iNetSec 2009 – Open Research Problems in Network Security: by Raphael C. -W. Phan, John N. Whitley, David J. Parish

By Raphael C. -W. Phan, John N. Whitley, David J. Parish (auth.), Jan Camenisch, Dogan Kesdogan (eds.)

This e-book constitutes the refereed put up convention complaints of the IFIP WG 11.4 overseas Workshop, iNetSec 2009, held in Zurich, Switzerland, in April 2009.

The 14 revised complete papers offered have been rigorously reviewed and chosen from a number of submissions. The papers are geared up in topical sections on related to people; net 2.0; keeping assets; pervasive units; protocol protection; and privacy.

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Additional info for iNetSec 2009 – Open Research Problems in Network Security: IFIP WG 11.4 International Workshop, Zurich, Switzerland, April 23-24, 2009, Revised Selected Papers

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A credential is an assertion of a certified userattribute from another individual user or an organization authority. To mediate access, a CSP requests authorization decisions from a policy provider to protect shared content. The policy provider then acts as a policy decision point (PDP) which responds with authorization decisions based on the context of request and a set of pre-defined credentials and access policies. User-centric content sharing requires user-centric authentication and authorization mechanisms.

Thus, network nodes operated by people who are friends in the social network can leverage on this friendship relation to build trusted channels or to enforce cooperation in a self-organizing system such as an ad hoc network or a peer-to-peer application. The rest of this paper is divided into six sections: in section 2 we suggest Safebook, a privacy-preserving distributed architecture for an on-line social network that has been sketched in [7]. The design of Safebook is governed by two principles: – avoiding centralized control through a de-centralized peer-to-peer architecture; – leverage social trust relationships from the social network in achieving security and privacy as part of the social network system.

Net/anonbib Leveraging Social Links for Trust and Privacy in Networks 35 filesystem, where nodes lying on a path cache the data provided as an answer to the requester, in Safebook members’ data is cached only by a selected subset of friends, thus decreasing the overall number of replica without penalizing data access, as explained in section 3. Similarly to Freenet, GNUnet [3] aims at anonymous P2P networking thanks to indirection techniques. However GNUnet adopts flooding, that introduces intolerable delays for an online social network application like Safebook.

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