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      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_ASYMMETRIC_KEY_H
     18 #define SYSTEM_KEYMASTER_ASYMMETRIC_KEY_H
     19 
     20 #include <openssl/evp.h>
     21 
     22 #include "key.h"
     23 
     24 namespace keymaster {
     25 
     26 class AsymmetricKey : public Key {
     27   public:
     28     AsymmetricKey(const AuthorizationSet& hw_enforced, const AuthorizationSet& sw_enforced,
     29                   keymaster_error_t* error)
     30         : Key(hw_enforced, sw_enforced, error) {}
     31 
     32     keymaster_error_t formatted_key_material(keymaster_key_format_t format,
     33                                              UniquePtr<uint8_t[]>* material,
     34                                              size_t* size) const override;
     35 
     36     keymaster_error_t GenerateAttestation(const KeymasterContext& context,
     37                                           const AuthorizationSet& attest_params,
     38                                           const AuthorizationSet& tee_enforced,
     39                                           const AuthorizationSet& sw_enforced,
     40                                           keymaster_cert_chain_t* certificate_chain) const override;
     41 
     42     virtual bool InternalToEvp(EVP_PKEY* pkey) const = 0;
     43     virtual bool EvpToInternal(const EVP_PKEY* pkey) = 0;
     44 };
     45 
     46 }  // namespace keymaster
     47 
     48 #endif  // SYSTEM_KEYMASTER_ASYMMETRIC_KEY_H
     49