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Journal of Sensors
Volume 2016, Article ID 1547963, 9 pages
Research Article

A Lightweight Authentication and Key Management Scheme for Wireless Sensor Networks

Key Lab of Electronic and Communication Engineering, Heilongjiang University, Harbin, China

Received 3 June 2016; Revised 6 September 2016; Accepted 21 September 2016

Academic Editor: Jose Maria de Fuentes

Copyright © 2016 Danyang Qin et al. 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.


Security problem is one of the most popular research fields in wireless sensor networks for both the application requirement and the resource-constrained essence. An effective and lightweight Authentication and Key Management Scheme (AKMS) is proposed in this paper to solve the problem of malicious nodes occurring in the process of networking and to offer a high level of security with low cost. For the condition that the mobile sensor nodes need to be authenticated, the keys in AKMS will be dynamically generated and adopted for security protection. Even when the keys are being compromised or captured, the attackers can neither use the previous keys nor misuse the authenticated nodes to cheat. Simulation results show that the proposed scheme provides more efficient security with less energy consumption for wireless sensor networks especially with mobile sensors.