Date: Sun, 26 Jul 2020 09:50:18 -0400 From: Alexander Hunt <alexhunt308@...il.com> To: "john-users@...ts.openwall.com" <john-users@...ts.openwall.com> Subject: Re: Known part of password, attempting incremental attack Thank you Alexander. I had John running in a Linux VM on my Windows machine so I was unable to use the GPU. I’ve had issues with dual booting before which is why I used a VM. I will install a Linux distro onto a separate drive so I can have GPU support. I have an AMD FX6300 and a Radeon R9 280x, so outdated old hardware but good for its day. I will try the suggestions you gave.. thank you Alexander. On Thursday, July 23, 2020, Solar Designer <solar@...nwall.com> wrote: > On Wed, Jul 22, 2020 at 09:27:53PM -0400, Alexander Hunt wrote: > > It is a pages document so i used iWork2john > > > > [List.Rules:nraph] > > A0???Known??? Az???0!??? > > A0???Knownba??? Az???0!??? > > A0???Known??? Az???ba0! > > A0???Knownguft??? Az???0!??? > > > ./john --wordlist=wordlist.lst --rules=nraph > > This looks reasonable (assuming you had proper ASCII quote character > there and not the fancy UTF-8 one that Gmail substituted, and that you > didn't miss the closing quote on rule 3 above). > > > Speed: > > 344.3 p/s > > You didn't mention the iteration count, but for iteration count 100000 > that we use in benchmarks this would correspond to an older quad-core > CPU without AVX2. That's fine. > > We also support iWork on GPU, where you could get maybe 100x higher > speeds, like this on Vega 64: > > $ ./john -test -form=iwork-opencl > Device 1: gfx900 [Radeon RX Vega] > Benchmarking: iwork-opencl, Apple iWork '09 or newer [PBKDF2-SHA1 AES > OpenCL]... LWS=64 GWS=16384 (256 blocks) DONE > Speed for cost 1 (iteration count) of 100000 > Raw: 38824 c/s real, 431157 c/s virtual > > However, as always, it's more important to focus the attack than to > improve the speed. > > Alexander >
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