| 1 | <?php |
| 2 | /*************************************************************************** |
| 3 | * Copyright (C) 2003-2008 Polytechnique.org * |
| 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 | ***************************************************************************/ |
| 21 | |
| 22 | function hash_encrypt($s) { |
| 23 | return sha1($s); |
| 24 | } |
| 25 | |
| 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 = $k; |
| 33 | } |
| 34 | for ($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; |
| 39 | } |
| 40 | // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8: |
| 41 | ?> |