计算机科学 ›› 2014, Vol. 41 ›› Issue (7): 206-209.doi: 10.11896/j.issn.1002-137X.2014.07.043
高瞻瞻,汤光明,张伟伟
GAO Zhan-zhan,TANG Guang-ming and ZHANG Wei-wei
摘要： 为了分析基于统计特征保持的隐写算法的安全性,将隐写对抗分为以特征子集作为策略和以隐写、隐写分析算法作为策略两种情况建立了两种隐写博弈模型。模型将隐写分析方的检测率作为支付函数,用隐写对抗双方特征子集间的差异反映算法抗统计分析的能力。通过对模型进行均衡分析,给出了各种情况下基于统计特征保持的方式提高隐写系统安全性的最优策略,并得到了均衡局势下的期望支付。
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