php加密解密处理类--参 考：Discuz论坛的passpor
<?php
| 02 | /*=========================================================== |
| 04 | = GPL (The GNU GENERAL PUBLIC LICENSE Version 2, June 1991) |
| 05 | =------------------------------------------------------------ |
| 06 | = 文件名称：cls.sys_crypt.php |
| 09 | = 参 考：Discuz论坛的passport相关函数 |
| 10 | =------------------------------------------------------------ |
| 11 | = Script Written By PHPWMS项目组 |
| 14 | ============================================================*/ |
| 21 | public function __construct($crypt_key) { |
| 22 | $this -> crypt_key = $crypt_key; |
| 25 | public function php_encrypt($txt) { |
| 26 | srand((double)microtime() * 1000000); |
| 27 | $encrypt_key = md5(rand(0,32000)); |
| 30 | for($i = 0;$i<strlen($txt);$i++) { |
| 31 | $ctr = $ctr == strlen($encrypt_key) ? 0 : $ctr; |
| 32 | $tmp .= $encrypt_key[$ctr].($txt[$i]^$encrypt_key[$ctr++]); |
| 34 | return base64_encode(self::__key($tmp,$this -> crypt_key)); |
| 37 | public function php_decrypt($txt) { |
| 38 | $txt = self::__key(base64_decode($txt),$this -> crypt_key); |
| 40 | for($i = 0;$i < strlen($txt); $i++) { |
| 42 | $tmp .= $txt[++$i] ^ $md5; |
| 47 | private function __key($txt,$encrypt_key) { |
| 48 | $encrypt_key = md5($encrypt_key); |
| 51 | for($i = 0; $i < strlen($txt); $i++) { |
| 52 | $ctr = $ctr == strlen($encrypt_key) ? 0 : $ctr; |
| 53 | $tmp .= $txt[$i] ^ $encrypt_key[$ctr++]; |
| 58 | public function __destruct() { |
| 59 | $this -> crypt_key = null; |
| 64 | $sc = new SysCrypt('phpwms'); |
| 66 | print($sc -> php_encrypt($text)); |
| 68 | print($sc -> php_decrypt($sc -> php_encrypt($text))); |
/*=========================================================== = 版权协议： = GPL (The GNU GENERAL PUBLIC LICENSE Version 2, June 1991) =------------------------------------------------------------ = 文件名称：cls.sys_crypt.php = 摘 要：php加密解密处理类 = 版 本：1.0 = 参 考：Discuz论坛的passport相关函数 =------------------------------------------------------------ = Script Written By PHPWMS项目组 = 最后更新：xinge = 最后日期：2007-12-09 ============================================================*/ class SysCrypt { private $crypt_key; // 构造函数 public function __construct($crypt_key) { $this -> crypt_key = $crypt_key; } public function php_encrypt($txt) { srand((double)microtime() * 1000000); $encrypt_key = md5(rand(0,32000)); $ctr = 0; $tmp = ''; for($i = 0;$i<strlen($txt);$i++) { $ctr = $ctr == strlen($encrypt_key) ? 0 : $ctr; $tmp .= $encrypt_key[$ctr].($txt[$i]^$encrypt_key[$ctr++]); } return base64_encode(self::__key($tmp,$this -> crypt_key)); } public function php_decrypt($txt) { $txt = self::__key(base64_decode($txt),$this -> crypt_key); $tmp = ''; for($i = 0;$i < strlen($txt); $i++) { $md5 = $txt[$i]; $tmp .= $txt[++$i] ^ $md5; } return $tmp; } private function __key($txt,$encrypt_key) { $encrypt_key = md5($encrypt_key); $ctr = 0; $tmp = ''; for($i = 0; $i < strlen($txt); $i++) { $ctr = $ctr == strlen($encrypt_key) ? 0 : $ctr; $tmp .= $txt[$i] ^ $encrypt_key[$ctr++]; } return $tmp; } public function __destruct() { $this -> crypt_key = null; } } $sc = new SysCrypt('phpwms'); $text = '110'; print($sc -> php_encrypt($text)); print('<br>'); print($sc -> php_decrypt($sc -> php_encrypt($text))); ?>