In cryptography, Fialka (M-125) is the name of a Russian rotor machine. The machine can contain 10 rotors, each with 30 contacts, and also made use of a punch card mechanism. "Fialka" means "violet" in Russian.

Fialka contains a paper tape reader on the right hand side at the front of the machine, and a paper tape punch and tape printing mechanism on top. The punched-card mechanism for programming the machine is located on the left hand side. The device requires a separate 24 Volt power supply unit.

See also

• Enigma machine
• NEMA

External links

• RUSSIAN M-125 FIALKA (http://webhome.idirect.com/~jproc/crypto/russian_m125_fialka.html) — photographs
• Images of cipher machines, including a number of Fialka (http://www.chss.montclair.edu/~pererat/mcpu.htm)
• German language site with photographs and logical diagrams of Fialka: [1] (http://people.freenet.de/SASundChiffrierdienst/seiten/fialka.html), [2] (http://people.freenet.de/SASundChiffrierdienst/bild/m125-pl.png)