H. S. Annapurna¹ and M. Siddappa², ¹Sri Siddhartha Academy of Higher Education, India and ²Sri Siddhartha Institute of Technology, India

Security is one of the inherent challenges in the area of Wireless Sensor Network (WSN). At present, majority of the security protocols involve massive iterations and complex steps of encryptions thereby giving rise to degradation of quality of service. Many WSN applications are based on secure group communication. In this paper, we have proposed a scheme for secure group key management with simultaneous multiple groups. The scheme uses a key-based approach for managing the groups and we show that membership change events can be handled with less storage, communication and computation cost. The scheme also offers authentication to the messages communicated within and among the groups.

Group key, Key management, Sensing Node, Secure Group Communication, Key Tree.