PASSWD(1) PASSWD(1)
NAME
passwd, typepasswd, netkey - change login password
SYNOPSIS
passwd
aux/typepasswd
aux/netkey
DESCRIPTION
Passwd changes your Plan 9 password. The program prompts
for the old password and then for the new one. The caller
must supply both. The new password must be typed twice, to
forestall mistakes. New passwords must be at least five
characters long and be sufficiently hard to guess; passwords
are not limited to eight characters. If the command is suc-
cessful, the key in the encryption device is changed. Since
each name space group has a separate encryption device, keys
in other name space groups are not updated. For example,
other windows will not have the new password. To correct
the problem, reboot or run typepasswd in the other windows.
Typepasswd changes the key in the user's encryption device
without changing the Plan 9 password.
Netkey uses the password to encrypt network challenges. It
is a substitute for a SecureNet box.
These commands should be run only on a terminal; otherwise
the password will be transmitted over a network in clear
text.
FILES
/dev/key
SEE ALSO
encrypt(2), cons(3), securenet(8)
Robert Morris and Ken Thompson, `UNIX password security,'
AT&T Bell Laboratories Technical Journal 63 (1984) 1649-1672
Page 1 Plan 9 (printed 12/30/24)