After enabling smart card support, as described in Configuring smart card login, do the following to verify that a smart card is working:
Insert the smart card into the reader.
Open the Terminal.app and run the following command:
% sc_auth identities
You should see that the smart card has paired to the Active Directory user. For example:Copy
Paired identities which are used for authentication:
9800A35AD2A41AEFB03CF431B76BA194E22F48EE pivau1 - Certificate For PIV Authentication (PIV AU 1)
Note: You never need to pair your smart card manually. If you see the following SmartCard Pairing dialog, that means that the smart card support is not ready. Please re-check the smart card support GP and then excute the command adgpupdate.