Quantum-Resilient Privacy Ledger (QRPL): A Sovereign Digital Currency for the Post-Quantum Era

• URL: http://arxiv.org/abs/2507.09067v2
• Date: Fri, 18 Jul 2025 16:51:19 GMT
• Title: Quantum-Resilient Privacy Ledger (QRPL): A Sovereign Digital Currency for the Post-Quantum Era
• Authors: Serhan W. Bahar,
• Abstract summary: Quantum-Resilient Privacy Ledger (QRPL) is a token-based digital currency architecture that incorporatesNIST-standardised post-quantum cryptography (PQC) with hash-based zero-knowledge proofs to ensure user sovereignty, scalability, and transaction confidentiality.<n> QRPL aims to address critical shortcomings in prevailing CBDC designs, including risks of pervasive surveillance, with a 10-20 second block time to balance security and throughput in future monetary systems.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The emergence of quantum computing presents profound challenges to existing cryptographic infrastructures, whilst the development of central bank digital currencies (CBDCs) has raised concerns regarding privacy preservation and excessive centralisation in digital payment systems. This paper proposes the Quantum-Resilient Privacy Ledger (QRPL) as an innovative token-based digital currency architecture that incorporates National Institute of Standards and Technology (NIST)-standardised post-quantum cryptography (PQC) with hash-based zero-knowledge proofs to ensure user sovereignty, scalability, and transaction confidentiality. Key contributions include adaptations of ephemeral proof chains for unlinkable transactions, a privacy-weighted Proof-of-Stake (PoS) consensus to promote equitable participation, and a novel zero-knowledge proof-based mechanism for privacy-preserving selective disclosure. QRPL aims to address critical shortcomings in prevailing CBDC designs, including risks of pervasive surveillance, with a 10-20 second block time to balance security and throughput in future monetary systems. While conceptual, empirical prototypes are planned. Future work includes prototype development to validate these models empirically.

Related papers

• Efficient Blockchain-based Steganography via Backcalculating Generative Adversarial Network [105.47203971578871]
  We propose a generic blockchain-based steganography framework (GBSF)<n>The sender generates the required fields such as amount and fees, where the additional covert data is embedded to enhance the channel capacity.<n>Based on GBSF, we design a reversible generative adversarial network (R-GAN)<n>We propose R-GAN with Counter-intuitive data preprocessing and Custom activation functions, namely CCR-GAN.
  arXiv  Detail & Related papers  (2025-06-19T04:43:41Z)
• Extensible Post Quantum Cryptography Based Authentication [1.7449047573672085]
  We introduce a quantum-safe single-shot protocol for machine-to-machine authentication and authorization.<n> operating entirely over insecure channels, this protocol enables the forward-secure establishment of tokens.<n>This study lays the groundwork for scalable, resilient, and future-proof identity infrastructures in a quantum-enabled world.
  arXiv  Detail & Related papers  (2025-05-22T01:34:17Z)
• Quantum-Resilient Blockchain for Secure Transactions in UAV-Assisted Smart Agriculture Networks [0.0]
  The integration of unmanned aerial vehicles (UAVs) into smart agriculture has enabled real-time monitoring, data collection, and automated farming operations.<n>This paper presents a quantum-resilient blockchain framework designed to secure data and resource transactions in UAV-assisted smart agriculture networks.
  arXiv  Detail & Related papers  (2025-05-21T17:12:39Z)
• Will Central Bank Digital Currencies (CBDC) and Blockchain Cryptocurrencies Coexist in the Post Quantum Era? [0.0]
  This paper explores the coexistence possibilities of Central Bank Digital Currencies (CBDCs) and blockchain-based cryptocurrencies. It examines the implications of emerging quantum algorithms and cryptographic techniques such as Multi-Party Computation (MPC) and Oblivious Transfer (OT) The paper renders the judicious conclusion that long-term coexistence is viable provided challenges are constructively addressed.
  arXiv  Detail & Related papers  (2024-11-10T05:05:55Z)
• SPOQchain: Platform for Secure, Scalable, and Privacy-Preserving Supply Chain Tracing and Counterfeit Protection [46.68279506084277]
  This work proposes SPOQchain, a novel blockchain-based platform that provides comprehensive traceability and originality verification. It provides an analysis of privacy and security aspects, demonstrating the need and qualification of SPOQchain for the future of supply chain tracing.
  arXiv  Detail & Related papers  (2024-08-30T07:15:43Z)
• Towards a Novel Privacy-Preserving Distributed Multiparty Data Outsourcing Scheme for Cloud Computing with Quantum Key Distribution [0.0]
  This research addresses the escalating vulnerabilities by proposing a comprehensive framework that integrates Quantum Key Distribution (QKD), CRYSTALS Kyber, and Zero-Knowledge Proofs (ZKPs) We leverage the lattice-based cryptographic mechanism, CRYSTALS Kyber, known for its resilience against quantum attacks. ZKPs are introduced to enhance data privacy and verification processes within the cloud and blockchain environment. The evaluation sheds light on the framework's viability in real-world cloud environments, emphasizing its efficiency in mitigating quantum threats.
  arXiv  Detail & Related papers  (2024-07-09T15:53:04Z)
• Enhancing Trust and Privacy in Distributed Networks: A Comprehensive Survey on Blockchain-based Federated Learning [51.13534069758711]
  Decentralized approaches like blockchain offer a compelling solution by implementing a consensus mechanism among multiple entities. Federated Learning (FL) enables participants to collaboratively train models while safeguarding data privacy. This paper investigates the synergy between blockchain's security features and FL's privacy-preserving model training capabilities.
  arXiv  Detail & Related papers  (2024-03-28T07:08:26Z)
• The Security Performance Analysis of Blockchain System Based on Post-Quantum Cryptography -- A Case Study of Cryptocurrency Exchanges [0.0]
  The study proposes a post-quantum cryptography (PQC)-based blockchain system to enhance security by addressing and improving each identified weakness. The efficiency of the Dilithium algorithm, a PQC digital signature algorithm, in producing wallets, generating signatures, and verifying signatures surpasses that of ECDSA in the current blockchain system.
  arXiv  Detail & Related papers  (2024-01-23T05:21:58Z)
• 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)
• Demonstration of quantum-digital payments [36.136619420474766]
  We show how quantum light can secure daily digital payments by generating inherently unforgeable quantum cryptograms. Unlike previously proposed protocols, our solution does not depend on long-term quantum storage or trusted agents and authenticated channels. It is practical with near-term technology and may herald an era of quantum-enabled security.
  arXiv  Detail & Related papers  (2023-05-23T20:20:14Z)
• When Quantum Information Technologies Meet Blockchain in Web 3.0 [86.91054991998273]
  We introduce a quantum blockchain-driven Web 3.0 framework that provides information-theoretic security for decentralized data transferring and payment transactions. We discuss the potential applications and challenges of implementing quantum blockchain in Web 3.0.
  arXiv  Detail & Related papers  (2022-11-29T05:38:42Z)
• Regulation conform DLT-operable payment adapter based on trustless - justified trust combined generalized state channels [77.34726150561087]
  Economy of Things (EoT) will be based on software agents running on peer-to-peer trustless networks. We give an overview of current solutions that differ in their fundamental values and technological possibilities. We propose to combine the strengths of the crypto based, decentralized trustless elements with established and well regulated means of payment.
  arXiv  Detail & Related papers  (2020-07-03T10:45:55Z)

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.