Eavesdropping on computer displays
Posted by creining | Filed under Security
Perhaps some day I will build some hardware to perform eavesdropping on computer displays and use the open source software eckbox. You can protect yourself against some TEMPEST observation by using something like Tinfoil Hat Linux. It does a few things such as manipulating the VGA console palette (okay, this just makes photography of the screen harder) and blinking encrypted messages in morse code on the keyboard LEDs. And TEMPEST does really exist, check out TEMPEST for Eliza. Good website on TEMPEST is The Complete, Unofficial
TEMPEST Information Page.
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