/*
* 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.sshd.client.keyverifier;
import java.net.SocketAddress;
import java.security.PublicKey;
import org.apache.sshd.ClientSession;
import org.apache.sshd.client.ServerKeyVerifier;
import org.apache.sshd.common.util.BufferUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* A ServerKeyVerifier that accepts one server key (specified in the constructor)
*
* @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
*/
public class RequiredServerKeyVerifier
implements ServerKeyVerifier
{
protected final Logger log = LoggerFactory.
getLogger(getClass
());
final PublicKey requiredKey
;
public RequiredServerKeyVerifier
(PublicKey requiredKey
) {
super();
this.
requiredKey = requiredKey
;
}
public boolean verifyServerKey
(ClientSession sshClientSession,
SocketAddress remoteAddress,
PublicKey serverKey
) {
if (requiredKey.
equals(serverKey
)) {
log.
debug("Server at {} presented expected key: {}", remoteAddress, BufferUtils.
printHex(serverKey.
getEncoded()));
return true;
} else {
log.
error("Server at {} presented wrong key: {}", remoteAddress, BufferUtils.
printHex(serverKey.
getEncoded()));
return false;
}
}
}