Secure data-transmission method for controller area networks, transmits data in a data bus on a means of transport like a motor vehicle

摘要

Control devices (2) link via a data bus (1). Data is exchanged via the data bus corresponding to a data bus protocol. User data and corresponding message identification/addressing data is prepared for transmission by a micro-controller (3) on a control device (2). A communications controller (4) uses a block check code to process and encode data according to the data bus protocol.