Date: Tue, 24 Apr 2012 22:02:03 +0200 From: magnum <john.magnum@...hmail.com> To: john-dev@...ts.openwall.com Subject: Re: Cracking Office 2007 files with JtR! Dhiru, I added proper Unicode support to the Office format. Please have a look at how it's done, it's very simple (all you need is in unicode.h). It's not much tested yet. For any and all future Unicode formats, please always add FLG_UNICODE. This flag should be added for all formats that in some way use Unicode, even if there's only simple type-cast support like what you had in there. After adding full support (as in this patch) we also add FLG_UTF8, which says the support is "complete". BTW I also saw that OMP scales very poorly but I don't know why yet. magnum On 04/02/2012 07:20 PM, Dhiru Kholia wrote: > On Mon, Apr 2, 2012 at 10:30 PM, Solar Designer <solar@...nwall.com> wrote: >> On Mon, Apr 02, 2012 at 09:04:52PM +0530, Dhiru Kholia wrote: >>> I have just committed a rough (it is in heavy debugging stage) patch >>> to crack Office 2007 documents with JtR. >> >> Wow. Thank you! >> >> Well, but it wouldn't work yet since you had the password being tested >> hard-coded. ;-) I've corrected this with the attached patch (it also >> speeds things up by a whopping 1% here). > > heh, my bad! Will apply your patch to git. > >>> Performance on Atom(TM) CPU N270, >>> >>> $ ../run/john -format=office -t >>> Benchmarking: Office [32/32]... DONE >>> Raw: 30.3 c/s real, 30.3 c/s virtual >> >> That's 50k iterations of SHA-1. Definitely something to have on GPU. >> And no need to move AES to GPU then. > > True. > >> Why is the length limited to 8? Can't Office 2007 files have longer >> passwords? > > Password can be longer. Fixing this too. Thanks for the early report. >
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