基于接收信号强度的传感网组密钥生成协议的研究

发布时间：2018-08-08 18:19

【摘要】：无线传感器网络是当前信息技术的前沿之一,其中传感器网络中的安全问题尤其引人关注。随着无线传感器网络技术不断发展,其在军事、环境等领域的应用前景也越来越广阔,而由于无线传感器设备有限的硬件资源限制使得传统的无线网络安全方案无法直接应用以保证其通信的安全性。目前传感器网络中已存在一些密钥管理的解决方案,但在多个传感器之间动态生成密钥以保证群组通信安全的可用方案还处于研究阶段。本文通过分析和利用现阶段在无线传感器网络中所提出的节点对之间的密钥协商协议,根据群组中密钥协商的通信安全需求,设计了一个针对无线传感器网络群组的安全密钥生成协议。该协议利用无线传感器网络不同信道中互易的接收信号强度信息进行秘密信息的提取,并以群组中某个特定节点对之间的信息衡量为基准生成群组密钥。整个协议可以分为基准节点对之间的密钥生成部分以及基准节点与其他群组节点之间的密钥获取部分。协议可以运行在静态的环境中,并且网络中不需要额外的基础设备。本文首先对协议的系统模型进行了分析,然后详细论述了协议的具体内容。本文还分析了该协议的安全性,最后根据密钥生成的步骤在现实的不同场景中测试了该协议的实际运行情况,并分析了实验结果中不同协议参数下密钥的生成成功率以及通过随机性测试工具测试生成密钥的随机性以验证其安全性。
[Abstract]:Wireless sensor network (WSN) is one of the frontiers of information technology, especially the security problem in WSN. With the continuous development of wireless sensor network technology, its application prospect in military, environment and other fields is more and more broad. However, due to the limited hardware resources of wireless sensor devices, the traditional wireless network security scheme can not be directly applied to ensure the security of its communication. At present, there are some solutions to key management in sensor networks, but the available schemes to dynamically generate keys between multiple sensors to ensure the security of group communication are still in the research stage. Based on the analysis and utilization of the key agreement protocol between node pairs in wireless sensor networks, according to the communication security requirements of key agreement in the group, A secure key generation protocol for wireless sensor network groups is designed. The protocol uses the received signal strength information in different channels to extract the secret information and generates the group key based on the measurement of the information between a particular node pair in the group. The whole protocol can be divided into two parts: the key generation part between the base node pairs and the key acquisition section between the base node and other group nodes. The protocol can run in a static environment and no additional infrastructure is required in the network. Firstly, the system model of the protocol is analyzed, and then the specific content of the protocol is discussed in detail. This paper also analyzes the security of the protocol, and finally tests the actual operation of the protocol in different scenarios according to the steps of key generation. The success rate of key generation under different protocol parameters is analyzed and the randomness of the generated key is tested by the randomness test tool to verify its security.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN918.4;TP212.9

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