-----BEGIN PGP SIGNED MESSAGE----- At 03.05 AM 6/21/96 -0700, William Knowles wrote:
On Thu, 20 Jun 1996, jim bell wrote:
If done in parallel, on a dedicated, 200 MHz custom chip, my WAG says that such a chip could try, and statistically analyze the results of 10 million DES codes per second. (it would do the decrypts on a number of parallel DES blocks, and look for typical ASCII code pattern probabilities, again all in parallel.) A typical cracking system might have 100 boards of 100 such chips, or perhaps a 100 billion such decrypts per second. Checking the keyspace would require 2**19 seconds, or about a half million seconds, or 6 days. Average decrypt, of course, in 3 days.
Wasn't there a crypto paper three or four years ago that said if custom chips were used, a million dollar custom machine could crack a DES key in less than a day? =============================================================================== David Rosoff (nihongo o sukoshi dekiru) ----------------> drosoff@arc.unm.edu For PGP key 0xD37692F9, finger drosoff@acoma.arc.unm.edu 0xD37692F9 Key fingerprint = 25 7D AA 01 85 41 43 89 50 5A 33 76 F1 F1 99 67 Non-technical beginner's guide to PGP ---> http://www.arc.unm.edu/~drosoff/pgp/ Anonymous ok, PGP ok. If it's not PGP-signed, you know that I didn't write it. === === === === === === === === === === === === === === === === === === === === "Truth is stranger than fiction, especially when truth is being defined by the O.J. Simpson Defense Team." -Dave Barry -----BEGIN PGP SIGNATURE----- Version: 2.6.2 iQCVAwUBMctQlxguzHDTdpL5AQE0MgP9GAtJIBZRhV+VIIqiojiZsO5qz3vqN3xe 5UQ0W1uRxZgckLOs5h57/IiDhAGTwzoB1x4pOKlbsp/Pv2zgDNl5hTAUJiQIKpHX vdcyJBUYRUCCfHuZfRxXVeEhhWMzSowLvWNVyapLSwFo6exY1ozMgcchy1YSx1sd kEpJtlUegiE= =MfyQ -----END PGP SIGNATURE-----