Watermarking of uncompressed and compressed video
Signal Processing
Improved Boneh-Shaw Content Fingerprinting
CT-RSA 2001 Proceedings of the 2001 Conference on Topics in Cryptology: The Cryptographer's Track at RSA
Collusion Secure q-ary Fingerprinting for Perceptual Content
DRM '01 Revised Papers from the ACM CCS-8 Workshop on Security and Privacy in Digital Rights Management
Optimal probabilistic fingerprint codes
Proceedings of the thirty-fifth annual ACM symposium on Theory of computing
Digital rights management for content distribution
ACSW Frontiers '03 Proceedings of the Australasian information security workshop conference on ACSW frontiers 2003 - Volume 21
Anti-collusion fingerprinting for multimedia
IEEE Transactions on Signal Processing
Collusion-Resistant Video Fingerprinting for Large User Group
IEEE Transactions on Information Forensics and Security
Joint coding and embedding techniques for MultimediaFingerprinting
IEEE Transactions on Information Forensics and Security
Collusion-secure fingerprinting for digital data
IEEE Transactions on Information Theory
IEEE Transactions on Information Theory
On the capacity game of private fingerprinting systems under collusion attacks
IEEE Transactions on Information Theory
Image-adaptive watermarking using visual models
IEEE Journal on Selected Areas in Communications
Secure spread spectrum watermarking for multimedia
IEEE Transactions on Image Processing
A mathematical analysis of the DCT coefficient distributions for images
IEEE Transactions on Image Processing
Optimal differential energy watermarking of DCT encoded images and video
IEEE Transactions on Image Processing
Forensic analysis of nonlinear collusion attacks for multimedia fingerprinting
IEEE Transactions on Image Processing
Anti-collusion forensics of multimedia fingerprinting using orthogonal modulation
IEEE Transactions on Image Processing
Fingerprint multicast in secure video streaming
IEEE Transactions on Image Processing
Impact of rounding error on spread spectrum fingerprinting scheme
IEEE Transactions on Information Forensics and Security
A high capacity and strong robust fingerprinting for compressed images
Computers and Electrical Engineering
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Digital fingerprinting is a technique to deter unauthorized redistribution of multimedia content by embedding a unique identifying signal in each legally distributed copy. The embedded fingerprint can later be extracted and used to trace the originator of an unauthorized copy. A group of users may collude and attempt to create a version of the content that cannot be traced back to any of them. As multimedia data is commonly stored in compressed form, this paper addresses the problem of fingerprinting compressed signals. Analysis is carried out to show that due to the quantized nature of the host signal and the embedded fingerprint, directly extending traditional fingerprinting techniques for uncompressed signals to the compressed case leads to low collusion resistance. To overcome this problem and improve the collusion resistance, a new technique for fingerprinting compressed signals called Anti-Collusion Dither (ACD) is proposed, whereby a random dither signal is added to the compressed host before embedding so as to make the effective host signal appear more continuous. The proposed technique is shown to reduce the accuracy with which attackers can estimate the host signal, and from an information theoretic perspective, the proposed ACD technique increases the maximum number of users that can be supported by the fingerprinting system under a given attack. Both analytical and experimental studies confirm that the proposed technique increases the probability of identifying a guilty user and can approximately quadruple the collusion resistance compared to conventional Gaussian fingerprinting.