plan9 man page for passwd

PASSWD(1)						      General Commands Manual							 PASSWD(1)

NAME
       passwd, netkey - change user password

SYNOPSIS
       passwd

       netkey

DESCRIPTION
       Passwd changes the invoker's Plan 9 password.  The program prompts for the old password and then for the new one.  The new password must be
       typed twice, to forestall mistakes.  New passwords must be sufficiently hard to guess.  They may of any length greater than  seven  charac-
       ters.

       Netkey uses the password to encrypt network challenges.	It is a substitute for a SecureNet box.

       These commands may be run only on a terminal, to avoid transmitting clear text passwords over the network.

FILES
       /dev/key

SOURCE
       /sys/src/cmd/auth/passwd.c
       /sys/src/cmd/auth/netkey.c

SEE ALSO
       encrypt(2), cons(3), securenet(8)

       Robert Morris and Ken Thompson, ``UNIX Password Security,'' AT&T Bell Laboratories Technical Journal Vol 63 (1984), pp. 1649-1672

																	 PASSWD(1)