A Privacy Preserving Data Collecting Scheme in Vanet

Abstract

As an important application of Vanet (Vehicle Ad hoc network), the Vehicle Crowd Sense (VCS) uses intelligent vehicles as sensing nodes to collect road information. In VCS, vehicle information is shared, which necessitates privacy protection. How to balance information sharing and privacy protection is a great challenge. Identity privacy protection is the basic requirement of VCS. In many schemes, pseudonyms are used to protect the vehicle’s identity privacy. However, it is inconvenient to update and manage pseudonyms. Specifically, in our scheme, the vehicle’s identity privacy is protected without pseudonyms. Furthermore, our scheme supports reputation privacy protection. Finally, security analysis shows that our scheme satisfies the requirement of privacy preserving, and the experiment and performance analysis show our scheme is efficient on computation and communication.