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http://dx.doi.org/10.7840/kics.2017.42.2.316

A Study on the Throughput Enhancement in Software Implementation of Ultra Light-Weight Cryptography PRESENT  

Park, Won-kyu (Department of Information Communication Engineering, Dongguk University)
Cebrian, Guillermo Pallares (Department of Telecommunication Engineering, University Autonoma de Barcelona)
Kim, Sung-joon (Department of Information Communication Engineering, Dongguk University)
Lee, Kang-hyun (Double H, R&D Center)
Lim, Dae-woon (Department of Information Communication Engineering, Dongguk University)
Yu, Ki-soon (Department of Information Communication Engineering, Dongguk University)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.42, no.2, 2017 , pp. 316-322 More about this Journal
Abstract
This paper suggests an efficient software implementation of lightweight encryption algorithm PRESENT which supports for secret key lengths of 80-bits. Each round of PRESENT is composed of the round key addition, substitution, and permutation and is repeated 31 times. Bo Zhu suggested combined substitution and permutation for efficient operation so that encryption throughput has been increased 2.6 times than processing substitution and permutation at separate times. The scheme that suggested in this paper improved the scheme of Bo Zhu to reduce the number of operation for the round key addition, substitution, and permutation. The scheme that suggested in this paper has increased encryption throughput up to 1.6 times than the scheme of Bo Zhu but memory usage has been increased.
Keywords
PRESENT; Lightweight Encryption Algorithm; IoT Security;
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