Latest AACS Processing Key released

Latest AACS Processing Key released

Summary: The cat and mouse game between the hackers and the AACS Licensing Authority continues as the latest MKB v3 Processing Key is released onto the web.

TOPICS: Security

The cat and mouse game between the hackers and the AACS Licensing Authority continues as the latest MKB v3 Processing Key is released onto the web.

This latest key can be used to decrypt all newly released (and future releases, for a while at least) HD DVD and Blu-ray discs.  This public release of the Processing Key comes shortly after Slysoft released an updated version of AnyDVD HD which could defeat the MKB v3 copy-protection used on the latest titles.

New Processing Key

I'm noticing a shift in how the hacker community is working now compared to a few months ago.  Back when they started cracking AACS the community was open and posting details of how they were getting hold of the keys necessary to break AACS, now a shadow of secrecy has descended over the forums, as this quote by hacker arnezami shows:

I strongly advise everybody who knows how it was retrieved not to talk about it publicly.

This suggests to me that the hackers would rather not let the AACS LA know how they came across this key, probably so that a vulnerable software player isn't again revoked.

Yes, it does work Â…

So, MKB v3 has been defeated.  What next for AACS?  Well, I guess there are a number of options open to them.  They could decide to update the processing key again, or maybe next time AACS will release multiple keys rather than relying on the one.  Maybe Blu-ray discs will start to make use of the BD+ DRM mechanism.  Maybe the AACS LA will try something altogether new.  What I'm interested in knowing is how long AACS LA will keep up the fight before declaring AACS broken and allowing it to go the way of CSS for DVD. 

The battle between the hackers and the AACS LA could go on for years or it could be over in months.

Oh, and before you think of submitting this new Processing Key to Digg, it's already been done ...


Topic: Security

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  • The hackers have the upper hand

    [i]"The battle between the hackers and the AACS LA could go on for years or it could be over in months"[/i]

    It costs the AACS a lot of money and even more in credibility every time this happens. It merely costs the hackers some time.

    With that equation, the hackers are way ahead.....
    • It also cost consumers more money also...

      Because the cost of this will be passed along in the cost of the customer buying the product.
      The only way to win is not to play this game. And I refer to customers not playing the game, dont buy HD-DVD or Blu Ray products which contain AACS DRM .
      • I think that "fewer customers" is an inevitable result of "higher prices".

        So don't worry about it ;-). After all, it's not as if these products have gone "mainstream" yet anyway.
  • With every new crack of DRM

    Just more proof piled on that DRM in nothing but a pipe dream.

    DRM is like hiding your keys in a fake rock around your home and then telling everyone that the keys to your house are hidden.

    It is only a matter of time.
    • Actually it is worse than that..

      You tell them it is hidden in a rock. Remember all the HD-DVD player software has the key hidden somewhere inside it.
      • That's very accurate!

        That is very accurate, that comparison! All the DVD players have the key stored somewhere in them in a chip. All someone has to do is figure out how to read the chip's data..... BOOM! You've defeated the DRM scheme by getting the key!

        DRM is a pipe-dream of the worst kind, content manufacturers would be better spending their time on making things that people actually WANT to pay money to have the priveledge to see.
    • Interestingly enough though. Apple depends on DRM

      No, I'm not talking about the iPod, UnFairPlay, or iTMS, I'm talking about OSX. It is the TPM DRM chip that OSX checks in with before deciding to work that allows Apple to overcharge for their hardware. Take away DRM and Apple's business model crumbles... and crumbles fast.
  • BluRay Still Has an Ace in the Hole! Only HD-DVD is Broken! ;)

    This is precisely why Sony while developing consummer BluRay, reshuffled the deck, while at first delaying the PS3 and second by providing a backup system with BD+.

    When Push comes to Shove Sony decided to shove back and separate itself from it's competitor with this new BD+ Technology, that far outshines AACS!!!

    BluRay decided to go with a multiple layer of security, where you may break one or two, but it is highly unlikely you break all of them. On top of that it can be changed!


    BD+ is effectively a small virtual machine embedded in authorized players. It allows content providers to include executable programs on Blu-ray discs. Such programs can [14]:
    examine the host environment, to see if the player has been tampered with. Every licensed playback device manufacturer must provide the BD+ licensing authority with memory footprints that identifies their devices.
    verify that the player's keys have not been changed.
    execute native code, possibly to patch an otherwise unsecure system.
    transform the audio and video output. Parts of the content will not be viewable without letting the BD+-program descramble it.

    If a playback device manufacturer finds that its devices have been hacked, it can potentially release BD+-code that detects and circumvents the vulnerability. These programs can then be included in all new content releases.

    The specifications of the BD+ virtual machine are only available to licensed device manufacturers.

    BD-ROM Mark

    The BD-ROM Mark is a small amount of cryptographical data that is stored physically differently from normal Blu-ray data. Bit-by-bit copies that don't replicate the BD-ROM Mark are impossible to decode. A specially licensed piece of hardware is required to insert the ROM-mark into the media during replication. Through licensing of the special hardware element, the BDA believes that it can eliminate the possibility of mass producing BD-ROMs without authorization.

    Mandatory Managed Copy

    Blu-ray Disc also mandates a Mandatory Managed Copy system, which allows users to copy content a limited number of times, but requiring registration with the content provider to acquire the keys needed; this feature was originally requested by HP. End Quote!
    • Eff that...

      I'm never buying Blu-Ray.
      • I've Heard That About a Million Times!

        You will when it's the only format left in 5yrs! Dedicated M$ Xbot or Not! hehe