Lockheed Martin challenges narrative on GPS vulnerability

Re:Lockheed Martin challenges narrative on GPS vulnerability... by Salmonfisher11 on Tuesday December 03, 2024 @01:19PM (#42309326)

Galileo offers cryptographic protection (OSNMA) of their positioning data. So not spoofable. For free.

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Re:Lockheed Martin challenges narrative on GPS vulnerability... by toomuchtodo on Tuesday December 03, 2024 @04:12PM (#42311507)

Any insight as to why newer GPS satellites do not offer similar capabilities?

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Re:Lockheed Martin challenges narrative on GPS vulnerability... by bean-weevil on Tuesday December 03, 2024 @09:07PM (#42313867)

The GPS project began in 1973. Digital signatures were invented in 1976. I'm guessing adding it on after the fact would have been very expensive.

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Re:Lockheed Martin challenges narrative on GPS vulnerability... by toomuchtodo on Tuesday December 03, 2024 @09:11PM (#42313884)

There have been progressive improvements as new satellites are brought into service, and those end of life retired. Perhaps backwards compatibility?

https://en.wikipedia.org/wiki/GPS_signals#Legacy_GPS_signals

https://en.wikipedia.org/wiki/GPS_signals#Modernization_and_...

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Re:Lockheed Martin challenges narrative on GPS vulnerability... by evanjrowley on Tuesday December 03, 2024 @02:37PM (#42310298)

Link for reference: https://www.gsc-europa.eu/galileo/services/galileo-open-serv...

Recent news: https://www.euspa.europa.eu/newsroom-events/news/galileo-get...

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Re:Lockheed Martin challenges narrative on GPS vulnerability... by lxgr on Tuesday December 03, 2024 @06:17PM (#42312777)

Not quite unspoofable, at least once the signal has been received for time-delayed rebroadcasting/meaconing.

But spoofing does become detectable by any receiver with a sufficiently accurate clock (I think for complete protection it would have to be an atomic clock though).

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