Effect of aging on linear and nonlinear MUX PUFs by statistical modeling

Anoop Koyily, Satya Venkata Sandeep Avvaru, Chen Zhou, Chris H. Kim, Keshab K. Parhi

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

3 Citations (Scopus)

Abstract

This paper addresses the effect of aging on linear and non-linear MUX physical unclonable functions (PUFs). It is well known that a PUF response can be modeled in terms of the delay difference of MUX stages. In this paper, we show that the aging effects can be modeled in terms of variations in delay-difference and arbiter delay. Specifically, with aging, the percent delay-difference variation of each MUX stage can be modeled as a ratio of two correlated Gaussian random variables. This ratio distribution is shown to be approximately Gaussian with zero mean and variance increasing with time. In case of the arbiter, the ratio distribution is modeled as a Gaussian with positive mean. The paper makes three contributions: modeling the effect of aging in terms of percent variations in delay-difference of the MUX stages and arbiter delay, analysis of authentication accuracy with aging, and approaches to increase the PUF's lifetime by either recalibrating it to obtain new delay-difference parameters, or by tuning a threshold based on the total delay-difference. A general approach for selecting the threshold values is described in the paper. It is shown that the authentication accuracy of a PUF is significantly affected due to aging effects of the arbiter itself. Therefore, under the assumption that the variations in arbiter delay are considerably more than in delay-differences, the performance degradation in the case of aging alone is prominent compared to noise alone. We show that the authentication accuracy of a feed-forward PUF is more degraded compared to linear or modified feed-forward PUF. Metrics like Jenson-Shannon and Henze-Penrose divergence are also used to analyze the effect of aging.

Original languageEnglish (US)
Title of host publicationASP-DAC 2018 - 23rd Asia and South Pacific Design Automation Conference, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages76-83
Number of pages8
ISBN (Electronic)9781509006021
DOIs
StatePublished - Feb 20 2018
Event23rd Asia and South Pacific Design Automation Conference, ASP-DAC 2018 - Jeju, Korea, Republic of
Duration: Jan 22 2018Jan 25 2018

Publication series

NameProceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC
Volume2018-January

Other

Other23rd Asia and South Pacific Design Automation Conference, ASP-DAC 2018
CountryKorea, Republic of
CityJeju
Period1/22/181/25/18

Fingerprint

Aging of materials
Authentication
Hardware security
Random variables
Tuning
Degradation

Keywords

  • Aging
  • Divergence metrics
  • Noise
  • Physical Unclonable Function
  • Statistical Modeling

Cite this

Koyily, A., Avvaru, S. V. S., Zhou, C., Kim, C. H., & Parhi, K. K. (2018). Effect of aging on linear and nonlinear MUX PUFs by statistical modeling. In ASP-DAC 2018 - 23rd Asia and South Pacific Design Automation Conference, Proceedings (pp. 76-83). (Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC; Vol. 2018-January). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ASPDAC.2018.8297286

Effect of aging on linear and nonlinear MUX PUFs by statistical modeling. / Koyily, Anoop; Avvaru, Satya Venkata Sandeep; Zhou, Chen; Kim, Chris H.; Parhi, Keshab K.

ASP-DAC 2018 - 23rd Asia and South Pacific Design Automation Conference, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. p. 76-83 (Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC; Vol. 2018-January).

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

Koyily, A, Avvaru, SVS, Zhou, C, Kim, CH & Parhi, KK 2018, Effect of aging on linear and nonlinear MUX PUFs by statistical modeling. in ASP-DAC 2018 - 23rd Asia and South Pacific Design Automation Conference, Proceedings. Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC, vol. 2018-January, Institute of Electrical and Electronics Engineers Inc., pp. 76-83, 23rd Asia and South Pacific Design Automation Conference, ASP-DAC 2018, Jeju, Korea, Republic of, 1/22/18. https://doi.org/10.1109/ASPDAC.2018.8297286
Koyily A, Avvaru SVS, Zhou C, Kim CH, Parhi KK. Effect of aging on linear and nonlinear MUX PUFs by statistical modeling. In ASP-DAC 2018 - 23rd Asia and South Pacific Design Automation Conference, Proceedings. Institute of Electrical and Electronics Engineers Inc. 2018. p. 76-83. (Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC). https://doi.org/10.1109/ASPDAC.2018.8297286
Koyily, Anoop ; Avvaru, Satya Venkata Sandeep ; Zhou, Chen ; Kim, Chris H. ; Parhi, Keshab K. / Effect of aging on linear and nonlinear MUX PUFs by statistical modeling. ASP-DAC 2018 - 23rd Asia and South Pacific Design Automation Conference, Proceedings. Institute of Electrical and Electronics Engineers Inc., 2018. pp. 76-83 (Proceedings of the Asia and South Pacific Design Automation Conference, ASP-DAC).
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