Analysis of information leakage from display devices with LCD

Ho Seong Lee; Jong Gwan Yook; Kyuhong Sim

doi:10.1109/URSIAP-RASC.2016.7601330

Analysis of information leakage from display devices with LCD

Ho Seong Lee, Jong Gwan Yook, Kyuhong Sim

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

5 Citations (Scopus)

Abstract

This study confirms the possibility of information leakage from two typical display devices with liquid crystal display (LCD). The compromising electromagnetic emanations are measured by log periodic antenna and wideband receiver in various distances. Frequency bands of leaked signal related to display on monitor exist in the range of several hundred megahertz with about ten megahertz bandwidth, which are different as display devices. Measured emanated signal is recovered as display by signal processing technique using software. In this process, timing parameters that necessary to composition of display are detected and clear recovered image is achieved by averaging multiple frames. The tendency of information leakage according to distance and display composition is analyzed by recovering emanated electromagnetic.

Original language	English
Title of host publication	2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	1277-1280
Number of pages	4
ISBN (Electronic)	9781467388016
DOIs	https://doi.org/10.1109/URSIAP-RASC.2016.7601330
Publication status	Published - 2016 Oct 19
Event	2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016 - Seoul, Korea, Republic of Duration: 2016 Aug 21 → 2016 Aug 25

Publication series

Name	2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016

Other

Other	2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016
Country	Korea, Republic of
City	Seoul
Period	16/8/21 → 16/8/25

Bibliographical note

Publisher Copyright:
© 2016 IEEE.

All Science Journal Classification (ASJC) codes

Signal Processing
Instrumentation
Computer Networks and Communications

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10.1109/URSIAP-RASC.2016.7601330

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Lee, H. S., Yook, J. G., & Sim, K. (2016). Analysis of information leakage from display devices with LCD. In 2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016 (pp. 1277-1280). [7601330] (2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/URSIAP-RASC.2016.7601330

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abstract = "This study confirms the possibility of information leakage from two typical display devices with liquid crystal display (LCD). The compromising electromagnetic emanations are measured by log periodic antenna and wideband receiver in various distances. Frequency bands of leaked signal related to display on monitor exist in the range of several hundred megahertz with about ten megahertz bandwidth, which are different as display devices. Measured emanated signal is recovered as display by signal processing technique using software. In this process, timing parameters that necessary to composition of display are detected and clear recovered image is achieved by averaging multiple frames. The tendency of information leakage according to distance and display composition is analyzed by recovering emanated electromagnetic.",

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doi = "10.1109/URSIAP-RASC.2016.7601330",

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Lee, HS, Yook, JG & Sim, K 2016, Analysis of information leakage from display devices with LCD. in 2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016., 7601330, 2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016, Institute of Electrical and Electronics Engineers Inc., pp. 1277-1280, 2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016, Seoul, Korea, Republic of, 16/8/21. https://doi.org/10.1109/URSIAP-RASC.2016.7601330

Analysis of information leakage from display devices with LCD. / Lee, Ho Seong; Yook, Jong Gwan; Sim, Kyuhong.

2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 1277-1280 7601330 (2016 URSI Asia-Pacific Radio Science Conference, URSI AP-RASC 2016).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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N2 - This study confirms the possibility of information leakage from two typical display devices with liquid crystal display (LCD). The compromising electromagnetic emanations are measured by log periodic antenna and wideband receiver in various distances. Frequency bands of leaked signal related to display on monitor exist in the range of several hundred megahertz with about ten megahertz bandwidth, which are different as display devices. Measured emanated signal is recovered as display by signal processing technique using software. In this process, timing parameters that necessary to composition of display are detected and clear recovered image is achieved by averaging multiple frames. The tendency of information leakage according to distance and display composition is analyzed by recovering emanated electromagnetic.

AB - This study confirms the possibility of information leakage from two typical display devices with liquid crystal display (LCD). The compromising electromagnetic emanations are measured by log periodic antenna and wideband receiver in various distances. Frequency bands of leaked signal related to display on monitor exist in the range of several hundred megahertz with about ten megahertz bandwidth, which are different as display devices. Measured emanated signal is recovered as display by signal processing technique using software. In this process, timing parameters that necessary to composition of display are detected and clear recovered image is achieved by averaging multiple frames. The tendency of information leakage according to distance and display composition is analyzed by recovering emanated electromagnetic.

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Analysis of information leakage from display devices with LCD

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