Conference key distribution schemes for secure digital mobile communications

Authors:
Min-Shiang Hwang;Wei-Pan Yang
Affiliations:
Dept. of Comput. & Inf. Sci., Nat. Chiao Tung Univ., Hsinchu;-
Venue:
IEEE Journal on Selected Areas in Communications
Year:
2006

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Abstract

We propose a new service for digital mobile communication systems. The service enables two or more users to hold a secure conference. Two requirements must be considered: privacy and authentication. Privacy involves ensuring that an eavesdropper cannot intercept the conversations of the parties holding the conference. Authentication involves ensuring that service is not obtained fraudulently in order to avoid usage charges. We present two new conference key distribution schemes for digital mobile communication systems. In these schemes, a group of users can generate a common secret keg over a public channel so that they may hold a secure conference