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1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2009 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/crypto/signature_creator.h" | 5 #include "base/crypto/signature_creator.h" |
6 | 6 |
| 7 #include <openssl/evp.h> |
| 8 |
7 #include "base/logging.h" | 9 #include "base/logging.h" |
| 10 #include "base/openssl_util.h" |
| 11 #include "base/scoped_ptr.h" |
8 | 12 |
9 namespace base { | 13 namespace base { |
10 | 14 |
11 // static | 15 // static |
12 SignatureCreator* SignatureCreator::Create(RSAPrivateKey* key) { | 16 SignatureCreator* SignatureCreator::Create(RSAPrivateKey* key) { |
13 return NULL; | 17 OpenSSLErrStackTracer err_tracer(FROM_HERE); |
| 18 scoped_ptr<SignatureCreator> result(new SignatureCreator); |
| 19 result->key_ = key; |
| 20 if (!EVP_SignInit_ex(result->sign_context_, EVP_sha1(), NULL)) |
| 21 return NULL; |
| 22 return result.release(); |
14 } | 23 } |
15 | 24 |
16 SignatureCreator::SignatureCreator() { | 25 SignatureCreator::SignatureCreator() |
| 26 : sign_context_(EVP_MD_CTX_create()) { |
17 } | 27 } |
18 | 28 |
19 SignatureCreator::~SignatureCreator() { | 29 SignatureCreator::~SignatureCreator() { |
| 30 EVP_MD_CTX_destroy(sign_context_); |
20 } | 31 } |
21 | 32 |
22 bool SignatureCreator::Update(const uint8* data_part, int data_part_len) { | 33 bool SignatureCreator::Update(const uint8* data_part, int data_part_len) { |
23 NOTIMPLEMENTED(); | 34 OpenSSLErrStackTracer err_tracer(FROM_HERE); |
24 return false; | 35 return EVP_SignUpdate(sign_context_, data_part, data_part_len) == 1; |
25 } | 36 } |
26 | 37 |
27 bool SignatureCreator::Final(std::vector<uint8>* signature) { | 38 bool SignatureCreator::Final(std::vector<uint8>* signature) { |
28 NOTIMPLEMENTED(); | 39 OpenSSLErrStackTracer err_tracer(FROM_HERE); |
29 return false; | 40 EVP_PKEY* key = key_->key(); |
| 41 signature->resize(EVP_PKEY_size(key)); |
| 42 |
| 43 unsigned int len = 0; |
| 44 int rv = EVP_SignFinal(sign_context_, signature->data(), &len, key); |
| 45 if (!rv) { |
| 46 signature->clear(); |
| 47 return false; |
| 48 } |
| 49 signature->resize(len); |
| 50 return true; |
30 } | 51 } |
31 | 52 |
32 } // namespace base | 53 } // namespace base |
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