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Article

NotchPUF: Printed Circuit Board PUF Based on Microstrip Notch Filter

Department of Electrical and Computer Engineering, University of New Mexico, Albuquerque, NM 87131, USA
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Received: 6 March 2020 / Revised: 20 March 2020 / Accepted: 31 March 2020 / Published: 4 April 2020
(This article belongs to the Special Issue Feature Papers in Hardware Security)
Physical Unclonable Functions (PUFs) are primitives that are designed to leverage naturally occurring variations to produce a random bitstring. Current PUF designs are typically implemented in silicon or utilize variations found in commercial off-the-shelf (COTS) parts. Because of this, existing designs are insufficient for the authentication of Printed Circuit Boards (PCBs). In this paper, we propose a novel PUF design that leverages board variations in a manufactured PCB to generate unique and stable IDs for each PCB. In particular, a single copper trace is used as a source of randomness for bitstring generation. The trace connects three notch filter structures in series, each of which is designed to reject specific but separate frequencies. The bitstrings generated using data measured from a set of PCBs are analyzed using statistical tests to illustrate that high levels of uniqueness and randomness are achievable. View Full-Text
Keywords: physical unclonable functions; PUF; printed circuit board; PCB, band-reject filter; notch filter, PCB variations; interdigital capacitor physical unclonable functions; PUF; printed circuit board; PCB, band-reject filter; notch filter, PCB variations; interdigital capacitor
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MDPI and ACS Style

Martin, M.; Plusquellic, J. NotchPUF: Printed Circuit Board PUF Based on Microstrip Notch Filter. Cryptography 2020, 4, 11. https://0-doi-org.brum.beds.ac.uk/10.3390/cryptography4020011

AMA Style

Martin M, Plusquellic J. NotchPUF: Printed Circuit Board PUF Based on Microstrip Notch Filter. Cryptography. 2020; 4(2):11. https://0-doi-org.brum.beds.ac.uk/10.3390/cryptography4020011

Chicago/Turabian Style

Martin, Mitchell, and Jim Plusquellic. 2020. "NotchPUF: Printed Circuit Board PUF Based on Microstrip Notch Filter" Cryptography 4, no. 2: 11. https://0-doi-org.brum.beds.ac.uk/10.3390/cryptography4020011

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