Grayscale image encryption algorithm based on chaotic maps
李昌刚, 韩正之 · 哈尔滨工业大学学报：英文版 · 2003
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.