A method to fully crack the Advanced Access Content System (AACS) has been found, according to some media reports and forum posts, which means that it is now possible to extract copy-protected content from Blu-ray discs (BDs) and HD DVDs and copy it without compromising quality. Earlier it was possible to copy only limited amount of movies, which AACS keys had been leaked.
While it is still not completely clear how AACS works, certain documents that are publicly available, such as “Introduction and Common Cryptographic Elements” gives some ideas that Doom9 forum member, who identifies himself as Arnezami, used to create a method for decrypting both Blu-ray and HD DVD movies.
The AACS copy protection system implemented into current BDs and HD DVDs includes Device Keys, Media Key Block (MKB), Media Key, Processing Keys, Volume IDs and Volume Unique Keys (VUKs) among others. Previously the "crack" of the high definition video discs’ AACS was based on knowledge of the VUKs, which are needed to access the content, however, right now a way to calculate the VUK for every single disc has been found.
Arnezami has found a Processing Key, which should work on any BD or HD DVD, whereas Volume ID key appeared to be date and time of the disc production (e.g. Volume ID for King Kong movie is 09 18 20 06 08 41, which means that the date and time of its production is 09/18/2006, 08:41). Using the Processing Key and some other data, the BD or HD DVD device calculates the Media Key, which, when combined with the Volume ID, gives the Volume Unique Key (which are also referred to as "Title Keys") needed for decryption of the protected content.
Potentially, Arnezami’s discovery means that it is now possible to create a software that would calculate all the keys using publicly available algorithms, which means that, if AACS licensing agent (AACS LA) and content producers do not change the processing key and the Volume ID keys, all the future BD and HD DVD releases face possibility of replication using already available burners, sharing or even pirating.
“Most of the time I spend studying the AACS papers. A good understanding of how the things worked has helped me greatly in knowing what to find in the first place (and how to recognize something),” Arnezami wrote in a forum post, explaining how he managed to unlock AACS.
Comments currently: 35
Discussion started: 02/14/07 12:53:15 PM
Latest comment: 05/22/08 05:43:26 PM
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1.
Great with people like this, this is why DRM is everywhere. Go die you dumb fuck!
[Posted by: aerg | Date: 02/14/07 12:53:16 PM]
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Lol, dumbass. Just incredible.
[Posted by: Yuri | Date: 02/14/07 01:09:23 PM]
2.
No, the reason DRM is exists is to squeeze extra money from the consumer. I want to back up copy-protected VHS tapes onto my hard drive using a capture card. I can't because Macrovision gives me a green screen. I want to save VHS from my toddlers dropping them and give mom the ability to quickly scan and play them via the media center. But I can't.
I bought the damn content, NOT the format it came on. Why can't I decide how I play the content in my own house?
This is where DRM stops legitimate uses. But professional piraters don't care. Their aim is money and they will invest time and money into cracking this stuff anyhow.
DRM is what needs to be taken out and have "death by sandpaper."
[Posted by: Mark1 | Date: 02/14/07 03:08:44 PM]
3.
Great news I'm happy with this.
[Posted by: Sea Shell she sell | Date: 02/15/07 07:38:27 AM]
4.
Anyone know of the software for this yet? I'm very interested! thanks.
[Posted by: GWolfman | Date: 02/15/07 08:01:00 AM]
5.
When will "they" realize that copy protection is a waste of time. At the moment "copy protection" is really only a marketing item that provides a revenue stream to the protection providers. If the content owners could somehow get past the idea of paying for "copy protection" and instead use the revenue that they'd spend on copy protection to do some creative marketing, then they'd generate more return on their investment than they would by trying to defeat everyone who wishes to copy their products. They could create some totally new and innovative marketing ideas and that would pay much more then just trying to lock-up the data. It would mean less revenue per item (due to some copying and copyright losses) but more items in total generating more sales. That would lead to a bigger market penetration and create spin-offs in other areas like merchandising. More money in the end, if they'd just stop the whole copy protection racket.
[Posted by: Nanoagent88 | Date: 02/17/07 07:38:36 AM]
6.
Muslik64 has helped to crack the ACCS which causes slysoft to use the method to come out software to copy accs protected movies on HD DVD and blue ray.....:-))))))
[Posted by: Alan | Date: 03/01/07 08:04:28 AM]
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I've used a third-party Blu-ray/HD DVD Plug-in,and it works wonderful.I don't have a HDCP video card or HD monitor,but with this plug-in,i can copy my HD/Blu-ray disc to hard disk and watch them with PowerDVD. What's more, the Blu-ray/HD DVD Plug-in is totally free,you may download it at: http://www.copyhddvd.net and have a try.
[Posted by: Leu | Date: 10/27/07 06:21:51 AM]
7.
looks like the same old same old all over again it was silly to use end to end encryption with the hdcp thing that helped cause this de aacs mess in the first place. was it really neccessary to encrypt with hdcp all the way to the monitor? Does anyone know of a hi def recorder with component in hdmi in display port in or dvi in? didnt think so
[Posted by: deja vu | Date: 10/31/07 09:26:14 AM]
8.
just not to get confused aacs protects the file system on the disc hdcp protects the transport stream thats why Muslix 64 could not get his video to show on his screen via dvi because of this hdcp garbage even though the aacs on the disc itself was decrypted
[Posted by: deja vu | Date: 10/31/07 09:34:59 AM]
9.
The better solution-possibly the one that would be used in thr New Millenim-that 1000 year time of peace on this earth would be to use an advanced damage control system on every disc with all having a unique # code. any damaged disc would have to be repaired or transferred to the 2nd disc which would involve a 2 tray recorder/player before the disc got too damaged to salvage. that is if there were still movies-dont worry we wont miss them
[Posted by: deja vu | Date: 10/31/07 09:42:59 AM]
10.
This dream unit would have the option of adding 8 d batteries to eliminate the clutter of wires with your home theater system any such unit today would be crippled
[Posted by: deja vu | Date: 10/31/07 09:46:10 AM]
11.
Even if all the copy protection on this new media was cracked, I wont be holding my breath. Why should you have to have a laptop with hdmi out to your tv and slysoft software paired together with win hi def dvd software player just to be able to have a sure way of getting it to work?
[Posted by: deja vu | Date: 10/31/07 10:42:11 AM]
12.
-and I didnt even yet mention the cost of making sure you had a blu-ray burner and those blank discs
[Posted by: deja vu | Date: 10/31/07 10:44:54 AM]
13.
And dont forget that new display port connection that will use its own protection add on on top of hdcp-enough already-the content gets broken into at the disc file structure not at the transport stream
[Posted by: deja vu | Date: 10/31/07 11:56:59 AM]
14.
I couldnt agree with you more the more they cripple their products, the more people wont want to buy them
[Posted by: stud | Date: 10/31/07 11:58:04 AM]
15.
Dont forget the DMCA- Death Of Innovation By MPAA By Demand coming near you
[Posted by: fed up | Date: 11/01/07 04:35:16 AM]
16.
Do you remember that time when you had to have a player hooked up to a phone jack just to get the movie to play? Wasnt that at the time when DVDs just came out? What did they call it?
[Posted by: tired | Date: 11/01/07 04:40:09 AM]
17.
Garbage
[Posted by: smiley | Date: 11/01/07 04:41:58 AM]
18.
yup
[Posted by: deja vu | Date: 11/01/07 04:42:48 AM]
19.
Thems gold right there.
[Posted by: stud | Date: 11/01/07 04:43:50 AM]
20.
actually a more appropriate word is 4 letters and rhymes with trap the other starts with s but you get the idea
[Posted by: stud | Date: 11/01/07 06:43:56 AM]
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