Improved SpaceTwist privacy protection method based on anchor optimization algorithm

With location-based services worldwide used,private location data appealed easily in query process which caused serious security problems.So the introduction of SpaceTwist incremental nearest neighbor query algorithm,proposes protection of privacy method combined with improved SpaceTwist location op...

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Bibliographic Details
Published inTongxin Xuebao Vol. 38; pp. 32 - 38
Main Authors Zhen-peng LIU, Xuan ZHAO, Ya-wei DONG, Bin ZHANG
Format Journal Article
LanguageChinese
Published Editorial Department of Journal on Communications 01.10.2017
Subjects
location-based services;SpaceTwist algorithm;k anonymous;anchor point
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Summary:With location-based services worldwide used,private location data appealed easily in query process which caused serious security problems.So the introduction of SpaceTwist incremental nearest neighbor query algorithm,proposes protection of privacy method combined with improved SpaceTwist location optimization algorithm.The anchor point authentication server added to distributed system structure,user generate a k anonymous area according to their privacy preference and actual environment,using optimization algorithm to generate the anchor point.Forwarding users use the incremental nearest neighbor query throught the anchor point and accurate.Experiments in road network environment with different data sets show that the privacy protection works well in the algorithm,and own high work efficiency.
ISSN:1000-436X