Survivability Model of Network System and Its Survivability Analysis

摘要

Survivability has become increasingly important with society's increased dependence of critical infrastructures on computers. Survivability is the capability of a system to fulfill its mission, in a timely manner, in the presence of attacks, failures, or accidents. One way of achieving Survivability is to equip systems with both intrusion tolerance and security mechanisms. In this paper, we describe Survivability concepts and discuss common techniques in fault-tolerance and security for Survivability. Then we propose a Survivability model based on fault-tolerance and security. We also discuss associated activities to support Survivability goals for systems based on commercial off-the shelf (COTS) servers. Finally, we present a systematic method for performing Survivability analysis of services in network system.