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EV6 Wind AWD w/Tech Package
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Pretty cool! Excited to have this feature finally, even if it is just at EVgo for now.

 

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Pretty cool! Excited to have this feature finally, even if it is just at EVgo for now.

Woohoo! I think an app update is needed (and isn't yet pushed to the U.S. app store, at least not for me). I see my EV6 in the app, but none of the options that the article mentions should be there to enroll.
 

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Kia EV6 Wind
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So, just to get the terminology straight: Autocharge+ is EVgo's implementation of Plug and Charge, ISO 15118.. It is not related to Autocharge (no plus), other than being a way for the car to ID itself to the charger.

Technical details, for the curious. CCS chargers establish a TCP/IP connection between the car and the charger, for communicating state of charge, supported charge rates, etc. Plug and Charge allows the charger to query the car for a unique identifying certificate, just like kiaevforums.com has for its HTTPS connection. The charger verifies that it's a valid certificate issued by Kia and notes the car's unique id to associate with your account. This is why you have to plug into a charger to enroll. Once enrolled, you can just plug in.

The original Autocharge was much less secure. All TCP/IP network adapters have a MAC address. In theory this is unique worldwide, but it's easy to spoof because it's just a number and some devices don't actually have unique ones. (VW cars can't use Autocharge because they all have the same MAC address.) Autocharge used this as in ID. Eventually, someone would come up with a way to skim your MAC address just like a card skimmer at a gas pump.

You can't do this with a certificate because it's signed by Kia (or whichever manufacturer) and it's never sent in the clear to the charger.
 

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So, just to get the terminology straight: Autocharge+ is EVgo's implementation of Plug and Charge, ISO 15118.. It is not related to Autocharge (no plus), other than being a way for the car to ID itself to the charger.

Technical details, for the curious. CCS chargers establish a TCP/IP connection between the car and the charger, for communicating state of charge, supported charge rates, etc. Plug and Charge allows the charger to query the car for a unique identifying certificate, just like kiaevforums.com has for its HTTPS connection. The charger verifies that it's a valid certificate issued by Kia and notes the car's unique id to associate with your account. This is why you have to plug into a charger to enroll. Once enrolled, you can just plug in.

The original Autocharge was much less secure. All TCP/IP network adapters have a MAC address. In theory this is unique worldwide, but it's easy to spoof because it's just a number and some devices don't actually have unique ones. (VW cars can't use Autocharge because they all have the same MAC address.) Autocharge used this as in ID. Eventually, someone would come up with a way to skim your MAC address just like a card skimmer at a gas pump.

You can't do this with a certificate because it's signed by Kia (or whichever manufacturer) and it's never sent in the clear to the charger.
In theory they could do this with PKI. The EV6 holds the private key and transfers the public key via the CCS connection and visa versa. Then they can encrypt communciation with the respective keys and be able to decrypt. Not sure what the benefit to doing this would be except higher fidelity security.
 

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2022 Kia EV6 Wind eAWD w/ Technology Package in Interstellar Grey
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You need version 7.13 of the EVGO app to see the Autocharge Enroll

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