摘要： 入侵容忍系统作为一种新的安全机制，迫切需要一种有效评估其安全性的方法。从实际应用角度出发，将连续时间马尔可夫链(CTMC)嵌入量化模型中，提出一种新的量化方法。将入侵容忍系统的安全性量化为3项指标，从而更有效、直观地分析不同入侵容忍系统对攻击行为的抵御和容忍能力，并通过实验进行了验证。

关键词: 入侵容忍, 安全性量化, 马尔可夫链

Abstract: As an emerging security mechanism, intrusion tolerance systems desire an effective method for performance evaluation. In view of practical application, this paper provides a novel quantification method by embedding Continuous Time Markov Chain(CTMC). On the other hand, it splits the security to three attributes, so as to analyze the defence and the tolerance of intrusion tolerance systems more directly. Some simulation results are presented to verify this method.

Key words: intrusion tolerance, security quantification, Markov chain

中图分类号: 

• TP309