distributed.net is a loosely knit group of computer users from all of the world that is taking up challenges requiring lots of computing power (most notably the RC5, DES, and OGR cracking contests). It is simple to participate in the challenges by downloading and running their client software (which uses idle CPU time to complete its tasks).
Recent releases


Release Notes: This version fixed the bug that was causing the BeOS client to not save its work on exit. It also fixed a bug in the *nix client's -config option that would hang the client.


Release Notes: The new clients support the CS-Cypher Challenge, which is meant to demonstrate the weakness of a 56-bit key against brute-force attack.


Release Notes: Client version 2.7105 finalizes support for DES Challenge III, the third DES cracking contest that begins Monday, Jan. 18 @ 09:00 PST. The new client adds Bruce Ford's new DES MMX cores, which drastically improves DES speed on x86 MMX CPUs, as well as other overall improvements.
Recent comments
14 Jun 2001 10:18
GPL'd ANSI C Version of RC5-64
I wrote a GPL'd ANSI C implementation of RC5-64 and the
rest of the RC5 challenges. If you don't want to run the
dnet client because of security considerations, please run
the open free code.
You can download it from here:
CryptNET: FCP