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Date: Wed, 21 Nov 2012 12:56:36 -0500
From: kzug <kzug10@...il.com>
To: john-users@...ts.openwall.com
Subject: Re: What do you recommend as a laptop cracking station? :)

It's going to be a point of contention, but…

I personally (me, myself and I ) believes that buying a laptop for that sole purpose is not the most financially wise decision.  

A laptop is not something that is easily upgradable nor re-configurable, it runs hot and will not allow for a second card to be installed. 
Build your own desktop, get something upgradable, …or use  Amazon EC2 ,  As many GPU as you want to, for as long as you want to. 

>  Is it really worth
> to buy a strong GPU card? Or is it better get more and more powerful
> processors?

GPU (s). definitively .  They're cheaper and faster …. 
Matt/Rich/Magnum  can explain in details 


http://arstechnica.com/security/2012/08/passwords-under-assault/
http://ob-security.info/?p=274
http://www.pcpro.co.uk/blogs/2011/06/01/how-a-cheap-graphics-card-could-crack-your-password-in-under-a-second/

http://contest-2012.korelogic.com/











On WednesdayNov 21, 2012, at 12:37 PM, Richard Miles wrote:

> Hi
> 
> I'm considering buying a new laptop and I want to do a decision based on
> specs to crack passwords, in other words, I need a real animal to crack
> passwords, I now that laptops are not as powerful as desktops, but I hope
> to find something really good.
> 
> I looked at AllienWare and Macbook PRO and I got a bit frustrated. I don't
> know if it exist, but I was looking for a laptop with at least 8 cores and
> at least one AMD 7970GPU. Do you have any recommendation? Or suggestion of
> better configuration for a laptop being used as a password cracking
> station? :)
> 
> Also, I don't have experience with the GPU cracking, but I often see people
> telling that a few password hash formats are supported. Is it really worth
> to buy a strong GPU card? Or is it better get more and more powerful
> processors?
> 
> Most of the passwords that I have to crack are NTLM, NetNTLMv1, NetNTLMv2,
> mscache, halfLM, mysql, mysql network authentication, mssql, msql05, oracle
> hashes (local store and network) and a few passwords stored at shadow file
> (linux most of the time).
> 
> I remember that I was reading some recent slides from Solar Designer where
> he talked about a new technology (Intel?) that incorporate a LOT of CPUs
> and looks as a strong competitor for GPU and do not require that amount of
> change on the code as GPU does. I could wait for this new technology is
> there is a date to be release and price available, but I would not like to
> wait like 1 year to get a new laptop to play with passwords.
> 
> You advised and recommendations are very welcome.
> 
> Thanks and sorry if it's a bit off-topic.

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