DES challenge

[Harris Kosmidhs]

Deite kai to parakato :(

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# Kosmidhs Harris           				  #
# hkosmidi at aix.meng.auth.gr 				  # 
#			    				  #
# What are we going to do tonight Bill?		    	  #
# Everything we do every night..try to make a better OS.  #
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Subject: 
          [DES-ANNOUNCE] The DES Challenge is solved
    Date: 
          Thu, 19 Jun 1997 16:23:58 +0200
    From: 
          Lindgren Fredrik <fli at solnet.sollentuna.se>
Reply-To: 
          des at des.sollentuna.se
      To: 
          "'des-list at lists.des.sollentuna.se'"
<des-list at towerguard.unix.edu.sollentuna.se>,
          "'des-announce at lists.des.sollentuna.se'"
<des-announce at towerguard.unix.edu.sollentuna.se>,
          "'des-hack at lists.des.sollentuna.se'"
<des-hack at towerguard.unix.edu.sollentuna.se>


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The challenge is over...

...and we "lost". On June 17 around midnight one of our
competitors, DESCHALL, found the secret key and decrypted 
the secret text prepared by RSA Data Security Inc 
(http://www.rsa.com).

The goal of the DES Challenge was to show that DES encryption
could be cracked, and that better encryption is needed to keep
data safe. In my opinion this goal has been accomplished.

Although it's not that fun being a runner up, I must say that it
has been an enjoyable couple of months running this effort. 
As much as it been a goal to show the weaknesses of 56bit 
crypto, it's been very nice to be able to show the enormous 
amount of "surplus" computing power that is available on the 
Internet. Not to mention the warm and fuzzy feeling it gives me 
to think of everybody that's been working together towards the 
common goal of answering the challenge.

The SolNET DES Team would like to thank everybody who has 
been participating and sharing their spare computing resources 
in our project. Without you none of this would have been
possible.

Special thanks goes out to:

Felix Rauch who helped us get the clients to Sun and SGI
platforms.
Paul Foley and Pierce T Wetter for sharing their DES algorithms
with us in the startup phase.
Martijn Kruiswijk for spending countless hours working on the
clients.
Svend Olaf Mikkelsen who made his BrydDES library available for
inclusion into the SolNET clients.
Solar Designer and Thomas Koenig for supplying patches to the
clients.
Germano Caronni and Kevin Manderson for providing invaluable
feedback.

Also, thanks to National Chiao Tong University - Taiwan, 
Centre for Earth Observation - Joint Research Centre - Italy and
AudioSports.net - West Palm Beach - Florida which have been
running keyserver for us.

I probably forgot someone, and I'm sorry if I did. There have
been many contributors and we are very grateful towards all 
of them! Thanks!

Thanks also has to go to the Deschall team which have been very 
decent competitors. The competition have been "friendly" in all 
aspects. I guess they were just plain faster... :)

Anyway, if they hadn't found the key, we would have found it at
about 54.7% of the keyspace searched. So there still was some 
work to be done... :)

We will begin removing the keyservers soon. 
Keymaster.des.sollentuna.se will be left running for the time
being and the web-pages and FTP archive will still be available.
We'll look into releasing the server source, although I cannot 
make any definite promises yet.

Again, many thanks to all the contributors!

As a side note, if you still feel like spending some of your
idle computer time on a fun project. Look at the Bovine RC5 
cracking effort. (http://rc5.distributed.net).

Another large scale internet based effort is the Great Internet
Mersienne Prime search. More info is availalble at:
http://www.mersenne.org

Regards,
  Fredrik Lindgren and Magnus Hagander
  SolNET DES Team

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---
Fredrik Lindgren, System Admin, SolNET - Sweden

PGP Key at:
http://www-swiss.ai.mit.edu/~bal/pks-commands-beta.html#extract
PGP Key ID: 0x26AC580D (Fredrik Lindgren <fli at solnet.sollentuna.se>)

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