A group-based authentication scheme for vehicular Moving Networks

Uninterrupted mobile connectivity in fast moving public transportation systems like bus and train is difficult to achieve. Frequent handovers and security procedures for a large number of mobile users travelling together in these mass transportation systems can cause disruption in connectivity and signaling overload on the network. A possible solution to this problem is to group together all co-located users and perform a single authentication/handover procedure for the entire group. In this paper, the authors propose a lightweight, multi-layered, group based authentication protocol for a group of mobile users travelling in public transportation systems.