北京科技大学学报2012，Vol.34Issue(4)：464-470,7.
基于交替迭代混沌系统的图像加密算法
Digital image encryption algorithm based on an alternating iterative chaotic system
摘要
Abstract
A block image encryption algorithm with a 256 bit key was designed based on a logistic map and a spatiotemporal chaotic system.The algorithm encrypts a block of original image into a block of cipher image with the same length of 256 bit.An auxiliary key brought in and iterations designed in the algorithm are sensitive to the original image and secret keys.An alternating iterative chaotic system and an Arnold map disturb pixel values and shuffle the positions of pixels.The results of computer simulation and cryptanalysis show that the algorithm is characteristic of excellent sensitivity to the original image and keys,large secret key space and high expansibility.The algorithm also has excellent effective encryption and strong anti-attacking performance.It is indicated that the algorithm is suitable for security communication.关键词
图像传输系统/图像编码/加密/混沌系统/耦合映像格子Key words
image communication systems/image coding/encryption/chaotic systems/coupled map lattices分类
信息技术与安全科学引用本文复制引用
徐刚,张亚东,张新祥,张啸剑..基于交替迭代混沌系统的图像加密算法[J].北京科技大学学报,2012,34(4):464-470,7.基金项目
国家自然科学基金资助项目 （）
