/**
* 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 java.security.spec.AlgorithmParameterSpec;
import java.util.logging.Logger;
import org.apache.cxf.common.logging.LogUtils;
import org.apache.cxf.rs.security.jose.jwa.ContentAlgorithm;
import org.apache.cxf.rt.security.crypto.CryptoUtils;
public abstract class AbstractContentEncryptionCipherProperties implements ContentEncryptionCipherProperties {
protected static final Logger LOG = LogUtils.getL7dLogger(AbstractContentEncryptionCipherProperties.class);
private static final int DEFAULT_AUTH_TAG_LENGTH = 128;
private int authTagLen = DEFAULT_AUTH_TAG_LENGTH;
private ContentAlgorithm algo;
public AbstractContentEncryptionCipherProperties(ContentAlgorithm algo) {
this.algo = algo;
}
public AlgorithmParameterSpec getAlgorithmParameterSpec(byte[] theIv) {
return CryptoUtils.getContentEncryptionCipherSpec(getAuthTagLen(), theIv);
}
public byte[] getAdditionalAuthenticationData(String headersJson, byte[] aad) {
return JweUtils.getAdditionalAuthenticationData(headersJson, aad);
}
protected int getAuthTagLen() {
return authTagLen;
}
@Override
public ContentAlgorithm getAlgorithm() {
return algo;
}
}