DENNC: A Wireless Malicious Detection Approach Based on Network Coding

In wireless networks, communications among nodes are vulnerable to attacks launched by malicious nodes. Presently, Existing malicious node detection approaches either need special hardware or depend on node listening, node encryption or node identity authentication, resulting high costs of networks. In this paper, we present a novel network coding-based malicious detection approach called DENNC for wireless networks. The key idea is to use the characteristic of information exchange to validate the information packets. The neighboring nodes of the sending node may judge the malicious behaviors by checking the correctness of the data packets and related hash value. Our approach requires no superfluity hardware and does not use complicated secret key encryption mechanisms. Analysis reveals that the proposed approach can detect the malicious node in highly probability.