article · IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems · 2019

LOOPLock: Logic Optimization-Based Cyclic Logic Locking

Hsiao-Yu Chiang, Yung‐Chih Chen, De-Xuan Ji, Yang Xiang-min, Chia-Chun Lin, Chun-Yao Wang

Cited by 21Abstract and details only

Abstract

SAT Attack, CycSAT, and Removal Attack have demonstrated their abilities to break most existing logic locking methods. In this article, we propose a new cyclic logic locking method to invalidate these attacks simultaneously. Our main intention is to create noncombinational cycles to lock a circuit. Specifically, the noncombinational behavior in the noncombinational cycles that is unobservable at the primary outputs (POs) needs to be preserved when the correct key-vector is fed to resist CycSAT, and the noncombinational behavior in the noncombinational cycles affecting POs needs to be preserved when the incorrect key-vector is fed to invalidate SAT Attack. Furthermore, some nodes will be removed when applying our locking method, which is able to defend Removal Attack. The experimental results show the effectiveness and low area overhead of the proposed method.

Cite this paper

APA 7

Chiang, H.-Y., Chen, Y., Ji, D.-X., Xiang-min, Y., Lin, C.-C., & Wang, C.-Y. (2019). LOOPLock: Logic Optimization-Based Cyclic Logic Locking. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 39(10), 2178–2191. https://doi.org/10.1109/tcad.2019.2960351

MLA 9

Chiang, Hsiao-Yu, et al. “LOOPLock: Logic Optimization-Based Cyclic Logic Locking.” IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, vol. 39, no. 10, 2019, pp. 2178–91, https://doi.org/10.1109/tcad.2019.2960351.

Chicago

Chiang, Hsiao-Yu, Yung‐Chih Chen, De-Xuan Ji, Yang Xiang-min, Chia-Chun Lin, and Chun-Yao Wang. 2019. “LOOPLock: Logic Optimization-Based Cyclic Logic Locking.” IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems 39 (10): 2178–91. https://doi.org/10.1109/tcad.2019.2960351.

Harvard

Chiang, H.-Y. et al. (2019) ‘LOOPLock: Logic Optimization-Based Cyclic Logic Locking’, IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 39(10), pp. 2178–2191. Available at: https://doi.org/10.1109/tcad.2019.2960351.

BibTeX

@article{chiang2019looplock,
  title = {{LOOPLock: Logic Optimization-Based Cyclic Logic Locking}},
  author = {Chiang, Hsiao-Yu and Chen, Yung‐Chih and Ji, De-Xuan and Xiang-min, Yang and Lin, Chia-Chun and Wang, Chun-Yao},
  journal = {IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems},
  volume = {39},
  number = {10},
  pages = {2178--2191},
  year = {2019},
  doi = {10.1109/tcad.2019.2960351}
}

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