Abstract: A method includes receiving, by a first computing device, a first message from an authorization server over a first network. The first message includes an access token for a computing service, including a permission value defining an access time period, and a refresh token defining a refresh time period. The method further includes storing the access token, the refresh token, and the permission value in a memory of the first computing device. The method further includes receiving, by the first computing device over a second network, a second message including a request for the access token from the second computing device and selectively providing the access token to the second computing device based on the stored access token, the stored refresh token, and the stored permission value.

Abstract: The invention relates to a method for establishing a wireless communication channel between a vehicle and a vehicle accessory. The method comprises, in the vehicle: detecting a wired communication channel between the vehicle and the accessory; transmitting a vehicle identifier from the vehicle to the accessory via the wired communication channel; receiving an accessory identifier; deriving a unique code based on the vehicle identifier and the accessory identifier using a predetermined function; broadcasting the unique code by a vehicle wireless transceiver.

Abstract: The invention relates to a method for establishing a wireless communication channel between a vehicle and a vehicle accessory. The method comprises, in the vehicle: detecting a wired communication channel between the vehicle and the accessory; transmitting a vehicle identifier from the vehicle to the accessory via the wired communication channel; receiving an accessory identifier; deriving a unique code based on the vehicle identifier and the accessory identifier using a predetermined function; broadcasting the unique code by a vehicle wireless transceiver.