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2009 | OriginalPaper | Chapter
An Improvement of Short 2-Secure Fingerprint Codes Strongly Avoiding False-Positive
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A 2-secure fingerprint code proposed by Nuida et al. (IEEE CCNC 2007) has very desirable characteristics that false-positive never occur under Marking Assumption against at most two pirates and that false-positive is very unlikely to occur even in the absence of these assumptions. However, its code length could be further reduced; in fact, another 2-secure code proposed in the same work has significantly shorter code length. In this article, we demonstrate how to mix those two codes to inherit both of their advantages. The resulting 2-secure codes have short lengths, and possess the above characteristics whenever the number of pirates (may exceed two but) is not too large.