一种基于移动代理的网络安全联合风险评估系统模型

A System Model for the United Risk Assessment of Network Security Based on Mobile Agents

本文建立了一种基于移动代理的网络安全联合风险评估系统模型(MAURA),分析了系统体系结构、各部分功能,并将合同网的协同方法应用到风险评估中,提出了联合风险评估的机制,研究了评估的具体过程,从构造上克服了Agent间分析经验难于共享借鉴的问题。通过自适应的算法调节策略,提高了系统的分析性能,增强了对于外界负载变换的适应能力。仿真实验结果验证了MAURA是一种具有较高分析性能、可自主适应环境变化的网络安全风险评估系统。

A system model for the united risk assessment of network security is proposed based on mobile agents （MAURA）. This paper analyses the system structure and the function of each part, applies the cooperation method of the contract net protocol to risk assessment, and puts forth a mechanism of united risk assessment. The process of united risk assessment is also studied, which overcomes the problem which is too difficult to share the analytic experience. Meanwhile, MAURA adopts a new algorithm switch policy to aim at heavy loads of detection tasks to increase the system＇s adaptive ability. The experimental results show that MAURA is a more adaptive and efficient system,