In-vehicle network safety communication system and method

Abstract

The invention provides an in-vehicle network safety communication system and method. The in-vehicle network safety communication system comprises a TSP platform, a central gateway, a domain controllerand ECU equipment. The TSP platform is connected with the central gateway through a network, the central gateway is connected with the one or more domain controllers through a network, and the domaincontrollers are connected with the one or more ECU devices through vehicle buses. The method comprises: after first identity authentication and key negotiation are carried out between the TSP platform and the central gateway, constructing a first secure channel, and the TSP platform carrying out encrypted communication with the central gateway through the first secure channel; performing second identity authentication and key distribution between the central gateway and the domain controller, and then constructing a second secure channel, wherein the central gateway performs encrypted communication with the domain controller through the second secure channel; and after third identity authentication and key distribution are carried out between the domain controller and the ECU equipment, constructing a third secure channel, and the domain controller carrying out encrypted communication with the ECU equipment through the third secure channel.

Description

technical field [0001] The invention relates to technical fields such as in-vehicle network, security authentication and encryption, and in particular to a secure communication system and method for an in-vehicle network. Background technique [0002] With the development of automobile intelligence and networking, the traditional automobile electronic network structure mainly includes a central gateway and multiple ECU devices. The automobile bus network mainly adopts CAN bus network, LIN bus network and FlexRay bus network. Mount multiple ECU devices. However, the processing capability of ECU equipment itself is limited, the bus transmission speed is slow, the bandwidth is not enough and there are many ECU equipment units in the car. In order to solve these problems in ECU equipment, a domain controller is proposed, which has a multi-core CPU / GPU, with modularization, integration, and platform unification, can relatively centrally control multiple ECU devices involved in ...

AI Technical Summary

Problems solved by technology

However, the processing capability of ECU equipment itself is limited, the bus transmission speed is slow, the bandwidth is not enough and there are many ECU equipment units in the car. In order to solve these problems in ECU equipment, a domain controller is proposed, which has a multi-core CPU / GPU, with modularization, integration, and platform unification, can relatively centrally control multiple ECU devices involved in several domains such as automotive powertrain, vehicle safety, body electronics, smart cockpit, and smart driving, replacing traditional Distributed Automotive Electronics and Electrical Architecture

[0003] However, since the data involved in the in-vehicle network is mostly sensitive information, and the design of the domain controller, central gateway and ECU equipment does not consider security issues, for example: when the in-vehicle central gateway, domain controller and ECU equipment are When attacking through the in-vehicle network, it will directly threaten the life safety of the car user; when the in-vehicle network transmits sensitive information without encryption and authentication technology, once it is maliciously stolen and tampered with, it will affect the overall operation of the car

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