[RC5] [ADMIN] DES-II-2 is over...
untulis at netgate.net
Fri Jul 17 16:01:57 EDT 1998
Pete Krawczyk <petek at mc.net> wrote:
: At 03:49 AM 7/17/98 -0500, Alan Beberg wrote:
FYI, it's Adam...
: >In a press release (http://www.eff.org/descracker.html) the Electronic
: >Frontier Foundation (EFF) announced today that it had beat DES-II-2
: >using a machine it developed for US$250,000 designed specifically to
: >crack DES.
: I'd like to point out that the EFF claims that their key was found
: at approximately 25% of the keyspace, or after searching over 17
: quadrillion keys. This is approximately the same point that
: distributed.net is at now.
: Which means someone should crunch the "winning" block today.
Assuming that they were searching in the same "direction" as we were. If
your assumption holds, it's sort of a bummer that we didn't get there
: And if you read the press release, they said the DES cracking was
: software based. Thus, we should be able to get them an RC5 core.
That's not the way I read that. Although the code to check to see if a
particular key is *the* one is software, the hardware is where the speed
comes from and that is checking NOT *the* one. It's unclear from the FAQ
how specific the hardware is, but my gut reaction is that it only works
for DES, not RC5 or anything else. (And it's probably bit-length specific,
i.e. a RC5-64 cracking chip wouldn't be useful for RC5-72, although the
reverse might not be strictly true....)
Maybe this is alternate approach for the RC5 hardware team... or the
software core team... Is it faster to check if a key is or isn't *the*
Jason Untulis, Ravenous Media Consumer /\ / untulis at netgate.net
<http://www.netgate.net/~untulis/> \ /==\ / untulis at netcom.com
protected by spamgard[tm] \/v2.4\/ untulis at leland.stanford.edu
PGP key soon (C) <http://www.netgate.net/~untulis/copyright.html>
To unsubscribe, send 'unsubscribe rc5' to majordomo at lists.distributed.net
rc5-digest subscribers replace rc5 with rc5-digest
More information about the rc5