Hardware Obfuscation Based Watermarking Technique for IPR Ownership Identification

Figure 6

Pictorial representation of the cases: (a) case 1 with incorrect key signal to Enable logic, (b) case 2 with correct key signal to Enable logic but incorrect owner’s key, and (c) case 3 with both key signal and owner’s key are correct.

(a)

(b)

(c)