Method for Evaluating Digital Video Electromagnetic Information Leakage from Video Cable

WANG Sen; QIU Yang; TIAN Jin

doi:10.1049/cje.2021.07.009

Volume 30 Issue 5

Sep. 2021

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WANG Sen, QIU Yang, TIAN Jin, “Method for Evaluating Digital Video Electromagnetic Information Leakage from Video Cable,” Chinese Journal of Electronics, vol. 30, no. 5, pp. 978-985, 2021, doi: 10.1049/cje.2021.07.009

Citation:

WANG Sen, QIU Yang, TIAN Jin, “Method for Evaluating Digital Video Electromagnetic Information Leakage from Video Cable,” Chinese Journal of Electronics, vol. 30, no. 5, pp. 978-985, 2021, doi: 10.1049/cje.2021.07.009

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Method for Evaluating Digital Video Electromagnetic Information Leakage from Video Cable

doi: 10.1049/cje.2021.07.009

WANG Sen^{1,2
,
,},
QIU Yang²,
TIAN Jin²

1. AECC Aero Engine Control System Institute, Wuxi 214100, China;
2. Electromagnetic Compatibility Laboratory, Xidian University, Xi'an 710071, China

Received Date: 2017-11-21
Available Online: 2021-09-02

Abstract

Abstract

Electromagnetic emissions from electrical information equipment may contain useful information and lead to information leakage. In order to detect the electromagnetic information leakage of digital video cable, a rapid testing method for computer video information leakage detection without reconstructing the displayed image is proposed. In this method, the electromagnetic radiation spectrum of typical image transmitted by HDMI cable is simulated. Then the electromagnetic radiation spectrum of the computer when transmitting the same image as the typical image is obtained by conduction and radiation EMC test methods. Finally, the correlation between the spectrum of simulation and the test spectrum is analyzed, and the correlation coefficient is used to judge whether the computer has produced the electromagnetic leakage of video information. The analysis and test results show that when the correlation coefficient is greater than 0.5, the electromagnetic leakage of computer video information can be judged.
- Information security,
- Compromising emanation,
- Electromagnetic leakage,
- Digital video information

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References(22)

References

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