Logic Locking Based Trojans: A Friend Turns Foe
TimeTuesday, July 12th6pm - 7pm PDT
LocationLevel 2 Lobby
Event Type
Networking Reception
Work-in-Progress Poster
DescriptionLogic locking and hardware Trojans are two fields in hardware security that have been developed mostly independent from each other. In this paper, we identify the logical relationship between these two sub-fields. We first summarize the structural commonalities among logic locking techniques which are resilient to Boolean satisfiability (SAT) based attacks. These locking constructions all contain two modification units (MU) that can insert error into the locked circuit. We find that, when only one MU is kept in place and the locking key is removed, the resulting circuit will have desirable properties of a hardware Trojan (HWT).