A Pairing-Based Group Key Agreement Protocol and Its Analysis
基于对的组密钥协商协议及其分析

This paper proposes a pairing-based group key agreement protocol based on Shim's certification-based tripartite key agreement protocol. This protocol adopts a pseudo-random sequence to avoid the unknown key-share attack and the known-key attack. Some attacks described in the literatures are presented, which proved infeasible in the protocol. And this protocol can achieves the forward security and backward security, when a dynamic group performs it.