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 #ifndef APP_SHA256_H
17 #define APP_SHA256_H
18 
19 #include "ohos_types.h"
20 #include "mbedtls/sha256.h"
21 
22 #ifdef __cplusplus
23 #if __cplusplus
24 extern "C" {
25 #endif
26 #endif /* __cplusplus */
27 
28 #define APP_SHA256_FLAG 0
29 #define APP_SHA256_DIGET_LENGTH 32
30 
31 typedef struct {
32     mbedtls_sha256_context context;
33 } AppSha256Context;
34 
35 /* sha256 Initialization */
36 void AppSha256Init(AppSha256Context* sha256);
37 
38 /* sha256 calculate data */
39 void AppSha256Update(AppSha256Context* sha256, const uint8* buffer, uint32 length);
40 
41 /* sha256 get calculation results */
42 void AppSha256Finish(AppSha256Context* sha256, uint8* hashOut);
43 
44 #ifdef __cplusplus
45 #if __cplusplus
46 }
47 #endif
48 #endif
49 
50 #endif /* End of #ifndef APP_SHA256_H */