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J. Sens. Actuator Netw. 2015, 4(3), 251-273;

Key Management in Wireless Sensor Networks

University Clermont Auvergne, 49 Boulevard François Mitterrand, BP 10448, F-63000 Clermont-Ferrand, France
CNRS, UMR 6158, Campus des Cézeaux, LIMOS, F-63173 Aubière, France
Author to whom correspondence should be addressed.
Academic Editor: Dharma P. Agrawal
Received: 17 April 2015 / Accepted: 14 August 2015 / Published: 7 September 2015
(This article belongs to the Special Issue Security Issues in Sensor Networks)
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Wireless sensor networks are a challenging field of research when it comes to security issues. Using low cost sensor nodes with limited resources makes it difficult for cryptographic algorithms to function without impacting energy consumption and latency. In this paper, we focus on key management issues in multi-hop wireless sensor networks. These networks are easy to attack due to the open nature of the wireless medium. Intruders could try to penetrate the network, capture nodes or take control over particular nodes. In this context, it is important to revoke and renew keys that might be learned by malicious nodes. We propose several secure protocols for key revocation and key renewal based on symmetric encryption and elliptic curve cryptography. All protocols are secure, but have different security levels. Each proposed protocol is formally proven and analyzed using Scyther, an automatic verification tool for cryptographic protocols. For efficiency comparison sake, we implemented all protocols on real testbeds using TelosB motes and discussed their performances. View Full-Text
Keywords: renewing; revocation; authentication; wireless sensor network; security; multihop; verification; formal proof renewing; revocation; authentication; wireless sensor network; security; multihop; verification; formal proof

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Mansour, I.; Chalhoub, G.; Lafourcade, P. Key Management in Wireless Sensor Networks. J. Sens. Actuator Netw. 2015, 4, 251-273.

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