Finite automata over magmas: models and some applications in Cryptography

In the paper the families of finite semi-automata and reversible finite Mealy and Moore automata over finite magmas are defined and analyzed in detail. On the base of these models it is established that the set of finite quasigroups is the most acceptable subset of the set of finite magmas at resolv...

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Main Authors: Volodymyr V. Skobelev, Volodymyr G. Skobelev
Format: Article
Language:English
Published: Vladimir Andrunachievici Institute of Mathematics and Computer Science 2018-05-01
Series:Computer Science Journal of Moldova
Subjects:
Online Access:http://www.math.md/files/csjm/v26-n1/v26-n1-(pp77-92).pdf
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author Volodymyr V. Skobelev
Volodymyr G. Skobelev
author_facet Volodymyr V. Skobelev
Volodymyr G. Skobelev
author_sort Volodymyr V. Skobelev
collection DOAJ
description In the paper the families of finite semi-automata and reversible finite Mealy and Moore automata over finite magmas are defined and analyzed in detail. On the base of these models it is established that the set of finite quasigroups is the most acceptable subset of the set of finite magmas at resolving model problems in Cryptography, such as design of iterated hash functions and stream ciphers. Defined families of finite semi-automata and reversible finite automata over finite $T$-quasigroups are investigated in detail. It is established that in this case models time and space complexity for simulation of the functioning during one instant of automaton time can be much lower than in general case.
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spelling doaj.art-0fa4e96c5d114907af6142b1dc8d9eae2022-12-22T03:59:57ZengVladimir Andrunachievici Institute of Mathematics and Computer ScienceComputer Science Journal of Moldova1561-40422018-05-01261(76)7792Finite automata over magmas: models and some applications in CryptographyVolodymyr V. Skobelev0Volodymyr G. Skobelev1V.M. Glushkov Institute of Cybernetics of NAS of Ukraine, 40 Glushkova ave., Kyiv, Ukraine, 03187V.M. Glushkov Institute of Cybernetics of NAS of Ukraine, 40 Glushkova ave., Kyiv, Ukraine, 03187In the paper the families of finite semi-automata and reversible finite Mealy and Moore automata over finite magmas are defined and analyzed in detail. On the base of these models it is established that the set of finite quasigroups is the most acceptable subset of the set of finite magmas at resolving model problems in Cryptography, such as design of iterated hash functions and stream ciphers. Defined families of finite semi-automata and reversible finite automata over finite $T$-quasigroups are investigated in detail. It is established that in this case models time and space complexity for simulation of the functioning during one instant of automaton time can be much lower than in general case.http://www.math.md/files/csjm/v26-n1/v26-n1-(pp77-92).pdfmagmasquasigroups$T$-quasigroupsiterated hash functionsstream ciphers
spellingShingle Volodymyr V. Skobelev
Volodymyr G. Skobelev
Finite automata over magmas: models and some applications in Cryptography
Computer Science Journal of Moldova
magmas
quasigroups
$T$-quasigroups
iterated hash functions
stream ciphers
title Finite automata over magmas: models and some applications in Cryptography
title_full Finite automata over magmas: models and some applications in Cryptography
title_fullStr Finite automata over magmas: models and some applications in Cryptography
title_full_unstemmed Finite automata over magmas: models and some applications in Cryptography
title_short Finite automata over magmas: models and some applications in Cryptography
title_sort finite automata over magmas models and some applications in cryptography
topic magmas
quasigroups
$T$-quasigroups
iterated hash functions
stream ciphers
url http://www.math.md/files/csjm/v26-n1/v26-n1-(pp77-92).pdf
work_keys_str_mv AT volodymyrvskobelev finiteautomataovermagmasmodelsandsomeapplicationsincryptography
AT volodymyrgskobelev finiteautomataovermagmasmodelsandsomeapplicationsincryptography