HD-DVD's DRM encryption hacked!

[dragontail]

Apparently, some guy's already been able to crack HD-DVD's encryption within a couple of days! So much for being impossible to hack then! Quoted from the doom9 forums:

[Link to original thread ]

Hi everyone.

I was not aware of anyone having done that, so I did.
BackupHDDVD is a tool to decrypt a AACS protected movie that you own, so you can play it back later using
an HDDVD player software.

This is the first version, and it's not very stable yet.

This software don't provide any cryptographic keys, so you have to add your own keys.

Watch:

http://www.youtube.com/watch?v=_oZGYb92isE

Executable and source code:
http://rapidshare.com/files/8318838/...HDDVD.zip.html

Please read the FAQ before asking me any questions.

Merry Christmas everyone!

The Saga of decrypting an AACS protected movie, by Muslix64.

December 6:

I just bought a HD-DVD drive to plug on my PC, and a HD movie, cool! But when I realized the 2 software
players on windows don't allowed me to play the movie at all, because my video card is not HDCP compliant and because I
have a HD monitor plugged with DVI interface, I started to get mad... This is not what we can call "fair use"! So I
decide to decrypt that movie. I start reading the AACS specification I have found on the net. I estimate it will take
me about 4 weeks of full time job to decrypt that. I was wrong, it was in fact, easy...

BTW, when I disable my HD monitor, I can watch the movie,on my old VGA screen, but, what is the point of having
a HD monitor and not being able to watch a HD movie on it!

December 7 to December 12:

Nothing, I try many things, but I'm going nowhere. I change my technique

December 13:

Now I focus only on title key. I was very surprise to realize that the title key is there, in memory! Can it be
that easy? Around 7PM, I decrypt my first movie "pack". Around 11PM, I have now a totally decrypted movie! But there is
a problem. Frame skipping.

December 14:

After many tests, I found a field in the Nav pack, that fix the frame skipping problem.
Wow! Now I can watch a smooth playback of an HDDVD film that I have decrypted!
After only 8 days of work, I was able to decrypt an HD-DVD movie! What's the problem? There is a major
security problem somewhere.

December 15 and December 16:

I put together a small program called "BackupHDDVD", a java based command line utility to decrypt movies.

December 17:

I made a small video called "AACS is Unbreakable" where you can see the output of the program while decrypting.
You can also see a playback of a decrypted movie.


December 18:

Upload that video on YouTube
http://www.youtube.com/watch?v=_oZGYb92isE

December 20:

Upload the program and source code on RapidShare (V0.99)
http://rapidshare.com/files/8318838/...HDDVD.zip.html

December 21:

I want to go further in the decryption, so I decide to track down the "Volume unique key" instead of title key.
I found it also! I'm preparing BackupHDDVD V1.00, that will support volume key and title keys.

December 25:

Merry Christmas!

December 26:

I create a thread on the Doom9 forum about BackupHDDVD. People don't believe it...

Your thoughts?

[atanum141]

Simply Beautiful.....

[DougEdey]

HD-DVD has even less chance of becoming mainstream now, the studios won't take it up, he shoulda sat on it for longer

[Bindibadgi]

Originally Posted by DougEdey

HD-DVD has even less chance of becoming mainstream now, the studios won't take it up, he shoulda sat on it for longer

Pff, they've already commited and got the contracts out for the most part, plus HDDVD drives have the ability to upgrade the key.

It's only because BRDVD drives are so expensive that they haven't got into the hands of those who look into this kind of thing and I doubt BR media is much different. Give it another 6 months and that'll be cracked too. As it is, all HD content is freely avaliable on the net already if you know where to look, they've already failed.

[DougEdey]

Well currently the Keys are encrypted on the Discs, if you look at engadget they do a comparisson between the encrypted and the un-encrypted file, theres about 10 differences.

But no-one has got video proof of it working, independant that is.