基于XML伪编译的信息隐藏算法  

Information hiding algorithm based on XML fake compile

作　　者：蒋斌[1] 平西建[1] 张涛[1] 

机构地区：[1]信息工程大学信息工程学院,郑州450002

出　　处：《东南大学学报（自然科学版）》2007年第A01期173-176,共4页Journal of Southeast University：Natural Science Edition

基　　金：国家自然科学基金资助项目(60473022)

摘　　要：基于XML伪编译的信息隐藏算法,首先将XML文档中需要安全保护的数据以二进制的形式存放于内存,把这些二进制数据分别以每1位长度、2位长度和4位长度互不重叠的平均分为三个数组并保存,根据嵌入信息的长度来选择相应数组,当嵌入信息是"1"时对该数组中对应的单位长度数据进行取反运算,嵌入信息为"0"则不做处理.实验结果表明:该算法不改变XML逻辑结构、标识字体等其原始的规范性、标准性,隐藏容量比修改XML逻辑结构、标识字体等其它隐藏算法高,而且更具有安全性.采用伪编译的信息隐藏算法不改变XML文件内容的逻辑结构、标识字体,而是从XML数据的安全角度,通过利用对XML内部重要数据的伪编译来实现信息隐藏.The data that need to be protected safely are put into memory with binary tbrmat firstly in the algorithm; they are then equivalently disparted to three arrays according to each one bit length, two bits length and four bits length separately and saved; then, the corresponding array was chosen by the length of the embeding information. The corresponding length data of the chosen array would be taken in reverse if the embeding data was bit ＂1＂, but nothing to do if the embeding data was bit ＂0＂. The results show that the algorithm dose not change the logic structures, markup fonts of the original XML （extensible markup language） document; the hiding capacity is much bigger than the other algorithms such as based on the changing logic structures or changing markup fonts, and the security is also much better. The algorithm dose not change the logic structures ,markup fonts of the original XML document, but from the point of the security view of XML document, use the fake compile of the important data of XML document to achieve information hiding.

关 键 词：XML 信息隐藏 伪编译 

分 类 号：TP2[自动化与计算机技术—检测技术与自动化装置]