Method and equipment for performing safety communication between T_Box equipment and ECU equipment in internet of vehicles system

Abstract

The invention aims at providing a method and equipment for performing safety communication between T_Box equipment and ECU equipment in an internet of vehicles system. The method specifically comprises the following steps: the T_Box equipment send first information to the corresponding ECU equipment; the ECU equipment generates second information according to the first information, a hash value ofthe main key and the second random number generated by the ECU equipment; the T_Box equipment generates third information according to the second information, the first random number and the third random number; the T-Box equipment generates the first key according to the second information and the third random number, and identity identifier information of the T_Box equipment and an identity identifier of the ECU equipment; the T_Box equipment encrypts a to-be-issued instruction based on the first key; the ECU equipment generates a second key according to the third information, the second random number, the identity identifier information of the T_Box equipment and the identity identifier of the ECU equipment; and the ECU equipment decrypts the encrypted instruction according to the second key so as to acquire the instruction. Compared with the prior art, the safety communication between the T_Box equipment and the ECU equipment is realized.

Description

technical field [0001] The invention relates to the technical field of the Internet of Vehicles, in particular to a technology for secure communication between a T_Box device and an ECU device in the Internet of Vehicles system. Background technique [0002] With the diversification, networking and intelligence of the Internet of Vehicles applications, the security attack surface of the Internet of Vehicles is increasingly threatened. An important core component of the Internet of Vehicles is the T-Box (Telematics Box) control unit, which can be used to Exchange data information between the ECU (Electronic Control Unit) inside the car and the outside of the car. However, at present, the communication between T-Box and ECU is still transmitted on the CAN (Controller Area Network) bus in clear text, but the CAN bus communication technology does not consider the information security feature, and the sending and receiving data packets are not authenticated and authenticated. da...

AI Technical Summary

Problems solved by technology

However, the existing two-way authentication scheme not only has many interactive processes, but also uses more complex encryption algorithms, and the T-Box equipment and ECU equipment in the Internet of Vehicles are embedded system equipment with relatively tight resources, making the existing security It is difficult to directly apply the technical solution to the certification and communication between T-Box and ECU

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