On Tue, 14 Jun 2005 08:17, Johnathan Corgan wrote: > I sure wish I could remember where to find it, but I've seen > demonstrated a program that would generate valid AM waveforms by > displaying certain pictures on a video screen. You'd enter a target > frequency (I think in the HF range) and choose a MIDI sound file, and it > would "modulate" the CRT display to emit RFI at that frequency with the > tones riding as AM modulation. Very spooky. It was a demonstration of > the security hazards associated with CRT displays (TEMPEST stuff) in a > very palpable way.
There's a link on the page Seth sent.. http://www.erikyyy.de/tempest/ -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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