1 /*
2 * This file is part of the openHiTLS project.
3 *
4 * openHiTLS is licensed under the Mulan PSL v2.
5 * You can use this software according to the terms and conditions of the Mulan PSL v2.
6 * You may obtain a copy of Mulan PSL v2 at:
7 *
8 * http://license.coscl.org.cn/MulanPSL2
9 *
10 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
11 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
12 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
13 * See the Mulan PSL v2 for more details.
14 */
15
16 #include "hitls_build.h"
17 #if defined(HITLS_CRYPTO_SM4) && defined(HITLS_CRYPTO_CBC)
18
19 #include "bsl_err_internal.h"
20 #include "crypt_sm4.h"
21 #include "crypt_errno.h"
22 #include "crypt_modes_cbc.h"
23 #include "modes_local.h"
24
MODE_SM4_CBC_Encrypt(MODES_CipherCommonCtx * ctx,const uint8_t * in,uint8_t * out,uint32_t len)25 int32_t MODE_SM4_CBC_Encrypt(MODES_CipherCommonCtx *ctx, const uint8_t *in, uint8_t *out, uint32_t len)
26 {
27 if (ctx == NULL || in == NULL || out == NULL) {
28 BSL_ERR_PUSH_ERROR(CRYPT_NULL_INPUT);
29 return CRYPT_NULL_INPUT;
30 }
31 return CRYPT_SM4_CBC_Encrypt(ctx->ciphCtx, in, out, len, ctx->iv);
32 }
33
MODE_SM4_CBC_Decrypt(MODES_CipherCommonCtx * ctx,const uint8_t * in,uint8_t * out,uint32_t len)34 int32_t MODE_SM4_CBC_Decrypt(MODES_CipherCommonCtx *ctx, const uint8_t *in, uint8_t *out, uint32_t len)
35 {
36 if (ctx == NULL || in == NULL || out == NULL) {
37 BSL_ERR_PUSH_ERROR(CRYPT_NULL_INPUT);
38 return CRYPT_NULL_INPUT;
39 }
40 return CRYPT_SM4_CBC_Decrypt(ctx->ciphCtx, in, out, len, ctx->iv);
41 }
42
SM4_CBC_Update(MODES_CipherCtx * modeCtx,const uint8_t * in,uint32_t inLen,uint8_t * out,uint32_t * outLen)43 int32_t SM4_CBC_Update(MODES_CipherCtx *modeCtx, const uint8_t *in, uint32_t inLen, uint8_t *out, uint32_t *outLen)
44 {
45 return MODES_CipherUpdate(modeCtx, modeCtx->enc ? MODE_SM4_CBC_Encrypt : MODE_SM4_CBC_Decrypt,
46 in, inLen, out, outLen);
47 }
48
SM4_CBC_Final(MODES_CipherCtx * modeCtx,uint8_t * out,uint32_t * outLen)49 int32_t SM4_CBC_Final(MODES_CipherCtx *modeCtx, uint8_t *out, uint32_t *outLen)
50 {
51 return MODES_CipherFinal(modeCtx, modeCtx->enc ? MODE_SM4_CBC_Encrypt : MODE_SM4_CBC_Decrypt, out, outLen);
52 }
53
SM4_CBC_InitCtx(MODES_CipherCtx * modeCtx,const uint8_t * key,uint32_t keyLen,const uint8_t * iv,uint32_t ivLen,bool enc)54 int32_t SM4_CBC_InitCtx(MODES_CipherCtx *modeCtx, const uint8_t *key, uint32_t keyLen, const uint8_t *iv,
55 uint32_t ivLen, bool enc)
56 {
57 void *setKey = enc ? MODES_SM4_SetEncryptKey : MODES_SM4_SetDecryptKey;
58 return MODES_CipherInitCtx(modeCtx, setKey, &modeCtx->commonCtx, key, keyLen, iv, ivLen, enc);
59 }
60
61 #endif