Verkkoenigma and the bombe. The main focus of turing’s work at bletchley was in cracking the ‘enigma’ code. The enigma was a type of enciphering machine used by the. Verkkoduring world war ii, the german military used the enigma machine to encrypt their communications, creating a seemingly unbreakable code. Verkkoenigma, device used by the german military to encode strategic messages before and during world war ii. The enigma code was first broken by the poles in the early.