摘要
针对K匿名技术在轨迹隐私保护中存在搜索k-1个匿名用户耗时过长、甚至搜索不到和易于被连续查询攻击所侵袭的现状,提出了一种改进的方法,方法利用时间截点对搜索时间进行约束,生成假名对用户发送查询请求时的真名进行保护,有效解决了上述问题。实验结果表明该方法的系统运行时间较短且隐私保护程度较高。
Aiming at the existence of K-anonymity technology in the trajectory privacy protection,the search for k-1 anonymous users is too long,even unsearchable and easy to be attacked by continuous query attacks.An improved method is proposed,which uses time interception pairs.The search time is constrained,and the pseudonym is generated to protect the real name when the user sends the query request.The experimental results show that the system has a shorter running time and a higher degree of privacy protection.
作者
张家磊
钟伯成
房保纲
丁佳蓉
贾媛媛
ZHANG Jialei;ZHONG Bocheng;FANG Baogang;DING Jiarong;JIA Yuanyuan(School of Electronic and Electrical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)
出处
《智能计算机与应用》
2019年第5期250-252,256,共4页
Intelligent Computer and Applications
关键词
K匿名技术
轨迹隐私
时间截点
假名
K-anonymity technology
trajectory privacy
time cut-off point
kana
