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 <UniquePtr.h> 21 22 #include <hardware/keymaster_defs.h> 23 #include <keymaster/authorization_set.h> 24 25 namespace keymaster { 26 27 class Key { 28 public: 29 virtual ~Key() {} 30 31 /** 32 * Return a copy of raw key material, in the key's preferred binary format. 33 */ 34 virtual keymaster_error_t key_material(UniquePtr<uint8_t[]>*, size_t* size) const = 0; 35 36 /** 37 * Return a copy of raw key material, in the specified format. 38 */ 39 virtual keymaster_error_t formatted_key_material(keymaster_key_format_t format, 40 UniquePtr<uint8_t[]>* material, 41 size_t* size) const = 0; 42 43 const AuthorizationSet& authorizations() const { return authorizations_; } 44 45 protected: 46 Key(const AuthorizationSet& hw_enforced, const AuthorizationSet& sw_enforced, 47 keymaster_error_t* error); 48 49 private: 50 AuthorizationSet authorizations_; 51 }; 52 53 } // namespace keymaster 54 55 #endif // SYSTEM_KEYMASTER_KEY_H_ 56
