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1 // Copyright (c) 2010 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2010 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 #include "base/hmac.h" | 5 #include "base/hmac.h" |
6 | 6 |
7 #include <nss.h> | 7 #include <nss.h> |
8 #include <pk11pub.h> | 8 #include <pk11pub.h> |
9 | 9 |
10 #include "base/crypto/scoped_nss_types.h" | 10 #include "base/crypto/scoped_nss_types.h" |
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29 break; | 29 break; |
30 case SHA256: | 30 case SHA256: |
31 plat_->mechanism_ = CKM_SHA256_HMAC; | 31 plat_->mechanism_ = CKM_SHA256_HMAC; |
32 break; | 32 break; |
33 default: | 33 default: |
34 NOTREACHED() << "Unsupported hash algorithm"; | 34 NOTREACHED() << "Unsupported hash algorithm"; |
35 break; | 35 break; |
36 } | 36 } |
37 } | 37 } |
38 | 38 |
| 39 HMAC::~HMAC() { |
| 40 } |
| 41 |
39 bool HMAC::Init(const unsigned char *key, int key_length) { | 42 bool HMAC::Init(const unsigned char *key, int key_length) { |
40 base::EnsureNSSInit(); | 43 base::EnsureNSSInit(); |
41 | 44 |
42 if (plat_->slot_.get()) { | 45 if (plat_->slot_.get()) { |
43 // Init must not be called more than twice on the same HMAC object. | 46 // Init must not be called more than twice on the same HMAC object. |
44 NOTREACHED(); | 47 NOTREACHED(); |
45 return false; | 48 return false; |
46 } | 49 } |
47 | 50 |
48 plat_->slot_.reset(PK11_GetBestSlot(plat_->mechanism_, NULL)); | 51 plat_->slot_.reset(PK11_GetBestSlot(plat_->mechanism_, NULL)); |
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63 &key_item, | 66 &key_item, |
64 NULL)); | 67 NULL)); |
65 if (!plat_->sym_key_.get()) { | 68 if (!plat_->sym_key_.get()) { |
66 NOTREACHED(); | 69 NOTREACHED(); |
67 return false; | 70 return false; |
68 } | 71 } |
69 | 72 |
70 return true; | 73 return true; |
71 } | 74 } |
72 | 75 |
73 HMAC::~HMAC() { | |
74 } | |
75 | |
76 bool HMAC::Sign(const std::string& data, | 76 bool HMAC::Sign(const std::string& data, |
77 unsigned char* digest, | 77 unsigned char* digest, |
78 int digest_length) { | 78 int digest_length) { |
79 if (!plat_->sym_key_.get()) { | 79 if (!plat_->sym_key_.get()) { |
80 // Init has not been called before Sign. | 80 // Init has not been called before Sign. |
81 NOTREACHED(); | 81 NOTREACHED(); |
82 return false; | 82 return false; |
83 } | 83 } |
84 | 84 |
85 SECItem param = { siBuffer, NULL, 0 }; | 85 SECItem param = { siBuffer, NULL, 0 }; |
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108 if (PK11_DigestFinal(context.get(), | 108 if (PK11_DigestFinal(context.get(), |
109 digest, &len, digest_length) != SECSuccess) { | 109 digest, &len, digest_length) != SECSuccess) { |
110 NOTREACHED(); | 110 NOTREACHED(); |
111 return false; | 111 return false; |
112 } | 112 } |
113 | 113 |
114 return true; | 114 return true; |
115 } | 115 } |
116 | 116 |
117 } // namespace base | 117 } // namespace base |
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