CT-ISG: SPEAR: Space Encryption based Query Processing for Privacy-Aware Location-based Services

CT-ISG：SPEAR：基于空间加密的隐私感知位置服务的查询处理

• 批准号: 0831502
• 负责人: Wei-Shinn Ku
• 金额: $ 20万
• 依托单位: Auburn University
• 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=0831502&HistoricalAwards=false
• 关键词: CT; ISG; SPEAR; Space; Encryption

As a result of recent wireless technology advances, mobile devices with significant computational abilities, gigabytes of storage capacities, and wireless communication capabilities have increasingly become popular. In addition, positioning techniques like GPS are incorporated into an increasing number of mobile devices. Emerging mobile applications allow users to issue location-dependent queries in a ubiquitous manner. It is believed that location privacy preservation represents important security and privacy problems in mobile computing environments. For instance, when a mobile user launches a series of queries to a location-based service (LBS) provider, that user?s trajectory can be tracked through the service logs. Although it is true that not all location-dependent queries are privacy-sensitive, it is of growing importance to offer users the choice of protecting their location privacy when it is necessary. The technical objectives of the project are to (1) develop space encryption and space decryption mechanisms, (2) design privacy-protected query processing algorithms to answer spatial queries based on encrypted search space, and (3) develop a sophisticated SPEAR system architecture for supporting real-world applications. This project also promotes education by exposing students to mathematical and technological underpinnings in the fields of security and data management. The success of this project will lead to another wave of increased usage for LBS and benefit the economy of our country. Research results will be disseminated through publications at conferences, journals, and the website at http://www.eng.auburn.edu/~weishinn/SPEAR.html

由于最近的无线技术进步，具有显著的计算能力、千兆字节的存储容量和无线通信能力的移动的设备已经越来越流行。此外，像GPS这样的定位技术被结合到越来越多的移动的设备中。新兴的移动的应用允许用户以无处不在的方式发出位置相关的查询。人们认为，位置隐私保护代表了移动的计算环境中重要的安全和隐私问题。例如，当移动的用户向基于位置的服务（LBS）提供商发起一系列查询时，该用户？的轨迹可以通过服务日志进行跟踪。虽然并非所有位置相关查询都是隐私敏感的，但在必要时为用户提供保护其位置隐私的选择越来越重要。该项目的技术目标是（1）开发空间加密和空间解密机制，（2）设计隐私保护的查询处理算法，以基于加密的搜索空间回答空间查询，以及（3）开发一个复杂的SPATCH系统架构，以支持现实世界的应用。该项目还通过让学生接触安全和数据管理领域的数学和技术基础来促进教育。这个项目的成功将导致另一波增加使用LBS和有利于我国的经济。研究成果将通过会议出版物、期刊和网站http://www.eng.auburn.edu/~weishinn/SPEAR.html传播