Actually you should be using S/MIME or GPG if the other party is worried about fraud. If fraud happens (someone claiming to be you signs a contract), it is typi

Actually you should be using S/MIME or GPG if the other party is worried about fraud. If fraud happens (someone claiming to be you signs a contract), it is typically the other party to the contract that loses, because they did insufficient due diligence to ensure that they are entering into an agreement with the correct partner.