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Date: Wed, 04 May 2016 12:30:03 +0200
From: Doc Case <drdrgmtn@...o.com>
To: "john-users@...ts.openwall.com" <john-users@...ts.openwall.com>
Subject: Re: PBKDF2-SHA1 3DES/AES

Thank You!

I have contacted sagitta.pw which offer the same kind of service, but focused on password cracking.

I didn't thought about Amazon Web services... 

Any hint on how to perform parallel instances?  My pc has an Athlon FX, with 8 core and i have compiled John with OpenMPI, so seems to work in a right way. I don't have experience in AWS, and maybe I've done a bad config for my PC because i'm using the John standard configuration... have you something to read?



Thanks again!


Sent using Zoho Mail






---- On Wed, 04 May 2016 09:16:36 +0200 Harssh Mahajan &lt;harssh@...il.com&gt;wrote ---- 




You could consider using large instances with per hour pricing on AWS 

https://aws.amazon.com/ec2/pricing/ for more power, alternate to purchasing 

hardware. 

 

To speed up computation, run tasks in parallel and/or on multiple 

instances, for varied lengths. 

 

E.g. 

 

 - Same instance - Thread 1 for 6-8 length, Thread 2 for 8-10 length and 

 so on. 

 - Multiple instance - Instance 1 for 6-8 length, Instance 2 for 8-10 

 length and so on. 

 

 

 

On Wed, May 4, 2016 at 1:36 AM, Doc Case &lt;drdrgmtn@...o.com&gt; wrote: 

 

&gt; Hi everyone, 

&gt; 

&gt; 

&gt; 

&gt; I'm a new user, and I'm a forensic consultant. This is my first time 

&gt; cracking a password so complex. 

&gt; 

&gt; I need help breaking this one because I don't have enough power to obtain 

&gt; anything in short time... A little background: 

&gt; 

&gt; 

&gt; 

&gt; in support of a litigation I've acquired an archive protected with system 

&gt; in subject. I've extracted the hash with one of the community tool, and 

&gt; with JTR i began trying all the standard modes: 

&gt; 

&gt; Single, dictionary, and incremental. 

&gt; 

&gt; I used the standard free wordlist (all.gz) and my linuxbox, with one GT970 

&gt; and openCL, works at 3500p/s - c/s - C/s. 

&gt; 

&gt; I reached three days straight of computational time, without any result. 

&gt; 

&gt; So, I suppose that this password is a good one. 

&gt; 

&gt; Anyway, I need it and i don't have any shortcut: no common words or ideas, 

&gt; no info at all. 

&gt; 

&gt; All I have is brute force, if I don't go wrong. 

&gt; 

&gt; So I'm here asking for help: is there any way to speed up the work? Beside 

&gt; buying 24 graphic cards tomorrow, I mean... 

&gt; 

&gt; 

&gt; 

&gt; Any help is really appreciated, 

&gt; 

&gt; 

&gt; 

&gt; Doc 

&gt; 

&gt; 

&gt; 

&gt; Sent using Zoho Mail 

&gt; 

&gt; 

&gt; 

&gt; 

&gt; 

&gt; 







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