File:Red and Purple - A Story Retold.pdf

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Original file ‎(1,270 × 1,647 pixels, file size: 4.2 MB, MIME type: application/pdf, 21 pages)

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Captions

A Cryptologic Quarterly article detailing the codename "Red" and "Purple" wartime Japan cipher machines

Summary[edit]

Description
English: A Cryptologic Quarterly (Fall/Winter 1984-1985 - Vol. 3, Nos. 3-4) article detailing the codename "Red" and "Purple" wartime Japan cipher machines
Date
Source

National Security Agency

https://www.nsa.gov/Portals/70/documents/news-features/declassified-documents/cryptologic-quarterly/Red_and_Purple.pdf
Author Cryptologic Quarterly

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Public domain
This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code. Note: This only applies to original works of the Federal Government and not to the work of any individual U.S. state, territory, commonwealth, county, municipality, or any other subdivision. This template also does not apply to postage stamp designs published by the United States Postal Service since 1978. (See § 313.6(C)(1) of Compendium of U.S. Copyright Office Practices). It also does not apply to certain US coins; see The US Mint Terms of Use.
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