3 ms·
Isn't there technology that can prevent this kind of replay attack? And shouldn't the maker of a $50,000 car take advantage of this kind of technology to protec
by inetsee 4y ago
Isn't there technology that can prevent this kind of replay attack? And shouldn't the maker of a $50,000 car take advantage of this kind of technology to protect their car buyers? This kind of article would make me much less likely to buy this car.
- colechristensen 4y agoYes, a key. There are also various things that can be done to prevent relay attacks, but a good key combined with a very short range interlock device is much better than these stupid fobs.
- AdamJacobMuller 4y agoReplay attacks are easy to mitigate but this isn't exactly what this is. This is a RELAY attack which is harder to mitigate. Still very possible to mitigate by using very strict timing parameters which can detect the physical distance by things which are immutable (speed of rf transmission) vs infer it via limiting TX power.
- sebk 4y agoThe Car Connectivity Consortium recently standardized Digital Key Release 3.0 (see https://global-carconnectivity.org/ https://global-carconnectivity.org/) which leverages UWB to provide precise, real-time spatial data that promises to be very effective at preventing relay attacks. Replay attacks, on the other hand, are mitigated by the application protocol through short-lived ranging keys. A few cars implement Digital Keys 2.0, which uses NFC (Notably BMW in all their new models, but also some models in the Hyundai-Kia group). I expect most manufacturers implementing their own Bluetooth variation to switch over relatively quickly.