shared returned %d\n", ret );
goto exit;
}
mbedtls_printf( " ok\n" );
/*
* Client: read peer's key and generate shared secret
*/
mbedtls_printf( " . Client reading server key and computing secret..." );
fflush( stdout );
ret = mbedtls_mpi_lset( &ctx_cli.Qp.Z, 1 );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_mpi_lset returned %d\n", ret );
goto exit;
}
ret = mbedtls_mpi_read_binary( &ctx_cli.Qp.X, srv_to_cli, 32 );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_mpi_read_binary returned %d\n", ret );
goto exit;
}
ret = mbedtls_ecdh_compute_shared( &ctx_cli.grp, &ctx_cli.z,
&ctx_cli.Qp, &ctx_cli.d,
mbedtls_ctr_drbg_random, &ctr_drbg );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecdh_compute_shared returned %d\n", ret );
goto exit;
}
mbedtls_printf( " ok\n" );
/*
* Verification: are the computed secrets equal?
*/
mbedtls_printf( " . Checking if both computed secrets are equal..." );
fflush( stdout );
ret = mbedtls_mpi_cmp_mpi( &ctx_cli.z, &ctx_srv.z );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecdh_compute_shared returned %d\n", ret );
goto exit;
}
mbedtls_printf( " ok\n" );
exit_code = MBEDTLS_EXIT_SUCCESS;
exit:
#if defined(_WIN32)
mbedtls_printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
mbedtls_ecdh_free( &ctx_srv );
mbedtls_ecdh_free( &ctx_cli );
mbedtls_ctr_drbg_free( &ctr_drbg );
mbedtls_entropy_free( &entropy );
return( exit_code );
}
#endif /* MBEDTLS_ECDH_C && MBEDTLS_ECP_DP_CURVE25519_ENABLED &&
MBEDTLS_ENTROPY_C && MBEDTLS_CTR_DRBG_C */
| YifuLiu/AliOS-Things | components/mbedtls/programs/pkey/ecdh_curve25519.c | C | apache-2.0 | 7,605 |
/*
* Example ECDSA program
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_printf printf
#define mbedtls_exit exit
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif /* MBEDTLS_PLATFORM_C */
#if defined(MBEDTLS_ECDSA_C) && \
defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_CTR_DRBG_C)
#include "mbedtls/entropy.h"
#include "mbedtls/ctr_drbg.h"
#include "mbedtls/ecdsa.h"
#include "mbedtls/sha256.h"
#include <string.h>
#endif
/*
* Uncomment to show key and signature details
*/
#define VERBOSE
/*
* Uncomment to force use of a specific curve
*/
#define ECPARAMS MBEDTLS_ECP_DP_SECP192R1
#if !defined(ECPARAMS)
#define ECPARAMS mbedtls_ecp_curve_list()->grp_id
#endif
#if !defined(MBEDTLS_ECDSA_C) || !defined(MBEDTLS_SHA256_C) || \
!defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_CTR_DRBG_C)
int main( void )
{
mbedtls_printf("MBEDTLS_ECDSA_C and/or MBEDTLS_SHA256_C and/or "
"MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C not defined\n");
return( 0 );
}
#else
#if defined(VERBOSE)
static void dump_buf( const char *title, unsigned char *buf, size_t len )
{
size_t i;
mbedtls_printf( "%s", title );
for( i = 0; i < len; i++ )
mbedtls_printf("%c%c", "0123456789ABCDEF" [buf[i] / 16],
"0123456789ABCDEF" [buf[i] % 16] );
mbedtls_printf( "\n" );
}
static void dump_pubkey( const char *title, mbedtls_ecdsa_context *key )
{
unsigned char buf[300];
size_t len;
if( mbedtls_ecp_point_write_binary( &key->grp, &key->Q,
MBEDTLS_ECP_PF_UNCOMPRESSED, &len, buf, sizeof buf ) != 0 )
{
mbedtls_printf("internal error\n");
return;
}
dump_buf( title, buf, len );
}
#else
#define dump_buf( a, b, c )
#define dump_pubkey( a, b )
#endif
#if defined(MBEDTLS_CHECK_PARAMS)
#include "mbedtls/platform_util.h"
void mbedtls_param_failed( const char *failure_condition,
const char *file,
int line )
{
mbedtls_printf( "%s:%i: Input param failed - %s\n",
file, line, failure_condition );
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
}
#endif
int main( int argc, char *argv[] )
{
int ret = 1;
int exit_code = MBEDTLS_EXIT_FAILURE;
mbedtls_ecdsa_context ctx_sign, ctx_verify;
mbedtls_entropy_context entropy;
mbedtls_ctr_drbg_context ctr_drbg;
unsigned char message[100];
unsigned char hash[32];
unsigned char sig[MBEDTLS_ECDSA_MAX_LEN];
size_t sig_len;
const char *pers = "ecdsa";
((void) argv);
mbedtls_ecdsa_init( &ctx_sign );
mbedtls_ecdsa_init( &ctx_verify );
mbedtls_ctr_drbg_init( &ctr_drbg );
memset( sig, 0, sizeof( sig ) );
memset( message, 0x25, sizeof( message ) );
if( argc != 1 )
{
mbedtls_printf( "usage: ecdsa\n" );
#if defined(_WIN32)
mbedtls_printf( "\n" );
#endif
goto exit;
}
/*
* Generate a key pair for signing
*/
mbedtls_printf( "\n . Seeding the random number generator..." );
fflush( stdout );
mbedtls_entropy_init( &entropy );
if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned %d\n", ret );
goto exit;
}
mbedtls_printf( " ok\n . Generating key pair..." );
fflush( stdout );
if( ( ret = mbedtls_ecdsa_genkey( &ctx_sign, ECPARAMS,
mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecdsa_genkey returned %d\n", ret );
goto exit;
}
mbedtls_printf( " ok (key size: %d bits)\n", (int) ctx_sign.grp.pbits );
dump_pubkey( " + Public key: ", &ctx_sign );
/*
* Compute message hash
*/
mbedtls_printf( " . Computing message hash..." );
fflush( stdout );
if( ( ret = mbedtls_sha256_ret( message, sizeof( message ), hash, 0 ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_sha256_ret returned %d\n", ret );
goto exit;
}
mbedtls_printf( " ok\n" );
dump_buf( " + Hash: ", hash, sizeof( hash ) );
/*
* Sign message hash
*/
mbedtls_printf( " . Signing message hash..." );
fflush( stdout );
if( ( ret = mbedtls_ecdsa_write_signature( &ctx_sign, MBEDTLS_MD_SHA256,
hash, sizeof( hash ),
sig, &sig_len,
mbedtls_ctr_drbg_random, &ctr_drbg ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecdsa_genkey returned %d\n", ret );
goto exit;
}
mbedtls_printf( " ok (signature length = %u)\n", (unsigned int) sig_len );
dump_buf( " + Signature: ", sig, sig_len );
/*
* Transfer public information to verifying context
*
* We could use the same context for verification and signatures, but we
* chose to use a new one in order to make it clear that the verifying
* context only needs the public key (Q), and not the private key (d).
*/
mbedtls_printf( " . Preparing verification context..." );
fflush( stdout );
if( ( ret = mbedtls_ecp_group_copy( &ctx_verify.grp, &ctx_sign.grp ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecp_group_copy returned %d\n", ret );
goto exit;
}
if( ( ret = mbedtls_ecp_copy( &ctx_verify.Q, &ctx_sign.Q ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecp_copy returned %d\n", ret );
goto exit;
}
/*
* Verify signature
*/
mbedtls_printf( " ok\n . Verifying signature..." );
fflush( stdout );
if( ( ret = mbedtls_ecdsa_read_signature( &ctx_verify,
hash, sizeof( hash ),
sig, sig_len ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecdsa_read_signature returned %d\n", ret );
goto exit;
}
mbedtls_printf( " ok\n" );
exit_code = MBEDTLS_EXIT_SUCCESS;
exit:
#if defined(_WIN32)
mbedtls_printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
mbedtls_ecdsa_free( &ctx_verify );
mbedtls_ecdsa_free( &ctx_sign );
mbedtls_ctr_drbg_free( &ctr_drbg );
mbedtls_entropy_free( &entropy );
return( exit_code );
}
#endif /* MBEDTLS_ECDSA_C && MBEDTLS_ENTROPY_C && MBEDTLS_CTR_DRBG_C &&
ECPARAMS */
| YifuLiu/AliOS-Things | components/mbedtls/programs/pkey/ecdsa.c | C | apache-2.0 | 7,547 |
/*
* Key generation application
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_printf printf
#define mbedtls_exit exit
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif /* MBEDTLS_PLATFORM_C */
#if defined(MBEDTLS_PK_WRITE_C) && defined(MBEDTLS_FS_IO) && \
defined(MBEDTLS_ENTROPY_C) && defined(MBEDTLS_CTR_DRBG_C)
#include "mbedtls/error.h"
#include "mbedtls/pk.h"
#include "mbedtls/ecdsa.h"
#include "mbedtls/rsa.h"
#include "mbedtls/error.h"
#include "mbedtls/entropy.h"
#include "mbedtls/ctr_drbg.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#if !defined(_WIN32)
#include <unistd.h>
#define DEV_RANDOM_THRESHOLD 32
int dev_random_entropy_poll( void *data, unsigned char *output,
size_t len, size_t *olen )
{
FILE *file;
size_t ret, left = len;
unsigned char *p = output;
((void) data);
*olen = 0;
file = fopen( "/dev/random", "rb" );
if( file == NULL )
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
while( left > 0 )
{
/* /dev/random can return much less than requested. If so, try again */
ret = fread( p, 1, left, file );
if( ret == 0 && ferror( file ) )
{
fclose( file );
return( MBEDTLS_ERR_ENTROPY_SOURCE_FAILED );
}
p += ret;
left -= ret;
sleep( 1 );
}
fclose( file );
*olen = len;
return( 0 );
}
#endif /* !_WIN32 */
#endif
#if defined(MBEDTLS_ECP_C)
#define DFL_EC_CURVE mbedtls_ecp_curve_list()->grp_id
#else
#define DFL_EC_CURVE 0
#endif
#if !defined(_WIN32) && defined(MBEDTLS_FS_IO)
#define USAGE_DEV_RANDOM \
" use_dev_random=0|1 default: 0\n"
#else
#define USAGE_DEV_RANDOM ""
#endif /* !_WIN32 && MBEDTLS_FS_IO */
#define FORMAT_PEM 0
#define FORMAT_DER 1
#define DFL_TYPE MBEDTLS_PK_RSA
#define DFL_RSA_KEYSIZE 4096
#define DFL_FILENAME "keyfile.key"
#define DFL_FORMAT FORMAT_PEM
#define DFL_USE_DEV_RANDOM 0
#define USAGE \
"\n usage: gen_key param=<>...\n" \
"\n acceptable parameters:\n" \
" type=rsa|ec default: rsa\n" \
" rsa_keysize=%%d default: 4096\n" \
" ec_curve=%%s see below\n" \
" filename=%%s default: keyfile.key\n" \
" format=pem|der default: pem\n" \
USAGE_DEV_RANDOM \
"\n"
#if !defined(MBEDTLS_PK_WRITE_C) || !defined(MBEDTLS_PEM_WRITE_C) || \
!defined(MBEDTLS_FS_IO) || !defined(MBEDTLS_ENTROPY_C) || \
!defined(MBEDTLS_CTR_DRBG_C)
int main( void )
{
mbedtls_printf( "MBEDTLS_PK_WRITE_C and/or MBEDTLS_FS_IO and/or "
"MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C and/or "
"MBEDTLS_PEM_WRITE_C"
"not defined.\n" );
return( 0 );
}
#else
#if defined(MBEDTLS_CHECK_PARAMS)
#include "mbedtls/platform_util.h"
void mbedtls_param_failed( const char *failure_condition,
const char *file,
int line )
{
mbedtls_printf( "%s:%i: Input param failed - %s\n",
file, line, failure_condition );
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
}
#endif
/*
* global options
*/
struct options
{
int type; /* the type of key to generate */
int rsa_keysize; /* length of key in bits */
int ec_curve; /* curve identifier for EC keys */
const char *filename; /* filename of the key file */
int format; /* the output format to use */
int use_dev_random; /* use /dev/random as entropy source */
} opt;
static int write_private_key( mbedtls_pk_context *key, const char *output_file )
{
int ret;
FILE *f;
unsigned char output_buf[16000];
unsigned char *c = output_buf;
size_t len = 0;
memset(output_buf, 0, 16000);
if( opt.format == FORMAT_PEM )
{
if( ( ret = mbedtls_pk_write_key_pem( key, output_buf, 16000 ) ) != 0 )
return( ret );
len = strlen( (char *) output_buf );
}
else
{
if( ( ret = mbedtls_pk_write_key_der( key, output_buf, 16000 ) ) < 0 )
return( ret );
len = ret;
c = output_buf + sizeof(output_buf) - len;
}
if( ( f = fopen( output_file, "wb" ) ) == NULL )
return( -1 );
if( fwrite( c, 1, len, f ) != len )
{
fclose( f );
return( -1 );
}
fclose( f );
return( 0 );
}
int main( int argc, char *argv[] )
{
int ret = 1;
int exit_code = MBEDTLS_EXIT_FAILURE;
mbedtls_pk_context key;
char buf[1024];
int i;
char *p, *q;
mbedtls_mpi N, P, Q, D, E, DP, DQ, QP;
mbedtls_entropy_context entropy;
mbedtls_ctr_drbg_context ctr_drbg;
const char *pers = "gen_key";
#if defined(MBEDTLS_ECP_C)
const mbedtls_ecp_curve_info *curve_info;
#endif
/*
* Set to sane values
*/
mbedtls_mpi_init( &N ); mbedtls_mpi_init( &P ); mbedtls_mpi_init( &Q );
mbedtls_mpi_init( &D ); mbedtls_mpi_init( &E ); mbedtls_mpi_init( &DP );
mbedtls_mpi_init( &DQ ); mbedtls_mpi_init( &QP );
mbedtls_pk_init( &key );
mbedtls_ctr_drbg_init( &ctr_drbg );
memset( buf, 0, sizeof( buf ) );
if( argc == 0 )
{
usage:
mbedtls_printf( USAGE );
#if defined(MBEDTLS_ECP_C)
mbedtls_printf( " available ec_curve values:\n" );
curve_info = mbedtls_ecp_curve_list();
mbedtls_printf( " %s (default)\n", curve_info->name );
while( ( ++curve_info )->name != NULL )
mbedtls_printf( " %s\n", curve_info->name );
#endif /* MBEDTLS_ECP_C */
goto exit;
}
opt.type = DFL_TYPE;
opt.rsa_keysize = DFL_RSA_KEYSIZE;
opt.ec_curve = DFL_EC_CURVE;
opt.filename = DFL_FILENAME;
opt.format = DFL_FORMAT;
opt.use_dev_random = DFL_USE_DEV_RANDOM;
for( i = 1; i < argc; i++ )
{
p = argv[i];
if( ( q = strchr( p, '=' ) ) == NULL )
goto usage;
*q++ = '\0';
if( strcmp( p, "type" ) == 0 )
{
if( strcmp( q, "rsa" ) == 0 )
opt.type = MBEDTLS_PK_RSA;
else if( strcmp( q, "ec" ) == 0 )
opt.type = MBEDTLS_PK_ECKEY;
else
goto usage;
}
else if( strcmp( p, "format" ) == 0 )
{
if( strcmp( q, "pem" ) == 0 )
opt.format = FORMAT_PEM;
else if( strcmp( q, "der" ) == 0 )
opt.format = FORMAT_DER;
else
goto usage;
}
else if( strcmp( p, "rsa_keysize" ) == 0 )
{
opt.rsa_keysize = atoi( q );
if( opt.rsa_keysize < 1024 ||
opt.rsa_keysize > MBEDTLS_MPI_MAX_BITS )
goto usage;
}
#if defined(MBEDTLS_ECP_C)
else if( strcmp( p, "ec_curve" ) == 0 )
{
if( ( curve_info = mbedtls_ecp_curve_info_from_name( q ) ) == NULL )
goto usage;
opt.ec_curve = curve_info->grp_id;
}
#endif
else if( strcmp( p, "filename" ) == 0 )
opt.filename = q;
else if( strcmp( p, "use_dev_random" ) == 0 )
{
opt.use_dev_random = atoi( q );
if( opt.use_dev_random < 0 || opt.use_dev_random > 1 )
goto usage;
}
else
goto usage;
}
mbedtls_printf( "\n . Seeding the random number generator..." );
fflush( stdout );
mbedtls_entropy_init( &entropy );
#if !defined(_WIN32) && defined(MBEDTLS_FS_IO)
if( opt.use_dev_random )
{
if( ( ret = mbedtls_entropy_add_source( &entropy, dev_random_entropy_poll,
NULL, DEV_RANDOM_THRESHOLD,
MBEDTLS_ENTROPY_SOURCE_STRONG ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_entropy_add_source returned -0x%04x\n", -ret );
goto exit;
}
mbedtls_printf("\n Using /dev/random, so can take a long time! " );
fflush( stdout );
}
#endif /* !_WIN32 && MBEDTLS_FS_IO */
if( ( ret = mbedtls_ctr_drbg_seed( &ctr_drbg, mbedtls_entropy_func, &entropy,
(const unsigned char *) pers,
strlen( pers ) ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ctr_drbg_seed returned -0x%04x\n", -ret );
goto exit;
}
/*
* 1.1. Generate the key
*/
mbedtls_printf( "\n . Generating the private key ..." );
fflush( stdout );
if( ( ret = mbedtls_pk_setup( &key,
mbedtls_pk_info_from_type( (mbedtls_pk_type_t) opt.type ) ) ) != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_pk_setup returned -0x%04x", -ret );
goto exit;
}
#if defined(MBEDTLS_RSA_C) && defined(MBEDTLS_GENPRIME)
if( opt.type == MBEDTLS_PK_RSA )
{
ret = mbedtls_rsa_gen_key( mbedtls_pk_rsa( key ), mbedtls_ctr_drbg_random, &ctr_drbg,
opt.rsa_keysize, 65537 );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_rsa_gen_key returned -0x%04x", -ret );
goto exit;
}
}
else
#endif /* MBEDTLS_RSA_C */
#if defined(MBEDTLS_ECP_C)
if( opt.type == MBEDTLS_PK_ECKEY )
{
ret = mbedtls_ecp_gen_key( (mbedtls_ecp_group_id) opt.ec_curve,
mbedtls_pk_ec( key ),
mbedtls_ctr_drbg_random, &ctr_drbg );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_ecp_gen_key returned -0x%04x", -ret );
goto exit;
}
}
else
#endif /* MBEDTLS_ECP_C */
{
mbedtls_printf( " failed\n ! key type not supported\n" );
goto exit;
}
/*
* 1.2 Print the key
*/
mbedtls_printf( " ok\n . Key information:\n" );
#if defined(MBEDTLS_RSA_C)
if( mbedtls_pk_get_type( &key ) == MBEDTLS_PK_RSA )
{
mbedtls_rsa_context *rsa = mbedtls_pk_rsa( key );
if( ( ret = mbedtls_rsa_export ( rsa, &N, &P, &Q, &D, &E ) ) != 0 ||
( ret = mbedtls_rsa_export_crt( rsa, &DP, &DQ, &QP ) ) != 0 )
{
mbedtls_printf( " failed\n ! could not export RSA parameters\n\n" );
goto exit;
}
mbedtls_mpi_write_file( "N: ", &N, 16, NULL );
mbedtls_mpi_write_file( "E: ", &E, 16, NULL );
mbedtls_mpi_write_file( "D: ", &D, 16, NULL );
mbedtls_mpi_write_file( "P: ", &P, 16, NULL );
mbedtls_mpi_write_file( "Q: ", &Q, 16, NULL );
mbedtls_mpi_write_file( "DP: ", &DP, 16, NULL );
mbedtls_mpi_write_file( "DQ: ", &DQ, 16, NULL );
mbedtls_mpi_write_file( "QP: ", &QP, 16, NULL );
}
else
#endif
#if defined(MBEDTLS_ECP_C)
if( mbedtls_pk_get_type( &key ) == MBEDTLS_PK_ECKEY )
{
mbedtls_ecp_keypair *ecp = mbedtls_pk_ec( key );
mbedtls_printf( "curve: %s\n",
mbedtls_ecp_curve_info_from_grp_id( ecp->grp.id )->name );
mbedtls_mpi_write_file( "X_Q: ", &ecp->Q.X, 16, NULL );
mbedtls_mpi_write_file( "Y_Q: ", &ecp->Q.Y, 16, NULL );
mbedtls_mpi_write_file( "D: ", &ecp->d , 16, NULL );
}
else
#endif
mbedtls_printf(" ! key type not supported\n");
/*
* 1.3 Export key
*/
mbedtls_printf( " . Writing key to file..." );
if( ( ret = write_private_key( &key, opt.filename ) ) != 0 )
{
mbedtls_printf( " failed\n" );
goto exit;
}
mbedtls_printf( " ok\n" );
exit_code = MBEDTLS_EXIT_SUCCESS;
exit:
if( exit_code != MBEDTLS_EXIT_SUCCESS )
{
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror( ret, buf, sizeof( buf ) );
mbedtls_printf( " - %s\n", buf );
#else
mbedtls_printf("\n");
#endif
}
mbedtls_mpi_free( &N ); mbedtls_mpi_free( &P ); mbedtls_mpi_free( &Q );
mbedtls_mpi_free( &D ); mbedtls_mpi_free( &E ); mbedtls_mpi_free( &DP );
mbedtls_mpi_free( &DQ ); mbedtls_mpi_free( &QP );
mbedtls_pk_free( &key );
mbedtls_ctr_drbg_free( &ctr_drbg );
mbedtls_entropy_free( &entropy );
#if defined(_WIN32)
mbedtls_printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( exit_code );
}
#endif /* MBEDTLS_PK_WRITE_C && MBEDTLS_PEM_WRITE_C && MBEDTLS_FS_IO &&
* MBEDTLS_ENTROPY_C && MBEDTLS_CTR_DRBG_C */
| YifuLiu/AliOS-Things | components/mbedtls/programs/pkey/gen_key.c | C | apache-2.0 | 13,787 |
/*
* Key reading application
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_printf printf
#define mbedtls_exit exit
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif /* MBEDTLS_PLATFORM_C */
#if defined(MBEDTLS_BIGNUM_C) && \
defined(MBEDTLS_PK_PARSE_C) && defined(MBEDTLS_FS_IO)
#include "mbedtls/error.h"
#include "mbedtls/rsa.h"
#include "mbedtls/x509.h"
#include <string.h>
#endif
#define MODE_NONE 0
#define MODE_PRIVATE 1
#define MODE_PUBLIC 2
#define DFL_MODE MODE_NONE
#define DFL_FILENAME "keyfile.key"
#define DFL_PASSWORD ""
#define DFL_PASSWORD_FILE ""
#define DFL_DEBUG_LEVEL 0
#define USAGE \
"\n usage: key_app param=<>...\n" \
"\n acceptable parameters:\n" \
" mode=private|public default: none\n" \
" filename=%%s default: keyfile.key\n" \
" password=%%s default: \"\"\n" \
" password_file=%%s default: \"\"\n" \
"\n"
#if !defined(MBEDTLS_BIGNUM_C) || \
!defined(MBEDTLS_PK_PARSE_C) || !defined(MBEDTLS_FS_IO)
int main( void )
{
mbedtls_printf("MBEDTLS_BIGNUM_C and/or "
"MBEDTLS_PK_PARSE_C and/or MBEDTLS_FS_IO not defined.\n");
return( 0 );
}
#else
#if defined(MBEDTLS_CHECK_PARAMS)
#include "mbedtls/platform_util.h"
void mbedtls_param_failed( const char *failure_condition,
const char *file,
int line )
{
mbedtls_printf( "%s:%i: Input param failed - %s\n",
file, line, failure_condition );
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
}
#endif
/*
* global options
*/
struct options
{
int mode; /* the mode to run the application in */
const char *filename; /* filename of the key file */
const char *password; /* password for the private key */
const char *password_file; /* password_file for the private key */
} opt;
int main( int argc, char *argv[] )
{
int ret = 1;
int exit_code = MBEDTLS_EXIT_FAILURE;
char buf[1024];
int i;
char *p, *q;
mbedtls_pk_context pk;
mbedtls_mpi N, P, Q, D, E, DP, DQ, QP;
/*
* Set to sane values
*/
mbedtls_pk_init( &pk );
memset( buf, 0, sizeof(buf) );
mbedtls_mpi_init( &N ); mbedtls_mpi_init( &P ); mbedtls_mpi_init( &Q );
mbedtls_mpi_init( &D ); mbedtls_mpi_init( &E ); mbedtls_mpi_init( &DP );
mbedtls_mpi_init( &DQ ); mbedtls_mpi_init( &QP );
if( argc == 0 )
{
usage:
mbedtls_printf( USAGE );
goto cleanup;
}
opt.mode = DFL_MODE;
opt.filename = DFL_FILENAME;
opt.password = DFL_PASSWORD;
opt.password_file = DFL_PASSWORD_FILE;
for( i = 1; i < argc; i++ )
{
p = argv[i];
if( ( q = strchr( p, '=' ) ) == NULL )
goto usage;
*q++ = '\0';
if( strcmp( p, "mode" ) == 0 )
{
if( strcmp( q, "private" ) == 0 )
opt.mode = MODE_PRIVATE;
else if( strcmp( q, "public" ) == 0 )
opt.mode = MODE_PUBLIC;
else
goto usage;
}
else if( strcmp( p, "filename" ) == 0 )
opt.filename = q;
else if( strcmp( p, "password" ) == 0 )
opt.password = q;
else if( strcmp( p, "password_file" ) == 0 )
opt.password_file = q;
else
goto usage;
}
if( opt.mode == MODE_PRIVATE )
{
if( strlen( opt.password ) && strlen( opt.password_file ) )
{
mbedtls_printf( "Error: cannot have both password and password_file\n" );
goto usage;
}
if( strlen( opt.password_file ) )
{
FILE *f;
mbedtls_printf( "\n . Loading the password file ..." );
if( ( f = fopen( opt.password_file, "rb" ) ) == NULL )
{
mbedtls_printf( " failed\n ! fopen returned NULL\n" );
goto cleanup;
}
if( fgets( buf, sizeof(buf), f ) == NULL )
{
fclose( f );
mbedtls_printf( "Error: fgets() failed to retrieve password\n" );
goto cleanup;
}
fclose( f );
i = (int) strlen( buf );
if( buf[i - 1] == '\n' ) buf[i - 1] = '\0';
if( buf[i - 2] == '\r' ) buf[i - 2] = '\0';
opt.password = buf;
}
/*
* 1.1. Load the key
*/
mbedtls_printf( "\n . Loading the private key ..." );
fflush( stdout );
ret = mbedtls_pk_parse_keyfile( &pk, opt.filename, opt.password );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_pk_parse_keyfile returned -0x%04x\n", -ret );
goto cleanup;
}
mbedtls_printf( " ok\n" );
/*
* 1.2 Print the key
*/
mbedtls_printf( " . Key information ...\n" );
#if defined(MBEDTLS_RSA_C)
if( mbedtls_pk_get_type( &pk ) == MBEDTLS_PK_RSA )
{
mbedtls_rsa_context *rsa = mbedtls_pk_rsa( pk );
if( ( ret = mbedtls_rsa_export ( rsa, &N, &P, &Q, &D, &E ) ) != 0 ||
( ret = mbedtls_rsa_export_crt( rsa, &DP, &DQ, &QP ) ) != 0 )
{
mbedtls_printf( " failed\n ! could not export RSA parameters\n\n" );
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "N: ", &N, 16, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "E: ", &E, 16, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "D: ", &D, 16, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "P: ", &P, 16, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "Q: ", &Q, 16, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "DP: ", &DP, 16, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "DQ: ", &DQ, 16, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "QP: ", &QP, 16, NULL ) );
}
else
#endif
#if defined(MBEDTLS_ECP_C)
if( mbedtls_pk_get_type( &pk ) == MBEDTLS_PK_ECKEY )
{
mbedtls_ecp_keypair *ecp = mbedtls_pk_ec( pk );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "Q(X): ", &ecp->Q.X, 16, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "Q(Y): ", &ecp->Q.Y, 16, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "Q(Z): ", &ecp->Q.Z, 16, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "D : ", &ecp->d , 16, NULL ) );
}
else
#endif
{
mbedtls_printf("Do not know how to print key information for this type\n" );
goto cleanup;
}
}
else if( opt.mode == MODE_PUBLIC )
{
/*
* 1.1. Load the key
*/
mbedtls_printf( "\n . Loading the public key ..." );
fflush( stdout );
ret = mbedtls_pk_parse_public_keyfile( &pk, opt.filename );
if( ret != 0 )
{
mbedtls_printf( " failed\n ! mbedtls_pk_parse_public_keyfile returned -0x%04x\n", -ret );
goto cleanup;
}
mbedtls_printf( " ok\n" );
mbedtls_printf( " . Key information ...\n" );
#if defined(MBEDTLS_RSA_C)
if( mbedtls_pk_get_type( &pk ) == MBEDTLS_PK_RSA )
{
mbedtls_rsa_context *rsa = mbedtls_pk_rsa( pk );
if( ( ret = mbedtls_rsa_export( rsa, &N, NULL, NULL,
NULL, &E ) ) != 0 )
{
mbedtls_printf( " failed\n ! could not export RSA parameters\n\n" );
goto cleanup;
}
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "N: ", &N, 16, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "E: ", &E, 16, NULL ) );
}
else
#endif
#if defined(MBEDTLS_ECP_C)
if( mbedtls_pk_get_type( &pk ) == MBEDTLS_PK_ECKEY )
{
mbedtls_ecp_keypair *ecp = mbedtls_pk_ec( pk );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "Q(X): ", &ecp->Q.X, 16, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "Q(Y): ", &ecp->Q.Y, 16, NULL ) );
MBEDTLS_MPI_CHK( mbedtls_mpi_write_file( "Q(Z): ", &ecp->Q.Z, 16, NULL ) );
}
else
#endif
{
mbedtls_printf("Do not know how to print key information for this type\n" );
goto cleanup;
}
}
else
goto usage;
exit_code = MBEDTLS_EXIT_SUCCESS;
cleanup:
#if defined(MBEDTLS_ERROR_C)
if( exit_code != MBEDTLS_EXIT_SUCCESS )
{
mbedtls_strerror( ret, buf, sizeof( buf ) );
mbedtls_printf( " ! Last error was: %s\n", buf );
}
#endif
mbedtls_pk_free( &pk );
mbedtls_mpi_free( &N ); mbedtls_mpi_free( &P ); mbedtls_mpi_free( &Q );
mbedtls_mpi_free( &D ); mbedtls_mpi_free( &E ); mbedtls_mpi_free( &DP );
mbedtls_mpi_free( &DQ ); mbedtls_mpi_free( &QP );
#if defined(_WIN32)
mbedtls_printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( exit_code );
}
#endif /* MBEDTLS_BIGNUM_C && MBEDTLS_PK_PARSE_C && MBEDTLS_FS_IO */
| YifuLiu/AliOS-Things | components/mbedtls/programs/pkey/key_app.c | C | apache-2.0 | 10,436 |
/*
* Key writing application
*
* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
#if !defined(MBEDTLS_CONFIG_FILE)
#include "mbedtls/config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif
#if defined(MBEDTLS_PLATFORM_C)
#include "mbedtls/platform.h"
#else
#include <stdio.h>
#include <stdlib.h>
#define mbedtls_printf printf
#define mbedtls_exit exit
#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
#endif /* MBEDTLS_PLATFORM_C */
#if defined(MBEDTLS_PK_WRITE_C) && defined(MBEDTLS_FS_IO)
#include "mbedtls/error.h"
#include "mbedtls/pk.h"
#include "mbedtls/error.h"
#include <stdio.h>
#include <string.h>
#endif
#if defined(MBEDTLS_PEM_WRITE_C)
#define USAGE_OUT \
" output_file=%%s default: keyfile.pem\n" \
" output_format=pem|der default: pem\n"
#else
#define USAGE_OUT \
" output_file=%%s default: keyfile.der\n" \
" output_format=der default: der\n"
#endif
#if defined(MBEDTLS_PEM_WRITE_C)
#define DFL_OUTPUT_FILENAME "keyfile.pem"
#define DFL_OUTPUT_FORMAT OUTPUT_FORMAT_PEM
#else
#define DFL_OUTPUT_FILENAME "keyfile.der"
#define DFL_OUTPUT_FORMAT OUTPUT_FORMAT_DER
#endif
#define DFL_MODE MODE_NONE
#define DFL_FILENAME "keyfile.key"
#define DFL_DEBUG_LEVEL 0
#define DFL_OUTPUT_MODE OUTPUT_MODE_NONE
#define MODE_NONE 0
#define MODE_PRIVATE 1
#define MODE_PUBLIC 2
#define OUTPUT_MODE_NONE 0
#define OUTPUT_MODE_PRIVATE 1
#define OUTPUT_MODE_PUBLIC 2
#define OUTPUT_FORMAT_PEM 0
#define OUTPUT_FORMAT_DER 1
#define USAGE \
"\n usage: key_app_writer param=<>...\n" \
"\n acceptable parameters:\n" \
" mode=private|public default: none\n" \
" filename=%%s default: keyfile.key\n" \
" output_mode=private|public default: none\n" \
USAGE_OUT \
"\n"
#if !defined(MBEDTLS_PK_PARSE_C) || \
!defined(MBEDTLS_PK_WRITE_C) || \
!defined(MBEDTLS_FS_IO)
int main( void )
{
mbedtls_printf( "MBEDTLS_PK_PARSE_C and/or MBEDTLS_PK_WRITE_C and/or MBEDTLS_FS_IO not defined.\n" );
return( 0 );
}
#else
#if defined(MBEDTLS_CHECK_PARAMS)
#include "mbedtls/platform_util.h"
void mbedtls_param_failed( const char *failure_condition,
const char *file,
int line )
{
mbedtls_printf( "%s:%i: Input param failed - %s\n",
file, line, failure_condition );
mbedtls_exit( MBEDTLS_EXIT_FAILURE );
}
#endif
/*
* global options
*/
struct options
{
int mode; /* the mode to run the application in */
const char *filename; /* filename of the key file */
int output_mode; /* the output mode to use */
const char *output_file; /* where to store the constructed key file */
int output_format; /* the output format to use */
} opt;
static int write_public_key( mbedtls_pk_context *key, const char *output_file )
{
int ret;
FILE *f;
unsigned char output_buf[16000];
unsigned char *c = output_buf;
size_t len = 0;
memset(output_buf, 0, 16000);
#if defined(MBEDTLS_PEM_WRITE_C)
if( opt.output_format == OUTPUT_FORMAT_PEM )
{
if( ( ret = mbedtls_pk_write_pubkey_pem( key, output_buf, 16000 ) ) != 0 )
return( ret );
len = strlen( (char *) output_buf );
}
else
#endif
{
if( ( ret = mbedtls_pk_write_pubkey_der( key, output_buf, 16000 ) ) < 0 )
return( ret );
len = ret;
c = output_buf + sizeof(output_buf) - len;
}
if( ( f = fopen( output_file, "w" ) ) == NULL )
return( -1 );
if( fwrite( c, 1, len, f ) != len )
{
fclose( f );
return( -1 );
}
fclose( f );
return( 0 );
}
static int write_private_key( mbedtls_pk_context *key, const char *output_file )
{
int ret;
FILE *f;
unsigned char output_buf[16000];
unsigned char *c = output_buf;
size_t len = 0;
memset(output_buf, 0, 16000);
#if defined(MBEDTLS_PEM_WRITE_C)
if( opt.output_format == OUTPUT_FORMAT_PEM )
{
if( ( ret = mbedtls_pk_write_key_pem( key, output_buf, 16000 ) ) != 0 )
return( ret );
len = strlen( (char *) output_buf );
}
else
#endif
{
if( ( ret = mbedtls_pk_write_key_der( key, output_buf, 16000 ) ) < 0 )
return( ret );
len = ret;
c = output_buf + sizeof(output_buf) - len - 1;
}
if( ( f = fopen( output_file, "w" ) ) == NULL )
return( -1 );
if( fwrite( c, 1, len, f ) != len )
{
fclose( f );
return( -1 );
}
fclose( f );
return( 0 );
}
int main( int argc, char *argv[] )
{
int ret = 1;
int exit_code = MBEDTLS_EXIT_FAILURE;
char buf[1024];
int i;
char *p, *q;
mbedtls_pk_context key;
mbedtls_mpi N, P, Q, D, E, DP, DQ, QP;
/*
* Set to sane values
*/
mbedtls_pk_init( &key );
memset( buf, 0, sizeof( buf ) );
mbedtls_mpi_init( &N ); mbedtls_mpi_init( &P ); mbedtls_mpi_init( &Q );
mbedtls_mpi_init( &D ); mbedtls_mpi_init( &E ); mbedtls_mpi_init( &DP );
mbedtls_mpi_init( &DQ ); mbedtls_mpi_init( &QP );
if( argc == 0 )
{
usage:
mbedtls_printf( USAGE );
goto exit;
}
opt.mode = DFL_MODE;
opt.filename = DFL_FILENAME;
opt.output_mode = DFL_OUTPUT_MODE;
opt.output_file = DFL_OUTPUT_FILENAME;
opt.output_format = DFL_OUTPUT_FORMAT;
for( i = 1; i < argc; i++ )
{
p = argv[i];
if( ( q = strchr( p, '=' ) ) == NULL )
goto usage;
*q++ = '\0';
if( strcmp( p, "mode" ) == 0 )
{
if( strcmp( q, "private" ) == 0 )
opt.mode = MODE_PRIVATE;
else if( strcmp( q, "public" ) == 0 )
opt.mode = MODE_PUBLIC;
else
goto usage;
}
else if( strcmp( p, "output_mode" ) == 0 )
{
if( strcmp( q, "private" ) == 0 )
opt.output_mode = OUTPUT_MODE_PRIVATE;
else if( strcmp( q, "public" ) == 0 )
opt.output_mode = OUTPUT_MODE_PUBLIC;
else
goto usage;
}
else if( strcmp( p, "output_format" ) == 0 )
{
#if defined(MBEDTLS_PEM_WRITE_C)
if( strcmp( q, "pem" ) == 0 )
opt.output_format = OUTPUT_FORMAT_PEM;
else
#endif
if( strcmp( q, "der" ) == 0 )
opt.output_format = OUTPUT_FORMAT_DER;
else
goto usage;
}
else if( strcmp( p, "filename" ) == 0 )
opt.filename = q;
else if( strcmp( p, "output_file" ) == 0 )
opt.output_file = q;
else
goto usage;
}
if( opt.mode == MODE_NONE && opt.output_mode != OUTPUT_MODE_NONE )
{
mbedtls_printf( "\nCannot output a key without reading one.\n");
goto exit;
}
if( opt.mode == MODE_PUBLIC && opt.output_mode == OUTPUT_MODE_PRIVATE )
{
mbedtls_printf( "\nCannot output a private key from a public key.\n");
goto exit;
}
if( opt.mode == MODE_PRIVATE )
{
/*
* 1.1. Load the key
*/
mbedtls_printf( "\n . Loading the private key ..." );
fflush( stdout );
ret = mbedtls_pk_parse_keyfile( &key, opt.filename, NULL );
if( ret != 0 )
{
mbedtls_strerror( ret, (char *) buf, sizeof(buf) );
mbedtls_printf( " failed\n ! mbedtls_pk_parse_keyfile returned -0x%04x - %s\n\n", -ret, buf );
goto exit;
}
mbedtls_printf( " ok\n" );
/*
* 1.2 Print the key
*/
mbedtls_printf( " . Key information ...\n" );
#if defined(MBEDTLS_RSA_C)
if( mbedtls_pk_get_type( &key ) == MBEDTLS_PK_RSA )
{
mbedtls_rsa_context *rsa = mbedtls_pk_rsa( key );
if( ( ret = mbedtls_rsa_export ( rsa, &N, &P, &Q, &D, &E ) ) != 0 ||
( ret = mbedtls_rsa_export_crt( rsa, &DP, &DQ, &QP ) ) != 0 )
{
mbedtls_printf( " failed\n ! could not export RSA parameters\n\n" );
goto exit;
}
mbedtls_mpi_write_file( "N: ", &N, 16, NULL );
mbedtls_mpi_write_file( "E: ", &E, 16, NULL );
mbedtls_mpi_write_file( "D: ", &D, 16, NULL );
mbedtls_mpi_write_file( "P: ", &P, 16, NULL );
mbedtls_mpi_write_file( "Q: ", &Q, 16, NULL );
mbedtls_mpi_write_file( "DP: ", &DP, 16, NULL );
mbedtls_mpi_write_file( "DQ: ", &DQ, 16, NULL );
mbedtls_mpi_write_file( "QP: ", &QP, 16, NULL );
}
else
#endif
#if defined(MBEDTLS_ECP_C)
if( mbedtls_pk_get_type( &key ) == MBEDTLS_PK_ECKEY )
{
mbedtls_ecp_keypair *ecp = mbedtls_pk_ec( key );
mbedtls_mpi_write_file( "Q(X): ", &ecp->Q.X, 16, NULL );
mbedtls_mpi_write_file( "Q(Y): ", &ecp->Q.Y, 16, NULL );
mbedtls_mpi_write_file( "Q(Z): ", &ecp->Q.Z, 16, NULL );
mbedtls_mpi_write_file( "D : ", &ecp->d , 16, NULL );
}
else
#endif
mbedtls_printf("key type not supported yet\n");
}
else if( opt.mode == MODE_PUBLIC )
{
/*
* 1.1. Load the key
*/
mbedtls_printf( "\n . Loading the public key ..." );
fflush( stdout );
ret = mbedtls_pk_parse_public_keyfile( &key, opt.filename );
if( ret != 0 )
{
mbedtls_strerror( ret, (char *) buf, sizeof(buf) );
mbedtls_printf( " failed\n ! mbedtls_pk_parse_public_key returned -0x%04x - %s\n\n", -ret, buf );
goto exit;
}
mbedtls_printf( " ok\n" );
/*
* 1.2 Print the key
*/
mbedtls_printf( " . Key information ...\n" );
#if defined(MBEDTLS_RSA_C)
if( mbedtls_pk_get_type( &key ) == MBEDTLS_PK_RSA )
{
mbedtls_rsa_context *rsa = mbedtls_pk_rsa( key );
if( ( ret = mbedtls_rsa_export( rsa, &N, NULL, NULL,
NULL, &E ) ) != 0 )
{
mbedtls_printf( " failed\n ! could not export RSA parameters\n\n" );
goto exit;
}
mbedtls_mpi_write_file( "N: ", &N, 16, NULL );
mbedtls_mpi_write_file( "E: ", &E, 16, NULL );
}
else
#endif
#if defined(MBEDTLS_ECP_C)
if( mbedtls_pk_get_type( &key ) == MBEDTLS_PK_ECKEY )
{
mbedtls_ecp_keypair *ecp = mbedtls_pk_ec( key );
mbedtls_mpi_write_file( "Q(X): ", &ecp->Q.X, 16, NULL );
mbedtls_mpi_write_file( "Q(Y): ", &ecp->Q.Y, 16, NULL );
mbedtls_mpi_write_file( "Q(Z): ", &ecp->Q.Z, 16, NULL );
}
else
#endif
mbedtls_printf("key type not supported yet\n");
}
else
goto usage;
if( opt.output_mode == OUTPUT_MODE_PUBLIC )
{
write_public_key( &key, opt.output_file );
}
if( opt.output_mode == OUTPUT_MODE_PRIVATE )
{
write_private_key( &key, opt.output_file );
}
exit_code = MBEDTLS_EXIT_SUCCESS;
exit:
if( exit_code != MBEDTLS_EXIT_SUCCESS )
{
#ifdef MBEDTLS_ERROR_C
mbedtls_strerror( ret, buf, sizeof( buf ) );
mbedtls_printf( " - %s\n", buf );
#else
mbedtls_printf("\n");
#endif
}
mbedtls_mpi_free( &N ); mbedtls_mpi_free( &P ); mbedtls_mpi_free( &Q );
mbedtls_mpi_free( &D ); mbedtls_mpi_free( &E ); mbedtls_mpi_free( &DP );
mbedtls_mpi_free( &DQ ); mbedtls_mpi_free( &QP );
mbedtls_pk_free( &key );
#if defined(_WIN32)
mbedtls_printf( " + Press Enter to exit this program.\n" );
fflush( stdout ); getchar();
#endif
return( exit_code );
}
#endif /* MBEDTLS_PK_PARSE_C && MBEDTLS_PK_WRITE_C && MBEDTLS_FS_IO */
| YifuLiu/AliOS-Things | components/mbedtls/programs/pkey/key_app_writer.c | C | apache-2.0 | 13,003 |