Ciphers and Systems Noted in NSA Records

ENIGMA: The big one.
Enigma H: Eight-rotor model used by the Reichswehr.
Enigma T (Tirpitz): Japanese modification of the Enigma K.
Typex: British Enigma clone. GdNA attempted to break this machine but gave up after 1943. [1]

CORAL: Cipher machine used infrequently by IJN naval attaches. [1]
JADE: Cipher machine used by the IJN from 1942 to 1944.
ORANGE: Cipher machine used by IJN naval attaches during the 1930s. Broken by Agnes Driscoll. Also referred to as the M-1.
PURPLE Cipher machine used by the Foreign Office from 1939 to 1945. Also referred to as the Type B and System 97.
RED: Cipher machine used by the Foreign Office from 1930 to 1938. Replaced by the Type B (PURPLE). Also referred to as the Type A and System 91.

Cifra 74: Diplomatic code broken by William F. Friedman in 1919.

Enigma K: Variant used for military and diplomatic communications. Codes broken by France, Poland, UK, and US. Also referred to as INDIGO (US code name), Model K, Swiss K. [1]
Interbank Code (Bank of International Settlements): Broken by FA in 1941 and read up to 1944. [1] [2]

Bank of England Code: Broken by FA in 1941. [1] [2]
British Interdepartmental Cipher: Broken by FA and B-Dienst in 1942 but work was stopped due to low traffic. [1] [2]
British Merchant Navy Code: Broken by B-Dienst from 1940 to 1943 when the code was replaced. [1]
Naval Code: A 5-digit version of this code was broken by B-Dienst in 1935. [1]
Royal Navy Administrative Code: Broken by B-Dienst member Wilhelm Tranow. [1]

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