CT-ISG: Enabling Location Privacy; Moving beyond k-anonymity, cloaking and anonymizers

CT-ISG：启用位置隐私；

• 批准号: 0831505
• 负责人: Cyrus Shahabi
• 金额: $ 38.67万
• 依托单位: University of Southern California
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0831505&HistoricalAwards=false
• 关键词: CT; ISG; Enabling; Location; Privacy

Location-based services are becoming an important part of our everyday lives. According to the Pew Internet & American Life Project survey, 47% of current cell-phone users prefer to have mapping features on their phones. Similar trends can be shown for other portable devices such as car navigation systems, PDA's and computer laptops. However, recent concerns over how such services can jeopardize a user's private information resulted in the newly coined term "location privacy." Several breaches of subscriber's privacy by stalking their locations have been reported. This project is going beyond the conventional approaches proposed for location privacy by devising novel frameworks to eliminate the need for a trusted intermediary (acting as an anonymizer) in location-based services and that satisfy significantly more stringent privacy guarantees as compared to the anonymity-based approaches. The first approach is inspired by the work in the area of encryption and the second approach builds upon the framework of private information retrieval. Both of these research fields have been around for a long time enabling privacy protection but not yet fully exploited for location privacy. The broader impact of this study is to enable many users with privacy concerns to utilize customized location services in their mobile devices without compromising their location privacy. This in turn would increase the customer base for many industries and government agencies in the areas of geospatial information systems, online maps, car navigation systems, Location Based Services, and military and intelligence operations. Results will be disseminated through papers published in relevant conferences and journals; open-source code will be disseminated through the web: http://infolab.usc.edu/projects/LocationPrivacy/.

基于位置的服务已成为我们日常生活的重要组成部分。根据Pew Internet＆American Life项目调查，有47％的当前手机用户更喜欢在手机上具有映射功能。对于其他便携式设备，例如汽车导航系统，PDA和计算机笔记本电脑，也可以显示类似的趋势。但是，最近对此类服务如何危害用户的私人信息的担忧导致了新创造的术语“位置隐私”。据报道，已经有几种违反了订户隐私的侵犯。该项目超越了为位置隐私提出的常规方法，即通过设计新颖的框架来消除基于位置的服务中对信任中介机构（充当匿名者）的需求，并且与基于匿名的方法相比，可以很好地满足更严格的隐私保证。第一种方法的灵感来自加密领域的工作，第二种方法基于私人信息检索的框架。这两个研究领域已经存在了很长时间以实现隐私保护，但尚未完全利用用于位置隐私。这项研究的更广泛的影响是使许多具有隐私问题的用户能够在其移动设备中使用自定义的位置服务，而不会损害其位置隐私。反过来，这将增加地理空间信息系统，在线地图，汽车导航系统，基于位置的服务以及军事和情报运营领域的许多行业和政府机构的客户群。 结果将通过在相关会议和期刊上发表的论文传播；开源代码将通过网络传播：http：//infolab.usc.edu/projects/locationprivacy/。