Sciweavers

Share
IPPS
2009
IEEE

Treat-before-trick : Free-riding prevention for BitTorrent-like peer-to-peer networks

10 years 1 months ago
Treat-before-trick : Free-riding prevention for BitTorrent-like peer-to-peer networks
In P2P file sharing systems, free-riders who use others’ resources without sharing their own cause system-wide performance degradation. Existing techniques to counter freeriders are either complex (and thus not widely deployed), or easy to bypass (and therefore not effective). This paper proposes a simple yet highly effective free-rider prevention scheme using (t, n) threshold secret sharing. A peer must upload encrypted file pieces to obtain the subkeys necessary to decrypt a file which has been downloaded, i.e., subkeys are swapped for file pieces. No centralized monitoring or control is required. This scheme is called “treat-beforetrick” (TBeT). TBeT penalizes free-riding with increased file completion times (time to download file and necessary subkeys). TBeT counters known free-riding strategies, incentivizes peers to donate more upload bandwidth, and increases the overall system capacity for compliant peers. TBeT has been implemented as an extension to BitTorrent, and...
Kyuyong Shin, Douglas S. Reeves, Injong Rhee
Added 24 May 2010
Updated 24 May 2010
Type Conference
Year 2009
Where IPPS
Authors Kyuyong Shin, Douglas S. Reeves, Injong Rhee
Comments (0)
books