分布式无线传感器网络加密技术研究

发布时间：2018-06-18 16:45

本文选题：无线传感器网络 + 密钥管理　；参考：《电子科技大学》2017年硕士论文

【摘要】：在无线传感器网络安全密钥管理方案上,本文提出了一个基于二元对称多项式的分区域连环扣式存储密钥的密钥分配方案。在同一区域内、不同区域之间按照一定规则存储一定量的二元对称多项式,当相邻节点之间进行相互通信时,我们选择两个节点中所有相同二元多项式构成的哈希函数作为通信会话密钥。通过最后的仿真对比试验,我们发现在网络能耗与加密技术和抗毁性之间虽然存在一定的相互矛盾关系,但这种矛盾并不是不可调和的。在本文中,我们介绍了一个折中的密钥管理方案使网络的性能达到最优。本文主要研究的课题内容:(1)网络能耗和加密技术的关系。对于二元对称多项式来讲,计算能耗和多项式的长短(也就是度数)正相关,存储能耗和节点存储多项式的个数成正比例关系。在本文中,通过能耗分析研究我们可以看到二元多项式适合应用于无线传感器网络加密。(2)网络能耗和抗毁性的矛盾关系。本文选择任意两个相邻节点中所有共有的二元多项式生成的哈希函数作为通信的会话密钥。当部分节点暴露时,由于密钥的多样性,其他未受损节点密钥暴露的可能性将会大大降低。(3)把本文中的方案首先应用到同构无线传感器网络中,对网络的连通性、平均能耗、网络的抗毁性进行理论分析和仿真实验,证实了该方案的合理性和优越性。最后把该方案进行改进后扩展应用到移动异构的网络中,并再次通过仿真来验证该方案也适合于移动异构无线传感器网络中。
[Abstract]:In the security key management scheme of wireless sensor networks, this paper proposes a key distribution scheme based on binary symmetric polynomials. In the same region, different regions store a certain amount of binary symmetric polynomials according to certain rules. When the adjacent nodes communicate with each other, We select the hash function of all the same binary polynomials in the two nodes as the communication session key. Finally, we find that there are some contradictions between network energy consumption, encryption technology and survivability, but this contradiction is not irreconcilable. In this paper, we introduce a compromise key management scheme to optimize network performance. This paper mainly studies the relation between network energy consumption and encryption technology. For binary symmetric polynomials, the computational energy consumption is positively correlated with the length (i.e. degree) of the polynomials, and the storage energy consumption is proportional to the number of node storage polynomials. In this paper, we can see the contradiction between energy consumption and survivability of wireless sensor networks based on the analysis of energy consumption. In this paper, the hash function generated by all the common binary polynomials in any two adjacent nodes is chosen as the session key for communication. When some nodes are exposed, due to the diversity of keys, the probability of key exposure of other undamaged nodes will be greatly reduced. The network survivability is analyzed theoretically and simulated, and the rationality and superiority of the scheme are proved. Finally, the improved scheme is extended to mobile heterogeneous networks, and the simulation results show that the scheme is also suitable for mobile heterogeneous wireless sensor networks.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN918.4;TP212.9;TN929.5

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