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0 pointsadaml_62314y ago0 comments

The instruction might be from a trusted source but how do you guarantee that it is in the correct place.

How could people resist creating a loop of instructions...

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4 comments · 1 top-level

devicenull14y ago· 3 in thread

I guess you could encode the GPS coordinates of the marker within it, and have the car verify that. Still not a great way of doing it though.

arethuza14y ago

If you know your location via GPS and connection to the net, why not just look up the instructions relevant to that location?

mike-cardwell14y ago

And when the key is compromised, have fun replacing every single QR code.

buro914y ago

But if the signs are electronic, as in... providing the location of the nearest empty parking space... then updating them should be effortless.

Lots of assumptions here from everyone about how the signs are implemented and what the QR codes contain, but the general gist is that they could be secured. Assuming otherwise is also an assumption.

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