| 词条 | OMI cryptograph |
| 释义 |
The OMI cryptograph was a rotor cipher machine produced and sold by Italian firm Ottico Meccanica Italiana (OMI) in Rome. The machine had seven rotors, including a reflecting rotor. The rotors stepped regularly. Each rotor could be assembled from two sections with different wiring: one section consisted of a "frame" containing ratchet notches, as well as some wiring, while the other section consisted of a "slug" with a separate wiring. The slug section fitted into the frame section, and different slugs and frames could be interchanged with each other. As a consequence, there were a large number of permutations for the rotor selection. The machine was offered for sale during the 1960s.[1] References1. ^{{cite web|url=http://www.quadibloc.com/crypto/ro020404.htm|title=Relatives of the Enigma|work=quadibloc.com}}
2 : Cryptographic hardware|Rotor machines |
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