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Research on Secure Connectivity Aware Routing Protocol for Vehicular Ad Hoc Networks

Author: LiuLu
Tutor: YangMingXi
School: Wuhan University of Technology
Course: Computer Science and Technology
Keywords: Car MANET Security CAR Authenticate Simulation
CLC: TN929.5
Type: Master's thesis
Year: 2011
Downloads: 86
Quote: 0
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Abstract


Car self-organizing network (VANET: vehicle Ad Hoc Networks) between a vehicle of communication between vehicles and roadside base station mobile ad hoc networks (of MANET: Mobile Ad Hoc Networks), along with economic development, transport of usage is also increasing, so the intelligent transportation system is one of the most extensive area of ??mobile ad hoc network applications. Car MANET node moves fast, frequent changes in the network topology, the nodes between the peer-to-peer network of self-organizing features, decided the car from the network is different from other mobile ad hoc networks. So, how to design a routing protocol can protect information in real-time and reliable transmission difficulty car MANET. Topology-based routing algorithm in-vehicle network applications, packet delay and packet loss phenomenon; based on the location of the routing algorithm to adapt to the frequent changes in the network topology scenarios, it is more suitable for in-vehicle ad hoc networks. CAR (Connectivity Aware Routing) protocol based on the improvements, a new security vehicle ad hoc networks by SCAR (Security Connectivity Aware Routing) protocol, the protocol improved the security flaws of the CAR, CAR message authentication function. The new signature authentication algorithm hcsrTesla, the algorithm on the basis of the TESLA added hash chain self-renewing algorithm. The algorithm for vehicle network provides source authentication, that are resistant to the active attack car network for routing. For the SCAR agreement, the use of its NS2 simulation test, and to write perl analyze program trace file analysis, calculate the average delay of packet transmission, message reception rate. NS2 based simulation results show that, when the case of the presence of network attacks, SCAR agreement can withstand source attack to ensure the correctness of the routing, message transmission reception rate remained at a high level. The main innovation of this paper the following three aspects: (1) the analysis and comparison of the the car network security signature algorithm TESLA signature algorithm authentication time advantage is more suitable for in-vehicle ad hoc network. Defects depleted for the TESLA algorithm hash chain will put forward a new algorithm based on self-updating hash chain: hcsrTesla. (2) analysis of the problems of the CAR protocol practicality and safety, for the safety defect exists CAR protocol, this paper basis of hcsrTesla signature algorithm on a safety car network by SCAR of the agreement, the new agreement the use of source authentication algorithm can prevent car network The black hole in active attacks, can guarantee the authenticity and integrity of the source message. (3) in the Linux system, using the NS2 simulation platform, simulation test was conducted CAR routing protocols and the SCAR routing protocol, and its performance is compared. The SCAR agreement for system security, to ensure the correctness of the routing transmission of data packets.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications
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