docs: public String decrypt(final String encypted)
  		throws InvalidKeyException, NoSuchAlgorithmException, NoSuchPaddingException,
  		DecoderException, IllegalBlockSizeException, BadPaddingException, InvalidKeySpecException,
  		InvalidAlgorithmParameterException, IOException
  	{
  		initialize();
  		final byte[] dec = HexExtensions.decodeHex(encypted.toCharArray());
  		final byte[] utf8 = this.cipher.doFinal(dec);
  		return new String(utf8, "UTF-8");
  	}