1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "app_sha256.h"
17 #include "securec.h"
18
AppSha256Init(AppSha256Context * sha256)19 void AppSha256Init(AppSha256Context *sha256)
20 {
21 if (sha256 == NULL) {
22 return;
23 }
24
25 mbedtls_sha256_init(&sha256->context);
26 mbedtls_sha256_starts(&sha256->context, APP_SHA256_FLAG);
27 return;
28 }
29
AppSha256Update(AppSha256Context * sha256,const uint8 * buffer,uint32 length)30 void AppSha256Update(AppSha256Context *sha256, const uint8 *buffer, uint32 length)
31 {
32 if ((buffer == NULL) || (sha256 == NULL)) {
33 return;
34 }
35
36 mbedtls_sha256_update(&sha256->context, buffer, length);
37 return;
38 }
39
AppSha256Finish(AppSha256Context * sha256,uint8 * hashOut)40 void AppSha256Finish(AppSha256Context *sha256, uint8 *hashOut)
41 {
42 if ((hashOut == NULL) || (sha256 == NULL)) {
43 return;
44 }
45
46 mbedtls_sha256_finish(&sha256->context, hashOut);
47 return;
48 }
49