Authenticated Multiple Keys Exchange Protocol Based on Bilinear Pairings

Harn and Lin proposed an authenticated key agreement without using one-way hash functions. It enables two communicating parties to establish four common session keys by sending two Diffie-Hellman public keys in a single round of message exchange. However, to resist the known key attack, only three common session keys can be used. Over the past years, all researches study to establish four common session keys and all four common session keys can be used. In this paper, we shall extend these protocols to establish 36 common session keys in each round of key agreement protocol. The proposed protocol is based on bilinear pairings. Moreover, the security and efficiency of our proposed protocol are presented.