LocPriv:一种基于空间区域匿名的位置隐私保护方案

Loc Priv: a Scheme on Location Privacy Protection Based on Spatial Region Anonymity

近年来,随着定位技术和无线移动领域相关技术的飞速发展,基于位置的服务得到广泛应用.但是,在使用基于位置的服务时,可能使位置信息暴露,甚至导致个人隐私的泄露.提出一种基于空间区域匿名的位置隐私保护方案—Loc Priv,方案采用中心服务器模型,使用假名匿名技术和假位置匿名技术实现位置隐私保护,对方案的匿名性和性能进行分析,并通过实验进行验证.Loc Priv具有较高的匿名性,能够保护用户的位置隐私,同时降低了整个系统的通信开销和响应时间,在一定程度上避免了区域中心遭受攻击.

With the rapid development of location technology and wireless mobile device in the recent years,location-based services has been widely used. While location-based services is used, location information could be disclosed, which could result in the disclosure of personal privacy. A scheme on the protection of location privacy is proposed, named as LocPriv, which is based on spatial region anonymity. The scheme uses a central server model structure, and combines pseudonym with fake location. Its security and performance is analyzed and verified by experiments. LocPriv has higher anonymity and can protect users＇ location information. To some extent, the scheme can resist the attack of center area.