A New Scheme to Detect and Prevent Node Replication Attacks for Wireless Sensor Networks

Usually wireless sensor networks are engaged in hazardous and unreachable environments. Sensor nodes are not shielded to protect from environmental factors such as temperature, pressure, voltage etc. because of cost limitation. So, the sensor network can sever from various types of attacks and threats. Among them a mentionable attack is node replication. In node clone attacks, an attacker seizure a node and get all the credential like ID, cryptographic key, code, data etc. of that node. With this information the adversary made more replica node in the network. Various schemes have been offered for identification of node clone attacks. But still they have some limitations. This work proposes a centralized system for replica identification. We divide the network into segments and chose an inspection node for each segment. Inspection node identifies a clone node by checking the node's ID and cryptographic key. We also introduce honeypot technique which increases the replica detection performance. Finally, we provide solution for two cases of blacklisted replica nodes. The cases are when the cluster head compromised and the other is when the normal node is compromised. The solutions improve the network performance.