Presentation 2015-06-12
[Invited Talk] Hardware Security for Mobile Devices in Public Spaces
Yu-ichi Hayashi, Naofumi Homma, Takafumi Aoki, Hideaki Sone,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The users of tablet PCs are rapidly spreading, and accordingly there are many scenes browsing and inputting personal information in public places with third persons in addition to private places. Unlike the conventional mobile phones and notebook PCs equipped with distinct input devices (e.g., keyboard), tablet PCs have touch-screen keyboards for data input. Such integration of display and input device increases the damage when the display is stolen by malicious attackers. This paper presents a new threat of stealing tablet PC dis-plays via electromagnetic (EM) emanation. In the conventional studies, such EM display stealing has been conducted with non-transportable setups. The studies also assumed that a large amount of times was available in advance to obtain electrical parameters specified for a target display. In contrast, this paper demonstrates that such EM display stealing is feasible in real time by a setup portable in an attache case. The EM display stealing does not require the conventional parameter tunings due to the prior profiling and the real-time signal processing. The attack distance of 2 m can be a practical threat to the general tablet PCs in public places. This paper discusses possible attack scenarios based on the above setup. In addition, we de-scribe a mechanism of EM emanation from tablet PCs and a countermeasure against such EM display stealing.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) EM Information Leakage / Tablet Devices / Hardware Security
Paper # IA2015-13,ICSS2015-13
Date of Issue 2015-06-04 (IA, ICSS)

Conference Information
Committee IA / ICSS
Conference Date 2015/6/11(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Kyushu Institute of Technology Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English) Internet Security, etc.
Chair Ken-ichi Yoshida(Univ. of Tsukuba) / Yutaka Miyake(KDDI R&D Labs.)
Vice Chair Hiroyuki Osaki(Kwansei Gakuin Univ.) / Masahiro Jibiki(NICT) / Yutaka Nakamura(Kyushu Inst. of Tech.) / Takashi Nishide(Univ. of Tsukuba) / Yoshiaki Shiraishi(Kobe Univ.)
Secretary Hiroyuki Osaki(Tokyo Inst. of Tech.) / Masahiro Jibiki(Osaka Univ.) / Yutaka Nakamura(Mitsubishi Electric) / Takashi Nishide(NII) / Yoshiaki Shiraishi
Assistant Yuichiro Hei(KDDI R&D Labs.) / Hiroshi Yamamoto(Ritsumeikan Univ.) / Toshiki Watanabe(NEC) / Katsunari Yoshioka(Yokohama National Univ.) / Kazunori Kamiya(NTT)

Paper Information
Registration To Technical Committee on Internet Architecture / Technical Committee on Information and Communication System Security
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Invited Talk] Hardware Security for Mobile Devices in Public Spaces
Sub Title (in English)
Keyword(1) EM Information Leakage
Keyword(2) Tablet Devices
Keyword(3) Hardware Security
1st Author's Name Yu-ichi Hayashi
1st Author's Affiliation Tohoku Gakuin University(Tohoku Gakuin Univ.)
2nd Author's Name Naofumi Homma
2nd Author's Affiliation Tohoku University(Tohoku Univ.)
3rd Author's Name Takafumi Aoki
3rd Author's Affiliation Tohoku University(Tohoku Univ.)
4th Author's Name Hideaki Sone
4th Author's Affiliation Tohoku University(Tohoku Univ.)
Date 2015-06-12
Paper # IA2015-13,ICSS2015-13
Volume (vol) vol.115
Number (no) IA-80,ICSS-81
Page pp.pp.69-74(IA), pp.69-74(ICSS),
#Pages 6
Date of Issue 2015-06-04 (IA, ICSS)