An efficient fairness between parties for contract signing using OTP

Contract signing protocol is a new way of interacting two parties online though communication devices. Since communication is done though internet or media so authentication is required between these parties to check the contract is done between right parties or not. The main aim of contract signing is fairness between parties. Although there are various techniques implemented to provide authentication and fairness between these parties such as by R. Song, but these techniques contains some issues, hence a new and efficient technique is implemented here to provide prevention from various attacks and fairness between parties.