Protecting Movement Trajectories Through Fragmentation

Protecting Movement Trajectories Through Fragmentation
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通过碎片保护运动轨迹

DOI:
10.1007/978-3-319-11569-6_24
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Kurt Rothermel
Kurt Rothermel
中科院分区:
--
文献类型:
--
作者:
Marius Wernke;Frank Dürr;Kurt Rothermel

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基于位置的应用(LBA),如地理社交网络,兴趣点查找器和实时交通监控应用已经进入人们的日常生活。高级LBA依赖于以可扩展的方式管理多个用户的移动轨迹的位置服务(LS)。然而,暴露轨迹信息会引起用户隐私问题,特别是在LS不受信任的情况下。例如,攻击LS的攻击者可以使用检索到的用户轨迹进行跟踪、抢劫或跟踪用户移动。为了限制滥用的轨迹数据,我们提出了一种新的方法,在不可信的服务器上的轨迹的安全管理。我们不是将用户的完整轨迹提供给单个LS,而是将轨迹分成一组片段,并将片段分布在不同提供商的LS之间。通过分发碎片,我们避免了在LS受损的情况下的单点故障,而不同的LBA仍然可以根据用户定义的访问权限重建轨迹。在我们的评估中,我们通过使用真实的世界轨迹和现实的攻击者使用地图知识和统计信息来预测和重建用户的运动来展示我们的方法的有效性。
Location-based applications (LBAs) like geo-social networks, points of interest finders, and real-time traffic monitoring applications have entered people’s daily life. Advanced LBAs rely on location services (LSs) managing movement trajectories of multiple users in a scalable fashion. However, exposing trajectory information raises user privacy concerns, in particular if LSs are non-trusted. For instance, an attacker compromising an LS can use the retrieved user trajectory for stalking, mugging, or to trace user movement. To limit the misuse of trajectory data, we present a new approach for the secure management of trajectories on non-trusted servers. Instead of providing the complete trajectory of a user to a single LS, we split up the trajectory into a set of fragments and distribute the fragments among LSs ofdifferentproviders. By distributing fragments, we avoid a single point of failure in case of compromised LSs, while different LBAs can still reconstruct the trajectory based on user-defined access rights.In our evaluation, we show the effectiveness of our approach by using real world trajectories and realistic attackers using map knowledge and statistical information to predict and reconstruct the user’s movement.
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DOI: --
发表时间: 2011
影响因子: --
作者:
E. Rukzio;Johannes Schöning;Michael Rohs;Jonna Häkkilä;Raimund Dachselt
通讯作者: Raimund Dachselt
DOI: 10.1007/s00779-012-0633-z
发表时间: 2012
影响因子: --
作者:
Marius Wernke;P. Skvortsov;Frank Dürr;K. Rothermel
通讯作者: Marius Wernke;P. Skvortsov;Frank Dürr;K. Rothermel