[Cryptography] 'The intelligence coup of the century'

Joachim Strömbergson joachim at strombergson.com
Mon Feb 17 14:51:25 EST 2020


Aloha!

On 2020-02-14 18:15, Whitfield Diffie wrote:
>> Is this a TEMPEST tool, perhaps long used, even now? Ross Anderson aware of it?
> 
>     Listening to CPUs with radios was common.  I haven't tried it in
> years but I recall being surprised that when I had a TEMPEST-shielded
> Sun workstation in the '90s, it could be heard on the radio.  I don't
> recall much about what is sounded like.  With the PDP-6, I recall that
> you could hear the different phases of a radix sort.

The Tempest for Eliza from just around the millennium is a great tempest
example:

http://www.erikyyy.de/tempest/

I haven't tested it for many years, would be interesting to know if it
works with more modern screens.

-- 
Med vänlig hälsning, Yours

Joachim Strömbergson - Alltid i harmonisk svängning.
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