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Date: Mon, 13 Jun 2016 16:13:26 -0600
From: "Revan" <>
To: <>
Subject: RE: RAR optimization

How do I force john to the multiple cores or gpu?

-----Original Message-----
From: Rafael Carnicer Torres [] 
Sent: Monday, June 13, 2016 2:18 AM
Subject: Re: [john-users] RAR optimization

Hello , if you want to better performance , you need use a GPU or multiples cpus.
Its a very slow hash.

I´m working now with rar .I have several machines. 1 xenon , dual core  and
1 GPU 5870 with 4 rar hash at the same time working at 2000c/s more or less.
Only 1 hash in a amd fx8350 + r9 290  gpu working at 12000c/s .

2016-06-12 23:46 GMT+02:00 Marshall Fager <>:

> I have a rar pw I'm trying to retrieve. Runing JtR Jumbo in Cygwin, 
> windows 10, amd processor. Any way to get better performance from Jtr 
> for RAR decrypts? I'm at like 35 c/s L

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