基于公开密钥算法的移动位置隐私保护  

Protecting mobile location privacy based on public-key cryptographic algorithm

作　　者：陈渝文[1] 李晓宇[1] 

机构地区：[1]郑州大学信息工程学院,河南郑州450001

出　　处：《计算机工程与设计》2016年第2期331-337,383,共8页Computer Engineering and Design

基　　金：国家自然科学基金项目(61073023);河南省教育厅自然科学基金项目(14A520012)

摘　　要：为保证位置信息查询服务的安全性和保密性,提出基于公开密钥算法的移动位置隐私保护方法。引入混淆服务器,用地理位置信息服务器的公有密钥加密用户发出的查询,经过混淆服务器转发给地理位置信息服务器。由于查询经过加密,所以混淆服务器不知道用户查询的内容和当前的位置信息,地理位置信息服务器知道有用户查询,但不知道用户的实体信息。实验结果表明,该方法能够以很小代价更好地保护用户的位置隐私。To ensure the security and confidentiality of location based services,a mobile location privacy protection method based on public-key cryptography was presented.A confusion server was introduced.Queries issued by the users were encrypted with the public key of location information server,which were forwarded by the confusion server to location information server.The method can protect user＇s location privacy,because the query is encrypted,the confusion server does not know the contents of the user＇s query and the current location information.Location information server only knows the query,but does not know user＇s entity information.The experimental results show that the method can protect the user＇s location privacy better with marginal cost.

关 键 词：移动位置 位置隐私 公开密钥算法 基于位置的信息服务 混淆服务器 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]