A Tree-Based Signature Scheme for VANETs

In this paper, the authors propose a robust and efficient signature scheme for Vehicle-to-Infrastructure communications, which can effectively eliminate the performance bottleneck when verifying a mass of signatures within a rigorously required interval, even under adverse scenarios with bogus messages. In addition, their scheme offers the other conventional security features for vehicular networks, such as identity privacy and traceability. Vehicular Ad-hoc NETworks (VANETs) have attracted extensive attentions in recent years for their promising potential in revolutionizing the transportation systems.