A Distributed Proving and Negotiation Algorithm for Trust Management

The credential collection method plays a vital role in automated trust negotiation (ATN) systems. Most existing work used the traditional trust negotiation method, which brings a much heavy burden to the credential server and causes blind credential fetching problem. This paper presents a distributed proving and negotiation (DPN) algorithm for trust management. DPN can intelligently carry out a remote proving or a local inference for a credential request. Moreover, it can give out all the related proof rules for a request. Both the soundness and the completeness of the algorithm are analyzed, and the experiment results demonstrate that DPN has a better performance than a traditional trust negotiation method.