ElytronRsaKeyEncryption256JWEAlgorithmProvider.java
/*
* 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.crypto.elytron;
import java.security.AlgorithmParameters;
import java.security.Key;
import java.security.spec.AlgorithmParameterSpec;
import java.security.spec.MGF1ParameterSpec;
import javax.crypto.Cipher;
import javax.crypto.spec.OAEPParameterSpec;
import javax.crypto.spec.PSource;
/**
* @author <a href="mailto:david.anderson@redhat.com">David Anderson</a>
*/
public class ElytronRsaKeyEncryption256JWEAlgorithmProvider extends ElytronRsaKeyEncryptionJWEAlgorithmProvider {
public ElytronRsaKeyEncryption256JWEAlgorithmProvider(String jcaAlgorithmName) {
super(jcaAlgorithmName);
}
@Override
protected void initCipher(Cipher cipher, int mode, Key key) throws Exception {
AlgorithmParameters algp = AlgorithmParameters.getInstance("OAEP");
AlgorithmParameterSpec paramSpec = new OAEPParameterSpec("SHA-256", "MGF1", MGF1ParameterSpec.SHA256,
PSource.PSpecified.DEFAULT);
algp.init(paramSpec);
cipher.init(mode, key, algp);
}
}