1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef __CORE_FS_MGR_PRIV_SHA_H 18 #define __CORE_FS_MGR_PRIV_SHA_H 19 20 #include <openssl/sha.h> 21 22 class SHA256Hasher { 23 private: 24 SHA256_CTX sha256_ctx; 25 uint8_t hash[SHA256_DIGEST_LENGTH]; 26 27 public: 28 enum { DIGEST_SIZE = SHA256_DIGEST_LENGTH }; 29 30 SHA256Hasher() { SHA256_Init(&sha256_ctx); } 31 32 void update(const uint8_t* data, size_t data_size) { 33 SHA256_Update(&sha256_ctx, data, data_size); 34 } 35 36 const uint8_t* finalize() { 37 SHA256_Final(hash, &sha256_ctx); 38 return hash; 39 } 40 }; 41 42 class SHA512Hasher { 43 private: 44 SHA512_CTX sha512_ctx; 45 uint8_t hash[SHA512_DIGEST_LENGTH]; 46 47 public: 48 enum { DIGEST_SIZE = SHA512_DIGEST_LENGTH }; 49 50 SHA512Hasher() { SHA512_Init(&sha512_ctx); } 51 52 void update(const uint8_t* data, size_t data_size) { 53 SHA512_Update(&sha512_ctx, data, data_size); 54 } 55 56 const uint8_t* finalize() { 57 SHA512_Final(hash, &sha512_ctx); 58 return hash; 59 } 60 }; 61 62 #endif /* __CORE_FS_MGR_PRIV_SHA_H */ 63
