Results 31 to 40 of about 22,418 (196)

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

open access: yesJournal 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

Integral Cryptanalysis of WARP based on Monomial Prediction

open access: yesIACR Transactions on Symmetric Cryptology, 2022
WARP is a 128-bit block cipher published by Banik et al. at SAC 2020 as a lightweight alternative to AES. It is based on a generalized Feistel network and achieves the smallest area footprint among 128-bit block ciphers in many settings.
Hosein Hadipour, Maria Eichlseder
doaj   +1 more source

Feistel Ciphers with L 2-Decorrelation [PDF]

open access: yes, 1999
Recently, we showed how to strengthen block ciphers by decorrelation techniques. In particular, we proposed two practical block ciphers, one based on the GF(2n)-arithmetics, the other based on the x mod p mod 2n primitive with a prime p = 2n(1 + δ). In this paper we show how to achieve similar decorrelation with a prime p = 2n(1 - δ).
openaire   +1 more source

Chosen-Key Distinguishers on 12-Round Feistel-SP and 11-Round Collision Attacks on Its Hashing Modes

open access: yesIACR Transactions on Symmetric Cryptology, 2016
Since Knudsen and Rijmen proposed the known-key attacks in ASIACRYPT 2007, the open-key model becomes more and more popular. As the other component of the open-key model, chosen-key model was applied to the full attacks on AES-256 by Biryukov et al.
Xiaoyang Dong, Xiaoyun Wang
doaj   +1 more source

SLIM: A Lightweight Block Cipher for Internet of Health Things

open access: yesIEEE Access, 2020
Nowadays, there is a strong demand for increasing the protection of resource-constrained devices such as Radio frequency identification (RFID) systems. Current cryptographic algorithms are sufficient for high-resource desktop computers.
Bassam Aboushosha   +4 more
doaj   +1 more source

A Deep Learning Approach for Active S-Box Prediction of Lightweight Generalized Feistel Block Ciphers

open access: yesIEEE 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
doaj   +1 more source

A Modification of TEA Block Cipher Algorithm for Data Security (MTEA) [PDF]

open access: yesEngineering and Technology Journal, 2011
This paper attempts to develop a simple, stronger and safer cryptographic algorithm which would not only be a secure one, but also reduces total time taken for encryption and decryption.
Gaidaa Saeed Mahdi
doaj   +1 more source

A Domain Extender for the Ideal Cipher [PDF]

open access: yes, 2009
peer reviewedWe describe the first domain extender for ideal ciphers, i.e. we show a construction that is indifferentiable from a 2n-bit ideal cipher, given a n-bit ideal cipher.
Dodis, Yevgeniy   +7 more
core   +4 more sources

The Importance and Mechanics of Near‐Seafloor Oxygenation Events in Shallow Coastal Environments

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 9, September 2026.
Abstract Bottom‐water oxygen (O2) possibly constitutes the strongest regulating factor on ecosystem function of the seafloor environment. The conventional view of bottom‐water O2 regulation in temperate regions is a strong seasonal variability imposed by deposition of fresh, labile organic carbon following the spring and fall plankton bloom generating ...
Jonas P. Fredriksson   +4 more
wiley   +1 more source

Dynamic Rounds Chaotic Block Cipher Based on Keyword Abstract Extraction

open access: yesEntropy, 2018
According to the keyword abstract extraction function in the Natural Language Processing and Information Retrieval Sharing Platform (NLPIR), the design method of a dynamic rounds chaotic block cipher is presented in this paper, which takes into account ...
Juan Wang, Qun Ding
doaj   +1 more source

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