/**
* 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.ECPrivateKey;
import org.apache.cxf.rs.security.jose.jwa.AlgorithmUtils;
import org.apache.cxf.rs.security.jose.jwa.KeyAlgorithm;
public class EcdhAesWrapKeyDecryptionAlgorithm implements KeyDecryptionProvider {
private ECPrivateKey key;
private KeyAlgorithm algo;
public EcdhAesWrapKeyDecryptionAlgorithm(ECPrivateKey key) {
this(key, KeyAlgorithm.ECDH_ES_A128KW);
}
public EcdhAesWrapKeyDecryptionAlgorithm(ECPrivateKey key, KeyAlgorithm algo) {
this.key = key;
this.algo = algo;
}
@Override
public byte[] getDecryptedContentEncryptionKey(JweDecryptionInput jweDecryptionInput) {
byte[] derivedKey =
EcdhDirectKeyJweDecryption.getDecryptedContentEncryptionKeyFromHeaders(
jweDecryptionInput.getJweHeaders(), key);
KeyDecryptionProvider aesWrap = new AesWrapKeyDecryptionAlgorithm(derivedKey) {
protected boolean isValidAlgorithmFamily(String wrapAlgo) {
return AlgorithmUtils.isEcdhEsWrap(wrapAlgo);
}
};
return aesWrap.getDecryptedContentEncryptionKey(jweDecryptionInput);
}
@Override
public KeyAlgorithm getAlgorithm() {
return algo;
}
}