john-users - Re: sha1 + hex salt

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Date: Wed, 15 Feb 2012 15:47:38 +0100
From: Samuele Giovanni Tonon <samu@...uxasylum.net>
To: john-users@...ts.openwall.com
Subject: Re: sha1 + hex salt

On 02/15/12 15:01, aprivater@...il.com wrote:
> Solar Designer wrote:
>> On Wed, Feb 15, 2012 at 12:39:05AM -0500, aprivater@...il.com wrote:
>>> is john supports sha1 bruteforce with a hex salt?
>>
>> As far as I'm aware, there's currently no easy way to specify salts in
>> hex, except in some special cases (the XSHA format happens to be almost
>> right for your case - but see below).
>>
>>> sha1:20c59472b34ec4b9678b7149d519a2338bc31ba9   salt:00000000
>>> password is 92086390

if you have fixed salts, and you just need to look for one at fixed time,
you could go for sha1 format in john and append the given salt to the
cleartext password in the rawsha1_set_key()


Cheers
Samuele