| /** |
| * 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.wss4j.common.kerberos; |
| |
| import javax.security.auth.Subject; |
| |
| /** |
| * This interface defines a pluggable way to obtain a session key given an AP-REQ Kerberos token and a |
| * Subject. The session key is needed on the receiving side when it is used for message signature or |
| * encryption. A default implementation is not shipped with WSS4J due to a dependency on internal APIs |
| * or ASN1 parsers. |
| */ |
| public interface KerberosTokenDecoder { |
| |
| /** |
| * Set the AP-REQ Kerberos Token |
| * @param token the AP-REQ Kerberos Token |
| */ |
| void setToken(byte[] token); |
| |
| /** |
| * Set the Subject |
| * @param subject the Subject |
| */ |
| void setSubject(Subject subject); |
| |
| /** |
| * Get the session key from the token |
| * @return the session key from the token |
| */ |
| byte[] getSessionKey() throws KerberosTokenDecoderException; |
| |
| /** |
| * Clear all internal information |
| */ |
| void clear(); |
| |
| } |