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Groupchain: A Blockchain Model with Privacy-preservation and Supervision

Published: 06 August 2020 Publication History

Abstract

Blockchain technology is a type of decentralized technology that enables secure and trusted operations to be performed in untrusted environments. Privacy preservation and supervision are contradictions in decentralized environments. First, to reach a consensus in a decentralized environment, each node of the blockchain holds all of the ledger data, but this brings a huge risk of privacy leakage; alternately, the ledger data is encrypted with a hash to ensure security, making it difficult for regulatory authorities to regulate the blockchain through legal methods. This paper proposes a blockchain model based on a Group signature idea with the permission blockchain as the underlying architecture, aiming to neutralize the contradiction between privacy preservation and supervision in the blockchain technology. This paper designs three schemes entitled GroupSig, GroupCT, and Semi-Stealthaddress to achieve the goals we set. Finally, we analyze the security of Groupchain and evaluate the efficiency of the corresponding scheme.

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  • (2023)A blockchain‐based user authorization management method for information exchanging of federation of industry and commerceIET Blockchain10.1049/blc2.12052Online publication date: 10-Oct-2023
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  1. Groupchain: A Blockchain Model with Privacy-preservation and Supervision

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    cover image ACM Other conferences
    HP3C 2020: Proceedings of the 2020 4th International Conference on High Performance Compilation, Computing and Communications
    June 2020
    191 pages
    ISBN:9781450376914
    DOI:10.1145/3407947
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

    In-Cooperation

    • Xi'an Jiaotong-Liverpool University: Xi'an Jiaotong-Liverpool University
    • City University of Hong Kong: City University of Hong Kong
    • Guangdong University of Technology: Guangdong University of Technology

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    Association for Computing Machinery

    New York, NY, United States

    Publication History

    Published: 06 August 2020

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    Author Tags

    1. Blockchain
    2. Group Signature
    3. Privacy Preservation
    4. Supervision

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    Cited By

    View all
    • (2024)Leveraging dual‐blockchain collaboration for logistics supply chain supervisionIET Blockchain10.1049/blc2.12079Online publication date: 26-May-2024
    • (2023)A Regulatable Mechanism for Transacting Data AssetsIEEE Internet of Things Journal10.1109/JIOT.2023.330603010:24(21615-21632)Online publication date: 15-Dec-2023
    • (2023)A blockchain‐based user authorization management method for information exchanging of federation of industry and commerceIET Blockchain10.1049/blc2.12052Online publication date: 10-Oct-2023
    • (2022)Towards A Smart Regulatory Compliance, The Capabilities of RegTech and SupTech2022 International Conference on Information Technology Systems and Innovation (ICITSI)10.1109/ICITSI56531.2022.9970801(300-309)Online publication date: 8-Nov-2022

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