本文選題：車載自組織網(wǎng)　切入點(diǎn)：隱私保護(hù)　出處：《西華大學(xué)》2015年碩士論文

【摘要】：為了減少交通事故和提高駕駛者的駕駛水平,各國(guó)政府和科研機(jī)構(gòu)進(jìn)行了諸多研究。車載自組織網(wǎng)絡(luò)由此應(yīng)運(yùn)而生。通過(guò)車輛間的通信以及車輛與路邊單元的通信,車載自組織網(wǎng)絡(luò)能夠收集整理交通事故和道路信息,并將這些信息傳送給網(wǎng)絡(luò)中的所有成員。目前在設(shè)計(jì)和實(shí)施車載自組織網(wǎng)絡(luò)中一個(gè)關(guān)鍵問(wèn)題便是隱私保護(hù)。一方面,我們希望車輛發(fā)出的消息是可認(rèn)證的:另一方面又不希望消息在認(rèn)證的過(guò)程中泄露車輛的隱私。很明顯,隱私保護(hù)和消息的可認(rèn)證性是沖突的。此外,對(duì)車輛的隱私保護(hù)不應(yīng)該被濫用,當(dāng)消息出現(xiàn)爭(zhēng)議時(shí),消息的發(fā)送者能夠被追蹤到。本文旨在解決車載自組織網(wǎng)絡(luò)中的條件隱私保護(hù)問(wèn)題,在總結(jié)和分析現(xiàn)有方案的基礎(chǔ)上,提出了兩種方案,本文的主要內(nèi)容包括以下幾個(gè)方面:1.提出了一種基于實(shí)時(shí)更新偽名證書(shū)的VANETs隱私保護(hù)通信方案。該方案中車輛借助路邊單元的幫助,在車輛想要更新一個(gè)偽名證書(shū),或者現(xiàn)有的所有偽名證書(shū)都將過(guò)期時(shí),即可生成偽名證書(shū),該方案將車輛的身份認(rèn)證和證書(shū)的發(fā)放分開(kāi)交給車輛管理中心和路邊單元。同時(shí)方案給出了未過(guò)期偽名證書(shū)的撤銷方案,以及追蹤爭(zhēng)議車輛身份的方案。最后給出了安全性分析和性能分析。2.提出了一種基于條件匿名環(huán)簽名算法的VANETs隱私保護(hù)通信方案。該方案的設(shè)計(jì)基于一種條件匿名的環(huán)簽名算法,文中給出了該算法在車載網(wǎng)絡(luò)中的具體實(shí)現(xiàn),包括匿名通信以及追蹤方案。該方案的特別之處在于對(duì)惡意車輛的追蹤過(guò)程中,并不需要依賴于路邊單元和車輛管理中心。3.使用NS2和SUMO工具對(duì)車載自組織網(wǎng)絡(luò)中使用的802.11p協(xié)議進(jìn)行了仿真,并對(duì)不同車輛數(shù)下的包投遞率、延遲和吞吐量指標(biāo)給出了分析。
[Abstract]:In order to reduce traffic accidents and improve drivers' driving standards, governments and scientific research institutions have carried out many studies.Vehicle-borne self-organizing network emerges as the times require.Through the communication between vehicles and the communication between vehicles and roadside units, the vehicle-borne ad hoc network can collect and organize traffic accidents and road information, and transmit these information to all members of the network.Privacy protection is a key issue in the design and implementation of vehicular ad hoc networks.On the one hand, we want the message from the vehicle to be authenticated; on the other hand, we do not want the message to reveal the privacy of the vehicle during the authentication process.It is clear that privacy protection and message authentication are conflicting.In addition, the privacy protection of the vehicle should not be abused, when the message is controversial, the sender of the message can be tracked.This paper aims to solve the problem of conditional privacy protection in vehicular ad hoc networks. Based on the summary and analysis of the existing schemes, two schemes are proposed. The main contents of this paper include the following aspects: 1.This paper presents a VANETs privacy protection communication scheme based on updating pseudonym certificates in real time.In this scheme, with the help of the roadside unit, a pseudonym certificate can be generated when the vehicle wants to update a pseudonym certificate, or when all existing pseudonym certificates will expire.The scheme gives vehicle identification and certification separately to the vehicle management center and the roadside module.At the same time, the scheme of revocation of the unexpired pseudonym certificate and the scheme of tracing the identity of the disputed vehicle are given.Finally, the security analysis and performance analysis. 2. 2.This paper presents a VANETs privacy protection communication scheme based on conditional anonymous ring signature algorithm.The design of the scheme is based on a conditional anonymity ring signature algorithm. In this paper, the implementation of the algorithm in vehicle network is given, including anonymous communication and tracking scheme.The special feature of this scheme is that it does not need to rely on roadside unit and vehicle management center.The 802.11p protocol used in vehicle-borne ad hoc networks is simulated by using NS2 and SUMO tools, and the packet delivery rate, delay and throughput under different vehicle numbers are analyzed.
【學(xué)位授予單位】：西華大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：U495;TN929.5;TP391.44

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相關(guān)博士學(xué)位論文 前1條

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本文編號(hào)：1713832