TY - GEN
T1 - A study on an Effective Evaluation Method for em Information Leakage without Reconstructing Screen
AU - Birukawa, Ryota
AU - Hayashi, Yu-Ichi
AU - Mizuki, Takaaki
AU - Sone, Hideaki
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Numbers 17H01751 and 18KT0050.
Publisher Copyright:
© 2019 IEEE.
PY - 2019/9
Y1 - 2019/9
N2 - This paper presents a method for evaluating electromagnetic (EM) emanation from displays without screen image reconstruction. Our method focuses on low voltage differential signaling (LVDS), which is widely used in laptop PCs and tablets. We evaluate the EM leakage by changing the display color. The concept of our proposed method is to utilize LVDS by displaying a specific image to control the EM emanation at the leakage frequency. By detecting the controlled emanation as an audible frequency range signal, the leakage frequency can be estimated. We experimentally confirmed that the EM emanation at the intended audible frequency range signal with the proposed method was approximately 6-13 dB greater than that with the conventional method. We demonstrated that our method can estimate EM leakage even with high background noise.
AB - This paper presents a method for evaluating electromagnetic (EM) emanation from displays without screen image reconstruction. Our method focuses on low voltage differential signaling (LVDS), which is widely used in laptop PCs and tablets. We evaluate the EM leakage by changing the display color. The concept of our proposed method is to utilize LVDS by displaying a specific image to control the EM emanation at the leakage frequency. By detecting the controlled emanation as an audible frequency range signal, the leakage frequency can be estimated. We experimentally confirmed that the EM emanation at the intended audible frequency range signal with the proposed method was approximately 6-13 dB greater than that with the conventional method. We demonstrated that our method can estimate EM leakage even with high background noise.
KW - Electromagnetic emanation
KW - Electromagnetic information leakage
KW - LCD display
KW - Leakage evaluation
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U2 - 10.1109/EMCEurope.2019.8872035
DO - 10.1109/EMCEurope.2019.8872035
M3 - Conference contribution
AN - SCOPUS:85074346160
T3 - EMC Europe 2019 - 2019 International Symposium on Electromagnetic Compatibility
SP - 383
EP - 387
BT - EMC Europe 2019 - 2019 International Symposium on Electromagnetic Compatibility
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 International Symposium on Electromagnetic Compatibility, EMC Europe 2019
Y2 - 2 September 2019 through 6 September 2019
ER -