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HB^+^+: a Lightweight Authentication Protocol Secure against Some Attacks

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3 Author(s)
J. Bringer ; Sagem Defense Securite, France ; H. Chabanne ; E. Dottax

At Crypto'05, Juels and Weis introduce HB+, an enhancement of the Hopper and Blum (HB) authentication protocol. This protocol HB+ is proven secure against active attacks, though preserving HB's advantages: mainly, requiring so few resources to run that it can be implemented on an RFID tag. However, in a wider adversarial model, Gilbert, Robshaw and Sibert exhibit a very effective attack against H+. We here show how a modification of the HB + protocol thwarts Gilbert et al's attack. The resulting protocol, HB++, remains a good choice for RFID authentication

Published in:

Second International Workshop on Security, Privacy and Trust in Pervasive and Ubiquitous Computing (SecPerU'06)

Date of Conference:

29-29 June 2006