现实环境中基于虚拟用户的LBS位置隐匿方法

A LBS location hiding method based on virtual users in real environment

当前,基于位置服务LBS的应用得到了广泛的发展,并极大地方便了人们的生活。然而,位置也可能泄露大量用户隐私,这使得关于位置隐私的保护变得尤其重要。虽然现有技术在很大程度上解决了隐私保护问题,但在效果上还未能达到预期目标。对此,提出了一种基于现实环境的隐私保护方法Dummy-Ex,通过生成一系列虚拟用户,并构建逼真的移动轨迹,从而实现隐私保护的目的。实验表明,此方法在安全性和有效性方面都能达到较好的效果。

At present,Location-Based Service(LBS)has been widely developed and greatly facilitated people’s lives.However,location exposure may reveal users’privacy,which makes the protection of location privacy increasingly important.Although current technologies can solve the privacy protection concern to a large extent,people still expect better protection of location privacy.In this regards,a privacy protection method based on real environment,named Dummy-Ex,is proposed.Through generating a series of virtual users and building realistic movements,Dummy-Ex can protect the user privacy well.Experiments show that this method can reach very good results in terms of effectiveness and safety.