IEEE Consumer Electronics Magazine - July/August 2021 - 79

Guest Editors' Introduction
Physical Unclonable Function
(PUF)-Based Sustainable Cybersecurity
Himanshu Thapliyal
University of Kentucky
Saraju P. Mohanty
University of North Texas
& THIS SPECIAL SECTION investigates the potential
use of physically unclonable functions
(PUFs) as a hardware security approach for sustainable
cybersecurity. PUFs are a class of circuits
that use the inherent variations in the
integrated circuit manufacturing process to create
unique and unclonable IDs.1 PUF has the
potential to seal multiple types of vulnerabilities
for sustainable cybersecurity specifically in the
security classes of authentication, nonrepudiation,
and privacy. PUF designs are proposed
using a variety of techniques and implementation
mediums (see Figure 1).1,5 The common
ground between the designs is leveraging intrinsic
variations that should be unique to each
instance of a device.
PUF-based sustainable security solutions can
mitigate cybersecurity vulnerabilities and the
impacts of potential attacks in Internet of Things
and cyber-physical systems (CPS) that form the
core of smart consumer devices, smart cities,
smart healthcare, smart transportation, smart
building, smart infrastructure, smart power grid
and energy, and other emerging smart electronics
paradigms.2-5 We briefly introduce the
accepted articles in the following.
Digital Object Identifier 10.1109/MCE.2021.3065857
Date ofcurrent version 10 June 2021.
Electronic money or e-Cash is becoming
increasingly popular as the preferred strategy
for making purchases, both online and offline.
The article " Artificially Intelligent Electronic
Money " investigates several artificial intelligence
approaches for improving performance and
privacy within a previously proposed e-Cash
scheme called PUF-Cash. PUF-Cash utilizes PUFs
for authentication and encryption operations
between Alice, the Bank, and multiple trusted
third parties.
Tracking the host carrying the virus of
COVID-19 has been one of the major issues during
this pandemic. The article " PIM: A PUF-Based
Host Tracking Protocol for Privacy Aware Contact
Tracing in Crowded Areas " proposes
PUF-based privacy-aware identification module, an
Internet-of-Medical-Things architecture to track
thehostcarryingthe virusina crowdedarea.
CPS integrates sensors, computing platforms,
and networking among constituent
blocks. To build hardware security primitives,
e.g., true random number generator (TRNG)
and PUF from sensors and energy harvesting
devices in CPS is a novel research direction.
The article " An Integrated TRNG-PUF Architecture
Based on Photovoltaic Solar Cells "
proposes integrated TRNG-PUF architecture
devised around a common entropy source of
photovoltaic solar cell.
July/August 2021
Published by the IEEE Consumer Technology Society
2162-2248 ß 2021 IEEE
79
IEEE Consumer Electronics Magazine - July/August 2021

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