【摘要】 传统的基于位置信息的服务(LBS)的隐私保护需要LBS提供者(简称LSP)与用户之间通过第三方作为中介来进行信息交换,但这种模式极易遭到攻击者攻击。为此提出一种基于K-匿名机制的隐形空间算法KABSCA(k-anonymity based spatial cloaking algorithm),通过移动设备独立建立一个分布式网络直接与LSP通讯进而避免了第三方的安全威胁。仿真实验显示:使用这种算法,用户可以享受到高质量的信息服务以及高度的隐私保护。更多还原

【Abstract】 Privacy protection of the traditional location-based services(LBS) needs a third party as an intermediary between LBS provider(referred to as the LSP) and users to exchange information,but this model can be easily subjected to the attack of the attacker.So a spatial cloaking algorithm based on K-anonymity mechanisms KABSCA(k-anonymity based spatial cloaking algorithm) is proposed in the paper,which independently uses mobile devices to establish a distributed network for LSP communication directly and thus avoids security threats from a third party.The extensive simulations show that with the implementation of this algorithm,users can enjoy high-quality information services and a high degree of privacy protection.更多还原