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Kryptographik

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1809 book on cryptography

A copy of Kryptographik at the National Cryptologic Museum

Kryptographik Lehrbuch der Geheimschreibekunst (Cryptology: Instruction Book on the Art of Secret Writing) is an 1809 book on cryptography written by Johann Ludwig Klüber.

In 2011 the National Security Agency included a copy of Kryptographik, used by a German cryptographer during World War II, as part of a 50,000 page release of classified documents.

References

  1. The New International Encyclopædia Volume 6. Dodd, Mead. 1925. p. 325.
  2. "The National Security Agency Releases Over 50,000 Pages of Declassified Documents". NSA. 8 June 2011. Archived from the original on March 27, 2012.
  3. "Update to 8 June 2011 Press Release" (PDF). NSA. 19 August 2011. Retrieved 23 September 2020.


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