基于字体的中文信息隐藏算法

Chinese text steganography based on character forms

为了将秘密信息嵌入到特定的载体之中,实现安全、高效的信息传输,以达到安全通信或版权保护等目的,针对中文文本设计了基于字体的信息隐藏算法。分析了文本信息隐藏的研究现状和存在的不足,根据不同的安全和嵌入率的需求,给出了3种对电子文本、打印文本、手写文本等皆适用的秘密信息嵌入算法,并且通过数学推导,对3种嵌入方式的嵌入率和嵌入效率等进行了分析比较。对算法的安全性进行了分析,并给出了增强安全性的手段。

To embed secret information into specific carriers, communicate securely and efficiently on the Internet and achieve the objec- tives of secure communication, copyright protection, and so on, a novel Chinese text steganography method based on character forms is designed. First, the current research situation and the shortcomings of text steganography are analyzed Then three embedding methods suitable for text, print text and handwritten text are proposed according to different requirements of secure and embedding rate. Further- more, the embedding rate and efficiency of the three embedding methods are analyzed and compared by mathematical derivation. Finally, the security of algorithm is analyzed, and the measures to enhance security are given.