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<p>Thank you; what an interesting read, particularly the part where
some users thought the Tempest soft fonts were more readable!<br>
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<div class="moz-cite-prefix">On 4/24/20 10:15 AM, Paul Koning wrote:<br>
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cite="mid:54348D87-C419-46F5-9856-19E29838DDD3@comcast.net">
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Found it yesterday. <a
href="https://www.cl.cam.ac.uk/~rja14/Papers/nato-tempest.pdf"
class="" moz-do-not-send="true">https://www.cl.cam.ac.uk/~rja14/Papers/nato-tempest.pdf</a>
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<div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>paul<br
class="">
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<div class="">On Apr 23, 2020, at 10:46 PM, Thomas DeBellis
<<a href="mailto:tommytimesharing@gmail.com" class=""
moz-do-not-send="true">tommytimesharing@gmail.com</a>>
wrote:</div>
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<div class="">Fascinating. You wouldn't happen to
remember that font, would you by any chance? Or the
paper?<br class="">
<br class="">
My current revenue generating incarnation is as an ISO,
so I'm sure I'd appreciate it.<br class="">
<br class="">
On 4/23/20 8:06 PM, Paul Koning wrote:<br class="">
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<blockquote type="cite" class="">On Apr 23, 2020, at
8:01 PM, William Pechter <<a
href="mailto:pechter@gmail.com" class=""
moz-do-not-send="true">pechter@gmail.com</a>>
wrote:<br class="">
<br class="">
Actually the fun mil-spec VT100 was the Tempest
VT100. Metal case to avoid radiating information
into the air and a metal cased VT100 keyboard.<br
class="">
<br class="">
Dropped that in my lap only ONCE at the FBI facility
I was Field Service for. Ugh.<br class="">
<br class="">
bill<br class="">
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One of the strangest crypto / security papers I ever
read was from famous cryptologists in England, who
designed a font that dramatically cuts emissions from
a video monitor. You could pretty much get TEMPEST
compliance simply by downloading that font and using
it for your text instead of the stock font. The
magic, as I recall, was soft edges, so the square
waveforms typical of a text video signal were
smoothed.<br class="">
<br class="">
<span class="Apple-tab-span" style="white-space:pre"> </span>paul<br
class="">
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