Paper 2007/184

Provable password-based tripartite key agreement protocol

Chunbo Ma, Jun Ao, and Jianhua Li

Abstract

A password-based tripartite key agreement protocol is presented in this paper. The three entities involved in this protocol can negotiate a common session key via a shared password over insecure networks. Proofs are given to show that the proposed protocol is secure against forging and chosen message attacks in the case of without actually running a dictionary attack.