A Formal Method for Analyzing Fair Exchange Protocols

In the area of formal analyzing of security protocols, more and more attention has been given to analyzing properties of fair exchange protocols such as non-repudiation and fairness. On the basis of analyzing the limitations of existing methods, this paper presents a new method to analyze fairness and non-repudiation, in which PLTL are used to describe non-repudiation and fairness, and the model-check method is combined to analyze the properties. In this way, we can detect out one fairness flaw of fairZG protocol.