The future of secure communications: device independence in quantum key distribution

• URL: http://arxiv.org/abs/2504.06350v1
• Date: Tue, 08 Apr 2025 18:00:32 GMT
• Title: The future of secure communications: device independence in quantum key distribution
• Authors: Seyed Arash Ghoreishi, Giovanni Scala, Renato Renner, Letícia Lira Tacca, Jan Bouda, Stephen Patrick Walborn, Marcin Pawłowski,
• Abstract summary: Device-independent Quantum Key Distribution (DI-QKD) stands out for its unique approach to ensuring security.<n>This review explores the pivotal role of nonclassicality and the challenges posed by various experimental loopholes for DI-QKD.
• Score: 1.2145532233226684
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In the ever-evolving landscape of quantum cryptography, Device-independent Quantum Key Distribution (DI-QKD) stands out for its unique approach to ensuring security based not on the trustworthiness of the devices but on nonlocal correlations. Beginning with a contextual understanding of modern cryptographic security and the limitations of standard quantum key distribution methods, this review explores the pivotal role of nonclassicality and the challenges posed by various experimental loopholes for DI-QKD. Various protocols, security against individual, collective and coherent attacks, and the concept of self-testing are also examined, as well as the entropy accumulation theorem, and additional mathematical methods in formulating advanced security proofs. In addition, the burgeoning field of semi-device-independent models (measurement DI--QKD, Receiver DI--QKD, and One--sided DI--QKD) is also analyzed. The practical aspects are discussed through a detailed overview of experimental progress and the open challenges toward the commercial deployment in the future of secure communications.

Related papers

• Practical hybrid PQC-QKD protocols with enhanced security and performance [44.8840598334124]
  We develop hybrid protocols by which QKD and PQC inter-operate within a joint quantum-classical network. In particular, we consider different hybrid designs that may offer enhanced speed and/or security over the individual performance of either approach.
  arXiv  Detail & Related papers  (2024-11-02T00:02:01Z)
• Coding-Based Hybrid Post-Quantum Cryptosystem for Non-Uniform Information [53.85237314348328]
  We introduce for non-uniform messages a novel hybrid universal network coding cryptosystem (NU-HUNCC) We show that NU-HUNCC is information-theoretic individually secured against an eavesdropper with access to any subset of the links.
  arXiv  Detail & Related papers  (2024-02-13T12:12:39Z)
• The Evolution of Quantum Secure Direct Communication: On the Road to the Qinternet [49.8449750761258]
  Quantum secure direct communication (QSDC) is provably secure and overcomes the threat of quantum computing.<n>We will detail the associated point-to-point communication protocols and show how information is protected and transmitted.
  arXiv  Detail & Related papers  (2023-11-23T12:40:47Z)
• Finite-Key Analysis for Coherent One-Way Quantum Key Distribution [18.15943439545963]
  Coherent-one-way (COW) quantum key distribution (QKD) is a significant communication protocol that has been implemented experimentally and deployed in practical products. Existing security analyses of COW-QKD either provide a short transmission distance or lack immunity against coherent attacks in the finite-key regime. We present a tight finite-key framework for a variant of COW-QKD, which has been proven to extend the secure transmission distance in the case.
  arXiv  Detail & Related papers  (2023-09-28T03:32:06Z)
• Practical quantum secure direct communication with squeezed states [55.41644538483948]
  We report the first table-top experimental demonstration of a CV-QSDC system and assess its security. This realization paves the way into future threat-less quantum metropolitan networks, compatible with coexisting advanced wavelength division multiplexing (WDM) systems.
  arXiv  Detail & Related papers  (2023-06-25T19:23:42Z)
• Single-Photon-Memory Measurement-Device-Independent Quantum Secure Direct Communication -- Part I: Its Fundamentals and Evolution [63.75763893884079]
  Quantum secure direct communication (QSDC) has attracted a lot of attention, which exploits deep-rooted quantum physical principles to guarantee unconditional security of communication in the face of eavesdropping. We first briefly review the fundamentals of QSDC, and then present its evolution, including its security proof, its performance improvement techniques, and practical implementation.
  arXiv  Detail & Related papers  (2023-04-19T02:26:25Z)
• Advances in device-independent quantum key distribution [8.155166479336625]
  Device-independent quantum key distribution (DI-QKD) provides the gold standard for secure key exchange. Recent theoretical and experimental efforts have led to the first proof-of-principle DI-QKD implementations.
  arXiv  Detail & Related papers  (2022-08-26T18:55:40Z)
• Security of device-independent quantum key distribution protocols: a review [0.0]
  Device-independent quantum key distribution (DI-QKD) is often seen as the ultimate key exchange protocol in terms of security. We will provide an introduction to DI-QKD, an overview of the related experiments performed, and the theory and techniques required to analyse its security.
  arXiv  Detail & Related papers  (2022-06-10T09:20:20Z)
• Experimental measurement-device-independent type quantum key distribution with flawed and correlated sources [14.143874849657317]
  Security of quantum key distribution (QKD) is threatened by discrepancies between realistic devices and theoretical assumptions. Here, we adopt the reference technique to prove security of an efficient four-phase measurement-device-independent QKD using laser pulses against potential source imperfections. In addition, we demonstrate the feasibility of our protocol through a proof-of-principle experimental implementation and achieve a secure key rate of 253 bps with a 20 dB channel loss.
  arXiv  Detail & Related papers  (2022-04-18T13:44:51Z)
• Simple Proof of Security of the multiparty Prepare and Measure QKD [0.0]
  This paper examines the prepare and measure version of multiparty communication through quantum key distribution. It is sufficient to have the capability of preparing and measuring a single qubit state.
  arXiv  Detail & Related papers  (2022-04-11T16:01:12Z)
• Backflash Light as a Security Vulnerability in Quantum Key Distribution Systems [77.34726150561087]
  We review the security vulnerabilities of quantum key distribution (QKD) systems. We mainly focus on a particular effect known as backflash light, which can be a source of eavesdropping attacks.
  arXiv  Detail & Related papers  (2020-03-23T18:23:12Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.