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Paper: Reducing RFID Reader Load with the Meet-in-the-Middle Strategy

Authors:
Jung Hee Cheon
Jeongdae Hong
Gene Tsudik
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URL: http://eprint.iacr.org/2009/092
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Abstract: In almost any RFID system, a reader needs to identify, and optionally authenticate, a multitude of tags. If each tag has a unique secret, identification and authentication are trivial, however, the reader (or a back-end server) needs to perform a brute-force search for each tag-reader interaction. In this paper, we suggest a simple, efficient and secure technique that reduces reader computation to $O(\sqrt N \cdot \log N)$. Our technique is based on the well-known ``meet-in-the-middle'' strategy used in the past to attack certain symmetric ciphers.
BibTeX
@misc{eprint-2009-18232,
  title={Reducing RFID Reader Load with the Meet-in-the-Middle Strategy},
  booktitle={IACR Eprint archive},
  keywords={applications/RFID Identification, Authentication, Meet-in-the-Middle Strategy, PRF},
  url={http://eprint.iacr.org/2009/092},
  note={ jhcheon@snu.ac.kr 14296 received 21 Feb 2009, last revised 21 Feb 2009},
  author={Jung Hee Cheon and Jeongdae Hong and Gene Tsudik},
  year=2009
}