1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "net/ntlm/des.h"
#include "base/logging.h"
#include "crypto/openssl_util.h"
#include "third_party/boringssl/src/include/openssl/des.h"
// The iOS version of DESEncrypt is our own code.
// DESSetKeyParity and DESMakeKey are based on
// mozilla/security/manager/ssl/src/nsNTLMAuthModule.cpp, CVS rev. 1.14.
/* clang-format off */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla.
*
* The Initial Developer of the Original Code is IBM Corporation.
* Portions created by IBM Corporation are Copyright (C) 2003
* IBM Corporation. All Rights Reserved.
*
* Contributor(s):
* Darin Fisher <darin@meer.net>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
// Set odd parity bit (in least significant bit position).
static uint8_t DESSetKeyParity(uint8_t x) {
if ((((x >> 7) ^ (x >> 6) ^ (x >> 5) ^
(x >> 4) ^ (x >> 3) ^ (x >> 2) ^
(x >> 1)) & 0x01) == 0) {
x |= 0x01;
} else {
x &= 0xfe;
}
return x;
}
namespace net {
void DESMakeKey(const uint8_t* raw, uint8_t* key) {
key[0] = DESSetKeyParity(raw[0]);
key[1] = DESSetKeyParity((raw[0] << 7) | (raw[1] >> 1));
key[2] = DESSetKeyParity((raw[1] << 6) | (raw[2] >> 2));
key[3] = DESSetKeyParity((raw[2] << 5) | (raw[3] >> 3));
key[4] = DESSetKeyParity((raw[3] << 4) | (raw[4] >> 4));
key[5] = DESSetKeyParity((raw[4] << 3) | (raw[5] >> 5));
key[6] = DESSetKeyParity((raw[5] << 2) | (raw[6] >> 6));
key[7] = DESSetKeyParity((raw[6] << 1));
}
void DESEncrypt(const uint8_t* key, const uint8_t* src, uint8_t* hash) {
crypto::EnsureOpenSSLInit();
DES_key_schedule ks;
DES_set_key(
reinterpret_cast<const DES_cblock*>(key), &ks);
DES_ecb_encrypt(reinterpret_cast<const DES_cblock*>(src),
reinterpret_cast<DES_cblock*>(hash), &ks, DES_ENCRYPT);
}
} // namespace net
|
