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Old 5th February 2007, 22:42   #20  |  Link
noclip
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Join Date: Dec 2006
Posts: 154
Quote:
Originally Posted by madshi View Post
What would stop studios from using a different media key for every disc?
The logistics of revocation. Essentially, every time a revocation happens a new MKB is issued which can't be decrypted by the revoked devices.

They may be able to change the MKB so that all current device keys are still valid, but then they risk an easy attack on their root key, which will have them running for the hills.
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