@Override
	public int hashCode() {
		final int prime = 31;
		int result = 1;
		result = prime * result + ((decodedValue == null) ? 0 : decodedValue.hashCode());
		result = prime * result + ((encodedValue == null) ? 0 : encodedValue.hashCode());
		result = prime * result + ((symmetricKey == null) ? 0 : symmetricKey.hashCode());
		return result;
	}