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Date: Sun, 19 Jul 2015 00:57:46 +0200
From: rysic <rysic@...pl>
To: "john-users@...ts.openwall.com" <john-users@...ts.openwall.com>
Subject: Re: Re: Re:  Re: restore difficult zip password

Sure! This file contains:

test6.zip:$pkzip2$1*2*3*7*1f3eb51*38a4000*9feb9743*0*61*8*9*9feb*20a6*test6.zip*$/pkzip2$:::::test6.zip



W dniu 2015-07-18 21:05:38 użytkownik magnum <john.magnum@...hmail.com> napisał:
> On 2015-07-18 02:56, magnum wrote:
> > On 2015-07-18 01:05, rysic wrote:
> >> And then I'm creating encrypted zip file (password is "asd")
> >>
> >> linux-kq4w:/home/kamil/john-1.8.0-jumbo-1/run # zip --encrypt
> >> test6.zip ../../Pobrane/john-1.8.0-jumbo-1.tar.gz
> >> Enter password:
> >> Verify password:
> >>    adding: ../../Pobrane/john-1.8.0-jumbo-1.tar.gz (deflated 45%)
> >>
> >> generating hash file:
> >> linux-kq4w:/home/kamil/john-1.8.0-jumbo-1/run # ./zip2john test6.zip >
> >> test6.h
> >> ver 14  efh 5455  efh 7875
> >> test6.zip->../../Pobrane/john-1.8.0-jumbo-1.tar.gz PKZIP Encr: 2b chk,
> >> TS_chk, cmplen=32762705, decmplen=59392000, crc=9FEB9743
> >>
> >> And try to crack it:
> >> linux-kq4w:/home/kamil/john-1.8.0-jumbo-1/run # ./john test6.h
> >> Loaded 1 password hash (PKZIP [32/64])
> >> Will run 4 OpenMP threads
> >> Press 'q' or Ctrl-C to abort, almost any other key for status
> >> 0g 0:00:00:08 DONE 3/3 (2015-07-18 00:46) 0g/s 9175Kp/s 9175Kc/s
> >> 9175KC/s |C%|..||||
> >> Session completed
> >
> > What version of "zip" are you using? This looks like a bug in our pkzip
> > format, and if it is, it's a really really bad one.
> > At least one obscure bug was fixed since Jumbo-1, so you might want to
> > try building latest code from GitHub.
> 
> BTW could you please post the contents of that "test6.h" file? It should 
> be short enough you can just attach it. We might be able to reproduce 
> and see what went wrong.
> 
> magnum
> 
> 


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