A mechanism is provided for authentication and authorization of an access to a resource by a device may be provided. The device may be a system-on-a-chip resource weak device. The mechanism forms a federation of a group of the devices in a neighborhood. The devices are wireless communication enabled. The mechanism builds a representational vector for each device of the federation of devices during an initial authentication procedure for the device. The representational vector comprises characteristic parameters of the device and neighboring devices. The mechanism uses an access token based authorization process for accessing the resource. The access token is generated during the initial authentication procedure, in which the representational vector of the device is used to confirm that a device that is new to the federation is in the neighborhood of already federated devices.