digest_file_auth - File based digest authentication helper for Squid.
is an installed binary authentication program for Squid.
It handles digest authentication protocol and authenticates against a text
file backend. This program will automatically detect the existence of a
concurrecy channel-ID and adjust appropriately. It may be used with any value
0 or above for the auth_param children concurrency= parameter.
- Accept digest hashed passwords rather than plaintext in the
Username database file format:
- - comment lines are possible and should start with a
- - empty or blank lines are possible;
- - plaintext entry format is username:password
- - HA1 entry format is username:realm:HA1
To build a directory integrated backend, you need to be able to calculate the
HA1 returned to squid. To avoid storing a plaintext password you can calculate
when the user changes their password, and
store the tuple username:realm:HA1.
then find the matching
when squid asks for the HA1.
This implementation could be improved by using such a triple for the file
format. However storing such a triple does little to improve security: If
compromised the username:realm:HA1
combination is "plaintext
equivalent" - for the purposes of digest authentication they allow the
user access. Password syncronisation is not tackled by digest - just
preventing on the wire compromise.
This program was written by Robert Collins
Based on prior work by Arjan de Vet <Arjan.deVet@adv.iae.nl>
This manual was written by Robert Collins <firstname.lastname@example.org>
Amos Jeffries <email@example.com>
* Copyright (C) 1996-2016 The Squid Software Foundation and contributors
* Squid software is distributed under GPLv2+ license and includes
* contributions from numerous individuals and organizations.
* Please see the COPYING and CONTRIBUTORS files for details.
This program and documentation is copyright to the authors named above.
Distributed under the GNU General Public License (GNU GPL) version 2 or later
Questions on the usage of this program can be sent to the Squid Users mailing
Bug reports need to be made in English. See
http://wiki.squid-cache.org/SquidFaq/BugReporting for details of what you need
to include with your bug report.
Report bugs or bug fixes using http://bugs.squid-cache.org/
Report serious security bugs to Squid Bugs
Report ideas for new improvements to the Squid Developers mailing list
The Squid FAQ wiki http://wiki.squid-cache.org/SquidFaq
The Squid Configuration Manual http://www.squid-cache.org/Doc/config/