Quantitative Analysis of Survivability Based on Intrusion Scenarios

摘要

Quantitative analysis of survivability is to use mathematical methods to evaluate the survival situation of the existing network quantificationally. It contributes to detect damage to the system in time and give the appropriate recommendations for improvement, so that the system can provide sustained and stable services. This paper presents a quantitative model based on intrusion scenarios to analysis the survivability of the information system. After constructing the attack trees, the intrusion scenarios are produced. Through calculating the degree of risk of the intrusion scenarios, the survivability of each critical service is determined. Furthermore, the survivability of the information system is measured effectively.