GPS Spoofing Detection by Leveraging 5G Positioning Capabilities

Global Positioning System (GPS) is the most predominant non-authenticated navigation system used in transportation networks for geolocation and timing. The security of GPS is not addressed at the design level, and its implementation is public knowledge, making all GPS-equipped devices susceptible to GPS spoofing attacks. Existing solutions such as cryptography are either not backward compatible or too expensive to implement. Here, we propose an approach without such drawbacks. We present a novel technique to detect GPS spoofing attacks by comparing the final estimated location based on the GPS measurements with that derived by 5G New Radio positioning signals. In case of discrepancy, we detect the GPS spoofing attack and bypass the attacker by replacing the GPS-based localization with 5G-based localization. Our experiments show a detection rate above 98%.