static byte[] encryptData(byte[] password, int size, byte[] data) {
    try {
      Cipher c = Cipher.getInstance(ENCRYPT_DATA_ALGORITHM);
      c.init(Cipher.ENCRYPT_MODE, new SecretKeySpec(password, SECRET_KEY_ALGORITHM), CBC_SALT_DATA);
      c.update(new byte[]{(byte)(size >> 24), (byte)(size >> 16), (byte)(size >> 8), (byte)(size)});
      return c.doFinal(data);
    }
    catch (Exception e) {
      throw new IllegalStateException(ENCRYPT_DATA_ALGORITHM + " is not available", e);
    }
  }
static byte[] encryptData(byte[] password, int size, byte[] data)