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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" |
| (...skipping 18 matching lines...) Expand all Loading... |
| 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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