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Second International Workshop on Security, Privacy and Trust in Pervasive and Ubiquitous Computing (SecPerU'06)
HB^+^+: a Lightweight Authentication Protocol Secure against Some Attacks
Lyon, France
June 29-June 29
ISBN: 0-7695-2549-0
Julien Bringer, Sagem Defense Securite, France
Herv?e Chabanne, Sagem Defense Securite, France
Emmanuelle Dottax, Sagem Defense Securite, France
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 HB+.

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.

Index Terms:
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.
Citation:
Julien Bringer, Herv?e Chabanne, Emmanuelle Dottax, "HB^+^+: a Lightweight Authentication Protocol Secure against Some Attacks," secperu, pp.28-33, Second International Workshop on Security, Privacy and Trust in Pervasive and Ubiquitous Computing (SecPerU'06), 2006
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