CAJ | 학술논문

信任评估是目前可信计算研究的热点，文章针对目前信任评估方法的不足，结合模糊集合理论在可信计算环境下给出基于相似度的信任评估推理机制。在对信任链上实体评估过程中，融入实体的间接信任度，体现了客观因素的重要性，鉴于实体信任的动态性，引入时间衰减函数和自适应权重系数给出信任更新模型。在定义基于 Hamacher算子相似度的基础上给出新的可信计算信任链模糊评估方法。模拟实验表明该推理方法的可靠性和评估结果的可信性优于同类评估方法。
신임평고시목전가신계산연구적열점，문장침대목전신임평고방법적불족，결합모호집합이론재가신계산배경하급출기우상사도적신임평고추리궤제。재대신임련상실체평고과정중，융입실체적간접신임도，체현료객관인소적중요성，감우실체신임적동태성，인입시간쇠감함수화자괄응권중계수급출신임경신모형。재정의기우 Hamacher산자상사도적기출상급출신적가신계산신임련모호평고방법。모의실험표명해추리방법적가고성화평고결과적가신성우우동류평고방법。
T rust assessment has become a research focus in trusted computing .A trust assessment and reasoning mechanism based on similarity degree combined with fuzzy set theory is given under the trusted computing environment in view of the defects of current trust assessment methods .In the process of trust assessment of entities in the trust chain ,the indirect trust degree of entities is intro-duced ,reflecting the importance of the objective factors .According to the dynamic character of the trust of entities ,a trust renewal model is provided by introducing the time-attenuation function and the self-adaptive weighting coefficient .A new fuzzy assessment method of trust chain in trusted com-puting is presented on the basis of the definition of the similarity degree based on Hamacher operator . The results of simulation experiments show that the reliability of this reasoning method and the credi-bility of the assessment results are superior to those of other methods .