diff --git a/auth-options.c b/auth-options.c
index 55ccc85..da69652 100644
--- a/auth-options.c
+++ b/auth-options.c
@@ -1,5 +1,20 @@
+/*
+ * Author: Tatu Ylonen <ylo@cs.hut.fi>
+ * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
+ *                    All rights reserved
+ * RSA-based authentication.  This code determines whether to admit a login
+ * based on RSA authentication.  This file also contains functions to check
+ * validity of the host key.
+ *
+ * As far as I am concerned, the code I have written for this software
+ * can be used freely for any purpose.  Any derived versions of this
+ * software must be clearly marked as such, and if the derived work is
+ * incompatible with the protocol description in the RFC file, it must be
+ * called by a name other than "ssh" or "Secure Shell".
+ */
+
 #include "includes.h"
-RCSID("$OpenBSD: auth-options.c,v 1.2 2000/06/20 01:39:38 markus Exp $");
+RCSID("$OpenBSD: auth-options.c,v 1.4 2000/09/07 21:13:36 markus Exp $");
 
 #include "ssh.h"
 #include "packet.h"