The actual Tempest specs used to be classified. On Thu, May 5, 2016 at 8:17 AM, Noel Chiappa <[email protected]> wrote:
> > From: Erik Baigar > > > very interesting reading > > If you want to see a great example of why it was important, check out the > so-called 'Berlin Tunnel': > > https://en.wikipedia.org/wiki/Operation_Gold > http://www.fas.org/irp/cia/product/tunnel-200702.pdf > > Some of the traffic that was intercepted was teletype traffic - which had > been encrypted. However, the equipment that connected the gear to the line > allowed a tiny electronic whisper of the original plain-text onto the line, > along with the encrypted form, and it was possible to read the plaintext > off > the line with suitable gear. > > Noel >
