A dynamic, secure and multi-solutions supported middleware system

In this paper we propose a secure middleware system that provides security functionalities in its integrated components instead of security services. Public key infrastructure (PKI), attribute certificate (AC) and policy are employed in separated components of role based access control (RBAC) model. The secure components are managed and guided by routing based workflow that models the execution environment of cooperative software components from structure relation to running time state and results in high flexibility in dynamic reconfiguration and multisolutions supporting