Results 121 to 130 of about 28,334 (305)

BREAKING LITTLEWOOD'S CIPHER

open access: yesCryptologia, 2004
In 1953, the celebrated mathematician John Edensor Littlewood proposed a stream cipher based on logarithm tables. Fifty years later, we propose the first analysis of his scheme. Littlewood suggests the idea of using real functions as tools to build cryptographic primitives.
openaire   +4 more sources

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

CIPHERING OF TEXT BY USING SHFIT REGISTER TECHNIQUE AND ITS TRANSMISSION OVER OPTICAL FIBER

open access: yesAl-Qadisiyah Journal for Engineering Science, 2010
Stream cipher is one of important branch of cryptography that can be implemented by using software and hard ware components .this system is divided into two types : 1.linear stream cipher system . 2. Non- linear stream cipher system .
Haider J. Abd, Mohanned Hassan Ali
doaj  

On the Security of CS-Cipher [PDF]

open access: yes, 1999
CS-Cipher is a block cipher which has been proposed at FSE 1998. It is a Markov cipher in which diffusion is performed by multipermutations. In this paper we first provide a formal treatment for differential, linear and truncated differential cryptanalysis, and we apply it to CS-Cipher in order to prove that there exists no good characteristic for ...
openaire   +1 more source

Investigating transcription factor dynamics in health and disease using FRAP

open access: yesFEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj   +3 more
wiley   +1 more source

Weaknesses in HENKOS Stream Cipher [PDF]

open access: yes, 2008
HENKOS is a synchronous stream cipher posted by Marius Oliver Gheorghita to eprint. In this paper we are going to present some weaknesses in the cipher. We first present a chosen IV attack which is very straight forward attack on the cipher.
Prasanth Kumar Thandra   +2 more
core   +1 more source

Features of Structural Hardware Transformation of Information in Cryptosystems

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники
The article considers types, functions and some features of cryptosystems, as well as circuit design options for expanding their functionality. Options for generating keys and ciphers used in cryptosystems with a typical structural organization, and ...
A. F. Chernyavskiy   +2 more
doaj   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

open access: yesFEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang   +4 more
wiley   +1 more source

Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation

open access: yesFEBS Letters, EarlyView.
Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang   +2 more
wiley   +1 more source

About the Soviet Cryptographs’ Contribution to the Great Patriotic War Victory

open access: yesБезопасность информационных технологий, 2015
This article deals with the unknown facts of the soviet cryptograph activity during the Great Patriotic War. The specialists of our Cryptographic Service were able to provide the secret connection between the political and military members of the ...
Dmitry Aleksandrovich Larin
doaj  

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