PHP实现的DES加密解密实例代码,phpdes加密解密实例
PHP实现的DES加密解密实例代码,phpdes加密解密实例
本文实例讲述了PHP实现的DES加密解密实例。分享给大家供大家参考,具体如下:
<?php $key = 'very important data'; function jiami($key, $str) { /* Open module, and create IV */ $td = mcrypt_module_open('des', '', 'ecb', ''); //$td = mcrypt_module_open(MCRYPT_DES, '', MCRYPT_MODE_CBC, ''); //$td = mcrypt_module_open('des', '', 'cbc', ''); $key = substr($key, 0, mcrypt_enc_get_key_size($td)); $iv_size = mcrypt_enc_get_iv_size($td); $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); /* Initialize encryption handle */ if (mcrypt_generic_init($td, $key, $iv) === -1) { return FALSE; } /* Encrypt data */ $c_t = mcrypt_generic($td, $str); /* Clean up */ mcrypt_generic_deinit($td); mcrypt_module_close($td); return $c_t; } function jiemi($key, $str) { /* Open module, and create IV */ $td = mcrypt_module_open('des', '', 'ecb', ''); //$td = mcrypt_module_open(MCRYPT_DES, '', MCRYPT_MODE_CBC, ''); //$td = mcrypt_module_open('des', '', 'cbc', ''); $key = substr($key, 0, mcrypt_enc_get_key_size($td)); $iv_size = mcrypt_enc_get_iv_size($td); $iv = mcrypt_create_iv($iv_size, MCRYPT_RAND); /* Initialize encryption handle */ if (mcrypt_generic_init($td, $key, $iv) === -1) { return FALSE; } /* Reinitialize buffers for decryption */ $p_t = mdecrypt_generic($td, $str); /* Clean up */ mcrypt_generic_deinit($td); mcrypt_module_close($td); return trim($p_t); } $str = 'hello world!'; echo 'key:' . $key . '<br>'; echo 'str:' . $str . '<br>'; $jiami = jiami($key, $str); echo '加密:' . $jiami . '<br>'; file_put_contents('jiamiqian.txt', $str); file_put_contents('jiamihou.txt', $jiami); $jiemi = jiemi($key, $jiami); echo '解密:' . $jiemi . '<br>';
更多关于PHP相关内容感兴趣的读者可查看本站专题:《php加密方法总结》、《PHP运算与运算符用法总结》、《PHP网络编程技巧总结》、《PHP基本语法入门教程》、《php操作office文档技巧总结(包括word,excel,access,ppt)》、《php日期与时间用法总结》、《php面向对象程序设计入门教程》、《php字符串(string)用法总结》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》
希望本文所述对大家PHP程序设计有所帮助。
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