<?php/* * Created on 2018-9-1 * * To change the template for this generated file go to * Window - Preferences - PHPeclipse - PHP - Code Templates */ /** 用法： Security::encrypt($str,$key); Security::decrypt($str,$key); */ class Security { public static function encrypt($input, $key) { $size = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_ECB); $input = Security::pkcs5_pad($input, $size); $td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_ECB, ''); $iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($td), MCRYPT_RAND); mcrypt_generic_init($td, $key, $iv); $data = mcrypt_generic($td, $input); mcrypt_generic_deinit($td); mcrypt_module_close($td); $data = base64_encode($data); return $data; } private static function pkcs5_pad ($text, $blocksize) { $pad = $blocksize - (strlen($text) % $blocksize); return $text . str_repeat(chr($pad), $pad); } public static function decrypt($sStr, $sKey) { $decrypted= mcrypt_decrypt( MCRYPT_RIJNDAEL_128, $sKey, base64_decode($sStr), MCRYPT_MODE_ECB ); $dec_s = strlen($decrypted); $padding = ord($decrypted[$dec_s-1]); $decrypted = substr($decrypted, 0, -$padding); return $decrypted; } }//用法示例：$str = "www.vevb.com";$key = "123456";echo "原始字符串：".$str."<br/>";$pwdstr = Security::encrypt($str,$key);echo "加密后：".$pwdstr."<br/>";$destr = Security::decrypt($pwdstr,$key);echo "解密结果：".$destr;?> 
