Charles W. O'Donnell Vinod Vaikuntanathan Information Leak in the Chord Lookup Protocol. 28-35 2004 conf/p2p/2004 Peer-to-Peer Computing http://csdl.computer.org/comp/proceedings/p2p/2004/2156/00/21560028abs.htm db/conf/p2p/p2p2004.html#ODonnellV04