Securing Pseudonym Schemes for Vehicular Privacy

This poster reports on a project to improve privacy in the presence of vehicle-to-everything (V2X) communication. Cooperative Intelligent Transport Systems (C-ITS) enable communication and information sharing between a vehicle and other entities using V2X. While there are many (emerging) applications for such messages, they also compromise privacy. Though pseudonym change strategies have been developed, privacy attacks have been demonstrated. This paper reports on a study that shows that by adding a small random noise to the length and widths of cars in V2X messages, these attacks can be defeated without negatively impacting the applications of these messages.