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AIP conference proceedings

Quantum Dense Key Distribution and Secure Communication Without Cryptography

Stefania Castelletto

Published Jan 1, 2004• 0 citations
Publisher

Abstract

This paper presents a protocol for quantum dense key distribution or bidirectional deterministic secure communication. We hereinafter discuss the security of this scheme against individual eavesdropping attacks, and we present preliminary experimental results, showing its feasibility.
DOI
10.1063/1.1834437

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Reply to “Comment on ‘Quantum dense key distribution’ ”

Ivo Pietro Degiovanni, Ivano Ruo Berchera, Stefania Castelletto +4 more

In this Reply we propose a modified security proof of the quantum dense key distribution protocol, detecting also the eavesdropping attack proposed by W\'ojcik in his Comment [W\'ojcik, Phys. Rev. A 71, 016301 (2005)].

arXiv:quant-ph/0410221•Physical Review A•Jan 28, 2005•12 citations
This paper proposes a novel secure communication protocol based on Quantum Key Distribution (QKD). The core claim is to design a protocol capable of completely secure key transmission, resisting eavesdropping and manipulation, thereby guaranteeing communication security. The protocol leverages quantum entanglement to facilitate quantum key transmission and employs cryptographic algorithms for key encryption and decryption. Traditional secure communication protocols relying on classical key exchange are vulnerable to attacks. QKD offers a significantly higher level of security. This document details the protocol's architecture, mathematical formulation of the key exchange process, and the security analysis underpinning its design. The focus is on demonstrating a robust system against known classical and quantum attacks, providing a foundation for future secure communication networks. The system is designed for a two-party communication scenario, aiming for maximal security with reasonable complexity.