Automotive architecture has become a large network of Electronic Control Units (ECUs). From critical ECUs that can affect passengers' lives to less critical units coexist in the network. The complexity of the system is intensified over the external data sources including sensors or Over-The-Air (OTA) updates. Increasing electrification and software-defined vehicles made OTA updates a frequent and necessary part of the product lifecycle to fix vulnerabilities. But threat actors can inject malicious firmware during these updates, bypass security checks, or perform unauthorized access to the car’s internal network. Hardware Security Modules (HSMs) serve high-performance secure cryptography computations for real-time applications in an isolated environment.