Method for transmitting and checking the validity of configuration data in an electronic system, and associated electronic system and computer program product

This method comprises the steps of generating an elementary signature for each electronic board from stored configuration data, transmission to each electronic board of the elementary signature, calculation by each electronic board of the signature variable as a function of the configuration variables, and checking by each electronic board of the validity of the stored configuration variables using the received elementary signature and the signature variable. The method comprises the implementation step for each electronic board for which the configuration variables are considered invalid, and comprises the retrieval of the configuration data specific to this board, and the modification of the configuration variables starting from the configuration data retrieved.