NDLI: Generalized traitor tracing for nested codes

Content Provider	IEEE Xplore Digital Library
Author	Varna, A.L. Hongxia Jin
Copyright Year	2008
Description	Author affiliation: Dept. of ECE, Maryland Univ., College Park, MD (Varna, A.L.)
Abstract	Nested or concatenated codes are often used for traitor tracing schemes as they require a small symbol size to accommodate a given number of users. Typically, tracing is performed on each layer of the code separately - tracing is first performed on the inner code and the information obtained is subsequently used to perform tracing on the outer code. In such situations, the collusion resistance is determined by the minimum of the coalition sizes that can be tolerated by the individual codes. Due to the small symbol size, the inner codes can tolerate a smaller number of colluders resulting in a small overall collusion resistance. Further, recovering more attacked versions does not enable identification of larger coalitions. To improve the collusion resistance, in this paper we propose to pass soft information from the inner code tracing to the outer code tracing. We demonstrate through simulations and formal analysis that the proposed technique improves the collusion resistance of tracing systems employing nested codes.
Starting Page	561
Ending Page	564
File Size	98361
Page Count	4
File Format	PDF
ISBN	9781424425709
DOI	10.1109/ICME.2008.4607496
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-06-23
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Motion pictures Data security Detectors Decoding Resistance Optimization Multimedia communication Multimedia Content Protection Traitor Tracing Nested Codes
Content Type	Text
Resource Type	Article

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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
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