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Issue 6805019: Move crypto files out of base, to a top level directory. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: Fixes comments by eroman Created 9 years, 8 months ago
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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
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