METHOD OF SECURING A COMPUTER PROGRAM. AND CORRESPONDING DEVICE, METHOD OF UPDATING AND UPDATE SERVER

摘要

A method for securing use of a primary computer program driving at least one data receiving and delivery device. The method implements a secondary computer checking program, different from the primary program and capable of delivering the same output data as at least a portion of the primary program, referred to as the critical portion, in the presence of identical input data. The following steps are performed when at least one of the critical portions of the primary program is activated: executing the critical portion, delivering first output data based on input data; executing the checking program, delivering second output data based on the input data; comparing the first and second output data and generating anomaly information, if the first and second output data are different; transmitting the anomaly information to a remote server; and continuing the primary program, based on the first and second output data.