[117860] in Cypherpunks

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chips, trust, etc.

daemon@ATHENA.MIT.EDU (Anonymous)
Mon Sep 13 11:58:40 1999

Date: Mon, 13 Sep 1999 17:40:16 +0200 (CEST)
Message-Id: <199909131540.RAA04311@mail.replay.com>
From: Anonymous <nobody@replay.com>
To: cypherpunks@algebra.com
Reply-To: Anonymous <nobody@replay.com>

At 01:05 AM 9/13/99 -0700, Gary Jeffers wrote:
>   It seems to me that to have real computer security it is necessary
>to have at least 1 CPU chip trusted. 

*Ding*

>   It might be possible to put a modest CPU chip in line with the
>powerful, modern "maliced" chips in order to "cage" them. The 

Brian Snow of the NSA/ISSO mentioned the utility of 'islands'
of trust inside untrusted systems at CHES '99.

trusted
>chip would encrypt and decrypt the data flowing to and from the
>"maliced" chip. There could be several cheap trusted chips in a system.
>At the very least, the trusted chips could prevent "maliced" systems
>from sending and receiving "malice" strings.

The use is more like having the trusted subsystem
manage keys, possibly manage the 'red' traffic,
and the untrusted host does other things.

>   Would it be practical for a huge State to force CPU chip
>manufacturers to design their chips with backdoors?

There are a lot of people at the Fabs who need green cards.

-Kipple







  





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