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Next steps in GNSS Receiver Security Validated with OSNMA Testing

At least three commercial organizations have initiated testing of the Galileo Open Service Navigation Message Authentication (OSNMA) service, concurrently with the European GNSS Agency (GSA) and the European Space Agency (ESA) themselves. Results to date show success. OSNMA offers end-to-end authentication on a civilian signal, protecting receivers from spoofing attacks. OSNMA is pioneered by the Galileo Program. Galileo OSNMA is an authentication mechanism that allows GNSS receivers to verify the authenticity of the information transmitted by the satellite itself making sure that the data they receive are indeed from Galileo and have not been modified in any way. OSNMA is a novel and unique service provided free-of-charge to all users, contributing to increase the overall security of GNSS-based applications and services.

Tests begin of Galileo s OSNMA signal authentication service - GPS World

In a first for any satellite navigation system, Galileo has achieved the first position fix based on navigation signals carrying authenticated data, according to the European Space Agency. Galileo’s Open Service Navigation Message Authentication (OSNMA) is intended as a way to combat malicious spoofing of satnav signals. OSNMA receivers successfully calculated an OSNMA-protected position fix after Galileo satellites started transmitting authentication data at 15:28 UTC on Nov. 18, 2020. The first tests used eight Galileo satellites for around two hours on Nov. 18. Tests have continued ever since, for intermittent periods, and will continue over the next months ahead of a public observation phase.

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