HD-DVD and Blu-Ray Protections Fully Broken

gEvil (beta) writes "According to an article at BoingBoing, the processing keys for the AACS encryption scheme used by both HD-DVD and Blu-Ray video discs have been extracted, and a crack has been released. What this means is that there is now a method to extract the copy-protected content of any HD-DVD or Blu-Ray disc out there. This is different from Muslix64's previous crack, which only extracted the volume key for each disc. This new method bypasses this step and allows anyone to extract the data without first requiring the volume key."

Comments

Can this be fixed?

[CastrTroy]

Can this be fixed by revoking a player key? Or is this a more extensive breach like what happened with DECSS? Will this work on all future discs, or does it just work on the discs that are currently being produced?

Re:Not Really Broken

[TheRaven64]

Without double-checking, I believe the keys are only 128 bits, they could be loaded into the SSE registers in encrypted form and then decrypted on chip

Good thing Intel put in those nice debugging registers that let you dump the contents of SSE registers at arbitrary intervals (e.g. after every SSE operation by the debugged process).