| Summary: | 碩士 === 國立臺灣科技大學 === 資訊工程系 === 100 === In ad hoc network, VANET is part of MANET, and inherit it many attacks.
This make the securtiy issue, in particular, very important in VANET.
In the past, secure mechanism for VANET always designed under the assumption that road side unit or
a third party using to protect the transmission security. Since this assumption is not reasonable,
a secure mechanism without the third party is the proposed in this thesis. Our proposed is composed of
registered between car and car, building trusted model between car and car and improved verification delay
problem. To increase VANET security and to reduce the delay time, then to reach the relative security.
Finially, this papaer compared with TMSMBM. According the analysis and simulation results,
a better performance on security, efficiency, and delay time.
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