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A cipher machine developed for Japanese naval attaché ciphers, similar to JADE. It was not used extensively, [5] [6] but Vice Admiral Katsuo Abe, a Japanese representative to the Axis Tripartite Military Commission, passed considerable information about German deployments in CORAL, intelligence "essential for Allied military decision making in the European Theater."
Japanese army and diplomatic codes. This article is on Japanese army and diplomatic ciphers and codes used up to and during World War II , to supplement the article on Japanese naval codes . The diplomatic codes were significant militarily, particularly those from diplomats in Germany.
In 1923, a US Navy officer acquired a stolen copy of the Secret Operating Code codebook used by the Imperial Japanese Navy during World War I.Photographs of the codebook were given to the cryptanalysts at the Research Desk and the processed code was kept in red-colored folders (to indicate its Top Secret classification).
In any case, the Japanese Navy had planned to develop their first cipher machine for the following London Naval Treaty. Japanese Navy Captain Risaburo Ito, of Section 10 (cipher & code) of the Japanese Navy General Staff Office, supervised the work. The development of the machine was the responsibility of the Japanese Navy Institute of ...
This article contains a list of air groups of Imperial Japanese Navy Air Service.Literal translation of 海軍航空隊 (Kaigun Kōkūtai) is "Naval Air Group", however, "Naval" is typically omitted in most of the established English-language sources (e.g., [1] [2] [3] [4]).
Retrieved from "https://en.wikipedia.org/w/index.php?title=Japanese_naval_code&oldid=963900771"
If, as Yardley claims, some Japanese codes did have as many as 25,000 code groups at the time of the Washington Naval Conference, it would indicate a healthy appreciation of cryptological realities. Cryptographers have long known that bigger codes are better – all else being equal, a 25,000 group code is stronger than a 2,500 group code.
The Japanese military aircraft designation systems for the Imperial period (pre-1945) had multiple designation systems for each armed service. This led to the Allies' use of code names during World War II, and these code names are still better known in English-language texts than the real Japanese names for the aircraft. A number of different ...