@conference{PPICOPNET,
author = "Gianpiero Costantino and Fabio Martinelli and Paolo Santi",
abstract = "Message forwarding is a fundamental brick to spread information among users in opportunistic networks. In this paper, we consider the recently proposed interest-casting networking primitive for opportunistic networks, according to which a packet generated by a sender should be delivered to all users in the network -- potentially unknown to the sender -- sharing similar interests. However, the current implementation of interest-casting assume users exchange their interest profiles to take forwarding decisions, thus revealing very sensitive in- formation to strangers. In this work, we approach for the first time the problem of designing an interest-casting protocol while not revealing sensitive information during the forwarding and message delivery process. In particular, we present a privacy- preserving mechanism based on the well-known Millionaires' problem allowing users to discover whether they have simi- lar interests without disclosing private information. Based on this mechanism, we propose four different privacy-preserving forwarding protocols to realise interest-casting in opportunistic networks, and we compare their performance on a real-world mobility trace.",
booktitle = "IEEE Wireless Communications and Networking Conference (WCNC 2012)",
keywords = "Wireless Networks, The Millionaire's Problem, Simulations, Security Attacks",
month = "April",
note = "CNR; Nessos; B; citations 6",
publisher = "IEEE ",
title = "{P}rivacy-{P}reserving {I}nterest-{C}asting in {O}pportunistic {N}etworks",
year = "2012",
}