PHP加密解密也是常有的事,最近在弄相关的东西,发现discuz论坛里的PHP加密解密处理类代码,感觉挺不错,在用的时候,要参考Discuz论坛的passport相关函数,后面我会附上使用方法,先把类代码帖上来:
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<?php /*======================================================== = 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 =========================================================*/ 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; } } ?> |
建议将此类保存文件名为:cls.sys_crypt.php
使用方法说明:
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<?php //使用前请先引入类文件,如: include 'cls.sys_crypt.php' ; $sc = new SysCrypt( 'phpwms' ); $text = '110' ; print ( $sc -> php_encrypt( $text )); print ( '<br>' ); print ( $sc -> php_decrypt( $sc -> php_encrypt( $text ))); ?> |
来源:https://www.cnblogs.com/tcode/p/5958485.html