Journal
OPTICS AND LASERS IN ENGINEERING
Volume 86, Issue -, Pages 248-254Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.optlaseng.2016.06.008
Keywords
High-dimensional chaos system; Enhanced method; Sub-image encryption; Parallel algorithm
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Funding
- National Natural Science Foundation of China [61370145, 61173183, 60973152]
- Doctoral Program Foundation of Institution 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 Universities [DUT12JB06]
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Recently a parallel sub-image encryption method is proposed by Mirzaei et al., which is based on a total shuffling and parallel encryption algorithm. In this paper, we firstly show that the method can be attacked by chosen plaintext attack and then propose an enhanced sub-image algorithm, which can completely resist the chosen plaintext attack. Moreover, our improved algorithm can reduce the encryption time dramatically. The experimental results also prove that the improved encryption algorithm is secure enough. So the improved method can be used in image transmission system. (C) 2016 Elsevier Ltd. All rights reserved.
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