| Summary: | 碩士 === 國立交通大學 === 資訊管理研究所 === 93 === Along with the technology evolution, and after overcomes the routing and quality of service problems, the Mobile Ad Hoc Networks, MANET, make the application in this environment more popular than before. MANET can self-organize routing and does not need access point, so it is useful for emergency operation, military environment and conference. Owing to dynamic topology and wireless environment its secure problems are more complex than wired or wireless network environments in the reality applications.
There are many ways for information dissemination during communication, like point-to-point, point-to-multipoint and multipoint-t-multipoint in the network environment; but due to the characteristic of MANET the point-to-point method is not applicable. Multicast is rapidly becoming a more application in the MANET environment. Therefore, the security problems of secure multicast are more significant, and focus this in our research. In addition, the cluster-based MANET can get more efficient than others in the aspect of routing and key management. We will propose secure scheme and scalable architecture for multicast while some node joins or leaves from the multicast tree and key management problems in the above architecture. We make multicast more efficient and secure under the restriction of the dynamic topology and infrastructureless and wireless network constraint in MANET environment. Finally, security analysis present the schemes we proposed are more secure and efficient than the others.
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