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_EC_KEY_H_
18 #define SYSTEM_KEYMASTER_EC_KEY_H_
19 
20 #include <openssl/ec.h>
21 
22 #include "asymmetric_key.h"
23 #include "openssl_utils.h"
24 
25 namespace keymaster {
26 
27 class EcdsaOperationFactory;
28 
29 class EcKey : public AsymmetricKey {
30   public:
EcKey(const AuthorizationSet & hw_enforced,const AuthorizationSet & sw_enforced,keymaster_error_t * error)31     EcKey(const AuthorizationSet& hw_enforced, const AuthorizationSet& sw_enforced,
32           keymaster_error_t* error)
33         : AsymmetricKey(hw_enforced, sw_enforced, error) {}
34 
35     bool InternalToEvp(EVP_PKEY* pkey) const override;
36     bool EvpToInternal(const EVP_PKEY* pkey) override;
37 
key()38     EC_KEY* key() const { return EC_KEY_dup(ec_key_.get()); }
39 
40   protected:
EcKey(EC_KEY * ec_key,const AuthorizationSet & hw_enforced,const AuthorizationSet & sw_enforced,keymaster_error_t * error)41     EcKey(EC_KEY* ec_key, const AuthorizationSet& hw_enforced, const AuthorizationSet& sw_enforced,
42           keymaster_error_t* error)
43         : AsymmetricKey(hw_enforced, sw_enforced, error), ec_key_(ec_key) {}
44 
45   private:
46     UniquePtr<EC_KEY, EC_Delete> ec_key_;
47 };
48 
49 }  // namespace keymaster
50 
51 #endif  // SYSTEM_KEYMASTER_EC_KEY_H_
52