无线传感器网络中基于层次网格的成对密钥预分配
Hierarchical Grid-Based Pairwise Key Pre-distribution in Wireless Sensor Networks
摘要:
无线传感器网络的安全性是一个活跃的研究课题,其中对称和非对称密钥密码学问题已经被研究。由于其在典型传感器节点上的计算可行性,使用相同的密钥来加密和解密消息的对称密钥算法已被深入研究,并完美地部署在这样的环境中。由于无线传感器的基础设施有限,部署这些算法的瓶颈挑战是密钥分配。同样由于资源的限制,传统无线网络中的密钥分配机制在传感器网络中的效率也不高。为了克服密钥分发问题,最近已经引入了几种密钥预分发算法和技术,其在离线阶段为网络节点分配密钥或密钥材料。本文介绍了一种基于通信模式和部署知识建模的补充分发技术。我们的技术是基于分层网格部署。为了赋予与依赖传感器的数量成比例的安全级别,我们使用具有不同权重的不同阶的不同多项式。在寻求我们所提出的工作的价值,我们提供了一个详细的分析所使用的资源,产生的安全性,弹性和连接性与其他相关的工作相比。
英文摘要:
The security of wireless sensor networks is an active topic of research where both symmetric and asymmetric key cryptography issues have been studied. Due to their computational feasibility on typical sensor nodes, symmetric key algorithms that use the same key to encrypt and decrypt messages have been intensively studied and perfectly deployed in such environment. Because of the wireless sensor's limited infrastructure, the bottleneck challenge for deploying these algorithms is the key distribution. For the same reason of resources restriction, key distribution mechanisms which are used in traditional wireless networks are not efficient for sensor networks. To overcome the key distribution problem, several key pre-distribution algorithms and techniques that assign keys or keying material for the networks nodes in an offline phase have been introduced recently. In this paper, we introduce a supplemental distribution technique based on the communication pattern and deployment knowledge modeling. Our technique is based on the hierarchical grid deployment. For granting a proportional security level with number of dependent sensors, we use different polynomials in different orders with different weights. In seek of our proposed work's value, we provide a detailed analysis on the used resources, resulting security, resiliency, and connectivity compared with other related works.
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