本文執行個體講述了PHP的AES密碼編譯演算法。分享給大家供大家參考,具體如下:
<?phpclass MCrypt { private $hex_iv = '00000000000000000000000000000000'; # converted JAVA byte code in to HEX and placed it here private $key = 'U1MjU1M0FDOUZ.Qz'; #Same as in JAVA function __construct() { $this->key = hash('sha256', $this->key, true); //echo $this->key.'<br/>'; } function encrypt($str) { $td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, ''); mcrypt_generic_init($td, $this->key, $this->hexToStr($this->hex_iv)); $block = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC); $pad = $block - (strlen($str) % $block); $str .= str_repeat(chr($pad), $pad); $encrypted = mcrypt_generic($td, $str); mcrypt_generic_deinit($td); mcrypt_module_close($td); return base64_encode($encrypted); } function decrypt($code) { $td = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, ''); mcrypt_generic_init($td, $this->key, $this->hexToStr($this->hex_iv)); $str = mdecrypt_generic($td, base64_decode($code)); $block = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC); mcrypt_generic_deinit($td); mcrypt_module_close($td); return $this->strippadding($str); } /* For PKCS7 padding */ private function addpadding($string, $blocksize = 16) { $len = strlen($string); $pad = $blocksize - ($len % $blocksize); $string .= str_repeat(chr($pad), $pad); return $string; } private function strippadding($string) { $slast = ord(substr($string, -1)); $slastc = chr($slast); $pcheck = substr($string, -$slast); if (preg_match("/$slastc{" . $slast . "}/", $string)) { $string = substr($string, 0, strlen($string) - $slast); return $string; } else { return false; } } function hexToStr($hex) { $string=''; for ($i=0; $i < strlen($hex)-1; $i+=2) { $string .= chr(hexdec($hex[$i].$hex[$i+1])); } return $string; }}$encryption = new MCrypt();echo $encryption->encrypt('123456') . "<br/>";echo $encryption->decrypt('tpyxISJ83dqEs3uw8bN/+w==');?>
PS:關於加密解密感興趣的朋友還可以參考本站線上工具:
密碼安全性線上檢測:
http://tools.jb51.net/password/my_password_safe
高強度密碼產生器:
http://tools.jb51.net/password/CreateStrongPassword
MD5線上加密工具:
http://tools.jb51.net/password/CreateMD5Password
迅雷、快車、旋風URL加密/解密工具:
http://tools.jb51.net/password/urlrethunder
線上散列/雜湊演算法加密工具:
http://tools.jb51.net/password/hash_encrypt
更多關於PHP相關內容感興趣的讀者可查看本站專題:《php加密方法總結》、《PHP編碼與轉碼操作技巧匯總》、《php物件導向程式設計入門教程》、《PHP數學運算技巧總結》、《PHP數組(Array)操作技巧大全》、《php字串(string)用法總結》、《PHP資料結構與演算法教程》、《php程式設計演算法總結》、《phpRegex用法總結》、及《php常見資料庫操作技巧匯總》
希望本文所述對大家PHP程式設計有所協助。