Implementation of Secure Quantum Protocol using Multiple Photons for Communication

TL;DR

This paper reports the first implementation of a three-stage quantum communication protocol using multiple photons in free-space, enhancing security against known vulnerabilities of existing quantum cryptography methods.

Contribution

It introduces a novel implementation of a three-stage quantum protocol that utilizes multiple photons, addressing vulnerabilities of traditional BB84-based systems.

Findings

Successful free-space implementation of the three-stage protocol

Demonstrated security advantages over BB84 protocol

First use of multiple photons for secure quantum communication

Abstract

The paper presents the implementation of a quantum cryptography protocol for secure communication between servers in the cloud. As computing power increases, classical cryptography and key management schemes based on computational complexity become increasingly susceptible to brute force and cryptanalytic attacks. Current implementations of quantum cryptography are based on the BB84 protocol, which is susceptible to siphoning attacks on the multiple photons emitted by practical laser sources. The three-stage protocol, whose implementation is described in this paper, is a departure from conventional practice and it obviates some of the known vulnerabilities of the current implementations of quantum cryptography. This paper presents an implementation of the three-stage quantum communication protocol in free-space. To the best of the authors' knowledge, this is the first implementation of a quantum protocol where multiple photons can be used for secure communication.