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:
RsaKeymaster0Key(RSA * rsa_key,AuthorizationSet && hw_enforced,AuthorizationSet && sw_enforced,const KeyFactory * key_factory)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