基于k-匿名的轨迹数据隐私发布研究综述

A Research Review on Privacy-Preserving of Trajectory Data Publishing Based on K-Anonymity

随着移动定位技术的发展,大量移动轨迹数据使信息泄露于公开的互联空间中,使攻击者可以通过计算推理挖掘轨迹信息。轨迹数据发布的隐私保护是近年来网络空间安全领域研究的热点问题。为了防止该类轨迹数据隐私的泄露,通常采用k-匿名技术实现轨迹的隐私保护。该技术在国内外研究中取得了一定的成果。本文阐述了轨迹隐私保护的相关定义及研究方法,对国内外移动轨迹数据k-匿名隐私保护研究的成果进行了总结,并介绍了国内外有关轨迹数据k-匿名隐私保护研究的相关技术。同时对国内外的技术进行了比较,详细叙述了国外与国内各自方法的优点,指出了研究中存在的不足与今后研究的大致方向。

With the development of mobile localization technology,large amounts of mobile trajectory data expose information to open cyberspace,so that hackers can dig out trajectory data by computing and reasoning.Recently,privacy-preserving of trajectory data publishing is one of the hottest topics in Internet security.In order to prevent the disclosure of trajectory data,k-anonymous privacy preserving model is widely applied,on which some research achievements have been made both at home and abroad.This paper presents some related defnitions and research methods in trajectory data privacy preserving,summarizes domestic and abroad research achievements on the k-anonymous privacy preserving of mobile trajectory data,introduces and compares related technology on the k-anonymous privacy preserving of mobile trajectory data both at home and abroad,elaborates on respective advantages of each method at home and abroad,and points out the limitation in previous studies and the direction in future studies.