secret_key = $key;
$this->pad_method =$method;
$this->iv = $iv;
$this->mode = $mode;
$this->cipher = $cipher;
}
protected function pad_or_unpad($str, $ext)
{
if (!is_null($this->pad_method)) {
$func_name = __CLASS__ . '::' . $this->pad_method . '_' . $ext . 'pad';
if (is_callable($func_name)) {
$size = mcrypt_get_block_size($this->cipher, $this->mode);
return call_user_func($func_name, $str, $size);
}
}
return $str;
}
protected function pad($str)
{
return $this->pad_or_unpad($str, '');
}
protected function unpad($str)
{
return $this->pad_or_unpad($str, 'un');
}
public function encrypt($str)
{
$str = $this->pad($str);
$td = mcrypt_module_open($this->cipher, '', $this->mode, '');
if (empty($this->iv)) {
$iv = @mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
} else {
$iv = $this->iv;
}
mcrypt_generic_init($td, $this->secret_key, $iv);
$cyper_text = mcrypt_generic($td, $str);
$rt = base64_encode($cyper_text);
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return $rt;
}
public function decrypt($str)
{
$td = mcrypt_module_open($this->cipher, '', $this->mode, '');
if (empty($this->iv)) {
$iv = @mcrypt_create_iv(mcrypt_enc_get_iv_size($td), MCRYPT_RAND);
} else {
$iv = $this->iv;
}
mcrypt_generic_init($td, $this->secret_key, $iv);
$decrypted_text = mdecrypt_generic($td, base64_decode($str));
$rt = $decrypted_text;
mcrypt_generic_deinit($td);
mcrypt_module_close($td);
return $this->unpad($rt);
}
public static function pkcs7_pad($text, $blocksize)
{
$pad = $blocksize - (strlen($text) % $blocksize);
return $text . str_repeat(chr($pad), $pad);
}
public static function pkcs7_unpad($text)
{
$pad = ord($text[strlen($text) - 1]);
if ($pad > strlen($text)) return false;
if (strspn($text, chr($pad), strlen($text) - $pad) != $pad) return false;
return substr($text, 0, -1 * $pad);
}
}
$aes = new AES('624834668453468544235752'); //密钥
$loginid=$aes->decrypt($loginid); //解密
exit;
if(strstr($_SERVER['HTTP_X_FORWARDED_FOR'],"211.44.188.")){
//$test=$aes->encrypt('HBE_H_H9999');
//var_dump($test);
//exit;
}
?>