The Internet of Vehicles (IoV) is an important part of intelligent traffic, and the problem of information safety is an essential task that has to be solved urgently. In this study, the main focus is on the authentication mechanism of communication nodes in the IoV. Based on elliptic curve cryptography, an authentication method was designed; the processes of system establishment, pseudonym generation and message authentication were introduced; and the safety of the system was analysed. The results indicate that the proposed method has passed the correctness verification and has significant advantages compared to SPECS and b-SPECS in terms of time cost and authentication delay. The experimental results verify the reliability of the method, which makes some contributions to the authentication of communication nodes in the IoV and is beneficial to the further improvement of information security of the IoV.
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