计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (27): 130-131.DOI: 10.3778/j.issn.1002-8331.2008.27.041

• 网络、通信、安全 • 上一篇    下一篇

一种新的抗剪切的数字图像加密算法

成亚萍1,吕 巍1,张太忠2   

  1. 1.南京信息工程大学 计算机与软件学院,南京 210044
    2.南京信息工程大学 数理学院,南京 210044
  • 收稿日期:2007-11-29 修回日期:2008-02-25 出版日期:2008-09-21 发布日期:2008-09-21
  • 通讯作者: 成亚萍

New digital image encryption algorithm protect from shearing attack

CHENG Ya-ping1,LV Wei1,ZHANG Tai-zhong2   

  1. 1.Computer and Software Institute,Nanjing University of Information Science and Technology,Nanjing 210044,China
    2.School of Mathematics and Physics,Nanjing University of Information Science and Technology,Nanjing 210044,China
  • Received:2007-11-29 Revised:2008-02-25 Online:2008-09-21 Published:2008-09-21
  • Contact: CHENG Ya-ping

摘要: 提出一种将图像的重要信息嵌入自身,再进行加密的算法。该算法将图像8×8块的重要信息嵌入到由Lorenz混沌系统决定的另一图像块中,再对嵌入自身信息后的图像采用Lorenz混沌系统进行像素加密。通过对实验结果分析,证明该算法具有较好的安全性和较强的抗剪切攻击能力。

Abstract: An encryption algorithm based on self-embedding is proposed to protect from shearing attack to improve security of the encryption algorithms. The image pixels are encrypted by Lorenz chaotic sequences after the image is divided into 8×8 blocks and each block’s important image information is embed into another block located by Lorenz system. Simulation results show that the algorithm can not only improve security,but also effectively protect from shearing attack.