A BIT-LEVEL AUDIO ENCRYPTION ALGORITHM USING A NEW HYBRID CHAOTIC MAP

Mehmet Demirtas

doi:10.17780/ksujes.1412850

TR EN

YENİ BiR HİBRİT KAOTİK HARİTA İLE BİT-SEVİYESİ SES ŞİFRELEME ALGORİTMASI

Öz

Ses verilerinin dünya çapında giderek daha fazla iletilmesi, kötü niyetli aktörlerden korunmak için güçlü şifreleme tekniklerinin kullanılmasını gerektirmektedir. İletilen ses dosyalarının güvenliğini sağlamak için, bu çalışmada yeni bir 1B kaotik harita ile bit düzeyinde işlemler kullanılarak yenilikçi ve etkili bir ses şifreleme yöntemi önerilmiştir. Tasarlanan Sine-Chebyshev Hibrit Haritası (SCHM), sinüs haritası ve Chebyshev haritası gibi iki klasik harita kullanılarak oluşturulan, yüksek rastgeleliğe sahip yeni bir kaotik haritadır. Önerilen harita için 2B ve 3B faz yörüngeleri, çatallanma diyagramları, başlangıç durumu duyarlılığı, Lyapunov üssü ve yaklaşık entropi sonuçları verilmiştir. Analiz sonuçları, SCHM'nin sinüs ve Chebyshev haritalarına kıyasla daha geniş bir kaotik aralığa ve daha iyi kaotik özelliklere sahip olduğunu göstermektedir. SCHM ve bit düzeyinde permütasyon ve difüzyon işlemleriyle uygulanan algoritma, tek kanallı veya stereo kanallı ses dosyalarını kayıpsız bir şekilde şifreleyebilir. Önerilen ses şifreleme algoritmasının güvenlik derecesini test etmek için çeşitli güvenlik analizleri yapılmıştır. Dört farklı ses dosyası üzerinde yapılan performans testleri, önerilen şemanın güvenli olduğunu ve tek kanallı veya iki kanallı ses dosyalarını şifrelemek için kullanılabileceğini doğrulamıştır.

Anahtar Kelimeler

A BIT-LEVEL AUDIO ENCRYPTION ALGORITHM USING A NEW HYBRID CHAOTIC MAP

Abstract

Audio data is increasingly transmitted worldwide, necessitating robust encryption techniques to safeguard it from malicious actors. To secure transmitted audio files, a novel, and effective audio encryption method is introduced using a newly designed 1D chaotic map and bit-level operations in this work. The Sine-Chebyshev Hybrid Map (SCHM) is a new chaotic map with high randomness, created using two classical maps, such as the Sine map and the Chebyshev map. Two-dimensional (2D) and three-dimensional (3D) phase trajectories, bifurcation diagrams, initial condition sensitivity, Lyapunov exponent, and approximate entropy results of the proposed map are given. The analysis results show that SCHM has better chaotic properties and a wider chaotic range than the sine and Chebyshev maps. The algorithm implemented with SCHM, bit-level permutation, and diffusion operations can encrypt mono-channel or stereo-channel audio files losslessly. Various security analyses are performed to test the degree of security of the proposed audio encryption algorithm. The performance tests conducted on four different audio data verify that the proposed scheme is secure and can be used to encrypt one-channel or two-channel audio files.

Keywords

References

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Details

Primary Language

English

Subjects

Information Security and Cryptology , Cryptography

Journal Section

Research Article

Authors

Mehmet Demirtas ^*
0000-0002-9018-3124
Türkiye

Publication Date

June 3, 2024

Submission Date

December 31, 2023

Acceptance Date

March 4, 2024

Published in Issue

Year 2024 Volume: 27 Number: 2

DOI

https://doi.org/10.17780/ksujes.1412850

IZ

https://izlik.org/JA57SF22UD

Cite

RIS / Bibtex

APA

Demirtas, M. (2024). A BIT-LEVEL AUDIO ENCRYPTION ALGORITHM USING A NEW HYBRID CHAOTIC MAP. Kahramanmaraş Sütçü İmam Üniversitesi Mühendislik Bilimleri Dergisi, 27(2), 601-614. https://doi.org/10.17780/ksujes.1412850

Cited By

A novel two-dimensional SHIELD map for audio data encryption with two-step confusion and dynamic diffusion process

Physica Scripta

https://doi.org/10.1088/1402-4896/adfc15