计算机工程2011，Vol.37Issue(4)：122-124,3.DOI:10.3969/j.issn.1000-3428.2011.04.043
基于细胞自动机的安全图像加密算法
Secure Image Encryption Algorithm Based on Cellular Automata
摘要
Abstract
In order to solve the problems that the cipher image encrypted by encryption algorithm based on the merit of the state attractors of Elementary Cellular Automata(ECA) can still discern part outline of the original image, and the plaintext sensitivity is poor, this paper proposes a secure image encryption algorithm. It employs the method which encrypts every bit plane with period two 2D Cellular Automata(CA), and then uses state attractors to encrypt the image, to achieve the effect that I bit change in the plaintext can be spreaded to the whole cipher image. Simulation results show that the improved algorithm is more sensitive, has larger key space, and easy to implement.关键词
图像加密/二维细胞自动机/初等细胞自动机/状态环/敏感性Key words
image encryption/ 2D Cellular Automata(CA)/ Elementary Cellular Automata(ECA)/ srate attractor/, sensitivity分类
信息技术与安全科学引用本文复制引用
熊永红,廖晓峰,周庆..基于细胞自动机的安全图像加密算法[J].计算机工程,2011,37(4):122-124,3.
