A-1 (code)
A-1 was the designation for a code used by the United States Navy during World War I that replaced the , and another system designed for radio communication. The cryptographic system was developed by Lt. W.W. Smith in the by randomly associating key words with 5 letter patterns.[1]
References[]
- ^ Newton, David E. (1997). Encyclopedia of Cryptography. Santa Barbara California: Instructional Horizons, Inc. p. 1.
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- United States Navy
- World War I
- Signals intelligence of World War I
- Military communications of the United States