Using your cell phone as a car key

[Alan Karp]

More and more cars are supporting this, so I wondered how you could let someone else drive your car without giving up your phone.  At least one car, the Kia Niro EV, lets you delegate with a text message. The Hyundai version says, "you can share car keys for a limited time or allow only certain features. For example, it is possible to send a delivery man your digital key that can only open the trunk so that he/she can put the package in it, or lend a car to your friend for only a limited time."

These sound like capabilities to me, but I haven't been able to find any details.

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Alan Karp

[๏̯͡๏ Jasvir Nagra]

There are several standards bodies - https://carconnectivity.org/

Apple also has a thing called Car Key. https://support.apple.com/en-us/HT211234

As mentioned in call, they're much less like caps than you'd imagine.

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Jasvir Nagra

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[Alan Karp]

It seems a little capability-like, since you send something to the other person's phone rather than entering some information in your car.  On the other hand, I found one article that said you could only share with 4 others because the car stores private keys.  The other thing not capability-like is that nobody mentions sharing a shared key.

I've started reading the (500 page) spec.  Thanks for the link.

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Alan Karp

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[Jonathan Frederickson]

If it’s not a capability, it should be (and feels like a missed opportunity). Shared car keys are after all one of the most common examples to demonstrate capabilities!

On Sep 7, 2022, at 12:26 AM, ๏̯͡๏ Jasvir Nagra <j...@nagras.com> wrote:



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