An information recovery technique from radiated electromagnetic fields from display devices

Abstract

Radiated electromagnetic fields from video display interfaces include display information of electronic devices. This leaked information can be eavesdropped by measuring and analyzing electromagnetic emanations. These compromising electromagnetic emanations of video display interfaces are radiated from the display panel of monitor or video display interconnects such as connector and cable. In this paper, the information of display from radiated electromagnetic fields from display devices is recovered by measuring and analyzing leaked signals. The radiated signals are received by near-field probe connected to the digital oscilloscope. The received signals are reconstructed by applying signal processing algorithm.