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Many unstructured peer to peer (P2P) systems rely on a Peer Sampling Service (PSS) that returns randomly sampled nodes from the population comprising the system. PSS protocols are often implemented using "gossiping" approaches in which connected nodes exchange their links in a randomized way. However, such services can be defeated easily by malicious nodes executing "hub attacks" which distort the PSS such that all nodes in the network, ultimately, only gain access to malicious nodes. From thisdoi:10.1109/saso.2007.32 dblp:conf/saso/JesiHS07 fatcat:ieioskds7zealhl6iwitsggx7i