SPADS: Publisher Anonymization for DHT Storage
Pascal Felber, Martin Rajman, Etienne Rivière, Valerio Schiavoni & José Valerio
| Résumé |
Many distributed applications, such as collaborative Web mapping,
collaborative feedback and ranking, or bug reporting systems, rely
on the aggregation of privacy-sensitive information gathered from
human users. This information is typically aggregated at servers
and later used as the basis for some collaborative service.
Expecting that clients trust that the user-centric information will
not be used for malevolent purposes is not realistic in a fully
distributed setting where nodes are not under the control of a
single administrative domain. Moreover, most of the time the origin
of the data is of small importance when computing the aggregation
onto which these services are based. Trust problems can be evinced
by ensuring that the identity of the user is dropped before the
data can actually be used, a process called publisher
anonymization. Such a property shall be guaranteed even if a set of
servers is colluding to spy on some user. This also requires that
malevolent users cannot harm the service by sending any number of
items without being traceable due to publisher anonymization. Rate
limitation and decoupled authentication are the two mechanisms that
ensure that these cheating users have a limited impact on the
system. This paper presents SPADS, a system that interfaces to any
DHT and supports the three objectives of publisher anonymization,
rate limitation and decoupled authentication. The evaluation of a
deployed prototype on a cluster assesses its performance and small
footprint. |
| Mots-clés |
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| Citation | P. Felber, et al., "SPADS: Publisher Anonymization for DHT Storage," in Proceedings of the 10th IEEE International Conference on Peer-to-Peer Computing (P2P'10), Delft, Netherlands, 2010. |
| Type | Actes de congrès (Anglais) |
| Nom de la conférence | Proceedings of the 10th IEEE International Conference on Peer-to-Peer Computing (P2P'10) (Delft, Netherlands) |
| Date de la conférence | 25-8-2010 |
| Editeur commercial | IEEE |
| URL | http://dx.doi.org/10.1109/P2P.2010.5569985 |
| Liée au projet | MistNet: An Experimental Peer-to-peer Platform for the Cloud |