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http://dx.doi.org/10.5515/KJKIEES.2016.27.9.844

Analysis of the Electromagnetic Leakage from Liquid Crystal Display Monitors  

Lee, Ho seong (School of Electrical & Electronic Engineering, Yonsei University)
Sim, Kyuhong (LIG Nex1)
Oh, Seungsub (LIG Nex1)
Yook, Jong-Gwan (School of Electrical & Electronic Engineering, Yonsei University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.27, no.9, 2016 , pp. 844-853 More about this Journal
Abstract
Generally, the compromising electromagnetic emanations are generated from LCD(Liquid Crystal Display) monitor which is typical output component of computer. Because display information transmitted to LCD monitor is included in these emanations, there are risks about information leakage of monitor by eavesdropping of leaked signal. So, analysis about possibility of information leakage is necessary because electromagnetic security through the electromagnetic emanations is being at issue. In this paper, the possibility of display information leakage are demonstrated by analyzing the electromagnetic emanations from desktop and laptop monitors. The characteristics of leaked signal from LCD monitor is verified by analyzing display mechanism and the electromagnetic emanations are measured in the long distance by eavesdropping experiment. Also, threat of information leakage is confirmed by recovering display information with several signal processing technique and comprising with target display.
Keywords
Information Leakage; Compromising Electromagnetic Emanations; LCD Monitor; TEMPEST;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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