T52ca 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 T52ca model is more complex than T52a/b one and it has a better security than the T52c.

Reference: Crypto Museum - T-52 Geheimschreiber

Problems (notes)

1st Problem
(easy)
G. Lasry
09/03/19
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2nd Problem
(difficult)
G. Lasry
09/03/19
. . . . . . . . . . .
3rd Problem
(difficult)
G. Lasry
09/03/19
. . . . . . . . . . .
4th Problem
(difficult)
G. Lasry
11/03/19
. . . . . . . . . . .
5th Problem
(difficult)
G. Lasry
09/03/19
. . . . . . . . . . .
6th Problem
(difficult)
G. Lasry
12/03/19
. . . . . . . . . . .