Location Estimation and Recovery using 5G Positioning: Thwarting GNSS Spoofing Attacks

• URL: http://arxiv.org/abs/2310.14885v1
• Date: Mon, 23 Oct 2023 12:54:13 GMT
• Title: Location Estimation and Recovery using 5G Positioning: Thwarting GNSS Spoofing Attacks
• Authors: Aneet Kumar Dutta, Sebastian Brandt, Mridula Singh,
• Abstract summary: cryptographic spoofers can prevent safe navigation and tracking of road users. Spoofing can lead to loss of assets, inaccurate fare estimation, enforcing the wrong speed limit, miscalculated toll tax, passengers reaching an incorrect location. We design the Location Estimation and Recovery(LER) systems to estimate the absolute position using the combination of correct and 5G positioning.
• Score: 2.8711436763354237
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The availability of cheap GNSS spoofers can prevent safe navigation and tracking of road users. It can lead to loss of assets, inaccurate fare estimation, enforcing the wrong speed limit, miscalculated toll tax, passengers reaching an incorrect location, etc. The techniques designed to prevent and detect spoofing by using cryptographic solutions or receivers capable of differentiating legitimate and attack signals are insufficient in detecting GNSS spoofing of road users. Recent studies, testbeds, and 3GPP standards are exploring the possibility of hybrid positioning, where GNSS data will be combined with the 5G-NR positioning to increase the security and accuracy of positioning. We design the Location Estimation and Recovery(LER) systems to estimate the correct absolute position using the combination of GNSS and 5G positioning with other road users, where a subset of road users can be malicious and collude to prevent spoofing detection. Our Location Verification Protocol extends the understanding of Message Time of Arrival Codes (MTAC) to prevent attacks against malicious provers. The novel Recovery and Meta Protocol uses road users' dynamic and unpredictable nature to detect GNSS spoofing. This protocol provides fast detection of GNSS spoofing with a very low rate of false positives and can be customized to a large family of settings. Even in a (highly unrealistic) worst-case scenario where each user is malicious with a probability of as large as 0.3, our protocol detects GNSS spoofing with high probability after communication and ranging with at most 20 road users, with a false positive rate close to 0. SUMO simulations for road traffic show that we can detect GNSS spoofing in 2.6 minutes since its start under moderate traffic conditions.

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