在开放式网络基于信任的访问控制中,信任量化与评估是授权决策的前提,决策属性权重的确立是信任量化与评估的关键的核心问题。借助专家调查法和模糊分析法提出了基于信息熵隶属度的决策属性权重确定方法,通过算例数据分析表明利用决策属性权重计算所得的结果与实际是相符的,该方法能够保证信任评估的有效性和客观性。 In open network trust-based access control, trust quantification and evaluation are the prerequisites of authorization decision. The establishment of decision attribute weights is the key core issue of trust quantification and evaluation. With expert investigation and fuzzy analysis, this paper proposes a method to determine the weights of decision attributes based on the entropy of information entropy. The analysis of the example data shows that the results calculated by the weights of decision attributes are in accordance with the actual ones. This method can ensure the validity of the trust evaluation Sexuality and objectivity.