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Satellite-navigation systems such as GPS are at risk of jamming

Satellite-navigation systems such as GPS are at risk of jamming
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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.

How Galileo performed its authenticated positioning fix - GPS World

How Galileo performed its authenticated positioning fix News from the European Space Agency (ESA) In a first for any satellite navigation system, Galileo has achieved a positioning fix based on open-service navigation signals carrying authenticated data. Intended as a way to combat malicious spoofing of satnav signals, this authentication testing began at ESA’s Navigation Laboratory the same site where the very first Galileo positioning fix took place back in 2013. These historic first authenticated signal position, velocity and timing fixes were made using a total of eight Galileo satellites for around two hours on Nov. 18. The tests represent a first proof of concept for an eventual operational service offering positioning with authenticated data to users.

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