摘要： 利用3种博弈模型研究信息安全中的攻防策略。讨论不完全信息动态攻防博弈模型下的攻防均衡关系，得到均衡时的策略选择及参数限制条件。考虑攻防的长期和重复性，建立不完全信息下的重复攻防博弈模型，得到长期均衡关系。针对信息安全中攻防双方不能在完全理性情况下进行策略选择的问题，引进有限理性假设条件，运用复制动态求解进化稳定策略，在验证前两个 模型结论有效的基础上，进一步得到解决信息安全问题的有效策略。
关键词:
信息安全,
攻防关系,
不完全信息博弈模型,
均衡,
重复博弈模型,
演化博弈
Abstract: The attack-defense relationship in information security is studied through three game models. The attack and defense equilibrium relationship is discussed with incomplete information dynamic game model, to reach the strategy selection and parameter constraints when the attack and defense relationship getting equilibrium. Taking into account of the long-term and repeatability of the attack and defense relationship, a repeated attack and defense game model under incomplete information is established and long-run equilibrium relationship is reached. Because of the incomplete rationality of decision maker, the limited rationality assumptions is introduced, to verify the validity of the above two models’ conclusion, and getting the effective strategies to solve information security problems with the use of replication dynamic solving evolutionarily stable strategy.
Key words:
information security,
attack-defense relationship,
incomplete information game model,
equilibrium,
repeated game model,
evolution game
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