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.\" Copyright (c) 1988, 1993
.\" The Regents of the University of California. All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by the University of
.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\" from @(#)make_keypair.8 8.2 (Berkeley) 12/11/93
.\" $OpenBSD: make_keypair.8,v 1.2 1997/05/30 03:11:33 gene Exp $
.\"
.Dd December 11, 1993
.Dt MAKE_KEYPAIR 8
.Os
.Sh NAME
.Nm make_keypair
.Nd generate Kerberos host key pair
.Sh SYNOPSIS
.Nm make_keypair
.Ar hostname
.Op Ar hostname ...
.Sh DESCRIPTION
The
.Nm make_keypair
command
is used to create pairs of
.Tn DES
keys for
each
.Ar hostname .
The keys are used by privileged programs such as
.Xr register 1
to make remote updates to the Kerberos database without
having to have first acquired a Kerberos ticket granting ticket
.Pq Tn TGT .
The keys created by
.Nm make_keypair
are placed (by hand) in the filesystems of the
kerberos server in
.Pa /etc/kerberosIV/register_keys ,
and in the root directory of the clients.
For example, the file
.Pa /.update.key128.32.130.3
would
contain a copy of the key of the client with
IP address 128.32.130.3.
These keys provide a shared secret which may be used to establish
a secure channel between the client hosts and the Kerberos server.
.Sh FILES
.Bl -tag -width /etc/kerberosIV/register_keysxx -compact
.It Pa /.update.keyxx.xx.xx.xx
shared
.Tn DES
key with server
.It Pa /etc/kerberosIV/register_keys
server's key storage directory
.El
.Sh SEE ALSO
.Xr register 1 ,
.Xr registerd 8 ,
.Xr kerberos 1
.Sh HISTORY
The
.Nm make_keypair
utility first appeared in 4.4BSD.
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