001/*
002 * nimbus-jose-jwt
003 *
004 * Copyright 2012-2016, Connect2id Ltd and contributors.
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.crypto.opts;
019
020
021import net.jcip.annotations.Immutable;
022
023import com.nimbusds.jose.JWSSignerOption;
024
025
026/**
027 * JSON Web Signature (JWS) option to allow weak RSA keys that are shorter than
028 * {@link com.nimbusds.jose.jwk.gen.RSAKeyGenerator#MIN_KEY_SIZE_BITS 2048
029 * bits}.
030 */
031@Immutable
032public final class AllowWeakRSAKey implements JWSSignerOption {
033        
034        
035        private static final AllowWeakRSAKey SINGLETON = new AllowWeakRSAKey();
036        
037        
038        /**
039         * Returns an instance of this class.
040         *
041         * @return The instance.
042         */
043        public static AllowWeakRSAKey getInstance() {
044                return SINGLETON;
045        }
046        
047        
048        private AllowWeakRSAKey() {
049        }
050        
051        
052        @Override
053        public String toString() {
054                return "AllowWeakRSAKey";
055        }
056}