A Source-location Privacy Preservation Method Based on Hilbert-filling-curve Routing Protocol in Marine Wireless Sensor Networks
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摘要:
节点位置保护对于海洋无线传感器网络(MWSNs)至关重要，尤其是对于无人值守的环境。然而，由于大多数静态部署，传感器的能量、存储和通信能力的限制，MWSNs容易受到各种位置(和衍生)攻击的影响。该文从攻击和防御两个方面研究节点位置隐私保护问题。首先，针对两种重要节点(包括基站和源节点)提出了一种新的二相定位攻击，它可以在少量的本地无线传输监视中找到基站节点，反向跟踪源节点的位置。与现有方法不同，提出的攻击根据传输方向确定节点位置，从而突破现有的防御。然后，为了抵御这种攻击，该文设计了一种基于Hilbert填充曲线的传感器网络路由节点位置隐私保护方法(HLPS)。攻防理论分析与对抗实验表明，该方法能够保护目标节点的位置隐私，具有较小的通信和计算开销。
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关键词:
- 海上无线传感网 /
- 网络安全 /
- 网络位置隐私保护 /
- Hilbert填充曲线
Abstract:Source node location protection is critical to the Marine Wireless Sensor Networks (MWSNs), especially for unattended environment. However, due to most of the static deployment and the limitations in energy, storage and communication capabilities of the sensors, MWSNs are vulnerable to various location (and derivative) attacks. In this work, the node location privacy protection issues are studied from both aspects of attacks and defenses. First, a new two-phase location attack is proposed for two important types of nodes (including base station and source node). It can locate a base station node within few amounts of local wireless transmission monitoring, and then reversely traces the location of the source node. Different from existing methods, the proposed attack determines the node location based on the transmission direction, which can break through existing defenses. Then, to defend against such attack, a Hilbert-filling-curve-based Location-privacy Protection Scheme (HLPS) is designed for MWSNs. The theory analysis and confrontation experiment of attack and defense show that the proposed scheme owns capable of protecting the location privacy of the target node with moderate communication and computation overhead.
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