Colossus was the name of a series of computers developed by British codebreakers in 1943-1945 to help in the cryptanalysis of the Lorenz cipher. This is a fully functional virtual online version based...

Virtual Hagelin M-209 - A simulation of the Hagelin M-209 cipher machine

Virtual Flossie - A simulation of the ICT1301 computer named Flossie

Virtual Pilot ACE - A simulation of the Pilot ACE computer designed by Alan Turing

Virtual Enigma - A simulation of the Turing-Welchman Bombe

The Lorenz SZ40, SZ42, SZ42A and SZ42B were German rotor stream cipher machines used by the German Army during World War II. They were developed by C. Lorenz AG in Berlin. The model name SZ was derive...

The Lorenz SZ40, SZ42, SZ42A and SZ42B were German rotor stream cipher machines used by the German Army during World War II. They were developed by C. Lorenz AG in Berlin. The model name SZ was derive...

ERNIE - Electronic Random Number Indicator Equipment. Designed by Tommy Flowers and Harry Fensom to generate random numbers for the National Savings Premium Bonds.

Virtual Typex - A simulation of the British Typex cipher machineTypex were rotor based, cipher machines which were developed in the U.K. from 1934 onwards. It was based on the commercial German Enigma...

m209.virtualcolossus.co.uk