1 .\" Copyright (c) 2001 Networks Associates Technology, Inc.
2 .\" All rights reserved.
3 .\" Copyright (c) 2009 Dmitry V. Levin
4 .\" All rights reserved.
5 .\" Copyright (c) 2009,2019 Solar Designer
6 .\" All rights reserved.
8 .\" Portions of this software were developed for the FreeBSD Project by
9 .\" ThinkSec AS and NAI Labs, the Security Research Division of Network
10 .\" Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
11 .\" ("CBOSS"), as part of the DARPA CHATS research program.
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14 .\" modification, are permitted provided that the following conditions
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25 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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39 .Os "Openwall Project"
42 .Nd Password quality-control PAM module
52 module is a simple password strength checking module for
54 In addition to checking regular passwords, it offers support for
55 passphrases and can provide randomly generated ones.
59 module provides functionality for only one PAM management group:
63 parameter, this is the
69 service function may ask the user for a new password, and verify that
70 it meets certain minimum standards.
71 If the chosen password is unsatisfactory, the service function returns
74 The set of options that may be passed to the module is exactly the
75 same as the set of options that may be specified in the configuration
76 file (suggested location
77 .Pa /etc/passwdqc.conf ,
78 to be specified in the
79 .Cm config=/etc/passwdqc.conf
80 option). These options are described in
87 https://www.openwall.com/passwdqc/
91 module was written for Openwall GNU/*/Linux by
92 .An Solar Designer Aq solar at openwall.com .
93 This manual page was written for the
96 ThinkSec AS and NAI Labs, the Security Research Division of Network
97 Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035
99 as part of the DARPA CHATS research program.
100 It has since been revised, most importantly to refer to
102 instead of describing the options right on this page.