Permutation-substitution image encryption scheme based on a modified chaotic map in transform domain

Ramadan, Noha; Ahmed, HossamEl-din H.; El‐Khamy, Said E.; El‐Samie, Fathi E. Abd

doi:10.1007/s11771-017-3614-6

Cited by 15 publications

(8 citation statements)

References 11 publications

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“…The logistic map, the tent map, the quadratic map, and other well-known maps are examples of well-known maps. Any chaotic map has the mathematical definition given in equation (1) [11]: In this research We employed and concentrates on a logistic Map. logistic map equation is determining by the (2) [12]:…”

Section: Chaotic Mapmentioning

confidence: 99%

Encrypting of Text Based on Chaotic Map

Mangi

Ali

Jawad

2023

JUBPAS

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Background: Due to the internet's recent rapid expansion, security has become a crucial issue when transmitting digital data via unsecure channels. This can be applied by employing dependable encryption methods. This research brought forward a text encryption system order to create safe databases. Materials and Methods: The research uses a chaotic map based on a logistic map Due to its widespread application in scientific research. Several processes are used to carry out the encryption activity. Firstly, the text is formatted in 2D matrix of numbers converted into vector. Secondly, to create a sequence for using it in the encryption process, the chaotic system is employed. Thirdly, sorting the generated vector in order to scramble the text values based on it. The final step involves encoding the scrambled text using a mathematical operation. Also, there are many steps used in the decryption process. In the first step, the same mathematical technique is used to decrypt the encrypted text after the identical chaotic sequence has been generated. In the second step, the scrambled values are descrambled to obtain the decrypted text. Results: The experimental results demonstrate that the suggested approach obtain an excellent value of entropy equal to (0.9955) and Correlation coefficient equal to (-0.0024) and Avalanche effect equal to (0.5120) as well as the proposed system examined under NIST tests and obtain a good results (>0.01) and examined for multiple other files and obtain a good results, in terms of execution time tests, the proposed system applied in a short amount of time. Conclusion: The proposed system matched the criteria for encryption techniques in terms of high sensitivity for initial values, high security, high randomizing Whatever text is to be encrypted. Also the proposed system can be applied for real time application due to its Short implementation time.

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Section: Chaotic Mapmentioning

confidence: 99%

Encrypting of Text Based on Chaotic Map

Mangi

Ali

Jawad

2023

JUBPAS

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“…El-khamy, S.E. et al [ 24 ] proposed a new chaotic image encryption algorithm depending on permutation and substitution in the Fourier domain. The authors achieved a large degree of randomization by applying a Fractional Fourier transform.…”

Section: Related Workmentioning

confidence: 99%

Non-Linear Hopped Chaos Parameters-Based Image Encryption Algorithm Using Histogram Equalization

Moussa

Naggary

Mohamed

2021

Entropy

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Multimedia wireless communications have rapidly developed over the years. Accordingly, an increasing demand for more secured media transmission is required to protect multimedia contents. Image encryption schemes have been proposed over the years, but the most secure and reliable schemes are those based on chaotic maps, due to the intrinsic features in such kinds of multimedia contents regarding the pixels’ high correlation and data handling capabilities. The novel proposed encryption algorithm introduced in this article is based on a 3D hopping chaotic map instead of fixed chaotic logistic maps. The non-linearity behavior of the proposed algorithm, in terms of both position permutation and value transformation, results in a more secured encryption algorithm due to its non-convergence, non-periodicity, and sensitivity to the applied initial conditions. Several statistical and analytical tests such as entropy, correlation, key sensitivity, key space, peak signal-to-noise ratio, noise attacks, number of pixels changing rate (NPCR), unified average change intensity randomness (UACI), and others tests were applied to measure the strength of the proposed encryption scheme. The obtained results prove that the proposed scheme is very robust against different cryptography attacks compared to similar encryption schemes.

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“…In general, the encryption algorithm based on the spatial domain is faster than the algorithm based on the image frequency domain [45].…”

Section: Computational Speed Analysismentioning

confidence: 99%

A New Image Encryption Algorithm Based on Chaos and Secure Hash SHA-256

Zhu

Wang

2018

Entropy

102

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In order to overcome the difficulty of key management in “one time pad” encryption schemes and also resist the attack of chosen plaintext, a new image encryption algorithm based on chaos and SHA-256 is proposed in this paper. The architecture of confusion and diffusion is adopted. Firstly, the surrounding of a plaintext image is surrounded by a sequence generated from the SHA-256 hash value of the plaintext to ensure that each encrypted result is different. Secondly, the image is scrambled according to the random sequence obtained by adding the disturbance term associated with the plaintext to the chaotic sequence. Third, the cyphertext (plaintext) feedback mechanism of the dynamic index in the diffusion stage is adopted, that is, the location index of the cyphertext (plaintext) used for feedback is dynamic. The above measures can ensure that the algorithm can resist chosen plaintext attacks and can overcome the difficulty of key management in “one time pad” encryption scheme. Also, experimental results such as key space analysis, key sensitivity analysis, differential analysis, histograms, information entropy, and correlation coefficients show that the image encryption algorithm is safe and reliable, and has high application potential.

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Permutation-substitution image encryption scheme based on a modified chaotic map in transform domain

Cited by 15 publications

References 11 publications

Encrypting of Text Based on Chaotic Map

Encrypting of Text Based on Chaotic Map

Non-Linear Hopped Chaos Parameters-Based Image Encryption Algorithm Using Histogram Equalization

A New Image Encryption Algorithm Based on Chaos and Secure Hash SHA-256

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