Date: Tue, 28 May 2019 20:07:36 +0200 From: magnum <john.magnum@...hmail.com> To: john-users@...ts.openwall.com Subject: Re: zip2john fails to hash my zip file On 2019-05-21 20:58, magnum wrote: > On 2019-05-21 10:56, Dudy Dudy wrote: >> I followed your advice and could very easily produce an archive that >> presents the same problem. >> Using 7zip's UI on Ubuntu, it's easy to create an archive with the >> following characteristics (mostly default values): >> >> * Archive format: zip >> * Compression level: Normal >> * Compression method: Deflate >> * Dictionary size: 32 KB >> * Encryption method: AES-256 >> >> When running zip2john on the resulting file, I get a gigantic hash >> (several screens) and the final line is: >> ver 81.9 7z2john.zip/7z2john.py is not encrypted, or stored with >> non-handled compression type >> >> Does this help? >> Is there a way to feed the original information to zip2john? > > Thanks, then we should be able to reproduce the problem. I opened an > issue on GitHub for it: > https://github.com/magnumripper/JohnTheRipper/issues/3985 This turned out to be purely cosmetical so you can ignore the warning (but this will soon be fixed on GitHub). The long hash that was produced *is* valid and can be cracked. magnum >> ________________________________ >> De : magnum <john.magnum@...hmail.com> >> Envoyé : lundi 20 mai 2019 19:48 >> À : john-users@...ts.openwall.com >> Objet : Re: [john-users] zip2john fails to hash my zip file >> >> On 2019-05-20 21:30, Solar Designer wrote: >>> This is in addition to magnum's answer (which is correct and >>> JtR-centric, as is most appropriate for this list, but I feel I can add >>> beyond-JtR material as well). >> >> Those additions might be correct or not in this case, I'm not sure >> (anyway they are definitely good things to know). >> >> As far as I understand, nothing in the mentioned zipinfo output confirms >> it's really a pkzip-type file at all (or does it?). In fact (again I'm >> not sure about anything here) off the top of my head the "minimum >> software version required to extract: 5.1" tells us this is likely >> beyond pkzip and more like winzip (but apparently there's no certainity >> it's even that - it could be some mish-mash that only 7z is able to >> produce). >> >> magnum >> >> > > >
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