org.keycloak.jose.jwe.JWERegistry Maven / Gradle / Ivy
/*
* Copyright 2017 Red Hat, Inc. and/or its affiliates
* and other contributors as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.keycloak.jose.jwe;
import java.util.HashMap;
import java.util.Map;
import org.keycloak.jose.jwe.alg.AesKeyWrapAlgorithmProvider;
import org.keycloak.jose.jwe.alg.DirectAlgorithmProvider;
import org.keycloak.jose.jwe.alg.JWEAlgorithmProvider;
import org.keycloak.jose.jwe.enc.AesCbcHmacShaEncryptionProvider;
import org.keycloak.jose.jwe.enc.JWEEncryptionProvider;
/**
*
* @author Marek Posolda
*/
class JWERegistry {
// https://tools.ietf.org/html/rfc7518#page-12
// Registry not pluggable for now. Just supported algorithms included
private static final Map ENC_PROVIDERS = new HashMap<>();
// https://tools.ietf.org/html/rfc7518#page-22
// Registry not pluggable for now. Just supported algorithms included
private static final Map ALG_PROVIDERS = new HashMap<>();
static {
// Provider 'dir' just directly uses encryption keys for encrypt/decrypt content.
ALG_PROVIDERS.put(JWEConstants.DIR, new DirectAlgorithmProvider());
ALG_PROVIDERS.put(JWEConstants.A128KW, new AesKeyWrapAlgorithmProvider());
ENC_PROVIDERS.put(JWEConstants.A128CBC_HS256, new AesCbcHmacShaEncryptionProvider.Aes128CbcHmacSha256Provider());
ENC_PROVIDERS.put(JWEConstants.A192CBC_HS384, new AesCbcHmacShaEncryptionProvider.Aes192CbcHmacSha384Provider());
ENC_PROVIDERS.put(JWEConstants.A256CBC_HS512, new AesCbcHmacShaEncryptionProvider.Aes256CbcHmacSha512Provider());
}
static JWEAlgorithmProvider getAlgProvider(String alg) {
return ALG_PROVIDERS.get(alg);
}
static JWEEncryptionProvider getEncProvider(String enc) {
return ENC_PROVIDERS.get(enc);
}
}