An Image Encryption Algorithm Based on Random Hamiltonian Path

Zhang, Wei; Shu-wen, Wang; Han, Weijie; Yu, Hai; Zhu, Zhiliang

doi:10.3390/e22010073

Cited by 15 publications

(2 citation statements)

References 31 publications

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“…In the second approach for the secret data embedding, they used the four identical cover images, and then the secret data of cover images were embedded in two phases. In the first phase, the N-RMB (NRightmost Bit replacement) techniques were used, and in the second phase, the MPVD (Modified Pixel Value Differencing) technique they used in [52], 1D adaptive Bernoulli map, ideal for encryption, is suggested for correlation coefficients. The revolutionary image encryption technique was implemented focused on the recent chaotic map.…”

Section: Preliminariesmentioning

confidence: 99%

A Robust Data Hiding Reversible Technique for Improving the Security in e-Health Care System

Kanwal¹,

Feng²,

Almogren³

et al. 2023

Computer Modeling in Engineering &Amp; Sciences

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The authenticity and integrity of healthcare is the primary objective. Numerous reversible watermarking schemes have been developed to improve the primary objective but increasing the quantity of embedding data leads to covering image distortion and visual quality resulting in data security detection. A trade-off between robustness, imperceptibility, and embedded capacity is difficult to achieve with current algorithms due to limitations in their ability. Keeping this purpose insight, an improved reversibility watermarking methodology is proposed to maximize data embedding capacity and imperceptibility while maintaining data security as a primary concern. A key is generated by a random path with minimum bit flipping is selected in the 4 × 4 block to gain access to the data embedding patterns. The random path's complex structure ensures data security. Data of various sizes (8 KB, 16 KB, 32 KB) are used to analyze image imperceptibility and evaluate quality factors. The proposed reversible watermarking methodology performance is tested under standard structures PSNR, SSIM, and MSE. The results revealed that the MRI watermarked images are imperceptible, like the cover image when LSB is 3 bits plane. Our proposed reversible watermarking methodology outperforms other related techniques in terms of average PSNR (49.29). Experiment results show that the suggested reversible watermarking method improves data embedding capacity and imperceptibility compared to existing state-of-the-art approaches.

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Section: Preliminariesmentioning

confidence: 99%

A Robust Data Hiding Reversible Technique for Improving the Security in e-Health Care System

Kanwal¹,

Feng²,

Almogren³

et al. 2023

Computer Modeling in Engineering &Amp; Sciences

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“…Information entropy is an essential feature of the randomness of an input image. Entropy is the average (expected) amount of information from the data [30], [31]. For a digital image, it is hard to predict the content if its information entropy is high.…”

Section: Information Entropymentioning

confidence: 99%

Multi-round encryption for COVID-19 data using the DNA key

Al-Shargabi¹,

Al-Husainy²

2022

IJECE

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The need for a reliable and fast encryption algorithm to encrypt medical data for patients is an extremely important topic to be considered especially during pandemic times such as the pandemic COVID-19. This pandemic forced governments and healthcare institutions to monitor COVID-19 patients. All the patient's data or records are also shared among healthcare researchers to be used to help them find vaccines or cures for this pandemic. Therefore, protecting such data (images, text) or records face an everincreasing number of risks. In this paper, a novel multi-round encryption algorithm based on deoxyribonucleic acid (DNA) is proposed. The significance of the proposed algorithm comes from using a different random key to perform simple and fast encryption operations on multiple rounds to achieve a high level of confusion and diffusion effects in encrypted data. Experiments were conducted using a set of datasets of various types such as Excel sheets, images, and database tables. The experiments were conducted to test the performance and security level of the proposed encryption algorithm against well-known algorithms such as data encryption standard (DES) and advanced encryption standard (AES). The experiments show an outstanding performance regarding the encryption time, key size, information entropy, and the avalanche effects.

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