Date: Wed, 1 Sep 2010 21:18:07 +0000 (GMT) From: Mr Ex <ex_says@...oo.co.uk> To: john-users@...ts.openwall.com Subject: Fw: Noob question: how to feed 10 alphanum char min&max incremental to aircrack when "MaxLen = 10 exceeds the compile-time limit of 8" Thanks for the reply. It does need to be 10 alnum as the passphrase won't just be digits (and I'd be using Mac OSX). So its not possible to just do 10-10 alphanum chars on JtR as far as anyone knows? Given that I don't want 9, 8, 7 or less alnum chars nor 11+ alnum chars *just 10*, seems quite a reasonable, not too overly time-consuming crack to want to feed through from John, I'd be surprised if its not possible. I take what you're saying in terms of generating a custom .chr file and have re-read http://www.openwall.com/john/doc/EXAMPLES.shtml but isn't that method merely a way of filtering, i.e. it won't actually make John do a min 10 / max 10, or am I just not understanding it right? -EX ----- Forwarded Message ---- From: Rich Rumble <richrumble@...il.com> To: john-users@...ts.openwall.com Sent: Wed, 1 September, 2010 15:35:49 Subject: Re: [john-users] Noob question: how to feed 10 alphanum char min&max incremental to aircrack when "MaxLen = 10 exceeds the compile-time limit of 8" http://openwall.info/wiki/john/mailing-list-excerpts http://www.openwall.com/lists/john-users/2007/07/04/6 Specifically... You have to create your own CHR files and recompile. I have not had success with compiling anything other than digits over 8, you can DL my digit only build (up to 16 digits) here: hxxp://xinn.org/jtr__digits/john-digits-16.7z (windows only) If you don't have 7zip you can find it easily. This build will only crack digit only hahses with lengths from 1-16 digit characters long. The build is against JtR 1.7.6 jumbo rev 5. I'm not sure how to run it against a pcap, but if it's supported by JtR or the jumbo patch it should work. I should try again to build an AlphaNum JtR but I haven't had the time. You do have to modify the john.conf parameters to suite your needs: # Incremental modes [Incremental:Digits16] File = $JOHN/digits16.chr MinLen = 1 MaxLen = 16 CharCount = 10 Command line: john-digits-16.exe pass.pwd -i=digits16 -format=nt I hope that helps some... -rich On Wed, Sep 1, 2010 at 3:28 AM, Mr Ex <ex_says@...oo.co.uk> wrote: > Hi > > I'm a total noob who is trying to run a crack specified to effectively brute > force 10 characters only and alphanumerical only (against a pcap)... I modified > the config file; the alpha numerical bit, so that it was minimum 10, maximum > 10, as this just seemed logical from reading the help file, and then
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