opendarwin man page for opiegen

OPIEKEY(1)						      General Commands Manual							OPIEKEY(1)

NAME
       opiegen - Example OPIE-based OTP generator

SYNOPSIS
       opiegen
       [ challenge ]

DESCRIPTION
       opiegen	takes  a  properly  formed  OTP  challenge either from the command line or from standard input, prompts the user for a secret pass
       phrase, and generates an OTP response to that challenge. It is intended as an example for programmers of how a simple OTP generator can	be
       built. Users should probably use the opiekey program instead.

EXAMPLE
       wintermute$ opiegen otp-md5 495 wi01309
       Secret Pass Phrase:
       GILL HUED GOES CHUM LIEU VAIN
       wintermute$

BUGS
       opiegen(1)  can lull a user into revealing his/her password when remotely logged in, thus defeating the purpose of OPIE. This is especially
       a problem with xterm.  opiegen(1) implements simple checks to reduce the risk of a user making this mistake. Better checks are needed.

SEE ALSO
       opiekey(1), opieserv(1), opie(4), opiepasswd(1), opieinfo(1), opiesu(1), opielogin(1), opieftpd(8), opiekeys(5), opieaccess(5)

AUTHOR
       The opiegen(1) program was created by Craig Metz for OPIE 2.2.

       Bellcore's S/Key was written by Phil Karn, Neil M. Haller, and John S. Walden of Bellcore. OPIE was created at NRL by Randall Atkinson, Dan
       McDonald, and Craig Metz.

       S/Key is a trademark of Bell Communications Research (Bellcore).

CONTACT
       OPIE is discussed on the Bellcore "S/Key Users" mailing list. To join, send an email request to:

       skey-users-request@thumper.bellcore.com

7th Edition							 February 20, 1996							OPIEKEY(1)