A method of provisioning a mobile communication device with key functionality is disclosed. The method comprises a web portal receiving a request to add key functionality to a mobile communication device and a vehicle. The method comprises registering the mobile communication device via a vehicle key server as a precondition to add a key and a salt to the mobile communication device and a vehicle, wherein the key and the salt are codes. The method comprises accessing a vehicle key data store via the vehicle key server, wherein the data store comprises keys and salts. The method comprises transmitting the key and the salt to a trusted service manager (TSM) server via the vehicle key server; transmitting the salt to the vehicle, and transmitting the salt and the key to the mobile communication device, whereby the mobile communication device is enable to command the vehicle to unlock, lock, or start.