Abstract:

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.

Key words: risk assessment, mobile agent, contract net protocol, united risk assessment