Re: Physical access without ultimate power? (was Re: Design principles and ethics (was [...])))

[Jonathan S. Shapiro]

On Mon, 2006-05-01 at 06:03 +0200, Pierre THIERRY wrote:
> Scribit Bas Wijnen dies 30/04/2006 hora 22:50:
> > With this chip, it's possible to verify it technically, but this
> > results among other things in the fact that the machine owner can no
> > longer upgrade his machine in case a bug is found in the critical
> > parts.
> 
> Are you sure this statement is true? Isn't it just that as long as the
> new system is not given a certification, it won't be able to access data
> encrypted with the previous one?

Pierre is correct. You can reinstall. You can even turn the chip off
*without* reinstalling (when you turn it on again it will reinitialize).

It is also true that when you *do* reinstall you lose any data that had
previously been DRM-protected.

shap