Error- and Collusion-Secure Fingerprinting for Digital Data

摘要: Fingerprinting means making copies of the same data identifiable by hiding additional information (a fingerprint) in data. Embedding can be done watermarking techniques, which are mainly a branch signal processing. Most methods, however, do not treat colluding adversaries who have obtained more than one copy, compare their copies, see differences and use this to make copy without fingerprint. Therefore, there cryptographic fingerprinting methods obtain collusion tolerance on top layer. But most important method Boneh Shaw excludes priori any errors layer, i.e., it is assumed that no changes fingerprint occur except those based from attacks. This stronger assumption what underlying schemes offer.