Title
A Chaos Based Image Encryption Scheme Using Digit-Level Permutation and Block Diffusion.
Abstract
Image encryption can be classified into pixel-level and bit-level according to the smallest processing element in the permutation and diffusion. Most pixel-level permutations only change the pixel positions, so the histograms of the permuted image and the original image are identical. The bit-level permutation can change the histogram of the image, but it is comparatively time-consuming due to bit-level computing. In this paper, we propose a new digit-level permutation. The pixel matrix of an image is decomposed into three digital matrices, and then these digital matrices are shuffled by the Henon map. This digit-level permutation combines the merits of pixel-level permutation with that of bit-level permutation. Besides, we also design a high-speed diffusion operation which exactly solves the problem that CBC-like diffusion has low efficiency. Simulations have been carried out and analyzed in detail, proving the superior security and high efficiency of our image cryptosystem.
Year
DOI
Venue
2018
10.1109/ACCESS.2018.2879565
IEEE ACCESS
Keywords
Field
DocType
Image encryption,chaos,digit-level,block diffusion
Histogram,Hénon map,Computer science,Matrix (mathematics),Permutation,Matrix decomposition,Algorithm,Cryptosystem,Encryption,Pixel,Distributed computing
Journal
Volume
ISSN
Citations 
6
2169-3536
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Ping Ping1344.57
Jinyang Fan200.34
Yingchi Mao366.29
Feng Xu444869.80
Jerry Gao521.76