GNUnet

Welcome	Contact	FAQ	Download	Documentation	Papers	Links

About GNUnet

GNUnet is a framework for secure peer-to-peer networking that does not use any centralized or otherwise trusted services. A first service implemented on top of the networking layer allows anonymous censorship-resistant file-sharing. GNUnet uses a simple, excess-based economic model to allocate resources. Peers in GNUnet monitor each others behavior with respect to resource usage; peers that contribute to the network are rewarded with better service.

GNUnet is part of the GNU project. Our official GNU website can be found at http://www.gnu.org/software/GNUnet/. GNUnet can be downloaded from this site or the GNU mirrors.

News

Older news can be found here.

2004-01-31: GNUnet 0.6.1b released

Download GNUnet 0.6.1b here. The new release features:

fix of inconsistencies with updateable SBlocks
improvements in the bandwidth allocation code (higher utilization with smaller spikes)
fewer database accesses (size of the bloomfilter corrected)
fix of routing bug causing very old queries to be forwarded (saves bandwidth)
indexed content is no longer overwritten by migrated content (saves space)
fix of a rare crash due to an integer overflow (randomi)
gnunet-gtk enhancements (directory import)

You must run gnunet-check -ra to migrate from 0.6.1a (or earlier) to 0.6.1b. Running gnunet-check -ra will fix the bloomfilter size, recover the indexed content and possibly fix other problems.

2003-12-31: GNUnet 0.6.1a released

Download GNUnet 0.6.1a here. The new release features a couple of critical bug-fixes:

division by zero when a query is processed by a peer that is not connected no longer happens
resolved compile errors on certain BSD variants
more aggressive bandwidth allocation (leaves less bandwidth unused)
resolved various conditions that could stall downloads indefinitely or at least very long under certain circumstances

2003-12-23: GNUnet 0.6.1 released

After a long wait, GNUnet 0.6.1 is out at last. The new release features both a large number of bug-fixes and other enhancements that should give anyone plenty of reason to upgrade:

decrement TTLs for queries before forwarding (AFS)
faulty (local) clients can no longer dead-lock gnunetd
downloads should complete faster (but they are not fast)
clients no longer try to access the state-db in /var/lib
no more http-HELO downloads while GNUnet is still verifying HELOs from the last download
various portability problems were addressed
fixed longstanding transport bug which may have prevented new nodes from connecting the network
fixed various small namespace-related bugs
fixed MySQL from deleting lots of the blocks when the db got full
MySQL will now work with the -u option

The message assembly code now uses much less CPU time on systems with high bandwidth. Bandwidth accounting is now also entirely separate for upstream and downstream.
gnunet-gtk can now be used to start gnunetd -- and will detect if gnunetd is not running. Note that various new gnunet-gtk features can be accessed by right-clicking on search result and download lists.
A special transport was added for peers using network address translation (NAT). Note that peers that do not use NAT should still load this transport to allow peers behind a NAT to connect. The existing solutions for NAT (configure NAT-box to forward port, advertise IP of NAT box) of course still work (and are preferable).
The configuration file was split into a configuration for gnunetd and daemon related tools and another configuration for all gnunetd-clients (like gnunet-gtk). This resolves various bugs and makes it easier for different users to specify their personal options.

The release is backwards-compatible in terms of both the protocol and the database, so no worries there. The only thing that needs to be adjusted is the configuration which is now split into two files.

Finally, be advised that two new tools, gnunet-setup and gnunet-testbed, are not finished at this point and are known not to work.

2003-11-30: New GNUnet paper available

The revised GNUnet encoding paper, An Encoding for Censorship-Resistant Sharing has finally emerged. The new paper reflects the changes that were made to the GNUnet encoding since our previous paper, Efficient Sharing of Encrypted Data. So if you want to get to know more about this aspect of GNUnet, this paper will give you an up-to-date view -- and some perspectives for the future development.

Roadmap

Here is the current development plan:

fix bugs
add support for internationalization (GNU gettext)
port to OS X
port to Win32
improve handling of pseudonyms (manage reputation in namespaces)
improve URI schemes and make their use consistent and easy
add testbed harness to allow automated testing and profiling (contact)
extend GTK UI (delete, statistics, configuration, recursive insertion)
add download-daemon that manages ongoing/completed/stalled downloads

Contact

GNUnet is developed by the GNUnet developers. For questions about GNUnet send E-Mail to gnunet-developers@gnu.org.

Welcome	Contact	FAQ	Download	Documentation	Papers	Links

Copyright (C) 2002, 2003 Christian Grothoff.
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Internationalization interface (C) 2003 Christian Grothoff.	enter editor mode
PHP code is available under GPL (see GNUnet-docs CVS).