john-users - Re: Cracking zip files

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Message-ID: <CAB1R3sjmgDC1YWqiKad4RY-=DNe2S4pi74FLrpG7r=thqHBLEg@mail.gmail.com>
Date: Sat, 20 Feb 2016 15:39:37 -0500
From: Alex <mysqlstudent@...il.com>
To: john-users@...ts.openwall.com
Subject: Re: Cracking zip files

Hi,

> I significantly improved this format in 2014.  There are no longer any false
> positive results.  The hash 'signature' was changed (I had to add additional
> data from
> the .zip file to remove the false positive problem), so you will have to
> regenerate
> the hash. Get the latest john version from:
>
> https://github.com/magnumripper/JohnTheRipper/archive/bleeding-jumbo.zip
>
> The new code uses autoconf, so simply change into the ./src directory, and
> then do:
>
> ./configure && make -sj4

I noticed this doesn't include OpenMP support automatically. It's been
some time since I've compiled john, but wouldn't my system benefit
from that? I've added that, but also noticed OpenCL support isn't
enabled:

Configured for building John the Ripper jumbo:

Target CPU ................................. x86_64 SSE2, 64-bit LE
AES-NI support ............................. depends on OpenSSL
Target OS .................................. linux-gnu
Cross compiling ............................ no
Legacy arch header ......................... x86-64.h

Optional libraries/features found:
Fuzzing test ............................... no
Experimental code .......................... yes
OpenMPI support (default disabled) ......... yes
Fork support ............................... yes
OpenMP support ............................. yes (not for fast formats)
CUDA support (default disabled by OpenCL) .. no
OpenCL support ............................. no
Generic crypt(3) format .................... yes
Rexgen (extra cracking mode) ............... no
GMP (PRINCE mode and faster SRP formats) ... no
PCAP (vncpcap2john and SIPdump) ............ yes
Z (pkzip format, gpg2john) ................. yes
BZ2 (gpg2john extra decompression logic) ... no
128-bit integer (faster PRINCE mode) ....... yes
Memory map (share/page large files) ........ yes

Development options (these may hurt performance when enabled):
Memdbg memory debugging settings ........... disabled
AddressSanitizer ("ASan") .................. disabled
UndefinedBehaviorSanitizer ("UbSan") ....... disabled

I've tried to install the mesa-OpenCL packages, but that doesn't
appear to have been enough on fedora22/23. Any ideas?

Thanks,
Alex

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