Welcome to the National Cryptologic Foundation. We strive to influence the cryptologic future by sharing our educational resources, stimulating new knowledge, and commemorating our heritage. The Foundation also provides needed support for the National Cryptologic Museum (NCM).

  • ...The nation’s brightest young minds to consider careers in STEM and cyber related fields

  • ...Robust dialog with the American public on cyber policy, technology, and privacy

  • ...Those who “served in silence” with valor and distinction, especially those who gave their lives in service

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

1920: Brigadier John H. Tiltman Joined GC & CS

August 1, 1920

1 August 1920: John H. Tiltman joined the Government Code and Cipher School. In the photo: Tiltman (right) with Alastair Denniston (left) and "Vinca" Vincent. Photo is from www.colossus-computer.com/colossus1 and was sourced from Barbara Eachus and Government Communications Headquarters, Cheltenham. Photo enhanced by Parker Bright.

The information below is excerpted from the NSA/CSS Cryptologic Hall of Honor: (Tiltman was inducted into the Cryptologic Hall of Honor in 2004 - see link below.) Also included at the end of this page is a link to an NSA publication about Brigadier Tiltman.

John Tiltman joined the British Army in 1914, saw service at the front during the Great War, and was wounded in France. In the period from 1921-29, he served with the Indian Army as a cryptanalyst.

After a decade as a War Office civilian at the Government Code and Cypher School (GC&CS), the interwar cryptologic organization, John was recalled to active duty. His experience enabled him to assist in many areas of endeavor at GC&CS. Considered one of Bletchley Park's finest cryptanalysts on non-machine systems, he also had an important role in solving the German TUNNY machine system.

John Tiltman was an early and persistent advocate of British cooperation with the United States in cryptology. His advocacy helped achieve smooth relations during World War II.

In 1944, he was promoted to Brigadier and appointed Deputy Director of GC&CS. He continued in 1946, as Assistant Director of the Government Communications Headquarters (GCHQ), successor to GC&CS.

John Tiltman became Senior GCHQ Liaison Officer at the Army Security Agency in 1949.

After reaching normal retirement age, he was retained by GCHQ from 1954-1964. From 1964-1980 he was a consultant and researcher at NSA, spending in all 60 years at the cutting edge of SIGINT.

John Tiltman made the transition from the manual ciphers of the early 20th century to the sophisticated machine systems of the latter half of the century. "The Brig," as he was affectionately known in both countries, compiled a lengthy record of high achievement. His efforts at training and his attention to all the many facets that make up cryptology inspired the best in all who encountered him.

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About Us

T he NCF's Vision is to Influence the cryptologic future by sharing our educational resources, stimulating new knowledge, and commemorating our heritage.

The NCF also provides needed support to the National Cryptologic Museum (NCM), the first public museum in the U.S. Intelligence Community.

Located adjacent to the National Security Agency (NSA) in Maryland, the NCM houses a unique and 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 NCF acquires the best artifacts for the Museum and supports new educational and interactive exhibits.

The Foundation provides exceptional cryptologic programs throughout the year, encourages young minds to explore cryptology and cyber education and careers,  hosts educational, cryptology-related exhibits at various community events, and honors the people— past, present, and future—whose contributions to our national security protect and make possible our way of life.

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 NCF also serves as a leader in the field of cybersecurity - striving to provide the best in educational resources and programs.

The NCF has a three-part mission to Educate, Stimulate, and Commemorate. Learn more about our MISSION.