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File:NSA DIANA one time pad.tiff

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Summary

Description
English: A format of one-time pad used by the U.S. National Security Agency, code named DIANA. The table on the right is an aid for converting between plaintext and ciphertext using the characters at left as the key. The black circle is an artifact of copying, due to a hole punched in the original.
Date
Source https://www.governmentattic.org/18docs/Hist_US_COMSEC_Boak_NSA_1973u.pdf A History of U.S. Communications Security; the David G. Boak Lectures, National Security Agency (NSA), Volumes I, 1973, Volumes II 1981, partially released 2008, additional portions declassified October 14, 2015
Author US National Security Agency

Licensing

Public domain
This article or image contains materials that originally came from a National Security Agency (NSA) website or publication. It is believed that this information is not classified, and is in the public domain in the United States. See the privacy and security information.

Captions

Type of one-time pad used by the U.S. National Security Agency, code named DIANA.

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depicts

14 October 2015

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Date/TimeThumbnailDimensionsUserComment
current12:08, 12 July 2018Thumbnail for version as of 12:08, 12 July 2018910 × 806 (733 KB)TemTemReduced filesize
16:02, 21 December 2015Thumbnail for version as of 16:02, 21 December 2015910 × 806 (904 KB)ArnoldReinholdUser created page with UploadWizard

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