针对工业控制网络(Industrial Control Network, ICN)远程接入场景下未经授权访问、拒绝服务攻击、欺骗攻击以及信息披露等安全问题,通过STRIDE威胁建模方法对该场景下的潜在威胁进行分析,提出一种基于动态贝叶斯博弈的接入检测框架。...针对工业控制网络(Industrial Control Network, ICN)远程接入场景下未经授权访问、拒绝服务攻击、欺骗攻击以及信息披露等安全问题,通过STRIDE威胁建模方法对该场景下的潜在威胁进行分析,提出一种基于动态贝叶斯博弈的接入检测框架。该方法能够将试图接入ICN的非法、恶意请求筛选出来并阻断,同时利用持续进行的多轮博弈迭代以及SDN灵活动态的特性对策略参数进行实时调整,以防止相同恶意接入源的再次访问。仿真实验结果表明,随着博弈轮数的增加,相比于现有的两类恶意接入防御方法,该框架的检测准确性提升了3%以上,假阳性比例下降了1.2%以上,检测效率提升了14.7%以上,且具有较好的鲁棒性。展开更多
Cognitive bias,stemming from electronic measurement error and variability in human perception,exists in cognitive electronic warfare and affects the outcomes of conflicts.In this paper,the dynamic game approach is emp...Cognitive bias,stemming from electronic measurement error and variability in human perception,exists in cognitive electronic warfare and affects the outcomes of conflicts.In this paper,the dynamic game approach is employed to develop a model for cognitive bias induced by incomplete information and measurement errors in cognitive radar countermeasures.The payoffs for both parties are calculated using the radar's anti-jamming strategy matrix A and the jammer's jamming strategy matrix B.With perfect Bayesian equilibrium,a dynamic radar countermeasure model is established,and the impact of cognitive bias is analyzed.Drawing inspiration from the cognitive bias analysis method used in stock market trading,a cognitive bias model for cognitive radar countermeasures is introduced,and its correctness is mathematically proved.A gaming scenario involving the AN/SPY-1 radar and a smart jammer is set up to analyze the influence of cognitive bias on game outcomes.Simulation results validate the effectiveness of the proposed method.展开更多
文摘针对工业控制网络(Industrial Control Network, ICN)远程接入场景下未经授权访问、拒绝服务攻击、欺骗攻击以及信息披露等安全问题,通过STRIDE威胁建模方法对该场景下的潜在威胁进行分析,提出一种基于动态贝叶斯博弈的接入检测框架。该方法能够将试图接入ICN的非法、恶意请求筛选出来并阻断,同时利用持续进行的多轮博弈迭代以及SDN灵活动态的特性对策略参数进行实时调整,以防止相同恶意接入源的再次访问。仿真实验结果表明,随着博弈轮数的增加,相比于现有的两类恶意接入防御方法,该框架的检测准确性提升了3%以上,假阳性比例下降了1.2%以上,检测效率提升了14.7%以上,且具有较好的鲁棒性。
文摘Cognitive bias,stemming from electronic measurement error and variability in human perception,exists in cognitive electronic warfare and affects the outcomes of conflicts.In this paper,the dynamic game approach is employed to develop a model for cognitive bias induced by incomplete information and measurement errors in cognitive radar countermeasures.The payoffs for both parties are calculated using the radar's anti-jamming strategy matrix A and the jammer's jamming strategy matrix B.With perfect Bayesian equilibrium,a dynamic radar countermeasure model is established,and the impact of cognitive bias is analyzed.Drawing inspiration from the cognitive bias analysis method used in stock market trading,a cognitive bias model for cognitive radar countermeasures is introduced,and its correctness is mathematically proved.A gaming scenario involving the AN/SPY-1 radar and a smart jammer is set up to analyze the influence of cognitive bias on game outcomes.Simulation results validate the effectiveness of the proposed method.
