Association for Computing Machinery
In recent years, Trust Negotiation (TN) has been proposed as a novel access control solution for use in open system environments in which resources are shared across organizational boundaries. Researchers have shown that TN is indeed a viable solution for these environments by developing a number of policy languages and strategies for TN which has desirable theoretical properties. Further, existing protocols, such as TLS, have been altered to interact with prototype TN systems; thereby illustrating the utility of TN. Unfortunately, modifying existing protocols is often a time-consuming and bureaucratic process which can hinder the adoption of this promising technology.