Viewing file:  cipher_sm4_hw.c (4.07 KB) -rw-r--r--
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/*
* Copyright 2019-2022 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include "cipher_sm4.h"
static int cipher_hw_sm4_initkey(PROV_CIPHER_CTX *ctx,
const unsigned char *key, size_t keylen)
{
PROV_SM4_CTX *sctx = (PROV_SM4_CTX *)ctx;
SM4_KEY *ks = &sctx->ks.ks;
ctx->ks = ks;
if (ctx->enc
|| (ctx->mode != EVP_CIPH_ECB_MODE
&& ctx->mode != EVP_CIPH_CBC_MODE)) {
#ifdef HWSM4_CAPABLE
if (HWSM4_CAPABLE) {
HWSM4_set_encrypt_key(key, ks);
ctx->block = (block128_f)HWSM4_encrypt;
ctx->stream.cbc = NULL;
#ifdef HWSM4_cbc_encrypt
if (ctx->mode == EVP_CIPH_CBC_MODE)
ctx->stream.cbc = (cbc128_f)HWSM4_cbc_encrypt;
else
#endif
#ifdef HWSM4_ecb_encrypt
if (ctx->mode == EVP_CIPH_ECB_MODE)
ctx->stream.ecb = (ecb128_f)HWSM4_ecb_encrypt;
else
#endif
#ifdef HWSM4_ctr32_encrypt_blocks
if (ctx->mode == EVP_CIPH_CTR_MODE)
ctx->stream.ctr = (ctr128_f)HWSM4_ctr32_encrypt_blocks;
else
#endif
(void)0; /* terminate potentially open 'else' */
} else
#endif
#ifdef VPSM4_CAPABLE
if (VPSM4_CAPABLE) {
vpsm4_set_encrypt_key(key, ks);
ctx->block = (block128_f)vpsm4_encrypt;
ctx->stream.cbc = NULL;
if (ctx->mode == EVP_CIPH_CBC_MODE)
ctx->stream.cbc = (cbc128_f)vpsm4_cbc_encrypt;
else if (ctx->mode == EVP_CIPH_ECB_MODE)
ctx->stream.ecb = (ecb128_f)vpsm4_ecb_encrypt;
else if (ctx->mode == EVP_CIPH_CTR_MODE)
ctx->stream.ctr = (ctr128_f)vpsm4_ctr32_encrypt_blocks;
} else
#endif
{
ossl_sm4_set_key(key, ks);
ctx->block = (block128_f)ossl_sm4_encrypt;
}
} else {
#ifdef HWSM4_CAPABLE
if (HWSM4_CAPABLE) {
HWSM4_set_decrypt_key(key, ks);
ctx->block = (block128_f)HWSM4_decrypt;
ctx->stream.cbc = NULL;
#ifdef HWSM4_cbc_encrypt
if (ctx->mode == EVP_CIPH_CBC_MODE)
ctx->stream.cbc = (cbc128_f)HWSM4_cbc_encrypt;
#endif
#ifdef HWSM4_ecb_encrypt
if (ctx->mode == EVP_CIPH_ECB_MODE)
ctx->stream.ecb = (ecb128_f)HWSM4_ecb_encrypt;
#endif
} else
#endif
#ifdef VPSM4_CAPABLE
if (VPSM4_CAPABLE) {
vpsm4_set_decrypt_key(key, ks);
ctx->block = (block128_f)vpsm4_decrypt;
ctx->stream.cbc = NULL;
if (ctx->mode == EVP_CIPH_CBC_MODE)
ctx->stream.cbc = (cbc128_f)vpsm4_cbc_encrypt;
else if (ctx->mode == EVP_CIPH_ECB_MODE)
ctx->stream.ecb = (ecb128_f)vpsm4_ecb_encrypt;
} else
#endif
{
ossl_sm4_set_key(key, ks);
ctx->block = (block128_f)ossl_sm4_decrypt;
}
}
return 1;
}
IMPLEMENT_CIPHER_HW_COPYCTX(cipher_hw_sm4_copyctx, PROV_SM4_CTX)
# define PROV_CIPHER_HW_sm4_mode(mode) \
static const PROV_CIPHER_HW sm4_##mode = { \
cipher_hw_sm4_initkey, \
ossl_cipher_hw_generic_##mode, \
cipher_hw_sm4_copyctx \
}; \
const PROV_CIPHER_HW *ossl_prov_cipher_hw_sm4_##mode(size_t keybits) \
{ \
return &sm4_##mode; \
}
PROV_CIPHER_HW_sm4_mode(cbc)
PROV_CIPHER_HW_sm4_mode(ecb)
PROV_CIPHER_HW_sm4_mode(ofb128)
PROV_CIPHER_HW_sm4_mode(cfb128)
PROV_CIPHER_HW_sm4_mode(ctr)
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