Results 71 to 80 of about 13,259 (191)

Regular subgroups with large intersection

, 2018
In this paper we study the relationships between the elementary abelian regular subgroups and the Sylow $2$-subgroups of their normalisers in the symmetric group $\mathrm{Sym}(\mathbb{F}_2^n)$, in view of the interest that they have recently raised for ...
Aragona, Riccardo, Civino, Roberto, Gavioli, Norberto, Scoppola, Carlo Maria   +3 more
core   +1 more source

Polynomial Representations of Weak Inverse Property Quasigroups and Their Role in Cryptographic Primitives

Journal of Mathematics, Volume 2026, Issue 1, 2026.
A connection between cryptography and polynomial functions is extremely significant. Mathematical performance of polynomials helps to enhance the cryptographic primitives, which are trustworthy as well as straightforward representation tools, in everyday use. In this research, explicit topological sequences Qf which correspond to degree‐based, distance‐
Mohammad Mazyad Hazzazi, Muhammad Nadeem, Muhammad Kamran, Nwazish Ali, Abdu Qaid Alameri, Bin Pang   +5 more
wiley   +1 more source

Separable Statistics and Multidimensional Linear Cryptanalysis

IACR Transactions on Symmetric Cryptology, 2018
Multidimensional linear cryptanalysis of block ciphers is improved in this work by introducing a number of new ideas. Firstly, formulae is given to compute approximate multidimensional distributions of the encryption algorithm internal bits. Conventional
Stian Fauskanger, Igor Semaev
doaj   +1 more source

Cryptanalyzing a discrete-time chaos synchronization secure communication system

, 2003
This paper describes the security weakness of a recently proposed secure communication method based on discrete-time chaos synchronization. We show that the security is compromised even without precise knowledge of the chaotic system used.
Alligood, Beth, F. Montoya, Feki, Forré, G. Pastor, G. Álvarez, Li, Li, M. Romera, Pérez, Short, Short, Stinson, Yang, Yang, Yang, Yang, Zhou, Álvarez, Álvarez, Álvarez, Álvarez   +22 more
core   +1 more source

A Secure and Robust Blockchain‐Based Medical Image Encryption Approach Using Lorenz Chaotic System

Journal of Sensors, Volume 2026, Issue 1, 2026.
Keeping medical images confidential while transmitting is crucial, especially in an open networking environment. One effective approach is blockchain‐based encryption, which provides strong security for sensitive healthcare data. To ensure the greatest levels of medical data integrity and authenticity, our proposed scheme employs a unique Lorenz ...
Fahima Hajjej, Saba Inam, Shamsa Kanwal, Ala Saleh Alluhaidan, Deepali   +4 more
wiley   +1 more source

Improved Linear Cryptanalysis of SOSEMANUK [PDF]

, 2010
The SOSEMANUK stream cipher is one of the finalists of the eSTREAM project. In this paper, we improve the linear cryptanalysis of SOSEMANUK presented in Asiacrypt 2008. We apply the generalized linear masking technique to SOSEMANUK and derive many linear approximations holding with the correlations of up to 2-25.5.
Joo Yeon Cho, Miia Hermelin
openaire   +3 more sources

On relationship between differential/linear clustering effects and the number of active S-boxes in block ciphers

Cybersecurity
Differential cryptanalysis and linear cryptanalysis are the two best-known cryptanalysis techniques for symmetric-key primitives. Ensuring resistance to these attacks is critical for the security of block ciphers.
Ting Peng, Wentao Zhang, Jingsui Weng
doaj   +1 more source

Dynamic MDS Matrices for Substantial Cryptographic Strength [PDF]

, 2011
Ciphers get their strength from the mathematical functions of confusion and diffusion, also known as substitution and permutation. These were the basics of classical cryptography and they are still the basic part of modern ciphers.
Malik, Muhammad Yasir, No, Jong-Seon
core   +2 more sources

Hardware Design for Secure Telemedicine Using A Novel Framework, A New 4D Memristive Chaotic Oscillator, and Dispatched Gray Code Scrambler

Engineering Reports, Volume 7, Issue 10, October 2025.
This work presents a secure telemedicine cryptosystem based on a novel 4D memristive chaotic oscillator and a Dispatched Gray Code Scrambler (DGCS). Implemented on FPGA, the system ensures power‐efficient encryption, making it suitable for real‐time medical image transmission in IoT healthcare environments.
Fritz Nguemo Kemdoum, Serge Raoul Dzonde Naoussi, Gideon Pagnol Ayemtsa Kuete, Justin Roger Mboupda Pone   +3 more
wiley   +1 more source

An Extended Analysis of the Correlation Extraction Algorithm in the Context of Linear Cryptanalysis

Quantum Reports
In cryptography, techniques and tools developed in the subfield of linear cryptanalysis have previously successfully been used to allow attackers to break many sophisticated cryptographic ciphers.
Christoph Graebnitz, Valentin Pickel, Holger Eble, Frank Morgner, Hannes Hattenbach, Marian Margraf   +5 more
doaj   +1 more source