A Wormhole Attack Resistant Neighbor Discovery Scheme With RDMA Protocol for 60 GHz Directional Network

In this paper, we propose a wormhole attack resistant secure neighbor discovery (SND) scheme for a centralized 60-GHz directional wireless network. Specifically, the proposed SND scheme consists of three phases: the network controller (NC) broadcasting phase, the network nodes response/authentication phase, and the NC time analysis phase. In the broadcasting phase and the response/authentication phase, local time information and antenna direction information are elegantly exchanged with signature-based authentication techniques between the NC and the legislate network nodes, which can prevent most of the wormhole attacks. In the NC time analysis phase, the NC can further detect the possible attack using the time-delay information from the network nodes. To solve the transmission collision problem in the response/authentication phase, we also introduce a novel random delay multiple access (RDMA) protocol to divide the RA phase into M periods, within which the unsuccessfully transmitting nodes randomly select a time slot to transmit. The optimal parameter setting of the RDMA protocol and the optional strategies of the NC are discussed. Both neighbor discovery time analysis and security analysis demonstrate the efficiency and effectiveness of the proposed SND scheme in conjunction with the RDMA protocol.