Optical color image encryption scheme with a novel DNA encoding algorithm based on a chaotic circuit

Yildirim, Melih

doi:10.1016/j.chaos.2021.111631

Cited by 54 publications

(25 citation statements)

References 70 publications

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“…To achieve an excellent diffusion effect, DNA coding is often used to diffuse the image [21,22]. Yildirim proposed a novel DNA coding scheme using eight nucleic acid bases, which has a better diffusion effect than the DNA coding scheme using four nucleic acid bases [23]. Li et al used DNA coding, DNA complementary rules and gene mutation to diffuse the image, which can achieve a satisfactory diffusion effect [24].…”

Section: Related Workmentioning

confidence: 99%

Color image encryption algorithm based on bidirectional spiral transformation and DNA coding

Wang¹,

Zhang²,

Zhao³

2023

Phys. Scr.

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The security of digital images has become increasingly important as information technology has advanced considerably. To ensure image security and improve the efficiency of image encryption, a novel color image encryption algorithm is proposed in this paper. Firstly, a novel three-dimensional chaotic system with extreme multistability is proposed and employed to generate the chaotic sequences to be used in the permutation and diffusion processes. Secondly, the proposed bidirectional spiral transformation is used to permute the R, G and B components extracted from the color plain image. Thirdly, the permuted pixel sequence is dynamically encoded into a DNA sequence. To further increase the permutation effect, the DNA sequence is permuted again using the index sequence. Finally, the dynamical DNA operations are performed to diffuse the permuted DNA sequence, and the designed look-up table method is used to quickly obtain the DNA operation results. The key space of the proposed algorithm is 10266, which is large enough to resist the brute-force attacks. The average entropy value of the cipher image of Peppers is 7.9971, which is much closer to the theoretical entropy value 8. The dynamic DNA operations process only takes up 0.032349s, which shows the advantage of the proposed look-up table method. Therefore, the proposed algorithm can be applied to the application that require high confidentiality and real-time.

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Section: Related Workmentioning

confidence: 99%

Color image encryption algorithm based on bidirectional spiral transformation and DNA coding

Wang¹,

Zhang²,

Zhao³

2023

Phys. Scr.

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“…Following that, Rössler (1976), Rabinovich and Fabrikant (1979), and Chua et al (1993b) Cao and Zhao (2021). Only a few studies on circuit implementation of the chaotic system are based on OTA Karawanich and Prommee (2022); Yildirim (2022). The advantage of OTA over OPAMP component is its high output impedance, wide band gap, and transconductance gain which can be changed with bias current.…”

Section: Introductionmentioning

confidence: 99%

“…This provides an important advantage in chaotic circuits. The chaotic circuit design with OTA presented in Karawanich and Prommee (2022); Yildirim (2022) has been designed, but there is no study on its synchronization. In this study, a simpler structure is proposed by using only OTA, capacitor, and analog multiplier.…”

Section: Introductionmentioning

confidence: 99%

A Lorenz-like Chaotic OTA-C Circuit and Memristive Synchronization

AYDIN

BEKEN

Taşkıran

2023

Chaos Theory and Applications

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In this paper, a new set of lorenz-like hyper-chaotic equation set is obtained using the anti-control procedure. The chaoticity of the system is verified by MATLAB simulations using mathematical analysis methods. A new OTA-C circuit is designed for the new equation set. In the difference term addition technique, synchronizing the OTA-C circuit with a memristor rather than a resistor is proposed. Circuit design and synchronization are performed in PSpice simulation. The fact that the transresistance of the OTA element can be easily adjusted with a bias current provides the parameters that will make the proposed dynamic circuit a chaotic oscillator. The advantage of the proposed synchronization method is that the memristor automatically reaches to the value that will provide the required weight of the differential term required for synchronization, rather than the computational methods used to determine the weight.

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“…In 1963, Lorenz proposed the first chaotic system, namely the Lorenz system [1], and since then people have started to study chaotic systems. The emergence of chaotic systems has attracted wide interest and attention in engineering sciences, computer communications and biomedical fields, specific application directions such as chaotic synchronization [2], neural networks [3] and image encryption [4,5].…”

Section: Introductionmentioning

confidence: 99%

A new fractional-order 5D memristive chaotic system with special extreme multistability and its application to image encryption

Yan,

Jiang,

Zhang

et al. 2023

Phys. Scr.

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Introducing memristor into the chaotic system can enrich the dynamic behaviors of the chaotic system. We propose a symbolic function memristor model and introduce it into a chaotic system to construct a fractional-order 5D memristor chaotic system. Through dynamic analysis of equilibrium point, Lyapunov exponents, phase diagram and bifurcation diagram, it is found that the system has abundant dynamic behaviors, for example, the change of equilibrium point type with parameters, transient chaos, offset-boosting and a special kind of extreme multistability. And with the change of parameters, the attractor state and shape will appear rich changes. Then the correctness of the system is verified by circuit simulation. The chaotic system is introduced into the process of image encryption, and an encryption system is constructed, which is composed of Zigzag scrambling, Hilbert curve scrambling, DNA encryption and GF257 diffusion algorithm. Finally, through a variety of security verification, the results show that the encryption system has good security and can resist many kinds of attacks effectively.

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Optical color image encryption scheme with a novel DNA encoding algorithm based on a chaotic circuit

Cited by 54 publications

References 70 publications

Color image encryption algorithm based on bidirectional spiral transformation and DNA coding

Color image encryption algorithm based on bidirectional spiral transformation and DNA coding

A Lorenz-like Chaotic OTA-C Circuit and Memristive Synchronization

A new fractional-order 5D memristive chaotic system with special extreme multistability and its application to image encryption

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