TY - GEN
T1 - A practical evaluation method for em information leakage by using audible signal
AU - Birukawa, Ryota
AU - Mizuki, Takaaki
AU - Sone, Hideaki
AU - Hayashi, Yu-Ichi
N1 - Funding Information:
ACKKNOWLEDGEMENT This work has supported by JSPS KAKENHI Grant Numbers 17H01751 and 16H02831.
Publisher Copyright:
© 2019 The Institute of Electronics, Information and Communication Engineer.
PY - 2019/6
Y1 - 2019/6
N2 - A method for evaluating electromagnetic (EM) information leakage through EM emanation from displays is introduced. The basic idea is that the method determines the information leakage by detecting an audio signal without reconstructing the screen image. We propose an image which is called the controlled image. When the controlled image is displayed on a device, an audible frequency range signal is generated at information leakage frequency. By detecting the audio signal, we can confirm the information leakage. Several leakage frequencies of a laptop PC are obtained by the proposed method and we were able to reconstruct the screen image of the laptop at the frequencies we obtained to confirm the validity of our method.
AB - A method for evaluating electromagnetic (EM) information leakage through EM emanation from displays is introduced. The basic idea is that the method determines the information leakage by detecting an audio signal without reconstructing the screen image. We propose an image which is called the controlled image. When the controlled image is displayed on a device, an audible frequency range signal is generated at information leakage frequency. By detecting the audio signal, we can confirm the information leakage. Several leakage frequencies of a laptop PC are obtained by the proposed method and we were able to reconstruct the screen image of the laptop at the frequencies we obtained to confirm the validity of our method.
KW - EM emanarion
KW - Electromagnetic (EM) information leakage
KW - LCD display
KW - Leakage evaluation
UR - http://www.scopus.com/inward/record.url?scp=85075269292&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85075269292&partnerID=8YFLogxK
U2 - 10.23919/EMCTokyo.2019.8893761
DO - 10.23919/EMCTokyo.2019.8893761
M3 - Conference contribution
AN - SCOPUS:85075269292
T3 - 2019 Joint International Symposium on Electromagnetic Compatibility, Sapporo and Asia-Pacific International Symposium on Electromagnetic Compatibility, EMC Sapporo/APEMC 2019
SP - 250
EP - 253
BT - 2019 Joint International Symposium on Electromagnetic Compatibility, Sapporo and Asia-Pacific International Symposium on Electromagnetic Compatibility, EMC Sapporo/APEMC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 Joint International Symposium on Electromagnetic Compatibility, Sapporo and Asia-Pacific International Symposium on Electromagnetic Compatibility, EMC Sapporo/APEMC 2019
Y2 - 3 June 2019 through 7 June 2019
ER -