IEEE Consumer Electronics Magazine - July/August 2021 - 106

Special Section: Physical Unclonable Function
A Secure HardwareAssisted
AMI
Authentication Scheme
for Smart Cities
Fathi Amsaad
Eastern Michigan University
Selc¸uk K€ose
University of Rochester
Abstract-In this article, an area-efficient dynamic ring oscillator-based physical unclonable
function design utilizing field-programmable gate arrays technology is proposed. An
enormous amount of secret keys are generated to securely authenticate advanced metering
infrastructure (AMI) nodes throughout their useful lifetimemetingNational Institute of
Science and Technology (NIST) real-time authentication key and security standards. A
secure key exchange scheme between a smartmeter and utility center is implemented
within an AMI network while preserving the privacy and identity of themeter using
lightweight encryption. The proposed framework is demonstrated for six different security
levels (L0 to L5), which have authentication keys with different length and robustness
according to the NIST standards. Experimental results show that our AMI schememeets the
NIST real-time requirements (efficiency) with security levels, L1 and L2, taking, respectively,
6.45 ms and 12.9ms, which is considerably smaller than the existing techniques.
& SMART CITIES INCORPORATE different components
including smart transportation, smart
Digital Object Identifier 10.1109/MCE.2020.3040717
Date ofpublication 25 November 2020; date ofcurrent
version 10 June 2021.
building, smart infrastructure, smart power grid
and energy, smart and connected e-health care,
and smart IoT regimes. These components make
the smart cities faster, greener, safer, friendlier,
and more reliable and efficient.1,2 In the context
of a smart city, the advanced metering infrastructure
(AMI) is one of the state-of-the-art
106
2162-2248 ß 2020 IEEE
Published by the IEEE Consumer Technology Society
IEEE Consumer Electronics Magazine

IEEE Consumer Electronics Magazine - July/August 2021

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