A novel systematic byte substitution method to design strong bijective substitution box (S-box) using piece-wise-linear chaotic map [PDF]
PeerJ Computer Science, 2022 Cryptography deals with designing practical mathematical algorithms having the two primitive elements of confusion and diffusion. The security of encrypted data is highly dependent on these two primitive elements and a key.
Asim Ali +3 more
doaj +3 more sources
Highly dispersive substitution box (S‐box) design using chaos [PDF]
ETRI Journal, 2020 Highly dispersive S‐boxes are desirable in cryptosystems as nonlinear confusion sub‐layers for resisting modern attacks. For a near optimal cryptosystem resistant to modern cryptanalysis, a highly nonlinear and low differential probability (DP) value is ...
Zaid Bin Faheem +4 more
doaj +2 more sources
Multilevel information fusion for cryptographic substitution box construction based on inevitable random noise in medical imaging [PDF]
Scientific Reports, 2021 Block cipher has been a standout amongst the most reliable option by which data security is accomplished. Block cipher strength against various attacks relies on substitution boxes.
Muhammad Fahad Khan +3 more
doaj +2 more sources
A method for generation of substitution box based on random selection
Egyptian Informatics Journal, 2022 Two basic requirements must be met to encrypt data. These requirements are confusion and diffusion properties. In particular, block cipher algorithms are based on a cryptographic component known as substitution-box to provide the need for confusion ...
Fırat Artuğer, Fatih Özkaynak
doaj +3 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 +3 more
doaj +2 more sources
Nonlinearity Improvement for Ascon Substitution Box [PDF]
International Journal of TelecommunicationsThe 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
doaj +2 more sources
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 +2 more
doaj +3 more sources
A Novel Cryptographic Substitution Box Design Using Gaussian Distribution
IEEE Access, 2019 In this paper, a novel method is being proposed to construct a substitution box or Boolean function for block ciphers using Gaussian distribution and linear fractional transform.
Muhammad Fahad Khan +2 more
doaj +3 more sources
A design of multiple color image encryption scheme based on finite algebraic structures [PDF]
Scientific ReportsThis article introduces an innovative method for constructing substitution and permutation boxes and their application in image encryption. In encryption, the essential component that creates confusion is the substitution box(S-box).
Tanveer Qayyum +3 more
doaj +2 more sources
A secure key dependent dynamic substitution method for symmetric cryptosystems [PDF]
PeerJ Computer Science, 2021 The biggest challenge for symmetric cryptosystems is to replace their static substitution with dynamic substitution, because static substitution S-boxes make the symmetric block ciphers more vulnerable to attacks.
Aisha Ejaz +4 more
doaj +2 more sources