1 /* 2 * Copyright 2018 Google LLC 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 * https://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 FCP_SECAGG_SHARED_KEY_H_ 18 #define FCP_SECAGG_SHARED_KEY_H_ 19 20 #include <cstdint> 21 #include <string> 22 23 namespace fcp { 24 namespace secagg { 25 // An immutable type that encapsulates a key to be used with OpenSSL. Stores the 26 // key as std::string, but for better interaction with the OpenSSL API, the Key 27 // API treats the key as either a string or a const uint8_t*. 28 // 29 // Note that this doesn't replace any OpenSSL structure, it simply allows for 30 // storage of keys at rest without needing to store associated OpenSSL data. 31 class Key { 32 public: Key()33 Key() : data_("") {} 34 Key(const uint8_t * data,int size)35 Key(const uint8_t* data, int size) 36 : data_(reinterpret_cast<const char*>(data), size) {} 37 data()38 inline const uint8_t* data() const { 39 return reinterpret_cast<const uint8_t*>(data_.c_str()); 40 } 41 size()42 inline const int size() const { return data_.size(); } 43 AsString()44 inline const std::string AsString() const { return data_; } 45 46 friend inline bool operator==(const Key& lhs, const Key& rhs) { 47 return lhs.data_ == rhs.data_; 48 } 49 50 private: 51 std::string data_; // The binary key data. 52 }; 53 } // namespace secagg 54 } // namespace fcp 55 56 #endif // FCP_SECAGG_SHARED_KEY_H_ 57