【摘要】：密碼學(xué)是信息安全的基礎(chǔ)，貫穿于信息安全的整個(gè)過程，為信息的存儲(chǔ)和傳播提供保密性、完整性、真實(shí)性和不可否認(rèn)性措施。目前，在政治、軍事和社會(huì)生活中，密碼學(xué)的應(yīng)用日益普遍。 在智能交通領(lǐng)域，車聯(lián)網(wǎng)作為是一種自組織、自管理、快速移動(dòng)的戶外通信網(wǎng)絡(luò)系統(tǒng)，已經(jīng)成為未來智能交通系統(tǒng)的核心組成部分。在給交通管理帶來革命性變化的同時(shí)，車聯(lián)網(wǎng)也衍生出來一系列信息安全問題。本文在總結(jié)車聯(lián)網(wǎng)中信息安全問題的基礎(chǔ)上，通過合理的分類，深入研究車聯(lián)網(wǎng)中安全信息認(rèn)證技術(shù)，具體包括： (1)針對(duì)公用車輛信息認(rèn)證問題，結(jié)合無證書聚合簽名思想，利用雙線性對(duì)，提出公用車輛信息認(rèn)證方案。安全分析表明，在隨機(jī)預(yù)言機(jī)模型中，基于q-SDH困難問題和擴(kuò)展逆計(jì)算Diffie-Hellman困難問題下，所提方案在適應(yīng)性選擇消息攻擊下是存在性不可偽造的。仿真實(shí)驗(yàn)表明該方案中車輛之間的通信延時(shí)符合標(biāo)準(zhǔn)，在車輛不多的情況下，車輛間信息的丟包率是可以接受，因此方案具有較好的實(shí)用性。 (2)針對(duì)個(gè)人車輛信息認(rèn)證問題，，結(jié)合路旁單元輔助思想，利用HMAC技術(shù)，提出隱私保護(hù)車輛認(rèn)證方案。該方案能夠滿足車聯(lián)網(wǎng)安全需求。仿真實(shí)驗(yàn)表明在路旁單元的輔助下，一方面車輛的信息延時(shí)比較低，并且隨著車輛增加延時(shí)變化不大，另一方面丟包率對(duì)于路況嚴(yán)重阻塞時(shí)候會(huì)超過50%，但一般情況下滿足需求，有一定的實(shí)用性。
[Abstract]:Cryptography is the basis of information security, which runs through the whole process of information security and provides confidentiality, integrity, authenticity and non-repudiation measures for the storage and dissemination of information. At present, the application of cryptography is becoming more and more popular in political, military and social life. In the field of intelligent transportation, as a kind of self-organizing, self-managing and fast-moving outdoor communication network system, vehicle networking has become the core part of intelligent transportation system in the future. While bringing revolutionary changes to traffic management, a series of information security problems are also derived from the interconnection of cars. On the basis of summarizing the information security problems in the vehicle networking, this paper, through reasonable classification, deeply studies the safety information authentication technology in the vehicle networking, including: (1) aiming at the public vehicle information authentication problem, Combined with the idea of attestation-free aggregate signature, a public vehicle information authentication scheme is proposed by using bilinear pairs. The security analysis shows that the proposed scheme is non-forgery under the adaptive selection message attack based on the q-SDH difficulty problem and the extended inverse computing Diffie-Hellman problem in the stochastic prophecy model. The simulation results show that the communication delay between vehicles is in accordance with the standard, and the packet loss rate between vehicles is acceptable when there are few vehicles, so the scheme has a good practicability. (2) in order to solve the problem of personal vehicle information authentication, a privacy protection vehicle authentication scheme is proposed based on the auxiliary idea of roadside unit and HMAC technology. This scheme can meet the safety requirements of vehicle networking. The simulation results show that with the aid of the roadside unit, on one hand, the information delay of the vehicle is low, and it does not change much with the increase of the vehicle delay, on the other hand, the packet loss rate will exceed 50% when the road condition is seriously blocked. But in general, to meet the needs, there is a certain degree of practicality.
【學(xué)位授予單位】：長安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TN918.4

【參考文獻(xiàn)】

相關(guān)期刊論文 前2條

1 陸海軍;于秀源;謝琪;;可證安全的常數(shù)長度無證書聚合簽名方案[J];上海交通大學(xué)學(xué)報(bào);2012年02期

2 劉輝;李暉;;采用群組密鑰管理的分布式車聯(lián)網(wǎng)信息認(rèn)證方案[J];西安交通大學(xué)學(xué)報(bào);2013年02期

本文編號(hào)：2443855