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Method for protecting position privacy by mobile terminals

A mobile terminal and privacy protection technology, applied in the direction of location information-based services, security devices, electrical components, etc., to achieve the effects of ensuring functionality, enhancing privacy, and protecting location privacy

Inactive Publication Date: 2013-09-04
NANJING UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0014] The disadvantage of this type of method is that the method using data mining has a high probability of distinguishing real queries from fake queries

Method used

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  • Method for protecting position privacy by mobile terminals
  • Method for protecting position privacy by mobile terminals
  • Method for protecting position privacy by mobile terminals

Examples

Experimental program
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Embodiment Construction

[0040] To realize the present invention, the following problems must be solved, 1) mutual discovery and cooperation between mobile users who are close to each other; 2) prediction of mobile user's action trajectory; 3) generation and confusion of false paths.

[0041] Regarding problem 1, the present invention requires a server in the mobile network to realize mutual discovery and cooperation between mobile users who are close to each other. We do not assume that the server is trusted, so we design a set of symmetric key exchange mechanisms based on Wi-Fi Direct for identity authentication to ensure communication security and privacy, such as figure 1 shown. We first define a public location generalization method, calling this method, the mobile terminal holder can generate a rough location based on its precise location. The rough location of the mobile terminal holder is collected, stored, updated and managed by a server in the mobile network. Terminal holders with the same...

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Abstract

The invention discloses a method for protecting position privacy by mobile terminals. According to the method, the mobile terminals are used for forecasting moving tracks of terminal owners in a period and refining and amending the moving tracks according to a local map. For the terminal owners which are close to each other, each mobile terminal takes a position where the owner of the mobile terminal exists as a start point, and positions forecast by the other owners are taken as terminal points. A map navigation service is utilized to generate a fake route, the fake route is mixed with a true route, and the fake route and the true route are combined to generate complete two branch route pictures. Each terminal owner performs fake name replacement at end points of the complete two branch pictures, the owners can be mutually indistinguishable, and therefore privacy protection is achieved. According to the method for protecting the position privacy by the terminal mobile, the position privacy of the mobile users is protected, meanwhile, reduction of precision in issuing position information is not needed, and therefore the functionality for accessing the LBS service by mobile users based on the position information is ensured.

Description

technical field [0001] The invention relates to a new mobile terminal location privacy protection technology, in particular to a method for protecting location privacy by cooperating between a mobile terminal and holders who are close to each other. Background technique [0002] With the increasing maturity of positioning technology, location-based applications (LBS) are becoming more and more popular. This type of application is based on the location of mobile terminals (such as smart phones and PDAs), and releases relevant information to mobile users (ie, mobile terminal holders) through wireless IP services. In such applications, the location information of mobile users will be exposed to service providers, which may lead to hidden dangers of privacy leakage. [0003] Using access control technology, mobile users can choose whether to report location information according to the content of LBS services, the identity of service providers and other information. The disadv...

Claims

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Application Information

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IPC IPC(8): H04W4/02H04W12/02H04L29/06
Inventor 吕建董恺陶先平
Owner NANJING UNIV
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