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It mentions protecting against jamming, but I hope they also explicitly make efforts against spoofing. I think that's the bigger security concern when your rece
by buckhx 11y ago
It mentions protecting against jamming, but I hope they also explicitly make efforts against spoofing. I think that's the bigger security concern when your receiver thinks it has the right position, but an attacker is providing the signals and rerouting at their desire. Currently only tightly controlled military receivers have anti spoofing security distributed via the P(Y) code.
- avar 11y agoHow would this work while still retaining the ability to have e.g. indoor GPS repeaters?[1]. 1. http://www.gps-repeaters.com http://www.gps-repeaters.com
- buckhx 11y agoIt's a tricky problem. I could see enterprise solutions for private GPS networks that have signed messages similar to an asymmetric JWT signature. That way the message can be passed around and the client can assert if the message has been tampered with. That approach requires the satellite networks to have knowledge of the key pairs for each client. Not something you'd see the government provide, but a possibility for commercial applications.