两层无线传感器网络中隐私保护的范围查询

Privacy-Preserving Range Query in Two-Tiered Wireless Sensor Networks

两层无线传感器网络中存储节点负责存储传感节点的数据和处理Sink节点的查询请求.然而,由于存储节点的重要性,使得存储节点成为攻击者攻击的目标,特别是存储节点被攻击者捕获后,攻击者能够获取隐秘的传感数据、伪造传感数据和丢弃部分查询结果等.因此,提出了一种安全的范围查询方案,保证了数据的机密性和真实性,并利用签名融合技术,极大地降低了通信量,且具有较高的完整性检测概率.在此基础上,提出了一种检测率更高的范围查询方案.理论分析和实验结果显示,所提出的方案具有较高的检测率和较低的通信量.

In the two-tiered wireless sensor networks,storage nodes collect data from sensor nodes and answer the queries from the sink. However,for their importance,storage nodes are attractive targets of attack and even might be compromised by the adversary. A compromised storage node may disclose sensitive data to the adversary and return juggled or incomplete sensitive data to the sink. A safe verifiable range query scheme is presented. It offers data confidentiality and query result authenticity. More importantly,it allows sink to verify query result completeness with high probability using signature aggregation technology,which greatly reduces communication cost. And based on the above scheme,it is an improvably secure verifiable range query scheme with higher probability of verification that is proposed. The theoretical analysis and simulations illustrate the schemes have high verification probability and low communication cost.