本文選題：Ad　切入點(diǎn)：hoc　出處：《華東交通大學(xué)》2014年碩士論文

【摘要】：當(dāng)我們面對(duì)大地震、洪澇等自然災(zāi)害；較大的交通事故；甚至遭受恐怖襲擊等特殊情況發(fā)生時(shí)，各種組織都會(huì)在第一時(shí)間派出人員去處理該事件，在這種情況下應(yīng)急通信的建立是最重要的事情之一。常用的應(yīng)急通信方式如基于衛(wèi)星的應(yīng)急通信等通信方式存在使用價(jià)格高、組網(wǎng)不方便、容易被干擾等問題，體現(xiàn)出這些通信方式的局限性。近年來(lái)，移動(dòng)Ad hoc網(wǎng)絡(luò)成為無(wú)線通信中的一個(gè)研究熱點(diǎn)，因?yàn)锳d hoc網(wǎng)絡(luò)的構(gòu)建不需要依靠基礎(chǔ)設(shè)施；組建網(wǎng)絡(luò)的節(jié)點(diǎn)可以移動(dòng)；以及網(wǎng)絡(luò)易于構(gòu)建等特點(diǎn)。同時(shí)，Ad hoc網(wǎng)絡(luò)非常容易遭受很多的網(wǎng)絡(luò)攻擊，對(duì)加入Ad hoc網(wǎng)絡(luò)的節(jié)點(diǎn)進(jìn)行身份認(rèn)證能夠有效的防止非授權(quán)用戶訪問網(wǎng)絡(luò)，提高網(wǎng)絡(luò)的安全性。 國(guó)內(nèi)外很多的研究機(jī)構(gòu)都對(duì)Ad hoc網(wǎng)絡(luò)的安全問題進(jìn)行了深入研究，很多學(xué)者提出了一系列的Ad hoc網(wǎng)絡(luò)認(rèn)證模型與策略。本文對(duì)現(xiàn)有的認(rèn)證模型與策略進(jìn)行了研究，，提取了這些模型中適合大規(guī)模布置Ad hoc網(wǎng)絡(luò)身份認(rèn)證的優(yōu)點(diǎn)，結(jié)合在實(shí)際應(yīng)用中的具體情況，提出了移動(dòng)Ad hoc網(wǎng)絡(luò)在應(yīng)急通信中的身份認(rèn)證協(xié)議。較好的解決了應(yīng)急Ad hoc網(wǎng)絡(luò)身份認(rèn)證問題。 本文主要研究工作和成果如下： （1）討論了Ad hoc網(wǎng)絡(luò)中常用的幾種身份認(rèn)證模型，分析了各種方案的優(yōu)缺點(diǎn)，得出采用分布式認(rèn)證模型適合移動(dòng)Ad hoc網(wǎng)絡(luò)在應(yīng)急通信中進(jìn)行身份認(rèn)證。 （2）移動(dòng)Ad hoc網(wǎng)絡(luò)在應(yīng)急通信中，點(diǎn)對(duì)多點(diǎn)的通信非常重要，這樣可以協(xié)調(diào)整個(gè)網(wǎng)絡(luò)中資源，高效的解決出現(xiàn)的突發(fā)情況，應(yīng)用廣播加密技術(shù)能夠有效的保證消息在廣播過程中的安全性。將門限加密機(jī)制引入到基于身份的廣播加密中，給出了應(yīng)急移動(dòng)Ad hoc網(wǎng)絡(luò)動(dòng)態(tài)門限廣播加密方案，有效克服了在網(wǎng)絡(luò)中單點(diǎn)失效問題，該方案通過證明達(dá)到IND-sID-CPA安全性。 （3）將口令認(rèn)證與Ad hoc網(wǎng)絡(luò)中的分布式認(rèn)證模型相結(jié)合，提出了基于廣播加密的應(yīng)急移動(dòng)Ad hoc網(wǎng)絡(luò)身份認(rèn)證方案。通過口令認(rèn)證解決了使用者與設(shè)備的一一對(duì)應(yīng)，使用分布式認(rèn)證解決了大規(guī)模布置Ad hoc網(wǎng)絡(luò)時(shí)對(duì)節(jié)點(diǎn)的身份認(rèn)證問題。 （4）對(duì)給出的基于廣播加密的應(yīng)急移動(dòng)Ad hoc網(wǎng)絡(luò)身份認(rèn)證方案進(jìn)行了安全性分析，得出方案的計(jì)算開銷較小、能夠應(yīng)對(duì)常見的網(wǎng)絡(luò)攻擊。
[Abstract]:When we are faced with major earthquakes, floods and other natural disasters, major traffic accidents, or even special circumstances such as terrorist attacks, various organizations will send personnel to deal with the incident in the first place. In this case, the establishment of emergency communication is one of the most important things. Common emergency communication methods, such as satellite-based emergency communication, have problems such as high use price, inconvenient networking, easy interference and so on. In recent years, mobile Ad hoc networks have become a research hotspot in wireless communication, because the construction of Ad hoc networks does not depend on infrastructure, and the nodes can be moved. At the same time, Ad hoc network is vulnerable to a lot of network attacks. Authentication of nodes joining Ad hoc network can effectively prevent unauthorized users from accessing the network and improve the security of the network. Many research institutions at home and abroad have carried out in-depth research on the security of Ad hoc networks, and many scholars have proposed a series of authentication models and policies for Ad hoc networks. In this paper, the existing authentication models and policies are studied. The advantages of these models which are suitable for large-scale Ad hoc network authentication are extracted. The identity authentication protocol of mobile Ad hoc network in emergency communication is proposed, which solves the problem of identity authentication in emergency Ad hoc network. The main work and results of this paper are as follows:. This paper discusses several authentication models commonly used in Ad hoc networks, analyzes the advantages and disadvantages of various schemes, and concludes that the distributed authentication model is suitable for mobile Ad hoc networks to authenticate identity in emergency communication. Mobile Ad hoc network in emergency communication, point to point communication is very important, so as to coordinate the resources of the entire network, and efficiently solve the burst situation. The application of broadcast encryption technology can effectively guarantee the security of message in broadcast process. The threshold encryption mechanism is introduced into identity-based broadcast encryption, and the dynamic threshold broadcast encryption scheme for emergency mobile Ad hoc network is presented. The problem of single point failure in the network is overcome effectively. The scheme achieves IND-sID-CPA security by proving. 3) combining password authentication with distributed authentication model in Ad hoc network, an identity authentication scheme for emergency mobile Ad hoc network based on broadcast encryption is proposed, which solves the one-to-one correspondence between user and device through password authentication. Distributed authentication is used to solve the problem of authentication of nodes in large scale Ad hoc networks. In this paper, the security of the proposed authentication scheme based on broadcast encryption for emergency mobile Ad hoc networks is analyzed. It is concluded that the computational cost of the scheme is relatively small, and the scheme can deal with common network attacks.
【學(xué)位授予單位】：華東交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TP393.08

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本文編號(hào)：1699036