ENIGMA Chapter 2 – The Invention of the Engima Machine

Chapter 1 – Historical Background Chapter 3 – The Substitution Cipher Introduction The breaking of the Enigma coding system was not a one-time event. The Polish Cipher Bureau (which first decoded Enigma messages in late 1932/early 1933), Bletchley Park in England, and codebreakers in other countries had to deal with different versions of the Enigma […]