Št. zadetkov: 14
Izvirni znanstveni članek
Oznake:
chaos;pseudo-random bit generator;PRBG;encryption;cryptography;nonlinear system;
This work presents a simple method of designing pseudo-random bit generator by generating multiple bits per iteration from the decimal part of a chaotic map. This is done by extracting the decimal part of the state in each iteration and comparing each digit separately to a threshold value. This way, ...
Leto:
2020
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Samostojni znanstveni sestavek ali poglavje v monografski publikaciji
Oznake:
chaos;nonlinear system;encryption;cryptography;image encryption;pseudo-random bit generator;
This work studies the problem of chaos-based image encryption. First, a generalization of the 1D chaotic map proposed by (Talhaoui et al. in The Visual
Computer, pp 1–11, 2020) [8] is constructed and studied. The generalized map showcases regions of constant chaotic behaviour, similar to the origin ...
Leto:
2022
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Objavljeni znanstveni prispevek na konferenci
Oznake:
chaos;nonlinear system;encryption;cryptography;image encryption;pseudo-random bit generator;PRBG;
In this paper, a two-parameter one-dimensional chaotic map with hyperbolic tangent and two nested sinusoidal terms is proposed. The reported map exhibits rich chaotic behavior including such phenomena as the period-doubling route to chaos, crisis, and antimonotonicity appearing. The proposed map is ...
Leto:
2021
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
chaos;one-way functions;adaptive map;hash function;encryption;cryptography;nonlinear system;
Chaotic hash functions are a prospective branch of modern cryptography. Being compared with traditional hashing algorithms, an approach based on deterministic chaos allows achieving diffusion and confusion with less computational costs. Most of the recently proposed chaotic hash functions use piecew ...
Leto:
2020
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Samostojni znanstveni sestavek ali poglavje v monografski publikaciji
Oznake:
chaos;nonlinear system;cryptography;encryption;
Chaotic cryptography is a promising area for the safe and fast transmission, processing, and storage of data. However, many developed chaos-based cryptographic primitives do not meet the size and composition of the keyspace and computational complexity. Another common problem of such algorithms is d ...
Leto:
2022
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
chaos;one-dimensional map;pseudo-random bit generator;encryption;password generator;nonlinear system;
This paper proposes a new one-dimensional chaotic map. The map consists of a coupling between two hyperbolic tangent terms, where the second term is delayed, to avoid dynamical degradation. The map is studied through computation of its bifurcation diagrams and Lyapunov exponent diagrams and is shown ...
Leto:
2023
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
chaos;chaos-based communication;adaptive control;Rossler system;variable symmetry;nonlinear system;
Chaos-based secure communications is a broadly studied field in nonlinear dynamics. Such technique is traditionally based on chaotic synchronization between master and slave systems implemented as the transmitter and receiver. A common way to encode the message is switching the bifurcation parameter ...
Leto:
2022
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Izvirni znanstveni članek
Oznake:
chaos;pseudo-random bit generator;path planning;chaotic mobile robot;UAV;nonlinear system;PRBG;
This work proposes a one-dimensional chaotic map with a simple structure and three parameters. The phase portraits, bifurcation diagrams, and Lyapunov exponent diagrams are first plotted to study the dynamical behavior of the map. It is seen that the map exhibits areas of constant chaos with respect ...
Leto:
2021
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Samostojni znanstveni sestavek ali poglavje v monografski publikaciji
Oznake:
chaos;nonlinear system;PRBG;pseudo-random bit generator;modeling;
Chaotic behavior is a term that is attributed to dynamical systems whose solutions are highly sensitive to initial conditions. This means that small perturbations in the initial conditions can lead to completely different trajectories in the solution space. These types of chaotic dynamical systems a ...
Leto:
2021
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)
Objavljeni znanstveni prispevek na konferenci
Oznake:
chaos;nonlinear system;encryption;cryptography;text encryption;file security;data security;pseudo-random bit generator;
This work studies the problem of chaos-based text encryption. A novel 1-D chaotic map is proposed and studied that exhibits regions of constant chaos, and high values of Lyapunov exponent. Based on the new chaotic map, a pseudorandom bit generator is designed that passes all the National Institute o ...
Leto:
2022
Vir:
Repozitorij Univerze v Novi Gorici (RUNG)