Blockchain Based Access Control

Maesa, Damiano Di Francesco; Mori, Paolo; Ricci, Laura

doi:10.1007/978-3-319-59665-5_15

Cited by 198 publications

(56 citation statements)

References 7 publications

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“…An example would be a data access token, which the owner of a dataset (such as a health record or credit history) issues to a third party wishing to access some of the data. The token functions like a key to the datastore, and transactions of that token are recorded on a blockchain ledger to keep track of who has been granted permission and access (Maesa et al, 2017).…”

Section: The Interplay Of Identifiers Personas and Key Pairs On Thementioning

confidence: 99%

Self-Sovereign Identity in a Globalized World: Credentials-Based Identity Systems as a Driver for Economic Inclusion

Wang¹,

Filippi

2020

Front. Blockchain

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After introducing key concepts and definitions in the field of digital identity, this paper will investigate the benefits and drawbacks of existing identity systems on the road toward achieving self-sovereign identity. It will explore, in particular, the use of blockchain technology and biometrics as a means to ensure the "unicity" and "singularity" of identities, and the associated challenges pertaining to the security and confidentiality of personal information. The paper will then describe an alternative approach to self-sovereign identity based on a system of blockchain-based attestations, claims, credentials, and permissions, which are globally portable across the life of an individual. While not dependent on any particular government or organization for administration or legitimacy, credentials and attestations might nonetheless include government-issued identification and biometrics as one of many indicia of identity. Such a solution-based on a recorded and signed digital history of attributes and activities-best approximates the fluidity and granularity of identity, enabling individuals to express only specific facets of their identity, depending on the parties with whom they wish to interact. To illustrate the difficulties inherent in the implementation of a self-sovereign identity system in the real world, the paper will focus on two blockchain-based identity solutions as case studies: (1) Kiva's identity protocol for building credit history in Sierra Leone, and (2) World Food Programme's Building Blocks program for delivering cash aid to refugees in Jordan. Finally, the paper will explore how the combination of blockchain-based cryptocurrencies and self-sovereign identity may contribute to promoting greater economic inclusion. With digital transactions functioning as identity claims within an ecosystem based on self-sovereign identity, new business models might emerge, such as identity insurance schemes, along with the emergence of value-stable cryptocurrencies ("stablecoins") functioning as local currencies.

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Section: The Interplay Of Identifiers Personas and Key Pairs On Thementioning

confidence: 99%

Self-Sovereign Identity in a Globalized World: Credentials-Based Identity Systems as a Driver for Economic Inclusion

Wang¹,

Filippi

2020

Front. Blockchain

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“…Accordingly, the contract's interfaces are based upon a Role-based Access Control (RBAC) scheme. We do not describe the access control contract in detail here, as there are other works describing blockchain-based access control schemes [5].…”

Section: Capabilitiesmentioning

confidence: 99%

A Distributed Ledger Approach to Digital Twin Secure Data Sharing

Dietz

Putz

Pernul

2019

Data and Applications Security and Privacy XXXIII

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The Digital Twin refers to a digital representation of any real-world counterpart allowing its management (from simple monitoring to autonomy). At the core of the concept lies the inclusion of the entire asset lifecycle. To enable all lifecycle parties to partake, the Digital Twin should provide a sharable data base. Thereby, integrity and confidentiality issues are pressing, turning security into a major requirement. However, given that the Digital Twin paradigm is still at an early stage, most works do not consider security yet. Distributed ledgers provide a novel technology for multi-party data sharing that emphasizes security features such as integrity. For this reason, we examine the applicability of distributed ledgers to secure Digital Twin data sharing. We contribute to current literature by identifying requirements for Digital Twin data sharing in order to overcome current infrastructural challenges. We furthermore propose a framework for secure Digital Twin data sharing based on Distributed Ledger Technology. A conclusive use case demonstrates requirements fulfillment and is followed by a critical discussion proposing avenues for future work.

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“…With the widespread use of DLT, and, more specifically, blockchain, novel approaches to resolve the access control problematic appeared using this paradigm, including in e-Health scenarios. Maesa et al [20] proposes a blockchainbased access control, implementing ABAC on top of the blockchain technology, following the XACML reference architecture. This approach validates itself through a reference implementation on top of Bitcoin.…”

Section: Blockchain Applied To Access Controlmentioning

confidence: 99%

A Blockchain-Based Scheme for Access Control in e-Health Scenarios

Dias¹,

Reis²,

Ferreira³

et al. 2019

Proceedings of the Tenth International Conference on Soft Computing and Pattern Recognition (SoCPaR 2018)

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Access control is a crucial part of a system's security, restricting what actions users can perform on resources. Therefore, access control is a core component when dealing with e-Health data and resources, discriminating which is available for a certain party. We consider that current systems that attempt to assure the share of policies between facilities are prone to system's and network's faults and do not assure the integrity of policies lifecycle. By approaching this problem with the use of a distributed ledger, namely a consortium blockchain, where the operations are stored as transactions, we ensure that the different facilities have knowledge about all the parties that can act over the e-Health resources while maintaining integrity, auditability, authenticity, and scalability.

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Blockchain Based Access Control

Cited by 198 publications

References 7 publications

Self-Sovereign Identity in a Globalized World: Credentials-Based Identity Systems as a Driver for Economic Inclusion

Self-Sovereign Identity in a Globalized World: Credentials-Based Identity Systems as a Driver for Economic Inclusion

A Distributed Ledger Approach to Digital Twin Secure Data Sharing

A Blockchain-Based Scheme for Access Control in e-Health Scenarios

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