1997-02-06 17:52:29 +00:00
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.\" opiegen.1: Manual page for the opiegen(1) program.
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.\"
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1997-09-29 08:53:38 +00:00
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.\" %%% portions-copyright-cmetz-96
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2000-04-10 11:09:42 +00:00
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.\" Portions of this software are Copyright 1996-1998 by Craig Metz, All Rights
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1997-02-06 17:52:29 +00:00
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.\" Reserved. The Inner Net License Version 2 applies to these portions of
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.\" the software.
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.\" You should have received a copy of the license with this software. If
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.\" you didn't get a copy, you may request one from <license@inner.net>.
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.\"
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.\" Portions of this software are Copyright 1995 by Randall Atkinson and Dan
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.\" McDonald, All Rights Reserved. All Rights under this copyright are assigned
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.\" to the U.S. Naval Research Laboratory (NRL). The NRL Copyright Notice and
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.\" License Agreement applies to this software.
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.\"
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.\" History:
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.\"
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.\" Created by cmetz for OPIE 2.2 from opiekey.1.
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.\"
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.ll 6i
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.pl 10.5i
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.lt 6.0i
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.TH OPIEKEY 1 "February 20, 1996"
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.AT 3
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.SH NAME
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opiegen \- Example OPIE-based OTP generator
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.SH SYNOPSIS
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.B opiegen
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.sp 0
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[
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.I challenge
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]
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.sp 0
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.SH DESCRIPTION
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.I opiegen
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takes a properly formed OTP challenge either from the command line or from
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standard input, prompts the user for a secret pass phrase, and generates an
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OTP response to that challenge. It is intended as an example for programmers
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of how a simple OTP generator can be built. Users should probably use the
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.I opiekey
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program instead.
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.SH EXAMPLE
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.sp 0
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wintermute$ opiegen otp-md5 495 wi01309
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.sp 0
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Secret Pass Phrase:
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.sp 0
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GILL HUED GOES CHUM LIEU VAIN
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.sp 0
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wintermute$
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.LP
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.SH BUGS
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.BR opiegen(1)
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can lull a user into revealing his/her password when remotely logged in, thus
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defeating the purpose of OPIE. This is especially a problem with xterm.
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.BR opiegen(1) implements simple checks to reduce the risk of a user making
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this mistake. Better checks are needed.
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.LP
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.SH SEE ALSO
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.BR opiekey (1),
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.BR opieserv (1),
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.BR opie (4),
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.BR opiepasswd (1),
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.BR opieinfo (1),
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.BR opiesu (1),
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.BR opielogin (1),
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.BR opieftpd (8),
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.BR opiekeys (5),
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.BR opieaccess (5)
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.SH AUTHOR
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The opiegen(1) program was created by Craig Metz for OPIE 2.2.
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Bellcore's S/Key was written by Phil Karn, Neil M. Haller, and John S. Walden
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of Bellcore. OPIE was created at NRL by Randall Atkinson, Dan McDonald, and
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Craig Metz.
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S/Key is a trademark of Bell Communications Research (Bellcore).
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.SH CONTACT
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OPIE is discussed on the Bellcore "S/Key Users" mailing list. To join,
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send an email request to:
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.sp
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skey-users-request@thumper.bellcore.com
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