Model construction and quantitative analysis of autonomic intrusion tolerance system
自律入侵容忍系统的模型构建与量化分析*

Aiming at the absence of self-adaptation ability and quantitative analysis on existent intrusion tolerance system,this paper proposed an adaptive hierarchy intrusion tolerance system based on autonomic computing (AHITAC).Adopting hierarchy modes, the critical modules of AHITAC included confidence evaluation of accessing, active trapping on suspicious information, hierarchy study of applications and classed recovery of system function. By implementing the study and adaptive function of confidence threshold, service classification and trap repository, AHITAC implemented the tolerance on intrusion and suspicious information, improving the ability of self recovery and self optimization on object network. The simulation results show that the object network with AHITAC is stable and tolerant.