Time slice protocol to detect node replication attack in wireless sensor networks

The low-cost unshielded hardware components in unshielded sensor-networks nodes leave them vulnerable to certain security attacks. With the little effort, an attacker or adversary may capture a node's information, analyze and replicate them, insert these at strategic locations to further repeat the attack. The consequences of attacks allow network to corrupt the data and can make system crash. Previous node replication detection schemes include centralized detection which has single point failure drawback, or neighborhood voting protocols that fail to detect distributed replications. Also there are many location-based detection schemes which detect accurately except in the case of attacker strategizing a replicated node to be kept in the same location of the original node. To address these issues we have proposed a new protocol that is non-topological, time-slice based to distinguish the replicated nodes from the original ones. The protocol is also lightweight protocol which consumes sufficient power from the nodes.