Enhancing the Security of Quantum Key Distribution Protocols Based on Information Theory

Jincheng Zhang

Published Sep 4, 2026• 0 citations

Abstract

This paper investigates the enhancement of Quantum Key Distribution (QKD) protocols utilizing the principles of information theory. Traditional QKD protocols often rely on simplified models and assumptions, leading to potential security vulnerabilities. We propose a framework for strengthening these protocols by rigorously applying information-theoretic concepts, specifically focusing on quantifying information rates, channel capacities, and the impact of noise. This work introduces a refined model incorporating error correction codes and explores methods for optimizing key rates while maintaining robust security. The core claim is that leveraging information theory's theoretical foundations can significantly improve the security and efficiency of QKD protocols. Specifically, we examine the trade-offs between key rate, key agreement time, and security level, offering a pathway towards more practical and secure QKD implementations. The analysis demonstrates the critical role of precise information modeling in mitigating potential attacks and enhancing the overall performance of QKD systems. ---

DOI: 10.5281/zenodo.22292945

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