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1 | <?php |
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2 | /*************************************************************************** |
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3 | * Copyright (C) 2003-2008 Polytechnique.org * |
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4 | * http://opensource.polytechnique.org/ * |
5 | * * |
6 | * This program is free software; you can redistribute it and/or modify * |
7 | * it under the terms of the GNU General Public License as published by * |
8 | * the Free Software Foundation; either version 2 of the License, or * |
9 | * (at your option) any later version. * |
10 | * * |
11 | * This program is distributed in the hope that it will be useful, * |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
14 | * GNU General Public License for more details. * |
15 | * * |
16 | * You should have received a copy of the GNU General Public License * |
17 | * along with this program; if not, write to the Free Software * |
18 | * Foundation, Inc., * |
19 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * |
20 | ***************************************************************************/ |
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21 | |
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22 | function hash_encrypt($s) { |
23 | return sha1($s); |
24 | } |
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25 | |
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26 | function hash_xor($a, $b) { |
27 | $c = ""; |
28 | $i = strlen($a); |
29 | $j = strlen($b); |
30 | if ($i < $j) { |
31 | $d = $a; $a = $b; $b = $d; |
32 | $k = $i; $i = $j; $j = $k; |
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33 | } |
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34 | for ($k = 0; $k < $j; $k++) |
35 | $c .= dechex(hexdec($a{$k}) ^ hexdec($b{$k})); |
36 | for (; $k < $i; $k++) |
37 | $c .= $a{$k}; |
38 | return $c; |
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39 | } |
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40 | // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8: |
41 | ?> |