1 NATIONAL CRYPTOLOGIC MUSEUM
The NSA codes museum
2 Disaling a number into the wheels in the center set up a 'pad' for encoding
3 The legendary Cray-2, first of the supercomputers
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7 The US-Soviet Cold War hotline was not red, and it was not a phone. Messages of this importance had to be in writing.
8 Punched paper tape
9 A WW II German radio frequency encoder
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13 A US variant on Enigma used thes e wheels to set up a pad
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16 En encoding phone - but not a hotline
17 This early analog computer, or "bombe" was used to quickly test alternative possibilities for an Enigma code
18 The legendary German Enigma encoder
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Crypto Museum Jul 23