Research Of Automated Trust Negotiation Based On Rough

Today the electronic commerce transactions are developing quickly. There are more requires for both sides of Electronic Commerce transaction such as intelligence, distributing, security and self-determination. Building an Electronic Commerce transaction with frame of MAS is a very good solution for those requires. There is an important problem for Distributed system must be solved which is how to confirm another main body's trust value. Automated trust negotiation can constitute trust relationship with a method of exchanging attributes certificate in distributed environment. When special trust strategy is been satisfied, then visiting the resource or trade will be allowed.Because the traditional automated trust negotiation theory has some disadvantage such as low negotiate efficiency, high probability of failure, this paper proposes an automated trust negotiation model based on rough set theory. The model contains two parts:(1) a trust calculate method based on rough set theory. First, build sets of the Agent's attributes, calculate the significance of different attributes, and then we can calculate the trust value with a method of matrix judge, at last, the trust value which be storage in the knowledge database must be updated. (2) Automated trust negotiation model based on rough set theory. When the automated trust negotiation will be not work, we can calculate the trust value of the other side and we can decide whether or not to continue negotiation.