JADE (cypher machine)

A captured JADE machine on display in the National Cryptologic Museum.

JADE was the codename given by US codebreakers to a Japanese World War II cipher machine. The Imperial Japanese Navy used the machine for communications from late 1942 until 1944. JADE was similar to another cipher machine, CORAL, with the main difference that JADE was used to encipher messages in katakana using an alphabet of 50 symbols.

See also

• Purple
• RED

External links

• TENTATIVE LIST OF ENIGMA AND OTHER MACHINE USAGES 30 March 1945 — JADE is covered

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