Novel image encryption algorithm based on improved logistic map
- Author(s): Renzhi Li 1 ; Qian Liu 1 ; Lingfeng Liu 1
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View affiliations
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Affiliations:
1:
School of Software, Nanchang University , Nanchang 330029 , People's Republic of China
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Affiliations:
1:
School of Software, Nanchang University , Nanchang 330029 , People's Republic of China
- Source:
Volume 13, Issue 1,
10
January
2019,
p.
125 – 134
DOI: 10.1049/iet-ipr.2018.5900 , Print ISSN 1751-9659, Online ISSN 1751-9667
Chaotic mapping has been widely used in image encryption given the unpredictability, ergodicity, and sensitivity of parameters and initial values and the high correspondence with cryptography. The logistic map has the disadvantages of uneven distribution, low security, and small parameter space. In order to overcome these disadvantages, in this article, a new chaotic map based on a real-time variable logistic map with a randomly selected decimal is proposed. Furthermore, this chaotic mapping is applied to image encryption. Several simulation experiments show that the new encryption algorithm can obtain a safely encrypted image at a minimal time complexity.
Inspec keywords: computational complexity; image processing; chaos; cryptography
Other keywords: randomly selected decimal; improved real-time variable logistic map; cryptography; time complexity; image encryption algorithm; chaotic mapping
Subjects: Optical, image and video signal processing; Computer vision and image processing techniques; Cryptography; Computational complexity; Data security
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