| Summary: | 碩士 === 國立交通大學 === 資訊管理研究所 === 94 === Because of the improvement of network technology, mobile communication system has combined wired and wireless networks to form complete network topology. It provides the communication architecture for terrestrial mobile communication and an environment for satellite communication system under the architecture of IMT-2000. As the result of widely coverage brought by satellite, it is possible to building up the vision of globular communication network. However, in the environment where satellite communication architecture combine wired and wireless network, a new satellite technology, On Board Procession(OBP), makes utilities of satellite communication more powerful. Although, there are several user authentication machines for mobile communication systems, they are not entirely compatible with satellite communication environment. Therefore, in this thesis, we focus on features of satellite communication system and proposed a novel authentication scheme which fits for satellite systems. Besides, we improvement a system to prove this scheme is a secure system and suit for satellite communications.
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