Security of a secret sharing protocol on the Qline

• URL: http://arxiv.org/abs/2504.19702v1
• Date: Mon, 28 Apr 2025 11:56:45 GMT
• Title: Security of a secret sharing protocol on the Qline
• Authors: Alex B. Grilo, Lucas Hanouz, Anne Marin,
• Abstract summary: We present a quantum protocol for distributing additive secret sharing of 0, which we prove to be composably secure within the Abstract Cryptography framework.<n>Our protocol targets the Qline, a recently proposed quantum network architecture designed to simplify and reduce the cost of quantum communication.
• Score: 0.6554326244334868
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Secret sharing is a fundamental primitive in cryptography, and it can be achieved even with perfect security. However, the distribution of shares requires computational assumptions, which can compromise the overall security of the protocol. While traditional Quantum Key Distribution (QKD) can maintain security, its widespread deployment in general networks would incur prohibitive costs. In this work, we present a quantum protocol for distributing additive secret sharing of 0, which we prove to be composably secure within the Abstract Cryptography framework. Moreover, our protocol targets the Qline, a recently proposed quantum network architecture designed to simplify and reduce the cost of quantum communication. Once the shares are distributed, they can be used to securely perform a wide range of cryptographic tasks, including standard additive secret sharing, anonymous veto, and symmetric key establishment.

Related papers

• Quantum Key Distribution with Efficient Post-Quantum Cryptography-Secured Trusted Node on a Quantum Network [1.445798244256451]
  Quantum Key Distribution (QKD) enables two distant users to exchange a secret key with information-theoretic security. We present an efficient scheme leveraging a trusted node with lower privacy requirements thanks to the use of post-quantum cryptographic techniques.
  arXiv  Detail & Related papers  (2025-04-02T08:06:16Z)
• Onion Routing Key Distribution for QKDN [1.8637078358591843]
  The advance of quantum computing poses a significant threat to classical cryptography.<n>Two main approaches have emerged: quantum cryptography and post-quantum cryptography.<n>We propose a secure key distribution protocol for Quantum Key Distribution Networks (QKDN)
  arXiv  Detail & Related papers  (2025-02-10T16:47:42Z)
• Application of $α$-order Information Metrics for Secure Communication in Quantum Physical Layer Design [45.41082277680607]
  We study the $alpha$-order information-theoretic metrics based on R'enyi entropy. We apply our framework to a practical scenario involving BPSK modulation over a lossy bosonic channel.
  arXiv  Detail & Related papers  (2025-02-07T03:44:11Z)
• 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)
• 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)
• Quantum digital signature based on single-qubit without a trusted third-party [45.41082277680607]
  We propose a novel quantum digital signature protocol without a trusted third-party. We prove that the protocol has information-theoretical unforgeability.
  arXiv  Detail & Related papers  (2024-10-17T09:49:29Z)
• 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)
• Composable Security of Distributed Symmetric Key Establishment Protocol [4.806505912512235]
  We show the composable security of the DSKE protocol in the constructive cryptography framework of Maurer. As DSKE is scalable in a network setting with no distance limit, it is expected to be a cost-effective quantum-safe solution to safeguarding the network security against the threat of quantum computers.
  arXiv  Detail & Related papers  (2023-04-26T19:14:52Z)
• Establishing shared secret keys on quantum line networks: protocol and security [0.0]
  We show the security of multi-user key establishment on a single line of quantum communication. We consider a quantum communication architecture where qubit generation and measurement happen at the two ends of the line.
  arXiv  Detail & Related papers  (2023-04-04T15:35:23Z)
• Sharing classical secrets with continuous-variable entanglement: Composable security and network coding advantage [0.913755431537592]
  We show that multi-partite entangled resources achieve a genuine advantage over point-to-point protocols for quantum communication. This is the first concrete compelling examples of multi-partite entangled resources achieving a genuine advantage over point-to-point protocols for quantum communication.
  arXiv  Detail & Related papers  (2021-04-21T17:37:28Z)
• 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.