Lightweight secure PUFs

  • Authors:
  • Mehrdad Majzoobi;Farinaz Koushanfar;Miodrag Potkonjak

  • Affiliations:
  • Rice University, Main, Houston, TX;Rice University, Main, Houston, TX;University of California, Los Angeles, Boelter Hall, Los Angeles, CA

  • Venue:
  • Proceedings of the 2008 IEEE/ACM International Conference on Computer-Aided Design
  • Year:
  • 2008

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Abstract

To ensure security and robustness of the next generation of Physically Unclonable Functions (PUFs), we have developed a new methodology for PUF design. Our approach employs integration of three key principles: (i) inclusion of multiple delay lines for creation of each response bit; (ii) transformations and combination of the challenge bits; and (iii) combination of the outputs from multiple delay lines; to create modular, easy to parameterize, secure and reliable PUF structures. Statistical analysis of the new structure and its comparison with existing PUFs indicates a significantly lower predictability, and higher resilience against circuit faults, reverse engineering and other security attacks.