摘要
网络攻防模型是研究网络攻防仿真建模的一项重要内容。目前使用较多攻击树等模型存在不能描述攻防双方的对抗、互动等特性的缺陷。文章研究了基于博弈论的攻防对抗模型,定义了攻防双方博弈的基本要素及相应的纳什均衡,剖析了常见的字典攻击,给出了博弈双方的攻防策略、攻防效用等的具体描述;最后结合Gambit工具进一步细化了字典攻击中的博弈模型,并给出了其纳什均衡。
The network attack-defense model is important composition of network security. The current-used models usually cannot describe the characters of the interaction and confrontation of the both attack-defense sides, which is the chief drawback. The paper proposes the game theory based attack-defense models, defines the elements and the Nash equilibrium of both side of the game. Using the dictionary-attack as an example, this paper characterizes the confrontation policy and its effective, and the Nash equilibrium as the result of Gambit.
出处
《信息网络安全》
2013年第1期52-54,共3页
Netinfo Security
关键词
网络对抗模型
博弈论
字典攻击
纳什均衡
network attack-defense
game theory
dictionary-attack
Nash equilibrium
