Abstract
Modern vehicles embed a lot of software that turns them into Cyper-Physical Systems (CPS). Electronic Control Units (ECUs) communicate through the CAN bus protocol, which was not designed to be secure. This paper presents a proof-of-concept of TOUCAN, a new security protocol designed to secure CAN bus communications following the AUTOSAR standard. The presentation introduces design, implementation and performance of TOUCAN on a test-bed composed by two inexpensive boards that can be demonstrated to exchange secure TOUCAN frames.
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