Authors: Mohamed-Lamine Messai; Hamida Seba
Addresses: Département d'Informatique, Faculté des Sciences, Université de Sétif 1, 19000, Sétif, Algeria ' Université de Lyon, CNRS, Université Lyon 1, LIRIS, UMR 5205, F-69622, France
Abstract: The effective technique to save energy in wireless sensor networks (WSNs) is clustering. However, organising WSNs into clusters securely is a challenging task in regard to the vulnerabilities of these networks. In this paper, we provide a secured cluster formation by proposing a new symmetric key management scheme for hierarchical WSNs (HWSNs). The new scheme is called EAHKM+ (energy aware hierarchical key management in WSNs). Only three keys are pre-distributed in each sensor node before deployment. EAHKM+ assures the establishment of a pairwise key between each sensor node and its cluster head, thus the establishment of a broadcast key in each cluster in the network. Through comparison with other proposed key management schemes in hierarchical WSNs, we show that EAHKM+ is an energy-efficient, flexible, robust and scalable solution to the key management problem in clustered WSNs.
Keywords: secure clustering; hierarchical wireless sensor networks; HWSNs; key management; energy saving.
International Journal of High Performance Computing and Networking, 2018 Vol.11 No.2, pp.145 - 155
Available online: 08 Feb 2018 *Full-text access for editors Access for subscribers Purchase this article Comment on this article