基于信任网络的软件可信评价方法

摘要

The software reliability evaluation in the field of trusted computing was studied, and a scheme for software trustworthiness evaluation based on trusted networks was presented. The scheme divides users into different user do-mains through the trusted network model, and then adopts the trusted selection mechanism based on tickets to pro-tect the trustworthiness of devices, and builds the model of the trusted risk tree from trusted terminals. Two aspects of trustworthiness and riskiness are considered to measure software, and the risk probability is calculated from ab-normal behaviors. Multiple terminals and the sliding window model are adopted to evaluate the software trustworthi-ness in the range of the user domain and management domain. The experiments proved the correctness and the credibility of the method.%研究了可信计算领域中的软件可信评价问题，提出了一种基于信任网络的软件可信度量方法，该方法通过信任网络模型将用户划分成不同的用户域，采用可信度量票据的方法保障设备的可信性；在设备可信的基础上建立可信风险树模型，分别从可信和风险两方面对软件进行可信度量，计算异常行为的风险概率；采用多台设备协同工作的方式，通过滑动窗口模型从用户域范围和管理域范围对软件进行可信评价。最后通过实验验证了该方法的正确性和可信性。