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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 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 | 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 "crypto/signature_creator.h" | 5 #include "crypto/signature_creator.h" |
6 | 6 |
7 #include <openssl/evp.h> | 7 #include <openssl/evp.h> |
8 #include <openssl/rsa.h> | 8 #include <openssl/rsa.h> |
| 9 #include <stddef.h> |
| 10 #include <stdint.h> |
9 | 11 |
10 #include "base/logging.h" | 12 #include "base/logging.h" |
11 #include "base/memory/scoped_ptr.h" | 13 #include "base/memory/scoped_ptr.h" |
12 #include "crypto/openssl_util.h" | 14 #include "crypto/openssl_util.h" |
13 #include "crypto/rsa_private_key.h" | 15 #include "crypto/rsa_private_key.h" |
14 #include "crypto/scoped_openssl_types.h" | 16 #include "crypto/scoped_openssl_types.h" |
15 | 17 |
16 namespace crypto { | 18 namespace crypto { |
17 | 19 |
18 namespace { | 20 namespace { |
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52 if (!EVP_DigestSignInit(result->sign_context_, NULL, digest, NULL, | 54 if (!EVP_DigestSignInit(result->sign_context_, NULL, digest, NULL, |
53 key->key())) { | 55 key->key())) { |
54 return NULL; | 56 return NULL; |
55 } | 57 } |
56 return result.release(); | 58 return result.release(); |
57 } | 59 } |
58 | 60 |
59 // static | 61 // static |
60 bool SignatureCreator::Sign(RSAPrivateKey* key, | 62 bool SignatureCreator::Sign(RSAPrivateKey* key, |
61 HashAlgorithm hash_alg, | 63 HashAlgorithm hash_alg, |
62 const uint8* data, | 64 const uint8_t* data, |
63 int data_len, | 65 int data_len, |
64 std::vector<uint8>* signature) { | 66 std::vector<uint8_t>* signature) { |
65 ScopedRSA rsa_key(EVP_PKEY_get1_RSA(key->key())); | 67 ScopedRSA rsa_key(EVP_PKEY_get1_RSA(key->key())); |
66 if (!rsa_key) | 68 if (!rsa_key) |
67 return false; | 69 return false; |
68 signature->resize(RSA_size(rsa_key.get())); | 70 signature->resize(RSA_size(rsa_key.get())); |
69 | 71 |
70 unsigned int len = 0; | 72 unsigned int len = 0; |
71 if (!RSA_sign(ToOpenSSLDigestType(hash_alg), data, data_len, | 73 if (!RSA_sign(ToOpenSSLDigestType(hash_alg), data, data_len, |
72 signature->data(), &len, rsa_key.get())) { | 74 signature->data(), &len, rsa_key.get())) { |
73 signature->clear(); | 75 signature->clear(); |
74 return false; | 76 return false; |
75 } | 77 } |
76 signature->resize(len); | 78 signature->resize(len); |
77 return true; | 79 return true; |
78 } | 80 } |
79 | 81 |
80 SignatureCreator::SignatureCreator() | 82 SignatureCreator::SignatureCreator() |
81 : sign_context_(EVP_MD_CTX_create()) { | 83 : sign_context_(EVP_MD_CTX_create()) { |
82 } | 84 } |
83 | 85 |
84 SignatureCreator::~SignatureCreator() { | 86 SignatureCreator::~SignatureCreator() { |
85 EVP_MD_CTX_destroy(sign_context_); | 87 EVP_MD_CTX_destroy(sign_context_); |
86 } | 88 } |
87 | 89 |
88 bool SignatureCreator::Update(const uint8* data_part, int data_part_len) { | 90 bool SignatureCreator::Update(const uint8_t* data_part, int data_part_len) { |
89 OpenSSLErrStackTracer err_tracer(FROM_HERE); | 91 OpenSSLErrStackTracer err_tracer(FROM_HERE); |
90 return !!EVP_DigestSignUpdate(sign_context_, data_part, data_part_len); | 92 return !!EVP_DigestSignUpdate(sign_context_, data_part, data_part_len); |
91 } | 93 } |
92 | 94 |
93 bool SignatureCreator::Final(std::vector<uint8>* signature) { | 95 bool SignatureCreator::Final(std::vector<uint8_t>* signature) { |
94 OpenSSLErrStackTracer err_tracer(FROM_HERE); | 96 OpenSSLErrStackTracer err_tracer(FROM_HERE); |
95 | 97 |
96 // Determine the maximum length of the signature. | 98 // Determine the maximum length of the signature. |
97 size_t len = 0; | 99 size_t len = 0; |
98 if (!EVP_DigestSignFinal(sign_context_, NULL, &len)) { | 100 if (!EVP_DigestSignFinal(sign_context_, NULL, &len)) { |
99 signature->clear(); | 101 signature->clear(); |
100 return false; | 102 return false; |
101 } | 103 } |
102 signature->resize(len); | 104 signature->resize(len); |
103 | 105 |
104 // Sign it. | 106 // Sign it. |
105 if (!EVP_DigestSignFinal(sign_context_, signature->data(), &len)) { | 107 if (!EVP_DigestSignFinal(sign_context_, signature->data(), &len)) { |
106 signature->clear(); | 108 signature->clear(); |
107 return false; | 109 return false; |
108 } | 110 } |
109 signature->resize(len); | 111 signature->resize(len); |
110 return true; | 112 return true; |
111 } | 113 } |
112 | 114 |
113 } // namespace crypto | 115 } // namespace crypto |
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