Method, controller and system for detecting infringements of the authenticity of system components

A controller for detecting infringements of the authenticity of a system component, said controller comprising:

• a transceiver configured to send an authentication request to an authentication device of the system component, and to receive a first authentication code as a response to the authentication request, wherein said first authentication code is calculated by applying a shared one-way function to a first identification code, stored in the authentication device, for the system component;
• a database configured to store a second identification code for the system component;
• and
• a calculator configured to calculate a second authentication code by applying the shared one-way function to the second identification code stored in the database, and to compare the first authentication code with the second authentication code for detecting infringements of the authenticity of the system component, said controller being configured to replace the second identification code stored in the controller with the calculated first authentication code received by the controller;
• said authentication device configured to replace the first identification code stored in the authentication device with the calculated first authentication code.

A system for detecting infringements of the authenticity of a system component, said system comprising;

• an authentication device configured to calculate a first authentication code by applying a shared one-way function to a first identification code for the system component stored in the authentication device;
• and
• a controller—which includes
• a transceiver configured to send an authentication request to the authentication device, and to receive the first authentication code from the authentication device as a response to the authentication request,
• a database configured to store a second identification code for the system component, and
• a calculator configured to calculate a second authentication code by applying the shared one-way function to the second identification code stored in the database, and to compare the first authentication code with the second authentication code for detecting infringements of the authenticity of the system component, said controller being configured to replace the second identification code stored in the controller with the calculated first authentication code received by the controller;
• said authentication device configured to replace the first identification code stored in the authentication device with the calculated first authentication code.