SEAODV: a security enhanced AODV routing protocol for wireless mesh networks

Authors:
Celia Li;Zhuang Wang;Cungang Yang
Affiliations:
Department of Computer Science and Engineering, York University;Department of Electrical and Computer Engineering, Ryerson University;Department of Electrical and Computer Engineering, Ryerson University
Venue:
Transactions on computational science XI
Year:
2010

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Abstract

In this paper, we propose a Security Enhanced AODV routing protocol (SEAODV) for wireless mesh networks (WMN). SEAODV employs Blom's key pre-distribution scheme to compute the pairwise transient key (PTK) through the flooding of enhanced HELLO message and subsequently uses the established PTK to distribute the group transient key (GTK). PTK and GTK authenticate unicast and broadcast routing messages respectively. In WMN, a unique PTK is shared by each pair of nodes, while GTK is shared secretly between the node and all its one-hop neighbours. A message authentication code (MAC) is attached as the extension to the original AODV routing message to guarantee the message's authenticity and integrity in a hop-by-hop fashion. Security analysis and performance evaluation show that SEAODV is more effective in preventing identified routing attacks and outperforms ARAN and SAODV in terms of computation cost and route acquisition latency.