Information-Theoretic Analysis for the Difficulty of Extracting Hidden Information

被引：5
作者：
ZHANG Weiming LI Shiqu CAO Jia LIU Jiufen Department of Information ResearchInformation Engineering UniversityZhengzhou Henan ChinaState Key Laboratory of Information Security Graduate School of the Chinese Academy Sciences Beijing China [1 ,2 ,1 ,1 ,2 ,1 ,21 ,450002 ,2 ,100039 ]
机构：
来源：
Wuhan University Journal of Natural Sciences | 2005年 / 01期
关键词：
information hiding; steganography; extracting attack; difficulty of extraction; unicity distance;
D O I：
暂无
中图分类号：
TN918.1 [理论];
学科分类号：
070104 ;
摘要：
The difficulty of extracting hidden information, which is essentially a kind of secrecy, is analyzed by information-theoretic method. The relations between key rate, message rate, hiding capacity and difficulty of extraction are studied in the terms of unicity distance of stego-key, and the theoretic conclusion is used to analyze the actual extracting attack on Least Significant Bit(LSB) steganographic algorithms.
引用
收藏
页码：315 / 318
页数：4
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