(very easy)
21/03/17
14/04/19
04/06/20
17/06/2009/07/21(easy)
21/03/1714/04/1915/06/2018/06/2010/07/21(medium)
14/04/1919/06/2029/06/20(medium)
14/04/1927/06/20(difficult)
14/04/1923/06/20Crypto Homepage --> Cipher Machines Challenge
The Kryha encryption machine was designed in the 1920s by Alexander Von Kryha.
The machine was used by several large companies like Marconi. German diplomacy also used it.
|
1st Problem (very easy) |
Bart den Hartog21/03/17 |
Luigi Tomelli14/04/19 |
Rossignol04/06/20 |
Rafael Pascual17/06/20 |
García Larragan09/07/21 |
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|
2nd Problem (easy) |
Bart den Hartog21/03/17 |
Luigi Tomelli14/04/19 |
Rossignol15/06/20 |
Rafael Pascual18/06/20 |
García Larragan10/07/21 |
. | . | . | . | . | . | . |
|
3nd Problem (medium) |
Luigi Tomelli14/04/19 |
Rossignol19/06/20 |
Rafael Pascual29/06/20 |
. | . | . | . | . | . | . | . | . |
|
4th Problem (medium) |
Luigi Tomelli14/04/19 |
Rafael Pascual27/06/20 |
. | . | . | . | . | . | . | . | . | . |
|
5th Problem (difficult) |
Luigi Tomelli14/04/19 |
Rafael Pascual23/06/20 |
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