From pvolcko@concentric.net Wed, 11 Aug 1999 10:11:28 -0400 Date: Wed, 11 Aug 1999 10:11:28 -0400 From: Paul Volcko pvolcko@concentric.net Subject: [LinuxDVD] CSS decryption Both the lists have calmed down considerably in the last couple weeks. I was wondering if there was any work being done still to reverse engineer the CSS decryption routines. Last I heard the assembly had been converted to C and that it had broken in the process (and that that was being worked on), but I haven't seen anything about it since. Anyone know whats happening with it or what software was being RE'd? Paul Volcko LSDVD Project
From mpav@purdue.edu Wed, 11 Aug 1999 10:11:55 -0500 (EST) Date: Wed, 11 Aug 1999 10:11:55 -0500 (EST) From: Matthew R. Pavlovich mpav@purdue.edu Subject: [LinuxDVD] CSS decryption > Anyone know whats happening with it or > what software was being RE'd? > Openprojects went down last week and they are still rebuilding. The css code has been converted to C and it has been tested to work. The cdrom patch has been the focus of recent work. The goal is to get the DVD ioctrl's in kernel 2.4, and it looks like it is going to happen. Matt
From axboe@image.dk Wed, 11 Aug 1999 17:27:08 +0200 Date: Wed, 11 Aug 1999 17:27:08 +0200 From: Jens Axboe axboe@image.dk Subject: [Livid-dev] Re: [LinuxDVD] CSS decryption On Wed, Aug 11 1999, Matthew R. Pavlovich wrote: > The cdrom patch has been the focus of recent work. The goal is to get the > DVD ioctrl's in kernel 2.4, and it looks like it is going to happen. Yes, it has happened. The 2.3.13 kernel contains much of it, minus the latest fixes. But I'll update it and keep the kernel current. -- * Jens Axboe <axboe@image.dk> * Linux CD-ROM Maintainer * http://www.kernel.dk
From pvolcko@concentric.net Wed, 11 Aug 1999 11:36:13 -0400 Date: Wed, 11 Aug 1999 11:36:13 -0400 From: Paul Volcko pvolcko@concentric.net Subject: [LinuxDVD] CSS decryption > Openprojects went down last week and they are still rebuilding. The css > code has been converted to C and it has been tested to work. Okay, thats cool. > The cdrom patch has been the focus of recent work. The goal is to get the > DVD ioctrl's in kernel 2.4, and it looks like it is going to happen. Does anyone know what the software was that helped produce the CSS authentication code thats been published thus far? Has anything been heard from the guy who released it, specifically is he still working on it? Good to see the ioctl's getting into the new kernel. I'm planning on testing out the patches in the next few days on my SCSI based system to see how things are working. I won't be able to put any time toward debugging and coding for it though as I'm busy with the LSDVD stuff. I'll report my success or problems with the patches though. They are meant to work with SCSI drives, correct? Paul Volcko LSDVD
From derek@spider.com Wed, 11 Aug 1999 17:53:51 +0100 Date: Wed, 11 Aug 1999 17:53:51 +0100 From: Derek Fawcus derek@spider.com Subject: [LinuxDVD] CSS decryption On Wed, Aug 11, 1999 at 11:36:13AM -0400, Paul Volcko wrote: > > Openprojects went down last week and they are still rebuilding. The css > > code has been converted to C and it has been tested to work. > > Okay, thats cool. There's a copy at www.eyrie.demon.co.uk/css/ if you want to see it. One change is needed with the above stuff (it's behind the CVS), and that is to change .key1 and .key2 in a couple of changes to .key in some of the test programs. It's fairly obvious when it fails to compile with the latest version of the cdrom patches. > > The cdrom patch has been the focus of recent work. The goal is to get the > > DVD ioctrl's in kernel 2.4, and it looks like it is going to happen. > > Does anyone know what the software was that helped produce the > CSS authentication code thats been published thus far? Has > anything been heard from the guy who released it, specifically is he > still working on it? No and No. I've heard a squeak that someone may be playing with the actual data decryption stuff but so far not seen any function code. > Good to see the ioctl's getting into the new kernel. I'm planning on > testing out the patches in the next few days on my SCSI based > system to see how things are working. I'd be curious to see what sort of AGID values you get, and if two consecutive runs give different AGIDs. On the ATAPI devide I've been using I always get the same AGID value (3) returned to me. DF -- Derek Fawcus derek@spider.com Spider Software Ltd. +44 (0) 131 475 7034