blob: 0073fbca522cb256829d312878054bb66de81f9a [file] [log] [blame]
/*
* Copyright (c) 2006-2011 Christian Plattner. All rights reserved.
* Please refer to the LICENSE.txt for licensing details.
*/
package ch.ethz.ssh2;
/**
* A callback interface used to implement a client specific method of checking
* server host keys.
*
* @author Christian Plattner
* @version 2.50, 03/15/10
*/
public interface ServerHostKeyVerifier
{
/**
* The actual verifier method, it will be called by the key exchange code
* on EVERY key exchange - this can happen several times during the lifetime
* of a connection.
* <p>
* Note: SSH-2 servers are allowed to change their hostkey at ANY time.
*
* @param hostname the hostname used to create the {@link Connection} object
* @param port the remote TCP port
* @param serverHostKeyAlgorithm the public key algorithm (<code>ssh-rsa</code> or <code>ssh-dss</code>)
* @param serverHostKey the server's public key blob
* @return if the client wants to accept the server's host key - if not, the
* connection will be closed.
* @throws Exception Will be wrapped with an IOException, extended version of returning false =)
*/
public boolean verifyServerHostKey(String hostname, int port, String serverHostKeyAlgorithm, byte[] serverHostKey)
throws Exception;
}