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Date: Thu, 24 Jan 2008 19:57:39 +0300
From: Solar Designer <>
Subject: Re:  question about charsets

On Thu, Jan 24, 2008 at 04:25:30PM +0000, helleye wrote:
> looked in the source
> saw 3d table , guess it is for the 3 last chars , then u decalre an array of 
> that for the next char , but didnt see a different one for each position?

No, you've got it wrong.

The chars[] array declared in inc.c: do_incremental_crack() is indexed
with the position, and the lookup result is a pointer to a 3D array,
which is in turn indexed with 2 preceding character values (ASCII codes
minus CHARSET_MIN) and the index (not directly related to ASCII code)
for the character to be tried.  The final lookup result is the ASCII
code for that character.

Alexander Peslyak <solar at>
GPG key ID: 5B341F15  fp: B3FB 63F4 D7A3 BCCC 6F6E  FC55 A2FC 027C 5B34 1F15 - bringing security into open computing environments

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