The First Classical Enigmas. Swedish Views on Enigma Development 1924-1930

Anders Wik
S Catalinagr 9, S-18368 Täby, Sweden

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Ingår i: Proceedings of the 1st International Conference on Historical Cryptology HistoCrypt 2018

Linköping Electronic Conference Proceedings 149:16, s. 83-88

NEALT Proceedings Series 34:16, p. 83-88

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Publicerad: 2018-06-13

ISBN: 978-91-7685-252-1

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


This paper concerns the very first “classical” Enigma from 1924, with rotors, reflector and lamp display. A description is given of the Enigma machines bought by the Swedish General Staff in early 1925, of the competition regarding the first standard crypto machine for the Swedish armed forces, and of some later developments.


Inga nyckelord är tillgängliga


Bernstein, Carl. 1924. German patent DE 407 804. http://www.cryptomuseum.com/crypto/enigma/patents/files/DE407804.pdf

Damm, Arvid Gerhard. 1919. Swedish patent SE52 279. Filed Oct 10, 1919. US patent 1 502 376, July 22, 1924.

Damm, Arvid Gerhard. 1927. Preliminärt utlåtande angående “Glühlampen-Chiffriermaschine Enigma”. Krigsarkivet, Stockholm. Boris Hagelins privatarkiv, vol F II:3.

ENIGMA Chiffriermaschinen. 1924. Handelsmaschine. FRA Crypto collections.

Faurholt, Niels O. 2006. Alexis Køhl: A Danish Inventor of Cryptosystems. Cryptologia vol 30.

FRA archive. 1924-1930. Bearbetningsbyrån F V:1. “Chifferapparaten Enigma”.

FRA archive. 1927. Bearbetningsbyrån F V:1. Instruktion för användning av Chifferapparat Enigma B /Chiffer EZ/.

Grahn, Jan-Olof. 2017. Om svensk signalspaning - Pionjärerna (“On Swedish SIGINT – The pioneers”). Medströms bokförlag, Stockholm.

Hamer, David. 1997. Enigma: Actions involved in the ‘double stepping’ of the middle rotor. Cryptologia vol 21.

McKay and Beckman. 2003. Swedish signal intelligence 1900-1945. Frank Cass, London.

Weierud, Frode. 2014. Personal communication.

Wik, Anders. 2016. Enigma Z30 retrieved. Cryptologia vol 40.

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