At 02:45 PM 11/19/99 -0500, Marcus Leech wrote:
>Has anyone considered experimenting with DPA (Differential Power
>Analysis), but
> using spectral data, instead of power consumption?
>
>Different operations will produce different EM spectra,
You have just reinvented the stuff TEMPEST tries to fight -
van Eck monitoring. Monitors, RS232 lines, and PC busses
have been found to radiate well.
A while back someone on cypherpunks posted a program that would let you
hear FSK modulation on a normal radio when the program
was run, by modulating PCI traffic.
