Management method for the renewal of authentication certificates of connected components

A method for managing a renewal of an authentication certificate uniquely assigned to a connected component, in which said authentication certificate is valid for a validity period until an expiration date and is expired beyond the expiration date, said authentication certificate serving as a means of authenticating the connected component to a remote update manager server as long as said authentication certificate is valid, the method implementing a renewal phase comprising at least the following successive steps:

• a remote connection step during which the connected component is connected to a remote certificate renewal server,
• a renewal request step during which the connected component issues a certification renewal request to the remote certificate renewal server for a new validity period, and
• a checking step during which the remote certificate renewal server checks whether the authentication certificate is valid or expired;
• and wherein if the authentication certificate is valid at the checking step, then the remote certificate renewal server automatically renews the authentication certificate for the new validity period;
• otherwise, if the authentication certificate has expired at the checking step, then:
• the remote certificate renewal server transmits to a remote database an identifier of the connected component associated with its certification renewal request,
• the identifier of the connected component and its certification renewal request are manually controlled by a control operator having access to the remote database;
• and
• the authentication certificate is renewed or not for the new validity period by the control operator depending on its manual control;
• the method implementing, before the renewal phase, a certification phase during which the connected component is physically connected to a local server, and said local server generates, signs, then assigns the authentication certificate to said connected component.