A practical evaluation method for em information leakage by using audible signal

Ryota Birukawa, Takaaki Mizuki, Hideaki Sone, Yu-Ichi Hayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publication2019 Joint International Symposium on Electromagnetic Compatibility, Sapporo and Asia-Pacific International Symposium on Electromagnetic Compatibility, EMC Sapporo/APEMC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages250-253
Number of pages4
ISBN (Electronic)9784885523229
DOIs
Publication statusPublished - 2019 Jun
Event2019 Joint International Symposium on Electromagnetic Compatibility, Sapporo and Asia-Pacific International Symposium on Electromagnetic Compatibility, EMC Sapporo/APEMC 2019 - Sapporo, Japan
Duration: 2019 Jun 32019 Jun 7

Publication series

Name2019 Joint International Symposium on Electromagnetic Compatibility, Sapporo and Asia-Pacific International Symposium on Electromagnetic Compatibility, EMC Sapporo/APEMC 2019

Conference

Conference2019 Joint International Symposium on Electromagnetic Compatibility, Sapporo and Asia-Pacific International Symposium on Electromagnetic Compatibility, EMC Sapporo/APEMC 2019
CountryJapan
CitySapporo
Period19/6/319/6/7

Keywords

  • EM emanarion
  • Electromagnetic (EM) information leakage
  • LCD display
  • Leakage evaluation

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Hardware and Architecture
  • Information Systems and Management

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