CamoPerturb: Secure IC camouflaging for minterm protection

Muhammad Yasin, Bodhisatwa Mazumdar, Ozgur Sinanoglu, Jeyavijayan Rajendran

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Integrated circuit (IC) camouflaging is a layout-level technique that thwarts reverse engineering attacks on ICs by introducing camouflaged cells that look alike, but can implement one of many possible Boolean functions. Existing camouflaging techniques have been broken by a recent decamouflaging attack, which uses Boolean satisfiability (SAT) techniques to compute specialized discriminating input patterns that prune the functionality search space quickly. This paper presents CamoPerturb, a countermeasure to thwart the decamouflaging attack by integrating logic perturbation with IC camouflaging. CamoPerturb, contrary to all the existing camouflaging schemes, perturbs the functionality of the given design minimally, i.e., adds/removes one minterm, rather than camouflaging the design. A separate camouflaged block CamoFix restores the perturbed minterm, recovering the functionality of the design. The perturbed minterm is the designer's secret and is incorporated into CamoFix using camouflaged cells. CamoPerturb renders the decamouflaging attack effort exponentially harder in the number of camouflaged gates while its overhead grows linearly. The paper presents formal proofs for the security of CamoPerturb along with experimental results.

Original languageEnglish (US)
Title of host publication2016 IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781450344661
StatePublished - Nov 7 2016
Event35th IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2016 - Austin, United States
Duration: Nov 7 2016Nov 10 2016

Publication series

NameIEEE/ACM International Conference on Computer-Aided Design, Digest of Technical Papers, ICCAD
ISSN (Print)1092-3152


Other35th IEEE/ACM International Conference on Computer-Aided Design, ICCAD 2016
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Software
  • Computer Science Applications
  • Computer Graphics and Computer-Aided Design


Dive into the research topics of 'CamoPerturb: Secure IC camouflaging for minterm protection'. Together they form a unique fingerprint.

Cite this