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Titel:

Timing Camouflage Enabled State Machine Obfuscation

Dokumenttyp:
Konferenzbeitrag
Autor(en):
Brunner, Michaela; Ibrahimpasic, Tarik; Li, Bing; Zhang, Grace Li; Schlichtmann, Ulf; Sigl, Georg
Abstract:
State machine obfuscation is an important step to harden circuits against reverse engineering. The work presents a state machine obfuscation enabled by Timing Camouflage. Flipflops of state machines often have a combinational feedback path. This makes it challenging to directly apply Timing Camouflage. Therefore, we developed two methods to redesign a state machine, such that at least one of its flip-flops is free of combinational feedback paths while the original functionality stays the...     »
Stichworte:
FSM obfuscation, Timing Camouflage, sequential reverse engineering, combinational feedback path, FSM extraction, SAT attack
Dewey-Dezimalklassifikation:
620 Ingenieurwissenschaften
Kongress- / Buchtitel:
2022 IEEE Physical Assurance and Inspection of Electronics (PAINE)
Kongress / Zusatzinformationen:
Huntsville, USA
Ausrichter der Konferenz:
IEEE
Jahr:
2022
Quartal:
3. Quartal
Jahr / Monat:
2022-10
Monat:
Oct
Seiten:
1-7
Reviewed:
ja
Sprache:
en
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