Vehicle pseudonym replacement method, device and computer-readable storage medium

Abstract

The invention provides a vehicle pseudonym replacement method, device and computer-readable storage medium. The method includes that when the vehicle enters the vehicle-mounted self-organizing network, a trusted third party registers the vehicle to obtain a pseudonym and a certificate; the trusted third party registers the base station and the roadside unit to obtain a public key and a private key, and the base station calculates an effective The public key of the base station; when the vehicle enters the signal coverage of the roadside unit, the vehicle and the roadside unit confirm each other's legitimacy; the vehicle applies to the base station through the roadside unit, and obtains a valid pseudonym, certificate and Base station key; if the vehicle is in a driving state, the vehicle will periodically broadcast basic security messages, and pseudonyms will be replaced according to the driving state of nearby vehicles. In this way, without the participation of RSU, the legal pseudonym certificate can be independently calculated through cooperation with the surrounding vehicles; the vehicle can independently judge the conditions of pseudonym change, and enhance the security of the subsequent pseudonym replacement protocol.

Description

technical field [0001] The present invention generally relates to the field of intelligent transportation, and more specifically, relates to a vehicle pseudonym replacement method, device and computer-readable storage medium. Background technique [0002] Intelligent Transportation System (ITS) is considered an important part of the next generation of urban traffic development and management, which integrates a variety of advanced technologies (such as sensor technology, intelligent control technology) to provide convenience for drivers and pedestrians. As an important part of ITS, Vehicle Ad-hoc Networks (VANETs), which can maintain a stable network communication environment and provide diversified services, have attracted more and more attention. According to the characteristics of current urban traffic (vehicles move quickly, traffic distribution is uneven), VANETs are formulated to meet the standards of future intelligent transportation development, and solve the followi...

AI Technical Summary

Problems solved by technology

[0005] However, the pseudonym replacement strategy based on Mix-zone can only change the pseudonym in a fixed area. In many scenarios, the vehicle cannot change the pseudonym in time because it does not reach the communication range of the RSU.

In the Mix-context-based strategy, vehicles initiated by pseudonym replacement usually consume a lot of communication and computing overhead, and it is difficult to ensure that there are enough vehicles to participate in the cooperation of pseudonym replacement

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