A Role-Based Model for Web Services Privacy Delegation

Web services collaborations are highly automatic, dynamic, heterogeneous, and lack protection against corruption of the process. These characteristics impose high levels of risk on the interacting parties. In order to improve the reliability of the system, it is very necessary to make sure the privacy authorization of each service in system designing. This paper proposes a role-based Web services privacy delegation model, which delegates the privacy authorization based on trust relationships of services, then it gives corresponding algorithms to check the validity of privacy delegation of services.