Traffic monitoring method and system for privacy protection and error data packet filtering

Abstract

The invention discloses a traffic protection method and system capable of privacy protection and error packet filtering, and belongs to the technical field of anonymous authentication and privacy protection. The method comprises the steps that a driver performs the vehicle speed matching with a surrounding driver at first through a wireless signal, and transmits a driving data packet which mainlycomprises the encrypted vehicle speed and position to a roadside node; the roadside node performs the anonymous authentication of the identity of the driver, performs the verification and filtering ofthe driving data packet to obtain the local traffic congestion condition, transmits the local traffic congestion condition to a service provider, and responds to a traffic congestion information querying request of the driver with the cloud service provider. The beneficial effects of the invention are that the method and system protect the privacy of the driver: identity, position, vehicle speedand track, and filter a wrong driving data packet which is sent by a malicious driver; the cloud service provider and the driver timely obtain the traffic congestion information; compared with a conventional traffic monitoring method, the method and system reduces the calculation expenditure and communication expenditure.

Description

technical field [0001] The invention relates to a traffic monitoring method and system for privacy protection and error data packet filtering, and belongs to the technical field of anonymous authentication and privacy protection. Background technique [0002] Drivers use real-name methods to submit driving data based on vehicle speed and location. Although it can directly provide traffic congestion information for cloud service providers, it will expose the driver's privacy, such as location, trajectory, and home address. Therefore, some privacy-preserving traffic monitoring methods have emerged in recent years. The privacy-protected traffic monitoring method includes three participants: the driver (Driver), the cloud service provider (Service Provider) and the certificate issuing center (Certificate Authority); wherein, the driver reports his driving data to the cloud service provider, and the cloud service provider The provider obtains the road congestion status based on ...

AI Technical Summary

Problems solved by technology

[0004] However, none of the existing privacy-preserving traffic monitoring schemes consider the possibility of drivers launching error packet attacks

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