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Redactable Blockchain - Leveraging Chameleon Hash Functions for a GDPR Compliant Blockchain

  • With the increasing usage of blockchain technology, legal challenges such as GDPR compliance arise. Especially the right of erasure is considered challenging as blockchains are tamperproof by design. Several approaches investigated possibilities to weaken the tamperproof aspect of blockchains in favor of GDPR compliance. This paper presents several approaches, then focuses on chameleon hash functions by evaluating the possibility to use these specific functions in a private blockchain. The goal of the built system is to take a step towards the digitization of the bill of lading used in international trade. This paper describes the developed software as well as the core considerations around the system such as network design or block structure.

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Metadaten
Author:Hauke Precht, Jorge Marx Gómez
DOI:https://doi.org/10.48446/opus-11867
ISSN:1437-7624
Parent Title (German):Konferenzband zum Scientific Track der Blockchain Autumn School 2020
Publisher:Hochschule Mittweida
Place of publication:Mittweida
Document Type:Conference Proceeding
Language:English
Year of Completion:2020
Publishing Institution:Hochschule Mittweida
Contributing Corporation:Carl von Ossietzky Universität Oldenburg
Release Date:2021/01/27
Tag:GDPR; bill of lading; redactable blockchain
GND Keyword:Blockchain; Konnossement
Page Number:5
First Page:66
Last Page:70
Open Access:Frei zugänglich
Licence (German):License LogoEs gilt das UrhG