He got the device key from one of the software players that exist. I believe it was WinDVD based on the screenshots from his test video. From there, you can publish encryption keys for any disk you're able to find. However, it's a catch-22 from here on out: If you publish the player key, they can revoke that key from future discs being published. If you publish the content key, then the content can be reencrypted with a new key for future publishings of the movie. Basically, unless the AES algorithm is cracked (which doesn't look to be any time soon), AACS LA always has an option to stop any compromises of a player or disc.
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Tim Dorr @ Jan 3rd 2007 7:50PM
He got the device key from one of the software players that exist. I believe it was WinDVD based on the screenshots from his test video. From there, you can publish encryption keys for any disk you're able to find. However, it's a catch-22 from here on out: If you publish the player key, they can revoke that key from future discs being published. If you publish the content key, then the content can be reencrypted with a new key for future publishings of the movie. Basically, unless the AES algorithm is cracked (which doesn't look to be any time soon), AACS LA always has an option to stop any compromises of a player or disc.