Fw: Jeff Lotspiech, IBM * Content Protection * W4:15 Gates B03

From: Bill Humphries (bill@whump.com)
Date: Tue Apr 03 2001 - 15:40:04 PDT

Oh, oh... it's the "Trust us..." talk.

----- Original Message -----
From: "ee380" <ee380@shasta.Stanford.EDU>
To: <colloq@CS.Stanford.EDU>
Sent: Tuesday, April 03, 2001 3:15 PM
Subject: Jeff Lotspiech, IBM * Content Protection * W4:15 Gates B03

> 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.
> Contact information:
> Jeffrey B. Lotspiech
> IBM Almaden Research Center DPEM/B3
> 650 Harry Road
> San Jose, CA 95120
> 408-927-1851
> 408-927-3497
> lotspiech@almaden.ibm.com
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