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Date: Mon, 22 Feb 2016 19:21:23 +0100
From: magnum <john.magnum@...hmail.com>
To: john-users@...ts.openwall.com
Subject: Re: Cracking zip files

On 2016-02-22 18:10, Marek Wrzosek wrote:
> Hi list,
>
> I've two zip files, both with password 'password'. In one
> (some_files.zip) there is file hello with 'Hello, world!' in it ans
> hello.zip with previous hello file. JtR is cracking this zip without
> problems.
> Second file - some_pdfs.zip contains two test pages in pdf, and JtR only
> response is:
> No password hashes loaded (see FAQ)
>
> Here are outputs of zip2john for both zip files:
> some_files.zip:$zip2$*0*1*0*22577113145210b4*53db*e*528cd4370de59591f699fa532102*7a35bb447cf2cd3e3d62*$/zip2$:::::some_files.zip
> some_pdfs.zip:$zip2$*0*1*0*4415572909d35406*1eb1*19be3*ZFILE*some_pdfs.zip*19c71*19cbc*ba511bb0d50f478e281f*$/zip2$:::::some_pdfs.zip
>
> I suppose that first one is OK, because is small and JtR doesn't need
> some_file.zip to crack it, it only need output of zip2john. Both zip
> files are in JtR's working directory.
>
> https://dl.dropboxusercontent.com/u/68111957/some_files.zip
> https://dl.dropboxusercontent.com/u/68111957/some_pdfs.zip
>
> Best Regards,
> Marek

Thank you, with this I was able to reproduce the problem. I'm currently 
bisecting it, tracking down the exact commit that caused the problem.

This is now https://github.com/magnumripper/JohnTheRipper/issues/2063 - 
I will not post any further progress on this list.

magnum

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