Results 61 to 70 of about 6,661,504 (214)

Diffusion Analysis Of A Scalable Feistel Network

, 2007
A generalization of the concepts of Feistel Networks (FN), known as Extended Feistel Network (EFN) is examined. EFN splits the input blocks into n > 2 sub-blocks. Like conventional FN, EFN consists of a series of rounds whereby at least one sub-block is subjected to an F function.
Subariah Ibrahim, Mohd Aizaini Maarof
openaire   +1 more source

The influence of hydrological seasonality and land use and cover on the relationship between dissolved organic carbon and carbon dioxide along a karst‐draining large tropical river

Limnology and Oceanography, Volume 70, Issue 10, Page 2858-2871, October 2025.
Abstract The partial pressure of carbon dioxide (pCO2) in rivers is influenced by carbonate weathering, soil CO2, photosynthesis, and the mineralization of dissolved organic carbon (DOC). In tropical regions, elevated temperatures intensify these processes. However, their seasonal dynamics remain poorly understood in large karst‐draining rivers.
Daniel Cuevas‐Lara, Javier Alcocer, Felipe García‐Oliva, Salvador Sánchez‐Carrillo, Ismael Soria‐Reinoso, Luis A. Oseguera   +5 more
wiley   +1 more source

Sequential escapes: onset of slow domino regime via a saddle connection [PDF]

, 2018
We explore sequential escape behaviour of coupled bistable systems under the influence of stochastic perturbations. We consider transient escapes from a marginally stable "quiescent" equilibrium to a more stable "active" equilibrium.
Ashwin, Peter, Creaser, Jennifer, Tsaneva-Atanasova, Krasimira   +2 more
core   +2 more sources

Hydraulics of Channelized Flow in Ice‐Supersaturated Debris: 1. Rock Glacier Hydrology in Alpine Glacial‐Periglacial Systems

Water Resources Research, Volume 61, Issue 2, February 2025.
Abstract Frozen sediment accumulations, including rock glaciers, talus, and moraines, constitute complex aquifers in permafrost‐affected terrain. The spatial distribution of permafrost ice largely governs the flow of water through the subsurface, which exhibits a spectrum of flow patterns, ranging from diffuse flow through a porous matrix to ...
Magdalena Seelig, Simon Seelig, Karl Krainer, Gerfried Winkler   +3 more
wiley   +1 more source

New Algorithm for Exhausting Optimal Permutations for Generalized Feistel Networks

, 2022
The Feistel construction is one of the most studied ways of building block ciphers. Several generalizations were proposed in the literature, leading to the Generalized Feistel Network (GFN) construction, in which the round function operates on each pair of blocks in parallel until all branches are permuted.
Delaune, Stéphanie, Derbez, Patrick, Gontier, Arthur, Prud'Homme, Charles   +3 more
openaire   +2 more sources

Using Simon's Algorithm to Attack Symmetric-Key Cryptographic Primitives [PDF]

, 2017
We present new connections between quantum information and the field of classical cryptography. In particular, we provide examples where Simon's algorithm can be used to show insecurity of commonly used cryptographic symmetric-key primitives ...
Santoli, Thomas, Schaffner, Christian
core   +1 more source

A DNA‐Dynamic Permutation‐Diffusion Algorithm for Image Encryption Using Scaling Chaotification Models and Advanced DNA Operations

IET Image Processing, Volume 19, Issue 1, January/December 2025.
This paper proposes a DNA‐Dynamic Concurrent Permutation‐Diffusion Algorithm (DNA‐DCP‐DA) for secure image encryption, employing novel scaling chaotification models and advanced noncommutative DNA operations to address weaknesses in existing systems.
Mustafa Kamil Khairullah, Mohd Zafri Bin Baharuddin, Reema Thabit, Mohammad Ahmed Alomari, Gamal Alkawsi, Faten A. Saif   +5 more
wiley   +1 more source

Design Trends and Comparative Analysis of Lightweight Block Ciphers for IoTs

Applied Sciences
This paper provides a comprehensive survey of 58 lightweight block ciphers (LWBCs) introduced between 2018 and 2025, designed specifically for securing resource-constrained environments such as the Internet of Things (IoTs).
Safia Meteb Al-Nofaie, Sanaa Sharaf, Rania Molla   +2 more
doaj   +1 more source

Systematization of a 256-bit lightweight block cipher Marvin [PDF]

, 2018
In a world heavily loaded by information, there is a great need for keeping specific information secure from adversaries. The rapid growth in the research field of lightweight cryptography can be seen from the list of the number of lightweight stream as ...
Bhattacharya, Abhishek, Rarhi, Krishnendu, Saha, Sukanya   +2 more
core   +1 more source

Unbalanced Feistel networks and block cipher design [PDF]

, 1996
We examine a generalization of the concept of Feistel networks, which we call Unbalanced Feistel Networks (UFNs). Like conventional Feistel networks, UFNs consist of a series of rounds in which one part of the block operates on the rest of the block. However, in a UFN the two parts need not be of equal size. Removing this limitation on Feistel networks
Bruce Schneier, John Kelsey
openaire   +1 more source