Results 11 to 20 of about 129 (114)
Throwing Boomerangs into Feistel Structures
IACR Transactions on Symmetric Cryptology, 2022 Automatic tools to search for boomerang distinguishers have seen significant advances over the past few years. However, most previous work has focused on ciphers based on a Substitution Permutation Network (SPN), while analyzing the Feistel structure is
Hosein Hadipour +2 more
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Multiset Structural Attack on Generalized Feistel Networks [PDF]
Mathematical Problems in Engineering, 2019 In this paper, we present new generic multiset attacks against generalized Feistel networks, by which we can recover all the unknown round functions completely instead of deciding whether an unknown encryption oracle is such network or a random permutation.
Ruya Fan +4 more
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Impossible Differential Distinguishers of Two Generalized Feistel Structures [PDF]
Security and Communication Networks, 2020 Generalized Feistel structures are widely used in the design of block ciphers. In this paper, we focused on retrieving impossible differentials for two kinds of generalized Feistel structures: CAST256-like structure with Substitution-Permutation (SP) or Substitution-Permutation-Substitution (SPS) round functions (named CAST256SP and CAST256SPS ...
Huili Wang +4 more
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Dianzi Jishu Yingyong, 2021 NBC is a family of block ciphers using Generalized Feistel structure, designed by Xu Hong et al. There are three block and key sizes,i.e.,128/128, 128/256 and 256/256. A 16-bit Sbox is involved in the cipher as the non-linear component.
Yang Jiangshuai +3 more
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Full-round impossible differential attack on shadow block cipher
Cybersecurity, 2023 Lightweight block ciphers are the essential encryption algorithm for devices with limited resources. Its goal is to ensure the security of data transmission through resource-constrained devices.
Yuting Liu +3 more
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IEEE Access, 2021 One of the main security requirements for symmetric-key block ciphers is resistance against differential cryptanalysis. This is commonly assessed by counting the number of active substitution boxes (S-boxes) using search algorithms or mathematical ...
Mohamed Fadl Idris +3 more
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On the (im)possibility of improving the round diffusion of generalized Feistel structures
Information Processing Letters, 2022 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kyoji Shibutani, Tetsu Iwata
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SAT-Based Security Evaluation for WARP against Linear Cryptanalysis
IET Information Security, 2023 WARP, an efficient lightweight block cipher presented by Banik et al., offers a viable alternative to AES with its 128-bit block and a 128-bit key.
Jiali Shi, Guoqiang Liu, Chao Li
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Ecology and Evolution, Volume 13, Issue 12, December 2023., 2023 Body condition in Red‐billed Tropicbirds (Phaethon aethereus) at St Helena, South Atlantic Ocean varied considerably between years, affected by multiple different factors at different stages of the breeding cycle, likely influenced by the Angola Benguela upwelling system. Variation in chick growth rates at two regions in the Atlantic are also examined.
Annalea Beard +7 more
wiley +1 more source
Journal of Geophysical Research: Oceans, Volume 128, Issue 12, December 2023., 2023 Abstract In this study we present new insights into the overturning circulation in non‐tidal, fjord‐type estuarine systems associated with diahaline mixing. As a realistic example we analyze 2 years of numerical model results for the Baltic Sea, a brackish semi‐enclosed marginal sea, characterized by strong freshwater surplus.
Erika Henell +3 more
wiley +1 more source