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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 EnsureOpenSSLInit(); |
18 OpenSSLErrStackTracer err_tracer("SignatureCreator::Create"); | |
19 scoped_ptr<SignatureCreator> self(new SignatureCreator); | |
bulach
2010/11/17 14:35:09
s/self/new_signature/
joth
2010/11/17 14:49:31
Done. (=>result)
| |
20 self->key_ = key; | |
21 if (!EVP_SignInit_ex(self->sign_context_, EVP_sha1(), NULL)) | |
22 return NULL; | |
23 return self.release(); | |
14 } | 24 } |
15 | 25 |
16 SignatureCreator::SignatureCreator() { | 26 SignatureCreator::SignatureCreator() |
27 : sign_context_(EVP_MD_CTX_create()) { | |
17 } | 28 } |
18 | 29 |
19 SignatureCreator::~SignatureCreator() { | 30 SignatureCreator::~SignatureCreator() { |
31 EVP_MD_CTX_destroy(sign_context_); | |
bulach
2010/11/17 14:35:09
scoped?
joth
2010/11/17 14:49:31
Prefer not to, for same reason as RSAPrivateKey.
| |
20 } | 32 } |
21 | 33 |
22 bool SignatureCreator::Update(const uint8* data_part, int data_part_len) { | 34 bool SignatureCreator::Update(const uint8* data_part, int data_part_len) { |
23 NOTIMPLEMENTED(); | 35 OpenSSLErrStackTracer err_tracer("SignatureCreator::Update"); |
24 return false; | 36 return EVP_SignUpdate(sign_context_, data_part, data_part_len) == 1; |
25 } | 37 } |
26 | 38 |
27 bool SignatureCreator::Final(std::vector<uint8>* signature) { | 39 bool SignatureCreator::Final(std::vector<uint8>* signature) { |
28 NOTIMPLEMENTED(); | 40 OpenSSLErrStackTracer err_tracer("SignatureCreator::Final"); |
29 return false; | 41 EVP_PKEY* key = key_->key(); |
42 signature->resize(EVP_PKEY_size(key)); | |
43 | |
44 unsigned int len = 0; | |
45 int rv = EVP_SignFinal(sign_context_, signature->data(), &len, key); | |
46 if (!rv) { | |
47 signature->clear(); | |
48 return false; | |
49 } | |
50 signature->resize(len); | |
51 return true; | |
30 } | 52 } |
31 | 53 |
32 } // namespace base | 54 } // namespace base |
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