[RC5] RC5/64 completion time by Deep Gene
chris at improbable.org
Mon Dec 27 11:09:45 EST 1999
>Terrorists? Well, were talking months/years to crack 56 bit encryption,
>which is considered weak by many cryptologists. If these terrorists wanted
>to crack the encryption used for secure transactions through browsers (128
>bit, or 56 bit for international versions) or PGP encryption (1024-4096
>bits) they would need a few thousand/million Deep Genes to crack it in any
>reasonable amout of time.
That's true, but that's also assuming they limit themselves to general
purpose computers. Consider the price/performance ratios of the entire
distributed.net community and the EFF's $50K DES cracker. We're using regular
CPUs because we have them available (and with the modern clients, they're
surprisingly good). Anyone seriously looking at widespread cracks would use
custom hardware; unfortunately, that's cheap enough to be in the reach of
anyone from a well-to-do individual on up (your average large corp could
probably hide the cost in the janitorial supplies budget. Industrial
espionage is big these days...).
# Chris Adams <chris at improbable.org>
"The only real way to look younger is not to be born so soon."
-- Charles Schulz, "Things I've Had to Learn Over and
Over and Over"
To unsubscribe, send 'unsubscribe rc5' to majordomo at lists.distributed.net
rc5-digest subscribers replace rc5 with rc5-digest
More information about the rc5