STP Cipher of the Czechoslovak In-Exile Ministry of Defence in London during WWII

Authors: Štefan Porubský
Publication year: 2017
Publication type: Konferenční příspěvek (mezinárodní konf.)
Periodical: Proceedings of the 3rd European Historical Ciphers Colloquium Euro HCC 2017
Bibliographic citation: PORUBSKÝ, Štefan. STP Cipher of the Czechoslovak In-Exile Ministry of Defence in London during WWII. In: GATHEN, J., GROŠEK, O., NEMOGA, K., WACKER, A., eds. Proceedings of the 3rd European Historical Ciphers Colloquium Euro HCC 2017. Bratislava: Slovak University of Technology, 2017, S. 47-66. ISBN 978-80-227-4687-8.
ID: 474726

Abstract

In our contribution we shall describe the usage of the STP cipher used by Czechoslovak exile government in London during World War II. We shall reproduce a method for its solution as it was presented in an unpublished manuscript by the leutenant colonel Karol Cigáň (1921-2005) in 1989 - the former chief cryptographer of the Czechoslovak Ministry of Defence in years 1950-1959.