1 /*
2  * Copyright (c) 2023-2024 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 #ifndef STORAGE_DAEMON_CRYPTO_OPENSSL_CRYPTO_H
16 #define STORAGE_DAEMON_CRYPTO_OPENSSL_CRYPTO_H
17 
18 #include "key_blob.h"
19 
20 namespace OHOS {
21 namespace StorageDaemon {
22 constexpr size_t GCM_MAC_BYTES = 16;
23 constexpr size_t GCM_NONCE_BYTES = 12;
24 constexpr int AES_256_HASH_RANDOM_SIZE = 32;
25 constexpr int OPENSSL_SUCCESS_FLAG = 1;
26 class OpensslCrypto {
27 public:
28     static bool AESDecrypt(const KeyBlob &preKey, KeyContext &keyContext_, KeyBlob &plainText);
29     static bool AESEncrypt(const KeyBlob &preKey, const KeyBlob &plainText, KeyContext &keyContext_);
30     static KeyBlob HashWithPrefix(const KeyBlob &prefix, const KeyBlob &payload, uint32_t length);
31 };
32 } // namespace StorageDaemon
33 } // namespace OHOS
34 #endif // STORAGE_DAEMON_CRYPTO_OPENSSL_CRYPTO_H