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基于有限整数域上的图像置乱加密算法
引用本文:余志超,张瑞红,周静,吕建强.基于有限整数域上的图像置乱加密算法[J].微计算机信息,2007,23(15):67-68.
作者姓名:余志超  张瑞红  周静  吕建强
作者单位:438000,湖北,湖北黄冈师范学院计算机系
基金项目:湖北省教育厅自然科学重点基金项目(B200627003).
摘    要:数字图像置乱技术,其主要目的是将一幅有意义的图像变成一幅杂乱无章的图像,用以增加数字图像信息隐藏算法抵抗非法攻击的能力,从而增加安全性。本文在基于有限域上的可逆变换思想,提出了一个可用于图像置乱的变换方法。该方法包含灰度变换和位置变换。同时讨论了该方法的安全性和置乱周期。从实验结果看,该方法置乱效果好,置乱周期长,易于实现。

关 键 词:信息隐藏  图像置乱  有限整数域
文章编号:1008-0570(2007)05-3-0067-02
修稿时间:2007年4月3日

Image Scrambling Encryption Algorithm Based on Limited Integer Field
YU ZHICHAO,ZHANG RUHONG,ZHOU JING,LV JIANQING.Image Scrambling Encryption Algorithm Based on Limited Integer Field[J].Control & Automation,2007,23(15):67-68.
Authors:YU ZHICHAO  ZHANG RUHONG  ZHOU JING  LV JIANQING
Affiliation:YU ZHICHAO ZHANG RUHONG ZHOU JING LV JIANQING
Abstract:The purpose of digital image scrambling technology is to put a meaningful image into a disordered one so as to enhance the resistance ability of information-hiding algorithm of digital image against illegal attacks as well as security. This paper purposes a transformation method for image scrambling based on limited integer field. It includes gray scale transformation and position transformation. At the same time, it analyzes the security and the scrambling cycle of the proposed method. Experimental results show that it has a good effect of scrambling and a long scrambling cycle; moreover, it is easy to realize.
Keywords:information hiding  image scrambling  limited integer field
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