Journal
APPLIED SOFT COMPUTING
Volume 26, Issue -, Pages 10-20Publisher
ELSEVIER
DOI: 10.1016/j.asoc.2014.09.039
Keywords
Non adjacent; Coupled map lattices; Image encryption; Bit level permutation
Categories
Funding
- National Natural Science Foundation of China [61370145, 61173183, 60973152]
- Doctoral Program Foundation of Institute of Higher Education of China [20070141014]
- Program for Liaoning Excellent Talents in University [LR2012003]
- National Natural Science Foundation of Liaoning province [20082165]
- Fundamental Research Funds for the Central University [DUT12JB06]
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We propose a new image encryption algorithm which is based on the spatiotemporal non-adjacent coupled map lattices. The system of non-adjacent coupled map lattices has more outstanding cryptography features in dynamics than the logistic map or coupled map lattices does. In the proposed image encryption, we employ a bit-level pixel permutation strategy which enables bit planes of pixels permute mutually without any extra storage space. Simulations have been carried out and the results demonstrate the superior security and high efficiency of the proposed algorithm. (C) 2014 Elsevier B.V. All rights reserved.
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