Method of securing a computer program, corresponding device, update method and update server

摘要

The method involves delivering output data (31) based on input data (20) during executing of critical portions, and delivering another output data (32) based on the input data during executing a checking program. The output data are compared, and anomaly information (33) is generated when the output data are different. The anomaly information is transmitted to a remote server, and a primary computer program (11) is continued based on the output data when one of the critical portions of the program is activated. Independent claims are also included for the following: (1) a device for securing utilization of a primary computer program driving a data receiving and delivery device (2) a method for updating a computer program driving a data receiving and delivery device (3) a server for updating a computer program driving a data receiving and delivery device.