An asymmetric subspace watermarking method for copyright protection

Jengnan Tzeng, Wen-Liang Hwang, I-Liang Chern
2005 IEEE Transactions on Signal Processing  
We present an asymmetric watermarking method for copyright protection that uses different matrix operations to embed and extract a watermark. It allows for the public release of all information, except the secret key. We investigate the conditions for a high detection probability, a low false positive probability, and the possibility of unauthorized users successfully hacking into our system. The robustness of our method is demonstrated by the simulation of various attacks.
doi:10.1109/tsp.2004.839921 fatcat:daihcikmmnbpfnd7rnmxpjnvle