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Message-ID: <200403230005.i2N05qhj013402@turing-police.cc.vt.edu> From: Valdis.Kletnieks at vt.edu (Valdis.Kletnieks@...edu) Subject: commerical rainbow crack? On Mon, 22 Mar 2004 17:14:36 EST, Luke Scharf said: > On Mon, 2004-03-22 at 16:28, Richard Stevens wrote: > > thanks to all for the input., looks like john it is, with a little more pat ience :) > > > > out of interest, anyone think a distributed project using john would be us eful? something like the SETI screen saver thing... > > It sounds nifty and I'd love to use it -- but on the off chance that you > might use it to run my passwd file, I don't think I'll contribute any > CPU time... Think carefully - if they can use it to run your passwd file, then you're already screwed. How did they get your shadow passwords? :) Remember - you can't mount a dictionary attack unless you have an oracle of some sort to tell you if each guess is right or wrong - whether that be a known-correct hash of the password, a service that provides non-rate-limited authentication attempts, or other methods (such as being able to recognize plaintext because it's within the unicity distance - http://www.schneier.com/crypto-gram-9812.html#plaintext) -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 226 bytes Desc: not available Url : http://lists.grok.org.uk/pipermail/full-disclosure/attachments/20040322/b5730c61/attachment.bin
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