public static ArrayList<byte[]> encod(String message, SecretKeySpec key) throws InvalidKeyException, BadPaddingException, IllegalBlockSizeException, NoSuchPaddingException, NoSuchAlgorithmException, IOException {
        Cipher cifer = Cipher.getInstance("AES/CBC/PKCS5Padding");
        cifer.init(Cipher.ENCRYPT_MODE,key);
        byte[] text=message.getBytes();
        byte[] cifered=cifer.doFinal(text);
        ArrayList<byte[]> array=new ArrayList<>();
        array.add(cifered);
        byte[] encP=cifer.getParameters().getEncoded();
        array.add(encP);
        return array;
    }
    public static String decod(byte[] message,SecretKeySpec key,byte[] parm) throws InvalidKeyException, BadPaddingException, IllegalBlockSizeException, NoSuchPaddingException, NoSuchAlgorithmException, InvalidAlgorithmParameterException, IOException {
        Cipher cifer = Cipher.getInstance("AES/CBC/PKCS5Padding");
        AlgorithmParameters aesParams = AlgorithmParameters.getInstance("AES");
        aesParams.init(parm);
        cifer.init(Cipher.DECRYPT_MODE,key,aesParams);
        byte[] text=cifer.doFinal(message);
        return new String(text);
    }