A Novel Approach for Light Weight User Authentication Scheme in Wireless Sensor Network

Wireless Sensor Networks (WSNs) are operated in hostile unattended environment so authentication is one of the important security requirements. Because of the resource constrained characteristics of WSN, the authentication scheme should sustain a lesser amount of computational as well as communication overhead. Some schemes proposed in literature are vulnerable to node compromised attack. Some schemes do not provide session-key agreement. In this paper, we concentrate on improvement of authentication schemes to withstand against the node compromise attack. Additionally, our scheme also provides mutual authentication, session key agreement and protection against replay attack.