Chalmers tekniska högskola / Institutionen för data- och informationsteknik (Chalmers)
Abstract
Remote wireless diagnostics and firmware updates are emerging technologies in the vehicular industry. They have many benefits, such as the ability for a manufacturer to perform firmware updates on a large population at the same time, without having to get vehicles to visit a workshop. Previous systems have relied on wired connections for performing these actions, and therefore the vehicle has not needed a lot of protection. By introducing wireless capabilities in the vehicles, vehicle manufacturers now face new risks which must be prevented or mitigated. We have studied such a wireless system, SIGYN, currently being developed by Volvo Personvagnar and Volvo IT in collaboration with Chalmers. We have written a reference client, which will be used for testing. We have examined security requirements and implemented security mechanisms to show how security in SIGYN could be improved. We have found a number of measures to increase security in the system and have implemented some of them. However, our work is only one step on the way to a fully secure system. Thus we finally provide a discussion of which further actions need to be taken
