An RFID based system for digital investigation in Vehicular Adhoc Networks

This paper proposes a system for digital investigation in Vehicular Adhoc Networks (VANets). A set of communicating and cooperating components, entitled observers, which are in charge of evidence collection, are integrated into the On-board and Road-Side units of the VANet. The analysis of evidences is performed at the Road-Side level, to identify occurred attacks and determine the identities and location of nodes responsible of the attack. In this proposal, Radio Frequency Identification (RFID) technology is used to support storage and delivery of evidences. The latter provides immediate access to evidences, and facilities the integration of the investigation-based components to vehicles. A case study, dealing with the investigation of a download to fail attack on a firmware update over the air, is also presented.