Public key cryptography and RFID tags

  • Authors:
  • M. McLoone;M. J. B. Robshaw

  • Affiliations:
  • Institute of Electronics, Communications, and Information Technology, Queen's University, Belfast, U.K.;France Telecom Research and Development, Issy les Moulineaux, Cedex 9, France

  • Venue:
  • CT-RSA'07 Proceedings of the 7th Cryptographers' track at the RSA conference on Topics in Cryptology
  • Year:
  • 2007

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Abstract

When exploring solutions to some of the formidable security problems facing RFID deployment, researchers are often willing to countenance the use of a strong symmetric primitive such as the AES. At the same time it is often claimed that public key cryptography cannot be deployed on low-cost tags. In this paper we give a detailed analysis of the GPS identification scheme. We show that with regards to all three attributes of space, power, and computation time, the on-tag demands of GPS identification compare favourably to the landmark AES implementation by Feldhofer et al.. Thus, assumed limits to implementing asymmetric cryptography on low-end devices may need to be re-evaluated.