  OpenID is a standard decentralized initiative aimed at allowing Internet
users to use the same personal account to access different services. Since it
does not rely on any central authority, it is hard for such users or other
entities to validate the trust level of each entity deployed in the system.
Some research has been conducted to handle this issue, defining a reputation
framework to determine the trust level of a relying party based on past
experiences. However, this framework has been proposed in a theoretical way and
some deeper analysis and validation is still missing. Our main contribution in
this paper consist of a simulation environment able to validate the feasibility
of the reputation framework and analyze its behaviour within different
scenarios.
