1 // Copyright 2012 Google Inc. All Rights Reserved. 2 // 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 // A SecretEncoder implementation that uses hexadecimal encoding. This encoding 16 // has 2 symbols per byte since each hex character uses 4 bits. 17 18 #include "polo/encoding/hexadecimalencoder.h" 19 20 #include <string> 21 #include <vector> 22 #include "polo/util/poloutil.h" 23 24 namespace polo { 25 namespace encoding { 26 EncodeToString(const std::vector<uint8_t> & secret) const27std::string HexadecimalEncoder::EncodeToString( 28 const std::vector<uint8_t>& secret) const { 29 return polo::util::PoloUtil::BytesToHexString(&secret[0], secret.size()); 30 } 31 DecodeToBytes(const std::string & secret) const32std::vector<uint8_t> HexadecimalEncoder::DecodeToBytes( 33 const std::string& secret) const { 34 uint8_t* bytes; 35 size_t length = polo::util::PoloUtil::HexStringToBytes(secret, bytes); 36 std::vector<uint8_t> decoded(bytes, bytes + length); 37 delete[] bytes; 38 39 return decoded; 40 } 41 symbols_per_byte() const42size_t HexadecimalEncoder::symbols_per_byte() const { 43 return HEX_SYMBOLS_PER_BYTE; 44 } 45 46 } // namespace encoding 47 } // namespace polo 48