A location query service information protection method and system

A service information and query sequence technology, applied in the field of location query service privacy information protection, can solve problems such as loss, algorithm complex query accuracy, etc., and achieve the effect of ensuring attribute security

Active Publication Date: 2017-10-10
WENZHOU UNIV OUJIANG COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a location query service information protection method and system. The framework protects user privacy and security without changing the LBS algorithm on the server side and does not affect the accuracy of LBS queries, thereby solving the problem that existing location query service information protection methods require additional hardware, complex algorithms, or query accuracy loss of technical issues

Method used

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  • A location query service information protection method and system
  • A location query service information protection method and system
  • A location query service information protection method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0161] Embodiment 1 A method for protecting location query service information

[0162] Specifically include the following steps:

[0163] (1) Obtain the LBS query sequence submitted by the user within a period of time;

[0164] The user LBS query sequence can be expressed as: Q 0 =0 ,U 0 >, where query sequence for user location, User attribute query sequence.

[0165] The user LBS query sequence, the user query location sequence and the user LBS query sequence attribute points can be further expressed as: and in, represents the i-th LBS query, Indicates the query position of the i-th LBS query, Indicates the i-th query attribute, ie q i =i , u i >.

[0166] (2) According to the user LBS query sequence obtained in step (1) and its user query location sequence and the user query property sequence Construct a pseudo-query sequence set

[0167] The dummy query sequence set Satisfy the following three conditions at the same time:

[0168] A. The set...

Embodiment 2

[0246] The location query service information protection system provided by the present invention includes:

[0247] The user interaction module is used to obtain the LBS query sequence submitted by the user within a period of time, and return the query result of the user LBS query sequence to the user; the LBS query sequence includes a user location query sequence and a user attribute query sequence;

[0248] A pseudo query sequence set construction module, configured to construct a query sequence set according to the user LBS query sequence;

[0249] The pseudo-query sequence set constructed by the pseudo-query sequence set construction module satisfies the following conditions simultaneously:

[0250] A. The set of pseudo-query sequences includes at least one subset Its query position sequence set Can effectively ensure that users query the location sequence The location security of ; specifically:

[0251] The set of query position sequences The following three co...

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Abstract

The invention discloses a location query service information protection method and system. The method includes: (1) obtaining the LBS query sequence submitted by the user within a period of time; (2) constructing a pseudo-query sequence set according to the user LBS query sequence; (3) generating the user LBS query sequence and step (2) All queries in the pseudo query sequence set are submitted to the location server, and the query result set is obtained; (4) the query results in the query result set are screened to obtain the query result of the user LBS query sequence, and returned to the user. The system includes: a user interaction module, a pseudo-query sequence set construction module, and a result screening module. The present invention can protect the user's privacy and security without changing the LBS algorithm at the server end and without affecting the query accuracy of the LBS.

Description

technical field [0001] The invention belongs to the technical field of network service privacy protection, and more particularly relates to a method and system for protecting privacy information of a location query service. Background technique [0002] With the development of wireless communication technology and mobile positioning technology, more and more mobile devices have GPS precise positioning function, which makes location service (LBS) more and more popular, and it has become one of the most promising services for mobile users. LBS refers to various information services provided for mobile users based on the geographical location information provided by the positioning function of mobile devices. Its typical applications mainly include: map applications (such as Google Maps) and queries based on points of interest (such as querying nearby Hospital). At present, LBS has achieved great success in the social and commercial fields. According to reports, the total reve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/08
CPCH04L63/0407H04L67/52
Inventor 吴宗大江芳
Owner WENZHOU UNIV OUJIANG COLLEGE
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