Patent ID: 11960611
Assignee: ROBERT BOSCH GMBH
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 10:
11. A cryptographic module for a computing device for control of a motor vehicle, the cryptographic module configured to:
while at least one processor of the computing device performs processing of a plurality of first messages received by the at least one processor from at least one external unit for the motor vehicle control, receive, as a single message block, a plurality of second messages from the computing device that were previously received individually by the computing device from at least one external unit, wherein the receipt as the single message block is due to a delay by the at least one processor to provide the second messages until (a) expiration of a predefined time period during which the receipt of the second messages by the computing device occurred or (b) a number of the second messages received by the computing device reaches a predefined threshold number;
execute an authentication procedure respectively for each of the second messages individually, the respective authentication procedure including (a) a respective check of whether the respective individual one of the second messages received by the cryptographic module is authentic or (b) a respective assignment of a respective cryptographic signature to the respective individual one of the second messages; and
provide results of the authentication procedure to the computing device, the at least one processor of which is configured to delay the processing of any respective one of the second messages for the motor vehicle control until after a respective one of the results of the authentication procedure corresponding to the respective one of the second messages is received by the computing device from the cryptographic module.