Efficient Protocols for Secure Broadcast in Controller Area Networks

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Provided by: Politecnico di Torino
Topic: Security
Format: PDF
Controller Area Network (CAN) is a bus commonly used by controllers inside vehicles and in various industrial control applications. In the past controllers were assumed to operate in secure perimeters, but today these environments are well connected to the outside world and recent incidents showed them extremely vulnerable to cyber-attacks. To withstand such threats, one can implement security in the application layer of CAN. Here, the authors design, refine and implement a broadcast authentication protocol based on the well known paradigm of using key-chains and time synchronization, a commonly used mechanism in wireless sensor networks, which allows the users' to take advantage from the use of symmetric primitives without the need of secret shared keys during broadcast.
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