$this->_secret_key = $key;
}
public function encode($data)
{
$td = mcrypt_module_open(MCRYPT_RIJNDAEL_256, '', MCRYPT_MODE_CBC, '');
$iv = mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
mcrypt_generic_init($td, $this->_secret_key, $iv);
$encrypted = mcrypt_generic($td, $data);
mcrypt_generic_deinit($td);
return $iv . $encrypted;
}
public function decode($data)
{
$td = mcrypt_module_open(MCRYPT_RIJNDAEL_256, '', MCRYPT_MODE_CBC, '');
$iv = mb_substr($data, 0, 32, 'latin1');
mcrypt_generic_init($td, $this->_secret_key, $iv);
$data = mb_substr($data, 32, mb_strlen($data, 'latin1'), 'latin1');
$data = mdecrypt_generic($td, $data);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return trim($data);
}
}
$aes = new aes();
$aes->setKey('key');
// 加密
$string = $aes->encode('string');
echo $string;
// 解密
$aes->decode($string);
echo $aes;