本文關(guān)鍵詞： 無(wú)線(xiàn)傳感器網(wǎng)絡(luò) 路由算法 安全 簽名認(rèn)證　出處：《西安科技大學(xué)》2017年碩士論文　論文類(lèi)型：學(xué)位論文

【摘要】：無(wú)線(xiàn)傳感器網(wǎng)絡(luò)是由感知周?chē)h(huán)境的各種傳感器節(jié)點(diǎn)組成的,是一種多跳自組織的無(wú)線(xiàn)通信網(wǎng)絡(luò)。作為當(dāng)今社會(huì)熱點(diǎn)技術(shù)之一,已被廣泛應(yīng)用于軍事、環(huán)境監(jiān)測(cè)和保護(hù)、綠色農(nóng)業(yè)、工業(yè)監(jiān)測(cè)、智能家居、智能交通、遠(yuǎn)程醫(yī)療等領(lǐng)域。傳感器節(jié)點(diǎn)采用自供電方式,硬件存儲(chǔ)和計(jì)算等能力有限,同時(shí)網(wǎng)絡(luò)拓?fù)涮幱趧?dòng)態(tài)變化中,為此設(shè)計(jì)高效的路由算法是研究的重要方向。無(wú)線(xiàn)傳感器網(wǎng)絡(luò)暴露在外,傳輸信道容易受到竊聽(tīng)和攻擊,信息的安全傳輸問(wèn)題有待更好的解決。本文主要內(nèi)容概括為:1.針對(duì)WSN節(jié)點(diǎn)能量資源有限問(wèn)題和如何實(shí)現(xiàn)能量的高效利用的難點(diǎn),設(shè)計(jì)了一種均勻分簇的層次安全路由算法。算法首先采用正六邊形網(wǎng)格的分簇方式對(duì)區(qū)域進(jìn)行均勻劃分,并設(shè)計(jì)了合理的簇頭選舉和維護(hù)機(jī)制以及數(shù)據(jù)融合策略;為建立高效優(yōu)化的路由鏈路傳輸數(shù)據(jù),又設(shè)計(jì)了層次路由策略以及自動(dòng)查找路由策略;最后采用預(yù)編碼技術(shù)保證數(shù)據(jù)的安全傳輸。仿真表明,所提算法與GRID算法相比,可有效節(jié)約節(jié)點(diǎn)能量、均衡負(fù)載、適應(yīng)大規(guī)模網(wǎng)絡(luò)、延長(zhǎng)生命周期。2.設(shè)計(jì)的路由算法采用網(wǎng)絡(luò)編碼中的預(yù)編碼技術(shù),針對(duì)網(wǎng)絡(luò)編碼數(shù)據(jù)傳輸機(jī)制所存在的代間污染攻擊和網(wǎng)絡(luò)開(kāi)銷(xiāo)大的缺陷,提出一種抵抗代內(nèi)/間攻擊的同態(tài)簽名認(rèn)證方案。方案利用代標(biāo)識(shí)符來(lái)設(shè)計(jì)簽名和驗(yàn)證算法,無(wú)需更換系統(tǒng)公密鑰。理論分析了同態(tài)簽名方案的安全性,并在通信開(kāi)銷(xiāo)和計(jì)算開(kāi)銷(xiāo)兩個(gè)方面分析方案的性能。結(jié)果表明方案可有效檢測(cè)和抵抗代內(nèi)/間攻擊,可實(shí)現(xiàn)多代信源信息獨(dú)立認(rèn)證,具有通信、計(jì)算開(kāi)銷(xiāo)小,效率高,安全性能好的優(yōu)勢(shì)。
[Abstract]:Wireless sensor network (WSN) is composed of sensor nodes that perceive the surrounding environment. It is a multi-hop self-organizing wireless communication network. As one of the hot technologies in the society, wireless sensor network has been widely used in military, environmental monitoring and protection. Green agriculture, industrial monitoring, smart home, intelligent transportation, telemedicine and other fields. Sensor nodes are self-powered, hardware storage and computing capabilities are limited, while the network topology is in dynamic change. Therefore, it is an important research direction to design efficient routing algorithms. Wireless sensor networks are exposed and transmission channels are vulnerable to eavesdropping and attacks. The problem of secure transmission of information needs to be solved better. The main content of this paper is summarized as: 1. Aiming at the problem of limited energy resources of WSN nodes and the difficulties of how to realize the efficient utilization of energy, A hierarchical secure routing algorithm for uniform clustering is designed. Firstly, the hexagonal mesh is used to divide the region evenly, and a reasonable cluster head election and maintenance mechanism as well as data fusion strategy are designed. In order to establish efficient and optimized routing link transmission data, hierarchical routing strategy and automatic lookup routing strategy are designed. Finally, precoding technology is used to ensure the secure transmission of data. Simulation results show that the proposed algorithm is compared with GRID algorithm. It can save node energy, balance load, adapt to large scale network, prolong life cycle. 2. The designed routing algorithm adopts precoding technology in network coding. Aiming at the defects of the network coded data transmission mechanism, such as intergenerational pollution attack and high network overhead, a homomorphic signature authentication scheme is proposed to resist intra-generation / inter-generation attacks. The scheme uses the proxy identifier to design signature and verification algorithms. The security of homomorphic signature scheme is analyzed theoretically, and the performance of the scheme is analyzed in terms of communication overhead and computational overhead. The results show that the scheme can effectively detect and resist intra-and inter-generational attacks. It can realize the independent authentication of multi-generation source information, which has the advantages of communication, low computing cost, high efficiency and good security performance.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類(lèi)號(hào)】：TP212.9;TN929.5

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