Name
Abstract | ||
|---|---|---|
Encrypted flip-flop (EFF) and Secure Scan-Locking (SeqL) are extension of logic locking for sequential circuits that lock the scan-outputs of flip-flops. In this work, we propose an attack on such family of techniques. Instead of inferring the existing key, we use a replacement attack: we replace a part of the locked circuit with a well-structured circuit that now works correctly with a different key. We show that inferring the key on the transformed circuit is easier and yields correct functionality. We evaluate on 28 EFF/SeqL locked sequential benchmarks and are able to recover functionality in all cases. |
Year | DOI | Venue |
|---|---|---|
2022 | 10.1109/HOST54066.2022.9840185 | 2022 IEEE International Symposium on Hardware Oriented Security and Trust (HOST) |
Keywords | DocType | ISBN |
Logic Locking,SAT Attack,Replace Attack,Sequential Circuit | Conference | 978-1-6654-8533-3 |
Citations | PageRank | References |
0 | 0.34 | 8 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Gourav Takhar | 1 | 1 | 1.39 |
| Subhajit Roy | 2 | 45 | 10.84 |