SYNOPSISdigest_file_auth [-c] file
DESCRIPTIONdigest_file_auth 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 password file
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 MD5(username:realm:password) when the user changes their password, and store the tuple username:realm:HA1. then find the matching username:realm 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.
AUTHORThis program was written by Robert Collins <[email protected]>
* 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 (GPLv2+).
QUESTIONSQuestions on the usage of this program can be sent to the Squid Users mailing list <[email protected]>
REPORTING BUGSBug 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 <[email protected]>
Report ideas for new improvements to the Squid Developers mailing list <[email protected]>