Intelligent traffic data safety sharing method based on alliance block chain

Abstract

An intelligent traffic data safety sharing method based on an alliance block chain comprises a trust institution, a vehicle-mounted unit, a roadside unit and a service department, and the service department is composed of an vehicle maintenance service provider, a traffic police and an insurance company. The vehicle-mounted unit encrypts the traffic data to generate a ciphertext and sends the ciphertext to the roadside unit; the roadside unit main node packages the ciphertext to generate a block, and then connects the block to a block chain; and the service department obtains the correspondingciphertext from the blockchain according to the attribute set and the keyword, and provides customized service for the vehicle-mounted unit by utilizing the decrypted information. According to the method, a data centralized management mode of traditional intelligent transportation is overturned, single-point crash and data monopoly are prevented, collusion attacks are effectively avoided, the integrity and confidentiality of data are guaranteed, safe sharing of the data is achieved, and the method has more advantages in the aspects of communication expenditure and calculation expenditure.

Description

technical field [0001] The invention belongs to data security sharing of intelligent transportation, and relates to block chain technology in the field of information security, and a method for property agent re-encryption and data security verification. Background technique [0002] Wireless communication technology, sensors, computer technology and other technologies are combined to build a safe and efficient intelligent transportation system. In recent years, as a product of the development of the Internet of Things, the Internet of Vehicles has become an important part of the intelligent transportation system, and has attracted great attention from scholars and researchers. The vehicle-mounted unit in the Internet of Vehicles has detection and communication capabilities, and the vehicle-mounted unit provides real-time traffic data to other vehicle-mounted units or management departments by sending and receiving information. The on-board unit in the Internet of Vehicles ...

AI Technical Summary

Problems solved by technology

[0005] The above schemes use blockchain technology to provide a traffic data sharing model for the Internet of Vehicles, but do not carry out fine-grained management of the shared traffic data, do not set data access rights, and still have the problem of leaking user privacy during the data sharing process

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