1 // Copyright (c) 2012 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.
5 #include "crypto/signature_creator.h"
11 #include "base/logging.h"
12 #include "base/memory/scoped_ptr.h"
13 #include "crypto/nss_util.h"
14 #include "crypto/rsa_private_key.h"
18 SignatureCreator::~SignatureCreator() {
20 SGN_DestroyContext(sign_context_, PR_TRUE);
26 SignatureCreator* SignatureCreator::Create(RSAPrivateKey* key) {
27 scoped_ptr<SignatureCreator> result(new SignatureCreator);
30 result->sign_context_ = SGN_NewContext(SEC_OID_PKCS1_SHA1_WITH_RSA_ENCRYPTION,
32 if (!result->sign_context_) {
37 SECStatus rv = SGN_Begin(result->sign_context_);
38 if (rv != SECSuccess) {
43 return result.release();
47 bool SignatureCreator::Sign(RSAPrivateKey* key,
50 std::vector<uint8>* signature) {
52 data_item.type = siBuffer;
53 data_item.data = const_cast<unsigned char*>(data);
54 data_item.len = data_len;
56 SECItem signature_item;
57 SECStatus rv = SGN_Digest(key->key(), SEC_OID_SHA1, &signature_item,
59 if (rv != SECSuccess) {
63 signature->assign(signature_item.data,
64 signature_item.data + signature_item.len);
65 SECITEM_FreeItem(&signature_item, PR_FALSE);
69 bool SignatureCreator::Update(const uint8* data_part, int data_part_len) {
70 SECStatus rv = SGN_Update(sign_context_, data_part, data_part_len);
71 if (rv != SECSuccess) {
79 bool SignatureCreator::Final(std::vector<uint8>* signature) {
80 SECItem signature_item;
81 SECStatus rv = SGN_End(sign_context_, &signature_item);
82 if (rv != SECSuccess) {
85 signature->assign(signature_item.data,
86 signature_item.data + signature_item.len);
87 SECITEM_FreeItem(&signature_item, PR_FALSE);
91 SignatureCreator::SignatureCreator()