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      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_RSA_KEYMASTER0_KEY_H_
     18 #define SYSTEM_KEYMASTER_RSA_KEYMASTER0_KEY_H_
     19 
     20 #include <openssl/rsa.h>
     21 
     22 #include <keymaster/km_openssl/rsa_key.h>
     23 #include <keymaster/km_openssl/rsa_key_factory.h>
     24 
     25 namespace keymaster {
     26 
     27 class Keymaster0Engine;
     28 
     29 /**
     30  * An RsaKeyFactory which can delegate key generation, importing and loading operations to a
     31  * keymaster0-backed OpenSSL engine.
     32  */
     33 class RsaKeymaster0KeyFactory : public RsaKeyFactory {
     34     typedef RsaKeyFactory super;
     35 
     36   public:
     37     RsaKeymaster0KeyFactory(const SoftwareKeyBlobMaker* blob_maker,
     38                             const Keymaster0Engine* engine);
     39 
     40     keymaster_error_t GenerateKey(const AuthorizationSet& key_description,
     41                                   KeymasterKeyBlob* key_blob, AuthorizationSet* hw_enforced,
     42                                   AuthorizationSet* sw_enforced) const override;
     43 
     44     keymaster_error_t ImportKey(const AuthorizationSet& key_description,
     45                                 keymaster_key_format_t input_key_material_format,
     46                                 const KeymasterKeyBlob& input_key_material,
     47                                 KeymasterKeyBlob* output_key_blob, AuthorizationSet* hw_enforced,
     48                                 AuthorizationSet* sw_enforced) const override;
     49 
     50     keymaster_error_t LoadKey(KeymasterKeyBlob&& key_material,
     51                               const AuthorizationSet& additional_params,
     52                               AuthorizationSet&& hw_enforced,
     53                               AuthorizationSet&& sw_enforced,
     54                               UniquePtr<Key>* key) const override;
     55 
     56   private:
     57     const Keymaster0Engine* engine_;
     58 };
     59 
     60 class RsaKeymaster0Key : public RsaKey {
     61   public:
     62     RsaKeymaster0Key(RSA* rsa_key, AuthorizationSet&& hw_enforced,
     63                      AuthorizationSet&& sw_enforced,
     64                      const KeyFactory* key_factory)
     65         : RsaKey(rsa_key, move(hw_enforced), move(sw_enforced), key_factory) {}
     66 };
     67 
     68 }  // namespace keymaster
     69 
     70 #endif  // SYSTEM_KEYMASTER_RSA_KEYMASTER0_KEY_H_
     71