Fecha de publicación: 01/07/2020 Fuente: Wipo "IOT" Method for establishing secure communication between a plurality of IoT devices in one or more vehicles include: provisioning the plurality of IoT devices by providing a unique identification, a digital identity token and a cryptographic key to each of the plurality of IoT devices; establishing a secure communication line between the plurality of IoT devices by authenticating respective communication lines between respective IoT devices and issuing a digital certificate to the respective communication lines; grouping the plurality of IoT devices into different groups based on a predetermined criteria; and including a group membership for a group of the different groups in an attribute certificate indicating group characterization.