NDLI: Soft blocking: flexible blocker tags on the cheap

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Soft blocking: flexible blocker tags on the cheap

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Soft blocking: flexible blocker tags on the cheap

Content Provider	ACM Digital Library
Author	Juels, Ari Brainard, John
Abstract	A "blocker" tag is a privacy-enhancing radio-frequency identification (RFID) tag. It operates by interfering with the protocol in which a reader communicates individually with other RFID tags. While inexpensive to manufacture in quantity, blockers are nonetheless special-purpose devices, and thus introduce level of complexity that may pose an obstacle to their deployment. We propose a variant on the blocker concept that we call soft blocking. This involves software (or firmware) modules that offer a different balance of characteristics than ordinary blockers. Soft blocking offers somewhat weaker privacy enforcement that is essentially voluntary or internally auditable (much like P3P). It has the significant advantage, however, of relying on standard (or very slightly modified) RFID tags. Additionally, soft blocking offers the possibility of flexible privacy policies in which partial or scrubbed data is revealed about "private" tags, in lieu of the all-or-nothing policy enforced by a blocker. We show, moreover, how the correct functioning of a soft-blocker system may be rendered externally auditable with minor modifications to the basic tag-reading protocol. We also briefly discuss the special, attractive approach of unblocking, a soft-blocking variant that permits an "opt-in" approach to consumer privacy.
Starting Page	1
Ending Page	7
Page Count	7
File Format	PDF
ISBN	1581139683
DOI	10.1145/1029179.1029181
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2004-10-28
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Privacy Blocker tags Rfid tags Tree-walking Aloha
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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