基于分片技术的无线传感网数据隐私保护算法研究

发布时间：2018-04-11 05:31

本文选题：无线传感器网络 + 分片　；参考：《南京邮电大学》2017年硕士论文

【摘要】：无线传感器网络是一种以采集、处理和传输为主要工作任务的分布式网络系统。通过无线的方式进行信息数据交换,主要应用于医疗、航天、军事等领域。由于无线传感器节点无线传输和随机部署的特点,其数据易被窃取,因此隐私保护问题显得尤为重要。本文主要研究基于分片技术的无线传感器网络隐私保护问题,主要做了以下三个方面工作。首先,针对基于分片技术的隐私保护算法无法有效应对丢包的问题,提出了非加密的冗余线性隐私保护算法。该算法通过对分片数据加入隐藏信息来达到目标节点对丢包的冗余,通过加入扰动数据,提高隐私保护性,可以实现当部分分片数据丢失时,通过冗余分片中的隐藏数据进行还原。通过TOSSIM进行系统仿真,结果表明在发生部分丢包时,该算法可以完整地还原出原始数据,并从算法的数据精确性、数据还原概率、数据拟合度、通信开销、丢包率等方面与其他算法进行了对比。其次,针对非加密的冗余线性隐私保护算法无法有效应对网络场景不稳定和内部攻击的情况,提出了基于分片技术的隐私同态保护算法。该算法首先通过建立源节点与目标节点之间的反馈树,使分片策略可以动态地调整,同时对隐藏数据和原始数据进行同态加密,并且在目标节点进行数据验证,进一步加强隐私保护性,可以应对网络不稳定造成的丢包率不稳定的情况。通过TOSSIM进行系统仿真,将该算法在与传统的隐私保护协议进行了比较,结果表明其具有较高的隐私保护性能。同时在动态调整、还原概率、通信开销方面进行了对比。最后,针对设计的两种算法进行原型系统设计与实现,展示了两种算法在应对监听、流量分析、数据篡改和重放攻击时的表现,非加密的冗余线性隐私保护算法可以有效应对监听和流量分析攻击,而基于分片技术的隐私同态保护算法可以进一步有效应对数据篡改和重放攻击。
[Abstract]:Wireless sensor network is a kind of acquisition, processing and transmission as the main task of the distributed network system. The information exchange data through wireless means, mainly used in medical, aerospace, military and other fields. Due to the characteristics of wireless sensor nodes in wireless transmission and random deployment, the data is easy to be stolen, so the privacy problem is particularly important. This paper mainly studies the problem of privacy protection in wireless sensor network based on chip technology, mainly in the following three aspects. Firstly, according to the privacy protection algorithm based on chip technology not effectively deal with the problem of the packet loss, the redundant linear non encrypted privacy protection algorithm. The algorithm uses binary data into tablets the hidden information to achieve the target node redundancy on packet loss, by adding disturbance data, improving privacy protection, can be achieved when part of slice data loss When the reduction is carried out by hiding redundant data slices. System simulation was carried out by TOSSIM, the results show that the partial loss, the algorithm can completely restore the original data, and data from the algorithm accuracy, data reduction probability, data fitting, communication overhead, packet loss and other algorithm compared. Secondly, according to the linear redundancy privacy protection algorithm can not effectively deal with non encrypted network scene instability and internal attack situation, put forward to protect privacy homomorphism algorithm based on split based technology. Firstly, through the establishment of feedback tree between the source node and a destination node, the partitioning strategy can be dynamically adjusted. At the same time, the hidden data and the original data of homomorphic encryption, and data validation on the target node, to further strengthen the protection of privacy, can deal with packet loss of network instability caused by the rate of The instability of the system. Through TOSSIM simulation, the algorithm in the privacy protection protocol was compared with the traditional, the result shows that it has high performance. At the same time reducing the probability of privacy protection in the dynamic adjustment, compares the communication costs. Finally, the two algorithms of the design and implementation of a prototype design system, show the two algorithms in dealing with monitoring, traffic analysis, data tampering and replay attack performance, redundant linear privacy protection algorithm can effectively deal with non encrypted eavesdropping and traffic analysis attacks, and privacy homomorphism protection algorithm slicing technology based on can further effectively deal with data tampering and replay attack.

【学位授予单位】：南京邮电大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP309;TP212.9;TN929.5

【参考文献】