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}