[linux-elitists] CPRM talk - IBM Almaden Research Center, TODAY, Wed, Apr 4, 4pm

Karsten M. Self kmself@ix.netcom.com
Wed Apr 4 10:52:43 PDT 2001


Forwarded through a friend, just received this.

Anyone interested in attending with me?

> Computer Systems Laboratory Colloquium
> 4:15PM, Wednesday, April 4, 2001
> NEC Auditorium, Gates Computer Science Building B03
>
> Title: Content Protection for Recordable Media
>
> Speaker: Jeffrey B. Lotspiech
> IBM Almaden Research Center
>
> About the talk:
>
> Content Protection for Recordable Media, or CPRM, is a technology
> developed by IBM, Intel, Matsushita, and Toshiba to provide copy
> protection on portable media. The technology allows a recorder to
> record encrypted content, and a player to play it back, without having
> any keys in common. The media acts as a passive oracle to allow the
> different boxes to come to the same cryptographic key.  In contrast,
> previous copy protection technologies like the one used for DVD video,
> depended on shared keys between the mastering studio and the players,
> with predictable results. As soon as a 16-year-old in Norway found one
> shared key, the system was effectively broken: there was no way to
> exclude the broken key from the system without hurting too many
> innocent consumers. In contrast, CPRM can survive thousands of
> independent attacks, and exclude millions of circumvention devices,
> without any chance of innocent consumers being affected.
>
> Recently, articles have appeared in the press that CPRM will be
> standardized on all PC hard drives. This has fueled Orwellian mages of
> a Big Brother chip on your PC that will decide whether your files are
> worthy of being copied. This is complete nonsense.  CPRM would never
> be standardized, nor have we ever proposed such a thing. CPRM strength
> is portability and interchangeability and it is mismatch for fixed
> hard drive. It is completely passive, requires no hardware, and can
> only be exploited by newly-designed applications. It cannot possibly
> affect existing files or applications. How these myths came about, and
> persist, was an object lesson for a media-naive researcher.
>
> About the speaker:
>
> Jeff Lotspiech is the manager of the Content Protection Technology
> Group at the IBM Almaden Research Center. He has a BS and MS in
> Computer Science from MIT, 1972. He has been working on content
> protection technologies, both the Internet and media, for the last six
> years

-- 
Karsten M. Self <kmself@ix.netcom.com>    http://kmself.home.netcom.com/
 What part of "Gestalt" don't you understand?       There is no K5 cabal
  http://gestalt-system.sourceforge.net/         http://www.kuro5hin.org
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