Multi-negotiation targets in Automated Trust Negotiation over TrustBuilder2 framework

Current Automated Trust Negotiation (ATN) is limited to handle only one negotiation target at a time and performed separately, it may lead to disclose duplicate credentials or duplicate credential requests, when it wants to handle more than one negotiation target, which prolongs negotiation time and consumes unnecessary data transfer between the client and the server. The solution is proposed by inventing a repository, called “the Common Disclosure”, for accumulating every unique credential that has been disclosed in every negotiation step and requires additional verification methods for preventing duplicate disclosures. This solution is primarily implemented over TrustBuilder2 Framework which needs to be technically modified to handle multi-negotiation targets and associated with the Common Disclosure. This solution leads to introduce the Combined Negotiation approach which can handle multi-negotiation targets efficiently.