How does an access control system in a charging station work?
When presenting a charging card to a charging station, the control system performs two operations: authentication of the tag (the Hidden ID) and determination if it has sufficient credentials to open a specific lock (a.k.a. the white list lock in a charging station).
The key (NFC tag) and lock mechanism (White List) for a charging station work just like any other. For example, you may have a card with an NFC tag to enter the gates at your gym and nowadays you have a bus or train card which also work the same way.