车联网环境下安全和隐私问题研究.docxVIP

摘 要 PAGE III 车联网环境下的安全和隐私问题研究 PAGE IV 摘 要 随着无线通信技术的快速发展以及对车辆交通的要求不断提高，从而衍生出了车联网（Vehicular Ad Hoc Network,VANET）。车联网包括V2V（Vehicle-to-Vehicle）和V2I（Vehicle-to-Infrastructure）两种通信方式。这两种通信方式提高了汽车对周围环境的感知能力以及汽车之间的通信范围。车联网作为未来智能交通系统的重要组成部分，提高了车辆驾驶人员的舒适程度和车辆通行效率，加强了行车安全，引起了学术界和工业界的广泛关注。 尽管车联网在智能交通系统有着十分广泛的应用前景，但是由于其自身的网络规模大、开放性、脆弱性等特性，易受到外界的干扰；车辆的行驶轨迹的可统测，导致车联网易发生安全攻击和隐私泄露问题。因此，车联网在设计出高效可靠的安全协议的基础上，还需要提供更加有效的安全和隐私保护方案。 本文针对车联网在实际应用中的情况，在车联网环境下的隐私和安全问题进行了初步的理论研究与实践探索，提出了新的方案。具体工作如下： 1.整理并总结了车联网中存在的安全和隐私问题，系统地回顾了已有的安全认证和隐私保护问题的解决方案，分析了这些方案中存在的优点与缺陷。 2.本文在综合分析已有的车联网的安全认证和隐私保护方案的基础之上，进一步提出了适用于解决车联网的安全认证与隐私保护问题的基于身份的高效匿名批认证方案。该方案与之前已有的方案相比，在安全性、效率得到了改进。 关键词：车联网，认证，信息安全，隐私保护 ABSTRACT ABSTRACT With the rapid development of wireless communication technology and the continuous improvement of vehicle traffic requirements, which derived from the car network (Vehicular Ad Hoc Network, VANET). VANET includes two communication methods. These two ways of communication to improve the cars perception of the surrounding environment and the communication between the car range. Vehicle network as an important part of the future intelligent transportation system to improve the comfort of vehicle drivers and vehicle traffic efficiency, enhanced traffic safety, has aroused widespread concern in academia and industry. Although VANET has a wide range of applications in intelligent transportation systems, it is susceptible to external interference due to its large network size, openness, and vulnerability. The vehicles driving trajectory can be measured and VANET is safe Attack and privacy issues. Therefore, VANET in the design of efficient and reliable security protocol on the basis of the need to provide more effective security and privacy protection program. In this paper, according to the situation of VANET in practical application, this paper makes a preliminary theoretical research a