الفهرس | Only 14 pages are availabe for public view |
Abstract In the evolving automotive sector, secure communication within Controller Area Network (CAN) systems is crucial. This thesis examines and enhances a HMAC-based communication scheme, focusing on counter synchronization in Electronic Control Units (ECUs). By identifying and addressing key limitations, we propose effective improvements, thus elevating the security of CAN-based systems. With the advancement of automotive technologies, securing communication in CAN-based systems is essential. This research identifies vulnerabilities in an existing HMAC-based scheme, particularly in counter synchronization, and proposes robust solutions for these challenges. The study highlights vulnerabilities like counter overflow and memory errors in the original scheme. Solutions include a Special Initialization Message (SIM) for counter value clarity and a redundancy mechanism for memory error prevention. These enhancements were rigorously tested against real-world use cases, demonstrating improved security and reliability. This research contributes significantly to secure automotive communication protocols. The proposed solutions, tested and validated, pave the way for stronger, more reliable automotive systems. Future work may explore extending these solutions to diverse automotive environments and integrating with new communication standards. |