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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 <stdlib.h> | 7 #include <stdlib.h> |
8 | 8 |
9 #include "base/crypto/cssm_init.h" | 9 #include "base/crypto/cssm_init.h" |
10 #include "base/logging.h" | 10 #include "base/logging.h" |
11 #include "base/scoped_ptr.h" | 11 #include "base/scoped_ptr.h" |
12 | 12 |
13 namespace base { | 13 namespace base { |
14 | 14 |
15 // static | 15 // static |
16 SignatureCreator* SignatureCreator::Create(RSAPrivateKey* key) { | 16 SignatureCreator* SignatureCreator::Create(RSAPrivateKey* key) { |
17 scoped_ptr<SignatureCreator> result(new SignatureCreator); | 17 scoped_ptr<SignatureCreator> result(new SignatureCreator); |
18 result->key_ = key; | 18 result->key_ = key; |
19 | 19 |
20 CSSM_RETURN crtn; | 20 CSSM_RETURN crtn; |
21 crtn = CSSM_CSP_CreateSignatureContext(result->csp_handle_, | 21 crtn = CSSM_CSP_CreateSignatureContext(GetSharedCSPHandle(), |
22 CSSM_ALGID_SHA1WithRSA, | 22 CSSM_ALGID_SHA1WithRSA, |
23 NULL, | 23 NULL, |
24 key->key(), | 24 key->key(), |
25 &result->sig_handle_); | 25 &result->sig_handle_); |
26 if (crtn) { | 26 if (crtn) { |
27 NOTREACHED(); | 27 NOTREACHED(); |
28 return NULL; | 28 return NULL; |
29 } | 29 } |
30 | 30 |
31 crtn = CSSM_SignDataInit(result->sig_handle_); | 31 crtn = CSSM_SignDataInit(result->sig_handle_); |
32 if (crtn) { | 32 if (crtn) { |
33 NOTREACHED(); | 33 NOTREACHED(); |
34 return false; | 34 return false; |
35 } | 35 } |
36 | 36 |
37 return result.release(); | 37 return result.release(); |
38 } | 38 } |
39 | 39 |
40 SignatureCreator::SignatureCreator() : csp_handle_(0), sig_handle_(0) { | 40 SignatureCreator::SignatureCreator() : sig_handle_(0) { |
41 EnsureCSSMInit(); | 41 EnsureCSSMInit(); |
42 | |
43 static CSSM_VERSION version = {2, 0}; | |
44 CSSM_RETURN crtn; | |
45 crtn = CSSM_ModuleAttach(&gGuidAppleCSP, &version, &kCssmMemoryFunctions, 0, | |
46 CSSM_SERVICE_CSP, 0, CSSM_KEY_HIERARCHY_NONE, | |
47 NULL, 0, NULL, &csp_handle_); | |
48 DCHECK(crtn == CSSM_OK); | |
49 } | 42 } |
50 | 43 |
51 SignatureCreator::~SignatureCreator() { | 44 SignatureCreator::~SignatureCreator() { |
52 CSSM_RETURN crtn; | 45 CSSM_RETURN crtn; |
53 if (sig_handle_) { | 46 if (sig_handle_) { |
54 crtn = CSSM_DeleteContext(sig_handle_); | 47 crtn = CSSM_DeleteContext(sig_handle_); |
55 DCHECK(crtn == CSSM_OK); | 48 DCHECK(crtn == CSSM_OK); |
56 } | 49 } |
57 | |
58 if (csp_handle_) { | |
59 CSSM_RETURN crtn = CSSM_ModuleDetach(csp_handle_); | |
60 DCHECK(crtn == CSSM_OK); | |
61 } | |
62 } | 50 } |
63 | 51 |
64 bool SignatureCreator::Update(const uint8* data_part, int data_part_len) { | 52 bool SignatureCreator::Update(const uint8* data_part, int data_part_len) { |
65 CSSM_DATA data; | 53 CSSM_DATA data; |
66 data.Data = const_cast<uint8*>(data_part); | 54 data.Data = const_cast<uint8*>(data_part); |
67 data.Length = data_part_len; | 55 data.Length = data_part_len; |
68 CSSM_RETURN crtn = CSSM_SignDataUpdate(sig_handle_, &data, 1); | 56 CSSM_RETURN crtn = CSSM_SignDataUpdate(sig_handle_, &data, 1); |
69 DCHECK(crtn == CSSM_OK); | 57 DCHECK(crtn == CSSM_OK); |
70 return true; | 58 return true; |
71 } | 59 } |
72 | 60 |
73 bool SignatureCreator::Final(std::vector<uint8>* signature) { | 61 bool SignatureCreator::Final(std::vector<uint8>* signature) { |
74 CSSM_DATA sig; | 62 CSSM_DATA sig; |
75 memset(&sig, 0, sizeof(CSSM_DATA)); // Allow CSSM allocate memory; | 63 memset(&sig, 0, sizeof(CSSM_DATA)); // Allow CSSM allocate memory; |
76 CSSM_RETURN crtn = CSSM_SignDataFinal(sig_handle_, &sig); | 64 CSSM_RETURN crtn = CSSM_SignDataFinal(sig_handle_, &sig); |
77 | 65 |
78 if (crtn) { | 66 if (crtn) { |
79 NOTREACHED(); | 67 NOTREACHED(); |
80 return false; | 68 return false; |
81 } | 69 } |
82 | 70 |
83 signature->assign(sig.Data, sig.Data + sig.Length); | 71 signature->assign(sig.Data, sig.Data + sig.Length); |
84 kCssmMemoryFunctions.free_func(sig.Data, NULL); // Release data alloc'd | 72 kCssmMemoryFunctions.free_func(sig.Data, NULL); // Release data alloc'd |
85 // by CSSM | 73 // by CSSM |
86 | 74 |
87 return true; | 75 return true; |
88 } | 76 } |
89 | 77 |
90 } // namespace base | 78 } // namespace base |
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