2022
DOI: 10.3390/e24091247
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An Image Encryption Algorithm Based on Complex Network Scrambling and Multi-Directional Diffusion

Abstract: Various security threats are encountered when keys are transmitted in public channels. In this paper, we propose an image encryption algorithm based on complex network scrambling and multi-directional diffusion. Combining the idea of public key cryptography, the RSA algorithm is used to encrypt the key related to plaintext. The algorithm consists of three stages: key generation stage, complex network scrambling stage, and multi-directional diffusion stage. Firstly, during the key generation phase, SHA-512 and … Show more

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Cited by 4 publications
(2 citation statements)
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“…When the image pixels range from 0 to 255, the ideal value of information entropy is 8. The specific calculation formula is shown in equation (13).…”
Section: Information Entropy Analysismentioning
confidence: 99%
See 1 more Smart Citation
“…When the image pixels range from 0 to 255, the ideal value of information entropy is 8. The specific calculation formula is shown in equation (13).…”
Section: Information Entropy Analysismentioning
confidence: 99%
“…However, the traditional scrambling and diffusion structure is simple and easy to crack. And these two algorithms are processed separately, and the amount of data that the system needs to process increases, which limits the efficiency of image encryption [12,13]. Chen et al [14] successfully broke an image encryption algorithm using two-dimensional sine map and permutation-diffusion, indicating that its security is not high.…”
Section: Introductionmentioning
confidence: 99%