Quasigroup representation of some lightweight block ciphers
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MILEVA, Alexandra, MARKOVSKI, Smile. Quasigroup representation of some lightweight block ciphers. In: Quasigroups and Related Systems, 2014, vol. 22, nr. 2(32), pp. 267-276. ISSN 1561-2848.
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Quasigroups and Related Systems
Volumul 22, Numărul 2(32) / 2014 / ISSN 1561-2848

Quasigroup representation of some lightweight block ciphers

Pag. 267-276

Mileva Alexandra, Markovski Smile
 
Ss. Cyril and Methodius University in Skopje
 
Disponibil în IBN: 6 mai 2016


Rezumat

Most of the lightweight blo ck ciphers are build as S-P networks or Feistel networks, their generalization or variations. We represent the lightweight Feistel ciphers GOST and MIBS, and Generalized Feistel cipher Skip jack by quasigroup string transformations. For obtaining suitable representation we use the fact that Feistel round functions that are bijections can b e considered as orthomorphisms of groups, and that give us a to ol for creating wanted quasigroups.