Unconditionally secure key distribution without quantum channel

• URL: http://arxiv.org/abs/2408.13602v1
• Date: Sat, 24 Aug 2024 15:13:14 GMT
• Title: Unconditionally secure key distribution without quantum channel
• Authors: Hua-Lei Yin,
• Abstract summary: Currently, the quantum scheme stands as the only known method for achieving unconditionally secure key distribution. We propose another key distribution scheme with unconditional security, named probability key distribution, that promises users between any two distances to generate a fixed and high secret key rate. Non-local entangled states can be generated, identified and measured in the equivalent virtual protocol and can be used to extract secret keys.
• Score: 0.76146285961466
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Key distribution plays a fundamental role in cryptography. Currently, the quantum scheme stands as the only known method for achieving unconditionally secure key distribution. This method has been demonstrated over distances of 508 and 1002 kilometers in the measurement-device-independent and twin-field configurations, respectively. However, quantum key distribution faces transmission distance issues and numerous side channel attacks since the basic physical picture requires the use of quantum channels between users. Even when quantum repeater and quantum constellation are used, commercializing quantum cryptography on a large scale remains unattainable due to the considerable expense and significant technical hurdles associated with establishing a global quantum network and facilitating mobile quantum communication. Here, by discovering the provable quantum one-way function, we propose another key distribution scheme with unconditional security, named probability key distribution, that promises users between any two distances to generate a fixed and high secret key rate. There are no quantum channels for exchanging quantum signals between two legitimate users. Non-local entangled states can be generated, identified and measured in the equivalent virtual protocol and can be used to extract secret keys. We anticipate that this discovery presents a paradigm shift in achieving unconditionally secure cryptography, thereby facilitating its widespread application on a global scale.

Related papers

• Towards efficient and secure quantum-classical communication networks [47.27205216718476]
  There are two primary approaches to achieving quantum-resistant security: quantum key distribution (QKD) and post-quantum cryptography (PQC) We introduce the pros and cons of these protocols and explore how they can be combined to achieve a higher level of security and/or improved performance in key distribution. We hope our discussion inspires further research into the design of hybrid cryptographic protocols for quantum-classical communication networks.
  arXiv  Detail & Related papers  (2024-11-01T23:36:19Z)
• Guarantees on the structure of experimental quantum networks [105.13377158844727]
  Quantum networks connect and supply a large number of nodes with multi-party quantum resources for secure communication, networked quantum computing and distributed sensing. As these networks grow in size, certification tools will be required to answer questions regarding their properties. We demonstrate a general method to guarantee that certain correlations cannot be generated in a given quantum network.
  arXiv  Detail & Related papers  (2024-03-04T19:00:00Z)
• Secured Quantum Identity Authentication Protocol for Quantum Networks [2.3317857568404032]
  This paper proposes a quantum identity authentication protocol that protects quantum networks from malicious entanglements. Unlike the existing protocols, the proposed quantum authentication protocol does not require periodic refreshments of the shared secret keys.
  arXiv  Detail & Related papers  (2023-12-10T05:36:49Z)
• Revocable Cryptography from Learning with Errors [61.470151825577034]
  We build on the no-cloning principle of quantum mechanics and design cryptographic schemes with key-revocation capabilities. We consider schemes where secret keys are represented as quantum states with the guarantee that, once the secret key is successfully revoked from a user, they no longer have the ability to perform the same functionality as before.
  arXiv  Detail & Related papers  (2023-02-28T18:58:11Z)
• Interactive Protocols for Classically-Verifiable Quantum Advantage [46.093185827838035]
  "Interactions" between a prover and a verifier can bridge the gap between verifiability and implementation. We demonstrate the first implementation of an interactive quantum advantage protocol, using an ion trap quantum computer.
  arXiv  Detail & Related papers  (2021-12-09T19:00:00Z)
• Secure distribution of a certified random quantum key using an entangled memory qubit [0.0]
  We produce a certified random secret key on both endpoints of the quantum communication channel. We certify the randomness of the key using the min-entropy of the atom-photon state.
  arXiv  Detail & Related papers  (2021-11-29T13:31:30Z)
• Enhanced Quantum Key Distribution using Hybrid Channels and Natural Random Numbers [0.0]
  We propose three secure key distribution protocols based on a blend of classical and quantum channels. The proposed protocols exploits the property of quantum computers to generate natural random numbers that can be easily transmitted.
  arXiv  Detail & Related papers  (2020-07-28T15:14:59Z)
• Quantum key distribution with entangled photons generated on-demand by a quantum dot [0.0]
  Entanglement-based protocols offer additional layers of security and scale favorably with quantum repeaters. We experimentally demonstrate a modified Ekert quantum key distribution protocol with two quantum channel approaches. Our field study highlights that quantum-dot entangled-photon sources are ready to go beyond laboratory experiments.
  arXiv  Detail & Related papers  (2020-07-24T18:21:19Z)
• Single-Shot Secure Quantum Network Coding for General Multiple Unicast Network with Free One-Way Public Communication [56.678354403278206]
  We propose a canonical method to derive a secure quantum network code over a multiple unicast quantum network. Our code correctly transmits quantum states when there is no attack. It also guarantees the secrecy of the transmitted quantum state even with the existence of an attack.
  arXiv  Detail & Related papers  (2020-03-30T09:25:13Z)
• Experimental quantum conference key agreement [55.41644538483948]
  Quantum networks will provide multi-node entanglement over long distances to enable secure communication on a global scale. Here we demonstrate quantum conference key agreement, a quantum communication protocol that exploits multi-partite entanglement. We distribute four-photon Greenberger-Horne-Zeilinger (GHZ) states generated by high-brightness, telecom photon-pair sources across up to 50 km of fibre.
  arXiv  Detail & Related papers  (2020-02-04T19:00:31Z)
• Implementation of Continuous-Variable Quantum Key Distribution with Composable and One-Sided-Device-Independent Security Against Coherent Attacks [0.0]
  State-of-the-art quantum key distribution requires composable security against coherent attacks. We present an implementation of continuous-variable quantum key distribution satisfying these requirements. Our work is a crucial step towards practical implementations of quantum key distribution with state-of-the-art security based solely on telecom components.
  arXiv  Detail & Related papers  (2014-06-24T09:20:24Z)

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.