SND: Secure neighbor discovery for 60 GHz network with directional antenna

In this paper, we propose a wormhole attack resistant secure neighbor discovery scheme, named SND, for 60 GHz directional wireless network with a centralized network controller (NC). In specific, the proposed SND scheme consists of three phases: the NC broadcasting phase, the network node response/authentication phase and the NC time-delay analysis phase. In the broadcasting phase and response/authentication phase, local time information and antenna direction information are elegantly exchanged with signature based authentication techniques between the NC and legislate network nodes, which can prevent most of the wormhole attacks. In the NC time-delay analysis phase, the NC can further detect the possible attack by using the time-delay information from the network node. To solve the transmission collision problem in the response/authentication phase, an RD-TDMA protocol is also proposed. Both simulation results and security analysis demonstrate that the proposed SND scheme can effectively resist wormhole attack for the 60 GHz communication network with directional antenna.