Studies of quadratic watermark based on MD5

Abstract

In the area of digital watermark's copyright protection, it is difficult to identify the rightful ownership in multiple marks, namely the interpretation attack. In this paper, we propound the quadratic watermark based on the message-digest algorithm 5 (MD5). By embedding a watermark and the MD5 into the products in proper order, the products can resist to the physical attack and the interpretation attack effectively. © 2013 Springer-Verlag.