Interoperation of authentication assurance level between different identity management systems

Identity management (IdM) is the basic element for operation of networking services and an important aspect of networking security. It is difficult to interoperate between different IdM systems directly because of different technologies and framework used in those systems. In this paper, we develop a framework that involves gateways that use a middle language - security assertion markup language (SAML) to convey authentication data, and implement AAL interoperation between IdM systems. The proposed framework does not only provide efficient solution for the interoperation of multi-IdM systems, but also can evidently strengthen the protection of personal private information.