本文關(guān)鍵詞：車聯(lián)網(wǎng)環(huán)境下的群密鑰管理研究　出處：《浙江工商大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

  更多相關(guān)文章： 車聯(lián)網(wǎng) 群組通信 群密鑰分發(fā) 群密鑰協(xié)商 V2V V2I 自愈

【摘要】：隨著物聯(lián)網(wǎng)技術(shù)的飛速發(fā)展及廣泛應(yīng)用,車聯(lián)網(wǎng)作為物聯(lián)網(wǎng)應(yīng)用的一個重要分支也受到越來越廣泛的關(guān)注。車聯(lián)網(wǎng)是智能交通系統(tǒng)ITS (Intelligent Transportation System)與物聯(lián)網(wǎng)技術(shù)相融合的時代產(chǎn)物,車聯(lián)網(wǎng)技術(shù)的應(yīng)用不僅改善了智能交通管理系統(tǒng),為人們提供了更加安全可靠的駕駛環(huán)境,而且為車載用戶提供了更多的增值和娛樂服務(wù),滿足了車載用戶的娛樂和辦公需求。車聯(lián)網(wǎng)群組通信作為車聯(lián)網(wǎng)通信系統(tǒng)的主要方式,勢必成為研究的熱點和重點。 車聯(lián)網(wǎng)環(huán)境下的群組通信系統(tǒng)中,車輛節(jié)點規(guī)模巨大,群組成員不斷變化更新,報文丟包率大且通訊信道開放,使得車聯(lián)網(wǎng)群組通信面臨諸多安全威脅：惡意攻擊者可能偽造虛假路況信息、竊聽和分析無線信道中的廣播通訊消息,甚至跟蹤車輛節(jié)點等。本文以車聯(lián)網(wǎng)環(huán)境下的車輛節(jié)點為研究對象,重點研究如何實現(xiàn)車輛群組(Group)之間的安全通信,如何建立安全的群會話密鑰等問題。 群會話密鑰的建立主要有兩種方式：群密鑰分發(fā)和群密鑰協(xié)商。群密鑰分發(fā)協(xié)議由群管理者統(tǒng)一分發(fā)群密鑰,協(xié)議構(gòu)造相對簡單,管理方便。群密鑰協(xié)商協(xié)議則由群組中的每個成員共同協(xié)商計算出群密鑰,任何一方都不能預(yù)先確定群會話密鑰,協(xié)議算法相對復(fù)雜,信息交互量大。本文針對這兩種協(xié)議方式,分別提出了兩種適用于車聯(lián)網(wǎng)環(huán)境下的群密鑰分發(fā)和群密鑰協(xié)商方案,論文主要貢獻如下： (1) V2I (Vehicle to Infrastructure)群密鑰分發(fā)方案允許合法車輛節(jié)點在丟失一段時間的廣播消息后,仍能夠恢復(fù)出之前的群會話密鑰。網(wǎng)絡(luò)生命周期長久,會話周期不限制于m的大小。我們的方案很大程度上大降低了網(wǎng)路流量開銷和RSU的通訊負荷,更加適用于現(xiàn)實的車聯(lián)網(wǎng)環(huán)境。 (2) V2V (Vehicle to Vehicle)群會話密鑰協(xié)商方案能夠檢測出所有的惡意車輛節(jié)點,允許所有誠實的節(jié)點共同協(xié)商計算出共享的群會話密鑰,當(dāng)節(jié)點頻繁的加入或離開群組時,可以直接快速的更新群會話密鑰,大大提高了群會話密鑰的更新效率。 最后,本文實驗分析結(jié)果表明我們的方案具有較好的安全性和抗攻擊性,且能夠取得較好的性能開銷。
[Abstract]:With the rapid development of Internet technology and the wide application of Internet of vehicles, as an important branch of networking applications has attracted more and more attentions. Car networking intelligent transportation system ITS (Intelligent Transportation System) product of the times and the integration of networking technology, application of vehicle networking technology not only improve the intelligent traffic management system that provides a more secure and reliable driving environment for people, but also provide more value-added services for mobile users and entertainment, to meet the user's demand for office and entertainment vehicle. Vehicle networking group communication as the main way of car networking communication system, will become the research focus.
Group communication system of car networking environment, vehicle node scale, group members continuously change and update, packet loss rate and open communication channels, making the car networking group communication is facing many security threats: a malicious attacker could fake traffic information, eavesdropping and analysis of radio communication messages in wireless channels, even tracking vehicle nodes. The car networking vehicle node environment as the research object, focuses on how to realize the vehicle group (Group) of secure communication, how to establish a group of session key issues such as security.
A group session key there are two main ways: group key distribution and key negotiation group. Group key agreement by the group manager unified distributed group key agreement, relatively simple, convenient management. Key agreement by each member in the group of joint consultation to calculate group key, any one party cannot advance to determine the group session key agreement algorithm is relatively complex, large amount of information interaction. In this paper the two kinds of protocol, we proposed two different network environment and group key distribution of group key agreement scheme applicable to the car, the main contributions are as follows:
(1) V2I (Vehicle to Infrastructure) scheme allows legitimate vehicle nodes in the broadcast message is lost after a period of time of group key distribution, still can restore the group session key before. The network life cycle is long, the session is not limited to the size of the M cycle. Our scheme greatly reduces the burden of communication network traffic overhead and RSU, car networking environment is more suitable for the reality.
(2) V2V (Vehicle to Vehicle) group session key agreement scheme can detect the malicious node vehicle all, allowing all honest nodes together to calculate the group session key sharing, when nodes join or leave the group, can directly and quickly update the group session key, greatly improving the efficiency of updating the group session the key.
Finally, the experimental analysis results show that our scheme has good security and anti attack, and can achieve better performance overhead.

【學(xué)位授予單位】：浙江工商大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2014
【分類號】：U495;TN918.4

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本文編號：1404822