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#ifndef SYSTEM_KEYMASTER_EC_KEYMASTER1_KEY_H_ 18#define SYSTEM_KEYMASTER_EC_KEYMASTER1_KEY_H_ 19 20#include <openssl/ecdsa.h> 21 22#include <hardware/keymaster1.h> 23#include <keymaster/android_keymaster_utils.h> 24#include <keymaster/logger.h> 25#include <keymaster/ec_key_factory.h> 26#include <keymaster/soft_keymaster_context.h> 27 28#include "ec_key.h" 29#include "keymaster1_engine.h" 30 31namespace keymaster { 32 33class SoftKeymasterContext; 34 35/** 36 * EcdsaKeymaster1KeyFactory is a KeyFactory that creates and loads keys which are actually backed 37 * by a hardware keymaster1 module, but which does not support all keymaster1 digests. During 38 * generation or import any unsupported digests in the key description are silently replaced with 39 * KM_DIGEST_NONE. 40 */ 41class EcdsaKeymaster1KeyFactory : public EcKeyFactory { 42 public: 43 EcdsaKeymaster1KeyFactory(const SoftKeymasterContext* context, const Keymaster1Engine* engine); 44 45 keymaster_error_t GenerateKey(const AuthorizationSet& key_description, 46 KeymasterKeyBlob* key_blob, AuthorizationSet* hw_enforced, 47 AuthorizationSet* sw_enforced) const override; 48 49 keymaster_error_t ImportKey(const AuthorizationSet& key_description, 50 keymaster_key_format_t input_key_material_format, 51 const KeymasterKeyBlob& input_key_material, 52 KeymasterKeyBlob* output_key_blob, AuthorizationSet* hw_enforced, 53 AuthorizationSet* sw_enforced) const override; 54 55 keymaster_error_t LoadKey(const KeymasterKeyBlob& key_material, 56 const AuthorizationSet& additional_params, 57 const AuthorizationSet& hw_enforced, 58 const AuthorizationSet& sw_enforced, 59 UniquePtr<Key>* key) const override; 60 61 OperationFactory* GetOperationFactory(keymaster_purpose_t purpose) const override; 62 63 private: 64 const Keymaster1Engine* engine_; 65 66 std::unique_ptr<OperationFactory> sign_factory_; 67 std::unique_ptr<OperationFactory> verify_factory_; 68}; 69 70class EcdsaKeymaster1Key : public EcKey { 71 public: 72 EcdsaKeymaster1Key(EC_KEY* ecdsa_key, const AuthorizationSet& hw_enforced, 73 const AuthorizationSet& sw_enforced, keymaster_error_t* error) 74 : EcKey(ecdsa_key, hw_enforced, sw_enforced, error) {} 75}; 76 77} // namespace keymaster 78 79#endif // SYSTEM_KEYMASTER_ECDSA_KEYMASTER1_KEY_H_ 80