Usability of display-equipped RFID tags for security purposes

  • Authors:
  • Alfred Kobsa;Rishab Nithyanand;Gene Tsudik;Ersin Uzun

  • Affiliations:
  • University of California, Irvine, CA;Stony Brook University, NY;University of California, Irvine, CA;Palo Alto Research Center, CA

  • Venue:
  • ESORICS'11 Proceedings of the 16th European conference on Research in computer security
  • Year:
  • 2011

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Abstract

The recent emergence of RFID tags capable of performing public key operations has enabled a number of new applications in commerce (e.g., RFIDenabled credit cards) and security (e.g., ePassports and access-control badges). While the use of public key cryptography in RFID tags mitigates many difficult security issues, certain important usability-related issues remain, particularly when RFID tags are used for financial transactions or for bearer identification. In this paper, we focus exclusively on techniques with user involvement for secure user-to-tag authentication, transaction verification, reader expiration and revocation checking, as well as association of RFID tags with other personal devices. Our approach is based on two factors: (1) recent advances in hardware and manufacturing have made it possible to mass-produce inexpensive passive display-equipped RFID tags, and (2) high-end RFID tags used in financial transactions or identification are usually attended by a human user (namely the owner). Our techniques rely on user involvement coupled with on-tag displays to achieve better security and privacy. Since user acceptance is a crucial factor in this context, we thoroughly evaluate the usability of all considered methods through comprehensive user studies and report on our findings.