超強力な PHP 暗号化および復号化拡張機能: cryptopp

class cryptopp {    public function __construct($param);    public function setkey($param);    public function encode($param);    public function decode($param);    public static function enhex($param);    public static function dehex($param);    public static function enbase64($param);    public static function debase64($param);    public static function enbase32($param);    public static function debase32($param);    public static function md5($param);    public static function sha1($param);    public static function sha256($param);    public static function sha512($param);}

$key = "key";$cryptopp = new cryptopp($key);$str = "1234567890";$tmp = $cryptopp->encode($str);header('content-type:text/html;charset=utf-8');echo $str.'<br />';echo $tmp.'<br />';echo $cryptopp->decode($tmp);