System and method for secure communication between on-board electronic control units

By providing secure key sets and authentication data between vehicle ECUs, the security vulnerability caused by the increase in the number of ECUs is solved, enabling secure communication and protection against network threats, and ensuring the security and integrity of the vehicle system.

CN115776385BActive Publication Date: 2026-07-21NAGRAVISION SA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NAGRAVISION SA
Filing Date
2019-01-25
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The increased number of electronic control units (ECUs) in vehicle computer systems leads to security vulnerabilities, making them susceptible to cyber threats and compromising existing secure connectivity methods.

Method used

By deploying a security architecture in the vehicle, a first ECU provides a set of security keys and authentication data to multiple ECUs to achieve message authentication, including message count attributes and time attributes, ensuring secure communication between ECUs.

Benefits of technology

It enables secure communication between ECUs, prevents malicious network threats, ensures the vehicle network is secure before operation, and takes restrictive measures to protect the integrity of the vehicle system when an ECU is damaged.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to secure communication between electronic control units in a vehicle. Aspects of the invention present systems, methods, and apparatuses for enabling secure communication between electronic control units (ECUs) in a vehicle. The system can include a first ECU and a second ECU from a plurality of ECUs in a vehicle. The first ECU enables secure communication between the plurality of ECUs by providing the second ECU with authentication data for authenticating messages exchanged with a third ECU, and providing the third ECU with a set of security keys to enable the third ECU to securely exchange messages with the second ECU. The second ECU receives a secure message from the third ECU, the secure message being cryptographically signed with a security key from the set of security keys provided to the third ECU, and the second ECU authenticates the secure message by comparing the authentication data with an authentication signal.
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