Results 81 to 90 of about 1,151 (262)
CRITERIA FOR MARKOV BLOCK CIPHERS
Prikladnaya diskretnaya matematika, 2018 Summary: We study probabilistic models of block ciphers with random independent identically distributed round keys. We call they Markov ciphers if sequence of round differentials is a simple homogeneous Markov chain. Criteria and sufficient condition for this property are adjusted and generalized.
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Tau acetylation at K331 has limited impact on tau pathology in vivo
FEBS Letters, EarlyView.We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto +3 more
wiley +1 more source
Deep-Learning-Based Cryptanalysis of Lightweight Block Ciphers Revisited. [PDF]
Entropy (Basel), 2023 Kim H +6 more
europepmc +1 more source
, 2002 In this paper, we propose a new symmetric key block cipher SC2000 with 128-bit block length and 128-,192-,256- bit key lengths. The block cipher is constructed by piling two layers: one is a Feistel structure layer and the other is an SPN structure layer. Each operation used in two layers is S-box or logical operation, which has been well studied about
Takeshi Shimoyama +7 more
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Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
Enhancing IoT Security: An Innovative Key Management System for Lightweight Block Ciphers. [PDF]
Sensors (Basel), 2023 Rana M, Mamun Q, Islam R.
europepmc +1 more source
Cryptanalysis of QTL Block Cipher
, 2017 QTL is an ultra-lightweight block cipher designed for extremely constrained devices. The cipher has two versions, QLT-64 and QTL-128 supporting key lengths of 64 and 128 bits, respectively. In this paper, we present the first third party cryptanalysis of QTL. We first introduce related key distinguishers for full versions of the cipher.
Coban, Mustafa +2 more
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Elastic Block Ciphers: The Feistel Cipher Case
, 2004 We discuss the elastic versions of block ciphers whose round function processes subsets of bits from the data block differently, such as occurs in a Feistel network and in MISTY1. We focus on how specific bits are selected to be swapped after each round when forming the elastic version, using an elastic version of MISTY1 and differential cryptanalysis ...
Cook, Debra L. +2 more
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FEBS Letters, EarlyView.This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel +13 more
wiley +1 more source
On the Fitness Functions Involved in Genetic Algorithms and the Cryptanalysis of Block Ciphers. [PDF]
Entropy (Basel), 2023 Tito-Corrioso O +4 more
europepmc +1 more source