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Project CSC: key found
The CSC Project is over. On 16 January 2000, shortly before 0630 GMT, we received the winning key (00438EF36FE3FC21 for you tech junkies) from a Sparc in the United States. The secret message was:
CS-Cipher a ete presente en mars 97 a 'Fast Software Encryption' (PARIS). Congratulations to the winner!
The Winner is Paul Ilardi, a graduate student at the University of Rochester. Congratulations to Paul!
We're going to leave some of the pages below on-line for nostalgia.
an introduction to the CSC effort
distributed.net is leading a new cryptographic effort to crack a 56-bit key and decrypt a message that has been encrypted with the CS Cipher.
The CS-Cipher Challenge is organized by CS Communications & Systems and will last until March 17, 2000. It is meant to demonstrate how weak a 56-bit key is against brute force attacks. A 10,000 Euros prize is at stake, so download a client and start cracking those CS keys!
The CS-Cipher Algorithm is a symmetric block cipher, meaning that the same key is used to encrypt and decrypt the message. The algorithm supports variable key lengths ranging from 0 to 128 bits and handles message encryption and decryption in fixed-size 64 bit blocks.