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Message-ID: <20110627092518.GA5223@openwall.com>
Date: Mon, 27 Jun 2011 13:25:18 +0400
From: Solar Designer <solar@...nwall.com>
To: john-users@...ts.openwall.com
Subject: Re: brute force attack of an Unix crypt
On Mon, Jun 27, 2011 at 12:03:23PM +0300, Martin T wrote:
> Bartavelle, I see. Now I understand what those "c/s" values are :) In
> order to try all possibilities, it would take 226 years:
>
> (95^8)/930000/3600/24/365
Yes, assuming that you continue running the same highly non-optimal
build of JtR on the same machine.
> ..and thus in average password should be cracked with 113 years
This assumes that the password was based on a random number generator
with a uniform distribution, and using the entire printable US-ASCII
character set. Both of these are likely not true. So the average may
be much better.
Alexander
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