tor/contrib/auto-naming

=== AUTONAMING FOR TOR ===

Tor directory authorities may maintain a binding of server identities
(their long term identity key) and nicknames.  In their status documents
they may for each router they know tell if this is indeed the owner of
that nickname or not.

This toolset allows automatic maintaining of a binding list of nicknames
to identity keys, implementing Tor proposal 123[1].

The rules are simple:
 - A router claiming to be Bob becomes named (i.e. added to the binding list)
   if there currently does not exist a different binding for that
   nickname, the router has been around for a bit (2 weeks), and no other
   router has used that nickname in a while (1 month).
 - A binding is removed if the server that owns it has not been seen
   in a long time (6 months).


=== REQUIREMENTS ===

 * ruby, and its postgres DBI interface (Debian packages: ruby, ruby1.8, libdbi-ruby1.8, libdbd-pg-ruby1.8)
 * postgres (tested with >= 8.1)
 * cron

=== SETUP ===

 * copy this tree some place, like into a 'auto-naming' directory in your Tor's
   data directory
 * create a database and a user, modifying db-config.rb accordingly
 * initialize the database by executing the sql statements in create-db.sql
 * setup a cronjob that feeds the current consensus to the process-consensus
   script regularly.
 * once the database is sufficiently populated, maybe a month or so after the
   previous step, setup a cronjob to regularly build the binding list using
   the build-approved-routers script.  You probably want to append a manually
   managed list of rejections to that file and give it to tor as its
   "approved-routers" file.
   The Sample-Makefile and Sample-crontab demonstrate the method used at tor26.


1. https://tor-svn.freehaven.net/svn/tor/trunk/doc/spec/proposals/123-autonaming.txt




Copyright (c) 2007 Peter Palfrader

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.