Network Coding Combined with Onion Routing for Anonymous and Secure Communication in a Wireless Mesh Network

摘要

This paper presents a novel scheme that provides high level of security and privacy in a Wireless MeshNetwork (WMN). We combine an approach of Network Coding with multiple layered encryption of onionrouting for a WMN. An added superior feature provides higher level of security and privacy. Sensitivenetwork information is confined to 1-hop neighborhood which is available anyways in a wireless mediumwith nodes using a bivariate polynomial. The only routing information divulged to a relay node is aboutnext hop. No plain text is ever transmitted and all data can only be decrypted by its source and destination.Prior work finds it difficult to enforce encryption with network coding without divulging in completerouting information,hence losing privacy and anonymity. We compare our scheme with other existingapproach for several networks. The preliminary results show this work to provide superior security andanonymity at low overhead cost.