A method and system for protecting location privacy of Internet of Vehicles under road network environment

Abstract

The invention discloses a method and a system for protecting the privacy of a vehicle network location in a road network environment. The method comprises: based on the number of vehicles on each road section in the Voionoi area, calculating the weight of each road section; selecting other adjacent relevant vehicle sections according to the ordering of the road section weights to add to the anonymous collection, which can be achieved by adding multiple weights value of the road section, reduce the homogeneity of the road section that constitutes the road network model, and form a road network environment that is closer to the real situation. On this basis, determine the calculation of the anonymous area area, and use the anonymous area to replace the real position of the target vehicle , making it difficult for attackers to obtain the exact location of the vehicle user, effectively avoiding feature attacks and speculative attacks, reducing the risk of privacy leaks in the Internet of Vehicles location, and adding adjacent related vehicle sections with similar weights or the same weight to the anonymous set in the process , which reduces the search range of roads and vehicles, and reduces the time overhead of anonymous calculations.

Description

technical field [0001] The invention relates to the field of location privacy protection, in particular to a method and system for protecting location privacy of the Internet of Vehicles in a road network environment. Background technique [0002] Today, the Internet of Things is developing rapidly, and communication technology is rapidly improving. The arrival of 5G cellular networks will accelerate the development of the Internet of Things. The computing power of mobile devices is increasing rapidly. These mobile devices can also be piggybacked on many devices. Location Based Service (Location Based Service, LBS) is an essential part of people in modern society. For example, check nearby hotels and schools, how to find the nearest bus stop, etc. The Internet of Vehicles (IoV) is an emerging product, developed from the Internet of Things, that is, vehicle ad hoc networks (VANETs). Usually the physical layer / MAC layer chooses the 802.11p protocol, and the networking tech...

AI Technical Summary

Problems solved by technology

[0006] Based on this, it is necessary to provide a location privacy protection method and system for the Internet of Vehicles in the road network environment to solve the contradiction between the variability of the anonymity set, the strength of location privacy protection, and the quality of service in the existing location privacy protection methods for the Internet of Vehicles. The problem of balance can effectively reduce the risk of privacy leakage and reduce the cost of anonymous computing time

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