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Omnicoder
 

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This cryptosystem was introduced in Denmark in 1978/79. Most Danish M-190's were replaced by the Kongsberg Defence Communications Omnicoder.

It consisted of a light grey, 19" rack-mount device, about 4" in height, with a numerical keyboard, key erase switch, display and a port for a dongle on the front panel. Input and output ports for teletype and data communication were on the back of the unit. The device operated at speeds from 50 baud to 9600 baud, making it suitable for enciphering data communication. It could operate in full-duplex and half-duplex modes. The Omnicoder maintained Traffic Level Security by sending a constant datastream over the line.

Keysetting (HOTEL JULIET) was effected by inserting a dongle into the port on the front plate. This dongle was a SECRET/CRYPTO controlled item. The daily key was then entered from the daily keylist - also a SECRET/CRYPTO controlled item - via the numerical keyboard on the machine.

The ODIN system was approved for all classifications, NATO and national, but since it was used on national circuits only, the KEYMAT was nationally produced and classified.

The ODIN system gained widespread use in FIKS, (Forsvarets Integrerede Kommunikationsystem - Defence Integrated Communications System), but was replaced by KG-84 in the late 90's when the current X/POST system was put in place.

As with many other crypto devices the Omnicoder was unclassified with no keys loaded, but assumed the classification of the key loaded into it. The Omnicoder was replaced by the KG-84 in the mid-to-late 1990's.

Kongsberg Defence Communications AS is located in Billingstad, Norway.