An Image Blocking Encryption Arithmetic Based on Chaotic Sequences
Wan Chun · Computer Technology and Development · 2007
To improve the effect and the speed of image encryption,a new image encryption algorithm is presented.First,divide the original image into small blocks with suitable size,and a initial value and a parameter as passwords to generate a chaos sequences,and the blocks are scrambled with the ergodic matrix of the chaos sequences.Then every block is scrambled with a new chaos sequences generated from the other pair of initial value and parameter.The proposed algorithm is better than Arnold or magic square algorithms in effect or speed;it is a very effective and useful image encryption algorithm.