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Date: Sat, 29 Dec 2012 22:52:30 +0400
From: Solar Designer <>
Subject: Re: pwsafe2john - How to use this program, preferably in Windows or in Linux if Windows is a no-go?

On Sat, Dec 29, 2012 at 07:17:50AM +0000, John Hall wrote:
> 1. installed Fedora 17 Desktop on VM Workstation running on Win 7, 64-bit.

FWIW, you could as well install Cygwin (32-bit) on your Windows, and
then make and run a JtR unstable-jumbo build for Win32, without a VM.

The approach with a VM is also fine, though.

> 7. make clean linux-x86-sse2

To use more than one CPU core, you may want to enable OpenMP support in
the Makefile by uncommenting this line:

#OMPFLAGS = -fopenmp -msse2

(remove the "#" character).  Dhiru's pwsafe format in JtR supports that.

However, please note that your VM settings (if you continue to use a VM)
will need to be such that multiple logical CPUs are seen from the VM.
(The default is often to provide only one logical CPU to the VM.)

If you choose to use Cygwin instead, there's another potential hurdle -
because of a Cygwin issue, you may need to take the cygwin1.dll file
from our official builds of (older versions of) JtR for Win32 (e.g.,
from linked from the JtR homepage).  This issue is
specific to Cygwin and OpenMP, and it manifests itself in JtR stopping
to respond to keypresses (and not making any progress with the cracking
either) after it's been running for a little while (e.g. a few minutes).
The cygwin1.dll file in our .zip's has a workaround for this.


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