New lightweight AES S-box using LFSR

M. M. Wong, M. L. Dennis Wong

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

The paper presents a new design approach for AES SubBytes transformation (S-box) by using the Linear Feedback Shift Register (LFSR). In the past, composite field arithmetic (CFA) is commonly deployed as it effectively produces lightweight and pure combinational architecture. Unfortunately, the downside of this methodology is that the resultant circuitry is complex in nature, which leads to long critical path and high power consumption. On the other hand, the proposed solution in this work is relatively simple which comprised of a pair of identical LFSRs, two comparators and a multiplexer. LFRS is employed to replace the CFA in performing the multiplicative inversion over GF(28). The resultant architecture is proven to consume less hardware space and having low routing complexity, hence suitable for lightweight embedded devices.

Original languageEnglish
Title of host publication2014 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2014
PublisherIEEE
Pages115-120
Number of pages6
ISBN (Electronic)9781479961207
DOIs
Publication statusPublished - Jan 2015
Event2014 International Symposium on Intelligent Signal Processing and Communication Systems - Kuching, Sarawak, Malaysia
Duration: 1 Dec 20144 Dec 2014

Conference

Conference2014 International Symposium on Intelligent Signal Processing and Communication Systems
Abbreviated titleISPACS 2014
CountryMalaysia
CityKuching, Sarawak
Period1/12/144/12/14

Keywords

  • Advanced Encryption Standard (AES) S-box
  • Lightweight Cryptography
  • Linear Feedback Shift Register (LFSR)
  • Multiplicative Inverse

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Signal Processing

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  • Cite this

    Wong, M. M., & Wong, M. L. D. (2015). New lightweight AES S-box using LFSR. In 2014 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2014 (pp. 115-120). [7024436] IEEE. https://doi.org/10.1109/ISPACS.2014.7024436