【摘要】 随着网络系统逐渐复杂和庞大,特别是网络攻击和破坏行为的日益普遍和多样,网络安全性面临严峻的挑战.网络安全性研究已经成为国际上重大的科学问题之一,也是影响社会经济发展和国家发展战略的重要因素.文章综述了网络安全性的随机模型与评价技术等方面的研究工作,介绍了该领域的研究现状与进展,总结了网络安全性随机模型的若干研究方法和评价技术,分析了网络的可生存性.基于这些讨论,展望了未来网络安全性研究的新方向.更多还原

【Abstract】 Network systems are becoming more complex and larger, and specifically network attacks and security destroy is also increasingly prevalent and multiple. Network security is being confronted with many significant challenges. Network security is one of the most important scientific issues in the world and has been an important factor which effects on social improvement and national develop strategy. In this paper, we provide a complete overview on stochastic models and evaluation techniques for network security. The authors indicate the present status and evolvement in the area of network security. The authors provide several effective and efficient methods for modeling and analysis of network security, and also analyze network survivability. Finally, the authors give some concluding remarks on new and challenging directions for future and potential research of network security.更多还原