Secure wireless communication with dynamic secrets

Authors:
Sheng Xiao;Weibo Gong;Don Towsley
Affiliations:
Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, Amherst, MA;Department of Electrical and Computer Engineering, University of Massachusetts, Amherst, Amherst, MA;Department of Computer Science, University of Massachusetts, Amherst, Amherst, MA
Venue:
INFOCOM'10 Proceedings of the 29th conference on Information communications
Year:
2010

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Abstract

This paper introduces a set of low-complexity algorithms that when coupled with link layer retransmission mechanisms, strengthen wireless communication security. Our basic idea is to generate a series of secrets from inevitable transmission errors and other random factors in wireless communications. Because these secrets are constantly extracted from the communication process in realtime, we call them dynamic secrets. Dynamic secrets have interesting security properties. They offer a complementary mechanism to existing security protocols. Even if the adversary exploits a vulnerability and steals the underlying system secret, security can be automatically replenished. In many scenarios, it is also possible to bootstrap a secure communication with the dynamic secrets.