Watermarking apparatus, software enabling an implementation of an electronic circuit comprising a watermark, method for detecting a watermark and apparatus for detecting a watermark

摘要

A watermarking apparatus for an electronic circuit is described, which comprises the following features: a watermark memory (110) operative to store a watermark (112) characterizing said electronic circuit, and a watermarking signal generator (120) operative to generate based on said watermark (112) a watermarking signal (122) on a power supply line (140) of said electronic circuit, wherein said watermarking signal (122) is detectable for a recognition of said watermark (112).