Considerations on Quantum-Based Methods for Communication Security

TL;DR

This paper discusses the fundamental challenges and opportunities of quantum-based communication security methods, aiming to clarify their potential benefits and limitations compared to classical approaches for a broader understanding.

Contribution

It provides an intuitive overview of quantum communication security, emphasizing core issues and concepts to aid assessment of quantum technologies' value over classical methods.

Findings

Highlights fundamental issues in quantum communication security

Clarifies potential advantages of quantum methods

Provides a foundational perspective for broader quantum applications

Abstract

In this paper we provide an intuitive-level discussion of the challenges and opportunities offered by quantum-based methods for supporting secure communications, e.g., over a network. The goal is to distill down to the most fundamental issues and concepts in order to provide a clear foundation for assessing the potential value of quantum-based technologies relative to classical alternatives. It is hoped that this form of exposition can provide greater clarity of perspective than is typically offered by mathematically-focused treatments of the topic. It is also hoped that this clarity extends to more general applications of quantum information science such as quantum computing and quantum sensing.