Patents as a security mechanism

Matthew Byng-Maddick cryptography at lists.colondot.net
Tue Jan 21 17:45:38 EST 2003


On Tue, Jan 21, 2003 at 11:02:25AM -0500, Matt Blaze wrote:
> One example close to home is the DVD patents, which, in addition to
> providing income for the DVD patent holders, also allows them to prevent
> the production of players that don't meet certain requirements.  This
> effectively reduces the availability of multi-region players; the patents
> protect the security of the region coding system.

Related to this, some years ago is the games console industry. The DVD
CCA is by no means the first to do such a thing.

MBM

-- 
Matthew Byng-Maddick         <mbm at colondot.net>           http://colondot.net/

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