private byte[] decryptdata(byte[] bytearraytodecrypt, string key)
{

	AesCryptoServiceProvider keydecrypt = new AesCryptoServiceProvider();
	keydecrypt.BlockSize = 128;
	keydecrypt.KeySize = 256;
	keydecrypt.Key = System.Text.Encoding.UTF8.GetBytes(key);
	keydecrypt.Padding = PaddingMode.PKCS7;
	keydecrypt.Mode = CipherMode.ECB;
	ICryptoTransform crypto1 = keydecrypt.CreateDecryptor(keydecrypt.Key, keydecrypt.IV);

	byte[] returnbytearray = crypto1.TransformFinalBlock(bytearraytodecrypt, 0, bytearraytodecrypt.Length);
	crypto1.Dispose();
	return returnbytearray;
}