A Correctable Public Blockchain

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem KonferenzbandForschungBegutachtung

Abstract

A key property of current blockchain solutions is the immutability of data stored in the blockchain. While this is a desired feature e.g. for crypto currencies, it can be a show stopper for other use cases that still require ex-post correction or removal of stored data. Existing proposals for redactable blockchains address this issue, but support the correction of specific types of stored data only. To overcome these limitations, we propose and introduce a correctable blockchain architecture that supports correction of arbitrary data. The proposed solution uses a consensus-enforced voting mechanism for decentralized decision making on requested data corrections. Information on applied corrections is stored in a second chain, which ensures that the corrected chain can still be validated successfully. We have verified the security of the proposed correctable blockchain architecture by means of a detailed security analysis. Furthermore, we have evaluated the proposed solution by means of a first reference implementation, which demonstrates the solution's feasibility. First experiments conducted with this reference implementation indicate that the added data-correction functionality has only negligible impacts on the overall performance.

Originalspracheenglisch
Titel2019 18th IEEE International Conference on Trust, Security and Privacy in Computing and Communications/13th IEEE International Conference on Big Data Science and Engineering, TrustCom/BigDataSE 2019
Herausgeber (Verlag)Institute of Electrical and Electronics Engineers
Seiten554-561
Seitenumfang8
ISBN (elektronisch)9781728127767
DOIs
PublikationsstatusVeröffentlicht - 1 Aug 2019
Veranstaltung18th IEEE International Conference On Trust, Security And Privacy In Computing And Communications/13th IEEE International Conference On Big Data Science And Engineering - Rotorua, Neuseeland
Dauer: 5 Aug 20198 Aug 2019

Konferenz

Konferenz18th IEEE International Conference On Trust, Security And Privacy In Computing And Communications/13th IEEE International Conference On Big Data Science And Engineering
KurztitelTrustCom/BigDataSE 2019
LandNeuseeland
OrtRotorua
Zeitraum5/08/198/08/19

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Schlagwörter

    ASJC Scopus subject areas

    • !!Computer Networks and Communications
    • Software
    • !!Information Systems and Management
    • !!Safety, Risk, Reliability and Quality
    • Artificial intelligence

    Dieses zitieren

    Marsalek, A., & Zefferer, T. (2019). A Correctable Public Blockchain. in 2019 18th IEEE International Conference on Trust, Security and Privacy in Computing and Communications/13th IEEE International Conference on Big Data Science and Engineering, TrustCom/BigDataSE 2019 (S. 554-561). [8887342] Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/TrustCom/BigDataSE.2019.00080