opieserv(1) [opendarwin man page]

OPIEKEY(1)						      General Commands Manual							OPIEKEY(1)

NAME

       opieserv - Example OPIE-based OTP server

SYNOPSIS

       opieserv
       [ principal ]

DESCRIPTION

       opieserv  takes an OTP principal (e.g., a user name) from either the command line or standard input and returns a current OTP challenge for
       that principal. It then reads an OTP response to that challenge from standard input and displays a message and returns a value to  indicate
       either success (exit value = 0) or failure (exit value = 1). It is intended as an example for programmers of how a simple OTP server can be
       built.

EXAMPLE

       wintermute$ opieserv kebe
       otp-md5 495 wi01309
       Response:
       User verified.
       wintermute$

SEE ALSO

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

AUTHOR

       The opieserv1) 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)

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)