Explore a conference talk on vatiCAN, a vetted and authenticated CAN bus system, presented by Stefan Nürnberger and Christian Rossow at CHES 2016. Delve into real-world security challenges in automotive systems, focusing on a Porsche example. Examine the complexities of implementing secure communication in CAN networks, including delays, abstract ECUs, and backward compatibility. Learn about innovative solutions such as filters, masks, priority systems, and a global nonce generator. Analyze the results, existing architecture, key management, and overhead considerations. Gain insights from the bench setup and concluding remarks in this 22-minute presentation on enhancing automotive network security.