Soldiers working on the encryption device Enigma
Soldiers working on the encryption device Enigma, which encrypted the plain text of the radio messages after a daily keying element of certain letter groups
Picture No
10497559
Media ID
47994926
Size
1895px x 2347px
(2.2MB)
Credit
Mary Evans / Sueddeutsche Zeitung Photo
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Certain Element Encryption Enigma Messages
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