Search results for: “aacs”
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Blu-Ray Tries to Out-DRM HD-DVD
Blu-Ray, one of the two competing next-gen DVD standards, has decided to up the ante by adopting even more fruitless anti-copying mechanism than the rival HD-DVD system. Blu-Ray will join HD-DVD in using the AACS technology (with its competition-limiting digital imprimatur). Blu-Ray will add two more technologies, called ROM-Mark and BD+. ROM-Mark claims to put…
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HD-DVD Requires Digital Imprimatur
Last week I wrote about the antitrust issues raised by the use of encryption to “protect” content. Here’s a concrete example. HD-DVD, one of the two candidates for the next-gen DVD format, uses a “content protection” technology called AACS. And AACS, it turns out, requires a digital imprimatur on any content before it can be…
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CDT Closes Eyes, Wishes for Good DRM
The Center for Democracy and Technology just released a new copyright policy paper. Derek Slater notes, astutely, that it tries at all costs to take the middle ground. It’s interesting to see what CDT sees as the middle ground. Ernest Miller gives the paper a harsh review. I think Ernie is too harsh in some…
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Next-Gen DVD Encryption: Better, but Won't Stop Filesharing
Last week, specifications were released for AACS, an encryption-based system that may be used on next-generation DVDs. You may recall that CSS, which is currently used on DVDs, is badly misdesigned, to the point that I sometimes use it in teaching as an example of how not to use crypto. It’s still a mystery how…