期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2006
卷号：6
期号：3B
页码：144-149
出版社：International Journal of Computer Science and Network Security
摘要：The predictive-coding-based (PCB) steganography can embed a large amount of bits into the code stream of lossless compression with high imperceptibility. However, based on two elaborately chosen statistical features, the proposed steganalytic method can easily find the presence of a secret message with small error probability. To enhance the scheme’s security, a modified one is proposed, which preserves the prediction errors’ distribution by choosing the optimum adjustment parameter. Experimental results prove that the modified scheme can provide near-perfect security in Cachin’s definition and defeat the steganalytic method proposed by ourselves.
关键词：Steganalysis, Steganography, Information Security, Predictive Coding
