Evidence map›Paper›PMID 41582207›Full record

ArticleScientific reports2026

Hopf-Hopf bifurcation analysis and chaotic delayed-DNA audio encryption using cubic nonlinear optoelectronic oscillator.

Muhammad Aiyaz, Junhua Yan, Aqsa Zafar Abbasi, Nermeen Abdullah, Nidhal Becheikh, Walid Hassen, Kaouther Ghachem

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In one paragraph

Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Muhammad AiyazSchool of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China.
Junhua YanSchool of Astronautics, Nanjing University of Aeronautics and Astronautics, Nanjing, 211106, China.
Aqsa Zafar AbbasiDepartment of Applied Mathematics and Statistics, Institute of Space Technology, Islamabad, Pakistan.
Nermeen AbdullahDepartment of Industrial and Systems Engineering, College of Engineering, Princess Nourah bint Abdulrahman University, P.O.Box 84428, Riyadh, 11671, Saudi Arabia.
Nidhal BecheikhMining Research Center, Northern Border University, P.O. Box 1321, Arar, 91431, Saudi Arabia.
Walid HassenLaboratory of Metrology and Energy Systems, National Engineering School of Monastir, Monastir University, Monastir, 5000, Tunisia. hassen.walid@gmail.com.
Kaouther GhachemDepartment of Industrial and Systems Engineering, College of Engineering, Princess Nourah bint Abdulrahman University, P.O.Box 84428, Riyadh, 11671, Saudi Arabia.

Funding

Northern Border University, Saudi Arabia, NBU-CRP-2025-2933Princess Nourah bint Abdulrahman University Researchers PNURSP2026R730
6 · The paper itself

Abstract

The study presents a hybrid model for encryption which is based on the utilization of nonlinear chaotic behaviors in a cubic optoelectronic oscillator (OEO) as well as biomimetic DNA computation to achieve secure and lossless protection of audio data. Using a model of the oscillator that had a delayed feedback loop exhibited a strength of dynamical phenomena including Hopf-Hopf bifurcation, quasi-periodicity, and chaos, which will be applied for the generation of cryptographic keys. Bifurcation analysis was performed using the multiple scales method (MMS) in combination with DDE-BIFTOOL, and the analyses were able to observe the dynamical behaviors of the system through bifurcations while mapping high-entropy key sequences. The chaotic key sequences will drive DNA level permutation, substitution, and complementation processes to perform nonlinear diffusion and confusion of the audio data. Statistical tests demonstrated excellent encryption efficacy, with entropy values approaching [Formula: see text], NSCR above [Formula: see text], and UACI around [Formula: see text] confirming adequate randomness and resistance to statistical and differential attacks. In addition, resulting decrypted signals had negligible MSE [Formula: see text] and high PSNR [Formula: see text]dB), ensuring complete lossless recovery and accuracy.

Indexed as

Audio encryptionChaos-DNA based cryptosystemChaotic delayed systemHopf-Hopf bifurcation

Identifiers

PMID41582207
PMCPMC12905314

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