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README.md

Enigma

Enigma.cpp

Enigma Simulator by James A. McCombe, 2013

Small tribute to Alan Touring after an inspiring visit to the amazing Bletchly Park museum in Milton Keynes. This is a quick hack to simulate an Enigma machine used during World War II.

I highly recommend this webpage to learn about the mechanics of the Enigma machine that is being simulated here:

http://users.telenet.be/d.rijmenants/en/enigmatech.htm

COMPILATION INSTRUCTIONS:

( tested compilation on Linux and Mac OS X only )

gcc -Wall -Werror Enigma.cpp -o Enigma

SCARY EXAMPLE:

Enigma Instruction Manual, 1930: Commandline : ./Enigma -r 213 -rs XMV -sp ABL -s AM,FI,NV,PS,TU,WZ -rf A -q

Settings : Reflector A, Wheels II,I,III, Ringstellung 24,13,22, Steckers AM,FI,NV,PS,TU,WZ

Ciphertext : GCDSE AHUGW TQGRK VLFGX UCALX VYMIG MMNMF DXTGN VHVRM MEVOU YFZSL RHDRR XFJWC FHUHM UNZEF RDISI KBGPM YVXUZ

Decrypt : FEIND LIQEI NFANT ERIEK OLONN EBEOB AQTET XANFA NGSUE DAUSG ANGBA ERWAL DEXEN DEDRE IKMOS TWAER TSNEU STADT

German : Feindliche Infanterie Kolonne beobachtet. Anfang Südausgang Bärwalde. Ende 3km ostwärts Neustadt.

English : Enemy infantry column was observed. Beginning [at] southern exit [of] Baerwalde. Ending 3km east of Neustadt.

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