Enigma Links
The Enigma R.D.E Project : Link
The ENIGMA machine at cryptomuseum.com : cryptomuseum.com/crypto/enigma/index.htm
The ENIGMA machine at wikipedia.org : en.wikipedia.org/wiki/Enigma_machine
ENIGMA Message Procedures: https://www.ciphermachinesandcryptology.com/en/enigmaproc.htm
Turing Bombe: ellsbury.com/bombe2.htm
Frode Weierud's CryptoCellar: cryptocellar.org/
Frode Weierud's Blog: cryptocellartales.blogspot.de/
Stefan Krah´s famous M4 Project: bytereef.org/m4_project.html
ENIGMA Simulator: https://www.ciphermachinesandcryptology.com/en/enigmasim.htm (freeware)
The ENIGMA distributed computing project: Enigma@Home
Cryptanalysis: CrypTool 2 (freeware)
Mystery Twister C3: The crypto challenge contest
Video: The salvage of U534
German Krypto Blog: Klaus Schmeh (scienceblogs.de)
Uboat.net: uboat.net
The ultimate ENIGMA Replica from Klaus Kopacz (for sale) : enigmamuseum.com
Michael´s KRYPTOS Page