Challenges and Directions for Automated Driving Security

Security for automated driving systems brings new challenges that are not typically considered in automotive cybersecurity of conventional non-automated systems. The game changers behind these challenges are missing driver supervision, increased actuator control over vehicle movement, and greater reliance on external input. Based on our practical experience and lessons learned during development of a SAE level 3 automated driving system, we review the different challenges and discuss directions towards solving them. Some of the challenges can be addressed by applying well-known security mechanisms more rigorously. Some must be handled by collaboration across disciplines, such as security and safety, or security and function development. Others were identified as open challenges and we point out where more research is required to develop new solutions and to examine whether a technical solution is possible at all.