/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.cxf.rs.security.jose.jwe;
import org.apache.cxf.rs.security.jose.jwa.AlgorithmUtils;
import org.apache.cxf.rs.security.jose.jwa.ContentAlgorithm;
public class AesGcmContentDecryptionAlgorithm extends AbstractContentEncryptionCipherProperties
implements ContentDecryptionProvider {
public AesGcmContentDecryptionAlgorithm(ContentAlgorithm supportedAlgo) {
super(supportedAlgo);
}
@Override
public byte[] getEncryptedSequence(JweHeaders headers, byte[] cipher, byte[] authTag) {
String algo = headers.getContentEncryptionAlgorithm().getJwaName();
if (!AlgorithmUtils.isAesGcm(algo) || !getAlgorithm().getJwaName().equals(algo)) {
LOG.warning("Invalid content encryption algorithm");
throw new JweException(JweException.Error.INVALID_CONTENT_ALGORITHM);
}
return JweCompactConsumer.getCipherWithAuthTag(cipher, authTag);
}
}