1 /*
2 * Copyright (c) 2024 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 "openssl_wrapper.h"
17
18 #include <openssl/rand.h>
19 #include <openssl/sha.h>
20 #include <stdlib.h>
21 #include <string.h>
22
23 #include "securec.h"
24
25 #include "asset_log.h"
26
27 // The caller should ensure the memory safety, that the points should point at valid memory.
Sha256(const uint8_t * input,uint32_t intputLen,uint8_t * output)28 void Sha256(const uint8_t *input, uint32_t intputLen, uint8_t *output)
29 {
30 if (input == NULL || intputLen == 0 || output == NULL) {
31 LOGE("invalid input for sha256");
32 return;
33 }
34
35 (void)SHA256((const unsigned char *)input, intputLen, (unsigned char *)output);
36 }
37
GenerateRandom(uint8_t * random,uint32_t randomLen)38 int32_t GenerateRandom(uint8_t *random, uint32_t randomLen)
39 {
40 if (RAND_priv_bytes(random, randomLen) < 0) {
41 LOGE("Generate random failed!");
42 return -1;
43 }
44 return 0;
45 }
46