Efficient Sensor Node Authentication in Wireless Integrated Sensor Networks Using Virtual Certificate Authority

Wireless Sensor Network (WSN) is used for collecting the information from the environment. WSN consists of large number of Sensor Nodes (SN). To implement security during the transmission of data from one node to another node, different security techniques are used. Authentication is an essential requirement in sensor network pursuing security. But the Wireless Sensor Networks are very difficult to secure due to its dynamic and ad-hoc nature. To analyze the security issues that arise try to solve by integrating Wireless Sensor Networks (WSN) with the mobile network and can utilize the combined capabilities of both networks. To address the problem of authentication in WSNs this paper presents propose an efficient and secure framework which provide authentication to a roaming sensor node while allowing a sensor node to move across multiple WSNs. The proposed key management technique to provide authentication is by using Virtual Certificate Authority (VCA) which is designed especially for distributed Adhoc network.