de-linkability: a privacy-preserving constraint for safely outsourcing multimedia documents

Authors:
Bechara Al Bouna;Eliana J. Raad;Charbel Elia;Richard Chbeir;Ramzi Haraty
Affiliations:
Antonine University, Baabda, Lebanon;Bourgogne University, Dijon, France;Antonine University, Baabda, Lebanon;University of Pau and Adour, Countries, Pau, France;Lebanese American University, Beirut, Lebanon
Venue:
Proceedings of the Fifth International Conference on Management of Emergent Digital EcoSystems
Year:
2013

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Abstract

Outsourcing social multimedia documents is a growing practice among several companies in a way to shift their business globally. It is a cost-effective process where those companies tend to gain more profits disregarding eventual privacy risks. In fact, several case studies have showed that adversaries are capable of identifying individuals, whose identities need to be kept private, using the content of their multimedia documents. In this paper, we propose de-linkability, a privacy-preserving constraint to bound the amount of information outsourced that can be used to re-identify the individual. We also provide a sanitizing MD*-algorithm to enforce de-linkability and present a set of experiments to demonstrate its efficiency.