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AACS Not So Cracked After All - Page 12

post #331 of 603
Quote:
Originally Posted by archibael View Post

"I take back the things I said about Muslix64. I said he was probably a Blu-ray shill, but now I see the light and know that he is a kind-hearted format-neutral hacker who has everyone's best interests in mind."




I'm not sure it would be *exactly* like that
post #332 of 603
Quote:
Originally Posted by archibael View Post

"I take back the things I said about Muslix64. I said he was probably a Blu-ray shill, but now I see the light and know that he is a kind-hearted format-neutral hacker who has everyone's best interests in mind."


post #333 of 603
Quote:
Originally Posted by archibael View Post

"I take back the things I said about Muslix64. I said he was probably a Blu-ray shill, but now I see the light and know that he is a kind-hearted format-neutral hacker who has everyone's best interests in mind."


Every once in awhile here there is a post that really cheers me up after a long day.

- Tom
post #334 of 603
Muslix and his merry band of fair use brothers have just demonstrated playback of a burned Blu-ray disc, YouTube style.

I must compliment them in particular on their choice of music for this piece.
post #335 of 603
Quote:
Originally Posted by Low Roller View Post

Muslix and his merry band of fair use brothers have just demonstrated playback of a burned Blu-ray disc, YouTube style.

I must compliment them in particular on their choice of music for this piece.

The use of a continuous camera shot was a nice touch to convince us skeptics.

Just a thought, since he's using just the movie file and not the interactive menu system of the disc, wouldn't that make this less desirable on the part of many consumers?

I mean the HDi menus won't play with the LG BH100 hybrid player as it is basically doing the same thing, or does the Win DVD player or Power DVD player automatically properly use those menus if they are in the file structure?

If these copied discs won't have the HDi, BD-J, BD-Live menus and interactivity, that would seriously reduce common consumer interest in doing this.

Not to say this is at any way good, as HD copies can now be bit torrented until the player is revoked, and guys who just want to play the movie can copy one, and mass replicators can have had access to digital copies and .......oh cripe, nevermind..... this is still not good for the studios....

...no wonder why HD DVD is not releasing a lot of new titles now....
post #336 of 603
Quote:
Originally Posted by Kosty View Post

The use of a continuous camera shot was a nice touch to convince us skeptics.

Just a thought, since he's using just the movie file and not the interactive menu system of the disc, wouldn't that make this less desirable on the part of many consumers?

I believe the menu's didn't work in WinDVD from the original Blu-ray Disc either. Probably a WinDVD bug. He is going to test the burned movie on a PS3 when he gets a hold of one. That will be interesting!
post #337 of 603
from the news thread

Quote:
Originally Posted by sknight1 View Post

Interview with muslix64, Developer of BackupHDDVD

Will be interesting to see how The Industry responds...
post #338 of 603
Quote:
Originally Posted by lrbh View Post

I believe the menu's didn't work in WinDVD from the original Blu-ray Disc either. Probably a WinDVD bug. He is going to test the burned movie on a PS3 when he gets a hold of one. That will be interesting!

I've read that the PS3 will not be able to play non-AACS encrypted video off burned Blu-ray media, at least for a while. A future firmware upgrade should fix this, but I don't think this will be a high priority for Sony.
post #339 of 603
Quote:
Originally Posted by Low Roller View Post

I've read that the PS3 will not be able to play non-AACS encrypted video off burned Blu-ray media, at least for a while. A future firmware upgrade should fix this, but I don't think this will be a high priority for Sony.

that doesn't sound right. The PS3 has been shown to be capable of playing home recordable discs so if it recognizes the MPEG-2 , VC-1 or AVC stream it should work.

I pretty sure it can play a home made MPEG-2 file, why would a ripped Blu-ray movie file be any different. I don't think it has to have ACS to play.

Am I wrong?
post #340 of 603
Something about BDMV vs BDAV, I think. BDAV is more flexible and intended to be used for home video. BDMV contains menuing, etc. I seem to recall that BDAV burned to recordables needs no AACS, but that for BDMV the answer is more ambiguous. And BDMV is what is used for commercial movie releases, so if it's a straight copy with AACS stripped off it might not play, but if they've somehow stripped out the underlying MPEG-2 and audio and remuxed it into BDAV, there shouldn't be a difficulty.
post #341 of 603
Quote:
Originally Posted by archibael View Post

but if they've somehow stripped out the underlying MPEG-2 and audio and remuxed it into BDAV, there shouldn't be a difficulty.

IIRC AACS and ROM Mark are mandatory on every Bluray movie ROM. Are you saying a player would still play a ROM disc without AACS&ROM Mark given it is BDAV?
post #342 of 603
Quote:
Originally Posted by lymzy View Post

IIRC AACS and ROM Mark are mandatory on every Bluray movie ROM. Are you saying a player would still play a ROM disc without AACS&ROM Mark given it is BDAV?

Not at all. I'm talking about recordables only, and this is only what I've heard. I'm trying to suggest a possible rationale for why some players (the PS3 was mentioned by Low Roller) might not play cracked BDs directly burned to recordables: if they expect only BDAV on recordables and encounter BDMV, they could choke and fail. Realistically such limitations wouldn't be a barrier to inspired hackers, who would eventually find a way to "transcode" from BDMV to BDAV, but they could explain Low Roller's comments.
post #343 of 603
Quote:
Originally Posted by namechamps View Post

The amount of FUD spread is insane.

First of all there was no hacking on the encryption. The software was designed piss poor. The real world analogy would be a massive bank vault with the combination placed in plain view. There was no excuse for PowerDVD making such a stupid mistake. Encryption keys can and will be better protected.

Second BD-ROM Mark would not have prevented this "hack". The drive would have detected a valid ROM Mark and begun the hardware level decryption. The AACS stream would have been passed to the player and then the title key would have been grabbed. Same exact outcome. One the title is decrypted and stored on a HDD it can be burned to EITHER BD-R or HD DVD-R. Both systems would simply look at the recordable disc as a user created disc and playback without issue.

Lastly 128bit encryption has 2^128 possible values (not 128 billion). Brute force simply will not work on AACS (which is based on AES). Given a computer than can try 1 trillion possible values per second (well beyond current computational abilities) a computer would need 5,395,141,535,403,010,000 years working 24/7 to try just 50% of the possible codes. Given a network of 1 million such computers (each trying 1 trillion codes per second) it would take still nearly 5 billion years just to try half the possible solutions. If AES can be cracked on a home PC in our lifetime we have some huge problems. AES is used to protect everything from banking interchanges, nuclear missle launch codes, and classified documents.

Let's get the facts straight before this thread goes any further. This is not a hack of AACS rather it shows a sloppy implementation by a vendor. AACS was designed to heal around such an issue. First a new version of powedvd will be created. This version will protect the cryptographic data. Next a new AACS device key will be created for the new version. Next the old version's device key will be added to the blacklist. The old version will not be able to decrypt future movie releases.

The only titles affected are the 150 or so HD DVD titles (plus any currently in the pipeline). If the exploit affects the BD version also (which we don't know yet) then it would affect the 100 or so BD titles. All future titles can be protected by creating a new version of the software that solves this flaw. Even the at most 250 affected titles can be encrypted with new title keys and new device keys which would prevent their decryption on the old software. Once the movies who have their title keys revealed have sold out and/or recalled by the studios they will be replaced with the same movie having new titles keys and a new device blacklist.

This is exactly the kind of issue that AACS was designed to handle. If handled quickly and properly it can show the studios that AACS is indeed robust enough to handle exploits from faulty software.

So if my stand alone player has its software key revoked then well you see where i am going, I would not be able to watch future movie w/o a firmware update. The AVERAGE consumer cant do that on their PC let alone a dvd player.
post #344 of 603
AACS says keys in the wild

http://www.aacsla.com/press

Quote:


RESPONSE TO REPORTS OF ATTACKS ON AACS TECHNOLOGY

AACS LA has confirmed that AACS Title Keys have appeared on public web sites without authorization. Such unauthorized disclosures indicate an attack on one or more players sold by AACS licensees. This development is limited to the compromise of specific implementations, and does not represent an attack on the AACS system itself, nor is it exclusive to any particular format. Instead it illustrates the need for all AACS licensees to follow the Compliance and Robustness Rules set forth in the AACS license agreements to help ensure that product implementations are not compromised. AACS LA employs both technical and legal measures to deal with attacks such as this one, and AACS LA is using all appropriate remedies at its disposal to address the attack. AACS was designed to address a number of potential attacks with minimal impact using a variety of means including the ability to renew or upgrade players.
post #345 of 603
Quote:


First of all there was no hacking on the encryption. The software was designed piss poor. The real world analogy would be a massive bank vault with the combination placed in plain view. There was no excuse for PowerDVD making such a stupid mistake. Encryption keys can and will be better protected.

There was a front page story in the business column of the L.A. Times today. The title of the story was "Hackers find key to DVD piracy", and here is the first paragraph of the story:

Quote:


The much-vaunted anti-piracy protection on the next generation of DVDs has been cracked, leaving films in the new high-definition formats vulnerable to copying.

So, here you have a very respected, depending on whom you talk to, newspaper where the first line of the story says the piracy pretection has been cracked. Namechamps earlier quote I believe completely misses the point. I use his analogy of the bank vault where the combination was in plain view. While the thieves may not have laboriously picked the lock, they still managed to get away with the money. It is no consolation to the back that the thieves didn't "crack" the lock. Their money is gone, end of story.

While I can appreciate the wonderful technical details concerning how the piracy protection hasn't been cracked, and how the system is working as designed, it doesn't change the fact that the raw data for the HD-DVD movies is out on the file sharing sites. The big picture there being that those 150 or whatever movies are essentially out in the public for general consumption. Yes, yes, yes, I know it takes a gazillion hours to download at 1,200 baud, and it costs hellacious amounts of money to store on a hard drive, and I even know that it isn't economical to transfer them to burnable HD-DVD's. All the trends concerning the pricing of all those are working in the wrong direction for the content providers however.

I guess the movies are only playable on a software player, and not on a regular HD-DVD hardware, once they have been burned onto a writable disk? Not sure about that, anyone know? If those burned disks can play on a hardware player without problems, it really is bad news.

Robert
post #346 of 603
Quote:
Originally Posted by rnowicki View Post

....Namechamps earlier quote I believe completely misses the point. I use his analogy of the bank vault where the combination was in plain view. While the thieves may not have laboriously picked the lock, they still managed to get away with the money. It is no consolation to the back that the thieves didn't "crack" the lock. Their money is gone, end of story.
....
While I can appreciate the wonderful technical details concerning how the piracy protection hasn't been cracked, and how the system is working as designed, it doesn't change the fact that the raw data for the HD-DVD movies is out on the file sharing sites. The big picture there being that those 150 or whatever movies are essentially out in the public for general consumption. Yes, yes, yes, I know it takes a gazillion hours to download at 1,200 baud, and it costs hellacious amounts of money to store on a hard drive, and I even know that it isn't economical to transfer them to burnable HD-DVD's. All the trends concerning the pricing of all those are working in the wrong direction for the content providers however.

I guess the movies are only playable on a software player, and not on a regular HD-DVD hardware, once they have been burned onto a writable disk? Not sure about that, anyone know? If those burned disks can play on a hardware player without problems, it really is bad news.

Robert

Couple of points.

1) I think the title of th thread is wrong. Not only can are AACS keys easy to aquire on xp with a couple of software players, it is not really possible to stop this on vista. An even biger problem for AACS is that that keys can be taken from stand-alone players as well. You can get a memory dump from a stand alone player. It requires some equipment and knowledge, but this is not something everyone needs to do, only the volume keys need to be seeded to the wild. Revocation of player keys based on publication of title keys is unworkable.

2) I think the analogy of the bank vault is problematic. This process is not illegal everywhere, it is not illegal in all cases, and in many many cases it is certainly not unethical or equal to theft.

Do you realize the net consumer investment in non hdcp dvi monitors is probably in the hundreds of millions of dollars? Perhaps a billion dollars? If a person purchasing hd material wishes to view this material on their set it does not mean they are going to sell or seed the material to others. If a person rents it for one time viewing it is also hard to justify an analogy to taking from a bank vault.

In a third case a person wishing to back up their purchase is also not in the same ethical category as a thief, pirate, bank robber and that hyperobole by the content industry is part of why they are not taken seriously.

3) your point on both net speeds and storage costs is well made. To expand it further HD DVD and Blu-Ray are well behind were SD DVD was in both those areas at the same time in product marketing. HD and Blu Ray films are about 25 gb. This is roughly five times the file size of SD. Early adopters buying SD DVD's when they were first introduced could well have been early adopters of fast consumer net connections and may have had 128k ISDN which was contemprary to early SD. Burner at the time were about $900 and dvdr media cost about 25 times what it costs today. HDD media cost about 25 times as much as well. Moderate consumer broadband is now 3 to 5 mps (25 to 40 times as fast as isdn), HDD storage is $0.25 a gb. and dvdr burners are $25-$30 and dvdr5 media costs about $0.25 ($0.06/gb).

The math is simple. The increase in size did not take us back ten or even five years relative to SD. It went back about two years. The protection method is eroding not just faster but incredibly faster than SD DVD.

Lastly I would say I very much support very tough enforcement against persons who pirate material onto the market. This is a very different thing than making assumptions a) about the natural inclination to disassemble something, made even more tempting by its categorization as illicit, b) or categorizing the many people with perfectly ethical reasons to strip the protections off of material for their own use after they have bought, or in some cases rented the material.
post #347 of 603
Quote:
Originally Posted by Kosty View Post

in Kevin Collins of Microsoft interview

http://www.thedigitalbits.com/articl...07htfchat.html

AACS requires that they have their key renewed every 90 days. In this instance, if the software player was breached, the key will have to be renewed and that would be when the player is corrected.


This is the first I heard of this requirement.

I have not following this that closely, but has this discussed?

Unfortunately Kevin misspoke. AACS requires that players that utilize proactive renewal must update the keys once every 18 months.
post #348 of 603
I guess the playing field is leveled now: First Blu-ray rip out.
post #349 of 603
Are we ever going to change the thread title?

- Tom
post #350 of 603
Quote:
Originally Posted by trbarry View Post

Are we ever going to change the thread title?

- Tom

I'm waiting for Muslix to release a full version that can handle Volume keys - I'm not sure why he's taking so long with that...
post #351 of 603
This is a bit OT, but I would love to see video of the Microsoft Vista launch press conference from Romania.
post #352 of 603
Apparently Volume ID has been found...

Like dominoes.....lol

http://forum.doom9.org/showthread.php?t=121866
post #353 of 603
Quote:
Originally Posted by Scotty6595 View Post

Apparently Volume ID has been found...

Like dominoes.....lol

http://forum.doom9.org/showthread.php?t=121866

Not so fast. Finding volume keys is not the problem.

Muslix has not given the ability for the Bluray version to be able to utilize these volume keys to decypt bluray discs, as he did with the HD version.

So my commentary stands...
post #354 of 603
Actually I wasn't attempting to refute your commentary...lol

My interest lies with HD-DVD. Maybe I should append my remarks with "HD-DVD"...

This has got to be the jumpiest thread on AVS...lol
post #355 of 603
Commentary on endgadgethd:

Hackers discover HD DVD and Blu-ray "processing key" -- all HD titles now exposed

Quote:



[...]

DRM hacker arnezami has found the "processing key" used to decrypt the DRM on all HD DVD and Blu-ray Disc films.

Let's break this down for what it is: instead of needing individual keys for each and every high-definition film -- of which there are many -- the processing key can be used to unlock, decrypt, and backup every HD DVD and Blu-ray Disc film released so far.

As arnezami points out, "nothing was actually hacked, cracked or even reverse engineered." All he had to do was keep an eye on his memory, watch what changed, and voila... the processing key appeared. [...]
post #356 of 603
No wonder Universal and Fox have delayed releases.
post #357 of 603
Quote:
Originally Posted by Kosty View Post

No wonder Universal and Fox have delayed releases.

Did Universal delay releases?
post #358 of 603
Quote:
Originally Posted by Kosty View Post

No wonder Universal and Fox have delayed releases.

Doubt it. That happened way before this and the fact that this affects both formats does not help them to stay safe from it.
post #359 of 603
Note by the AACS LA on its website:

Quote:


Regarding the reported attacks on 2/13/2007, AACS has confirmed that an additional key (called a processing key') has been published on public websites without authorization. This is a variation of the previously reported attack (a compromise of a specific implementation) on one or more players sold by AACS licensees. Although a different key was extracted, this represents no adverse impact on the ability of the AACS ecosystem to address the attack. All technical and legal measures applicable to the previously reported attack will be applicable against this attack as well.

DVD file has posted an editorial filled with anger:

The HD Disc Hacks - A few depraved criminals risk spoiling it for us all
post #360 of 603
Woah that article seems to imply that this AACS crack has the possibility of slowing down any future HD DVD or Blu-ray software releases.

That would be really really really bad.
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