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Considerations When Designing Sponge-based Extendable-Output Functions for Lightweight and Mobile Devices

Authors:
Meaad Tori
David Paul
William Billingsley

Keywords: lightweight cryptography; extendable-output function; security analysis; Internet of Things

Abstract:
Through the study of existing lightweight cryptographic algorithms, we suggest a number of design guidelines for creating new sponge-based extendable-output functions for use in resource-constrained environments. While several such algorithms exist, some knowledge that can be generalized from studying them in aggregate has not previously been presented. The developed guidelines include consideration of the round function width, the number of rounds, the selection of round constants, the rate, the linear and non-linear layers, and the required security claim. The result of these guidelines is a set of recommendations for the design of sponge-based extendable-output functions that should allow correctly balanced security and performance in environments where compute power, available memory, and battery life may all be limited. These recommendations could be used to help design purpose-built implementations for various wireless or mobile systems.

Pages: 7 to 12

Copyright: Copyright (c) IARIA, 2022

Publication date: May 22, 2022

Published in: conference

ISSN: 2308-4219

ISBN: 978-1-61208-973-7

Location: Venice, Italy

Dates: from May 22, 2022 to May 26, 2022