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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 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 | 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 "net/http/des.h" | 5 #include "net/http/des.h" |
6 | 6 |
7 #include "base/logging.h" | 7 #include "base/logging.h" |
8 | 8 |
9 #if defined(USE_OPENSSL) | 9 #if defined(USE_OPENSSL) |
10 #include <openssl/des.h> | 10 #include <openssl/des.h> |
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57 * use your version of this file under the terms of the MPL, indicate your | 57 * use your version of this file under the terms of the MPL, indicate your |
58 * decision by deleting the provisions above and replace them with the notice | 58 * decision by deleting the provisions above and replace them with the notice |
59 * and other provisions required by the GPL or the LGPL. If you do not delete | 59 * and other provisions required by the GPL or the LGPL. If you do not delete |
60 * the provisions above, a recipient may use your version of this file under | 60 * the provisions above, a recipient may use your version of this file under |
61 * the terms of any one of the MPL, the GPL or the LGPL. | 61 * the terms of any one of the MPL, the GPL or the LGPL. |
62 * | 62 * |
63 * ***** END LICENSE BLOCK ***** */ | 63 * ***** END LICENSE BLOCK ***** */ |
64 | 64 |
65 // Set odd parity bit (in least significant bit position). | 65 // Set odd parity bit (in least significant bit position). |
66 static uint8 DESSetKeyParity(uint8 x) { | 66 static uint8 DESSetKeyParity(uint8 x) { |
67 if ((((x >> 7) ^ (x >> 6) ^ (x >> 5) ^ | 67 if ((((x >> 7) ^ (x >> 6) ^ (x >> 5) ^ (x >> 4) ^ (x >> 3) ^ (x >> 2) ^ |
68 (x >> 4) ^ (x >> 3) ^ (x >> 2) ^ | 68 (x >> 1)) & |
69 (x >> 1)) & 0x01) == 0) { | 69 0x01) == 0) { |
70 x |= 0x01; | 70 x |= 0x01; |
71 } else { | 71 } else { |
72 x &= 0xfe; | 72 x &= 0xfe; |
73 } | 73 } |
74 return x; | 74 return x; |
75 } | 75 } |
76 | 76 |
77 namespace net { | 77 namespace net { |
78 | 78 |
79 void DESMakeKey(const uint8* raw, uint8* key) { | 79 void DESMakeKey(const uint8* raw, uint8* key) { |
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90 #if defined(USE_OPENSSL) | 90 #if defined(USE_OPENSSL) |
91 | 91 |
92 void DESEncrypt(const uint8* key, const uint8* src, uint8* hash) { | 92 void DESEncrypt(const uint8* key, const uint8* src, uint8* hash) { |
93 crypto::EnsureOpenSSLInit(); | 93 crypto::EnsureOpenSSLInit(); |
94 | 94 |
95 DES_key_schedule ks; | 95 DES_key_schedule ks; |
96 DES_set_key_unchecked( | 96 DES_set_key_unchecked( |
97 reinterpret_cast<const_DES_cblock*>(const_cast<uint8*>(key)), &ks); | 97 reinterpret_cast<const_DES_cblock*>(const_cast<uint8*>(key)), &ks); |
98 | 98 |
99 DES_ecb_encrypt(reinterpret_cast<const_DES_cblock*>(const_cast<uint8*>(src)), | 99 DES_ecb_encrypt(reinterpret_cast<const_DES_cblock*>(const_cast<uint8*>(src)), |
100 reinterpret_cast<DES_cblock*>(hash), &ks, DES_ENCRYPT); | 100 reinterpret_cast<DES_cblock*>(hash), |
| 101 &ks, |
| 102 DES_ENCRYPT); |
101 } | 103 } |
102 | 104 |
103 #elif defined(USE_NSS) | 105 #elif defined(USE_NSS) |
104 | 106 |
105 void DESEncrypt(const uint8* key, const uint8* src, uint8* hash) { | 107 void DESEncrypt(const uint8* key, const uint8* src, uint8* hash) { |
106 CK_MECHANISM_TYPE cipher_mech = CKM_DES_ECB; | 108 CK_MECHANISM_TYPE cipher_mech = CKM_DES_ECB; |
107 PK11SlotInfo* slot = NULL; | 109 PK11SlotInfo* slot = NULL; |
108 PK11SymKey* symkey = NULL; | 110 PK11SymKey* symkey = NULL; |
109 PK11Context* ctxt = NULL; | 111 PK11Context* ctxt = NULL; |
110 SECItem key_item; | 112 SECItem key_item; |
111 SECItem* param = NULL; | 113 SECItem* param = NULL; |
112 SECStatus rv; | 114 SECStatus rv; |
113 unsigned int n; | 115 unsigned int n; |
114 | 116 |
115 crypto::EnsureNSSInit(); | 117 crypto::EnsureNSSInit(); |
116 | 118 |
117 slot = PK11_GetInternalSlot(); | 119 slot = PK11_GetInternalSlot(); |
118 if (!slot) | 120 if (!slot) |
119 goto done; | 121 goto done; |
120 | 122 |
121 key_item.data = const_cast<uint8*>(key); | 123 key_item.data = const_cast<uint8*>(key); |
122 key_item.len = 8; | 124 key_item.len = 8; |
123 symkey = PK11_ImportSymKey(slot, cipher_mech, | 125 symkey = PK11_ImportSymKey( |
124 PK11_OriginUnwrap, CKA_ENCRYPT, | 126 slot, cipher_mech, PK11_OriginUnwrap, CKA_ENCRYPT, &key_item, NULL); |
125 &key_item, NULL); | |
126 if (!symkey) | 127 if (!symkey) |
127 goto done; | 128 goto done; |
128 | 129 |
129 // No initialization vector required. | 130 // No initialization vector required. |
130 param = PK11_ParamFromIV(cipher_mech, NULL); | 131 param = PK11_ParamFromIV(cipher_mech, NULL); |
131 if (!param) | 132 if (!param) |
132 goto done; | 133 goto done; |
133 | 134 |
134 ctxt = PK11_CreateContextBySymKey(cipher_mech, CKA_ENCRYPT, | 135 ctxt = PK11_CreateContextBySymKey(cipher_mech, CKA_ENCRYPT, symkey, param); |
135 symkey, param); | |
136 if (!ctxt) | 136 if (!ctxt) |
137 goto done; | 137 goto done; |
138 | 138 |
139 rv = PK11_CipherOp(ctxt, hash, reinterpret_cast<int*>(&n), 8, | 139 rv = PK11_CipherOp( |
140 const_cast<uint8*>(src), 8); | 140 ctxt, hash, reinterpret_cast<int*>(&n), 8, const_cast<uint8*>(src), 8); |
141 if (rv != SECSuccess) | 141 if (rv != SECSuccess) |
142 goto done; | 142 goto done; |
143 | 143 |
144 // TODO(wtc): Should this be PK11_Finalize? | 144 // TODO(wtc): Should this be PK11_Finalize? |
145 rv = PK11_DigestFinal(ctxt, hash+8, &n, 0); | 145 rv = PK11_DigestFinal(ctxt, hash + 8, &n, 0); |
146 if (rv != SECSuccess) | 146 if (rv != SECSuccess) |
147 goto done; | 147 goto done; |
148 | 148 |
149 done: | 149 done: |
150 if (ctxt) | 150 if (ctxt) |
151 PK11_DestroyContext(ctxt, PR_TRUE); | 151 PK11_DestroyContext(ctxt, PR_TRUE); |
152 if (symkey) | 152 if (symkey) |
153 PK11_FreeSymKey(symkey); | 153 PK11_FreeSymKey(symkey); |
154 if (param) | 154 if (param) |
155 SECITEM_FreeItem(param, PR_TRUE); | 155 SECITEM_FreeItem(param, PR_TRUE); |
156 if (slot) | 156 if (slot) |
157 PK11_FreeSlot(slot); | 157 PK11_FreeSlot(slot); |
158 } | 158 } |
159 | 159 |
160 #elif defined(OS_MACOSX) | 160 #elif defined(OS_MACOSX) |
161 | 161 |
162 void DESEncrypt(const uint8* key, const uint8* src, uint8* hash) { | 162 void DESEncrypt(const uint8* key, const uint8* src, uint8* hash) { |
163 CCCryptorStatus status; | 163 CCCryptorStatus status; |
164 size_t data_out_moved = 0; | 164 size_t data_out_moved = 0; |
165 status = CCCrypt(kCCEncrypt, kCCAlgorithmDES, kCCOptionECBMode, | 165 status = CCCrypt(kCCEncrypt, |
166 key, 8, NULL, src, 8, hash, 8, &data_out_moved); | 166 kCCAlgorithmDES, |
| 167 kCCOptionECBMode, |
| 168 key, |
| 169 8, |
| 170 NULL, |
| 171 src, |
| 172 8, |
| 173 hash, |
| 174 8, |
| 175 &data_out_moved); |
167 DCHECK(status == kCCSuccess); | 176 DCHECK(status == kCCSuccess); |
168 DCHECK(data_out_moved == 8); | 177 DCHECK(data_out_moved == 8); |
169 } | 178 } |
170 | 179 |
171 #elif defined(OS_WIN) | 180 #elif defined(OS_WIN) |
172 | 181 |
173 void DESEncrypt(const uint8* key, const uint8* src, uint8* hash) { | 182 void DESEncrypt(const uint8* key, const uint8* src, uint8* hash) { |
174 crypto::ScopedHCRYPTPROV provider; | 183 crypto::ScopedHCRYPTPROV provider; |
175 if (!CryptAcquireContext(provider.receive(), NULL, NULL, PROV_RSA_FULL, | 184 if (!CryptAcquireContext( |
176 CRYPT_VERIFYCONTEXT)) | 185 provider.receive(), NULL, NULL, PROV_RSA_FULL, CRYPT_VERIFYCONTEXT)) |
177 return; | 186 return; |
178 | 187 |
179 { | 188 { |
180 // Import the DES key. | 189 // Import the DES key. |
181 struct KeyBlob { | 190 struct KeyBlob { |
182 BLOBHEADER header; | 191 BLOBHEADER header; |
183 DWORD key_size; | 192 DWORD key_size; |
184 BYTE key_data[8]; | 193 BYTE key_data[8]; |
185 }; | 194 }; |
186 KeyBlob key_blob; | 195 KeyBlob key_blob; |
187 key_blob.header.bType = PLAINTEXTKEYBLOB; | 196 key_blob.header.bType = PLAINTEXTKEYBLOB; |
188 key_blob.header.bVersion = CUR_BLOB_VERSION; | 197 key_blob.header.bVersion = CUR_BLOB_VERSION; |
189 key_blob.header.reserved = 0; | 198 key_blob.header.reserved = 0; |
190 key_blob.header.aiKeyAlg = CALG_DES; | 199 key_blob.header.aiKeyAlg = CALG_DES; |
191 key_blob.key_size = 8; // 64 bits | 200 key_blob.key_size = 8; // 64 bits |
192 memcpy(key_blob.key_data, key, 8); | 201 memcpy(key_blob.key_data, key, 8); |
193 | 202 |
194 crypto::ScopedHCRYPTKEY key; | 203 crypto::ScopedHCRYPTKEY key; |
195 BOOL import_ok = CryptImportKey(provider, | 204 BOOL import_ok = CryptImportKey(provider, |
196 reinterpret_cast<BYTE*>(&key_blob), | 205 reinterpret_cast<BYTE*>(&key_blob), |
197 sizeof key_blob, 0, 0, key.receive()); | 206 sizeof key_blob, |
| 207 0, |
| 208 0, |
| 209 key.receive()); |
198 // Destroy the copy of the key. | 210 // Destroy the copy of the key. |
199 SecureZeroMemory(key_blob.key_data, sizeof key_blob.key_data); | 211 SecureZeroMemory(key_blob.key_data, sizeof key_blob.key_data); |
200 if (!import_ok) | 212 if (!import_ok) |
201 return; | 213 return; |
202 | 214 |
203 // No initialization vector required. | 215 // No initialization vector required. |
204 DWORD cipher_mode = CRYPT_MODE_ECB; | 216 DWORD cipher_mode = CRYPT_MODE_ECB; |
205 if (!CryptSetKeyParam(key, KP_MODE, reinterpret_cast<BYTE*>(&cipher_mode), | 217 if (!CryptSetKeyParam( |
206 0)) | 218 key, KP_MODE, reinterpret_cast<BYTE*>(&cipher_mode), 0)) |
207 return; | 219 return; |
208 | 220 |
209 // CryptoAPI requires us to copy the plaintext to the output buffer first. | 221 // CryptoAPI requires us to copy the plaintext to the output buffer first. |
210 CopyMemory(hash, src, 8); | 222 CopyMemory(hash, src, 8); |
211 // Pass a 'Final' of FALSE, otherwise CryptEncrypt appends one additional | 223 // Pass a 'Final' of FALSE, otherwise CryptEncrypt appends one additional |
212 // block of padding to the data. | 224 // block of padding to the data. |
213 DWORD hash_len = 8; | 225 DWORD hash_len = 8; |
214 CryptEncrypt(key, 0, FALSE, 0, hash, &hash_len, 8); | 226 CryptEncrypt(key, 0, FALSE, 0, hash, &hash_len, 8); |
215 } | 227 } |
216 } | 228 } |
217 | 229 |
218 #endif | 230 #endif |
219 | 231 |
220 } // namespace net | 232 } // namespace net |
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