TY - GEN
T1 - Logic-embedded Physically Unclonable Functions for Synthesizable and Periphery-free Implementation for Low Area and Design Cost IoT Security
AU - Kim, Seonho
AU - Im, Changyoun
AU - Lee, Jongmin
AU - Jeong, Soyoun
AU - Kim, Jaerok
AU - Lee, Yoonmyung
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - 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.
AB - 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.
KW - cost-efficient
KW - hardware security
KW - Internet of Things (IoT)
KW - periphery-free
KW - Physically unclonable function (PUF)
KW - synthesized implementation
UR - https://www.scopus.com/pages/publications/85141451091
U2 - 10.1109/ESSCIRC55480.2022.9911394
DO - 10.1109/ESSCIRC55480.2022.9911394
M3 - Conference contribution
AN - SCOPUS:85141451091
T3 - ESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings
SP - 521
EP - 524
BT - ESSCIRC 2022 - IEEE 48th European Solid State Circuits Conference, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 48th IEEE European Solid State Circuits Conference, ESSCIRC 2022
Y2 - 19 September 2022 through 22 September 2022
ER -