This work focuses on the role of digital identity and trust management mechanisms in online environments, particularly their impact on user decision-making and security. It adopts a quantitative approach, developing a game theoretic model to quantify community effects and other factors in trust decisions. The model considers factors like peer pressure and personality traits, and explores the existence and uniqueness of a Nash equilibrium solution. Synchronous and asynchronous update algorithms are shown to converge to the Nash equilibrium solution, with numerical analysis providing insights into various scenarios and the interplay between user behavior and community effects.
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Alpcan, Tansu, et al. "A game theoretic model for digital identity and trust in online communities." Proceedings of the 5th ACM Symposium on Information, Computer and Communications Security. 2010.
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