Secure automotive on-board protocols: A case of over-the-air (OTA) firmware updates
The software running on electronic devices is regularly up- dated, these days. A vehicle consists of many such devices, but is operated in a completely dierent manner than consumer devices. Update opera- tions are safety critical in the automotive domain. Thus, they demand for a very well secured process. We propose an on-board security archi- tecture which facilitates such update processes by combining hardware and software modules. In this paper, we present a protocol to show how this security architecture is employed in order to achieve secure rmware updates for automotive control units.