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.EncryptionMethod; 026import com.nimbusds.jose.JWEAlgorithm; 027 028 029/** 030 * The base abstract class for RSA encrypters and decrypters of 031 * {@link com.nimbusds.jose.JWEObject JWE objects}. 032 * 033 * <p>Supports the following key management algorithms: 034 * 035 * <ul> 036 * <li>{@link com.nimbusds.jose.JWEAlgorithm#RSA1_5} 037 * <li>{@link com.nimbusds.jose.JWEAlgorithm#RSA_OAEP} 038 * <li>{@link com.nimbusds.jose.JWEAlgorithm#RSA_OAEP_256} 039 * </ul> 040 * 041 * <p>Supports the following content encryption algorithms: 042 * 043 * <ul> 044 * <li>{@link com.nimbusds.jose.EncryptionMethod#A128CBC_HS256} 045 * <li>{@link com.nimbusds.jose.EncryptionMethod#A192CBC_HS384} 046 * <li>{@link com.nimbusds.jose.EncryptionMethod#A256CBC_HS512} 047 * <li>{@link com.nimbusds.jose.EncryptionMethod#A128GCM} 048 * <li>{@link com.nimbusds.jose.EncryptionMethod#A192GCM} 049 * <li>{@link com.nimbusds.jose.EncryptionMethod#A256GCM} 050 * <li>{@link com.nimbusds.jose.EncryptionMethod#A128CBC_HS256_DEPRECATED} 051 * <li>{@link com.nimbusds.jose.EncryptionMethod#A256CBC_HS512_DEPRECATED} 052 * <li>{@link com.nimbusds.jose.EncryptionMethod#XC20P} 053 * </ul> 054 * 055 * @author David Ortiz 056 * @author Vladimir Dzhuvinov 057 * @version 2021-09-23 058 */ 059public abstract class RSACryptoProvider extends BaseJWEProvider { 060 061 062 /** 063 * The supported JWE algorithms by the RSA crypto provider class. 064 */ 065 public static final Set<JWEAlgorithm> SUPPORTED_ALGORITHMS; 066 067 068 /** 069 * The supported encryption methods by the RSA crypto provider class. 070 */ 071 public static final Set<EncryptionMethod> SUPPORTED_ENCRYPTION_METHODS = ContentCryptoProvider.SUPPORTED_ENCRYPTION_METHODS; 072 073 074 static { 075 Set<JWEAlgorithm> algs = new LinkedHashSet<>(); 076 algs.add(JWEAlgorithm.RSA1_5); 077 algs.add(JWEAlgorithm.RSA_OAEP); 078 algs.add(JWEAlgorithm.RSA_OAEP_256); 079 algs.add(JWEAlgorithm.RSA_OAEP_384); 080 algs.add(JWEAlgorithm.RSA_OAEP_512); 081 SUPPORTED_ALGORITHMS = Collections.unmodifiableSet(algs); 082 } 083 084 085 /** 086 * Creates a new RSA encryption / decryption provider. 087 */ 088 protected RSACryptoProvider() { 089 090 super(SUPPORTED_ALGORITHMS, ContentCryptoProvider.SUPPORTED_ENCRYPTION_METHODS); 091 } 092}