WSEAS Transactions on Computers
Print ISSN: 1109-2750, E-ISSN: 2224-2872
Volume 11, 2012
Fairness in Physical Products Delivery Protocol
Author:
Abstract: In an e-commerce transaction, a buyer purchases a physical product, such as a laptop, from an online seller. In an attempt to protect himself, any seller would prefer to collect payment from the buyer before he sends the product. Likewise, the buyer would prefer to have the product shipped to him before he makes a payment to the seller. Both parties have a need to take precautions to minimize their risk in case the other party proves to be untrustworthy. This paper proposes a new e-commerce fair exchange protocol based on verifiable and recoverable encryption of keys. The proposed protocol is based on offline TTP. Only seven messages are exchanged between the parties involved in the protocol. Disputes are resolved electronically in case one party evades.
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Keywords: Fair exchange protocol, E-commerce, Physical products, Cryptographic protocols, Security protocols