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

Research on Secure Aggregation in VANETs

Author HanShi
Tutor LiuJiQiang
School Beijing Jiaotong University
Course Computer Science and Technology
Keywords Security polymerization Syndication Vehicle ad hoc network communication Aggregation algorithm Data Compression
CLC TN929.5
Type Master's thesis
Year 2010
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VANETs: Vehicle MANET ) is a new technology to improve road traffic safety and efficiency . The global number of motor vehicles has been substantial and has been showing an upward trend , leading to increasing the VANETs system complexity . How to ensure the safety and efficacy of VANETs data transmission VANETs research and applications has become a key issue . The information aggregation is a mechanism to improve data transmission efficiency . How guarantee communication safety and efficiency of communication at the same time , there are many algorithms proposed to address this issue , in securing communications , most of these algorithms are based on public key system under the digital signature technology for secure authentication , so the introduction of a large number of communication overhead and computational overhead ; improve communication efficiency , in order to reduce communication overhead , a large number of some algorithms compress the original message , resulting in the loss of the contents of the message part after the polymerization , there are also some algorithm to some extent give up or reduce the security . Therefore, the lack of an effective program to meet the requirements of VANETs security and efficiency . This article draws on some of the advantages of the algorithm , a trusted computing based the VANETs information security aggregation scheme , authentication and message integrity of the sources can be achieved with a relatively small network overhead . In this paper, the embedded TPM ( Trusted Computing Module) to the vehicle MANET system to achieve the credibility of automotive systems , to prevent the destruction of malicious programs , and the use of TPM secure storage of keys , not malicious user to steal . The last text in the program 's implementation analysis and simulation experiments to demonstrate the performance of the proposed scheme , to prove the superiority of this article scheme in VANETs system .

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