OLD | NEW |
| (Empty) |
1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "base/crypto/signature_creator.h" | |
6 | |
7 #include <stdlib.h> | |
8 | |
9 #include "base/crypto/cssm_init.h" | |
10 #include "base/logging.h" | |
11 #include "base/memory/scoped_ptr.h" | |
12 | |
13 namespace base { | |
14 | |
15 // static | |
16 SignatureCreator* SignatureCreator::Create(RSAPrivateKey* key) { | |
17 scoped_ptr<SignatureCreator> result(new SignatureCreator); | |
18 result->key_ = key; | |
19 | |
20 CSSM_RETURN crtn; | |
21 crtn = CSSM_CSP_CreateSignatureContext(GetSharedCSPHandle(), | |
22 CSSM_ALGID_SHA1WithRSA, | |
23 NULL, | |
24 key->key(), | |
25 &result->sig_handle_); | |
26 if (crtn) { | |
27 NOTREACHED(); | |
28 return NULL; | |
29 } | |
30 | |
31 crtn = CSSM_SignDataInit(result->sig_handle_); | |
32 if (crtn) { | |
33 NOTREACHED(); | |
34 return NULL; | |
35 } | |
36 | |
37 return result.release(); | |
38 } | |
39 | |
40 SignatureCreator::SignatureCreator() : sig_handle_(0) { | |
41 EnsureCSSMInit(); | |
42 } | |
43 | |
44 SignatureCreator::~SignatureCreator() { | |
45 CSSM_RETURN crtn; | |
46 if (sig_handle_) { | |
47 crtn = CSSM_DeleteContext(sig_handle_); | |
48 DCHECK(crtn == CSSM_OK); | |
49 } | |
50 } | |
51 | |
52 bool SignatureCreator::Update(const uint8* data_part, int data_part_len) { | |
53 CSSM_DATA data; | |
54 data.Data = const_cast<uint8*>(data_part); | |
55 data.Length = data_part_len; | |
56 CSSM_RETURN crtn = CSSM_SignDataUpdate(sig_handle_, &data, 1); | |
57 DCHECK(crtn == CSSM_OK); | |
58 return true; | |
59 } | |
60 | |
61 bool SignatureCreator::Final(std::vector<uint8>* signature) { | |
62 ScopedCSSMData sig; | |
63 CSSM_RETURN crtn = CSSM_SignDataFinal(sig_handle_, sig); | |
64 | |
65 if (crtn) { | |
66 NOTREACHED(); | |
67 return false; | |
68 } | |
69 | |
70 signature->assign(sig->Data, sig->Data + sig->Length); | |
71 return true; | |
72 } | |
73 | |
74 } // namespace base | |
OLD | NEW |