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.impl;
019
020
021import java.util.Collections;
022import java.util.LinkedHashSet;
023import java.util.Set;
024
025import com.nimbusds.jose.JWSAlgorithm;
026
027
028/**
029 * The base abstract class for RSA signers and verifiers of {@link
030 * com.nimbusds.jose.JWSObject JWS objects}.
031 *
032 * <p>Supports the following algorithms:
033 *
034 * <ul>
035 *     <li>{@link com.nimbusds.jose.JWSAlgorithm#RS256}
036 *     <li>{@link com.nimbusds.jose.JWSAlgorithm#RS384}
037 *     <li>{@link com.nimbusds.jose.JWSAlgorithm#RS512}
038 *     <li>{@link com.nimbusds.jose.JWSAlgorithm#PS256}
039 *     <li>{@link com.nimbusds.jose.JWSAlgorithm#PS384}
040 *     <li>{@link com.nimbusds.jose.JWSAlgorithm#PS512}
041 * </ul>
042 * 
043 * @author Vladimir Dzhuvinov
044 * @version 2015-05-31
045 */
046public abstract class RSASSAProvider extends BaseJWSProvider {
047
048
049        /**
050         * The supported JWS algorithms by the RSA-SSA provider class.
051         */
052        public static final Set<JWSAlgorithm> SUPPORTED_ALGORITHMS;
053
054
055        static {
056                Set<JWSAlgorithm> algs = new LinkedHashSet<>();
057                algs.add(JWSAlgorithm.RS256);
058                algs.add(JWSAlgorithm.RS384);
059                algs.add(JWSAlgorithm.RS512);
060                algs.add(JWSAlgorithm.PS256);
061                algs.add(JWSAlgorithm.PS384);
062                algs.add(JWSAlgorithm.PS512);
063                SUPPORTED_ALGORITHMS = Collections.unmodifiableSet(algs);
064        }
065
066
067        /**
068         * Creates a new RSASSA provider.
069         */
070        protected RSASSAProvider() {
071
072                super(SUPPORTED_ALGORITHMS);
073        }
074}
075