http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/ Engadget Comments for AACS DRM cracked by BackupHDDVD tool? http://www.engadget.com/media/feedlogo.gif http://www.engadget.com en-us Copyright 2008 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 6:32PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/The soundtrack is the song from Matrix Reloaded. The scene where Neo fights the lil asian dude in the teahouse. From memory I think the song is actually called Teahouse but no idea who did it.
:)]]>Dec 27th 2006 7:53PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 6:35PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 6:35PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
AACS is encryption, Its done with a well known scheme that the author's code simply follows. The issue is that the disc decryption keys for each disc must be know. These keys are themselves encrypted on the HD-DVD and must be decrypted by the playing application before use. Each HD DVD Playing applications have their own keys to decrypt the disc encryption keys off of the disc. The issue is that someone has found a way to steal the decrypted disc encryption keys out of some player which is probably not terrably good at hiding them once it decrypts them. I believe AACS even has multiple player keys so they can disable whatever app is out there that is easy to steal keys from.

http://en.wikipedia.org/wiki/AACS

"The specifications for the product have been publicly released (as of April 2005)."
]]>Dec 28th 2006 10:06AMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 7:02PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 7:02PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
Dunno how to play it, but I guess you can youtube that too ;)]]>Dec 28th 2006 7:23AMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/As I recall, the studios can just change the encryption, or the key or something, so the cracking gets rendered useless.
(they did this after deCSS]]>Dec 27th 2006 7:07PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 7:11PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
Now, where will these pretty files end up showing up for "private" use? haha, Viva La Blu-Ray!]]>Dec 27th 2006 7:30PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 7:52PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 11:52PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
When is the man ever gonna learn that no matter what sort of copyright protection scemes he dreams up, the people will find a way to circumvent them?]]>Dec 27th 2006 8:31PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 7:54PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
So, you can decrypt the DVD if you know the key. This was *always* the case. Everyone knows this. (Everyone with a clue anyway).
In short, this is nothing.

CSS (for DVDs) was different in two ways: 1. The device key couldn't be easily revoked 2. The encryption was weak so that the key could be generated automatically. That's how/why CSS was broken.

AACS suffers from neither of these weaknesses and AACS has not been broken.]]>Dec 27th 2006 8:15PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Jan 4th 2007 1:10AMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
A case of sour grapes? (You work for the MPAA – don’t cha’) They said the same thing about CSS + DVD’s, and look what happened there. LIVE with it.
]]>Jan 2nd 2007 5:07AMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/How long has this been the trend now?
There's nothing they can do about it.
Sure they can change the encryption, but with HD-DVD players already out there is only so much the encryption can be changed. They couldn't come up with a brand new scheme. Can't screw over all the early adopters. ]]>Dec 27th 2006 8:18PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
Also to those singing praises to Blu-Ray for still being intact...it will happen and when it does the net result will be the same.]]>Dec 27th 2006 8:26PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Jan 3rd 2007 4:50PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 8:30PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 8:58PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
Each player has a different Device Key.

Keys can be revoked, meaning that they wont be able to decrypt new titles produced after revokation. This means that as soon as a key is published, it will be revoked.

Software players normally have Device Keys that expire and are renewed after a set time. This is presumably done because they cant hide thing in software as well as they do in hardware.

So software players and hackers are going to play cat and mouse for a while, the software company trying to hide the key better every time, and the hackers trying to find them out.

It is certainly going to be possible for a determined hacker to get the decrypted compressed video stream, but its not going to be as easy as CSS.

IE: dont expect standalone AACS ripper anytime soon. More likely you will see "Add-ons" for PC software players, and it will be difficult to make them work very reliably. Think of the PC software as a mine field, rather than a safe...






]]>Dec 28th 2006 4:28PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
Think of what DVD has become since CSS was broken. We can now transcode DVD's to divx to store on a media center PC networked with any devices in the house in any format, we can put DVD's on our ipods/PMP's / PDAs and can make backup copies.

Since the actual Title encryption key was ripped from memory this isn't about revoking a player's key I think. Even a revoked player should be able to decode the volume/title keys. All it takes is one player software and some unprotected memory (Thanks Windows XP, it may be a LOT harder in Vista)]]>Dec 27th 2006 8:58PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
You left out, "And we can pirate to our heart's content."
There are legit "fair use" reasons for cracking DRM, but let's not pretend that 99% of the use for cracking DRM is pirating.
]]>Dec 28th 2006 1:34PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
They'll drag their feet a little on countering this.

Now, once the movie is ripped, does it still require all the HDCP compliant hardware for the high-def goodness? ]]>Dec 27th 2006 9:08PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 10:11PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
Does this work with a 360 HDDVD drive? I'd love to be able to backup my HDDVDs since some of them are hard to find (Enter The Dragon, anyone?)]]>Dec 27th 2006 9:27PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 9:28PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
There are using 128 bits AES all over the place, and so far nobody is able to "brute-force" this in a few hours. Maybe the NSA can do it in a few weeks.

From a crypto stand point, AACS is sound. The specs are publically available, so you can go read them, and I'm sure a lot of cryptographer went to read them and as far as i know, nobody could find a fundamental issue that would break AACS apart.

The issues with AACS are all the key infrastructure: how to keep the device key secret, how to revoke keys etc...


]]>Dec 28th 2006 4:30PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 9:29PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
The biggest part is that most people's home computers now use DVI for a nice LCD flat panel. You can't play HD DVD over it because 99% chance both your monitor and your video card don't support HDCP.

If you can decode HD DVD's that you buy to play on your home computer without buying hundreds of dollars of new hardware I can see those x360 drives flying off shelves for people without a 360.]]>Dec 27th 2006 9:42PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.console-news.org/v3.php?id=131 ), but they haven't been able to play the backups back AFAIK... matter of time, everything is just a matter of time (and work... also china helps).

- Tony R.]]>Dec 27th 2006 9:53PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 28th 2006 12:09AMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 9:54PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
Quite frankly, I feel it's a bunch of BS that I should have to pay full price for the HD version of movies I already have. Hell, a $5 trade in cert for each movie would go a long way toward me buying the HD version of the ones I already own and even then, they better be less than $20 retail at the time of the $5 gratuity on behalf of the movies industries and publishers.]]>Dec 27th 2006 9:55PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
Um, that's because you used COMP to compare the files. Read your screenshot: "10 mismatches - ending compare"]]>Dec 27th 2006 10:15PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 27th 2006 11:14PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
try the free xvi32 hex editor's compare feature]]>Dec 27th 2006 11:15PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
This means bonus points for Blu-Ray (studios will like it because of the extra content protection), and consumers will be ready to lynch HD-DVD companies for destroying their hardware (lots and lots of BAD PR).

I've bought-into neither format yet, so I'm going to sit back and enjoy the fireworks...]]>Dec 27th 2006 11:16PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
Even a terabyte drive can only hold 50 20GB movies.
That is horrible.

Vongo has DVD resolution movies at about 1GB for 2hr films.
Compress the HD movies to 2.5 GB and I'm there.

There is a long way to go before this is relevant.]]>Dec 27th 2006 11:47PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 28th 2006 7:29AMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Even with a method to crack the DRM on HD-DVD, I think pirating HD video is going to be very difficult for the majority of the world...
I wouldn't dream of Torrent-ing a 35Gb file down my DSL 1.5 mbit connection... I attempted to Torrent 16gb worth of old Lost in Space Episodes and I gave up after a week... My Internet connection would be completely clogged up for a full month to download a file of that size. It would cost the same amount (DSL cost) and a month to pirate a HD video. I would rather spend $25 and just buy the video so I could watch it now... Not in a month...
Logistically, pirating HD video is going to be a challenge...]]>Dec 27th 2006 11:51PMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
of course the MPAA would never admit it if that were the case.

hopefully within weeks high def discs will be as easily copyable as DVDs, and yet again the DRM can be proven to be a pain in the ass for legit consumers while doing nothing to stop piracy. wee!]]>Dec 28th 2006 12:07AMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
I always thought the main application of ripping was that you could stroll into Blockbuster / Netflix, rent a crapload of movies, rip and burn them, and they're then yours for an amount MUCH lower than buying it? Sure, you COULD download, but how many people are really doing that?]]>Dec 28th 2006 12:09AMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 28th 2006 3:17AMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Dec 28th 2006 12:32AMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/Compress the HD movies to 2.5 GB and I'm there."

are you stupid? the video resolution alone is 5x higher in HD, not to mention that Vongo's videos are not 5.1 and a big selling point of HDDVDs is the extra content (case in point - Fast and Furious: Tokyo Drift, Enter The Dragon)]]>Dec 28th 2006 1:45AMhttp://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/http://www.engadget.com/2006/12/27/aacs-drm-cracked-by-backuphddvd-tool/
-JimXugle]]>Dec 28th 2006 1:59AM