Grayscale image encryption algorithm based on chaotic maps  

作　　者：李昌刚 韩正之 

机构地区：[1]Dept. of Automation, Shanghai Jiaotong University, Shanghai 200030,China [2]Dept. of Automation, Shanghai Jiaotong University, Shanghai 200030,China new image encryption/decryption algorithm has been designed using discrete chaotic systems as a SP (Substitution and Permutation) network architecture often used in cryptosystems. It is composed of two main modules:substitution module and permutation module. Both analyses and numerical results imply that the algorithm has the desirable security and efficiency.

出　　处：《Journal of Harbin Institute of Technology(New Series)》2003年第3期329-331,共3页哈尔滨工业大学学报（英文版）

基　　金：Sponsored by the National Natural Science Foundation of China(Grant No. 69874025)

摘　　要：A new image encryption/decryption algorithm has been designed using discrete chaotic systems as aSP (Substitution and Permutation) network architecture often used in cryptosystems. It is composed of two mainmodules: substitution module and permutation module. Both analyses and numerical results imply that the algo-rithm has the desirable security and efficiency.A new image encryption/decryption algorithm has been designed using discrete chaotic systems as a SP (Substitution and Permutation) network architecture often used in cryptosystems. It is composed of two main modules:substitution module and permutation module. Both analyses and numerical results imply that the algorithm has the desirable security and efficiency.

关 键 词：discrete chaotic system image encryption SP network architecture 

分 类 号：TN919.81[电子电信—通信与信息系统]