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OPIEPASSWD(1)				       OPIEPASSWD(1)

NAME
       opiepasswd -  Change or set a user's password for the
       OPIE authentication system.

SYNOPSIS
       opiepasswd [-v] [-h] [-c|-d] [-f]
       [-n initial_sequence_number ] [-s seed ]	[  user_name
       ]

DESCRIPTION
       opiepasswd  will	initialize the system information to
       allow one to use	OPIE to	login.	opiepasswd is  down-
       ward  compatible	with the keyinit(1) program from the
       Bellcore	S/Key Version 1	distribution.

OPTIONS

	      -v     Display the version  number  and
	      compile-time options, then exit.

       -h     Display  a brief help message and	exit.

       -c     Set console  mode	 where	the  user  is
	      expected	to  have secure	access to the
	      system. In console mode,	you  will  be
	      asked  to	 input your password directly
	      instead of having	to use an OPIE calcu-
	      lator. If	you do not have	secure access
	      to the system (i.e., you are not on the
	      system's console), you are volunteering
	      your password  to	 attackers  by	using
	      this mode.

       -d     Disable  OTP  logins  to	the specified
	      account.

       -f     Force  opiepasswd	 to  continue,	 even
	      where  it	 normally  shouldn't. This is
	      currently	used to	force  opiepasswd  to
	      operate  in  "console"  mode  even from
	      terminals	it believes to	be  insecure.
	      It  can  also  allow  users to disclose
	      their secret pass	phrases	to attackers.
	      Use  of  the -f flag may be disabled by
	      compile-time option in your  particular
	      build of OPIE.

       -n     Manually	specify	 the initial sequence
	      number. The default is 499.

       -s     Specify a	non-random seed. The  default
	      is  to  generate	a "random" seed	using
	      the first	two characters	of  the	 host
	      name and five pseudo-random digits.

EXAMPLE
       Using opiepasswd	from the console:

       wintermute$ opiepasswd -c
       Updating	kebe:
       Reminder	 - Only	use this method	from the con-
       sole; NEVER from	remote.	If you
       are using telnet, xterm,	or a dial-in, type ^C
       now or exit with	no password.
       Then  run opiepasswd without the	-c parameter.
       Using MD5 to compute responses.
       Enter old secret	pass phrase:
       Enter new secret	pass phrase:
       Again new secret	pass phrase:

       ID kebe OPIE key	is 499 be93564
       CITE JAN	GORY BELA GET ABED
       wintermute$

       Using opiepasswd	from remote:

       wintermute$ opiepasswd
       Updating	kebe:
       Reminder: You need the response from your OPIE
       calculator.
       Old secret password:
	       otp-md5 482 wi93563
	       Response:  FIRM	BERN  THEE  DUCK MANN
       AWAY
       New secret password:
	       otp-md5 499 wi93564
	       Response: SKY FAN BUG HUFF GUS BEAT

       ID kebe OPIE key	is 499 wi93564
       SKY FAN BUG HUFF	GUS BEAT
       wintermute$

FILES
       /etc/opiekeys --	database of  key  information
       for the OPIE system.

SEE ALSO
       ftpd(8),	  login(1),    passwd(1),    opie(4),
       opiekey(1),  opieinfo(1),  su(1), opiekeys(5),
       opieaccess(5)

AUTHOR
       Bellcore's S/Key	was  written  by  Phil	Karn,
       Neil  M.	 Haller,  and John S. Walden of	Bell-
       core. 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	      January 10, 1995	       OPIEPASSWD(1)

NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLE | FILES | SEE ALSO | AUTHOR | CONTACT

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