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中村 嘉隆  >

このアイテムの引用には次の識別子を使用してください: http://hdl.handle.net/10445/6477

タイトル: Certification of Secure Encounter History Among Low Power Mobile Sensors
著者: Sakai, Takurou
Uchiyama, Akira
Nakamura, Yoshitaka
Higashino, Teruo
アブストラクト: In this paper, we propose a technique for certifying encounter information with acquaintances in wireless sensor networks. In our technique, we assume that each user holds a small low power sensor with a short range wireless communication device such as ZigBee, and that multiple sensors called landmarks, which provide accurate location and time, are sparsely distributed in the target area. Each user’s sensor stores encounter information obtained from other users and landmarks in its memory, and it sends those information to its local server when it meets with landmarks which are connected to the Internet. At the same time, we assume that each user registers his/her private key and the list (called friend list) of his/her acquaintances in the Certification Authority (CA) server. When each user sends his/her encounter information to CA, CA informs the digital evidence about when and whom each user has met. In order to keep privacy of each encountered person, if an encountered person does not register the user’s name in his/her friend list, the user cannot know that the user has met with the encountered person. Thus, our technique guarantees anonymity and unlinkability of encounter information by using a hash function and symmetric-key encryption. We have implemented the proposed technique using a hash function SHA-1 on MOTE and confirmed efficiency of the proposed technique through experiments. In addition, we have theoretically analyzed its low energy consumption and practical ability about traceability.
研究業績種別: 国際会議/International Conference
資料種別: Conference Paper
査読有無: あり/yes
単著共著: 共著/joint
発表雑誌名,発表学会名など: 4th Annual IFIP WG 11.9 International Conference on Digital Forensics (ICDF2008)
開始ページ: 95
終了ページ: 110
年月日: 2008年1月
出現コレクション:中村 嘉隆





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