本文選題：車載自組織網(wǎng) + 位置隱私保護��； 參考：《昆明理工大學》2017年碩士論文

【摘要】：車載自組織網(wǎng)絡(luò)(VANET)包括車與車、車與基礎(chǔ)設(shè)施之間的無線通信,為車輛或者駕駛員提供周邊車輛和道路通行狀況等信息,包括交通事故預(yù)警、娛樂、輔助駕駛、Internet接入等服務(wù),構(gòu)成了未來智能交通系統(tǒng)(ITS)最重要的部分。但是由于車載自組織網(wǎng)絡(luò)是通過無線網(wǎng)絡(luò)進行通信的,和一般的移動自組網(wǎng)相比,規(guī)模龐大,成員復(fù)雜,無線信道開放和移動軌跡可預(yù)見等特點,會不可避免地遭受很多的威脅,安全形勢嚴峻。VANET為車輛提供的各種服務(wù)的前提是需要車輛周期性地廣播信標報文,報文中需攜帶車輛的實時位置和身份等信息,如果這些信息泄露會嚴重威脅用戶的隱私安全。為保護車輛的位置隱私,現(xiàn)有工作主要采用Mix-zone、PIR、k匿名和Group-navigation 等方案。論文分析了 VANET的安全和隱私方面面臨的威脅、需求以及挑戰(zhàn),并對車輛位置隱私保護關(guān)鍵問題展開深入研究。針對現(xiàn)有的車載自組織網(wǎng)絡(luò)(VANET)位置隱私保護方案在匿名更新時受到時間和鄰居數(shù)目限制的問題,提出了一種基于動態(tài)生成組的匿名交換方案(PSDG)。在該方案中車輛在同一組內(nèi)交換匿名,并沿著移動路徑累積所有的匿名混合的機會,最大程度地提高位置隱私保護效果。此外,本文采用單向哈希鏈動態(tài)生成兩個匿名棧,不僅降低了匿名管理的成本,也保證了匿名交換過程的隱私。為了驗證該方案的有效性,我們通過仿真實驗來評估PSDG方案的性能。仿真和分析結(jié)果表明該方案能夠顯著降低車輛被追蹤的概率,提高車輛位置隱私保護效果。
[Abstract]:The vehicle auto organization network (VANET) includes the wireless communication between the car and the vehicle, the vehicle and the infrastructure, providing the vehicle or the driver with the traffic and road traffic conditions, including traffic accident warning, entertainment, auxiliary driving, Internet access and other services, which constitute the most important part of the future intelligent transportation system (ITS). But because of the car The organization network is carried through the wireless network. Compared with the normal mobile ad hoc network, it is huge, complex, the wireless channel is open and the mobile trajectory is foreseeable. It will inevitably suffer a lot of threats. The precondition of.VANET for various services provided by the vehicle is that the vehicle needs to be cyclical. The message of the broadcast beacon needs to carry the real-time location and identity of the vehicle in the message. If the information is leaked, it will seriously threaten the privacy of the users. In order to protect the privacy of the vehicle's location, the existing work mainly uses Mix-zone, PIR, K anonymity and Group-navigation. The paper analyzes the security and privacy aspects of VANET. Threats, demands and challenges are studied and the key issues of vehicle location privacy protection are studied. In view of the existing problem that the VANET location privacy protection scheme is restricted by the number of time and neighbours in the anonymity update, a dynamic generation group based anonymous switching scheme (PSDG) is proposed. The vehicles Exchange anonymity in the same group, and accumulate all the anonymous mixing opportunities along the mobile path to maximize the effect of location privacy protection. In addition, this paper dynamically generates two anonymous stacks using a one-way hash chain, which not only reduces the cost of anonymous management, but also guarantees the privacy of anonymous exchange process. In order to verify the scheme The performance of the PSDG scheme is evaluated by simulation experiments. The simulation and analysis results show that the proposed scheme can significantly reduce the probability of vehicle tracking and improve the effect of vehicle location privacy protection.

【學位授予單位】：昆明理工大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：U463.6;TP309

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