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 <cryptohi.h> | |
8 #include <keyhi.h> | |
9 #include <stdlib.h> | |
10 | |
11 #include "base/logging.h" | |
12 #include "base/memory/scoped_ptr.h" | |
13 #include "base/nss_util.h" | |
14 | |
15 namespace base { | |
16 | |
17 SignatureCreator::~SignatureCreator() { | |
18 if (sign_context_) { | |
19 SGN_DestroyContext(sign_context_, PR_TRUE); | |
20 sign_context_ = NULL; | |
21 } | |
22 } | |
23 | |
24 // static | |
25 SignatureCreator* SignatureCreator::Create(RSAPrivateKey* key) { | |
26 scoped_ptr<SignatureCreator> result(new SignatureCreator); | |
27 result->key_ = key; | |
28 | |
29 result->sign_context_ = SGN_NewContext(SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION, | |
30 key->key()); | |
31 if (!result->sign_context_) { | |
32 NOTREACHED(); | |
33 return NULL; | |
34 } | |
35 | |
36 SECStatus rv = SGN_Begin(result->sign_context_); | |
37 if (rv != SECSuccess) { | |
38 NOTREACHED(); | |
39 return NULL; | |
40 } | |
41 | |
42 return result.release(); | |
43 } | |
44 | |
45 bool SignatureCreator::Update(const uint8* data_part, int data_part_len) { | |
46 // TODO(wtc): Remove this const_cast when we require NSS 3.12.5. | |
47 // See NSS bug https://bugzilla.mozilla.org/show_bug.cgi?id=518255 | |
48 SECStatus rv = SGN_Update(sign_context_, | |
49 const_cast<unsigned char*>(data_part), | |
50 data_part_len); | |
51 if (rv != SECSuccess) { | |
52 NOTREACHED(); | |
53 return false; | |
54 } | |
55 | |
56 return true; | |
57 } | |
58 | |
59 bool SignatureCreator::Final(std::vector<uint8>* signature) { | |
60 SECItem signature_item; | |
61 SECStatus rv = SGN_End(sign_context_, &signature_item); | |
62 if (rv != SECSuccess) { | |
63 NOTREACHED(); | |
64 return false; | |
65 } | |
66 signature->assign(signature_item.data, | |
67 signature_item.data + signature_item.len); | |
68 SECITEM_FreeItem(&signature_item, PR_FALSE); | |
69 return true; | |
70 } | |
71 | |
72 SignatureCreator::SignatureCreator() : sign_context_(NULL) { | |
73 EnsureNSSInit(); | |
74 } | |
75 | |
76 } // namespace base | |
OLD | NEW |