On Jun 9, 2011, at 7:34 PM, Sandy Harris wrote: > One indicator is the Copacobana machine, built from FPGAs, The first > version a few > years back cost 9,000 euro and broke DES in a week. There's a later version. > http://www.copacobana.org/ > > Of course a bunch of those in parallel could break it faster. That's a > 56-bit key. 64-bit > is 256 times harder, but certainly within reach of an attacker with > large resources. > > Judging solely by this, only someone with a huge budget, such as a major > nation's intelligence agency, could afford to attack 80-bit keys.
On Jun 9, 2011, at 10:11 PM, Solar Designer wrote: > Here's a smaller implementation: > > http://www.invia.fr/AES-20.html Thanks, that is exactly the kind of hard data I was looking for! --Paul Hoffman _______________________________________________ cryptography mailing list [email protected] http://lists.randombit.net/mailman/listinfo/cryptography
