The design of a conference key distribution system

Abstract

In this paper, we propose a conference key distribution system for generating a common secret key for two or more users. In our system, each user possesses a secret key and a public key. Initially, the chairperson constructs a conference key associated with his secret key and the conference members' public keys. Then each member can obtain and authenticate the conference key by using his secret key. Further, we have shown that the security of our proposed system is based on the difficulty of breaking the Diffie-Hellman key distribution system.