Continental Automotive Technologies Gmbh

Mounir Elorch

Nicolas Guinart

Fabien Deleplanque

Jean-Philippe Boisset

Abir Bourounia

A method for preventing identity theft for a specific electronic control unit of a motor vehicle, when the specific electronic control unit sends a plaintext message, which contains measurement data, to a central electronic control unit of the motor vehicle. The method includes: generating an identifier for selecting a hashing algorithm; acquiring at least one parameter common to the central electronic control unit and the specific electronic control unit; generating a first digital hashing fingerprint of the combination of the plaintext message and of the common parameter, from the identifier for selecting a hashing algorithm; forming a data frame that includes the plaintext message, the identifier for selecting a hashing algorithm and the first digital hashing fingerprint; and sending the data frame to the central electronic control unit.

Method for preventing identity theft for a specific electronic control unit of a motor vehicle

A method for the secure transmission of messages in real time between a transmitter and a receiver that are housed on board a motor vehicle. The method includes at least a first step that is executed during a current driving cycle of the motor vehicle and consists in the receiver comparing a received first transmitter authentication code with a first receiver authentication code. The first message being rejected if the first transmitter authentication code differs from the first receiver authentication code, and the first message being accepted if the first transmitter authentication code is identical to the first receiver authentication code.

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Toulouse, France

Mounir Elorch