Distributed.net

distributed.net is a world-wide distributed computing effort that is attempting to solve large scale problems using otherwise idle CPU time. It started out as an effort to break RC5-56, a 56-bit encryption algorithm that had a $10,000 USD prize available to anyone who could find the key. That challenge was solved on October 19 1997 after 250 days. The next project was the RC5-64 challenge which took nearly five years to complete before the correct key was found on July 14 2002. Currently, distributed.net is working on RC5-72 (breaking RC5 with a 72-bit key), and the OGR-25 project, which is searching for 25 point optimal Golomb rulers.

Official Projects

  • Optimal Golomb Rulers (OGR-24) — Completed October 13 2004 http://n0cgi.distributed.net/cgi/dnet-finger.cgi?user=gregh
  • Optimal Golomb Rulers (OGR-25) — In progress
  • RSA Lab's 56-bit RC5 Encryption Challenge — Completed October 19 1997 (after 250 days and 47% of the key space tested).
  • RSA Lab's 64-bit RC5 Encryption Challenge — Completed July 14 2002 (after 1757 days and 83% of the key space tested).
  • RSA Lab's 72-bit RC5 Encryption Challenge — In progress
  • CS-Cipher Challenge — Completed January 16 2000 (after 60 days and 98% of the key space tested).

See also

External links

 

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