1 /* 2 * Copyright (C) 2015 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 RECOVERY_PRINT_SHA1_H 18 #define RECOVERY_PRINT_SHA1_H 19 20 #include <stdint.h> 21 #include <string> 22 23 #include <openssl/sha.h> 24 25 static std::string print_sha1(const uint8_t* sha1, size_t len) { 26 const char* hex = "0123456789abcdef"; 27 std::string result = ""; 28 for (size_t i = 0; i < len; ++i) { 29 result.push_back(hex[(sha1[i] >> 4) & 0xf]); 30 result.push_back(hex[sha1[i] & 0xf]); 31 } 32 return result; 33 } 34 35 [[maybe_unused]] static std::string print_sha1(const uint8_t sha1[SHA_DIGEST_LENGTH]) { 36 return print_sha1(sha1, SHA_DIGEST_LENGTH); 37 } 38 39 [[maybe_unused]] static std::string short_sha1(const uint8_t sha1[SHA_DIGEST_LENGTH]) { 40 return print_sha1(sha1, 4); 41 } 42 43 [[maybe_unused]] static std::string print_hex(const uint8_t* bytes, size_t len) { 44 return print_sha1(bytes, len); 45 } 46 47 #endif // RECOVERY_PRINT_SHA1_H 48
