Paper 2006/318

Chameleon-Based Deniable Authenticated Key Agreement Protocol

Chunbo Ma, Jun Ao, and Jianhua Li

Abstract

As a useful means of safeguarding privacy of communications, deniable authentication has received much attention. A Chameleon-based deniable authenticated key agreement protocol is presented in this paper. The protocol has following properties. Any one of the two participants can’t present a digital proof to convince a third party that a claimed agreement has really taken place. Once a forgery occurs, the original entity can present a digital proof to disclose the forgery.