Watermarking With Quadratic Residues,
M. J. Atallah and S. S. Wagstaff, Jr.
This paper appeared in:
Proc. of IS&T/SPIE Conference on Security and
Watermarking of Multimedia Contents,
SPIE - The International Society for Optical Engineering, San Jose, CA,
January 1999.
SPIE Vol. 3657, pp. 283--288.