PicoCTF_2017: Mystery Box

Category: Miscellanous Points: 60 Description:

You've found a mystery machine with a sticky note attached to it! Oh, there's also this picture of the machine you found.

Hint:

It really gets your gears Turing. I hear there's something Naval about it.

Write-up

This seems to be a Enigma machine challenge. We are also given the following note.txt about it.

Geheimnis: PXQQ TAMY YDBC WGYE LVN
Umkehrwalze: B
Grundstellung: PPP
Ringstellung: LOG
Steckerbrett: G-L, H-F

Converting to English, we get,

Secret: PXQQ TAMY YDBC WGYE LVN
Reversing roller: B
Basic position: PPP
Positioning: LOG
Plug connector: G-L, H-F

Okay. Let's try using an Enigma machine with all this details filled in.

PXQQ TAMY YDBC WGYE LVN

gives us

QUIT EPUZ ZLIN GIND EED
QUITEPUZZLINGINDEED

Therefore, the flag is QUITEPUZZLINGINDEED.

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