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ZKP-Based Audit for Blockchain Systems Managing Central Bank Digital Currency

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10.3311/MINISY2022-018
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  • BME MIT PhD Minisymposium, 2022, 29th [18]
Abstract
Central Bank Digital Currency (CBDC) systems are being developed around the world and production solutions can be expected in the near future. Should a central bank allow handling of CBDC on a ledger that is not under its supervision (via platform bridging), it may wish to specify certain conformance requirements regarding the transactions. We propose a novel audit scheme based on Zero-Knowledge Proofs, which allows the operator of the bridged ledger to prove its compliance to such requirements, without revealing details about the transactions (such as the exact participants, the direction of the transfer, or the transferred value). This scheme aims to resolve the conflict between banks having to audit how CBDC is used on the bridged blockchain and consortia trying to keep sensitive data private.
Title
ZKP-Based Audit for Blockchain Systems Managing Central Bank Digital Currency
Author
Péter, Bertalan Zoltán
Kocsis, Imre
Date of issue
2022
Access level
Open Access
Copyright owner
Budapest University of Technology and Economics, Department of Measurement and Information Systems
Conference title
29th Minisymposium of the Department of Measurement and Information Systems
Conference place
Budapest, Hungary
Conference date
2022.02.07-2022.02.08.
Language
en
Page
70 - 73
Subject
blockchain, audit, central bank digital currency, zero-knowledge proof
Version
Kiadói változat
Identifiers
DOI: 10.3311/MINISY2022-018
Title of the container document
Proceedings of the 29th Minisymposium
ISBN, e-ISBN
978-963-421-872-2
Document type
könyvfejezet
Document genre
Konferenciacikk
University
Budapest University of Technology and Economics
Faculty
Faculty of Electrical Engineering and Informatics
Department
Department of Measurement and Information Systems

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