NDLI: Anonymous but authorized transactions supporting selective traceability

Content Provider	IEEE Xplore Digital Library
Author	Slamanig, Daniel Rass, Stefan
Copyright Year	2010
Description	Author affiliation: Department of Medical Information Technology, Healthcare IT & Information Security Group, Carinthia University of Applied Sciences, 9020 Klagenfurt, Austria (Slamanig, Daniel) \|\| Institute of Applied Informatics, System Security Group, Klagenfurt University, 9020 Klagenfurt, Austria (Rass, Stefan)
Abstract	While privacy was more or less neglected in the early days of the Internet, in recent years it has emerged to be a hot topic in computer security research. Among other reasons, since the use of the Internet is becoming more and more ubiquitous, cloud computing emerges and consequently users provide a lot of information to potentially untrusted third parties. In this paper we propose an approach which provides a means for users to anonymously conduct transactions with a service-provider such that those transactions can neither be linked to a specific user nor linked together. At the same time, a service-provider can be sure that only authorized users are able to conduct transactions. In particular, we bring together the concepts of anonymous authentication from public-key encryption and anonymous as well as unlinkable token based transactions in order to profit from the advantages of the two single approaches. Since full anonymity is usually not desirable, we provide mechanism to identify misbehaving anonymous users behind transactions. More precisely, we realize selective traceability, which allows revocation of the anonymity of a suspicious users along with the identification of all of her transactions, without violating the privacy of all remaining users.
Starting Page	1
Ending Page	10
File Size	115428
Page Count	10
File Format	PDF
ISBN	9789898425188
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-07-26
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	INSTICC
Subject Keyword	Protocols Blind signatures Anonymity Probabilistic logic Encryption Registers Public-key encryption Privacy Anonymous transactions Public key Authentication One-show tokens Anonymous authentication
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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