轨迹发布中基于时空关联性的假轨迹隐私保护方案

发布时间：2018-03-29 05:33

本文选题：轨迹发布　切入点：隐私保护　出处：《通信学报》2016年12期

【摘要】：从轨迹的整体方向、轨迹中相邻位置的时间可达及移动距离对单条轨迹中相邻位置间的时空关联性和轨迹间的相似性进行分析,提出了一种基于时空关联性的假轨迹隐私保护方案。安全性分析表明所提方案能有效混淆假轨迹与真实轨迹,避免攻击者识别出假轨迹。大量实验表明,所提方案在仅需较少计算时间的同时,能确保生成的假轨迹与真实轨迹具有相似性,从而有效保护轨迹发布中用户的轨迹隐私。
[Abstract]:From the whole direction of the track, the time reachability of the adjacent position in the trajectory and the moving distance, the spatio-temporal correlation and the similarity between the adjacent positions in a single track are analyzed. A privacy protection scheme based on temporal and spatial correlation for false trajectory is proposed. The security analysis shows that the proposed scheme can effectively confuse false trajectory with real trajectory and avoid attackers from identifying false trajectory. A large number of experiments show that the proposed scheme can effectively confuse false trajectory with real trajectory. The proposed scheme can ensure the similarity between the generated false trajectory and the real trajectory, which can effectively protect the user's trajectory privacy in trajectory publishing.
【作者单位】：西安电子科技大学网络与信息安全学院;
【基金】：国家自然科学基金资助项目(No.61372075,No.U1405255,No.61202389,No.61472310)~~
【分类号】：TP309

【相似文献】