空域LSB信息伪装的隐写分析及其对策

回顾了几种针对空域LSB信息伪装的隐写分析方法,包括直方图攻击,RS分析方法和几种通用盲检测方法,同时指出只需要对传统LSB替换方法作很小的改动就可以避开前两种攻击方法,完善了矩阵编码方法,提出了基于分组码理论构造高效信息伪装编码的完整方案,指出采用高效编码方案可以大大降低通用盲检测算法的可靠性。

Steganalysis of spatial LSB-based steganographic algorithms and countermeasures

Current existing steganalytic algorithms are reviewed which can be used to detect hidden messages embedded by spatial LSB-based steganographic algorithms, including histogram attack, RS steganalysis and universal blind detection schemes. It is pointed out that the former two attacks can be avoided by a slight modification on the way of LSB embedding. Moreover, a perfect steganographic encoding scheme based on linear block code theory is proposed and can be used to reduce the reliability of universal blind detection schemes.