[GreenKeys] Teletype and TEMPEST info

[Nick England]

Project GUNMAN
https://www.nsa.gov/about/cryptologic-heritage/historical-figures-publications/publications/assets/files/gunman-project/Learning_From_the_Enemy_The_GUNMAN_Project.pdf

The big task for the NSA was substituting clean machines for compromised
ones without alerting the Soviets.
Nick

Nick England K4NYW
www.navy-radio.com

On Sun, Oct 23, 2016 at 2:37 PM, Jim Haynes <jhhaynes at earthlink.net> wrote:

> There's also an article I can't find right now about how the Soviets
> intercepted shipments of Selectric typewriters to the U.S. Embassy
> and fitted them with little radio transmitters.  The Selectric lends
> itself to this treatment because, like a teleprinter, it encodes the
> keyboard characters into a six-bit code that controls the printing
> mechanism.
>
>
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