Digital fingerprinting protects multimedia content from illegal redistribution by uniquely
marking every copy of the content distributed to each user. The collusion attack is a powerful …

When digital information is widely distributed in some fashion, the distributor would often like
to trace the source of pirate copies of the information. The paper surveys some of the …

We present some improved bounds on necessary conditions for separating hash families of
type {w, w} and type {w, w-1}. In particular, these bounds apply to secure frame-proof codes …

A c-secure fingerprint code is called robust if it is secure against a limited number of bit
erasure in undetectable positions in addition to usual collusion attacks. In this article, we …

In this paper, we propose a variant of Tardos code which is practical for various applications
against a small number of pirates. As an example of our results, for c= 5, the code length …

Digital fingerprinting is a tool to protect multimedia content from illegal redistribution by
uniquely marking copies of the content distributed to each user. Collusion attack is a …

Digital fingerprinting is a technique for identifying unauthorized copy and tracing back to its
user. The distributor marks each individual copy with a unique fingerprint. At present, the …

Digital fingerprinting is a promising approach to protect multimedia contents from
unauthorized redistribution. Whereas, large scale and high dimensionality make existing …

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 …

Abstract $\Gamma $ is a $ q $-ary code of length $ L $. A word $ w $ is called a descendant
of a coalition of codewords $ w^{(1)}, w^{(2)},\dots, w^{(t)} $ of $\Gamma $ if at each position …