Conference article

Cryptology in the Slovak State During WWII

Eugen Antal
Slovak University of Technology, Bratislava, Slovakia

Pavol Zajac
Slovak University of Technology, Bratislava, Slovakia

Otokar Grošek
Slovak University of Technology, Bratislava, Slovakia

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Published in: Proceedings of the 2nd International Conference on Historical Cryptology, HistoCrypt 2019, June 23-26, 2019, Mons, Belgium

Linköping Electronic Conference Proceedings 158:3, p. 23-30

NEALT Proceedings Series 37:3, p. 23-30

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Published: 2019-06-12

ISBN: 978-91-7685-087-9

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

We explore the up-to now unknown details of the history of cryptology in Slovakia found in Slovak archives. This contribution focuses on cryptology of the Slovak State, which was a German puppet state during WW2. We identify three main types of ciphers in use. Firstly, ciphers from the former Czechoslovakia were adopted. During main military campaigns, the ciphers were mostly dictated by Germany. Finally, we describe a series of hand ciphers A-x specifically designed in Slovakia, mostly for internal use.

Keywords

Czechoslovakian ciphers German ciphers A-x hand-cipher transposition cipher Slovak State WWII

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