A Comparative Survey of Blockchain-Based Security Mechanisms for OTA updates in CAVs
Zeeman Memon, Ikjot Saini · 2024
In Connected and Autonomous Vehicles (CAVs), there is an increasing demand and reliance on connected vehicle software systems. To keep these software systems up-to-date and secure from evolving threats, the OEM Manufacturers rely on the Over-the-Air (OTA) Updates. In this paper, we explore security challenges posed by remote OTA updates, emphasizing the need for robust OTA update mechanisms that preserve the integrity of the update and emerging requirements to adhere to global automotive cybersecurity regulations and standards. We provide a comparative survey of Blockchain-based security mechanisms for enhancing the security of OTA updates for CAVs by highlighting the existing approaches that use blockchain technology to create secure architectures for OTA updates compared to traditional methods. We also identified critical security challenges associated with OTA updates and outlined potential avenues for future research, guiding advancements in blockchain applications in CAVs.