code: public byte[] encodeBytes(byte[] rgbValue)
          throws NoSuchAlgorithmException
      {
          rgbValue = this.encrypt(rgbValue);
          rgbValue = super.encodeBytes(rgbValue); // Base64 encoding
          return rgbValue;
      }
docs: Encode the byte string - OVERRIDE this.
  @param rgbValue
  @return
  @throws NoSuchAlgorithmException