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Re: Cryptography Research wants piracy speed bump on HD DVDs

daemon@ATHENA.MIT.EDU (John Kelsey)
Wed Dec 22 15:49:31 2004

X-Original-To: cryptography@metzdowd.com
X-Original-To: cryptography@metzdowd.com
Date: Wed, 22 Dec 2004 12:38:10 -0500 (GMT-05:00)
From: John Kelsey <kelsey.j@ix.netcom.com>
Reply-To: John Kelsey <kelsey.j@ix.netcom.com>
To: iang@systemics.com, cryptography@metzdowd.com

>From: Ian Grigg <iang@systemics.com>
>Sent: Dec 15, 2004 12:08 PM
>To: cryptography@metzdowd.com
>Subject: Re: Cryptography Research wants piracy speed bump on HD DVDs

...
>A blockbuster worth $100m gets cracked ... and
>the crack gets watermarked with the Id of the
>$100 machine that played it.

Think about the effect on P2P systems, if having one extracted movie from your player available for sharing meant that your player would stop working for all new content....  

I'm not saying I think this (or any other technical solution I've seen) will work.  I'm saying that it's a pretty reasonable attempt to undermine participation in P2P systems.  

>iang

--John

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