[Fact] - How the Enigma cryptography machine works

A-hum... if you were expecting a short and simple explanation of the inner workings of the notorious Enigma then I have to disappoint you. If you insist in knowing though, there is a good cryptography book which does all the explaining. And the author decided to publish an on-line version of the book for free. The author is Nigel Smart and you will find his book on this page. You will need a postscript reader, you'll find the Enigma stuff in Chapter 4. The book is self-contained, which more or less means that it is a book at the undergraduate level. Download viewers and stuff at this site.