摘要
随着移动无线技术和物联网的发展,随时随地获得个人或物品的位置信息成为可能,基于位置的隐私保护已成为当今社会中的重要问题。文中以提高隐私保护能力和位置服务效率为目标,对RFID追踪系统中的隐私保护问题进行研究,分析了现有的位置隐私保护方法,通过对已有算法加以改进,设计了一种高效的不依赖于可信服务器的RFID位置隐私保护算法。该算法用hash加密的方法对ID信息进行加密,利用垂直数据划分把时间和位置信息分别存储在不同的物理空间。理论分析和测试实验表明,所设计的算法在保护用户隐私的同时,执行效率更高。
With the development of mobile wireless technology and the Internet of Things, users can achieve location information of indi- viduals and goods in anywhere and anytime. Location-based privacy protection has become an important issue in today＇s society. In order to enhance the privacy protection capability and the efficiency of location-based services,it studies the privacy protection issues in RFID tracking system, analyzes the existing location privacy protection method, and designs a higher efficient location privacy protection algo- rithm by improving the existing algorithm. The improved algorithm is not dependent on reliable service. It encrypts the ID information with hash encryption method and stores time information and location information in separate physical space with vertical data partitioning method. The theoretical analysis and test results show that the algorithm has the higher efficiency while protecting user privacy.
出处
《计算机技术与发展》
2013年第1期157-160,共4页
Computer Technology and Development
基金
国家"973"重点基础研究发展计划项目(2011CB302903)
关键词
位置隐私
隐私保护
数据库安全
RFID
location-based privacy
privacy protection
database security
RFID
