NDLI: 4P: Performant private peer-to-peer file sharing

Content Provider	IEEE Xplore Digital Library
Author	Zeilemaker, N. Pouwelse, J. Sips, H.
Copyright Year	2014
Description	Author affiliation: Delft Univ. of Technol., Delft, Netherlands (Zeilemaker, N.; Pouwelse, J.; Sips, H.)
Abstract	In recent years fully decentralized file sharing systems were developed aimed at improving anonymity among their users. These systems provide typical file sharing features such as searching for and downloading files. However, elaborate schemes originally aimed at improving anonymity cause partial keyword matching to be virtually impossible, or introduce a substantial bandwidth overhead. In this paper we introduce 4P, a system that provides users with anonymous search on top of a semantic overlay. The semantic overlay allows users to efficiently locate files using partial keyword matching, without having to resort to an expensive flooding operation. Included into 4P are a number of privacy enhancing features such as probabilistic query forwarding, path uncertainty, caching, and encrypted links. Moreover, we integrate a content retrieval channel into our protocol allowing users to start downloading a file from multiple sources immediately without requiring all intermediate nodes to cache a complete copy. Using a trace-based dataset, we mimic a real-world query workload and show the cost and performance of search using six overlay configurations, comparing random, semantic, Gnutella, RetroShare, and OneSwarm to 4P. The state-of-the-art flooding based alternatives required approximately 10,000 messages to be sent per query, in contrast 4P only required 313. Showing that while flooding can achieve a high recall (more than 85% in our experiments) it is prohibitively expensive. With 4P we achieve a recall of 76% at a considerable reduction in messages sent.
Starting Page	1
Ending Page	10
File Size	380226
Page Count	10
File Format	PDF
ISBN	9781479962006
e-ISBN	9781479962013
DOI	10.1109/P2P.2014.6934311
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-09-08
Publisher Place	UK
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Semantics Cryptography Peer-to-peer computing Privacy Probabilistic logic Polynomials Bandwidth
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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