Secure and anonymous electronic commerce protocol over a public network

Fair exchange and customerpsilas anonymity are the two important properties of any electronic commerce protocol. However most of the existing protocols have missed this focus and a few have any one of this but not both. This paper proposes a secure and efficient electronic commerce protocol that ensures fair exchange and customerpsilas anonymity for any digital transaction over the public network. The new protocol is designed in such a way that it covers all the transaction process starting from negotiation and registration, withdrawal and transfer of electronic cash, purchase, and arbitration phase. The proposed protocol is superior to the related previous protocols in the area of electronic cash management, key management, communication round, and computational cost.