摘要
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。
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.
出处
《通信学报》
EI
CSCD
北大核心
2003年第12期156-163,共8页
Journal on Communications
关键词
信息隐藏
信息伪装
隐写分析
盲检测
矩阵编码
空域LSB
information hiding
steganography
steganalysis
universal blind detection
matrix encoding
