A secure file sharing service for distributed computing environments

  • Authors:
  • Aniello Castiglione;Luigi Catuogno;Aniello Del Sorbo;Ugo Fiore;Francesco Palmieri

  • Affiliations:
  • Dipartimento di Informatica, Università di Salerno, Fisciano, Italy 84084;Dipartimento di Informatica, Università di Salerno, Fisciano, Italy 84084;Dipartimento di Informatica, Università di Salerno, Fisciano, Italy 84084;Centro di Ateneo per i Servizi Informativi, Università di Napoli Federico II, Napoli, Italy 80126;Dipartimento di Ingegneria Industriale e dell'Informazione, Seconda Università di Napoli, Aversa, Italy 81031

  • Venue:
  • The Journal of Supercomputing
  • Year:
  • 2014

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Abstract

Distributed cryptographic file systems enable file sharing among their users and need the adoption of a key management scheme for the distribution of the cryptographic keys to authorized users according to their specific degree of trust. In this paper we describe the architecture of a basic secure file sharing facility relying on a multi-party threshold-based key-sharing scheme that can be overlaid on top of the existing stackable networked file systems, and discuss its application to the implementation of distributed cryptographic file systems. It provides flexible access control policies supporting multiple combination of roles and trust profiles. A proof of concept prototype implementation within the Linux operating system framework demonstrated its effectiveness in terms of performance and security robustness.