MKPASSWD(1) Debian GNU/Linux MKPASSWD(1)
NAME
mkpasswd - Overfeatured front end to crypt(3)
SYNOPSIS
mkpasswd PASSWORD [SALT]
DESCRIPTION
mkpasswd encrypts the given password with the crypt(3) libc function,
using the given salt.
OPTIONS
-S STRING, --salt=STRING
Use the STRING as salt. If it begins with $ then it will be
passed straight to crypt(3) without any checks.
-R NUMBER, --rounds=NUMBER
Use NUMBER rounds. This argument is ignored if the method chosen
does not support variable rounds. For the OpenBSD Blowfish
method this is the logarithm of the number of rounds. The behav-
ior is undefined if this option is used without --method.
-m TYPE, --method=TYPE
Compute the password using the TYPE method. If TYPE is help then
the list of available methods is printed. If TYPE begins and end
with $ characters then the string is passed to crypt_gensalt(3)
as-is.
-5 Like --method=md5crypt.
-P NUM, --password-fd=NUM
Read the password from file descriptor NUM instead of using get-
pass(3). If the file descriptor is not connected to a tty then
no other text than the hashed password is printed on stdout.
-s, --stdin
Like --password-fd=0.
ENVIRONMENT
MKPASSWD_OPTIONS
A list of options which will be evaluated before the ones speci-
fied on the command line.
BUGS
If the --stdin option is used then passwords containing some control
characters may not be read correctly.
This program suffers of a bad case of featuritis.
SEE ALSO
passwd(1), passwd(5), crypt(3), crypt(5), crypt_gensalt(3), getpass(3).
AUTHOR
mkpasswd and this man page were written by Marco d'Itri <md@linux.it>
and are licensed under the terms of the GNU General Public License, ver-
sion 2 or later.
Marco d'Itri 2019-12-30 MKPASSWD(1)
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