Securing optical communication networks against evolving cyber
threats necessitates advanced cryptographic techniques. Quantum
cryptography offers an unbreakable security framework, leveraging the
principles of quantum mechanics. However, integrating quantum
cryptography with lightweight and efficient stream ciphers remains a
challenge in high-speed optical networks. Traditional encryption
methods, such as AES and RSA, struggle to meet the real-time demands
of optical communication due to computational overhead and
vulnerability to quantum attacks. This study introduces a hybrid
security framework incorporating Quantum Key Distribution (QKD)
with Espresso ciphers and the Grain stream cipher to enhance security
and efficiency in optical networks. The Espresso cipher, known for its
ultra-lightweight design and energy efficiency, ensures minimal
computational complexity, while the Grain stream cipher provides
robust resistance against differential and linear cryptanalysis. The
integration with QKD ensures unconditional security through
quantum properties such as no-cloning and Heisenberg’s uncertainty
principle. Performance evaluation was conducted using a 100 Gbps
optical network, demonstrating a significant reduction in encryption
latency by 37% compared to conventional AES-based encryption. The
proposed framework also achieved an 89.6% improvement in key
generation efficiency and reduced computational overhead by 41.3%.
Furthermore, resistance against brute-force and side-channel attacks
was significantly enhanced, providing a secure and efficient
cryptographic solution for high-speed optical networks.
M. Mohamed Musthafa1, P. Thangavel2, Anand Paul3
Al-Ameen Engineering College, India1, Government College of Engineering, Erode, India2, Louisiana State University School of Public Health, United States of America3
Quantum Cryptography, Espresso Cipher, Grain Stream Cipher, Optical Communication Security, Quantum Key Distribution
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| Published By :
ICTACT
Published In :
ICTACT Journal on Communication Technology
( Volume: 16 , Issue: 1 , Pages: 3432 - 3436 )
Date of Publication :
March 2025
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