SECURITY PERSPECTIVE ON WIRELESS SENSOR NETWORKS- A REVIEW

Wireless Sensor Network is a scheme contemplated to get intense information to build the information and communication system which leads to a remarkable improvement in the reliability and efficiency of the system. Wireless sensor network includes great benefits for their low cost, smart sensors and small scale factors. It can be found in a variety of both civilian and military applications worldwide. Sensor networks are rising as an attractive technology with great promise for the future. The challenges in wireless sensor networks include energy consumption, bandwidth demand, storage, power, memory, components, lifetime and security. Security is one of the most significant parts in wireless sensor network. The security services involved in WSN should protect the information transferred over the network, it also detects the misbehavior of nodes and protects the node from attacks. Security involves various schemes such as authentication, integrity, overhead and key management. This paper reveals the issues and challenges related to security in wireless sensor networks. The overview of security threats and the security mechanisms for wireless sensor networks are analyzed.