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Date: Fri, 24 May 2019 18:28:32 +0200
From: "Johny Krekan" <krekan@...nykrekan.com>
To: "john-users@...ts.openwall.com" <john-users@...ts.openwall.com>
Subject: Re: exact performance of supported ztex board for WPA/PSK cracking

Thanx for information, so for cracking WPA PSK can John use other than GPU 
acceleration if yes what devices? GPUs are very temperature-intensive.
Johny Krekan
>
>Solar Designer solar@...nwall.com
>24. 5. 2019 16:24
>
>Hi,
>On Fri, May 24, 2019 at 03:52:30PM +0200, JohnyKrekan wrote:
>> 1. What is the performance of a single ztex-15y board when used to crack 
WPA 
>PSK password? (passwords/sec)?
>Currently none since it's not one of the 7 hash types that we support on
>those boards.
>There's this academic paper about implementation of WPA PSK on FPGA:
>https://eprint.iacr.org/2016/547
>On ZTEX 1.15y, they get 87k p/s for WPA PSK. I'm not aware of them
>having ever released their designs and host code, so it's not something
>you can use.
>If we approached this task, we'd probably get somewhat higher
>performance (up to 2x higher), but we have no such plans currently.
>> 2. Is it possible to conect such device to a notebook using some kind of 
USB 
>rack?
>Yes. For one or a few devices, you just connect them directly to the
>laptop's USB ports. For more than just a few, you need hub(s). Either
>way, you also need 12V DC power adapters, but that's cheap and easy.
>> I have found some devices
>Where? I know quite some JtR users would like to purchase those boards
>now, but have difficulty finding them available for sale. So maybe you
>could help the community by sharing your source for those boards, after
>you've purchased whatever quantity you might need for your own needs (if
>you need one of the 7 supported hash types cracked on those boards, not
>just the unsupported WPA PSK).
>Thanks,
>Alexander

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