Trust platform is key technology of trusted computing. How to verify if a model is trusted in theory is a signification research work. In this paper, a trust level evaluation method of trusted computing model based on fuzzy logic is presented. By the similarity-based weighted fuzzy reasoning method, the fuzzy trust value between entities which have no direct recommendation in trust chain can be gained and the trust level of trusted models were evaluated based on the trust value calculated. This paper provides a new valuable way for studying trust evaluation of trusted computing models.
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