During WWII the Germans used mechanical devices to encrypt their radio messages. The best known of these machines is the Enigma, which was initially invented in 1918 for commercial applications, until it was adopted by the German Army for militairy encipherment. Not many Enigma devices are available today, but some can be seen in dedicated exhibitions throughout the world. As it is rather difficult to get your hands on the real thing some people have developed an Enigma Simulator in software. Most of these software simulators run on Windows, but the one featured on this website was developed for RISC OS. Enigma for RISC OS Enigma M3 Steckerbrett Lamp box Many Enigma Simulators found on the Internet, with the execption of the simulators from the CSG, will produce different results from a real Enigma device. The RISC OS version however, was tested against actual wartime messages and has been proven to work correctly. The software can be useful for both educational purposes and personal interest. Click here to download the RISC OS Enigma Simulator. Please note that this version does NOT work under Windows or other operating systems. If you have an operating system other than RISC OS, please refer to the links below. However, Windows users may now run the Simulator, using the brand new RISC OS Emulator from VirtualAcorn.

Website: http://www.xat.nl/enigma/