Towards Increasing the Difficulty of Reverse Engineering of RSFQ Circuits

Integrated circuit (IC) camouflaging is a defense to defeat image-based reverse engineering. The security of CMOS ICs has been extensively studied and camouflage techniques have been developed. A camouflaging method is introduced here to protect superconducting electronics, specifically, rapid single flux quantum (RSFQ) technology, from reverse engineering. RSFQ camouflaged units have been develop...