The Enigma
The coding machine
What it did
The enigma was used by the Axis in WWII as a way to comunicate. It was near impossible to decode untill a machine was captured by the Polls. They found it worked by three turning rotors that would change the setting of the typers. The roters would change each day. It took two machines to decode a message as it had to be put through the over way in order to understand it. In Blethcly park they cracked the code and were able to understand the messages if they had the rotor settings for each day. there were 150 million million possibilites and yet they were able do to it.
Hitler claimed that the Enigma was near impossible to break and once it was cracked it was able to decode messages untill the end of the war.