QSAC: Quantum-assisted Secure Audio Communication using quantum entanglement, audio steganography, and classical encryption
Published in Published in Engineering Science and Technology., 2025
This paper proposes QSAC, a novel framework for secure audio communication that integrates quantum key distribution (QKD) using the E91 protocol, classical encryption (ChaCha20-Poly1305), and audio steganography (LSB). The system generates a quantum-secured key, hashes it with SHA-3 for high entropy, hides the secret audio within a cover signal, and then encrypts it. Rigorous experiments demonstrated the method’s robustness against classical and quantum attacks, showing high randomness in the encrypted output (avg. entropy ~16) and successfully using the CHSH inequality to detect eavesdroppers.
Recommended citation: @article{RIFAT2025102167, title = {QSAC: Quantum-assisted Secure Audio Communication using quantum entanglement, audio steganography, and classical encryption}, journal = {Engineering Science and Technology, an International Journal}, volume = {70}, pages = {102167}, year = {2025}, issn = {2215-0986}, doi = {https://doi.org/10.1016/j.jestch.2025.102167}, url = {https://www.sciencedirect.com/science/article/pii/S2215098625002228}, author = {Md. Raisul Islam Rifat and Md. Mizanur Rahman and Md. Abdul Kader Nayon and Md Shawmoon Azad and M.R.C. Mahdy}, keywords = {Quantum Key Distribution (QKD), E91 protocol, Entanglement, CHSH inequality, Steganography, ChaCha20-Poly1305, Secure Hash Algorithm (SHA)}, }
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