Section: New Results

Data sharing model for the Personal Cloud (Axis 2)

Participants : Nicolas Anciaux [correspondent] , Philippe Pucheral, Guillaume Scerri, Paul Tran Van, Baptiste Crepin.

In the PDMS context, new sharing models are needed to help end-users controlling the sharing policies under use. We proposed an architecture to produce authorizations satisfying users’ sharing desires without having to trust the underlying producing these authorizations in the PhD thesis of Paul Tran-Van [11] and we demonstrated the solution at EDBT'18 [14]. We currently investigate the case of a data sharing system producing what we call 'zero-knowledge permissions', i.e., a set of authorizations produced by an untrusted sharing model which is supposed to reveal no information at all about a given subset of documents in the user space.