Implementing Trust Negotiations In Multisession Transactions

A trust negotiation is a mutual attribute-based authorization protocol between two entities. Trust Negotiation is an approach to regulate the exchange of sensitive information during this process. The proposed framework is a multisession dependable approach to trust negotiations. This framework supports voluntary and unpredicted interruptions, enabling the negotiating parties to complete the negotiation despite temporary unavailability of resources. The Trust-x protocol addresses the issues related to validity, temporary loss of data, and extended unavailability of one of the two negotiators. A peer is able to suspend an ongoing negotiation and resume it with another (authenticated) peer. Negotiation portions and intermediate states can be safely and privately passed among peers, to guarantee the stability needed to continue suspended negotiations. Detailed analysis has been depicted on Trust-x protocol which has several key properties, including validity, correctness, and minimalist. This system also withstands the most significant attacks. An ontology environment is also proposed to provide formal specification of concepts and their interrelationships. This is very essential in complex web service environments. It possesses the purpose of sharing information about credentials and their attributes, needed for establishing trust. KeywordsSecurity and management, dependability, trust negotiations, access control, ontology.