An ETSI GS QKD compliant TLS implementation

TL;DR

This paper presents a modified TLS protocol integrated with Quantum Key Distribution (QKD) standards, enabling secure communication with backward compatibility, demonstrated through a video call and performance analysis.

Contribution

It introduces a QKD-compliant TLS implementation based on ETSI standards, maintaining backward compatibility and demonstrating practical application and performance evaluation.

Findings

Successful integration of QKD with TLS protocol

Comparable handshake times to TLS 1.3

Practical application in video conferencing

Abstract

A modification of the TLS protocol is presented, using our implementation of the Quantum Key Distribution (QKD) standard ETSI GS QKD 014 v1.1.1. We rely on the Rustls library for this. The TLS protocol is modified while maintaining backward compatibility on the client and server side. We thus wish to participate in the effort to generalize the use of QKD on the Internet. We used our protocol for a video conference call encrypted by QKD. Finally, we analyze the performance of our protocol, comparing the time needed to establish a handshake to that of TLS 1.3.