An Adaptive Cryptographic Protocol for Secure Multi-Party Quantum Key Distribution

International Journal of Computer Science and Technology | Vol. 12, No. 1, January 2010 | pp. 1–8

DOI: 10.46882/2010/IJCST/000022

Article Type: Original Research

Title: An Adaptive Cryptographic Protocol for Secure Multi-Party Quantum Key Distribution

Names of Authors: Charles Babbage¹, Claude E. Shannon²

Authors’ Affiliations: ¹School of Computing, University of Manchester, Manchester, UK; ²Information Theory Division, Massachusetts Institute of Technology, Cambridge, USA

Abstract: Securing distributed digital communications against eavesdropping threats requires cryptographic systems that can resist quantum computing breakthroughs. This research develops an Adaptive Multi-Party Quantum Key Distribution (AM-QKD) protocol designed to establish symmetric cryptographic keys over public fiber-optic networks. The protocol leverages polarization-entangled photon pairs combined with a dynamic error-correction matrix to balance state disturbances. We simulated the cryptographic pipeline over network distances spanning 10 km to 120 km under continuous background noise environments. The testing results demonstrate that AM-QKD maintains a secure key generation rate of 2.5 kbps at maximum channel attenuation. The secret key extraction remains secure against intercept-resend attack models, yielding a low quantum bit error rate (QBER) of 2.1% under standard atmospheric turbulence. We conclude that this adaptive framework provides scalable infrastructure protection for banking networks transitioning to quantum-safe defense layers.

Keywords: Quantum Key Distribution, Cryptographic Protocol, Information Theory, Entanglement, Quantum Cryptography, Network Security

Manuscript Timeline: Received: May 11, 2009; Revised: July 2, 2009; Accepted: August 4, 2009; Published: January 18, 2010

Citation: Babbage, C., & Shannon, C. E. (2010). An Adaptive Cryptographic Protocol for Secure Multi-Party Quantum Key Distribution. International Journal of Computer Science and Technology, 12(1), 1–8.

Subscribe to read the full article: https://www.internationalscholarsjournals.org/subscribe-to-read