Date: Thu, 4 Apr 2013 02:19:49 +0200 From: magnum <john.magnum@...hmail.com> To: john-dev@...ts.openwall.com Subject: Re: Python port of dmg2john utility On 3 Apr, 2013, at 22:13 , Solar Designer <solar@...nwall.com> wrote: > On Wed, Apr 03, 2013 at 09:27:36PM +0200, magnum wrote: >> On 3 Apr, 2013, at 19:29 , Dhiru Kholia <dhiru.kholia@...il.com> wrote: >>> I am attaching Python port of dmg2john utility for review. >>> >>> If everything seems to be OK, I will open a pull request. >> >> I suppose you had reasons so I'm fine with that, except I refuse to learn Python so I can't review it. I believe Solar would prefer things getting ported *from* python and not the other way round :-) > > This started with an off-list request from me to Dhiru to develop either > a script version of dmg2john, or a script that could provide us with > sufficient input for a revision of dmg2john while not revealing the dmg > file's more sensitive content. This is to allow for usage of our tools > to provide password recovery services (free or paid, doesn't matter). > dmg files themselves are generally too large and too sensitive to be > delivered to a password recovery service provider, and our C version of > dmg2john would either need to be provided as a compiled program binary, > or would require to be built from source by the customer (cumbersome). > > I suggested that this would be a shell (with dd) or Perl script, but > Dhiru chose Python, pointing out that OS X had Python included for very > long. While I would have preferred shell or Perl, I am fine with > Dhiru's choice here, as it seems to satisfy the use case above. Sounds reasonable. I tried it on a couple of files (a small v1 and a DVD-sized v2 that would break 32-bit limits) and it produced the exact same outputs as the C version. magnum
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