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.......

1930: Abraham Sinkov reported to work at SIS.

Thursday, April 11, 2019
1930: Abraham Sinkov reported to work at SIS.

11 April 1930: Abraham Sinkov reported to work for William Friedman at SIS, becoming one of the original four - with William Friedman, Solomon Kullback, and Frank Rowlett. Sinkov was inducted into the NSA/CSS Cryptologic Hall of Honor in 1999. Read the full entry regarding his career and accomplishments via the link below. In the photo: The Signal Intelligence Service about 1935. Seated: Louise Newkirk Nelson. Standing, left to right: Herrick F. Bearce; Solomon Kullback; Capt. Harold G. Miller, U.S. Army; William F. Friedman; Abraham Sinkov; Lt. L. T. Jones, United States Coast Guard; and Frank B. Rowlett.

In 1930, William Friedman, a senior civilian in the Army's Signal Intelligence Service (SIS) was authorized to hire three civilians, at $2,000 per year -- a fairly good salary in the early period of the Great Depression. On April 1, Frank Rowlett, a mathematics teacher from Virginia, reported for duty. Later that month, two mathematics teachers from Brooklyn came to Washington to work as cryptanalysts, Abraham Sinkov and Solomon Kullback. In addition to his successes with SIS and also with the Central Bureau, in 1954, Dr. Sinkov became the second NSA official to attend the National War College (the first was Dr. Louis Tordella). Upon his return, he became Deputy Director for Production, effectively swapping jobs with his old colleague Frank Rowlett. Dr. Sinkov retired from NSA in 1962.

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  • DoD Directive established DEFSMAC (Defense Special Missile and Astronautics Center). It was renamed in 2002 changing “Astronautics” to “Aerospace.” DEFSMAC is a joint NSA-DIA-NGA organization headquartered at NSA. Its mission is to coordinate the collection of intelligence information from foreign missiles and satellites.

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.