William Frederick Friedman

World War II · US Army

Record	Title	Source Website	Type	Created
The-United-States-Capitol-building-with-the-dome-lit-up-at-night.jpg		Forces War Records	Image	Jun 6, 2020
Lincoln Memorial.jpg		Forces War Records	Image	Sept 30, 2020
Friedman, William Frederick - Page 1	US, WWII "Old Man's Draft" Registration Cards, 1942	Forces War Records	Image	Jun 21, 2016
Friedman, William Frederick - Page 1	US, WWI, Draft Registration Cards, 1917-1918	Forces War Records	Image	Jun 8, 2016
download (12).jpg		Forces War Records	Image	Jan 14, 2021
AdobeStock_82664008.jpeg		Forces War Records	Image	Oct 22, 2020
Jefferson Memorial.jpg		Forces War Records	Image	Jun 15, 2020
download (11).jpg		Forces War Records	Image	Jan 14, 2021
AdobeStock_68363012.jpeg		Forces War Records	Image	Jul 9, 2020
457889EA00000578-4993446-image-m-63_1508362652219.jpg		Forces War Records	Image	Jan 12, 2021
Caisson.jpg		Forces War Records	Image	Jun 18, 2018
WW II Memorial.jpg		Forces War Records	Image	May 23, 2016
Friedmana.jpg		Forces War Records	Image	Jan 13, 2021
friedman_poster_full.png		Forces War Records	Image	Jan 12, 2021
Elizebeth Smith Friedman		Forces War Records	Memorial	Jan 12, 2021

URL	Events	Description
William F. Friedman
Signals Intelligence Service (SIS)
Armed Forces Security Agency (AFSA)
National Security Agency (NSA)
NSA
[2]
code and ciphers
commercial codes
cryptographic machines
Aktiebolaget (AB) Cryptoteknik
Crypto AG
Boris Hagelin
Hagelin machines
AFSA
Hagelin
[4]
The Gentleman's Agreement
sell his company
BND
CIA
[5]
The Index of Coincidence
[6]
WWII
[7]
Gentleman's Agreement
[8]
NATO
this one by ourselves
Operation RUBICON
++Elizebeth Smith++