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An efficient image encryption scheme using lookup table-based confusion and diffusion
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An efficient image encryption scheme using lookup table-based confusion and diffusion
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Journal Article
An efficient image encryption scheme using lookup table-based confusion and diffusion
2015
Overview
This paper presents a solution to satisfy the increasing requirement of real-time secure image transmission over public networks. The main advantage of the proposed cryptosystem is high efficiency. The confusion and diffusion operations are both performed based on a lookup table. Therefore, the time-consuming floating point arithmetic in chaotic map iteration and quantization procedures of traditional chaos-based image cipher can be avoided. Besides, this cryptosystem possesses satisfactory resistance to noise perturbation and loss of cipher data, which are inevitable and unpredictable in real-world channels. The channel disturbance and the deliberate damage from the opponents are both tolerated. The recovered image from the damaged cipher data has satisfactory visual perception. Simulations prove the advantages of the proposed scheme, which render it a good candidate for real-time secure image applications.
Publisher
Springer Netherlands,Springer Nature B.V
Subject
/ Control
