Inference Control in Data Integration Systems

Secure data outsourcing in presence of the inference problem: issues and directions

“…Data outsourcing and the inference problem is a research field that researchers have begun to investigate few years ago (Biskup et al, 2011;de Mantaras & Saina, 2004;di Vimercati et al, 2014;Haddad et al, 2014;Sayah et al, 2015;Sellami et al, 2015;Turan et al, 2017Turan et al, , 2018. Inference leakage is recognized as a major barrier to cloud computing and other data outsourcing or Database-As-a-Service arrangements.…”

“…Inference control in cloud integration systems has been investigated in the last decade through the work of Haddad et al (2014), Sayah et al (2015), Sellami et al (2015). In such systems, a mediator is defined as a unique entry point to the distributed data sources.…”

A Survey Study on the Inference Problem in Distributed Environment (S)

“…Inference control in data integration systems have been investigated in the last decade through the works in [12,17,18]. In such systems, a mediator is defined as a unique entry point to the distributed data sources.…”

“…Complying with source policies means that a prohibited access at the source level should be also prohibited at the global level. [12,17,18] have demonstrated that despite the generation of a global policy at the mediator level that synthesizes and enforces the back-end data sources policies, security breaches still possible via inference channel produced by semantic constraints. The problem is that the designer of the system cannot anticipates the inference channels that arise due to the dependencies that appear at the mediator level.…”

“…The authors of [18] have inspired from [12] to propose an approach aiming to control inference in data integration systems. The proposed methodology resort to formal concept analysis as a formal framework to reason about authorization rules and functional dependencies as a source of inference.…”