空间众包中的位置隐私保护技术综述

Survey on location privacy preservation technology in spatial crowdsourcing

随着移动设备和无线网络的迅速发展,传感器能够更加精确地获取用户的位置、移动速度和方向等信息,空间众包中用户的位置隐私安全问题日益凸显,基于空间众包的位置隐私保护技术成为互联网隐私领域的研究热点。首先系统介绍了空间众包的基本概念、工作流程以及已有空间众包平台;归纳了空间众包中基于差分隐私、空间匿名以及加密技术的三种主流的隐私保护模型,对比分析了三种主流的隐私保护方法。最后总结并展望了未来的研究方向。

Due to the rapid development of the mobile devices and the wireless network, sensors could accurately obtain the users’ information such as position, moving speed and the direction, location privacy is becoming considerably important. The location privacy protection technology based on spatial crowdsourcing has become a hot research topic in the field of Internet privacy. This paper discussed the basic concept of spatial crowdsourcing, procedure and some application platforms. It analyzed and summarized of the state-of-the-art privacy preservation models based on differential privacy, also included spatial cloaking and encryption technology in spatial crowdsourcing. At last, it presented the future research work.