CPC H04L 63/1425 (2013.01) [H04L 9/0825 (2013.01); H04L 9/3242 (2013.01); H04L 63/0823 (2013.01); H04L 63/1433 (2013.01); H04W 4/48 (2018.02); H04W 80/02 (2013.01)] | 20 Claims |
1. A method performed by a first controller for providing security for a plurality of second controllers in an in-vehicle network, the method comprising:
transmitting an inherent information request to a suspicious controller of the plurality of second controllers for an inherent information of the suspicious controller, the inherent information request including a certificate assigned to the first controller;
receiving an encrypted inherent information of the suspicious controller from the suspicious controller;
comparing a decrypted inherent information with a pre-stored inherent information;
determining the suspicious controller to be an anomalous controller when the decrypted inherent information is different from the pre-stored inherent information;
in response to receiving an update request from a backend server for a specified controller out of the plurality of second controllers, transmitting the inherent information request including the certificate assigned to the first controller to the specified controller; and
performing a controller information update by receiving an encrypted inherent information of the specified controller from the specified controller and updating the decrypted inherent information in correspondence with the specified controller.
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