Internet-of-Vehicles trust management method based on block chain

Abstract

The invention discloses an Internet-of-Vehicles trust management method based on a block chain, and the method comprises the steps: firstly calculating the credibility of received vehicle informationrelated to an event, judging the occurrence probability of each event through the credibility of the vehicle information, generating a rating for transmitted information, and uploading the rating of the vehicle information to nearby RSUs; enabling the RSU to call a reputation value updating method in an intelligent contract deployed on a block chain to calculate a vehicle reputation value, whereinthe calculated vehicle reputation value and the collected rating information are all packaged into a block; through a consensus mechanism combining PoW and PoS, ensuring RSUs with larger change of vehicle reputation values to serve as miner nodes to publish blocks; and enabling other RSUs to re-use the reputation value updating method of the smart contract to re-calculate the rating in the release block, and if the calculation results of most nodes are consistent with the data in the release block, releasing the release block to the block chain to realize Internet-of-Vehicles trust management. According to the invention, the data security is ensured, and the accuracy of event judgment in the Internet of Vehicles is improved.

Description

technical field [0001] The invention belongs to the technical field of the Internet of Things, and in particular relates to a blockchain-based trust management method for the Internet of Vehicles. Background technique [0002] The Internet of Vehicles mainly refers to the on-board sensors on the vehicle to transmit the dynamic information of the vehicle through wireless communication, and use the effective information in the calculation to provide different functional services for the vehicle, such as providing road information, weather information, traffic accident information, etc. With the steady increase in the quantity and quality of cars and the rapid development of computers, the process of vehicle automation has been greatly advanced. Due to the distributed network architecture of the Internet of Vehicles, the high mobility and universality of vehicles, the communication information of vehicles is more vulnerable to malicious attacks and errors, and the network secur...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a block chain-based trust management method for Internet of Vehicles, which solves the problem that edge computing of Internet of Vehicles in the prior art is vulnerable to malicious attacks and Internet of Vehicles cannot satisfy The large amount of computing resources required by the blockchain consensus mechanism and the traditional password management system are not suitable for the Internet of Vehicles

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