Security-Aware Real-Time Transmission for Automotive CAN-FD Networks

High-performance embedded computing systems are widely used in intelligent vehicles, providing the possibility of secure and real-time communication for automotive networks. CAN-FD is beneficial for the communication of intelligent vehicles due to its high bandwidth (up to 12 Mbps) and data field length (up to 64 bytes). However, CAN-FD lacks any security-aware measures, making it vulnerable to malicious attacks. In addition, various automated driving applications are being added to intelligent vehicles, thereby generating huge amounts of dependent messages in automotive CAN-FD networks. The high data volume brings a great challenge to real-time requirements. Therefore, despite the bandwidth of CAN-FD is high and the data-field length is long, it is also necessary to consider the real-time transmission requirements when deploying security-aware methods to CAN-FD. This chapter surveys the recent advances in security-aware real-time transmission for automotive CAN-FD networks, mainly including 1) confidentiality-aware real-time transmission methods; 2) integrity-aware real-time transmission methods; and 3) availability-aware real-time transmission methods. We further discuss the future trend in security-aware real-time methods in terms of new demands and prospective developments. By investigating the recent progress and presenting the future trends, we hope to provide researchers a systematic reference and development directions in security-aware real-time methods.