john-users - Re: keyspace, mask password and dumb bruteforce

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Date: Wed, 21 Jan 2009 16:45:17 -0600
From: Billy Newsom <billy@...c.us>
To: john-users@...ts.openwall.com
Subject: Re: keyspace, mask password and dumb bruteforce

You know, if I might butt in here... I haven't looked at 
http://distributed.net/ in a long time, but for the last 10 years at least 
they have had clients, and open source clients, which are made to distribute 
blocks of hashes to be cracked with a number of different algorithms. In other 
words, it is already a distributed form of John, albeit written independently 
I would guess.

Why don't you see if the licenses of the codes would allow you to sort of meld 
the d.net client/server platforms with the complexity of John. In effect, the 
interface of John is terrible but powerful, while the distributed clients are 
easy but pretty dumb. I think you need easy and dumb and distributed... Now 
just hack their stuff to do the cracking you need to do, right? Probably 
over-simplifying, but that's my 2 cents.

I would much rather work with something already into networking and hash 
passing and key distribution instead of hacking into jTr. Look, there's a wheel!

Solar Designer wrote:
>> keyspace to crunch, therefore saving network bandwith. 
> 
> If I understood you correctly, you're essentially suggesting to split
> the keyspace manually.  Yes, this is what I recommend most of the time -
> especially when the number of CPU cores to distribute the workload
> across is relatively small.  You might want to take a look at these
> older postings:
> 
> 	http://www.openwall.com/lists/john-users/2008/04/08/4
> 	http://www.openwall.com/lists/john-users/2005/08/24/4
> 
> Alexander
> 


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