Sniffing Keyboard Keystrokes with a Laser
March 26th, 2009. Published under My Recent Reads. No Comments.
pulled from Google Reader (click on title for original post)
Interesting: Chief Security Engineer Andrea Barisani and hardware hacker Daniele Bianco used a handmade laser microphone device and a photo diode to measure the vibrations, software for analyzing the spectrograms of frequencies from different keystrokes, as well as technology to apply the data to a dictionary to try to guess the words. They used a technique called dynamic time warping…