Vehicle key rotation method, vehicle and storage medium

By acquiring the vehicle's real-time risk index and operating parameters, dynamically adjusting the key rotation conditions, and utilizing a quantum random number generator and a dual-channel communication mechanism for key updates, the problem of inflexible key management in vehicle communication systems is solved, thereby improving communication security and reliability.

CN121968095APending Publication Date: 2026-05-01ANHUI KAIYANG TECHNOLOGY CO LTD +1
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Patent Information

Application Number
CN202610082700.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-21
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

In existing technologies, the key management of vehicle communication systems adopts a fixed-cycle rotation, which cannot be flexibly adjusted according to the risk changes in the actual operating environment. This results in poor communication security and reliability, and the traditional key generation method is easy to predict and crack, posing a risk of physical tampering.

Method used

By acquiring the vehicle's real-time risk index and operating parameters, the key rotation conditions are dynamically adjusted to generate key update data. The key is then updated using a quantum random number generator and a dual-channel communication mechanism, ensuring the integrity and reliability of the key update process.

Benefits of technology

It enables intelligent and efficient rotation of vehicle network keys, which can respond to changes in vehicle risks in real time, improve communication security and reliability, and effectively resist network attacks.

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Abstract

The embodiment of the invention provides a vehicle key rotation method, a vehicle and a storage medium, and the method comprises the steps that a real-time risk index and vehicle operation parameters of the vehicle are obtained, the real-time risk index is used for determining the key rotation condition of the vehicle, and the vehicle operation parameters comprise the mileage or operation time of the vehicle; in response to the condition that the vehicle operation parameters meet the key rotation condition, rotation event data are obtained, and the rotation event data are used for representing event metadata corresponding to a key rotation event; secret key updating data are generated based on the rotation event data, and the secret key updating data are used for conducting communication verification on vehicle-mounted network data of the vehicle; and sending the key update data to the vehicle electronic control unit, so that the vehicle electronic control unit performs a key rotation operation based on the key update data. According to the method and the device, the technical problem of poor communication security and reliability caused by the fact that a vehicle-mounted network adopts a fixed period to alternate a vehicle-mounted key in the related technology is solved.
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