Abstract
Today's vehicles are typically equipped with dozens of electronic control units that control one or more of the electrical systems or subsystems. Due to the rapid development towards autonomous driving, vehicle functionalities strongly depend on the communication between diverse control units (xCUs). Herein, tampering to manipulate e. g. the emission values of environmental protection systems (EPSs) to gain financial benefits poses a cyber risk to the various xCUs. To protect the communication channels from tampering/cyber-attacks, advanced key exchange and key management schemes are required. Within the framework of the Smart Adaptive Remote Diagnostic Anti-Tampering Systems (DIAS) project, two key exchange and management schemes are developed to enable a secure communication between xCUs and provide protection against tampering. For this purpose, two main communication protocols within a modern vehicle are considered: The Controller Area Network (CAN) protocol and the Single Edge Nibble Transmission (SENT) protocol. The DIAS project mainly aims at hardening EPSs against tampering, and it is funded by European Union's Horizon 2020 research and innovation program. The proposed key exchange and management schemes will be demonstrated in an experimental desktop environment.
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