Resim Şifreleme Amacıyla Dinamik S Kutusu Tasarımı İçin Bir Yöntem

Güvenoğlu, Erdal

doi:10.31202/ecjse.67175

Cited by 5 publications

(6 citation statements)

References 17 publications

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“…It is important for the pixel values in the encrypted image to be uniformly distributed across the image. By analyzing the histogram, we can assess whether the image encryption method is resistant to statistical attacks [45].…”

Section: Histogram Analysismentioning

confidence: 99%

Memristive chaotic system-based hybrid image encryption application with AES and RSA algorithms

Şahin¹

2023

Phys. Scr.

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The widespread use of information and communication tools today facilitates information access and highlights the significance of information and data security. In recent years, chaos-based encryption systems have emerged as a promising approach for protecting the confidentiality of transmitted images. In particular, memristor-based hyperchaotic systems have attracted significant attention because of their robustness and complexity. In this paper, we propose an image encryption model that employs a two-stage encryption method using various chaotic systems, including the logistic map, Lorenz chaotic system, and memristor-based hyperchaotic system, with AES and RSA encryption algorithms. The proposed hybrid scheme applies bit-based pixel diffusion and confusion techniques to improve the security of encrypted images. Statistical and security tests are conducted to compare the performance of the different encryption systems and algorithms and to present the measurement values obtained from the analysis. Our experimental results demonstrate the effectiveness of the proposed image encryption scheme in terms of security, speed, and reliability and provide valuable insights for the development of future chaos-based encryption systems.

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Section: Histogram Analysismentioning

confidence: 99%

Memristive chaotic system-based hybrid image encryption application with AES and RSA algorithms

Şahin¹

2023

Phys. Scr.

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“…The 𝑓𝑙𝑜𝑜𝑟 operator outputs the greatest integer less than or equal to the multiplication result. 𝑥 𝐾 denotes the value of the Kth element of the chaotic sequence obtained by (1). K is incremented in each iteration of (2) in which the values in the sequence {𝑥 𝐾 , 𝑥 𝐾+1 , 𝑥 𝐾+2 , 𝑥 𝐾+3 …} are used until the shuffling arrays are obtained.…”

Section: Sub-image Shufflingmentioning

confidence: 99%

“…While pixel-level permutation aims to change the positions of the pixels, the bit-level permutation process both changes the positions of the bits and so the values of the pixels. 𝑝𝑖𝑥𝑒𝑙 𝑏𝑖𝑛 = {𝑃 𝑥,𝑦 (1), 𝑃 𝑥,𝑦 (2), … , 𝑃 𝑥,𝑦 (8)}…”

Section: Bit-level Permutationmentioning

confidence: 99%

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An Image Encryption Method by Sub-image Shuffling, Bit-level Permutation and Diffusion using Chaotic Maps

Demirtaş¹

2021

El-Cezeri Fen Ve Mühendislik Dergisi

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Transmission of images securely through a channel can be ensured using cryptography techniques. Encrypting an image with the help of chaotic maps provides security and authentication. This paper presents an image encryption method that consists of three main steps: Sub-image shuffling, bit-level permutation, and diffusion. The sub-image shuffling step is performed using a logistic map to increase the robustness of the proposed method. In the bit-level permutation process, the highest four bits of each pixel are obtained. The bitlevel row and column transformations are applied using the sequences generated by a chaotic tent map. Finally, in the diffusion step, the values of the image's pixels are altered. Two different chaotic sequences which are obtained from the logistic map and tent map are employed. Five different parameters are selected as the secret keys for the encryption. The performance of the suggested method is tested with several analysis methods. Key space analysis shows that the proposed method can withstand brute force attacks. It is also proven that the method is highly sensitive to secret keys. Histogram analysis illustrates the fact that the encrypted image's pixels are uniformly distributed. Also, the correlation between the neighboring pixels is reduced in the encrypted image compared to the plain image. The differential analysis demonstrates that the method is sensitive to the slightest changes in the plain image even though the same secret keys are used.

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“…Veri görüntü içerisinde satır, sütün veya köşegen sıralı olarak resmin piksellerine gizlenebilmektedir [11]. Bu yöntemler Şekil 3'te görülmektedir.…”

Section: Least Significant Bit (Lsb)unclassified

Cebirsel Şifrelenmiş LSB Yöntemi

KARADURAN

Turan

2020

European Journal of Science and Technology

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Öz Teknolojinin gelişmesi ile birlikte verilerin elektronik ortamda güvenli bir biçimde transfer edilmesi önem kazanmıştır. Bu amaçla birçok yöntem önerilmiş ve kullanılmaktadır. Bu çalışmada, stenografi bilim dalının en az ağırlıklı bit şifreleme tekniği olarak bilinen LSB algoritmasının veri güvenliğini cebirsel ifadeler ile iyileştirmek, belli oranda daha fazla sıkıştırma sağlarken, resim üzerinde oluşan değişim hata oranını da çok artırmamak amaçlanmıştır. Geliştirilen algoritmada mesajın 24 bit renkli resimlere şifrelenmesi sağlanmıştır. Mesajda yer alan her karakter, şifrelenmek istenen resmin 2 pikseline kodlanır. Modelin başarımını ölçmek üzere (orijinal resim ile şifreli resmin değişim oranı) MSE ve PSNR metrikleri kullanılmış, LSB algoritması ile önerilen çalışma yaygın olarak kullanılan bazı model resimler üzerinde farklı uzunlukta mesajlar için karşılaştırılmışlardır. Elde edilen sonuçlara göre, çalışmada önerilen algoritmanın sıkıştırma oranı %33 daha iyi olmasına rağmen, yapılan sınamalarda elde edilen değerlerin ortalamasına göre beklendiği üzere MSE hata oranı %29 artmış ve PSNR %2.5 azalmıştır. Her ne kadar metrik değerleri negatif gözükse de, orijinal resimdeki bu değişimler çok ufak ve gözle algılanabilir olmaktan uzaktır. Kazanılan sıkıştırma oranı ve ayrıca verinin gizlenme güvenliği göz önünde bulundurulduğunda, güvenliğin önemli olduğu uygulamalara hitap ettiği düşünülmelidir.

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Resim Şifreleme Amacıyla Dinamik S Kutusu Tasarımı İçin Bir Yöntem

Cited by 5 publications

References 17 publications

Memristive chaotic system-based hybrid image encryption application with AES and RSA algorithms

Memristive chaotic system-based hybrid image encryption application with AES and RSA algorithms

An Image Encryption Method by Sub-image Shuffling, Bit-level Permutation and Diffusion using Chaotic Maps

Cebirsel Şifrelenmiş LSB Yöntemi

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