[10564] in cryptography@c2.net mail archive
Re: Optical Time-Domain Eavesdropping Risks of CRT Displays
daemon@ATHENA.MIT.EDU (Arnold G. Reinhold)
Fri Mar 15 11:05:08 2002
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In-Reply-To: <B8B3AE73.16234%peter.fairbrother@ntlworld.com>
Date: Wed, 13 Mar 2002 01:06:21 -0500
To: Peter Fairbrother <peter.fairbrother@ntlworld.com>,
John Young <jya@pipeline.com>, <cryptography@wasabisystems.com>
From: "Arnold G. Reinhold" <reinhold@world.std.com>
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An historical note: In the early 1970's I did some contract
programming work at the Air Force Cambridge Research Lab at Hanscom
Field in Bedford, Mass. Their main computer was a CDC 6600, a super
computer in its day (60-bit words, 10 MHz clock).
http://ed-thelen.org/comp-hist/cdc6600.html
The wall separating the computer room from the hallway had a large
picture window facing the console, with its two (vector-scanned)
CRTs.
http://www.research.microsoft.com/users/gbell/craytalk/sld031.htm.
There were curtains on the window that were to be drawn whenever
classified programs were run. In addition, I was told, there was a
large board that the operators were supposed to place over the
console. I don't know if these precautions were based on analyses
similar to Kuhn's excellent paper or general paranoia, but there is a
lot to be said for the later.
Arnold Reinhold
At 1:09 PM +0000 3/12/02, Peter Fairbrother wrote:
> > John Young wrote:
>
>> Markus Kuhn has released this after learning of
>> Joe Loughry's announcement.
>>
>> -----
>>
>> Announced 5 March 2002.
>> To be presented at IEEE Oakland conference, May 2002
>>
>>
>
> > http://www.cl.cam.ac.uk/~mgk25/ieee02-optical.pdf
>>
>> Optical Time-Domain Eavesdropping Risks of CRT Displays
>>
>> Markus G. Kuhn
>> University of Cambridge, Computer Laboratory
>> JJ Thomson Avenue, Cambridge CB3 0FD, UK
>> mgk25@cl.cam.ac.uk
>>
>> Abstract
>
>I've snipped the abstract, because it's dry as ditchwater. I can only
>recommend you read this, or at least look at the pictures, if you haven't
>already.
>
>Wow.
>
>Makes Tempest look like a toy. Nice (?) one, Markus.
>
>-- Peter Fairbrother
>
>
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