Full Disclosure mailing list archives

Re: Cracking the entire set of DES-based crypt(3) hashes. Interested ?


From: "XRR ." <xor.rax.rax () gmail com>
Date: Mon, 30 Jul 2007 16:02:34 -0700

On 7/30/07, Michael Holstein <michael.holstein () csuohio edu> wrote:

Sure it will, it just takes adjustments to john.conf and a *lot* longer.
djohn (distributed JtR) was written to address this.

Exactly. And my point is that it is only doable in a reasonable amount of
time if you have on the order of 1e5 cpu cores in the cluster. I can do it
for $4M, lower estimate.

Not cheap enough.

The EFF built a gizmo (in 1998 no less) that could to it in 4.5 days on
average :

Correct. But multiply this by the 25 iterations of DES required by crypt().
So one EFF DES cracker, or better, one copacobana box has a cracking
throughput of 1 hash every 100 days or so.

Not good enough.

-XRR

_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.grok.org.uk/full-disclosure-charter.html
Hosted and sponsored by Secunia - http://secunia.com/


Current thread: