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The Beale Papers (declassified document release)
National Security Agency, 2021. NSA Historical Releases, 15 July 2021.
Seventeen PDFs from NSA files: press clippings, the Beale Cypher Association's "Historical and Analytical Studies" of 1970 and 1972, Carl Hammer's "Signature Simulation and Certain Cryptographic Codes", correspondence, and an internal "Beale Treasure: Fact or Fiction" note. Shows that cryptanalysts inside the agency looked at the ciphers and reached no solution.
What it's used for here
Primary documents for the twentieth-century professional interest in the ciphers.
Cited by on this site 6 records
EVD
The Beale ciphers
MYSThe mystery article
Cite it
National Security Agency (2021). The Beale Papers (declassified document release). NSA Historical Releases, 15 July 2021. https://www.nsa.gov/Helpful-Links/NSA-FOIA/Declassification-Transparency-Initiatives/Historical-Releases/Beale-Papers/
@techreport{nsa2021beale,
author = {National Security Agency},
title = {The Beale Papers (declassified document release)},
howpublished = {NSA Historical Releases, 15 July 2021},
year = {2021},
url = {https://www.nsa.gov/Helpful-Links/NSA-FOIA/Declassification-Transparency-Initiatives/Historical-Releases/Beale-Papers/}
}TY - RPRT TI - The Beale Papers (declassified document release) AU - National Security Agency PY - 2021 JO - NSA Historical Releases, 15 July 2021 UR - https://www.nsa.gov/Helpful-Links/NSA-FOIA/Declassification-Transparency-Initiatives/Historical-Releases/Beale-Papers/ ER -
. “The Beale Papers (declassified document release).” NSA Historical Releases, 15 July 2021 (2021).