KMITL

Permanent URI for this communityhttps://dspace.kmitl.ac.th/handle/123456789/1

Browse

Settings

Author: search.filters.author.Chimnoy, JiratSubject: search.filters.subject.FPAA

Search Results

Now showing 1 - 2 of 2
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Image cryptography communication using FPAA-based multi-scroll chaotic system
    (2024-03-01)
    Karawanich, Khunanon
    ;
    Chimnoy, Jirat
    ;
    Khateb, Fabian
    ;
    Marwan, Muhammad
    ;
    Prommee, Pipat
    This research presents an image cryptography communication system based on a novel 3D high-complex chaotic system. The chaotic system is implemented by field programmable analog array (FPAA), which is a conveniently reconfigurable system. The image cryptography communication system is realized using low-cost microcontrollers and commercially available devices. The proposed chaotic system based on the jerk model incorporated two different nonlinear functions that can generate single-scroll, double-scroll, three-scroll, four-scroll, and six-scroll attractors by adjusting only one coefficient. The fundamental dynamical properties of the proposed system are investigated, viz., equilibria and stability, dissipative, phase portraits, bifurcation, and Lyapunov exponent, etc. The four-scroll attractor of the proposed system is applied in image encryption. The multi-scroll attractor’s characteristic in this work can achieve relatively high complexity, with a high Kaplan–Yorke dimension of up to 2.45. The performances of the multi-scroll chaotic using FPAAs are proven by comparing the experimental and numerical results. The image cryptography communication system based on the chaotic masking method (CM) has been tested around 1 × 10<sup>7</sup> bits under 9600 bps. The measuring signals of the image cryptography communication system are demonstrated in different scenarios. The experimental results can be ensured that mismatched parameters give the complete cipher image if and only if the bit error rate is more significant than 490,000 × 10<sup>–6</sup>.
  • Loading...
    Thumbnail Image
    Some of the metrics are blocked by your 
    consent settings
    Item type:Publication,
    Realization of image cryptography using FPAA-based two chaotic systems
    (2023-01-01)
    Sanprang, Pitipat
    ;
    Amornsusawad, Chinnapat
    ;
    Boonmak, Kuntapong
    ;
    Chimnoy, Jirat
    ;
    Karawanich, Khunanon
    This paper presents a data cryptography system based on chaotic systems (Lorenz and jerk). The system implementation consists of Field Programmable Analog Array (FPAA) and a microcontroller for transmit and receiver sides. MATLAB/Simulink provides the simulation results in various parameters. The experimental setup is exhibited by applying the data of digital pictures, which are encrypted by the selected chaos model and transmitted by using the serial port. The receiver can be correctly decrypted if and only if the chosen chaos model and parameters are perfectly matched with the transmitter. The experimental results of BER were measured around $42.39\times 10^{-6}$ for the Lorenz system and $38.29\times 10^{-6}$ for the jerk system with a time of approximately 24 minutes to recover all 10,002,432 bits