Research Article
Secure CV2X Using COTS Smartphones over LTE Infrastructure
@INPROCEEDINGS{10.1007/978-3-031-25538-0_31, author={Spandan Mahadevegowda and Ryan Gerdes and Thidapat Chantem and Rose Qingyang Hu}, title={Secure CV2X Using COTS Smartphones over LTE Infrastructure}, proceedings={Security and Privacy in Communication Networks. 18th EAI International Conference, SecureComm 2022, Virtual Event, October 2022, Proceedings}, proceedings_a={SECURECOMM}, year={2023}, month={2}, keywords={CV2X COTS devices LTE Secure communication TEE Trustzone}, doi={10.1007/978-3-031-25538-0_31} }- Spandan Mahadevegowda
Ryan Gerdes
Thidapat Chantem
Rose Qingyang Hu
Year: 2023
Secure CV2X Using COTS Smartphones over LTE Infrastructure
SECURECOMM
Springer
DOI: 10.1007/978-3-031-25538-0_31
Abstract
With the proliferation of vehicle technologies to support sophisticated features like assisted and autonomous driving, advanced communication protocols like cellular-vehicle-to-everything (CV2X) have been proposed. However, practical large-scale deployments have been hindered due to caveats such as hardware, security, and cellular infrastructure demands. This work presents and evaluates a practical approach to utilizing ARM TrustZone to turn commercial off-the-shelf smartphones into secure CV2X radios that communicate over the LTE network. These smartphone-based CV2x radios communicate with each other via an intermediary server placed outside/within the LTE infrastructure without affecting normal operations of the phone, like using navigation, calls, and music. Vehicle owners would only have to install the CV2X application to use their smartphones as CV2X radios. The approach would boost the adoption of CV2X by reducing the requirement for dedicated hardware and reusing existing infrastructure. In this work, we empirically evaluate the on-device overhead coupled with various network topologies concerning the location of an intermediary server and the LTE infrastructure. We show that our proposed approach can meet the required real-time constraints for safe CV2X operation while ensuring the integrity of the on-device communication from manipulation by remote attackers.
