一种Word 2007中可无源检测的信息隐藏方法

An Information Hiding Method with "Blind" Detection Based on Word 2007

研究基于文本的信息隐藏技术,对使用文本传输秘密信息,以及版权维护等方面有很大的实用价值。文本,作为信息隐藏的载体,相对于视频、图像和声音,其冗余度更小,所以基于文本的信息隐藏技术发展相对较慢。新的文本文档格式的出现对基于文本的信息隐藏提供了更多的方法和可能。文中研究分析了一种新的文本文档格式——Word 2007采用的Microsoft Office Word XML格式,提出并实现了一种基于Word 2007字体大小微调的可无源检测的信息隐藏方案和算法。理论分析和实验表明算法有效可靠,具有良好的隐蔽性。

The research on information hiding techniques based on text is of great use in transmitting secret information with text and protecting copyright of text.Compared with video,image and voice,text,as the carrier of information hiding,has lower redundancy,so the technology of information hiding based on text developed tardily.The presented new text document format provides more methods and possibility for information hiding based on text.In this paper,a new text document format—Microsoft Office Word XML of Word 2007 is researched and analyzed,and a scheme and algorithm of information hiding with＂Blind＂detection is presented by little modifying the value of character size,then realized.The theoretical analysis and experiment show the algorithm is effective,reliable and possessed of favorable crypticness.