Abstract. The rapid rise of federated enterprises entails a new way of trust management by the fact that the enterprise can account for partial trust of its affiliating organizations. On the other hand, password has historically been used as a main means for user authentication because of operational simplicity. We are thus motivated to explore the use of short password for user authentication and key exchange in the context of federated enterprises. Exploiting the special structure of a federated enterprise, our proposed new architecture comprises an external server (managed by each affiliating organization) and a central server (managed by the enterprise headquarter). We are concerned with the development of an efficient authentication and key exchange protocol using password, built over the new architecture. The architecture together with the protocol well addresses off-line dictionary attacks initiated at the server side, a problem rarely considered in prior effort.
Subsequently, Yang REF extended and tailored this two server system to the context of federated enterprises, where the back-end server is managed by an enterprise headquarter and each affiliating organization operates a front-end server.
A New Architecture for User Authentication and Key Exchange Using Password for Federated Enterprises
SEC
Computer Science