GPS spoofing.

[Peter Fairbrother]

Peter Fairbrother wrote:

> I think there are two issues here, control of the vehicle and GPS 
> spoofing. I have heard that RSA is used in the setup of control links, 
> which makes sense.
> 
> The use of RSA in GPS anti-spoofing technology is a little more 
> uncertain, but it is also possible. I think it is most unlikely to be 
> used as a prng stream generator, but it's use in distributing 
> verification and/or prng stream keys seems well within normal crypto 
> practices.

Apparently they also use 4096-bit RSA for the control links to the GPS 
satellites.



-- Peter Fairbrother