计算机工程 ›› 2012, Vol. 38 ›› Issue (17): 136-138,141.doi: 10.3969/j.issn.1000-3428.2012.17.038

• 安全技术 • 上一篇    下一篇

基于线性分组码和湿纸码的三层信息隐藏算法

杨小玲1,张敏情1,2,刘 圆1,雷 雨1   

  1. (1. 武警工程大学电子技术系网络与信息安全武警部队重点实验室,西安 710086;2. 西北工业大学计算机学院,西安 710072)
  • 收稿日期:2011-11-01 修回日期:2012-01-04 出版日期:2012-09-05 发布日期:2012-09-03
  • 作者简介:杨小玲(1987-),女,硕士研究生,主研方向:信息隐藏,信息安全;张敏情,教授、博士;刘 圆、雷 雨,硕士
  • 基金项目:
    国家自然科学基金资助项目(61103231);武警工程大学基金资助项目(WXK2011-10)

Three Layers Steganography Algorithm Based on Linear Block Code and Wet Paper Code

YANG Xiao-ling 1, ZHANG Min-qing 1,2, LIU Yuan 1, LEI Yu 1   

  1. (1. Key Laboratory of Network and Information Security Under the Armed Police Force, Department of Electronic Technology, Engineering University of the Chinese Armed Police Force, Xi’an 710086, China; 2. Computer College, Northwestern Polytechnical University, Xi’an 710072, China)
  • Received:2011-11-01 Revised:2012-01-04 Online:2012-09-05 Published:2012-09-03

摘要: 在LSB算法、线性分组码和湿纸编码的基础上,提出一种高效数据隐藏算法。秘密信息分3层嵌入载体数据中:第1层采用 LSB算法嵌入一部分秘密信息。第2层采用湿纸编码调整方向,用F5算法在n bit信息中嵌入k bit秘密信息。第3层湿纸编码在调整 第2层嵌入方向的同时携带一部分秘密信息。分析结果表明,该算法在相同嵌入效率情况下具有较大的嵌入容量。

关键词: 信息隐藏, LSB算法, 线性分组编码, 湿纸编码, 三层结构

Abstract: Based on LSB algorithm, linear block coding and wet paper coding, this paper presents a new high-efficiency steganographic algorithm. The secret message is embedded into the cover data through three layers: In the first layer, secret message is carried by cover data based on LSB steganographic algorithm. In the second layer, using wet paper coding to select the direction of modification, the paper embeds secret message with F5 on the cover data. The wet paper coding takes the third part of secret message in the third layer. Analysis result shows that the algorithm has more capacity with same embedding efficiency.

Key words: steganography, LSB algorithm, linear block coding, wet paper coding, three-layer structure

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