Results 31 to 40 of about 401,263 (277)

SAT-based lazy formal analysis method for security protocols

open access: yesTongxin xuebao, 2014
A SAT-based security protocol formalization analysis method named SAT-LMC is proposed.The method introduces optimized the initial state and transformational rules with “lazy” idea.The efficiency of detection is significantly improved.Moreover,by adding ...
Chun-xiang GU   +4 more
doaj   +2 more sources

Dynamic deployment of context-aware access control policies for constrained security devices [PDF]

open access: yes, 2009
Securing the access to a server, guaranteeing a certain level of protection over an encrypted communication channel, executing particular counter measures when attacks are detected are examples of security requirements.
Cuppens, Frederic   +4 more
core   +1 more source

Detection of Sensor Attack and Resilient State Estimation for Uniformly Observable Nonlinear Systems having Redundant Sensors

open access: yes, 2018
This paper presents a detection algorithm for sensor attacks and a resilient state estimation scheme for a class of uniformly observable nonlinear systems. An adversary is supposed to corrupt a subset of sensors with the possibly unbounded signals, while
Eun, Yongsoon   +4 more
core   +1 more source

Using Linearizing Sets to Solve Multivariate Quadratic Equations in Algebraic Cryptanalysis

open access: yesIEEE Access, 2023
In this paper we describe a class of cryptographic guess-and-determine attacks which is based on the notion of a linearizing set. A linearizing set-based attack is applied to a system of Multivariate Quadratic equations (MQ) over $GF(2)$ field, which ...
Alexander Semenov   +3 more
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Strengthening Crypto-1 Cipher Against Algebraic Attacks

open access: yesJournal of ICT Research and Applications, 2015
In the last few years, several studies addressed the problem of data security in Mifare Classic. One of its weaknesses is the low random number quality. This causes SAT solver attacks to have lower complexity.
Farah Afianti, Ari M. Barmawi
doaj   +1 more source

SAT Attacks on ARX Ciphers with Automated Equations Generation [PDF]

open access: yesInfocommunications journal, 2019
We propose a novel and simple approach to algebraic attack on block ciphers with the SAT-solvers. As opposed to a standard approach, the equations for key expansion algorithms are not included in the formulas that are converted to satisfiability problem. The lack of equations leads to finding the solution much faster.
Andrzejczak, Michal, Dudzic, Wladyslaw
openaire   +2 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

Bit‐level evaluation of piccolo block cipher by satisfiability problem solver

open access: yesIET Information Security, 2023
In the field of symmetric key cryptography, the security against distinguishing attacks is one of the crucial security requirements. With advancements in computing capabilities and cryptanalysis techniques in recent years, more efficient methods have ...
Shion Utsumi   +2 more
doaj   +1 more source

Understanding Database Reconstruction Attacks on Public Data [PDF]

open access: yes, 2018
In 2020 the U.S. Census Bureau will conduct the Constitutionally mandated decennial Census of Population and Housing. Because a census involves collecting large amounts of private data under the promise of confidentiality, traditionally statistics are ...
Abowd, John M   +2 more
core   +1 more source

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