1 /* 2 * Copyright (c) 2025-2025 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 SIGNATRUETOOLS_BLOCK_HEAD_H 17 #define SIGNATRUETOOLS_BLOCK_HEAD_H 18 19 #include <vector> 20 #include <string> 21 22 namespace OHOS { 23 namespace SignatureTools { 24 class BlockHead { 25 public: 26 static const int BLOCK_LEN = 8; 27 static const int ELF_BLOCK_LEN = 12; 28 static const int BIT_SIZE = 8; 29 static const int DOUBLE_BIT_SIZE = 16; 30 static const int TRIPLE_BIT_SIZE = 24; 31 static const int32_t SIGN_HEAD_LEN = 32; 32 33 public: 34 static int GetBlockLen(); 35 static int GetElfBlockLen(); 36 static std::string GetBlockHead(const char type, const char tag, const short length, const int offset); 37 static std::vector<int8_t> GetBlockHeadLittleEndian(const char type, const char tag, 38 const int length, const int offset); 39 }; 40 } // namespace SignatureTools 41 } // namespace OHOS 42 #endif