A scalable and efficient scheme for privacy-protected RFID systems (情報ネットワーク)
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概要
- 論文の詳細を見る
Radio Frequency Identification (RFID) has become a useful tool and been applied to many systems such as supply chain management and library. However, RFID tags have raised important privacy issues, especially the location privacy risks to individuals. There are several proposed schemes for RFID systems to ensure location privacy. However, these schemes have the scalability issues in the back-end database. We propose an extension of the time-memory trade-off scheme to reduce even more the tags identification time in the back-end database by focusing on managing the false alarm problem. False alarm problem which occurs due to collision results in extra hash computations. We append information about merging positions to the conventional rainbow table to generate a new looked up table named merging position rainbow table, MPRT. We show that by using our time-memory trade-off approach with MPRT, tags identification time will be reduced by about 20.2% with the memory cost increased by 16.1%. Furthermore, using MPRT is more efficient than using the traditional rainbow table when the number of tags is smaller than approximately 300×10^4.
- 社団法人電子情報通信学会の論文
- 2008-02-07
著者
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Anh Le
Department Of Computer Science The University Of Eclectro-communications
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Abe Koki
Department Of Computer Science The University Of Eclectro-communications
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Abe Koki
Department Of Computer Science
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