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Publicatie

Towards bridging the gap between modern and legacy automotive ECUs: A Software-based Security Framework for Legacy ECUs

Boekbijdrage - Boekhoofdstuk Conferentiebijdrage

Modern automotive architectures are complex andoften comprise of hundreds of electronic control units (ECUs).These ECUs provide diverse services including infotainment,telematics, diagnostics, advanced driving assistance, and manyothers. The availability of such services is mainly attainedby the increasing connectivity with the external world, thusexpanding the attack surface. In recent years, automotive originalequipment manufacturers (OEMs) and ECU suppliers havebecome cautious of cyber attacks and have begun fortifying themost vulnerable systems, with hardware-based security modulesthat enable sandboxing, secure boot, secure software updatesand end-to-end message authentication. Nevertheless, insecurelegacy ECUs are still in-use in modern vehicles due to priceand design complexity issues. Legacy ECUs depend on simplemicrocontrollers, that lack any kind of hardware-based security.This makes it essential to bridge the gap between modern andlegacy ECUs through software-based security by which cyberattacks can be mitigated, thus enhancing the security of vehicles.This paper provides one more step towards highly secure vehiclesby introducing a lightweight software-based security frameworkwhich provides legacy ECUs with software-based virtualizationand protection features along with custom security services.We discuss the motivation for pure software-based approaches,explore the various requirements and advantages obtained, andgive an initial insight of the design rationale. Furthermore, weprovide a proof of concept implementation and evaluation witha demonstrative use case illustrating the importance of suchframework in delivering new diagnostics security services tolegacy ECUs.
Boek: IEEE Connected and Autonomous Vehicles Symposium
Pagina's: 1 - 5
Aantal pagina's: 5
ISBN:978-1-7281-3616-5
Jaar van publicatie:2019
Toegankelijkheid:Open