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Re: Circumventing/Emulating Fritz-chips

From: Jonathan S. Shapiro
Subject: Re: Circumventing/Emulating Fritz-chips
Date: Tue, 09 May 2006 09:31:00 -0400

On Tue, 2006-05-09 at 11:39 +0200, Pierre THIERRY wrote:
> Scribit Farid Hajji dies 08/05/2006 hora 17:29:
> > We're talking Fritz-chip here, right? Its specs are available; and you
> > can code against that specification.
> But there is a secret pair of cryptographic keys in there, which no
> reverse engineering or spec can directy show.

It is true that there is a secret key inside.

There is some reason to believe that the key can be extracted at a cost
between $10,000 and $20,000 (US) in the current deployments. Note that
this is the cost to crack **one machine**, not the entire scheme.


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