New image encryption algorithm of extended logistic equation

Computer Engineering and Applications ›› 2012, Vol. 48 ›› Issue (8): 218-220.

• 图形、图像、模式识别 • Previous Articles Next Articles

New image encryption algorithm of extended logistic equation

JIANG Mengxuan1, XIE Kefu2

1.College of Physics and Information Science, Hunan Normal University, Changsha 410081, China
2.Department of Computer, Hunan Normal University, Changsha 410081, China

Received:1900-01-01 Revised:1900-01-01 Online:2012-03-11 Published:2012-03-11

一种改进logistic方程的图像加密新算法

蒋梦轩1，谢可夫2

1.湖南师范大学物理与信息科学学院，长沙 410081
2.湖南师范大学计算机部，长沙 410081

Abstract

Abstract: An extended logistic equation and new image encryption algorithm is proposed. Compared with the logistic equation, the improved chaotic equation has larger key space, and the generated chaotic sequences has excellent performance such as cross correlation and sensitivity. The algorithm is designed based on cryptography theory and safety space is huge. Theoretical analyses and computer simulation show that the equation and the algorithm has more efficiency and security, it can resist violence attack, known-plaintext attack and statistical analysis effectively.

Key words: chaotic systems, chaotic sequences, image encryption

摘要： 提出了改进的logistic混沌方程和新的图像加密算法。改进的混沌方程对比logistic混沌方程具有更大的密钥空间，而且所生成的混沌序列的互相关性、敏感性等密码特性更好。新的图像加密算法是运用密码学原理设计的随机加密算法，理论上安全空间非常大。理论分析和计算机仿真实验表明该方程和该算法结合的加密机制具有更好的加密效果和安全性，能有效抵抗暴力攻击、已知明文攻击和统计分析。

关键词: 混沌系统, 混沌序列, 图像加密

JIANG Mengxuan1, XIE Kefu2. New image encryption algorithm of extended logistic equation[J]. Computer Engineering and Applications, 2012, 48(8): 218-220.

蒋梦轩1，谢可夫2. 一种改进logistic方程的图像加密新算法[J]. 计算机工程与应用, 2012, 48(8): 218-220.

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New image encryption algorithm of extended logistic equation

一种改进logistic方程的图像加密新算法

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