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-.\" $Id: ssh-rand-helper.8,v 1.3 2007/01/22 01:44:53 djm Exp $
-.\"
-.\" Copyright (c) 2002 Damien Miller. 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.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
-.\"
-.Dd April 14, 2002
-.Dt SSH-RAND-HELPER 8
-.Os
-.Sh NAME
-.Nm ssh-rand-helper
-.Nd random number gatherer for OpenSSH
-.Sh SYNOPSIS
-.Nm ssh-rand-hlper
-.Op Fl vxXh
-.Op Fl b Ar bytes
-.Sh DESCRIPTION
-.Nm
-is a small helper program used by
-.Xr ssh 1 ,
-.Xr ssh-add 1 ,
-.Xr ssh-agent 1 ,
-.Xr ssh-keygen 1 ,
-.Xr ssh-keyscan 1
-and
-.Xr sshd 8
-to gather random numbers of cryptographic quality if the
-.Xr openssl 4
-library has not been configured to provide them itself.
-.Pp
-Normally
-.Nm
-will generate a strong random seed and provide it to the calling
-program via standard output. If standard output is a tty,
-.Nm
-will instead print the seed in hexidecimal format unless told otherwise.
-.Pp
-.Nm
-will by default gather random numbers from the system commands listed
-in
-.Pa /etc/ssh/ssh_prng_cmds .
-The output of each of the commands listed will be hashed and used to
-generate a random seed for the calling program.
-.Nm
-will also store seed files in
-.Pa ~/.ssh/prng_seed
-between executions.
-.Pp
-Alternately,
-.Nm
-may be configured at build time to collect random numbers from a
-EGD/PRNGd server via a unix domain or localhost tcp socket.
-.Pp
-This program is not intended to be run by the end-user, so the few
-commandline options are for debugging purposes only.
-.Bl -tag -width Ds
-.It Fl b Ar bytes
-Specify the number of random bytes to include in the output.
-.It Fl x
-Output a hexidecimal instead of a binary seed.
-.It Fl X
-Force output of a binary seed, even if standard output is a tty
-.It Fl v
-Turn on debugging message. Multiple
-.Fl v
-options will increase the debugging level.
-.It Fl h
-Display a summary of options.
-.El
-.Sh AUTHORS
-Damien Miller <djm@mindrot.org>
-.Sh SEE ALSO
-.Xr ssh 1 ,
-.Xr ssh-add 1 ,
-.Xr ssh-keygen 1 ,
-.Xr sshd 8
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