T52e cipher machine challenge


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The T-52 is a cipher machine for teleprinter signals. It was one of the main cipher machines of the German Army during WWII, being used alongside the Enigma and the Lorenz SZ-40.

The T52e model is more complex than precedent ones. The irregular setting improves a lot the security.

Reference: Crypto Museum - T-52 Geheimschreiber

Problems (notes)

1st Problem
(easy)
G. Lasry
11/03/19
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2nd Problem
(impossible)
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3rd Problem
(difficult)
G. Lasry
11/03/19
. . . . . . . . . . .
4th Problem
(difficult)
G. Lasry
30/03/19
. . . . . . . . . . .
5th Problem
(difficult)
G. Lasry
06/04/19
. . . . . . . . . . .