William Frederick Friedman
✓ Source-basedstableAmerican cryptologist (1891-1969)
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William Frederick Friedman was a US Army cryptographer who ran the research division of the Army's Signal Intelligence Service (SIS) in the 1930s, and parts of its follow-on services into the 1950s.
Also inDeutsch
Photos 8
William and Elizebeth Friedman, recently married, at Riverbank in 1917
Riverbank Laboratories
W. F. Friedman in 1924
Friedman with an AT&T cipher machine
SIGABA cipher machine
Bust of Friedman on display at the National Cryptologic Museum, where he is identified as the "Dean of American Cryptology".
Declassified copy of confiscated 1965 "Friedman Lectures on Cryptology"Awards 1
In their orbit 1
Connected to William 3
Academics from United States 3
About this person
William Frederick Friedman was a US Army cryptographer who ran the research division of the Army's Signal Intelligence Service (SIS) in the 1930s, and parts of its follow-on services into the 1950s. In 1940, subordinates of his led by Frank Rowlett broke Japan's PURPLE cipher, thus disclosing Japanese diplomatic secrets before America's entrance into World War II.
Country
United StatesCategory
Academics
Type
Academic
Status
deceased
Dates
Lived 1891 to 1969 · aged 78
Written about in
13 languages
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