Image encryption with an improved cryptosystem based on a matrix approach

Ramírez-Torres, M. T.; Murguı́a, J. S.; Carlos, M. Mejía

doi:10.1142/s0129183114500545

Cited by 18 publications

(12 citation statements)

References 21 publications

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“…In Ref. [8] a preprocessing function was created to exchange the values of the plaintext, based on the pseudo-random number generator, making a modification in its feedback, see Fig. 3.…”

Section: Cellular Automatamentioning

confidence: 99%

Image Encryption System Based on Cellular Automata and S-Box

Contreras¹,

Ramírez²,

Aboytes³

2019

RCS

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This investigation presents an image encryption system and its security analysis, it is based on cellular automata and a substitution box. The joint of these two techniques, allow to encrypt digital images with a high adjacent redundancy and pass different statistical and differential tests and cryptanalytic attacks. The synchronization phenomenon of cellular automata, is sensitive to initial conditions, therefore has been used in Pseudo Random Number Generators (PRNG) and cryptosystems. In this system, the synchronization phenomenon is used to change the coefficients of the pixels, but the process is not equal for each bit, thus the s-box is used to make the system robust and for compliance with the bit independence criterion among others.

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“…In Ref. [8] a preprocessing function was created to exchange the values of the plaintext, based on the pseudo-random number generator, making a modification in its feedback, see Fig. 3.…”

Section: Cellular Automatamentioning

confidence: 99%

Image Encryption System Based on Cellular Automata and S-Box

Contreras¹,

Ramírez²,

Aboytes³

2019

RCS

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“…La regla local 90 es clasificada como de clase III [6], lo que quiere decir que es de patrón caótico, por lo que ha sido utilizada para crear generadores de números pseudoaleatorios y criptosistemas [5]. Es una de las reglas de los autómatas celulares elementales, para su cálculo se considera una vecindad de radio uno y dos estados {0,1}, puede ser descrita con la siguiente expresión:…”

Section: Materiales Y Métodos 21 Autómatas Celularesunclassified

“…En la Ref. [5] este generador se modificó para diseñar una función de procesamiento, capaz de intercambiar los coeficientes de pixeles idénticos, por valores diferentes en función del tiempo. Es totalmente reversible gracias a la regla local 90 y a las retroalimentaciones que utiliza.…”

Section: Generador De Números Pseudoaleatorios Y Función De Procesamiunclassified

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Algoritmo esteganográfico basado en autómatas celulares y en la sustitución de los bits menos significativos

López¹,

D'Ávila²,

Zapata³

et al. 2019

RCS

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Resumen. En esta investigación se presenta un nuevo algoritmo de esteganografía para imágenes, utilizando la sustitución de los bits menos significativo y la regla local 90 de autómatas celulares. Este algoritmo es capaz de cifrar y ocultar los pixeles de la imagen en un proceso combinado. El factor PSNR indica que no existe una distorsión severa en la imagen esteganográfica, lo que en esta área se interpreta como a menor distorsión de la imagen esteganográfica, mayor es la probabilidad de pasar desapercibida y que no sea analizada. Sin embargo, en caso de que la imagen oculta sea extraída, ésta se encuentra protegida por una clave secreta. Este algoritmo transforma la imagen secreta a una imagen cifrada con distribución uniforme y sin correlación. Este algoritmo esteganográfico puede ser una nueva opción para ocultar y proteger imágenes relacionando ambos procesos.

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“…The encryption system considered in this implementation is based on the synchronization of the cellular automaton rule 90 [9]. This cryptosystem is named ESCA (for short) and it has been validated and implemented for image encryption in [6,7]. The ESCA system can be considered secure for images encryption but latency time is too high to incorporate it in real-time applications.…”

Section: Introductionmentioning

confidence: 99%

A Secure Compression Scheme for Real-time Applications Using 2D-WT and Cellular Automata

Ramírez-Torres¹,

Murguı́a²,

Carlos³

et al. 2015

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In this work is presented a numerical implementation of a system that combines a compression scheme with an improved encryption procedure, which is applied to digital images. For the compression stage is considered the two-dimensional Haar wavelet transform, where an energy criterion is contemplated. On the other hand, the encryption scheme regarded is based on the synchronization of the cellular automaton rule 90, this system presents a good performance to encrypt images and it is resistant to cryptanalysis attacks such as the Chosen/Known-plaintext attack. The numerical conjunction of these procedures could be an appealing option for real-time applications such as video communications, video-surveillance among others.

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Image encryption with an improved cryptosystem based on a matrix approach

Cited by 18 publications

References 21 publications

Image Encryption System Based on Cellular Automata and S-Box

Image Encryption System Based on Cellular Automata and S-Box

Algoritmo esteganográfico basado en autómatas celulares y en la sustitución de los bits menos significativos

A Secure Compression Scheme for Real-time Applications Using 2D-WT and Cellular Automata

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