Results 211 to 220 of about 129,599 (254)

Preferences of healthcare providers regarding future follow-up care for breast, prostate, and colorectal cancer: A discrete choice experiment. [PDF]

Support Care Cancer
Liemburg GB, Stegmann ME, Burgers JS, Berendsen AJ, Berger MY, Schröder CP, Korevaar JC, Brandenbarg D.   +7 more
europepmc   +1 more source

First-principles investigation of transition-metal doped Al₂B₂ and AlB₄ monolayers for spintronics. [PDF]

RSC Adv
Wang J, Luo X.
europepmc   +1 more source

A DFT analysis of structural and electronic modulation of Cs₂AgBiX₆ (X = Cl, Br) <i>via</i> A-site NH₄ ⁺ substitution for photovoltaic applications. [PDF]

RSC Adv
Khan S, Saeed MU, Rehman MZU, Pervaiz S, Asghar B, Reshak AH, Elansary HO, Moussa IM, Mumtaz S, Saeed Y.   +9 more
europepmc   +1 more source

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A substitution box generator, its analysis, and applications in image encryption

Signal Processing, 2021
Abstract A substitution box (S-box) is the only non-linear component in many cryptosystems. Recently, S-box generators have been used intensively in many modern cryptosystems to obtain ciphertext that is secure against modern cryptanalysis. The purpose of these generators is to (i) efficiently generate (ii) dynamic S-boxes (iii) with optimal ...
Naveed Ahmed Azam, Umar Hayat
exaly   +2 more sources

A scheme based on algebraic and chaotic structures for the construction of substitution box

Multimedia Tools and Applications, 2019
The use of nonlinear (chaotic) transformations in cryptography to generate confusion in the course of encryption procedure is the recent trend. In this article, a novel chaotic system is presented based on the existing chaotic maps. A proficient cryptosystem technique is proposed for constructing substitution box using this novel 1D chaotic structure ...
Atta Ullah, Adnan Javeed, Tariq Shāh
exaly   +2 more sources

An efficient construction of key-dependent substitution box based on chaotic sine map

International Journal of Distributed Sensor Networks, 2019
A substitution box is a core component of the popular symmetric-key algorithms. However, the major problem of the conventional substitution boxes is the statistic behavior, which is employed as a fixed-size lookup table.
Muhammad Usama, Imran Memon
exaly   +2 more sources

Nonlinearity Improvement for Ascon Substitution Box [PDF]

International Journal of Telecommunications
The technological scene is developing towards employing tiny-sized devices. For a variety of functions that encompass sensing, identification, and decision-making. These devices are re-stricted in their resources to be secure.
Mohamed Bakr, Noha Korany
openaire   +2 more sources

Stochastic Fractal Search Algorithm Improved with Opposition-Based Learning for Solving the Substitution Box Design Problem

Mathematics, 2022
The main component of a cryptographic system that allows us to ensure its strength against attacks, is the substitution box. The strength of this component can be validated by various metrics, one of them being the nonlinearity.
FRANCISCO Gonzalez, Ricardo Soto, Broderick Crawford   +2 more
exaly   +3 more sources

Designing chaos based strong substitution box

2015 Eighth International Conference on Contemporary Computing (IC3), 2015
Substitution boxes are the indispensable part of block ciphering techniques such as AES, DES, IDEA, etc. It is important to design effective S-boxes in an efficient way. In this paper, a method to generate effective S-boxes is proposed. A new technique is suggested to produce the input S-boxes candidates.
Musheer Ahmad 0002, Faiyaz Ahmad, Zeba Nasim, Zohra Bano, Shadab Zafar   +4 more
openaire   +1 more source