


#include "internal/deprecated.h"



#include "cipher_aes_ccm.h"
#include "prov/implementations.h"
#include "prov/providercommon.h"

static void *aes_ccm_newctx(void *provctx, size_t keybits)
{
    PROV_AES_CCM_CTX *ctx;

    if (!ossl_prov_is_running())
        return NULL;

    ctx = OPENSSL_zalloc(sizeof(*ctx));
    if (ctx != NULL)
        ossl_ccm_initctx(&ctx->base, keybits, ossl_prov_aes_hw_ccm(keybits));
    return ctx;
}

static void *aes_ccm_dupctx(void *provctx)
{
    PROV_AES_CCM_CTX *ctx = provctx;
    PROV_AES_CCM_CTX *dupctx = NULL;

    if (ctx == NULL)
        return NULL;
    dupctx = OPENSSL_memdup(provctx, sizeof(*ctx));
    if (dupctx == NULL)
        return NULL;
    
    dupctx->base.ccm_ctx.key = &dupctx->ccm.ks.ks;

    return dupctx;
}

static OSSL_FUNC_cipher_freectx_fn aes_ccm_freectx;
static void aes_ccm_freectx(void *vctx)
{
    PROV_AES_CCM_CTX *ctx = (PROV_AES_CCM_CTX *)vctx;

    OPENSSL_clear_free(ctx,  sizeof(*ctx));
}


IMPLEMENT_aead_cipher(aes, ccm, CCM, AEAD_FLAGS, 128, 8, 96);

IMPLEMENT_aead_cipher(aes, ccm, CCM, AEAD_FLAGS, 192, 8, 96);

IMPLEMENT_aead_cipher(aes, ccm, CCM, AEAD_FLAGS, 256, 8, 96);
