text: /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   * All rights reserved.
   *
   * This package is an SSL implementation written
   * by Eric Young (eay@cryptsoft.com).
   * The implementation was written so as to conform with Netscapes SSL.
   *
   * This library is free for commercial and non-commercial use as long as
   * the following conditions are aheared to.  The following conditions
   * apply to all code found in this distribution, be it the RC4, RSA,
   * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
   * included with this distribution is covered by the same copyright terms
   * except that the holder is Tim Hudson (tjh@cryptsoft.com).
   *
   * Copyright remains Eric Young's, and as such any Copyright notices in
   * the code are not to be removed.
   * If this package is used in a product, Eric Young should be given attribution
   * as the author of the parts of the library used.
   * This can be in the form of a textual message at program startup or
   * in documentation (online or textual) provided with the package.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *    "This product includes cryptographic software written by
   *     Eric Young (eay@cryptsoft.com)"
   *    The word 'cryptographic' can be left out if the rouines from the library
   *    being used are not cryptographic related :-).
   * 4. If you include any Windows specific code (or a derivative thereof) from
   *    the apps directory (application code) you must include an acknowledgement:
   *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
   *
   * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   * The licence and distribution terms for any publically available version or
   * derivative of this code cannot be changed.  i.e. this code cannot simply be
   * copied and put under another distribution licence
   * [including the GNU Public Licence.] */
  
  #ifndef OPENSSL_HEADER_CAST_H
  #define OPENSSL_HEADER_CAST_H
  
  #include "CNIOBoringSSL_base.h"
  
  #ifdef  __cplusplus
  extern "C" {
  #endif
  
  
  #define CAST_ENCRYPT 1
  #define CAST_DECRYPT 0
  
  #define CAST_BLOCK 8
  #define CAST_KEY_LENGTH 16
  
  typedef struct cast_key_st {
    uint32_t data[32];
    int short_key;  // Use reduced rounds for short key
  } CAST_KEY;
  
  OPENSSL_EXPORT void CAST_set_key(CAST_KEY *key, size_t len,
                                   const uint8_t *data);
  OPENSSL_EXPORT void CAST_ecb_encrypt(const uint8_t *in, uint8_t *out,
                                       const CAST_KEY *key, int enc);
  OPENSSL_EXPORT void CAST_encrypt(uint32_t *data, const CAST_KEY *key);
  OPENSSL_EXPORT void CAST_decrypt(uint32_t *data, const CAST_KEY *key);
  OPENSSL_EXPORT void CAST_cbc_encrypt(const uint8_t *in, uint8_t *out,
                                       size_t length, const CAST_KEY *ks,
                                       uint8_t *iv, int enc);
  
  OPENSSL_EXPORT void CAST_cfb64_encrypt(const uint8_t *in, uint8_t *out,
                                         size_t length, const CAST_KEY *schedule,
                                         uint8_t *ivec, int *num, int enc);
  
  #ifdef  __cplusplus
  }
  #endif
  
  #endif  // OPENSSL_HEADER_CAST_H
  