| 摘要: |
| 设计安全、合理的密钥管理方法,是解决无线传感器网络安全性问题的核心内容.提出了EEHS(a novel energy efficient and highly survivable dynamic key management scheme),是一种基于EBS(exclusion basis system)的、适合于大规模分簇式无线传感器网络的动态密钥管理方法,它具有安全性强、能量效率高、动态性能好、可扩展性强等特点.一种新型多项式密钥(同化多项式密钥)被运用在了EEHS的EBS管理密钥中,显著地提高了网络的抗捕获能力.当节点被捕获时,EEHS还可以动态取消并更新被捕获节点所拥有的全部密钥,最终驱逐被捕获的节点.为提高网络的能量效率和鲁棒性,EEHS将密钥分配和密钥生成等功能分配给簇内不同的功能节点,且传感器节点轮流作为功能节点使用.仿真与分析结果表明,与相关工作相比,EEHS可以显著提高网络的能量效率、延长网络寿命、加强网络安全性. |
| 关键词: 无线传感器网络 安全性 基于EBS的密钥管理 同化多项式密钥 能量有效性 |
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| 基金项目:Supported by the National Natural Science Foundation of China under Grant Nos.69774011, 60433050 (国家自然科学基金) |
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| Dynamic Key Management Scheme for Wireless Sensor Network |
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KONG Fan-Rui,LI Chun-Wen
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| Abstract: |
| Key management is a critical issue for wireless sensor networks security. This paper proposes EEHS, a novel Energy Efficient and Highly Survivable dynamic key management scheme for large-scale clustered wireless sensor networks based on Exclusion Basis System (EBS). The major advantages of EEHS are strengthened network security, enhanced energy efficiency, high dynamic performance and good support for network expansion. In EEHS, a novel polynomial-based key—the common polynomial key, is designed and employed as the administration key in the EBS, which can enhance the network survivability under attack. All system keys can be refreshed and revoked according to the compromise of sensor nodes. The function of key assignment and key generation are dispatched to different functional nodes in one cluster and sensor nodes also rotate to act as functional nodes in order to improve the energy efficiency and the network robustness. Simulation and analysis results show that compared with related works, EEHS supports the networks with more energy efficiency, longer lifespan and stronger resilience to node compromise. |
| Key words: wireless sensor networks security EBS (exclusion basis system)-based key management common polynomial key energy efficiency |
