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 <harssh@...il.com>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 <drdrgmtn@...o.com> wrote: > Hi everyone, > > > > I'm a new user, and I'm a forensic consultant. This is my first time > cracking a password so complex. > > I need help breaking this one because I don't have enough power to obtain > anything in short time... A little background: > > > > in support of a litigation I've acquired an archive protected with system > in subject. I've extracted the hash with one of the community tool, and > with JTR i began trying all the standard modes: > > Single, dictionary, and incremental. > > I used the standard free wordlist (all.gz) and my linuxbox, with one GT970 > and openCL, works at 3500p/s - c/s - C/s. > > I reached three days straight of computational time, without any result. > > So, I suppose that this password is a good one. > > Anyway, I need it and i don't have any shortcut: no common words or ideas, > no info at all. > > All I have is brute force, if I don't go wrong. > > So I'm here asking for help: is there any way to speed up the work? Beside > buying 24 graphic cards tomorrow, I mean... > > > > Any help is really appreciated, > > > > Doc > > > > Sent using Zoho Mail > > > > > >
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