Logic-embedded Physically Unclonable Functions for Synthesizable and Periphery-free Implementation for Low Area and Design Cost IoT Security

  • Seonho Kim
  • , Changyoun Im
  • , Jongmin Lee
  • , Soyoun Jeong
  • , Jaerok Kim
  • , Yoonmyung Lee

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Novel logic-embedded physically unclonable functions (Logic-ePUF) are proposed to significantly reduce design/area cost with minimal modification on standard cells used for semi-custom design flow. By replacing scan flip-flops and buffers in scan chain with proposed flip-flop-ePUF (FF-ePUF) and buffer-ePUF (BUF-ePUF), efficient PUF implementation is enabled without additional readout periphery. The proposed Logic-ePUF not only operates as a standard cell but also as a PUF. To generate secure key, proposed Logic-ePUF operates under PUF mode by comparing the difference of switching voltages (VM) of 1st and 2nd stage inverters. The proposed FF-ePUF and BUF-ePUF are fabricated in 28nm FDSOI process to evaluate effectiveness and performance. The proposed FF-ePUF achieved 178ppm BER through reconfiguration and tilting with 332-447F2/bit area overhead. And the proposed BUF-ePUF reduced 41% of area overhead compared to conventional method.

Original languageEnglish
Title of host publicationESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages521-524
Number of pages4
ISBN (Electronic)9781665484947
DOIs
StatePublished - 2022
Event48th IEEE European Solid State Circuits Conference, ESSCIRC 2022 - Milan, Italy
Duration: 19 Sep 202222 Sep 2022

Publication series

NameESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings

Conference

Conference48th IEEE European Solid State Circuits Conference, ESSCIRC 2022
Country/TerritoryItaly
CityMilan
Period19/09/2222/09/22

Keywords

  • cost-efficient
  • hardware security
  • Internet of Things (IoT)
  • periphery-free
  • Physically unclonable function (PUF)
  • synthesized implementation

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