Results 21 to 30 of about 5,738 (242)

Efficient Image Encryption Scheme Using Novel 1D Multiparametric Dynamical Tent Map and Parallel Computing

Mathematics, 2023
In order to ensure reliable and secure image exchange, chaotic systems are often considered for their good performance in information security. In this work, we first propose an extended version of a chaotic tent map (TM)—the multiparametric 1D tent map (
Achraf Daoui, Mohamed Yamni, Samia Allaoua Chelloug, Mudasir Ahmad Wani, Ahmed A. Abd El-Latif   +4 more
doaj   +1 more source

A novel investigation of dynamical behavior to describe nonlinear wave motion in (3+1)-dimensions

Results in Physics, 2023
This study focuses on the extended (3+1)-dimensional Sakovich equation, which is utilized for the description of nonlinear wave motion and manifests increased dispersion and nonlinear effects within the realm of nonlinear dynamics. The Lie symmetries are
Miguel Vivas-Cortez, Nauman Raza, Syeda Sarwat Kazmi, Younes Chahlaoui, Ghada Ali Basendwah   +4 more
doaj   +1 more source

Session-Dependent Token-Based Payload Enciphering Scheme for Integrity Enhancements in Wireless Networks

Journal of Sensor and Actuator Networks, 2022
Wireless networks have continued to evolve to offer connectivity between users and smart devices such as drones and wireless sensor nodes. In this environment, insecure public channels are deployed to link the users to their remote smart devices. Some of
Zaid Ameen Abduljabbar, Vincent Omollo Nyangaresi, Mustafa A. Al Sibahee, Mudhafar Jalil Jassim Ghrabat, Junchao Ma, Iman Qays Abduljaleel, Abdulla J. Y. Aldarwish   +6 more
doaj   +1 more source

Research on Grid Scroll Chaotic Extended Sequence Algorithm and Its Circuit Implementation for F-OFDM System

Complexity, 2019
High peak-to-average power ratio (PAPR), a main problem of 5G Filtered-Orthogonal Frequency Division Multiplexing (F-OFDM) system, seriously affects the system’s transmission efficiency.
Yingjie Ma, Ya Li, Geng Zhao, Ping Zeng, Yatao Yang   +4 more
doaj   +1 more source

Extended Harmonic Map Equations and the Chaotic Soliton Solutions

, 2016
In this paper, the theory of harmonic maps is extended. The soliton or traveling wave solutions of Euler's equations of the extended harmonic maps are studied. In certain cases, the chaotic behaviors of these partial equations can be found for the particular case of the metrics and the potential functions of the extended harmonic equations.
Ren, Gang, Duan, Yi-Shi
openaire   +2 more sources

A Provably Secure Group Key Agreement Scheme With Privacy Preservation for Online Social Networks Using Extended Chaotic Maps

IEEE Access, 2018
With the rapid growth in the popularity of mobile devices and development of network technologies, various online social networking applications have grown in popularity.
Chun-Ta Li, Tsu-Yang Wu, Chien-Ming Chen
doaj   +1 more source

A Secure Anonymous Identity-Based Virtual-Space Agreement Method for Crowds-Based Anonymous Communicate Scheme

IET Information Security, 2023
Anonymous data exchange is in great demand in many situations, especially in remote control systems, in which a stable, secure, and secret data channel must be established between the controlling and controlled parties to distribute control commands and ...
Kai Lin, Kaiyu Wang, Jin Shang, Qindong Sun   +3 more
doaj   +1 more source

An Extended Chaotic Map-Based Authentication and Key Agreement Scheme for Multi-Server Environment

Mathematics, 2021
With the increasing number of users and the emergence of different types of network services, a multi-server architecture has emerged in recent years. In order to ensure the secure communication of Internet participants in an open network environment, the authentication and key agreement protocol for multi-server architectures were proposed in the past.
Yu, Yicheng, Taylor, Oliver, Li, Rui, Sunagawa, Baiho   +3 more
openaire   +2 more sources

Raman Microscopy at the Organic–Inorganic Interfaces in Human Calcified Aortic Valves Shows the Co‐Existence of Whitlockite Crystals and Carbonated Hydroxyapatite‐Mineralized Collagen Fibrils

Advanced Functional Materials, EarlyView.
This study advances our understanding of aortic valve stenosis by capturing spatially resolved chemical and structural changes at the nanoscale. The findings highlight the potential of combined Raman and electron microscopy for understanding calcification mechanisms across diverse tissue types.
Robin H. M. Van der Meijden, Carolien T. A Kuster, Amber van Broekhoven, Raphaela Allgayer, Luco Rutten, Rona Roverts, Marta Cerruti, Elena Macías‐Sánchez, Jan Hein Cornel, Salloua el Messaoudi, Anat Akiva, Nico Sommerdijk   +11 more
wiley   +1 more source

High-Dimensional Delayed Cyclic-Coupled Chaotic Model with Time-Varying Parameter Control for Counteracting Finite-Precision Degradation

Mathematics
Digital chaotic systems suffer severe dynamical degradation under finite computational precision, compromising their randomness and unpredictability in security-critical applications.
Qingfeng Huang, Jianan Bao, Lingfeng Liu
doaj   +1 more source