1 /* 2 * Copyright 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 #pragma once 18 19 #include <keymaster/key_factory.h> 20 21 namespace keymaster { 22 23 class KeymasterContext; 24 25 /** 26 * Abstract base for KeyFactories that handle asymmetric keys. 27 */ 28 class AsymmetricKey; 29 class AsymmetricKeyFactory : public KeyFactory { 30 public: AsymmetricKeyFactory(const KeymasterContext & context)31 explicit AsymmetricKeyFactory(const KeymasterContext& context) : context_(context) {} 32 keymaster_error_t LoadKey(KeymasterKeyBlob&& key_material, 33 const AuthorizationSet& additional_params, 34 AuthorizationSet&& hw_enforced, // 35 AuthorizationSet&& sw_enforced, // 36 UniquePtr<Key>* key) const override; 37 38 virtual keymaster_error_t CreateEmptyKey(AuthorizationSet&& hw_enforced, 39 AuthorizationSet&& sw_enforced, 40 UniquePtr<AsymmetricKey>* key) const = 0; 41 42 virtual keymaster_algorithm_t keymaster_key_type() const = 0; 43 44 virtual const keymaster_key_format_t* 45 SupportedImportFormats(size_t* format_count) const override; 46 virtual const keymaster_key_format_t* 47 SupportedExportFormats(size_t* format_count) const override; 48 49 protected: 50 const KeymasterContext& context_; 51 }; 52 53 } // namespace keymaster 54