Conference paper Open Access

DWH-DIM: A Blockchain Based Decentralized Integrity Verification Model for Data Warehouses

Bergers, Jeroen; Shi, Zeshun; Korsmit, Ken; Zhiming Zhao

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    <subfield code="u">University of Amsterdam</subfield>
    <subfield code="a">Shi, Zeshun</subfield>
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    <subfield code="a">Bergers, Jeroen</subfield>
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    <subfield code="a">DWH-DIM: A Blockchain Based Decentralized Integrity Verification Model for Data Warehouses</subfield>
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    <subfield code="a">&lt;p&gt;Data manipulation is often considered a serious&lt;/p&gt;

&lt;p&gt;problem in industrial applications as data tampering can lead&lt;/p&gt;

&lt;p&gt;to inaccurate financial reporting or even a corporate security&lt;/p&gt;

&lt;p&gt;crisis. A correct representation of company data is essential&lt;/p&gt;

&lt;p&gt;for the companies&amp;rsquo; core business processes and is requested&lt;/p&gt;

&lt;p&gt;by governments and investors. However, the current solution,&lt;/p&gt;

&lt;p&gt;third-party auditing, is expensive and cannot be fully trusted.&lt;/p&gt;

&lt;p&gt;In this paper, we present the Data Warehouse Decentralized&lt;/p&gt;

&lt;p&gt;Integrity Model (DWH-DIM) to validate the integrity of the&lt;/p&gt;

&lt;p&gt;data warehouse and replace the current process. To address&lt;/p&gt;

&lt;p&gt;the challenge that the existing distributed integrity verification&lt;/p&gt;

&lt;p&gt;models cannot handle GDPR and are limited by scalability,&lt;/p&gt;

&lt;p&gt;our model uses a distributed file system to store attributes that&lt;/p&gt;

&lt;p&gt;can be used for the integrity verification task. The blockchain&lt;/p&gt;

&lt;p&gt;further confirms the authenticity of the files. Based on the&lt;/p&gt;

&lt;p&gt;proposed model, we present a detailed implementation of the&lt;/p&gt;

&lt;p&gt;DWH-DIM tool. The implementation is tested with a use case&lt;/p&gt;

&lt;p&gt;and several benchmarks. Experimental results demonstrate that&lt;/p&gt;

&lt;p&gt;our proposed model is feasible and meets the requirement for&lt;/p&gt;

&lt;p&gt;certificate warehouse data.&lt;/p&gt;</subfield>
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    <subfield code="a">10.1109/Blockchain53845.2021.00037</subfield>
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