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    題名: A new authenticated group key agreement in a mobile environment
    作者: Lee, Cheng-Chi;Lin, Tsung-Hung;Tsai, Chwei-Shyong
    貢獻者: Department of Computer and Communication Engineering
    關鍵詞: Algebra;Fluorine containing polymers;Mobile telecommunication systems;Network protocols;Public key cryptography;Wireless networks;Wireless telecommunication systems;Bilinear pairing;Diffie-Hellman problem;Discrete logarithm problems;Group key agreement;Provable security
    日期: 2009
    上傳時間: 2010-04-07 21:24:04 (UTC+8)
    出版者: Asia University
    摘要: A group key agreement protocol enables a group of communicating parties over an untrusted, open network to come up with a common secret key. It is designed to achieve secure group communication, which is an important research issue for mobile communication. In 2007, Tseng proposed a new group key agreement protocol to achieve secure group communication for a mobile environment. Its security is based on the decisional Diffie-Hellman assumption. It remedies the security weakness of the protocol of Nam et al. in which participants cannot confirm that their contributions were actually involved in the group key. Unfortunately, Tseng's protocol is a nonauthenticated protocol that cannot ensure the validity of the transmitted messages. In this paper, the authors shall propose a new authenticated group key agreement to remedy it. It is based on bilinear pairings. We shall prove the security of the proposed protocol under the bilinear computational Diffie-Hellman assumption. It is also proven to a contributory group key agreement protocol. © 2009 Institut TELECOM and Springer-Verlag.
    關聯: Annales des Telecommunications/Annals of Telecommunications 64(11-12)
    顯示於類別:[光電與通訊學系] 期刊論文


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