Posted by Jeff Rife on 12/23/84 11:27

Alpha (none@none.net) wrote in alt.video.dvd:
> You are naive. The codes will change hourly according to a complex
> algorithm.

It will be unlikely to be that complex, seeing as how a disc will have
to have a decryption key that works with every player. But, the system
doesn't *need* to be that complex to be unbreakable within the useful
lifetime of the product. An automated key exchange public-key encryption
system would work just fine, and is easy to build (since it's already been
done many times).

> This is air tight.

If designed correctly, yes it is. But then "air tight" will also be a
good description for the way the players with this requirement will be
sealed inside retail stores.

--
Jeff Rife | "I'm reading a great John Grisham novel...it's
| about a young Southern lawyer who fights an
| evil corporate giant."
| -- Dick Solomon, "3rd Rock from the Sun"

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