Results 71 to 80 of about 778,010 (200)
Dynamic S-Box Design Using a Novel Square Polynomial Transformation and Permutation
IEEE Access, 2021 New era ciphers employ substitution boxes (S-boxes) which assist in the provision of security for the plaintext in the encryption phase and transforming the ciphertext on the receiver side into original plaintext in the decryption phase.
Amjad Hussain Zahid +11 more
doaj +1 more source
Design and optimization of nonlinear component of block cipher: Applications to multimedia security
Ain Shams Engineering JournalNowadays, various image encryption schemes based on chaotic systems have been developed, each of them has its own limitations and strength in terms of security and computational speed.
Adil Waheed +4 more
doaj +1 more source
A Systemic Model for Understanding Business Interactions With Biodiversity and Ecosystems
Business Strategy and the Environment, EarlyView.ABSTRACT Biodiversity loss and ecosystem degradation represent critical threats to human well‐being and economic resilience, challenging businesses to understand and manage their interdependence with natural systems. This study develops a systemic framework—the BioModel—that elucidates the reciprocal relationship between businesses, biodiversity, and ...
Lino Cinquini +2 more
wiley +1 more source
Station‐Based Assessment of Sub‐Seasonal Climate Trends in the Tyrolean Alps (Austria)
International Journal of Climatology, EarlyView.In this study, we quantify the magnitude and significance of sub‐seasonal trends in the Tyrolean Alps (Austria) by collecting, processing and analysing meteorological observations from a dense network of climate stations. Our analysis indicates a warming rate of 0.43°C/dec over 1964–2023, greater sub‐seasonal trend variability when the analysis window ...
Erwin Rottler +6 more
wiley +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT An understanding of the terrestrial extent, retreat dynamics and climate–glacier coupling of ice masses during the Last Glacial Termination (LGT, ~18–11 ka) is often limited by a fragmentary geomorphological record and is dependent on precise, accurate and robust dating frameworks.
Alastair M. Curry +3 more
wiley +1 more source
AIP Advances, 2017 The aim of this work is to synthesize 8*8 substitution boxes (S-boxes) for block ciphers. The confusion creating potential of an S-box depends on its construction technique.
Anas Altaleb +3 more
doaj +1 more source
Construction of Cryptographic S-Boxes Based on Mobius Transformation and Chaotic Tent-Sine System
IEEE Access, 2019 Over the last few decades, different mediums of secure communication use chaos which is demonstrated by some nonlinear dynamical systems. Chaos shows unpredictable behavior and this characteristic is quite helpful in different encryption techniques and ...
Sajjad Shaukat Jamal +4 more
doaj +1 more source
Automated design of a lightweight block cipher with Genetic Programming [PDF]
, 2008 In this paper, we present a general framework for the automated design of cryptographic block ciphers by using Genetic Programming. We evolve highly nonlinear and extremely efficient functions that can be used as core components of any cryptographic ...
Hernandez-Castro, Julio C. +3 more
core +1 more source
Chaining ＆ counter-based block cipher mode for authentication
Tongxin xuebao, 2009 For raising the operation efficiency of block cipher algorithms,a fast authentication mode based on chaining ＆ counter（CCTR） was put forward;and its security was proved.Its speed was about 30% faster than that of authentication modes in common use（for ...
HUANG Yu-hua1 +2 more
doaj +2 more sources
Complexity, 2018 This paper proposes a novel method of constructing strong substitution-boxes (S-boxes) of order n (4 ≤ n ≤ 8) based on a recent optimization algorithm known as sine-cosine algorithm (SCA). The paper also proposes a new 1D chaotic map, which owns enhanced
Amer Awad Alzaidi +3 more
doaj +1 more source