Results 21 to 30 of about 129 (114)

Modeling Slope Microclimates in the Mars Planetary Climate Model

Journal of Geophysical Research: Planets, Volume 128, Issue 10, October 2023., 2023
Abstract A large number of surface features (e.g., frost, gullies, slope streaks, recurring slope lineae) are observed on Martian slopes. Their activity is often associated with the specific microclimates on these slopes, which have been mostly studied with one‐dimensional radiative balance models to date. We develop here a parameterization to simulate
L. Lange, F. Forget, E. Dupont, R. Vandemeulebrouck, A. Spiga, E. Millour, M. Vincendon, A. Bierjon   +7 more
wiley   +1 more source

Implementation and Evaluation of a Machine Learned Mesoscale Eddy Parameterization Into a Numerical Ocean Circulation Model

Journal of Advances in Modeling Earth Systems, Volume 15, Issue 10, October 2023., 2023
Abstract We address the question of how to use a machine learned (ML) parameterization in a general circulation model (GCM), and assess its performance both computationally and physically. We take one particular ML parameterization (Guillaumin & Zanna, 2021, https://doi.org/10.1002/essoar.10506419.1) and evaluate the online performance in a different ...
Cheng Zhang, Pavel Perezhogin, Cem Gultekin, Alistair Adcroft, Carlos Fernandez‐Granda, Laure Zanna   +5 more
wiley   +1 more source

Occurrence and conversion of progestogens and androgens are conserved in land plants

New Phytologist, Volume 240, Issue 1, Page 318-337, October 2023., 2023
Summary Progestogens and androgens have been found in many plants, but little is known about their biosynthesis and the evolution of steroidogenesis in these organisms. Here, we show that the occurrence and biosynthesis of progestogens and androgens are conserved across the viridiplantae lineage.
Glendis Shiko, Max‐Jonas Paulmann, Felix Feistel, Maria Ntefidou, Vanessa Hermann‐Ene, Walter Vetter, Benedikt Kost, Grit Kunert, Julie A. Z. Zedler, Michael Reichelt, Ralf Oelmüller, Jan Klein   +11 more
wiley   +1 more source

General Diffusion Analysis: How to Find Optimal Permutations for Generalized Type-II Feistel Schemes

IACR Transactions on Symmetric Cryptology, 2019
Type-II Generalized Feistel Schemes are one of the most popular versions of Generalized Feistel Schemes. Their round function consists in applying a classical Feistel transformation to p sub-blocks of two consecutive words and then shifting the k = 2p ...
Victor Cauchois, Clément Gomez, Gaël Thomas   +2 more
doaj   +1 more source

Tweakable Pseudorandom Permutation from Generalized Feistel Structure

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2008
Tweakable pseudorandom permutations have wide applications such as the disk sector encryption, and the underlying primitive for efficient MACs and authenticated encryption schemes. Goldenberg et al. showed constructions of a tweakable pseudorandom permutation based on the Feistel structure.
MITSUDA, Atsushi, IWATA, Tetsu
openaire   +2 more sources

ALICA: A Multi‐S‐Box Lightweight Cryptographic Algorithm Based on Generalized Feistel Structure

International Journal of Intelligent Systems, 2023
With the development of science and technology, IoT devices have already become ubiquitous in the public eye. Through the perception layer, the collected data are displayed or transmitted to the server backend for analysis. Due to the increasing integration of IoT devices into people’s daily lives, privacy issues, such as data leaks, have received more
Jun Ye 0009, Yabing Chen, Fanglin An, Weili Jiang   +3 more
openaire   +1 more source

Improved Search of Boomerang Distinguishers for Generalized Feistel and Application to WARP

IACR Transactions on Symmetric Cryptology
Boomerang and rectangle cryptanalysis are powerful cryptanalytic techniques for security evaluation of block ciphers. Automated search for boomerang distinguishers is an important area of research. In FSE 2023, Hadipour et al.
Xinhao Zeng, Lin Tan, Hong Xu
doaj   +1 more source

Design of Iterative MDS Matrices Based on MISTY Structure

IET Information Security, Volume 2026, Issue 1, 2026.
The security of symmetric‐key ciphers critically depends on the diffusion efficiency of their linear components. Iterative maximum distance separable (MDS) matrices, as fundamental elements of diffusion layer, play a pivotal role in constructing secure cryptographic systems.
Guoqiang Liu, Yijia Yang, Bing Sun, Da Lin, Kangquan Li, Qichun Wang   +5 more
wiley   +1 more source

Links between Quantum Distinguishers Based on Simon’s Algorithm and Truncated Differentials

IACR Transactions on Symmetric Cryptology
In this paper, we study the quantum security of block ciphers based on Simon’s period-finding quantum algorithm. We explored the relations between periodic functions and truncated differentials. The basic observation is that truncated differentials with
Zejun Xiang, Xiaoyu Wang, Bo Yu, Bing Sun, Shasha Zhang, Xiangyong Zeng, Xuan Shen, Nian Li   +7 more
doaj   +1 more source

Tweakable TWINE: Building a Tweakable Block Cipher on Generalized Feistel Structure

IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, 2019
Tweakable block cipher (TBC) is an extension of conventional block cipher. We study how to build a TBC based on generalized Feistel structure (GFS), a classical block cipher construction. While known dedicated TBC proposals are based on substitution-permutation network (SPN), GFS has not been used for building TBC.
Kosei Sakamoto, Kazuhiko Minematsu, Nao Shibata, Maki Shigeri, Hiroyasu Kubo, Yuki Funabiki, Andrey Bogdanov, Sumio Morioka, Takanori Isobe 0001   +8 more
openaire   +1 more source