NDLI: A Traceable and Pseudonymous P2P Information Distribution System

Content Provider	IEEE Xplore Digital Library
Author	Tsujio, N. Okabe, Y.
Copyright Year	2015
Description	Author affiliation: Grad. Sch. of Infomatics, Kyoto Univ., Kyoto, Japan (Tsujio, N.) \|\| Acad. Center for Comput. & Media Studies, Kyoto Univ., Kyoto, Japan (Okabe, Y.)
Abstract	Anyone can publish various kinds of information on the Internet almost freely, but in some cases such information distribution is inhibited by the authorities. In order to resist such censorship, there have been developed many anonymous information distribution systems such as Free net and Tor, but some people argue that such a system may also be a hotbed of crime since scrupulous anonymity disturbs investigations. In this paper, an article distribution system is proposed, which protects pseudonymity of users from surveillance by the authorities as with existing anticensorship systems. As a novel point, the proposed system allows a user to trace the publisher of an article by cooperation of the users who have relayed the article. This will suppress criminal acts abusing pseudonymity in the system. On the other hand, it is difficult to trace the publisher for a single government or an organization alone unless it obtains cooperation of multiple users. The proposed system will therefore be able to avoid authoritarian censorship or surveillance by the authorities. The system adopts P2P architecture, and a user can publish articles to other users like Netnews. A published article is relayed by node to node and spreads over the network of the system. In order to trace the publisher of an article, a user records a relaying log when he relays an article. A relaying log contains information about the predecessor from whom the user received the article. A user can trace the publisher by gathering relaying logs. Each user has responsibility to determine whether to disclose a relaying log or not, considering the content of the article. If all users along the path from the publisher agree to cooperate in gathering their logs, they will be able to trace to the publisher. The performance of the system is discussed in evaluation, how users' actions affect traceability, and what should users do if governments intervene in the system.
Starting Page	67
Ending Page	72
File Size	573547
Page Count	6
File Format	PDF
ISSN	07303157
e-ISBN	9781467365642
DOI	10.1109/COMPSAC.2015.215
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-01
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Peer-to-peer computing Government Relays Internet Censorship Surveillance Privacy information distribution peer-to-peer censorship privacy traceable
Content Type	Text
Resource Type	Article
Subject	Computer Science Applications Software

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