The Interplay Between Safety and Security in Aviation Systems

Explore the critical intersection of safety and cybersecurity in modern aviation systems through this DEF CON 32 conference talk. Delve into the evolution of aviation safety standards from DO-178's establishment in 1981 to today's interconnected world, where DO-356A provides essential cybersecurity guidelines for aviation system design. Learn how Design Assurance Levels (DAL) and Security Assurance Levels (SAL) are implemented in system architecture, and understand the fundamental certification documents governing System Development (ARP4754B), System Safety (ARP4761A), and Security Considerations (DO-356A). Discover the methodology behind safety analyses, examine practical system architecture examples, and understand how safety requirements inform threat modeling. Gain valuable insights into the assignment of Security Assurance Levels and their implications for developers in the aviation industry.