A blockchain-based access control scheme

Several important lessons learnt from the design and usage of the system so far in- clude: (1) The DCPAC ontology in conjunction with ASO has proven sufficiently expressive

In this paper, we propose a solution based on Ethereum smart contracts for the access control on distributed information in a smart city scenario. In general, enforcing access

The Tamago platform provides tools for static verifications of these contracts, generation of test scenarios from the abstract contracts and monitoring facilities for dynamic

Some existing open source approaches to (RDF) graph-level access control over SPARQL, such as the Shi3ld component [1] produced in the DataLift project 8 , are based on enumeration

We then proceed to showing that query rewriting is a complete tool for proving PTime data complexity in pOBDA, in the fol- lowing sense: we replace DL-Lite with the strictly

In this article, we will show how the use of a data sharing algebra to write a variety of access control plans (ACP) can overcome these current limitations of OSN

Mastro manages OBDA systems in which the ontology is specified in a logic of the DL-Lite family of Description Logics specifically tailored to ontology-based data access, and

We believe that Linked Data as a paradigm is very much suitable for knowledge shar- ing in developing countries. Linked Data approaches provide a particularly light-weight way to