Vehicle-mounted CAN bus encryption communication method, control device and readable storage medium

Abstract

The invention discloses a vehicle-mounted CAN bus encryption communication method, a control device and a readable storage medium, and the vehicle-mounted CAN bus encryption communication method comprises the following steps: generating a temporary key according to a preset period, encrypting the temporary key to obtain a key ciphertext, and sending the key ciphertext to each ECU module through a vehicle-mounted CAN bus; encrypting a message plaintext by using the temporary key to obtain a message ciphertext; performing message authentication on the message ciphertext by using the temporary key to obtain a first authentication code and a second authentication code; judging whether the first authentication code is consistent with the second authentication code or not; and if the first authentication code is consistent with the second authentication code, decrypting the message ciphertext by using the temporary key to obtain the message plaintext. By implementing the method and the device, the confidentiality, the integrity and the authenticity of the message data are ensured, the effect of preventing the message replay attack is achieved, and the safety of the vehicle-mounted CAN bus communication is ensured.

Description

technical field [0001] The invention relates to the field of vehicle CAN communication, in particular to a vehicle CAN bus encryption communication method, a control device and a computer-readable storage medium. Background technique [0002] With the rapid development of intelligent networked vehicles and the continuous improvement of intelligent interaction and intelligent driving technology, the issue of vehicle information security has become increasingly prominent. At present, the CAN (Controller Area Network) bus is still the main method of in-vehicle communication for intelligent networked vehicles. Unit electronic control unit, also known as "driving computer", "vehicle computer", etc.) and actuators, its controllability directly affects the safety of the vehicle. There are obvious differences between the results of the Internet of Vehicles and the traditional network being attacked. After the Internet of Vehicles is successfully breached, it may not only be the una...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a vehicle-mounted CAN bus encryption communication method, a control device and a readable storage medium, aiming to solve the problem of lack of message data encryption, source authenticity verification and no replay attack prevention measures in the vehicle-mounted CAN bus communication technical problem

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