The Deniability Analysis for a Deniable Authentication Protocol
Da Wei, Wei Liu, Xiu Zhao · Applied Mechanics and Materials · 2012
The notion of deniable authentication is introduced by Dwork et al., deniable authentication protocols allow a sender to authenticate a message for receiver, in a way that the receiver cannot convince a third party that such authentication ever took place. Raimondo et al. present authentication protocol λProj and deniable version Den-λProj by adding challenge-response mechanism. In this paper we prove the protocol λProj without challenge-response is deniable against malicious verifier under subset witness assumption.