Study on information leakage of input key due to frequency fluctuation of RC oscillator in keyboard

Masahiro Kinugawa, Yu Ichi Hayashi, Takaaki Mizuki, Hideaki Sone

研究成果: Article査読

1 被引用数 (Scopus)

抄録

Recently, it has been shown that electromagnetic radiation from electrical devices leaks internal information. Some investigations have shown that information leaks through the clock frequency and higher harmonic waves. Thus, previous studies have focused on the information leakage from information processing circuits. However, there has been little discussion about information leaks from peripheral circuits. In this paper, we focus on the oscillation frequency of the integrated RC oscillators. In this paper, we use a keyboard as a device that includes a RC oscillator. Then experiments observed information leaks caused by key inputs. Our experiments show that frequency fluctuations cause information leakages and clarify what information can be acquired from the fluctuation. Then, we investigate the possibility of information leaking from peripheral circuits through modulated signals which are radiated by the peripheral circuits.

本文言語English
ページ(範囲)2633-2638
ページ数6
ジャーナルIEICE Transactions on Communications
E96-B
10
DOI
出版ステータスPublished - 2013 10月

ASJC Scopus subject areas

  • ソフトウェア
  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学

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