Welcome to the National Cryptologic Museum Foundation. The NCMF directly supports the National Cryptologic Museum (NCM), the first public museum in the U.S. Intelligence Community.

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Polish mathematicians & code breakers made the first breakthroughs against Nazi Germany's Enigma code.......

1931: Herbert Yardley's "The American Black Chamber" was released.

Saturday, June 1, 2019
1931: Herbert Yardley's "The American Black Chamber" was released.

On 1 June 1931, Herbert O. Yardley's book, The American Black Chamber was released. Yardley's work with the Black Chamber had ended in 1929 when the State Department funding for the program ceased. The program's files were transferred to William Friedman with the Signal Intelligence Service (early predecessor of NSA). Yardley was out of a job and ended up writing a book that was both immensely popular and brought him harsh criticism.

The American Black Chamber was denounced by the U.S. government as having given away American secrets - primarily secrets about how and when cryptanalysis had been applied — not only against likely adversaries, but also against U.S. allies. This led to Public Law 37, signed by Franklin D. Roosevelt in 1933, criminalizing any such future exposure.

Learn more about Yardley via the link below. And make sure to visit the Black Chamber/Yardley exhibit at the National Cryptologic Museum.

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THIS MONTH on the

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  • Birthday of cryptologic machine designer Edward Hebern. Hebern's five-rotor cipher machine is cryptologically significant as part of the overall evolution in U.S. manufactured rotor devices. The National Cryptologic Museum has two very rare five-rotor Hebern cipher machines in its collection.

About Us

The NCMF directly supports the National Cryptologic Museum (NCM), the first public museum in the U.S. Intelligence Community. We think you will agree it is truly a "museum like no other."

Located adjacent to the National Security Agency (NSA) in Maryland, the NCM houses a priceless collection of artifacts that represent our Nation's history in code making and code breaking, as well as a world class library of cryptologic media. The NCMF acquires the best artifacts for the NCM and supports new educational and interactive exhibits.

The NCMF provides exceptional cryptologic programs throughout the year, encourages young minds to explore cryptology and innovation through valued awards, and hosts educational, cryptology-related exhibits at various community events.

As part of the Foundation's partnership with NSA to build the Cyber Center for Education and Innovation - Home of the National Cryptologic Museum (CCEI-NCM), the NCMF also serves as a leader in the field of cybersecurity - striving to provide the best in educational resources and programs.

The NCMF and NCM share a joint three-fold mission to Educate, Stimulate, and Commemorate. Learn more about our MISSION.