Review on Logic Locking Attacks in Hardware Security
J Jemimah Rinsy, N. M. Sivamangai, R. Naveenkumar, A. Napolean, A. Puviarasu, V.S. Janani · 2022 6th International Conference on Devices, Circuits and Systems (ICDCS) · 2022
Increasing threats involving hardware Trojans, intellectual property, piracy, reverse engineering and industrialization of semiconductor technology have forced semiconductor companies to reevaluate their production chain trust. In response to these dangers, logic locking is becoming a well-known and effective countermeasure to hardware security. All present logic locking techniques can be broken in hours by a SAT-based attack. Anti-SAT blocks, along with a locked circuit, are introduced as improvements to current logic locking technologies. Sat iterations are proportional to key length and therefore require a certain number to expose the right key, the circuit is computationally infeasible. The paper focus on various logic locking attacks in hardware security.