Quantum Key Storage for Efficient Key Management

TL;DR

This paper evaluates and improves key storage designs for quantum key distribution networks, emphasizing their role in enhancing service efficiency for critical infrastructure applications.

Contribution

It introduces a novel key storage design, validated through simulations, that outperforms existing methods in key creation and supply efficiency.

Findings

The new design shows superior performance in simulations.

Existing designs are less effective in key management.

The study emphasizes the importance of key storage in QKD networks.

Abstract

In the ongoing discourse surrounding integrating QKD networks as a service for critical infrastructures, key storage design often receives insufficient attention. Nonetheless, it bears crucial significance as it profoundly impacts the efficiency of QKD network services, thereby shaping its suitability for diverse applications. In this article, we analyze the effectiveness of key storage designs developed through practical testbeds and propose a novel key storage design to increase the effectiveness of key creation and supply. All key storage designs underwent analysis using network simulation tools, and the findings demonstrate that the novel key storage design surpasses existing approaches in terms of performance.