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计算机工程 ›› 2008, Vol. 34 ›› Issue (21): 147-149. doi: 10.3969/j.issn.1000-3428.2008.21.053

• 安全技术 • 上一篇    下一篇

基于图像伪装的电子文档安全交换算法

高光勇1,黎新伍2   

  1. (1. 九江学院信息科学与技术学院,九江 332005;2. 江西财经大学国际经济与贸易学院,南昌 330013)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-11-05 发布日期:2008-11-05

Secure Electronic Document Interchange Arithmetic Based on Image Disguise

GAO Guang-yong1, LI Xin-wu2   

  1. (1. College of Information Science & Technology, Jiujiang University, Jiujiang 332005; 2. School of International Trade and Economics, Jiangxi University of Finance & Economics, Nanchang 330013)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-11-05 Published:2008-11-05

摘要: 针对电子文档网络交换存在安全隐患以及签名加密技术易引起攻击者注意的问题,提出一种基于图像伪装的电子文档安全交换算法。根据图像邻域像素关系建立BP模型,把模型输出信号和电子文档通过小波变换转换为冗余信号,对其进行归一、编码、加运算,将运算结果连同BP模型参数值进行加密后隐藏到图像中发送给接收方。实验结果表明该方法操作简便,不可感知性、防篡改性及安全性好。

关键词: 电子文档交换, 图像伪装, 神经网络, 信息隐藏

Abstract: Focusing on security problems in electronic document interchange and encryption bringing attention of attacker, this paper proposes a secure electronic document interchange arithmetic based on image disguise. It builds BP model with the vicinity pixels relation of image, transforms output signal of BP model and document into redundancy signal by wavelet transform, and makes them unitary, coding, adding operation. It hides operation result and parameters of BP model into the image after encrypted, and sends the image to receiver. Experimental results show the method has some advantages such as easy operation, unapperceiving, preventing modifications and good security.

Key words: electronic document interchange, image disguise, neural networks, information hiding

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