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Re: Part 1: Ownership and Contracts


From: Michal Suchanek
Subject: Re: Part 1: Ownership and Contracts
Date: Mon, 8 May 2006 15:59:29 +0200

On 5/6/06, Farid Hajji <address@hidden> wrote:
On Sat, May 06, 2006 at 06:52:13AM -0700, Michal Suchanek wrote:
> Ehm, the chip has two functions
> -secure key storage
> -OS attestation
>
> If you rely on either of these it is central to security and
> reliablity. If you do not, the chip is useless as it does not provide
> any other function.
>
> Both of these function assume some property of the chip that cannot be
> verified. For key storage it is durability non-disclosure of the keys
> (in fact, there is even no attempt to guarantee durability of the
> keys). For attestation it is non-forgeability of the signature. Both
> is solely in the hands of the designer and producer of the chips.
>
> >And if you're not happy with it, maybe you could burn it.
>
> If you use a free OS and a piece of hardware that is not completely
> horrible you should be able to just ignore it.

Or emulate it...


No, the point of attestation is that it cannot be emulated.

Thanks

Michal

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