摘要
许多位置隐私保护方法基于可信匿名服务器,但实际生活中匿名服务器并不一定可信而且容易成为攻击者集中攻击的目标。该方法将地图区域划分为网格,用户根据周期更新的网格信息计算偏移网格区域并发送给匿名服务器,匿名服务器根据用户查询请求选择k-1个网格坐标构成匿名集合。方法在保护用户隐私信息的同时,具有较低的时间开销,匿名位置集合的位置分布更分散。在模拟数据集上进行实验,实验结果验证该方法的有效性。
Many location privacy protection methods are based on trusted anonymous servers,but in real life,anonymous servers are not indeed trusted and are easily targeted by attackers.The method divides the map area into a grid,and the user calculates the offset reseau area according to the periodically updated grid information and sends it to the anonymous server.The anonymous server selects k-1 reseau coordinates to form an anonymous set according to the user query request.The method has lower time overhead while protecting the user's private information,and the location distribution of the anonymous location set is more dispersed.Experiments are carried out on the simulated data set, and the experimental results verify the effectiveness of the method.
作者
徐俊仪
XU Jun-yi(School of Computers,Guangdong University of Technology,Guangzhou 510006)
出处
《现代计算机》
2019年第15期32-36,46,共6页
Modern Computer
基金
广东省科技计划项目(No.2017B090906003)
广州市科技计划项目(No.201802010043、201807010058)
作者简介
徐俊仪(1993-),男,广东梅州人,硕士,研究方向为网络空间安全技术、大数据技术、位置隐私保护技术.
