Trusted Decision Mechanism Based on Fuzzy Logic for Open Network

摘要

—Trust mechanism will be an important trend inthe field of security for open network. But, as an importantfactor risk is little considered in trust model. In this paper,Further works are done in trust and risk separately. Incourse of trust propagation, direct interaction informationof the middle recommendation node is presented, whichexpresses the importance of subjective factor. About riskmechanism, two important factors are considered toimprove the corresponding algorithms: length-limit of therisk propagation path and pre-operation process beforeintegrating these paths. With the help of fuzzy logictechnology, the trusted decision mechanism is presentedwhich is based on trust and risk. Experimental results andsome cases show that the new trusted decision mechanism isreasonable and high-powered.