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Detecting GNSS misbehavior leveraging secure heterogeneous time sources. (arXiv:2305.03385v1 [cs.CR])
cs.CR updates on arXiv.org arxiv.org
Civilian Global Navigation Satellite Systems (GNSS) vulnerabilities are a
threat to a wide gamut of critical systems. GNSS receivers, as part of the
encompassing platform, can leverage external information to detect GNSS
attacks. Specifically, cross-checking the time produced by the GNSS receiver
against multiple trusted time sources can provide robust and assured PNT. In
this work, we explore the combination of secure remote, network-based time
providers and local precision oscillators. This multi-layered defense mechanism
detects GNSS attacks that induce even …
attacks critical critical systems detect external global gnss information navigation platform satellite systems threat vulnerabilities