Verifiable Privacy-Preserving Sensor Network Storage for Range Query
Verifiable Privacy-Preserving Sensor Network Storage for Range Query
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DOI：
10.1109/tmc.2010.236
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发表时间：
2011-09
影响因子：
7.9
通讯作者：
Bo Sheng;Qun A. Li
中科院分区：
文献类型：
--
作者：
Bo Sheng;Qun A. Li
我们考虑了一个混合的两层传感器网络，由常规传感器和特殊的传感器与大存储容量，称为存储节点。在这种结构中，常规传感器将其原始数据“推”到附近的存储节点，而接收器仅将查询扩散到存储节点，并从存储节点“拉”出回复。我们调查的安全和隐私威胁时，传感器网络部署在一个不可信的或敌对的环境。主要的问题是，由于存储节点的重要作用，它们可能很容易成为攻击者妥协的目标。受损的存储节点可能会将存储在那里的数据泄露给破坏数据隐私的对手。此外，它可能会发送错误的信息作为对破坏数据完整性的查询的回复。本文重点研究了传感器网络中的一个基本操作--范围查询。该解决方案框架包括一个隐私保护的存储方案，利用分桶技术混合在一定范围内的数据，和一个可验证的查询协议，采用编码号码，使接收器验证的答复。我们进一步研究了事件检测的性能，范围查询实现的应用程序。我们的仿真结果表明，我们的方案是有效的通信和有效的隐私和安全保护。
We consider a hybrid two-tiered sensor network consisting of regular sensors and special sensors with large storage capacity, called storage nodes. In this structure, regular sensors "push” their raw data to nearby storage nodes and the sink diffuses queries only to storage nodes and "pull” the reply from them. We investigate security and privacy threats when the sensor network is deployed in an untrusted or hostile environment. The major concern is that storage nodes might easily become the target for the adversary to compromise due to their important role. A compromised storage node may leak the data stored there to the adversary breaching the data privacy. Also, it may send wrong information as the reply to a query breaking the data integrity. This paper focuses on range query, a fundamental operation in a sensor network. The solution framework includes a privacy-preserving storage scheme which utilizes a bucketing technique to mix the data in a certain range, and a verifiable query protocol which employs encoding numbers to enable the sink to validate the reply. We further study the performance of event detection, an application implemented by range query. Our simulation results illustrate that our schemes are efficient for communication and effective for privacy and security protection.