Version Description
- 02/23/2013 =
- Now remembers what cloud service you used for historical backups, if you later switch
- Now performs user downloads from the settings page asynchronously, meaning that enormous backups can be fetched this way
- Fixed bug which forced GoogleDrive users to re-authenticate unnecessarily
- Fixed apparent race condition that broke some backups
- Include disk free space warning
- More intelligent scheduling of resumptions, leading to faster completion on hosts with low max_execution_time values
- Polls and updates in-page backup history status (no refresh required)
- Hooks for SFTP add-on
Download this release
Release Info
Developer | DavidAnderson |
Plugin | UpdraftPlus WordPress Backup Plugin |
Version | 1.4.28 |
Comparing to | |
See all releases |
Code changes from version 1.4.27 to 1.4.28
- example-decrypt.php +1 -1
- includes/phpseclib/Crypt/AES.php +611 -0
- includes/phpseclib/Crypt/DES.php +1295 -0
- includes/phpseclib/Crypt/Hash.php +825 -0
- includes/phpseclib/Crypt/RC4.php +531 -0
- includes/phpseclib/Crypt/RSA.php +2640 -0
- includes/phpseclib/Crypt/Random.php +142 -0
- includes/{Rijndael.php → phpseclib/Crypt/Rijndael.php} +1478 -1424
- includes/phpseclib/Crypt/TripleDES.php +1061 -0
- includes/phpseclib/File/ANSI.php +540 -0
- includes/phpseclib/File/ASN1.php +1273 -0
- includes/phpseclib/File/X509.php +3766 -0
- includes/phpseclib/Math/BigInteger.php +3630 -0
- includes/phpseclib/Net/SFTP.php +2015 -0
- includes/phpseclib/Net/SSH1.php +1421 -0
- includes/phpseclib/Net/SSH2.php +2945 -0
- includes/phpseclib/openssl.cnf +6 -0
- methods/s3.php +9 -8
- methods/sftp.php +85 -0
- options.php +2 -0
- readme.txt +6 -5
- updraftplus.php +13 -10
example-decrypt.php
CHANGED
@@ -24,7 +24,7 @@ gunzip output.sql.gz
|
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24 |
|
25 |
function rijndael_decrypt_file($file, $key) {
|
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|
27 |
-
require_once(dirname(__FILE__).'/includes/Rijndael.php');
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|
29 |
$rijndael = new Crypt_Rijndael();
|
30 |
$rijndael->setKey($key);
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|
25 |
function rijndael_decrypt_file($file, $key) {
|
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|
27 |
+
require_once(dirname(__FILE__).'/includes/phpseclib/Crypt/Rijndael.php');
|
28 |
|
29 |
$rijndael = new Crypt_Rijndael();
|
30 |
$rijndael->setKey($key);
|
includes/phpseclib/Crypt/AES.php
ADDED
@@ -0,0 +1,611 @@
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1 |
+
<?php
|
2 |
+
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
|
3 |
+
|
4 |
+
/**
|
5 |
+
* Pure-PHP implementation of AES.
|
6 |
+
*
|
7 |
+
* Uses mcrypt, if available, and an internal implementation, otherwise.
|
8 |
+
*
|
9 |
+
* PHP versions 4 and 5
|
10 |
+
*
|
11 |
+
* If {@link Crypt_AES::setKeyLength() setKeyLength()} isn't called, it'll be calculated from
|
12 |
+
* {@link Crypt_AES::setKey() setKey()}. ie. if the key is 128-bits, the key length will be 128-bits. If it's 136-bits
|
13 |
+
* it'll be null-padded to 160-bits and 160 bits will be the key length until {@link Crypt_Rijndael::setKey() setKey()}
|
14 |
+
* is called, again, at which point, it'll be recalculated.
|
15 |
+
*
|
16 |
+
* Since Crypt_AES extends Crypt_Rijndael, some functions are available to be called that, in the context of AES, don't
|
17 |
+
* make a whole lot of sense. {@link Crypt_AES::setBlockLength() setBlockLength()}, for instance. Calling that function,
|
18 |
+
* however possible, won't do anything (AES has a fixed block length whereas Rijndael has a variable one).
|
19 |
+
*
|
20 |
+
* Here's a short example of how to use this library:
|
21 |
+
* <code>
|
22 |
+
* <?php
|
23 |
+
* include('Crypt/AES.php');
|
24 |
+
*
|
25 |
+
* $aes = new Crypt_AES();
|
26 |
+
*
|
27 |
+
* $aes->setKey('abcdefghijklmnop');
|
28 |
+
*
|
29 |
+
* $size = 10 * 1024;
|
30 |
+
* $plaintext = '';
|
31 |
+
* for ($i = 0; $i < $size; $i++) {
|
32 |
+
* $plaintext.= 'a';
|
33 |
+
* }
|
34 |
+
*
|
35 |
+
* echo $aes->decrypt($aes->encrypt($plaintext));
|
36 |
+
* ?>
|
37 |
+
* </code>
|
38 |
+
*
|
39 |
+
* LICENSE: Permission is hereby granted, free of charge, to any person obtaining a copy
|
40 |
+
* of this software and associated documentation files (the "Software"), to deal
|
41 |
+
* in the Software without restriction, including without limitation the rights
|
42 |
+
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
43 |
+
* copies of the Software, and to permit persons to whom the Software is
|
44 |
+
* furnished to do so, subject to the following conditions:
|
45 |
+
*
|
46 |
+
* The above copyright notice and this permission notice shall be included in
|
47 |
+
* all copies or substantial portions of the Software.
|
48 |
+
*
|
49 |
+
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
50 |
+
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
51 |
+
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
52 |
+
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
53 |
+
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
54 |
+
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
55 |
+
* THE SOFTWARE.
|
56 |
+
*
|
57 |
+
* @category Crypt
|
58 |
+
* @package Crypt_AES
|
59 |
+
* @author Jim Wigginton <terrafrost@php.net>
|
60 |
+
* @copyright MMVIII Jim Wigginton
|
61 |
+
* @license http://www.opensource.org/licenses/mit-license.html MIT License
|
62 |
+
* @version $Id: AES.php,v 1.7 2010/02/09 06:10:25 terrafrost Exp $
|
63 |
+
* @link http://phpseclib.sourceforge.net
|
64 |
+
*/
|
65 |
+
|
66 |
+
/**
|
67 |
+
* Include Crypt_Rijndael
|
68 |
+
*/
|
69 |
+
if (!class_exists('Crypt_Rijndael')) {
|
70 |
+
require_once 'Rijndael.php';
|
71 |
+
}
|
72 |
+
|
73 |
+
/**#@+
|
74 |
+
* @access public
|
75 |
+
* @see Crypt_AES::encrypt()
|
76 |
+
* @see Crypt_AES::decrypt()
|
77 |
+
*/
|
78 |
+
/**
|
79 |
+
* Encrypt / decrypt using the Counter mode.
|
80 |
+
*
|
81 |
+
* Set to -1 since that's what Crypt/Random.php uses to index the CTR mode.
|
82 |
+
*
|
83 |
+
* @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Counter_.28CTR.29
|
84 |
+
*/
|
85 |
+
define('CRYPT_AES_MODE_CTR', -1);
|
86 |
+
/**
|
87 |
+
* Encrypt / decrypt using the Electronic Code Book mode.
|
88 |
+
*
|
89 |
+
* @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Electronic_codebook_.28ECB.29
|
90 |
+
*/
|
91 |
+
define('CRYPT_AES_MODE_ECB', 1);
|
92 |
+
/**
|
93 |
+
* Encrypt / decrypt using the Code Book Chaining mode.
|
94 |
+
*
|
95 |
+
* @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher-block_chaining_.28CBC.29
|
96 |
+
*/
|
97 |
+
define('CRYPT_AES_MODE_CBC', 2);
|
98 |
+
/**
|
99 |
+
* Encrypt / decrypt using the Cipher Feedback mode.
|
100 |
+
*
|
101 |
+
* @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher_feedback_.28CFB.29
|
102 |
+
*/
|
103 |
+
define('CRYPT_AES_MODE_CFB', 3);
|
104 |
+
/**
|
105 |
+
* Encrypt / decrypt using the Cipher Feedback mode.
|
106 |
+
*
|
107 |
+
* @link http://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Output_feedback_.28OFB.29
|
108 |
+
*/
|
109 |
+
define('CRYPT_AES_MODE_OFB', 4);
|
110 |
+
/**#@-*/
|
111 |
+
|
112 |
+
/**#@+
|
113 |
+
* @access private
|
114 |
+
* @see Crypt_AES::Crypt_AES()
|
115 |
+
*/
|
116 |
+
/**
|
117 |
+
* Toggles the internal implementation
|
118 |
+
*/
|
119 |
+
define('CRYPT_AES_MODE_INTERNAL', 1);
|
120 |
+
/**
|
121 |
+
* Toggles the mcrypt implementation
|
122 |
+
*/
|
123 |
+
define('CRYPT_AES_MODE_MCRYPT', 2);
|
124 |
+
/**#@-*/
|
125 |
+
|
126 |
+
/**
|
127 |
+
* Pure-PHP implementation of AES.
|
128 |
+
*
|
129 |
+
* @author Jim Wigginton <terrafrost@php.net>
|
130 |
+
* @version 0.1.0
|
131 |
+
* @access public
|
132 |
+
* @package Crypt_AES
|
133 |
+
*/
|
134 |
+
class Crypt_AES extends Crypt_Rijndael {
|
135 |
+
/**
|
136 |
+
* mcrypt resource for encryption
|
137 |
+
*
|
138 |
+
* The mcrypt resource can be recreated every time something needs to be created or it can be created just once.
|
139 |
+
* Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode.
|
140 |
+
*
|
141 |
+
* @see Crypt_AES::encrypt()
|
142 |
+
* @var String
|
143 |
+
* @access private
|
144 |
+
*/
|
145 |
+
var $enmcrypt;
|
146 |
+
|
147 |
+
/**
|
148 |
+
* mcrypt resource for decryption
|
149 |
+
*
|
150 |
+
* The mcrypt resource can be recreated every time something needs to be created or it can be created just once.
|
151 |
+
* Since mcrypt operates in continuous mode, by default, it'll need to be recreated when in non-continuous mode.
|
152 |
+
*
|
153 |
+
* @see Crypt_AES::decrypt()
|
154 |
+
* @var String
|
155 |
+
* @access private
|
156 |
+
*/
|
157 |
+
var $demcrypt;
|
158 |
+
|
159 |
+
/**
|
160 |
+
* mcrypt resource for CFB mode
|
161 |
+
*
|
162 |
+
* @see Crypt_AES::encrypt()
|
163 |
+
* @see Crypt_AES::decrypt()
|
164 |
+
* @var String
|
165 |
+
* @access private
|
166 |
+
*/
|
167 |
+
var $ecb;
|
168 |
+
|
169 |
+
/**
|
170 |
+
* Default Constructor.
|
171 |
+
*
|
172 |
+
* Determines whether or not the mcrypt extension should be used. $mode should only, at present, be
|
173 |
+
* CRYPT_AES_MODE_ECB or CRYPT_AES_MODE_CBC. If not explictly set, CRYPT_AES_MODE_CBC will be used.
|
174 |
+
*
|
175 |
+
* @param optional Integer $mode
|
176 |
+
* @return Crypt_AES
|
177 |
+
* @access public
|
178 |
+
*/
|
179 |
+
function Crypt_AES($mode = CRYPT_AES_MODE_CBC)
|
180 |
+
{
|
181 |
+
if ( !defined('CRYPT_AES_MODE') ) {
|
182 |
+
switch (true) {
|
183 |
+
case extension_loaded('mcrypt') && in_array('rijndael-128', mcrypt_list_algorithms()):
|
184 |
+
define('CRYPT_AES_MODE', CRYPT_AES_MODE_MCRYPT);
|
185 |
+
break;
|
186 |
+
default:
|
187 |
+
define('CRYPT_AES_MODE', CRYPT_AES_MODE_INTERNAL);
|
188 |
+
}
|
189 |
+
}
|
190 |
+
|
191 |
+
switch ( CRYPT_AES_MODE ) {
|
192 |
+
case CRYPT_AES_MODE_MCRYPT:
|
193 |
+
switch ($mode) {
|
194 |
+
case CRYPT_AES_MODE_ECB:
|
195 |
+
$this->paddable = true;
|
196 |
+
$this->mode = MCRYPT_MODE_ECB;
|
197 |
+
break;
|
198 |
+
case CRYPT_AES_MODE_CTR:
|
199 |
+
// ctr doesn't have a constant associated with it even though it appears to be fairly widely
|
200 |
+
// supported. in lieu of knowing just how widely supported it is, i've, for now, opted not to
|
201 |
+
// include a compatibility layer. the layer has been implemented but, for now, is commented out.
|
202 |
+
$this->mode = 'ctr';
|
203 |
+
//$this->mode = in_array('ctr', mcrypt_list_modes()) ? 'ctr' : CRYPT_AES_MODE_CTR;
|
204 |
+
break;
|
205 |
+
case CRYPT_AES_MODE_CFB:
|
206 |
+
$this->mode = 'ncfb';
|
207 |
+
break;
|
208 |
+
case CRYPT_AES_MODE_OFB:
|
209 |
+
$this->mode = MCRYPT_MODE_NOFB;
|
210 |
+
break;
|
211 |
+
case CRYPT_AES_MODE_CBC:
|
212 |
+
default:
|
213 |
+
$this->paddable = true;
|
214 |
+
$this->mode = MCRYPT_MODE_CBC;
|
215 |
+
}
|
216 |
+
|
217 |
+
$this->debuffer = $this->enbuffer = '';
|
218 |
+
|
219 |
+
break;
|
220 |
+
default:
|
221 |
+
switch ($mode) {
|
222 |
+
case CRYPT_AES_MODE_ECB:
|
223 |
+
$this->paddable = true;
|
224 |
+
$this->mode = CRYPT_RIJNDAEL_MODE_ECB;
|
225 |
+
break;
|
226 |
+
case CRYPT_AES_MODE_CTR:
|
227 |
+
$this->mode = CRYPT_RIJNDAEL_MODE_CTR;
|
228 |
+
break;
|
229 |
+
case CRYPT_AES_MODE_CFB:
|
230 |
+
$this->mode = CRYPT_RIJNDAEL_MODE_CFB;
|
231 |
+
break;
|
232 |
+
case CRYPT_AES_MODE_OFB:
|
233 |
+
$this->mode = CRYPT_RIJNDAEL_MODE_OFB;
|
234 |
+
break;
|
235 |
+
case CRYPT_AES_MODE_CBC:
|
236 |
+
default:
|
237 |
+
$this->paddable = true;
|
238 |
+
$this->mode = CRYPT_RIJNDAEL_MODE_CBC;
|
239 |
+
}
|
240 |
+
}
|
241 |
+
|
242 |
+
if (CRYPT_AES_MODE == CRYPT_AES_MODE_INTERNAL) {
|
243 |
+
parent::Crypt_Rijndael($this->mode);
|
244 |
+
}
|
245 |
+
}
|
246 |
+
|
247 |
+
/**
|
248 |
+
* Dummy function
|
249 |
+
*
|
250 |
+
* Since Crypt_AES extends Crypt_Rijndael, this function is, technically, available, but it doesn't do anything.
|
251 |
+
*
|
252 |
+
* @access public
|
253 |
+
* @param Integer $length
|
254 |
+
*/
|
255 |
+
function setBlockLength($length)
|
256 |
+
{
|
257 |
+
return;
|
258 |
+
}
|
259 |
+
|
260 |
+
|
261 |
+
/**
|
262 |
+
* Sets the initialization vector. (optional)
|
263 |
+
*
|
264 |
+
* SetIV is not required when CRYPT_RIJNDAEL_MODE_ECB is being used. If not explictly set, it'll be assumed
|
265 |
+
* to be all zero's.
|
266 |
+
*
|
267 |
+
* @access public
|
268 |
+
* @param String $iv
|
269 |
+
*/
|
270 |
+
function setIV($iv)
|
271 |
+
{
|
272 |
+
parent::setIV($iv);
|
273 |
+
if ( CRYPT_AES_MODE == CRYPT_AES_MODE_MCRYPT ) {
|
274 |
+
$this->changed = true;
|
275 |
+
}
|
276 |
+
}
|
277 |
+
|
278 |
+
/**
|
279 |
+
* Encrypts a message.
|
280 |
+
*
|
281 |
+
* $plaintext will be padded with up to 16 additional bytes. Other AES implementations may or may not pad in the
|
282 |
+
* same manner. Other common approaches to padding and the reasons why it's necessary are discussed in the following
|
283 |
+
* URL:
|
284 |
+
*
|
285 |
+
* {@link http://www.di-mgt.com.au/cryptopad.html http://www.di-mgt.com.au/cryptopad.html}
|
286 |
+
*
|
287 |
+
* An alternative to padding is to, separately, send the length of the file. This is what SSH, in fact, does.
|
288 |
+
* strlen($plaintext) will still need to be a multiple of 16, however, arbitrary values can be added to make it that
|
289 |
+
* length.
|
290 |
+
*
|
291 |
+
* @see Crypt_AES::decrypt()
|
292 |
+
* @access public
|
293 |
+
* @param String $plaintext
|
294 |
+
*/
|
295 |
+
function encrypt($plaintext)
|
296 |
+
{
|
297 |
+
if ( CRYPT_AES_MODE == CRYPT_AES_MODE_MCRYPT ) {
|
298 |
+
$changed = $this->changed;
|
299 |
+
$this->_mcryptSetup();
|
300 |
+
/*
|
301 |
+
if ($this->mode == CRYPT_AES_MODE_CTR) {
|
302 |
+
$iv = $this->encryptIV;
|
303 |
+
$xor = mcrypt_generic($this->enmcrypt, $this->_generate_xor(strlen($plaintext), $iv));
|
304 |
+
$ciphertext = $plaintext ^ $xor;
|
305 |
+
if ($this->continuousBuffer) {
|
306 |
+
$this->encryptIV = $iv;
|
307 |
+
}
|
308 |
+
return $ciphertext;
|
309 |
+
}
|
310 |
+
*/
|
311 |
+
// re: http://phpseclib.sourceforge.net/cfb-demo.phps
|
312 |
+
// using mcrypt's default handing of CFB the above would output two different things. using phpseclib's
|
313 |
+
// rewritten CFB implementation the above outputs the same thing twice.
|
314 |
+
if ($this->mode == 'ncfb') {
|
315 |
+
if ($changed) {
|
316 |
+
$this->ecb = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_ECB, '');
|
317 |
+
mcrypt_generic_init($this->ecb, $this->key, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0");
|
318 |
+
}
|
319 |
+
|
320 |
+
if (strlen($this->enbuffer)) {
|
321 |
+
$ciphertext = $plaintext ^ substr($this->encryptIV, strlen($this->enbuffer));
|
322 |
+
$this->enbuffer.= $ciphertext;
|
323 |
+
if (strlen($this->enbuffer) == 16) {
|
324 |
+
$this->encryptIV = $this->enbuffer;
|
325 |
+
$this->enbuffer = '';
|
326 |
+
mcrypt_generic_init($this->enmcrypt, $this->key, $this->encryptIV);
|
327 |
+
}
|
328 |
+
$plaintext = substr($plaintext, strlen($ciphertext));
|
329 |
+
} else {
|
330 |
+
$ciphertext = '';
|
331 |
+
}
|
332 |
+
|
333 |
+
$last_pos = strlen($plaintext) & 0xFFFFFFF0;
|
334 |
+
$ciphertext.= $last_pos ? mcrypt_generic($this->enmcrypt, substr($plaintext, 0, $last_pos)) : '';
|
335 |
+
|
336 |
+
if (strlen($plaintext) & 0xF) {
|
337 |
+
if (strlen($ciphertext)) {
|
338 |
+
$this->encryptIV = substr($ciphertext, -16);
|
339 |
+
}
|
340 |
+
$this->encryptIV = mcrypt_generic($this->ecb, $this->encryptIV);
|
341 |
+
$this->enbuffer = substr($plaintext, $last_pos) ^ $this->encryptIV;
|
342 |
+
$ciphertext.= $this->enbuffer;
|
343 |
+
}
|
344 |
+
|
345 |
+
return $ciphertext;
|
346 |
+
}
|
347 |
+
|
348 |
+
if ($this->paddable) {
|
349 |
+
$plaintext = $this->_pad($plaintext);
|
350 |
+
}
|
351 |
+
|
352 |
+
$ciphertext = mcrypt_generic($this->enmcrypt, $plaintext);
|
353 |
+
|
354 |
+
if (!$this->continuousBuffer) {
|
355 |
+
mcrypt_generic_init($this->enmcrypt, $this->key, $this->iv);
|
356 |
+
}
|
357 |
+
|
358 |
+
return $ciphertext;
|
359 |
+
}
|
360 |
+
|
361 |
+
return parent::encrypt($plaintext);
|
362 |
+
}
|
363 |
+
|
364 |
+
/**
|
365 |
+
* Decrypts a message.
|
366 |
+
*
|
367 |
+
* If strlen($ciphertext) is not a multiple of 16, null bytes will be added to the end of the string until it is.
|
368 |
+
*
|
369 |
+
* @see Crypt_AES::encrypt()
|
370 |
+
* @access public
|
371 |
+
* @param String $ciphertext
|
372 |
+
*/
|
373 |
+
function decrypt($ciphertext)
|
374 |
+
{
|
375 |
+
if ( CRYPT_AES_MODE == CRYPT_AES_MODE_MCRYPT ) {
|
376 |
+
$changed = $this->changed;
|
377 |
+
$this->_mcryptSetup();
|
378 |
+
/*
|
379 |
+
if ($this->mode == CRYPT_AES_MODE_CTR) {
|
380 |
+
$iv = $this->decryptIV;
|
381 |
+
$xor = mcrypt_generic($this->enmcrypt, $this->_generate_xor(strlen($ciphertext), $iv));
|
382 |
+
$plaintext = $ciphertext ^ $xor;
|
383 |
+
if ($this->continuousBuffer) {
|
384 |
+
$this->decryptIV = $iv;
|
385 |
+
}
|
386 |
+
return $plaintext;
|
387 |
+
}
|
388 |
+
*/
|
389 |
+
if ($this->mode == 'ncfb') {
|
390 |
+
if ($changed) {
|
391 |
+
$this->ecb = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_ECB, '');
|
392 |
+
mcrypt_generic_init($this->ecb, $this->key, "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0");
|
393 |
+
}
|
394 |
+
|
395 |
+
if (strlen($this->debuffer)) {
|
396 |
+
$plaintext = $ciphertext ^ substr($this->decryptIV, strlen($this->debuffer));
|
397 |
+
|
398 |
+
$this->debuffer.= substr($ciphertext, 0, strlen($plaintext));
|
399 |
+
if (strlen($this->debuffer) == 16) {
|
400 |
+
$this->decryptIV = $this->debuffer;
|
401 |
+
$this->debuffer = '';
|
402 |
+
mcrypt_generic_init($this->demcrypt, $this->key, $this->decryptIV);
|
403 |
+
}
|
404 |
+
$ciphertext = substr($ciphertext, strlen($plaintext));
|
405 |
+
} else {
|
406 |
+
$plaintext = '';
|
407 |
+
}
|
408 |
+
|
409 |
+
$last_pos = strlen($ciphertext) & 0xFFFFFFF0;
|
410 |
+
$plaintext.= $last_pos ? mdecrypt_generic($this->demcrypt, substr($ciphertext, 0, $last_pos)) : '';
|
411 |
+
|
412 |
+
if (strlen($ciphertext) & 0xF) {
|
413 |
+
if (strlen($plaintext)) {
|
414 |
+
$this->decryptIV = substr($ciphertext, $last_pos - 16, 16);
|
415 |
+
}
|
416 |
+
$this->decryptIV = mcrypt_generic($this->ecb, $this->decryptIV);
|
417 |
+
$this->debuffer = substr($ciphertext, $last_pos);
|
418 |
+
$plaintext.= $this->debuffer ^ $this->decryptIV;
|
419 |
+
}
|
420 |
+
|
421 |
+
return $plaintext;
|
422 |
+
}
|
423 |
+
|
424 |
+
if ($this->paddable) {
|
425 |
+
// we pad with chr(0) since that's what mcrypt_generic does. to quote from http://php.net/function.mcrypt-generic :
|
426 |
+
// "The data is padded with "\0" to make sure the length of the data is n * blocksize."
|
427 |
+
$ciphertext = str_pad($ciphertext, (strlen($ciphertext) + 15) & 0xFFFFFFF0, chr(0));
|
428 |
+
}
|
429 |
+
|
430 |
+
$plaintext = mdecrypt_generic($this->demcrypt, $ciphertext);
|
431 |
+
|
432 |
+
if (!$this->continuousBuffer) {
|
433 |
+
mcrypt_generic_init($this->demcrypt, $this->key, $this->iv);
|
434 |
+
}
|
435 |
+
|
436 |
+
return $this->paddable ? $this->_unpad($plaintext) : $plaintext;
|
437 |
+
}
|
438 |
+
|
439 |
+
return parent::decrypt($ciphertext);
|
440 |
+
}
|
441 |
+
|
442 |
+
/**
|
443 |
+
* Setup mcrypt
|
444 |
+
*
|
445 |
+
* Validates all the variables.
|
446 |
+
*
|
447 |
+
* @access private
|
448 |
+
*/
|
449 |
+
function _mcryptSetup()
|
450 |
+
{
|
451 |
+
if (!$this->changed) {
|
452 |
+
return;
|
453 |
+
}
|
454 |
+
|
455 |
+
if (!$this->explicit_key_length) {
|
456 |
+
// this just copied from Crypt_Rijndael::_setup()
|
457 |
+
$length = strlen($this->key) >> 2;
|
458 |
+
if ($length > 8) {
|
459 |
+
$length = 8;
|
460 |
+
} else if ($length < 4) {
|
461 |
+
$length = 4;
|
462 |
+
}
|
463 |
+
$this->Nk = $length;
|
464 |
+
$this->key_size = $length << 2;
|
465 |
+
}
|
466 |
+
|
467 |
+
switch ($this->Nk) {
|
468 |
+
case 4: // 128
|
469 |
+
$this->key_size = 16;
|
470 |
+
break;
|
471 |
+
case 5: // 160
|
472 |
+
case 6: // 192
|
473 |
+
$this->key_size = 24;
|
474 |
+
break;
|
475 |
+
case 7: // 224
|
476 |
+
case 8: // 256
|
477 |
+
$this->key_size = 32;
|
478 |
+
}
|
479 |
+
|
480 |
+
$this->key = str_pad(substr($this->key, 0, $this->key_size), $this->key_size, chr(0));
|
481 |
+
$this->encryptIV = $this->decryptIV = $this->iv = str_pad(substr($this->iv, 0, 16), 16, chr(0));
|
482 |
+
|
483 |
+
if (!isset($this->enmcrypt)) {
|
484 |
+
$mode = $this->mode;
|
485 |
+
//$mode = $this->mode == CRYPT_AES_MODE_CTR ? MCRYPT_MODE_ECB : $this->mode;
|
486 |
+
|
487 |
+
$this->demcrypt = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', $mode, '');
|
488 |
+
$this->enmcrypt = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', $mode, '');
|
489 |
+
} // else should mcrypt_generic_deinit be called?
|
490 |
+
|
491 |
+
mcrypt_generic_init($this->demcrypt, $this->key, $this->iv);
|
492 |
+
mcrypt_generic_init($this->enmcrypt, $this->key, $this->iv);
|
493 |
+
|
494 |
+
$this->changed = false;
|
495 |
+
}
|
496 |
+
|
497 |
+
/**
|
498 |
+
* Encrypts a block
|
499 |
+
*
|
500 |
+
* Optimized over Crypt_Rijndael's implementation by means of loop unrolling.
|
501 |
+
*
|
502 |
+
* @see Crypt_Rijndael::_encryptBlock()
|
503 |
+
* @access private
|
504 |
+
* @param String $in
|
505 |
+
* @return String
|
506 |
+
*/
|
507 |
+
function _encryptBlock($in)
|
508 |
+
{
|
509 |
+
$state = unpack('N*word', $in);
|
510 |
+
|
511 |
+
$Nr = $this->Nr;
|
512 |
+
$w = $this->w;
|
513 |
+
$t0 = $this->t0;
|
514 |
+
$t1 = $this->t1;
|
515 |
+
$t2 = $this->t2;
|
516 |
+
$t3 = $this->t3;
|
517 |
+
|
518 |
+
// addRoundKey and reindex $state
|
519 |
+
$state = array(
|
520 |
+
$state['word1'] ^ $w[0][0],
|
521 |
+
$state['word2'] ^ $w[0][1],
|
522 |
+
$state['word3'] ^ $w[0][2],
|
523 |
+
$state['word4'] ^ $w[0][3]
|
524 |
+
);
|
525 |
+
|
526 |
+
// shiftRows + subWord + mixColumns + addRoundKey
|
527 |
+
// we could loop unroll this and use if statements to do more rounds as necessary, but, in my tests, that yields
|
528 |
+
// only a marginal improvement. since that also, imho, hinders the readability of the code, i've opted not to do it.
|
529 |
+
for ($round = 1; $round < $this->Nr; $round++) {
|
530 |
+
$state = array(
|
531 |
+
$t0[$state[0] & 0xFF000000] ^ $t1[$state[1] & 0x00FF0000] ^ $t2[$state[2] & 0x0000FF00] ^ $t3[$state[3] & 0x000000FF] ^ $w[$round][0],
|
532 |
+
$t0[$state[1] & 0xFF000000] ^ $t1[$state[2] & 0x00FF0000] ^ $t2[$state[3] & 0x0000FF00] ^ $t3[$state[0] & 0x000000FF] ^ $w[$round][1],
|
533 |
+
$t0[$state[2] & 0xFF000000] ^ $t1[$state[3] & 0x00FF0000] ^ $t2[$state[0] & 0x0000FF00] ^ $t3[$state[1] & 0x000000FF] ^ $w[$round][2],
|
534 |
+
$t0[$state[3] & 0xFF000000] ^ $t1[$state[0] & 0x00FF0000] ^ $t2[$state[1] & 0x0000FF00] ^ $t3[$state[2] & 0x000000FF] ^ $w[$round][3]
|
535 |
+
);
|
536 |
+
|
537 |
+
}
|
538 |
+
|
539 |
+
// subWord
|
540 |
+
$state = array(
|
541 |
+
$this->_subWord($state[0]),
|
542 |
+
$this->_subWord($state[1]),
|
543 |
+
$this->_subWord($state[2]),
|
544 |
+
$this->_subWord($state[3])
|
545 |
+
);
|
546 |
+
|
547 |
+
// shiftRows + addRoundKey
|
548 |
+
$state = array(
|
549 |
+
($state[0] & 0xFF000000) ^ ($state[1] & 0x00FF0000) ^ ($state[2] & 0x0000FF00) ^ ($state[3] & 0x000000FF) ^ $this->w[$this->Nr][0],
|
550 |
+
($state[1] & 0xFF000000) ^ ($state[2] & 0x00FF0000) ^ ($state[3] & 0x0000FF00) ^ ($state[0] & 0x000000FF) ^ $this->w[$this->Nr][1],
|
551 |
+
($state[2] & 0xFF000000) ^ ($state[3] & 0x00FF0000) ^ ($state[0] & 0x0000FF00) ^ ($state[1] & 0x000000FF) ^ $this->w[$this->Nr][2],
|
552 |
+
($state[3] & 0xFF000000) ^ ($state[0] & 0x00FF0000) ^ ($state[1] & 0x0000FF00) ^ ($state[2] & 0x000000FF) ^ $this->w[$this->Nr][3]
|
553 |
+
);
|
554 |
+
|
555 |
+
return pack('N*', $state[0], $state[1], $state[2], $state[3]);
|
556 |
+
}
|
557 |
+
|
558 |
+
/**
|
559 |
+
* Decrypts a block
|
560 |
+
*
|
561 |
+
* Optimized over Crypt_Rijndael's implementation by means of loop unrolling.
|
562 |
+
*
|
563 |
+
* @see Crypt_Rijndael::_decryptBlock()
|
564 |
+
* @access private
|
565 |
+
* @param String $in
|
566 |
+
* @return String
|
567 |
+
*/
|
568 |
+
function _decryptBlock($in)
|
569 |
+
{
|
570 |
+
$state = unpack('N*word', $in);
|
571 |
+
|
572 |
+
$Nr = $this->Nr;
|
573 |
+
$dw = $this->dw;
|
574 |
+
$dt0 = $this->dt0;
|
575 |
+
$dt1 = $this->dt1;
|
576 |
+
$dt2 = $this->dt2;
|
577 |
+
$dt3 = $this->dt3;
|
578 |
+
|
579 |
+
// addRoundKey and reindex $state
|
580 |
+
$state = array(
|
581 |
+
$state['word1'] ^ $dw[$this->Nr][0],
|
582 |
+
$state['word2'] ^ $dw[$this->Nr][1],
|
583 |
+
$state['word3'] ^ $dw[$this->Nr][2],
|
584 |
+
$state['word4'] ^ $dw[$this->Nr][3]
|
585 |
+
);
|
586 |
+
|
587 |
+
|
588 |
+
// invShiftRows + invSubBytes + invMixColumns + addRoundKey
|
589 |
+
for ($round = $this->Nr - 1; $round > 0; $round--) {
|
590 |
+
$state = array(
|
591 |
+
$dt0[$state[0] & 0xFF000000] ^ $dt1[$state[3] & 0x00FF0000] ^ $dt2[$state[2] & 0x0000FF00] ^ $dt3[$state[1] & 0x000000FF] ^ $dw[$round][0],
|
592 |
+
$dt0[$state[1] & 0xFF000000] ^ $dt1[$state[0] & 0x00FF0000] ^ $dt2[$state[3] & 0x0000FF00] ^ $dt3[$state[2] & 0x000000FF] ^ $dw[$round][1],
|
593 |
+
$dt0[$state[2] & 0xFF000000] ^ $dt1[$state[1] & 0x00FF0000] ^ $dt2[$state[0] & 0x0000FF00] ^ $dt3[$state[3] & 0x000000FF] ^ $dw[$round][2],
|
594 |
+
$dt0[$state[3] & 0xFF000000] ^ $dt1[$state[2] & 0x00FF0000] ^ $dt2[$state[1] & 0x0000FF00] ^ $dt3[$state[0] & 0x000000FF] ^ $dw[$round][3]
|
595 |
+
);
|
596 |
+
}
|
597 |
+
|
598 |
+
// invShiftRows + invSubWord + addRoundKey
|
599 |
+
$state = array(
|
600 |
+
$this->_invSubWord(($state[0] & 0xFF000000) ^ ($state[3] & 0x00FF0000) ^ ($state[2] & 0x0000FF00) ^ ($state[1] & 0x000000FF)) ^ $dw[0][0],
|
601 |
+
$this->_invSubWord(($state[1] & 0xFF000000) ^ ($state[0] & 0x00FF0000) ^ ($state[3] & 0x0000FF00) ^ ($state[2] & 0x000000FF)) ^ $dw[0][1],
|
602 |
+
$this->_invSubWord(($state[2] & 0xFF000000) ^ ($state[1] & 0x00FF0000) ^ ($state[0] & 0x0000FF00) ^ ($state[3] & 0x000000FF)) ^ $dw[0][2],
|
603 |
+
$this->_invSubWord(($state[3] & 0xFF000000) ^ ($state[2] & 0x00FF0000) ^ ($state[1] & 0x0000FF00) ^ ($state[0] & 0x000000FF)) ^ $dw[0][3]
|
604 |
+
);
|
605 |
+
|
606 |
+
return pack('N*', $state[0], $state[1], $state[2], $state[3]);
|
607 |
+
}
|
608 |
+
}
|
609 |
+
|
610 |
+
// vim: ts=4:sw=4:et:
|
611 |
+
// vim6: fdl=1:
|
includes/phpseclib/Crypt/DES.php
ADDED
@@ -0,0 +1,1295 @@
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1 |
+
<?php
|
2 |
+
/* vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4: */
|
3 |
+
|
4 |
+
/**
|
5 |
+
* Pure-PHP implementation of DES.
|
6 |
+
*
|
7 |
+
* Uses mcrypt, if available, and an internal implementation, otherwise.
|
8 |
+
*
|