计算机工程与应用 ›› 2009, Vol. 45 ›› Issue (19): 114-116.DOI: 10.3778/j.issn.1002-8331.2009.19.034

• 网络、通信、安全 • 上一篇    下一篇

新型Arnold反变换算法研究

张 博,王 玲   

  1. 湖南师范大学 物理与信息科学学院,长沙 410081
  • 收稿日期:2008-04-15 修回日期:2008-07-23 出版日期:2009-07-01 发布日期:2009-07-01
  • 通讯作者: 张 博

New anti-Arnold transformation algorithm

ZHANG Bo,WANG Ling   

  1. College of Physics and Information Science,Hunan Normal University,Changsha 410081,China
  • Received:2008-04-15 Revised:2008-07-23 Online:2009-07-01 Published:2009-07-01
  • Contact: ZHANG Bo

摘要: Arnold变换因其具有周期性,在图像加密方面得到了广泛的应用。但在解密过程中,若要利用其周期性,则显得很费时,因此提出了一种新的Arnold反变换算法。该算法通过求解方程组来求得反变换。

关键词: 数字图像, 图像加密, 图像置乱, Arnold变换

Abstract: Arnold transformation is applied widely in digital image encryption because of its periodicity.But if its periodicity is used in the course of image decryption,it will waste lots of time.So this paper offers a new anti-Arnold transformation algorithm.The algorithm gets anti-Arnold transformation by solving equation groups.

Key words: digital image, image encryption, image scramble, Arnold transformation