Volume : III, Issue : IV, April - 2014

Improved Key Selection Techniques for Wireless Sensor Networks

R. Dhanalakshmi, K. Pradeepa

Abstract :

Wireless Sensor Networks (WSNs) are more vulnerable to security attacks than wired networks because of their wireless and dynamic nature. It is important to define whether an incoming message originates from a reliable node or not. The primary answer for this is the use of cryptographically marked messages. There are two fundamental arrangements for marking messages: namely symmetric and asymmetric algorithm based cryptography. In the asymmetric key cryptography, public/private key sets are utilized to encrypt and decrypt messages. However, it can cause severe computational, memory, and energy overhead. On the other side, symmetric key cryptography is superior to asymmetric key cryptography in terms of speed and low energy cost, but at the same time, it needs to design an efficient and flexible key distribution schemes for improving key selection performance. In this paper, it is proposed a dynamic key management system for WSNs with the cluster head as a key distribution and coordination center for asymmetric keys. Public keys of the sensor nodes are dispatched by cluster head and symmetric keys set with these key combinations.

Keywords :

Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

R.Dhanalakshmi, K.Pradeepa Improved Key Selection Techniques for Wireless Sensor Networks International Journal of Scientific Research, Vol.III, Issue. IV Apr 2014

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