Virtual Lorenz SZ40/42
A virtual simulation of the German World War II cipher attachment
Find Out More Run Virtual Lorenz Try Paper LorenzAvailable simulations
A number of simulations are available of machines which ran at Bletchley Park and in Germany during WW2.
Also now including Virtual ERNIE, the Premium Bond random number generator, which was designed and build by some of the same engineers as Colossus.
New in 2020 - Virtual Typex, a simulation of the British answer to Enigma.
Virtual Colossus
A simulation of the first electronic computer which broke the German Lorenz cipher during WW2 at Bletchley Park.
Virtual Lorenz SZ40/42
The Lorenz SZ40/42 was a formidable cipher attachment used by the German High Command. Use the machine that Colossus was built to break.
Virtual Dragon
The Dragon was built by the Signal Security Agency (SSA) at Arlington Hall, Virginia and was used at Bletchley Park to help break Lorenz codes. It was used to search for a crib (a guess at the text) within the cipher message.
Virtual ERNIE
E.R.N.I.E stands for the Electronic Random Number Indicator Equipment and is a hardware random number generator built in 1956 to find winners each month for the National Savings Premium Bond prize draw.
Virtual Typex
Typex was a British cipher machine which used a very similar method of enciphering to Enigma. It was also used at Bletchley Park to decipher Enigma messages once the Bombes had found the day key.
