| Summary: | 碩士 === 國立嘉義大學 === 資訊工程學系研究所 === 98 === In vehicular networks, a vehicular user can communicate with peer vehicles or connect to Internet. A vehicular user could move across multiple access points belonging to either their home network domain or foreign network domains. In some cases, the real identity or location privacy may be disclosed or traced by malicious attackers. This poses challenges on privacy to the current vehicular networks. On the other hand, when a vehicular user drives to the foreign network, the foreign server has no idea to authenticate the vehicular user who is not the member of foreign server. A roaming concept can be used to solve this problem. In this thesis, we propose a privacy preserving authentication scheme in multi-domains vehicular networks. Our scheme considers three kinds of situations when the vehicular users communicate with the home network or foreign networks, and gives some approaches for them by combining polynomial-pool based key distribution scheme and roaming technology. The proposed authentication protocols are designed for preserving vehicular user’s real identity and location privacy. The security analysis and comparisons with the previous works are also discussed.
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