001/*
002 * nimbus-jose-jwt
003 *
004 * Copyright 2012-2016, Connect2id Ltd.
005 *
006 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use
007 * this file except in compliance with the License. You may obtain a copy of the
008 * License at
009 *
010 *    http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing, software distributed
013 * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
014 * CONDITIONS OF ANY KIND, either express or implied. See the License for the
015 * specific language governing permissions and limitations under the License.
016 */
017
018package com.nimbusds.jose;
019
020
021/**
022 * Enumeration of JOSE algorithm implementation requirements. Refers to the 
023 * requirement levels defined in RFC 2119.
024 *
025 * @author Vladimir Dzhuvinov
026 * @version 2012-09-17
027 */
028public enum Requirement {
029
030
031        /**
032         * The implementation of the algorithm is required.
033         */
034        REQUIRED,
035
036
037        /**
038         * The implementation of the algorithm is recommended.
039         */
040        RECOMMENDED,
041
042
043        /**
044         * The implementation of the algorithm is optional.
045         */
046        OPTIONAL
047}