What if the camera also included gps and time stamp information? That might make it harder to fake, because you would have to be roughly in the location that you were claiming that the footage occurred.
Are the signals from the gps satellites cryptographically signed?
Of course, the cameras would need to have very good physical security so that a person can't either extract the private key from it, or do things like replacing the camera part with something that just feeds in the data you want, and still getting it signed with the key.
I think the design that went into the ORWL pc might be good for this (which would quickly delete the private key if it detected tampering).
In order for one of these to be trusted though, there would have to be a trusted source demonstrating that it was constructed and configured correctly (rather than in a way that would allow faking). Maybe by having the construction and setup be recorded with other cameras of the same type which are already trusted, in a web of trust sort of thing? If one had enough of these cameras I don't think that the bootstrapping of the chain of trust would be too difficult.
But if the gps satellites cryptographically signed their messages, would that help this much? And would it be all that much of a cost for future gps satellites to sign their messages?
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What if the camera also included gps and time stamp information? That might make it harder to fake, because you would have to be roughly in the location that you were claiming that the footage occurred.
Are the signals from the gps satellites cryptographically signed?
Of course, the cameras would need to have very good physical security so that a person can't either extract the private key from it, or do things like replacing the camera part with something that just feeds in the data you want, and still getting it signed with the key.
I think the design that went into the ORWL pc might be good for this (which would quickly delete the private key if it detected tampering).
In order for one of these to be trusted though, there would have to be a trusted source demonstrating that it was constructed and configured correctly (rather than in a way that would allow faking). Maybe by having the construction and setup be recorded with other cameras of the same type which are already trusted, in a web of trust sort of thing? If one had enough of these cameras I don't think that the bootstrapping of the chain of trust would be too difficult.
It's pretty easy to fake GPS signal with the proper equipment. I remember seeing a video of a guy faking the GPS signal in order to cheat Pokemon Go.
Aw dang, ok.
But if the gps satellites cryptographically signed their messages, would that help this much? And would it be all that much of a cost for future gps satellites to sign their messages?