Linear cryptanalysis of quasigroup block cipher

Leonora Gerlock, Abhishek Parakh

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

1 Scopus citations

Abstract

This paper presents the results of a linear cryptanalysis of quasigroup block cipher. The quasigroup block cipher is being developed for resource constrained environments, especially SCADA systems. Here we determine if any key material can be found by conducting a linear cryptanalysis on a simplified quasigroup block cipher. Using Matsu''s algorithm we seek to determine a suitable linear approximation of the quasigroup block cipher, the number of plaintext-ciphertext pairs to test, and the amount of time and space required to mount a known-plaintext attack on the quasi-group block cipher. Since the quasigroup does not use a Feistel network, the focus of the linear cryptanalysis is on the keyed transformation during table lookup operations of the quasigroup in order to 1) determine how the key bits used during encryption impact the ciphertext and from this 2) find a linear approximation that is non-negligible. Our results showed that no key material is recovered using linear cryptanalysis and consequently quasigroup cipher is resistant to such an attack.

Original languageEnglish (US)
Title of host publicationProceedings of the 11th Annual Cyber and Information Security Research Conference, CISRC 2016
PublisherAssociation for Computing Machinery, Inc
ISBN (Electronic)9781450337526
DOIs
StatePublished - Apr 5 2016
Event11th Annual Cyber and Information Security Research Conference, CISRC 2016 - Oak Ridge, United States
Duration: Apr 5 2016Apr 7 2016

Publication series

NameProceedings of the 11th Annual Cyber and Information Security Research Conference, CISRC 2016

Other

Other11th Annual Cyber and Information Security Research Conference, CISRC 2016
CountryUnited States
CityOak Ridge
Period4/5/164/7/16

Keywords

  • Linear cryptanalysis
  • Low-powered cryptosystems
  • Quasigroup encryption

ASJC Scopus subject areas

  • Information Systems
  • Computer Networks and Communications

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  • Cite this

    Gerlock, L., & Parakh, A. (2016). Linear cryptanalysis of quasigroup block cipher. In Proceedings of the 11th Annual Cyber and Information Security Research Conference, CISRC 2016 [2897818] (Proceedings of the 11th Annual Cyber and Information Security Research Conference, CISRC 2016). Association for Computing Machinery, Inc. https://doi.org/10.1145/2897795.2897818