网络系统的生存性技术研究与实现

网络系统的生存性技术是指在遭受攻击、出现故障或意外事故时,能够及时地完成其关键任务的能力,是目前网络安全研究的新方向.它比传统的信息保护技术、信息保障技术更能满足目前网络应用的需求,拓展了传统的网络安全的概念.从新的角度对网络安全问题进行研究,分析了可生存性与传统网络安全技术的差别,并给出了生存性的基本定义、特征属性、测定标准、实现方法等,介绍了可生存系统设计的两种设计方法,并对两种设计方法进行了对比分析.

Research on the Implementation of Survivability Technology of Network Information System

Network survivability refers to that the system still can complete its key tasks when it suffers from the attacks,failure or the contingency.Survivability has become a new direction in network security.It can better meet the current situation of network application than the traditional security concepts and technologies such as information protection and guarantee.It also gives a new way to research the network security.Firstly,this paper conducts an analysis of the differences between survivability and traditional security concepts,and then it presents the definition,measurements and characteristics of implementing technologies of survivability.Finally,it introduces two methods to realize the survivability and analyzes the differences between the two methods to realize survivable systems.