Date: Sat, 18 Jul 2015 02:56:39 +0200 From: magnum <john.magnum@...hmail.com> To: john-users@...ts.openwall.com Subject: Re: Re: Re: restore difficult zip password On 2015-07-18 01:05, rysic wrote: > I configured my john to gues max 4 length passwords: > > [Incremental:Custom] > File = $JOHN/custom.chr > MinLen = 0 > MaxLen = 4 > > (...) This is not needed at all, just use -max-len=4 > 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. > You wrote about -stdout. I saw that in documentation but it is not working: > > linux-kq4w:/home/kamil/john-1.8.0-jumbo-1/run # ./john -stdout test6.h > Invalid options combination or duplicate option: "-stdout" It's not used with a hash file. It's used with a mode, like this: $ ../run/john -inc:digits -stdout | head Press 'q' or Ctrl-C to abort, almost any other key for status 12345 123456 11111 121288 123444 121290 010189 010190 012222 012233 magnum
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