Results 41 to 50 of about 353 (159)

Responses of Reef Fish Populations to Similar Environmental Changes Across Distant Oceanic Islands

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 4, April 2026.
ABSTRACT Oceanic islands are among the most remote and understudied regions of the planet, yet they harbour unique reef fish communities that are increasingly vulnerable to global environmental change. Because these islands are geographically isolated, their populations are often assumed to respond mainly to local environmental conditions.
Thamíris C. Karlovic, Amanda R. Rodrigues, Leeann Henry, Sergio R. Floeter, Kirsty L. Jones, Carlos E. L. Ferreira, Paulo S. Polito, Olga T. Sato, Maria A. Gasalla   +8 more
wiley   +1 more source

Eddy‐Induced Iron Transport Sustains the Biological Productivity in the Gulf of Alaska

Journal of Geophysical Research: Oceans, Volume 131, Issue 2, February 2026.
Abstract The surface waters of the subarctic northeastern Pacific Ocean contain high concentrations of macronutrients such as phosphate and nitrate, which can potentially drive photosynthesis and biological uptake of carbon dioxide. Regional biological productivity, however, is limited by a lack of necessary micronutrients such as iron.
T. Ito, A. H. V. Timmerman, A. Bjouklund, S. I. Stanley, Y. Abe, C. T. Reinhard, J. Montoya   +6 more
wiley   +1 more source

Quantum Chosen-Cipher Attack on Camellia

Mathematics
The Feistel structure represents a fundamental architectural component within the domain of symmetric cryptographic algorithms, with a substantial body of research conducted within the context of classical computing environments.
Yanjun Li, Qi Wang, Dingyun Huang, Jian Liu, Huiqin Xie   +4 more
doaj   +1 more source

Weak Tweak-Keys for the CRAFT Block Cipher

IACR Transactions on Symmetric Cryptology, 2022
CRAFT is a lightweight tweakable Substitution-Permutation-Network (SPN) block cipher optimized for efficient protection of its implementations against Differential Fault Analysis (DFA) attacks.
Gregor Leander, Shahram Rasoolzadeh
doaj   +1 more source

Differential Attacks by Algebraic Solving on a Series of HE‐Friendly Stream Ciphers

IET Information Security, Volume 2026, Issue 1, 2026.
In recent years, many symmetric encryption ciphers have been proposed for homomorphic encryption (HE) applications. Rasta and its variants Masta and Pasta have gradually become a self‐contained series of HE‐friendly stream ciphers. The feature of these ciphers is that a fresh affine layer is randomly generated for each encryption.
Xichao Hu, Lin Jiao, Yongqiang Li, Yonglin Hao, Xinxin Gong, Deepali   +5 more
wiley   +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

Improvement of the Minimal‐Guess‐Basis MILP Model and Its Application to ESF

IET Information Security, Volume 2026, Issue 1, 2026.
The guess‐and‐determine technique find wide applications in the recovery of unknown variables within given system of relations. The fundamental concept behind this technique involves guessing certain unknown variables and deducing the remaining ones based on the relational system.
Lingchen Li, Zhi Qiao, Yiming Dai, Yongzhuang Wei, Tao Ye, Bohui Wang   +5 more
wiley   +1 more source

Quaternion Feistel Cipher with an Infinite Key Space Based on Quaternion Julia Sets

Journal of Telecommunications and Information Technology, 2015
In this paper Quaternion Feistel Cipher (QFC) with an infinite key space based on quaternion Julia sets is proposed. The basic structure of the algorithm is based on the scheme proposed in 2012 by Sastry and Kumar.
Mariusz Dzwonkowski, Roman Rykaczewski
doaj   +1 more source

Security evaluation on type‐1 and type‐1‐like 4‐branch generalized Feistel structures and application to reduced‐round Lesamnta‐LW‐BC

IET Information Security, 2022
Generalized Feistel structures (called GFSs for short) are one of the most popular block cipher structures. They are mainly divided into type‐1, type‐2 and type‐3 GFS.
Xuan Shen, Guoqiang Liu, Xiaofeng Wang, Bing Sun, Jun He   +4 more
doaj   +1 more source

A Type of Differential Fault Attacks of the Stream Cipher SNOW‐V Based on AES Structure

IET Information Security, Volume 2026, Issue 1, 2026.
SNOW‐V is a member in the SNOW family of stream ciphers designed for the 5G mobile communication system. In order to have a high speed, both the linear feedback shift register (LFSR) and finite state machine (FSM) are updated to better align with vectorized implementations and the update function is based on the round function of AES. In this paper, we
Shaoyu Du, Bin Zhang, Lin Jiao, Hongfang Li, Qichun Wang   +4 more
wiley   +1 more source