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中文摘要：
文章针对移动互联网环境下基于位置的服务（LBS)中存在的位置隐私保护问题，提出一种客户端-服务器体系结构下通过添加假位置来保护用户位置隐私的方案。该方案根据需求设定匿名等级和匿名区域，生成相应的假位置个数，将)t-1个假位置和用户的真实位置进行*匿名处理后发送给LBS服务器，以达到保护真实位置的目的。安全性分析与实验分析表明，该方案能够抵抗位置同质攻击、位置分布攻击，进而有效保护用户的位置隐私。
英文摘要：
In order to solve location privacy protection issue in location-based services (LBS) under the mobile Internet environment, the paper proposes a scheme based on dummy locations under the structure o f client-server to protect the location privacies o f users. The scheme specifies anonymouslevel and anonymous region according to the requirements o f users, generates the corresponding number o f dummy locations, and sends both k -l dummy locations and the user^ real location to the LBS server after the ^-anonymity procession, in order to protect the real location. Security analysis and experimental analysis demonstrate that the scheme can resist location homogeneity attack and location distribution attack, and protect the users* location privacies effectively.
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