A simple fingerprinting scheme for large user grou

Authors: Defa Hu Qiaoliang Li

Publish Date: 2011/01/14

Volume: 5, Issue: 2, Pages: 163-168

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Abstract

Digital fingerprinting is an emerging technology to protect multimedia data from piracy where each distributed copy is labeled with unique identification information In coded fingerprinting each codeword of the anticollusion code is used to represent a user’s fingerprint In realworld applications the number of potential users can be very large and hence the used anticollusion code should be easy to construct and have as many codewords as possible This paper proposes a simple coded fingerprinting scheme where the anticollusion code is constructed with an identity matrix The main advantage of our scheme is its simplicity as a large number of fingerprints can easily be generated to accommodate a large number of users To improve collusion resistance some transformations are performed on the original fingerprint in the embedding phase and the corresponding inverse transformations are performed on the extracted sequence in the detection phase

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