The Dilemma of Data Security, Privacy, Control and Liability in V2X

It is foreseen that vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication systems will be deployed in the next decade. Data security is an enabler for V2V and V2I communication, because the authenticity, integrity and confidentiality of exchanged network traffic must be guaranteed, especially since these messages will certainly be used for safety applications. Furthermore, privacy of the participants must be ensured. While there are mechanisms available to provide protection against mechanical or electronic failures, data security provides protection against malicious attacks motivated by ill will. Malicious parties might attack the communication channel or try to manipulate the integrity of data stored or processed in vehicles. Data security enables trustable safety applications and thus results in fruitful business model revenue. Unfortunately, designing and implementing data security in V2X is not a trivial task but needs to be considered from various perspectives. In this article, we will present the main problems and show approaches to overcome these.