IWT and RSA based asymmetric image encryption algorithm

Du, Simin; Ye, Guodong

doi:10.1016/j.aej.2022.10.066

Cited by 30 publications

(11 citation statements)

References 29 publications

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“…NPCR, or Number of Pixels Changes Rate, measures the percentage of pixels with altered values for the original and encrypted image. 34,35 The higher the NPCR, the lesser the original image retained in the encrypted image. The mathematical equation for NPCR is shown in Equation ( 1) and is represented as a percentage, with 100% being no pixels with the same values.…”

Section: Differential Attack Analysismentioning

confidence: 99%

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MieWC: Medical image encryption using wavelet transform and multiple chaotic maps

Demla,

Anand

2024

Security and Privacy

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Recently, digital images have been widely used in several applications through advanced wearable devices and networks. Despite several benefits of digital images, such as easy distribution, storage, and reproduction, it is difficult to prevent the issue of identity theft, privacy leakage, and ownership conflicts. We present a wavelet‐based encryption technique, MieWC, to solve the above issues using multiple chaotic keys. This work uses multiple keys for the encryption process, which ensures high security and authenticity. Lorenz and logistic maps are used for chaotic key generation for diffusion and confusion processes. Further, the technique is tested for two different wavelet transforms, including integer wavelet transform (IWT) and discrete wavelet transform, with IWT giving better results. Hence, it is being used for further analysis. The proposed technique is easy to implement and provides high security with improved results. It has low time complexity and high key bit sensitivity. The result analysis further ensures resistance against crop attacks.

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Section: Differential Attack Analysismentioning

confidence: 99%

“…NPCR, or Number of Pixels Changes Rate, measures the percentage of pixels with altered values for the original and encrypted image 34,35 . The higher the NPCR, the lesser the original image retained in the encrypted image.…”

Section: Experimental Analysismentioning

confidence: 99%

MieWC: Medical image encryption using wavelet transform and multiple chaotic maps

Demla,

Anand

2024

Security and Privacy

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“…The utility of the RSA encryption framework extends to a wide range of domains. For example, it has essential applications in the field of image cryptography, as demonstrated by the documents [2,5,12]. Furthermore, it plays a crucial role in protecting the confidentiality of medical records, a key issue in contemporary medical informatics [27].…”

Section: Rsa Encryption Algorithmmentioning

confidence: 99%

A Feasible Solution for Image Encryption, Restoration, and Colorization Based on the Methods of Weighted Conjugate Gradient, RSA Encryption, and Deep Learning.

Yuan,

Zhang

2024

Preprint

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In contemporary society, people are increasingly aware of environmental issues. Coinciding with this development is the arrival of the era of big data, accompanied by significant advances in artificial intelligence. These technologies are increasingly used to collect, systematize and review data to facilitate informed decision-making processes. Ecological image processing stands out as a critical application in this technological field. In the rapid development of deep learning methods, challenges still exist due to the impact of training models on machine performance. In some cases, machine performance is still not ideal. This paper introduces a novel weighted conjugate gradient (WCG) algorithm based on the classic conjugate gradient method, which has better performance in image restoration tasks. Meanwhile, this paper extends the RSA encryption method to the encrypted transmission of the matrix framework to ensure data security during the transmission process. In addition, under the supervision of established machine learning vision models, this paper adopts a penalty function strategy combined with the p-Laplacian operator and manual methods to provide users with enhanced control over manual intervention in grayscale image colorization, thereby enriching Visual fidelity and interpretability of images. The numerical calculation method adopts the WCG algorithm innovatively proposed in this article. Based on the above, the framework proposed in this paper describes a quasi-automatic method for image encryption, transmission, recovery, and colorization. This framework not only ensures that users can intervene and adjust but also maximizes machine execution speed. The framework bridges the gap between fully automated systems and fully manual operating systems, trying to find a balance between convenience and accuracy. At the same time, the Matrix RSA encryption method ensures security during transmission. This framework has significant advantages in applications in professional fields that have specific requirements for accuracy, convenience, and security.

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“…Calculate 𝑑 which is the private exponent, such that 𝑒 × 𝑑 = 1 𝑚𝑜𝑑 ∅(𝑛), where 𝑚𝑜𝑑 symbolizes to the modulus operation or the reminder after division. Hence, (𝑛, 𝑒) represents the public encryption key, while (𝑛, 𝑑) represents the private decryption key [18].…”

Section: Select Two Large Prime Integer Numbers 𝑝mentioning

confidence: 99%

Performance Comparison between RSA and El-Gamal Algorithms for Speech Data Encryption and Decryption

Yousif¹

2023

DJES

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This article presents a performance comparison of two known public key cryptography techniques namely RSA (Rivest–Shamir–Adleman) and El-Gamal algorithms to encrypt/decrypt the speech signals during transferring over open networks. Specifically, this work is divided into two stages. The first stage is enciphering-deciphering the input speech file by employing the RSA method. The second stage is enciphering-deciphering the same input speech file by employing the El-Gamal method. Then, a comparative analysis is performed to test the performance of both cryptosystems using diverse experimental and statistical analyses for the ciphering and deciphering procedures like some known speech quality measures: histogram, spectrogram, correlation, differential, speed performance and noise effect analyses. The analyses outcomes reveal that the RSA and El-Gamal approaches are efficient and adequate for providing high degree of security, confidentiality and reliability. Additionally, the outcomes indicate that the RSA speech cryptosystem outperforms its counterpart the El-Gamal speech cryptosystem in most of ciphering/deciphering speech performance metrics.

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IWT and RSA based asymmetric image encryption algorithm

Cited by 30 publications

References 29 publications

MieWC: Medical image encryption using wavelet transform and multiple chaotic maps

MieWC: Medical image encryption using wavelet transform and multiple chaotic maps

A Feasible Solution for Image Encryption, Restoration, and Colorization Based on the Methods of Weighted Conjugate Gradient, RSA Encryption, and Deep Learning.

Performance Comparison between RSA and El-Gamal Algorithms for Speech Data Encryption and Decryption

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