File:NSA_DIANA_one_time_pad.tiff
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Summary
DescriptionNSA DIANA one time pad.tiff |
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 domainPublic domainfalsefalse |
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.
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Items portrayed in this file
depicts
14 October 2015
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 12:08, 12 July 2018 | 910 × 806 (733 KB) | TemTem | Reduced filesize | |
16:02, 21 December 2015 | 910 × 806 (904 KB) | ArnoldReinhold | User created page with UploadWizard |
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Width | 910 px |
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Height | 806 px |
Compression scheme | Deflate (Adobe) |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 4 |
Number of rows per strip | 64 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Data arrangement | chunky format |
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