Method for securing the time synchronization of an ethernet on-board network

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12255735
APP PUB NO 20230006751A1
SERIAL NO

17781520

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Abstract

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A method for securing the time synchronization of an Ethernet on-board network of a motor vehicle, by: determining a delay time of a first signal on a first connecting path between a first control unit of the network and a second control unit of the network; determining a maximum speed of the first connecting path on the basis of the delay time; and determining a type of a transmission medium of the first connecting path on the basis of the maximum speed. The determination of the delay time of a first signal, the determination of the maximum speed of the first connecting path, and the determination of the type of a transmission medium of the first connecting path result in an entropy source being formed that is used to ascertain at least one dynamic key for the connecting path to encrypt a time synchronization message for the connecting path.

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Patent Owner(s)

Patent OwnerAddress
CONTINENTAL AUTOMOTIVE TECHNOLOGIES GMBHCONTINENTAL-PLAZA 1 HANNOVER 30175

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Zinner, Helge Hannover, DE 43 152

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