中文摘要：

在应用广泛的Word文档中隐藏秘密信息意义巨大，在对Word2007中document．xml文件的“修改标识”特性分析的基础上，提出了，一种的新的信息隐藏方法。该方法首先根据logistic方程伪随机序列生成器产生的伪随机二进制序列，去抽取载体文件document．xml中特定的“修改标识”属性值，而后用秘密信息的十六进制码替换抽取的属性值后六位，从而达到隐藏秘密信息的目的。实验结果表明，基于document．xml文件中“修改标识”属性值的信息隐藏新方法，与既有的基于Word的信息隐藏方法相比，具有安全性更高、隐蔽性更强等优点。

英文摘要：

It is of great significance to hide some secret information in a Word document. Based on analyzing the ＂revision identifiers＂ in document, xml of Word 2007 document, propose a new information hiding method. According to a pseudo- random binary sequence which is produced by logistic pseudo-random sequence generator,extract certain attributes of＂ revision identifiers＂ in document, xml,and change the last six attributes values with the hexadecimal secret information, achieving the purpose of hiding secret information. The ex- perimental result show that compared with the previous hiding ways based on Word, the new hiding way based on the ＂revision identi- fiers＂ is better in robustness and safety and so on.