Chaotic digital cryptosystem using serial peripheral interface protocol and its dsPIC implementation

A Multidimensional Hyperjerk Oscillator: Dynamics Analysis, Analogue and Embedded Systems Implementation, and Its Application as a Cryptosystem

“…While Field Programmable Gate Arrays (FPGA) are the popular option for providing configurable circuits practical implementation of embedded systems using chaos [33], recently some microcontroller-based chaotic systems have been considered due to their equally flexible and cheap pricing for different programming applications [34][35][36][37][38][39][40][41]. In this study, we use an Arduino UNO board platform to compute and visualise the solutions (for example, using an oscilloscope) of our chaos generator.…”

“…Step 3: Write the solutions of the discrete chaotic oscillator on Arduino pins. Pin 1 is activated when x2 > 0.5 and pin 2 is activated when x1 > 1. pricing for different programming applications [34][35][36][37][38][39][40][41]. In this study, we use an Arduino UNO board platform to compute and visualise the solutions (for example, using an oscilloscope) of our chaos generator.…”

A New Simple Chaotic Lorenz-Type System and Its Digital Realization Using a TFT Touch-Screen Display Embedded System

“…The microcontroller PIC32 was programmed by using Mikroc Pro for Pic 32 compiler that includes the standard IEEE-754; this means that the numerical results in simulation by using Matlab to represent the DV-system (14) and implementation by using Mikroc Pro for Pic 32 compiler are equivalents. We use a novel method reported in [37,38] in order to reproduce the DV of chaotic system (14) by using an PIC32 microcontroller and external DACs connected by the serial peripheral interface (SPI) protocol. The compact ES Mikromedia Plus for PIC32MX7 contains one 32-bit PIC32MX795F512L microcontroller as central part.…”

“…The CVs usually are represented by using OAs [31,34]. For DVs, Matlab or Labview allows simulating the dynamical behaviors of discretized chaotic systems to desirably obtain the less degradation with respect to CVs, and their implementations are reproduced by using ESs as FPGAs [35], DSPs [36], or microcontrollers [37][38][39].…”

“…The novelty of the proposed chaotic system is the combination of different characteristics that it presents: two critical parameters, only two nonlinearities, low complexity time, low iterations per second, and a larger step size for the discretized version where chaos is preserved, low-cost electronic implementation; also it is flexible and robust with respect to some recent attractors reported in the literature; see, for example, [22,23]. As a consequence, all these features result in a high ease of implementation that may be of great interest in engineering applications, for example, in cryptography, biometric 2 Complexity systems, telemedicine, and secure communications; see, for example, [10,12,13,37]. To the best of our knowledge the electronical implementation in a portable TFTTSD device of DV of chaotic systems, for the reproduction of their nonlinear dynamics in real-time, is new.…”