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I Bought a New Security Token and All I Got Was This Lousy Phish—Relay Attacks on Visual Code Authentication Schemes

  • Graeme Jenkinson
  • Max SpencerEmail author
  • Chris Warrington
  • Frank Stajano
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8809)

Abstract

One recent thread of academic and commercial research into web authentication has focused on schemes where users scan a visual code with their smartphone, which is a convenient alternative to password-based login. We find that many schemes in the literature (including, previously, our own) are, unfortunately, vulnerable to relay attacks. We explain the inherent reasons for this vulnerability and offer an architectural fix, evaluating its trade-offs and discussing why it has never been proposed by other authors.

Keywords

Authentication Scheme Authentication Protocol Visual Code Quick Response Code Rendezvous Point 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

We gratefully acknowledge the European Research Council for funding this research under grant 307224.

We also thank Olgierd Pieczul for pointing out the login gifting attack during the workshop.

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Copyright information

© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Graeme Jenkinson
    • 1
  • Max Spencer
    • 1
    Email author
  • Chris Warrington
    • 1
  • Frank Stajano
    • 1
  1. 1.Computer LaboratoryUniversity of CambridgeCambridgeUK

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