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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CRYPTO_EC_PRIVATE_KEY_H_ | 5 #ifndef CRYPTO_EC_PRIVATE_KEY_H_ |
6 #define CRYPTO_EC_PRIVATE_KEY_H_ | 6 #define CRYPTO_EC_PRIVATE_KEY_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
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35 ~ECPrivateKey(); | 35 ~ECPrivateKey(); |
36 | 36 |
37 // Returns whether the system supports elliptic curve cryptography. | 37 // Returns whether the system supports elliptic curve cryptography. |
38 static bool IsSupported(); | 38 static bool IsSupported(); |
39 | 39 |
40 // Creates a new random instance. Can return NULL if initialization fails. | 40 // Creates a new random instance. Can return NULL if initialization fails. |
41 // The created key will use the NIST P-256 curve. | 41 // The created key will use the NIST P-256 curve. |
42 // TODO(mattm): Add a curve parameter. | 42 // TODO(mattm): Add a curve parameter. |
43 static ECPrivateKey* Create(); | 43 static ECPrivateKey* Create(); |
44 | 44 |
45 #if defined(USE_NSS) | |
46 // Creates a new random instance in |slot|. Can return NULL if initialization | |
47 // fails. The created key is permanent and is not exportable in plaintext | |
48 // form. | |
49 static ECPrivateKey* CreateSensitive(PK11SlotInfo* slot); | |
50 #endif | |
51 | |
52 // Creates a new instance by importing an existing key pair. | 45 // Creates a new instance by importing an existing key pair. |
53 // The key pair is given as an ASN.1-encoded PKCS #8 EncryptedPrivateKeyInfo | 46 // The key pair is given as an ASN.1-encoded PKCS #8 EncryptedPrivateKeyInfo |
54 // block and an X.509 SubjectPublicKeyInfo block. | 47 // block and an X.509 SubjectPublicKeyInfo block. |
55 // Returns NULL if initialization fails. | 48 // Returns NULL if initialization fails. |
56 static ECPrivateKey* CreateFromEncryptedPrivateKeyInfo( | 49 static ECPrivateKey* CreateFromEncryptedPrivateKeyInfo( |
57 const std::string& password, | 50 const std::string& password, |
58 const std::vector<uint8>& encrypted_private_key_info, | 51 const std::vector<uint8>& encrypted_private_key_info, |
59 const std::vector<uint8>& subject_public_key_info); | 52 const std::vector<uint8>& subject_public_key_info); |
60 | 53 |
61 #if defined(USE_NSS) | |
62 // Creates a new instance in |slot| by importing an existing key pair. | |
63 // The key pair is given as an ASN.1-encoded PKCS #8 EncryptedPrivateKeyInfo | |
64 // block and an X.509 SubjectPublicKeyInfo block. | |
65 // This can return NULL if initialization fails. The created key is permanent | |
66 // and is not exportable in plaintext form. | |
67 static ECPrivateKey* CreateSensitiveFromEncryptedPrivateKeyInfo( | |
68 PK11SlotInfo* slot, | |
69 const std::string& password, | |
70 const std::vector<uint8>& encrypted_private_key_info, | |
71 const std::vector<uint8>& subject_public_key_info); | |
72 #endif | |
73 | |
74 #if !defined(USE_OPENSSL) | 54 #if !defined(USE_OPENSSL) |
75 // Imports the key pair into |slot| and returns in |public_key| and |key|. | 55 // Imports the key pair into |slot| and returns in |public_key| and |key|. |
76 // Shortcut for code that needs to keep a reference directly to NSS types | 56 // Shortcut for code that needs to keep a reference directly to NSS types |
77 // without having to create a ECPrivateKey object and make a copy of them. | 57 // without having to create a ECPrivateKey object and make a copy of them. |
78 // TODO(mattm): move this function to some NSS util file. | 58 // TODO(mattm): move this function to some NSS util file. |
79 static bool ImportFromEncryptedPrivateKeyInfo( | 59 static bool ImportFromEncryptedPrivateKeyInfo( |
80 PK11SlotInfo* slot, | 60 PK11SlotInfo* slot, |
81 const std::string& password, | 61 const std::string& password, |
82 const uint8* encrypted_private_key_info, | 62 const uint8* encrypted_private_key_info, |
83 size_t encrypted_private_key_info_len, | 63 size_t encrypted_private_key_info_len, |
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123 ECPrivateKey(); | 103 ECPrivateKey(); |
124 | 104 |
125 #if !defined(USE_OPENSSL) | 105 #if !defined(USE_OPENSSL) |
126 // Shared helper for Create() and CreateSensitive(). | 106 // Shared helper for Create() and CreateSensitive(). |
127 // TODO(cmasone): consider replacing |permanent| and |sensitive| with a | 107 // TODO(cmasone): consider replacing |permanent| and |sensitive| with a |
128 // flags arg created by ORing together some enumerated values. | 108 // flags arg created by ORing together some enumerated values. |
129 static ECPrivateKey* CreateWithParams(PK11SlotInfo* slot, | 109 static ECPrivateKey* CreateWithParams(PK11SlotInfo* slot, |
130 bool permanent, | 110 bool permanent, |
131 bool sensitive); | 111 bool sensitive); |
132 | 112 |
133 // Shared helper for CreateFromEncryptedPrivateKeyInfo() and | 113 // Helper for CreateFromEncryptedPrivateKeyInfo(). |
134 // CreateSensitiveFromEncryptedPrivateKeyInfo(). | |
135 static ECPrivateKey* CreateFromEncryptedPrivateKeyInfoWithParams( | 114 static ECPrivateKey* CreateFromEncryptedPrivateKeyInfoWithParams( |
136 PK11SlotInfo* slot, | 115 PK11SlotInfo* slot, |
137 const std::string& password, | 116 const std::string& password, |
138 const std::vector<uint8>& encrypted_private_key_info, | 117 const std::vector<uint8>& encrypted_private_key_info, |
139 const std::vector<uint8>& subject_public_key_info, | 118 const std::vector<uint8>& subject_public_key_info, |
140 bool permanent, | 119 bool permanent, |
141 bool sensitive); | 120 bool sensitive); |
142 #endif | 121 #endif |
143 | 122 |
144 #if defined(USE_OPENSSL) | 123 #if defined(USE_OPENSSL) |
145 EVP_PKEY* key_; | 124 EVP_PKEY* key_; |
146 #else | 125 #else |
147 SECKEYPrivateKey* key_; | 126 SECKEYPrivateKey* key_; |
148 SECKEYPublicKey* public_key_; | 127 SECKEYPublicKey* public_key_; |
149 #endif | 128 #endif |
150 | 129 |
151 DISALLOW_COPY_AND_ASSIGN(ECPrivateKey); | 130 DISALLOW_COPY_AND_ASSIGN(ECPrivateKey); |
152 }; | 131 }; |
153 | 132 |
154 | 133 |
155 } // namespace crypto | 134 } // namespace crypto |
156 | 135 |
157 #endif // CRYPTO_EC_PRIVATE_KEY_H_ | 136 #endif // CRYPTO_EC_PRIVATE_KEY_H_ |
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