Collusion-Resistant Fingerprinting for Compressed Multimedia Signals

  title={Collusion-Resistant Fingerprinting for Compressed Multimedia Signals},
  author={Avinash L. Varna and Shan He and Ashwin Swaminathan and Min Wu and Haiming Lu and Zengxiang Lu},
  journal={2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07},
Most existing collusion-resistant fingerprinting techniques are for fingerprinting uncompressed signals. In this paper, we first study the performance of the traditional Gaussian based spread spectrum sequences for fingerprinting compressed signals and show that the system can be easily defeated by averaging or taking the median of a few copies. To overcome the collusion problem for compressed multimedia host signals, we propose a technique called anti-collusion dithering to mimic an… CONTINUE READING