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Location service algorithm based on re-encryption and pseudonym exchange

A location service and re-encryption technology, applied in the field of in-vehicle network, can solve the problem of exposing the privacy of vehicle location, and achieve the effect of reducing the probability of being tracked, protecting location privacy, and defending against pseudonymous connection attacks.

Active Publication Date: 2021-05-14
HUZHOU TEACHERS COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the vehicle uses the same pseudonym for a long time, the stalker can correlate the vehicle's driving trajectory based on the pseudonym information in the beacon message, thus exposing the vehicle's location privacy

Method used

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  • Location service algorithm based on re-encryption and pseudonym exchange
  • Location service algorithm based on re-encryption and pseudonym exchange
  • Location service algorithm based on re-encryption and pseudonym exchange

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Embodiment Construction

[0084] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0085] The present invention provides a technical solution: a location service algorithm based on re-encryption and pseudonym exchange, characterized in that it includes the following steps:

[0086] S1: Establish a system model: the whole system is mainly composed of law enforcement agency LEA, traffic information center TIC, RSUs and vehicles, such as figure 2 shown;

[0087] The Law Enforcement Agency LEA is used to

[0088] After receiving the registration f...

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Abstract

The invention discloses a location-based service algorithm based on re-encryption and pseudonym exchange in the technical field of vehicle-mounted networks. The location-based service algorithm comprises the following steps: S1, establishing a system model; S2, establishing an identity-based encryption and signature function; S3, an initial stage; S4, track sharing; S5, transmitting the message; and S6, based on a pseudonym exchange mechanism with similar vehicle behaviors, the user encrypting the trajectory data based on the identity information and then transmitting the trajectory data to a traffic information center, wherein the traffic information center encrypts the trajectory data and transmits the trajectory data of the user to corresponding RSUs, and the RSUs provide location services for the user. Besides, the algorithm adopts a pseudonym exchange strategy based on similar behaviors to defend pseudonym connection attacks and protect location privacy of the user, and the user searches vehicles with similar behaviors and exchanges pseudonyms with the vehicles in the communication process, so that location information of the user is generalized, and the probability of being tracked is reduced.

Description

technical field [0001] The invention relates to the field of vehicle network technology, in particular to a location service algorithm based on re-encryption and pseudonym exchange. Background technique [0002] Vehicle Ad Hoc Networks (VANETs) is a new mobile ad hoc network (Mobile Ad Hoc Network, MANET) running on the road, which plays an important role in improving vehicle driving safety and smoothing traffic flow. By installing the vehicle-mounted unit, the vehicle can communicate with neighboring devices (vehicles, side devices). Through Vehicle-to-Vehicle (V2V) and Vehicle-to-Road Side Unit (V2R) communication, the vehicle's awareness of the surrounding environment can be improved. [0003] As the most promising application, location-based service (Location-based Service, LBS) delivers valuable information to vehicles, including point-of-interest query, advertisement push and entertainment games. According to the trajectory of the vehicle, the efficiency of the locat...

Claims

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Application Information

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IPC IPC(8): H04W4/029H04W4/40H04W12/33H04W12/069
CPCH04W4/029H04W4/40
Inventor 徐会彬黄旭曾孟佳
Owner HUZHOU TEACHERS COLLEGE
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