--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/src/main/java/ch/ethz/ssh2/ServerHostKeyVerifier.java	Thu Dec 03 11:23:55 2015 -0800
@@ -0,0 +1,33 @@
+/*
+ * 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;
+}