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INFOCOM
2010
IEEE

A Node-failure-resilient Anonymous Communication Protocol through Commutative Path Hopping

13 years 2 months ago
A Node-failure-resilient Anonymous Communication Protocol through Commutative Path Hopping
Abstract—With rising concerns on user privacy over the Internet, anonymous communication systems that hide the identity of a participant from its partner or third parties are highly desired. Existing approaches either rely on a relative small set of pre-selected relay servers to redirect the messages, or use structured peer-to-peer systems to multicast messages among a set of relay groups. The pre-selection approaches provide good anonymity, but suffer from node failures and scalability problem. The peer-to-peer approaches are subject to node churns and high maintenance overhead, which are the intrinsic problems of P2P systems. In this paper, we present CAT, a node-failure-resilient anonymous communication protocol. In this protocol, relay servers are randomly assigned to relay groups. The initiator of a connection selects a set of relay groups instead of relay servers to set up anonymous paths. A valid path consists of relay servers, one from each selected relay group. The initiator...
Fengjun Li, Bo Luo, Peng Liu, Chao-Hsien Chu
Added 28 Jan 2011
Updated 28 Jan 2011
Type Journal
Year 2010
Where INFOCOM
Authors Fengjun Li, Bo Luo, Peng Liu, Chao-Hsien Chu
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