Internet of Vehicles distributed trust system based on HashGraph and trust value calculation method

Abstract

The invention provides an Internet of Vehicles distributed trust system based on HashGraph and a trust value calculation method, and the system comprises an OBU layer which is used for achieving the sensing, collection, calculation and communication functions of a vehicle node for information; a RSU layer which is a network layer formed by the drive test units, serves as a fixed communication node, provides service for wireless access of the vehicle nodes, and forwards the road condition information; a background trusted center (TC) which is used for distributing a secret key to the nodes in the access network and completing registration, revocation or authentication of node identities; and HashGraph block chain nodes, wherein the HashGraph block chain nodes are arranged on Internet of Vehicles nodes, and a plurality of HashGraph block chain nodes form the HashGraph block chain network. The invention discloses the Internet of Vehicles distributed trust system based on HashGraph and thetrust value calculation method. A block chain 3.0 technology-HashGraph is applied to research of the Internet of Vehicles trust mechanism, the problem of centralized single-point failure of a traditional Internet of Vehicles trust mechanism is solved, 103-104 transactions can be processed in parallel by the HashGraph, and the real-time requirement of the Internet of Vehicles is met.

Description

technical field [0001] The invention relates to the technical field of security application of the Internet of Vehicles, in particular to a HashGraph-based distributed trust system for the Internet of Vehicles and a trust value calculation method. Background technique [0002] The Internet of Vehicles takes mobile vehicles as information perception objects, and realizes intelligent traffic management and decision-making through the real-time interconnection of people, vehicles, and roads. The realization of the Internet of Vehicles relies on various sensing technologies, wireless communication technologies, and Internet technologies, etc., and has the characteristics of autonomous communication network topology and frequent changes, so that Internet of Vehicles nodes face more complex network attacks than traditional network nodes. Traditional authentication and authorization mechanisms cannot effectively solve such problems. For example, the rapid movement of vehicle nodes...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the above problems, the present invention provides a HashGraph-based distributed trust system and trust value calculation method for the Internet of Vehicles, and uses blockchain 3.0 technology-HashGraph for the research on the trust mechanism of the Internet of Vehicles to solve the problem of centralized trust mechanism of the traditional Internet of Vehicles. Point failure problem, and HashGraph can process 10 in parallel 3 ~10 4 transactions to meet the real-time requirements of the Internet of Vehicles

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