v2x communication rapid identity authentication system and method

Abstract

A V2X communication rapid identity authentication system and method, specifically comprising: an LTCA module is used to generate an identity mark according to vehicle information and store it in a V2X terminal corresponding to the vehicle; a ROOT CA module is used to verify the identity of the vehicle through the LTCA module according to a verification request Verify and output the verification result; the IBE server is used to obtain the identity of the vehicle within the predetermined range, generate a verification request based on the identity and send it to the ROOT CA module; and generate a communication key through the elliptic curve algorithm based on the verification result and the identity , output the communication key to the V2X terminal corresponding to the identity; the V2X terminal is used to sign the message to be communicated with the communication key, and send the signed message to the V2X terminal on the vehicle to be communicated; and verify According to the received message to be communicated, a communication connection is established with the V2X terminal sending the message to be communicated according to the verification result.

Description

technical field [0001] The invention relates to the field of vehicle communication, in particular to a V2X communication fast identity authentication system and method. Background technique [0002] V2X (Vehicle to Everything) technology, which is the communication between the vehicle and the outside world, is a key technology of intelligent networked vehicles. With the advancement of LTE-V and 5G communication standards and the clarification of V2X application scenarios, the commercialization of V2X is getting closer. V2X includes V2V, V2R, V2I and other methods. Compared with the level of information security protection and reliability of roadside facilities and network equipment, the security of communication between vehicles is often the focus of most concern. In the V2X communication scenario, security mainly includes confidentiality, integrity, authentication and non-repudiation. Authenticity and integrity protection are particularly important in V2X communication, e...

AI Technical Summary

Problems solved by technology

[0005] CA cascading is used in the above schemes, and the certificate management process is complicated, which is not suitable for the low-latency requirements of vehicle-to-vehicle communication; especially, the PCA center needs to continuously and rapidly generate a large number of certificates for short-term identity authentication and communication of all parties. Security protection, which requires the CA center to have a high processing capacity, which is prone to performance bottlenecks; at the same time, PC issuance and other links will cause delays, which do not meet the high real-time requirements of V2X communication

Therefore, this system is not suitable for the requirements of V2X application scenarios

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