An e-commerce fair exchange protocol that enforces the customer to be honest Online publication date: Thu, 27-Nov-2008
by Abdullah Alaraj, Malcolm Munro
International Journal of Product Lifecycle Management (IJPLM), Vol. 3, No. 2/3, 2008
Abstract: A new optimistic fair exchange protocol between a Customer (C) and a Merchant (M) is presented, that makes minimum use of a Trusted Third Party. The protocol is for exchanging a payment with a digital product in the B2C domain. A novel feature of the protocol is that once the parties have agreed to the exchange, then one party is encouraged to be honest whereas the other party is forced to be honest. The protocol has the following features: (1) it comprises of only three messages sent between C and M in the exchange phase; (2) it guarantees strong fairness for both C and M; (3) it allows both parties to be sure of the item that they will receive and (4) it automatically resolves disputes online.
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