Novel Detection of Mobile Replica Node Attacks in Wireless Sensor Networks using Reputation Based Data Validation

An attacker can capture and compromise sensor nodes, takes the confidential information from sensor nodes and create various attacks with these replicas. An adversary can create mobile replicas of sensor nodes, to transmit fake data, to handle and control the network operations. The Sequential Probability Ratio Test (SPRT) and quarantine defense strategies were proposed to detect and optimise mobile replicas in wireless sensor networks. The detection of replica node is based on mobility of nodes, where the sensor nodes and the mobile replica have the same mobility; it's difficult to find replicas in sensor networks. In order to find mobile replica in sensor networks, we propose reputation based data validation scheme to tackle the problem of replica node attacks. Finally, the proposed scheme detects mobile replicas in an efficient and robust manner through the simulation results.