Review on Identity-Based Batch Verification Schemes for Security and Privacy in VANETs

The study of vehicular ad-hoc networks (VANETs) has received significant attention among academia;even so, its security and privacy still become a central issue that is wide-open to discuss. The authentication schemes deployed in VANETs have a substantial impact on its security and privacy. Many researchers have proposed a variety of schemes related to the information verification and efficiency improvement in VANETs. In recent years, many papers have proposed identity-based batch verification (IBV) schemes in regard to diminishing overhead in the message verification process in VANETs. This survey begins with providing background information about VANETs and clarifying its security and privacy, as well as performance requirements that must be satisfied. After presenting an outlook of some relevant surveys of VANETs, a brief review of some IBV schemes published in recent years is conferred. The detailed approach of each scheme, with a comprehensive comparison between them, has been provided afterward. Finally, we summarize those recent studies and possible future improvements.