A New Lightweight Authentication Scheme for Wireless Sensor Networks

Wireless Sensor Networks (WSNs) are the type of Ad Hoc networks that can be used in critical and dangerous environments to collect, process and exchange their data. WSNs consist of a large number of low-cost sensor nodes that are small and have limited resources like power, memory and processing power, that have been deployed as dense and random. Due to the nature of WSNs are faced with multiple threats and vulnerabilities such as physical attacks, the recovery key attacks, reducing power attack, and etc. Therefore, any authentication scheme for these networks should be resistant against these attacks. In this article, we examine the strengths and weaknesses of the proper WSNs authentication schemes and a new authentication scheme based on block cipher lightweight PRESENT for the security of these networks is suggested. The proposed authentication scheme covering the previous weaknesses compared with other schemes of less computational complexity, increased security and better efficiency.