2 Copyright 2003-2008 Project Purple. Written by Jonathan McDowell
3 http://www.earth.li/projectpurple/progs/onak.html
8 onak is an OpenPGP compatible keyserver. It's primary purpose is the
9 storage and retrieval of OpenPGP keys but it also has features that make
10 use of the stored keys for various other purposes. The most useful of
11 these is probably the pathfinder. This takes two keys, a & b, and
12 attempts to find a path of trust from a to b in the key database. I
13 started work on it because at the time there was no DFSG compliant
14 server that supported multiple subkeys and could act as a drop in
15 replacement for pksd, which I was running at the time.
20 onak has been mainly developed under Linux with a bit of work on FreeBSD
21 at times also. It should run on all architectures, but has only been
22 tested on i386, AMD64 and PowerPC so far.
24 Typing "./configure && make" should produce a version of onak with
25 support for the DB4 backend. If you want to choose a different backend
26 (see below for a discussion about the options) you'll need to pass the
27 appropriate option to ./configure.
29 Once make has completed you'll end up with various binaries:
32 This is the main program. It's intended to be run from the command
33 line and allows the addition, deletion and searching of keys in the
37 The mail processor. Takes incoming mail (usually to
38 pgp-public-keys@host) and calls onak to do the necessary work.
39 Currently only supports INCREMENTAL mails for syncing with other
40 keyservers and INDEX mails from users.
42 * add, lookup & gpgwww
43 The CGI programs. add & lookup are common to all PGP keyservers while
44 gpgwww is the pathfinder component of onak. To get a keyserver that
45 clients such as GPG can sync with you'll need to put these in a /pks
46 directory on a web server running on port 11371. There's an example
47 mathopd.conf file provided that I used for testing, but I'm now using
48 Apache for the public test rig as it's already present on the host
52 Utility to take a keyring and split it up into a bunch of smaller ones.
57 I've finally added config file support. onak.conf is an example config;
58 the main thing to change is the db_dir to whereever you want to put your
59 database files. The configure script allows you to specific where it
60 should live; by default it'll be PREFIX/etc/onak.conf.
65 Currently there is support for 5 different database backends:
68 The original backend. Very simple and ideal for testing. Stores each
69 key as a separate file. Doesn't support searching based on key text.
72 Once the preferred backend. Use onak.sql to create the tables
73 necessary to run with this. Unfortunately although suitable for the
74 keyserver side it was found to be too slow for running the pathfinder
75 with a large number of keys. This may well be due to my use of it - if
76 you can help speed it up info would be appreciated.
78 * db2 (Berkeley libdb2)
79 Only added to provide the ability to run the pathfinder with a key
80 database produced by pksd. Currently only supports pulling keys out by
81 keyid - no key updating or searching by key test. Found to be
82 tempramental and prone to deadlock in the db2 library.
84 * db4 (Berkeley libdb4)
85 The currently preferred backend. Supports the full range of functions
86 like the pg backend but is considerably faster. Also easier to setup
87 assuming you have libdb4 installed; there's no need to have an SQL
88 database running and configured.
91 A fuller featured file based backend. Doesn't need any external
92 libraries and supports the full range of operations (such as text and
93 subkey searching). Needs a good filesystem to get good performance
94 though as it creates many, many files and links.
99 I'm aware of the following other keyservers. If you know of any more
100 please let me know and I'll add them.
103 http://sf.net/projects/pks/
104 The prodominant keyserver I believe; what I used to run on
105 wwwkeys.uk.pgp.net. Had a spurt of activity a year or two ago, but
106 seems to have died off again. The main issue with pks is that it lacks
107 support for keys with multiple subkeys bound to them and older
108 versions unfortunately mangle them.
111 http://www.cryptnet.net/fsp/cks/
112 A GPLed server with support for multiple subkeys, but unfortunately
113 when I looked at it there was no support for syncing via email which
114 means it can't replace a pks server to act as part of pgp.net.
118 Don't really know a lot about this. Primarily Japanese development
122 http://sks.sourceforge.net/
123 A reasonably new keyserver concentrating more on the whole issue of
124 syncronization between keyservers. Seems to be gaining in popularity.
127 Contacting the author:
129 I can be reached via email as noodles@earth.li. I'm usually on IRC on
130 OFTC (irc.oftc.net) as Noodles.
132 All constructive criticism, bugs reports, patches and ideas are welcome.
135 Obtaining later versions:
139 http://www.earth.li/projectpurple/progs/onak.html
141 Development is carried out using arch; you can access the repository
144 tla register-archive noodles@earth.li--2004-laptop \
145 http://www.earth.li/~noodles/arch/
146 tla get -A noodles@earth.li--2004-laptop onak--mainline--0.3
151 onak is distributed under the GNU Public License, a copy of which should
152 have been provided with this archive as LICENSE.