Fair exchange constitutes a fundamental mechanism for electronic commerce. Fair exchange assumes that it is possible to verify the correctness of the digi- tal items to be exchanged. However, when an item is indescribable, i.e., it cannot be formally specified, its verification becomes difficult, if not impossible. This hinders a practical deployment of fair exchange. We propose a methodology for the verification of indescribable digital items. The methodology allows a participant in a fair exchange protocol to personally verify the indescribable item without giving him any practical advantage over the other participant, and therefore without violating the fairness imposed by the protocol.

A methodology for verification of digital items in fair exchange protocols with active trustee

DINI, GIANLUCA;
2007-01-01

Abstract

Fair exchange constitutes a fundamental mechanism for electronic commerce. Fair exchange assumes that it is possible to verify the correctness of the digi- tal items to be exchanged. However, when an item is indescribable, i.e., it cannot be formally specified, its verification becomes difficult, if not impossible. This hinders a practical deployment of fair exchange. We propose a methodology for the verification of indescribable digital items. The methodology allows a participant in a fair exchange protocol to personally verify the indescribable item without giving him any practical advantage over the other participant, and therefore without violating the fairness imposed by the protocol.
Bottoni, A; Dini, Gianluca; STABELL KULOE, T.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11568/113230
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