Chameleon-based deniable authenticated key agreement protocol secure against forgery

Authors:
Chunbo Ma;Jun Ao;Jianhua Li
Affiliations:
School of Information Security Engineering, Shanghai Jiao Tong University, Shanghai, P.R. China and The State Key Laboratory of Information Security, Institute of Software of Chinese Academy of Sc ...;State Key Laboratory for Radar Signal Processing, Xidian University, Xi'an, Shanxi, P.R. China;School of Information Security Engineering, Shanghai Jiao Tong University, Shanghai, P.R. China
Venue:
OCSC'07 Proceedings of the 2nd international conference on Online communities and social computing
Year:
2007

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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.