/**
* 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.interfaces.RSAPrivateKey;
import org.apache.cxf.rs.security.jose.jwa.AlgorithmUtils;
import org.apache.cxf.rs.security.jose.jwa.KeyAlgorithm;
public class RSAKeyDecryptionAlgorithm extends WrappedKeyDecryptionAlgorithm {
public RSAKeyDecryptionAlgorithm(RSAPrivateKey privateKey) {
this(privateKey, KeyAlgorithm.RSA_OAEP);
}
public RSAKeyDecryptionAlgorithm(RSAPrivateKey privateKey, KeyAlgorithm supportedAlgo) {
this(privateKey, supportedAlgo, true);
}
public RSAKeyDecryptionAlgorithm(RSAPrivateKey privateKey, KeyAlgorithm supportedAlgo, boolean unwrap) {
super(privateKey, supportedAlgo, unwrap);
JweUtils.checkEncryptionKeySize(privateKey);
}
protected int getKeyCipherBlockSize() {
return ((RSAPrivateKey)getCekDecryptionKey()).getModulus().toByteArray().length;
}
@Override
protected void validateKeyEncryptionAlgorithm(String keyAlgo) {
super.validateKeyEncryptionAlgorithm(keyAlgo);
if (!AlgorithmUtils.isRsaKeyWrap(keyAlgo)) {
reportInvalidKeyAlgorithm(keyAlgo);
}
}
}