IEEE Consumer Electronics Magazine - September/October 2021 - 58

Column: Energy and Security
Toward Next-Generation
Robust Cryptosystems
Deepak Puthal
Newcastle University
Srinibas Swain
Indian Institute of Information Technology
Guwahati
Saraju P. Mohanty
University of North Texas
Abstract-A variety of technologies including Internet-of-Things (IoT), IoT-edge/fog
computing, and embedded systems are gaining more importance in designing smart
applications (e.g., smart healthcare) with minimal human interventions. All the devices
and datacenters in these applications are connected to the Internet. Considering the
Internet properties, cybersecurity attackers get an easy chance to become part of the
system and participate in the data communication process. This article presents thoughts
on paradigm-shift next generation cryptosystems to overcome the vulnerabilities of the
omnipresent conventional cryptosystems.
VULNERABILITY OF CONVENTIONAL
CRYPTOSYSTEM
& ATTACKERS ARE BIG threats to any system to let
it not meet the purpose of the system deployment.
The cryptosystems are designed to secure the
data against potential attack patterns, such as
attacks on integrity, and confidentiality. The existing
cryptosystems can be broadly divided into two
classes, i.e., asymmetric cryptography and symmetric
cryptography.1 Symmetric cryptography is
a widely used cryptosystem to secure the data on
the fly, and it is scalable with the resource
Digital Object Identifier 10.1109/MCE.2021.3070454
Date ofpublication 20 April 2021; date ofcurrent version
5August 2021.
58
2162-2248 ß 2021 IEEE
constraint and tiny devices.1 Asymmetric cryptography
is considerably more secure, whereas it is
1,000 times slower than symmetric cryptography.2
This is normally used during the symmetric initial
key transmission. The security level of the symmetric
cryptosystem has become a primary concern.
The conventional symmetric cryptosystem is
based on the number theory games, where attackers
are also aware of the operations of the encryption
processes (see Figure 1). Improvising the
number theory-based cryptosystem is not enough,
because the attackers are equipped with high-performance
computing. The security of the cryptosystem
is heavily dependent on the length of the
encryption key. These fundamental drawbacks
demand a novel way of data representation and
Published by the IEEE Consumer Technology Society
IEEE Consumer Electronics Magazine

IEEE Consumer Electronics Magazine - September/October 2021

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