Formal Analysis of a Fairness E-Commerce Protocol

In this study, a new approach is proposed for analyzing non-repudiation and fairness of E-commerce protocols. The authentication E-mail protocol CMP1 is modeled as finite state machine and analyzed in two vital aspects-non-repudiation and fairness using SMV. As a result, the CMP1 protocol is not fair and so we have improved it. This result shows that it is effective to analyze and check the new features of E-commerce protocols using SMV model checker.