Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Fri, 6 May 2011 23:09:04 +0400
From: Solar Designer <>
Subject: Re: add support for cracking RAR archive passwords [GSoC first cut]


On Fri, Apr 29, 2011 at 05:21:10AM -0700, Dhiru Kholia wrote:
> Apply the patch on top of john-1.7.7-jumbo-1. See src/drar.c for usage
> instructions. I have also uploaded the patch to the wiki
> (
> As expected, speed sucks (~40 c/s) due to 256K rounds of SHA1. I
> believe that RAR archive password cracking will be perfect a candidate
> for GPU implementation (Lukas?) :-). Currently, only RAR's "-hp" mode
> is supported.

Thanks!  I tried searching the web for a sample encrypted RAR file, but
I only found this one:

which is not supported:

$ ./drar example_password_protected.rar > pw-example_password_protected
! example_password_protected.rar : RAR -p mode support not implemented yet, more beer required

Perhaps you could create this wiki page:

and upload sample files to crack to there (tiny and small ones, please)?

> I am moving on to adding support for zip archives and FileVault stuff.

Sounds great.

Thanks again,


Powered by blists - more mailing lists

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.