23-24 April 2009, Zurich, Switzerland / Also published in IFIP "Advances in Information and Communication Technology", Vol 309, ISSN: 1868-4238
Existing on-line social networks (OSN) such as Facebook suffer from several weaknesses regarding privacy and security due to their inherent handling of personal data. As pointed out in [4], a preliminary analysis of existing OSNs shows that they are subject to a number of vulnerabilities, ranging from cloning legitimate users to sybil attacks through privacy violations. Starting from these OSN vulnerabilities as the rst step of a broader research activity, we came up with a new approach that is very promising in re-visiting security and privacy problems in distributed systems and networks. We suggest a solution that both aims at avoiding any centralized control and leverages on the real life trust between users, that is part of the social network application itself. An anonymization technique based on multi-hop routing among trusted nodes guarantees privacy in data access and, generally speaking, in all the OSN operations.
23-24 April 2009, Zurich, Switzerland / Also published in IFIP "Advances in Information and Communication Technology", Vol 309, ISSN: 1868-4238 and is available at : http://dx.doi.org/10.1007/978-3-642-05437-2_3