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MODEL Z: A NUMBERS-ONLY ENIGMA VERSION |
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| Authors: | Arturo Quirantes |
| Affiliation: | C/Torre Hidalgos 1, 1° B. 18004 Granada SPAIN. aquiran@ugr.es |
| Abstract: | A review of pre-WWII documents in the Spanish Foreign Affairs Ministry has discovered a hitherto unknown Enigma modification, called “Model Z”, capable of encrypting numbers only. This model seems to be unknown to the Enigma community. The few known details concerning Enigma Z are here outlined. |
| Keywords: | Encryption machine Enigma Model Z Spain |