Results 31 to 40 of about 721 (175)

Distribution of the best nonzero differential and linear approximations of s-box functions

open access: yesJournal of Telecommunications and Information Technology, 2006
In the paper the differential and the linear approximations of two classes of s-box functions are considered. The classes are the permutations and arbitrary functions with n binary inputs and m binary outputs, where 1≤n=m≤10.
Krzysztof Chmiel
doaj   +1 more source

A Substitution Box for Lightweight Ciphers to Secure Internet of Things

open access: yesJournal of King Saud University: Computer and Information Sciences, 2023
The Internet of Things is a resource-constrained device that demands lightweight cryptographic solutions to achieve high performance and optimal security.
V. Panchami, Mahima Mary Mathews
doaj   +1 more source

SKE2SG: A Secure Key Establishment Scheme for Smart Grid Cyber‐Physical Systems Based on Elliptic Curve Cryptography

open access: yesIET Cyber-Physical Systems: Theory &Applications, Volume 11, Issue 1, January/December 2026.
Recent proposals by Mahmood et al., Braeken et al., and Chaudhry et al. aimed at establishing secure communication in AMI, asserting their methods fulfil the requisite security criteria. This paper, however, reveals that each of these proposals exhibits security vulnerabilities and lacks sufficient features for deployment.
Ahmad Rahdari, Bahareh Akhbari
wiley   +1 more source

Multidimensional linear cryptanalysis with key difference invariant bias for block ciphers

open access: yesCybersecurity, 2021
For block ciphers, Bogdanov et al. found that there are some linear approximations satisfying that their biases are deterministically invariant under key difference. This property is called key difference invariant bias.
Wenqin Cao, Wentao Zhang
doaj   +1 more source

Hyperchaos‐Driven 3D RGB Image Scrambling and Encryption for Multi‐Image Security

open access: yesIET Image Processing, Volume 20, Issue 1, January/December 2026.
The proposed encryption scheme scrambles N colour images by stacking them into a three‐dimensional red, green, blue image, generating a secure 256‐bit key using SHA‐256 and a user‐provided salt, and applying a five‐dimensional multi‐wing hyperchaotic system to produce random key streams.
Muhammad Hanif   +6 more
wiley   +1 more source

Higher-Order Differential-Linear Cryptanalysis of ChaCha Stream Cipher

open access: yesIEEE Access
This paper studies the advanced methodologies of differential cryptanalysis with a particular emphasis on higher-order differentials and higher-order differential-linear cryptanalysis, along with their application to the ChaCha stream cipher.
Nasratullah Ghafoori, Atsuko Miyaji
doaj   +1 more source

Conditional Linear Cryptanalysis – Cryptanalysis of DES with Less Than 242 Complexity

open access: yesIACR Transactions on Symmetric Cryptology, 2018
In this paper we introduce a new extension of linear cryptanalysis that may reduce the complexity of attacks by conditioning linear approximations on other linear approximations. We show that the bias of some linear approximations may increase under such
Eli Biham, Stav Perle
doaj   +1 more source

A Novel Hybrid Image Encryption Scheme Using Henon Map for Secure Image Communication

open access: yesIET Information Security, Volume 2026, Issue 1, 2026.
The combination of chaos theory and cryptographic methodologies constitutes a pivotal aspect of the information security. Owing to certain attributes of images, like their large data capacity and significant redundancy, image encryption needs specialized techniques instead of conventional text encryption.
Saba Inam   +6 more
wiley   +1 more source

Novel Technique in Linear Cryptanalysis [PDF]

open access: yesETRI Journal, 2015
In this paper, we focus on a novel technique called the cube–linear attack, which is formed by combining cube attacks with linear attacks. It is designed to recover the secret information in a probabilistic polynomial and can reduce the data complexity required for a successful attack in specific circumstances.
Wen-Long Sun, Jie Guan
openaire   +1 more source

Enhancing E‐Commerce Security Based on Involution Function Using Twin Key AES Cipher

open access: yesIET Information Security, Volume 2026, Issue 1, 2026.
In the realm of surging e‐commerce data and increasing digital transactions, ensuring end‐to‐end security is paramount to protect sensitive information and maintain user trust. The Advanced Encryption Standard (AES), a cornerstone of network security, relies on symmetric key encryption for secure communication.
Biresh Kumar   +11 more
wiley   +1 more source

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