Big Data Cryptography

Mihăilescu, Marius Iulian; Nita, Stefania Loredana

doi:10.1007/978-1-4842-6367-9_16

Cited by 3 publications

(2 citation statements)

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“…Data security encompasses techniques that provide resistance against unauthorized access, disclosure, modification, tampering, and disruption of confidential information. The safeguarding of sensitive data is a global concern, and cryptography serves as the scientific field that offers appropriate solutions [1,2].…”

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confidence: 99%

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Enhancing the Robustness of Block Ciphers through a Graphical S-Box Evolution Scheme for Secure Multimedia Applications

Razaq

Ahsan

Alolaiyan

et al. 2023

Preprint

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Block ciphers, which serve as primary components of network security systems, play a crucial role in securely exchanging and communicating confidential information. Substitution boxes (S-boxes) are the most significant components of contemporary block ciphers. Inherently, the security strength of such cryptosystems relies on the quality of the S-box employed. The cryptographically strong S-boxes provide robustness and assurance of the security competency to block ciphers. To generate the strong S-boxes, a number of chaos-based methods have been investigated in the past decade. However, chaos-based methods are random approaches which are computationally intensive and don’t guarantee the generation of strong S-boxes. To meet the challenges of strong and fast S-box generation, a novel coset graphs based algebraic method is proposed to evolve robust and efficient S-box. Firstly, an initial S-box of decent cryptographic strength is generated by using the vertices of coset graphs for two Galois fields and a bijective function. After that, the initial S-box's robustness is improved by rearranging its columns in a particular manner, which yields the strong proposed S-box. The effectiveness of the proposed method is validated by comparing various attributes of our S-box against some recently investigated S-boxes. Additionally, the generated S-box is applied for image encryption and analyzed using the MLC criterions. The results show the suitability of the proposed S-box for secure multimedia applications.

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confidence: 99%

“…In order to attain high nonlinearity in the construction of S-boxes, a new strategy was presented in [12]. This method combined finite graphs for (2,3,8) with a permutation group of high order. The stochastic fractal search strategy was first introduced as a basis for a robust S-box in [13].…”

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confidence: 99%