1 /* 2 * Copyright 2014 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 SYSTEM_KEYMASTER_KEY_H_ 18 #define SYSTEM_KEYMASTER_KEY_H_ 19 20 #include <keymaster/authorization_set.h> 21 #include <keymaster/keymaster_defs.h> 22 #include <keymaster/logger.h> 23 24 namespace keymaster { 25 26 class KeyBlob; 27 class Operation; 28 29 class Key { 30 public: 31 static Key* CreateKey(const KeyBlob& blob, const Logger& logger, keymaster_error_t* error); 32 static Key* GenerateKey(const AuthorizationSet& key_description, const Logger& logger, 33 keymaster_error_t* error); 34 static Key* ImportKey(const AuthorizationSet& key_description, 35 keymaster_key_format_t key_format, const uint8_t* key_data, 36 size_t key_data_length, const Logger& logger, keymaster_error_t* error); 37 38 virtual ~Key() {} 39 virtual Operation* CreateOperation(keymaster_purpose_t purpose, keymaster_error_t* error) = 0; 40 41 /** 42 * Return a copy of raw key material, in the key's preferred binary format. 43 */ 44 virtual keymaster_error_t key_material(UniquePtr<uint8_t[]>*, size_t* size) const = 0; 45 46 /** 47 * Return a copy of raw key material, in the specified format. 48 */ 49 virtual keymaster_error_t formatted_key_material(keymaster_key_format_t format, 50 UniquePtr<uint8_t[]>* material, 51 size_t* size) const = 0; 52 53 const AuthorizationSet& authorizations() const { return authorizations_; } 54 55 protected: 56 Key(const KeyBlob& blob, const Logger& logger); 57 Key(const AuthorizationSet& authorizations, const Logger& logger) 58 : logger_(logger), authorizations_(authorizations) {} 59 60 const Logger& logger_; 61 62 private: 63 AuthorizationSet authorizations_; 64 }; 65 66 } // namespace keymaster 67 68 #endif // SYSTEM_KEYMASTER_KEY_H_ 69
