A method and system for anonymous authentication of messages between vehicles in the Internet of Vehicles environment

Abstract

The present invention relates to a method and system for anonymous authentication of messages between vehicles under the Internet of Vehicles environment. In this method, each vehicle has a unique identity. During communication, it must pass TA's authentication in advance to obtain a short-term pseudonym certificate for use in Prove your legal identity. The vehicle negotiates the communication authentication key with each neighboring vehicle through the pseudonym certificate, and then based on this communication key, the signature and verification can be realized through simple and fast HMAC. Compared with the previous message authentication method, the present invention reduces the time required for each message authentication on the whole, and improves the environment for vehicle information exchange.

Description

technical field [0001] The invention relates to the field of message authentication research, in particular to a method and system for anonymous authentication of messages between vehicles under the Internet of Vehicles environment. Background technique [0002] The frequency of message sending in the Internet of Vehicles is relatively high. To ensure its reliability and real-time performance, there are relatively high requirements for the time of message authentication. In the vehicle privacy protection authentication protocol, the traditional pseudonym certificate-based protocol has problems such as long authentication time and large storage space, while the ID-based authentication protocol uses complex mathematical calculations for authentication. When the vehicle density is relatively high, it is not suitable for OBU with small computing power, which is different from the previous certificate-based message verification and takes a long time. [0003] Aiming at the probl...

AI Technical Summary

Problems solved by technology

In the vehicle privacy protection authentication protocol, the traditional pseudonym certificate-based protocol has problems such as long authentication time and large storage space, while the ID-based authentication protocol uses complex mathematical calculations for authentication

When the vehicle density is relatively high, it is not suitable for OBU with small computing power, which is different from the previous certificate-based message verification and takes a long time

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