1 /*
2  * Copyright (c) 2023 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 SHA256_UTILS_H
17 #define SHA256_UTILS_H
18 
19 #include <string>
20 
21 #include "securec.h"
22 
23 #include "update_log.h"
24 
25 namespace OHOS {
26 namespace UpdateEngine {
27 class Sha256Utils {
28 public:
29     static std::string CalculateHashCode(std::string inputStr);
30     static bool CheckFileSha256String(const std::string &fileName, const std::string &sha256String);
31 
32 private:
33     static bool GetFileSha256Str(const std::string &fileName, char *sha256Result, uint32_t len);
34     static bool GetDigestFromFile(const char *fileName, unsigned char digest[]);
35     static bool Sha256Calculate(const unsigned char *input, int len, char *componentId, int componentIdLen);
36     static bool TransDigestToSha256Result(char *sha256Result, uint32_t componentIdLen, const unsigned char *digest);
37 };
38 } // namespace UpdateEngine
39 } // namespace OHOS
40 #endif // SHA256_UTILS_H