摘要
提出了一种环形的入侵容忍系统结构,并描述了数据一致性和服务器控制算法。当在线服务器数目大于两倍故障服务器数目时,该系统实现了服务数据的正确一致性,并通过动态调整在线服务器数目提高了系统的入侵容忍能力。仿真实验分析了在面临入侵情况下系统的可用性性能,并在实例中得出了该系统可用性较优的时间区间,为进一步提高系统的安全性和服务能力提供了一定的依据。
An annular architecture for the intrusion-tolerance system is presented. The data consistency algorithm and control algorithm for servers are described in detail. This system guarantees the data consistency when the total of servers online is more than twice the number of malicious servers, and the performance of intrusion-tolerance can be improved by adjusting the number of servers online dynamically. The system availability is illustrated in the simulation experiments and a time zone of higher availability is also presented.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
2010年第4期589-592,共4页
Journal of University of Electronic Science and Technology of China
基金
国家自然科学基金(60774091)
陕西省自然科学基金(SJ08F14)
关键词
环形结构
可用性
一致性
入侵容忍
网络安全
annular architecture
availability
consistency
intrusion tolerance
network security
