Cryptanalysis and improvement of medical image encryption using high-speed scrambling and pixel adaptive diffusion

Chen, Yu‐Cheng; Tang, Chunming; Ye, Ruisong

doi:10.1016/j.sigpro.2019.107286

Cited by 85 publications

(41 citation statements)

References 41 publications

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“…Information entropy is another criterion for evaluating the performance of a cryptographic method [55,56,57]. For 8-bit gray images, the information entropy value is in the range of 0 and 8, and the optimal value for this parameter is 8.…”

Section: Information Entropymentioning

confidence: 99%

A novel multi-image cryptosystem based on weighted plain images and using combined chaotic maps

et al. 2021

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This paper introduces a new multi-image cryptosystem based on modified Henon map and nonlinear combination of chaotic seed maps. Based on the degree of correlation between the adjacent pixels of the plain image, a unique weight is assigned to the plain image. First, the coordinates of plain images are disrupted by modified Henon map as confusion phase. In the first step of diffusion phase, the pixels content of images are changed separately by XOR operation between confused images and matrices with suitable nonlinear combination of seed maps sequences. These combination of seed maps are selected depending on the weight of plain images as well as bifurcation properties of mentioned chaotic maps. After concatenating the matrices obtained from the first step of diffusion phase, the bitwise XOR operation is applied between newly developed matrix and the other produced matrix from the chaotic sequences of the Logistic-Tent-Sine hybrid system, as second step of diffusion phase. The encrypted image is obtained after applying shift and exchange operations. The results of the implementation using graphs and histograms show that the proposed scheme, compared to some existing methods, can effectively resist common attacks and can be used as a secure method for encrypting digital images.

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Section: Information Entropymentioning

confidence: 99%

A novel multi-image cryptosystem based on weighted plain images and using combined chaotic maps

et al. 2021

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“…Their simulation results showed that their encryption speed can exceed traditional encryption methods such as AES. However, [2] pointed out a potential vulnerability in MIE-BX to an attack against PRNG known as the reset attack. In this attack the adversary resets the PRNG state causing it to generate the same sequence of numbers every time.…”

Section: Medical Image Encryption Schemesmentioning

confidence: 99%

“…In this attack the adversary resets the PRNG state causing it to generate the same sequence of numbers every time. The authors of [2] used this vulnerability to launch a chosen-plaintext attack against MIE. To resolve this issue, they introduced a nonlinear operation on shuffled images.…”

Section: Medical Image Encryption Schemesmentioning

confidence: 99%

“…Second, the nonce initialization generates a different chaotic sequence for each encryption attempt. Third, AES encryption of nonce initialization enables resistance to the reset attack against the PRNG [2]. Fourth, the last S-box substitution adds another line of defense to the chaotic map.…”

Section: ) Resistance To Chosen-plaintext Attacksmentioning

confidence: 99%

“…Therefore, medical images require more efficient encryption algorithms capable of handling high data transmission rates. The performance of recent medical image encryption schemes, such as [1][2][3][4][5][6][7][8] and generic image encryption schemes such as [9,10] fall short of achieving realtime encryption speed.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Framework for Efficient Medical Image Encryption Using Dynamic S-Boxes and Chaotic Maps

et al. 2020

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Protecting patient privacy and medical records is a legal requirement. Traditional encryption methods fall short of handling the large volume of medical image data and their peculiar statistical properties. In this paper, we propose a generic medical image encryption framework based on a novel arrangement of two very efficient constructs, dynamic substitution boxes (S-boxes) and chaotic maps. The arrangement of S-box substitution before and after chaotic substitution is shown to successfully resist chosen plaintext and chosen ciphertext attacks. Special precautions are taken to fend off the reset attack against pseudorandom number generators. We show how to implement the generic framework using any key-dependent dynamic Sbox construction method and any chaotic map. Experimental results show that the proposed framework successfully passes all security tests regardless of the chaotic map used for implementation. Based on speed analysis, we recommend the use of the classical Baker map or Henon map to achieve encryption throughput approaching 90 MB/s on a modern PC without hardware acceleration. INDEX TERMS bijective substitution box, chaotic map, image encryption.

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PixJS: A novel chaos‐based approach for image encryption

Tuli

Soneji

Vahora

et al. 2022

Concurrency and Computation

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Image encryption has variety of applications in the healthcare, military, e-commerce, and education sectors. Along with processing images for various applications, secure storage of such images is essential. For many years, encryption of images is a fruitful method for the secure transmission of multimedia data that carries sensitive information across multiple mediums. There is umpteen number of image encryption methods available which exhibit improved performance either in time, space, or susceptance to attacks in a controlled environment. Few image encryption algorithms have higher computational complexity, whereas some are immune to a handful of attacks (either differential, statistical, brute force, or known-plaintext and chosen-plain text attacks). We have developed a novel chaos-based image encryption algorithm-PixJS for 8-bit grayscale images based on linear feedback shift register, logistic map, and jumbling process. The algorithm was initially proposed for the text-based passwords called as jumbling-salting algorithm in 2014. We conducted a comprehensive analysis of the proposed algorithm on sets of symmetric and asymmetric images (10 samples each) and addressed four research questions primarily based on speed and security parameters. After conducting thorough experimentation, we found that our algorithm outperformed existing algorithms in security and has proven to be resistant to statistical, differential, brute-force, known plain text, and chosen plain text attacks.

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Cryptanalysis and improvement of medical image encryption using high-speed scrambling and pixel adaptive diffusion

Cited by 85 publications

References 41 publications

A novel multi-image cryptosystem based on weighted plain images and using combined chaotic maps

A novel multi-image cryptosystem based on weighted plain images and using combined chaotic maps

Framework for Efficient Medical Image Encryption Using Dynamic S-Boxes and Chaotic Maps

PixJS: A novel chaos‐based approach for image encryption

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