Using the Trusted Platform Module to Generate Secure Logs for Automotive Systems

Modern automotive systems are starting to incorporate complex functional software features. With an increase in system complexity comes different requirements for security. In this paper, we propose a design for secure logging that uses the functionalities of an automotive Trusted Platform Module. Our logging solution guarantees log integrity, authenticity, non-repudiation and tamper-proofness, while assuming a threat actor that has physical access to the storage medium of the protected logs. An experimental performance assessment was conducted to measure the performance of the Trusted Platform Module functions used in logging with different cryptographic and hashing algorithms.