KALwEN+: practical key management schemes for gossip-based wireless medical sensor networks

Authors:
Zheng Gong;Qiang Tang;Yee Wei Law;Hongyang Chen
Affiliations:
Faculty of EWI, University of Twente, The Netherlands;Faculty of EWI, University of Twente, The Netherlands;Department of EEE, The University of Melbourne, Australia;Institute of Industrial Science, The University of Tokyo, Japan
Venue:
Inscrypt'10 Proceedings of the 6th international conference on Information security and cryptology
Year:
2010

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Abstract

The constrained resources of sensors restrict the design of a key management scheme for wireless sensor networks (WSNs). In this work, we first formalize the security model of ALwEN, which is a gossip-based wireless medical sensor network (WMSN) for ambient assisted living. Our security model considers the node capture, the gossip-based network and the revocation problems, which should be valuable for ALwEN-like applications. Based on Shamir's secret sharing technique, we then propose two key management schemes for ALwEN, namely the KALwEN+ schemes, which are proven with the security properties defined in the security model. The KALwEN+ schemes not only fit ALwEN, but also can be tailored to other scalable wireless sensor networks based on gossiping.