基于ZIP文档格式的信息隐藏方法

Information Hiding Method Based on ZIP Document Format

研究ZIP文档的标准格式,提出一种基于ZIP文档格式的通用信息隐藏方法,通过删除ZIP文档中压缩源文件目录区的记录,修改ZIP文档的显示输出,达到隐藏信息的目的。提出一种基于Word 2007 ZIP文档格式的信息隐藏方法,通过替换压缩源文件数据区记录中本地文件头的扩展字段数据,以嵌入秘密信息。理论分析和实验结果表明,上述2种方法具有良好的隐蔽性。

This paper researches standard format of ZIP document,presents a general information hiding method based on ZIP document format.It can delete ZIP document＇s index of central directory to modify the display output,reach the goal of hiding information.It also presents information hiding method based on Word 2007 ZIP document format.It can replace the extra field＇s data of local file header to embed secret information.Theoretical analysis and experimental results show that both the above algorithms have better elusive.