计算机工程与应用2009，Vol.45Issue(21)：82-84,3.DOI:10.3778/j.issn.1002-8331.2009.21.023
一种时空混沌的图像密码
Spatiotemporal chaotic image cryptography
摘要
Abstract
To solve the drawbacks of some chaotic image encryption schemes,a new image encryption based on spatiotemporal chaos and Arnold mapping is presented.The feedback mechanism is introduced into the pixels' encryption procedure;As a result, the generation of keystream is related with the secret key and plaintext;therefore the encryption scheme can resist the chosen plaintext attack effectively.In addition,the combination of permutation and diffusion(pixel-value encryption) for several rounds em-bodies the advantage of product cipher,which makes the equivalent secret key attack fail.At last,analysis and experiments prove the validity of the scheme.关键词
混沌/Arnold映射/耦合映射格(CML)/图像加密/置乱Key words
chaos/Arnod mapping/Coupled Map Lattice(CML)/image emcryption/permutation分类
信息技术与安全科学引用本文复制引用
崔雪冰,邵国金,李国徽..一种时空混沌的图像密码[J].计算机工程与应用,2009,45(21):82-84,3.基金项目
国家自然科学基金(the National Natural Science Foundation of China under Grant No.60873030). （the National Natural Science Foundation of China under Grant No.60873030）
