KML文件的信息隐藏技术

针对Keyhole标记语言(KML)文件的信息隐藏技术,提出了一种基于KML文件的信息隐藏算法.分析了KML文件区别于扩展标记语言文件的特点,介绍了基于KML文件的信息隐藏算法现状,提出了在KML文件中基于经纬度坐标值的信息嵌入、信息检测算法.该算法通过统计不重要位置的数值来进行分类,再通过将信息隐藏在统计位置后的数位来嵌入信息.检测算法与嵌入算法相同,均通过分类来提取信息.实验结果表明,该算法对载体数据增删攻击和旋转攻击的抵抗性具有鲁棒性.

Information Hiding Technology of KML File

In order to study an information hiding technology of keyhole markup language (KML) file, an information hiding algorithm based on KML file is proposed. Firstly the difference between the characteristics of the KML document and the extensible markup language document is analyzed, and the status of the information hiding algorithm is studied. Then the information embedding algorithm and detection algorithm are proposed in KML file based on latitude and longitude coordinates. In these algorithms the values are classified by means of counting values for unimportant position, and then the information is hidden into the position which has been counted. The detection algorithm is the same as the embedding part, and information is extracted by using the classification. Experimental results show that the proposed algorithm has the higher robustness for resistance to addition and deletion attacks and rotation attacks on carrier data.