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Issue No. 06 - June (2010 vol. 59)
ISSN: 0018-9340
pp: 842-846
Lein Harn , University of Missouri-Kansas City, Kansas City
Changlu Lin , Graduate University of Chinese Academy of Sciences, Beijing
Key transfer protocols rely on a mutually trusted key generation center (KGC) to select session keys and transport session keys to all communication entities secretly. Most often, KGC encrypts session keys under another secret key shared with each entity during registration. In this paper, we propose an authenticated key transfer protocol based on secret sharing scheme that KGC can broadcast group key information to all group members at once and only authorized group members can recover the group key; but unauthorized users cannot recover the group key. The confidentiality of this transformation is information theoretically secure. We also provide authentication for transporting this group key. Goals and security threats of our proposed group key transfer protocol will be analyzed in detail.
Group key transfer protocol, session key, secret sharing, confidentiality, authentication.

C. Lin and L. Harn, "Authenticated Group Key Transfer Protocol Based on Secret Sharing," in IEEE Transactions on Computers, vol. 59, no. , pp. 842-846, 2010.
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