车载自组网隐私保护技术和安全协议研究
发布时间：2019-01-27 12:45
【摘要】：车载自组网是智能交通应用和服务的支撑，能为驾驶者提供安全、有序、智能的道路环境。和传统网络一样，车载自组网中的安全和隐私问题不容忽视，它是影响和制约车载自组网使用和推广的重要因素。由于网络形态的特殊性，车辆通信时容易泄露驾驶者的身份和出行路线等个人敏感信息，因此隐私保护在车载自组网中尤为重要，设计符合特定安全需求的通信协议或应用系统是一项非常具有挑战性的工作。 本文首先介绍了在车载自组网通信中保护隐私常用的几种技术，针对每一种技术选择一个代表性的方案或协议介绍它们的系统组成、方案（协议）框架和优缺点。然后提出了一个安全消息验证方案、一个出租车叫车协议和一个车辆导航协议。考虑到车辆流动性强，本文提出的安全消息验证方案使用带有效期的签名密钥来实现车辆合法身份的定期自动撤销，采用“随机化”密钥的方式简化签名操作、同时保证签名的匿名性和签名者身份的可追踪性。使用手机软件呼叫出租车是基于车载自组网的一个应用，本文提出的安全叫车协议使用基于属性的加密技术和自认证公钥签名技术，能为乘客提供灵活的选车功能，规避违约行为的发生，最大程度保护乘客的出行隐私。车辆导航是车载自组网一类重要的舒适性应用，本文提出的安全导航协议使用统一的身份认证平台，车辆通过附近的RSU网关和认证服务器交互，，使用口令证明自己合法身份的同时建立无线安全信道；采用群签名技术生成消费单，既能为服务器核算用户消费情况提供依据，又能保护用户的出行隐私；RSU签发授权票据保证用户获得安全可靠的接力导航服务，同时保护行驶路线不被跟踪。安全性分析表明，本文提出的三个方案（协议）均能满足所在场景下的安全需求，性能分析和仿真实验结果显示它们的运行效率都比较高，适合应用于车载自组网中。
[Abstract]:Vehicular ad hoc network is the support of intelligent transportation application and service. It can provide a safe, orderly and intelligent road environment for drivers. Like the traditional network, the security and privacy problems in the vehicle-mounted ad hoc network can not be ignored. It is an important factor that affects and restricts the use and promotion of the vehicle-mounted ad hoc network. Because of the particularity of the network form, it is easy to reveal the identity and route of the driver when the vehicle communicates, so the privacy protection is especially important in the vehicle ad hoc network. Designing communication protocols or application systems that meet specific security requirements is a challenging task. This paper first introduces several common technologies of privacy protection in vehicle-mounted ad hoc network communications, and selects a representative scheme or protocol for each technology to introduce their system composition, scheme (protocol) framework and advantages and disadvantages. Then a security message verification scheme, a taxi-hailing protocol and a vehicle navigation protocol are proposed. Considering the strong mobility of vehicles, the security message verification scheme proposed in this paper uses the signature key with validity period to realize the automatic revocation of the legal identity of the vehicle on a regular basis, and simplifies the signature operation by using the "randomized" key. At the same time, the anonymity of the signature and the traceability of the signer's identity are guaranteed. Using mobile phone software to call a taxi is an application based on the vehicle-mounted ad hoc network. The proposed security cab-hailing protocol uses attribute-based encryption technology and self-authenticated public key signature technology, which can provide a flexible vehicle selection function for passengers. Circumvent the occurrence of breach of contract, maximize the protection of travel privacy of passengers. Vehicle navigation is an important comfort application in vehicle Ad Hoc network. The security navigation protocol proposed in this paper uses a unified identity authentication platform. The vehicle interacts with the authentication server through the nearby RSU gateway. Establishing wireless secure channel while using password to prove their legal identity; The use of group signature technology to generate consumption orders can not only provide a basis for the server to calculate the user's consumption, but also protect the user's travel privacy. RSU issues authorized tickets to ensure that users have access to safe and reliable relay navigation services, while protecting the route from being tracked. The security analysis shows that the three protocols proposed in this paper can meet the security requirements in the scene. The performance analysis and simulation results show that the performance analysis and simulation results show that they are more efficient and suitable for vehicle ad hoc networks.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U495;TN929.5
本文编号：2416269
[Abstract]:Vehicular ad hoc network is the support of intelligent transportation application and service. It can provide a safe, orderly and intelligent road environment for drivers. Like the traditional network, the security and privacy problems in the vehicle-mounted ad hoc network can not be ignored. It is an important factor that affects and restricts the use and promotion of the vehicle-mounted ad hoc network. Because of the particularity of the network form, it is easy to reveal the identity and route of the driver when the vehicle communicates, so the privacy protection is especially important in the vehicle ad hoc network. Designing communication protocols or application systems that meet specific security requirements is a challenging task. This paper first introduces several common technologies of privacy protection in vehicle-mounted ad hoc network communications, and selects a representative scheme or protocol for each technology to introduce their system composition, scheme (protocol) framework and advantages and disadvantages. Then a security message verification scheme, a taxi-hailing protocol and a vehicle navigation protocol are proposed. Considering the strong mobility of vehicles, the security message verification scheme proposed in this paper uses the signature key with validity period to realize the automatic revocation of the legal identity of the vehicle on a regular basis, and simplifies the signature operation by using the "randomized" key. At the same time, the anonymity of the signature and the traceability of the signer's identity are guaranteed. Using mobile phone software to call a taxi is an application based on the vehicle-mounted ad hoc network. The proposed security cab-hailing protocol uses attribute-based encryption technology and self-authenticated public key signature technology, which can provide a flexible vehicle selection function for passengers. Circumvent the occurrence of breach of contract, maximize the protection of travel privacy of passengers. Vehicle navigation is an important comfort application in vehicle Ad Hoc network. The security navigation protocol proposed in this paper uses a unified identity authentication platform. The vehicle interacts with the authentication server through the nearby RSU gateway. Establishing wireless secure channel while using password to prove their legal identity; The use of group signature technology to generate consumption orders can not only provide a basis for the server to calculate the user's consumption, but also protect the user's travel privacy. RSU issues authorized tickets to ensure that users have access to safe and reliable relay navigation services, while protecting the route from being tracked. The security analysis shows that the three protocols proposed in this paper can meet the security requirements in the scene. The performance analysis and simulation results show that the performance analysis and simulation results show that they are more efficient and suitable for vehicle ad hoc networks.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U495;TN929.5
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