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Enigma Simulator is a program that simulates the use of Enigma ciphering machines that were commonly used by Nazi Germany during World War II. It enciphers text exactly the same as would a real Enigma machine and includes Steckerbrett and the ability to import/export text to many formats. Now Enigma Simulator also includes AppleScript support and automatic updating.

What's New

Version 1.2.4:
  • Checks for updates automatically
  • Steckerbrett wires hang off the bottom of window
  • Bug Fixes
    • Checks for undefined settings before executing AppleScripts and displays errors
    • Steckerbrett dragging limited proportionately at smaller sizes

Requirements

Mac OS X 10.2.8 or later

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Enigma Simulator User Discussion

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Dana Sutton Member IconComment+667
Dana Sutton
+0

Hedy Lamarr invented a system (ignored at the time, now widely used) of hopscotching radio transmissions between a number of frequencies to avoid detection. How are you going to imitate that on a computer??

Reply1 reply
Version 1.2.4
MacUpdate-Lon
+0

Wikipedia sez:

Avant garde composer George Antheil, a son of German immigrants and neighbor of Lamarr, had experimented with automated control of instruments. Together, they submitted the idea of a Secret Communication System in June 1941. On 11 August 1942, U.S. Patent 2,292,387 was granted to Antheil and Hedy Kiesler Markey. This early version of frequency hopping used a piano roll to change between 88 frequencies and was intended to make radio-guided torpedoes harder for enemies to detect or jam.

The idea was impractical, ahead of its time, and not feasible due to the state of mechanical technology in 1942. It was not implemented in the USA until 1962, when it was used by U.S. military ships during a blockade of Cuba,[4] after the patent had expired. Neither Lamarr nor Antheil (who died in 1959) made any money from the patent. Perhaps due to this lag in development, the patent was little-known until 1997, when the Electronic Frontier Foundation gave Lamarr an award for this contribution.[1]

Lamarr's and Antheil's frequency-hopping idea serves as a basis for modern spread-spectrum communication technology used in devices ranging from cordless telephones to WiFi Internet connections, namely CDMA.[5] Similar patents had been granted to others earlier, like in Germany in 1935 to Telefunken engineers Paul Kotowski and Kurt Dannehl who also received U.S. Patent 2,158,662 and U.S. Patent 2,211,132 in 1939 and 1940.

Lamarr wanted to join the National Inventors Council, but she was told that she could better help the war effort by using her celebrity status to sell War Bonds. She once raised $7,000,000 at just one event.

Laban Member IconComment+0
Laban
+0

A cool application. However, when I try and run the example found on http://users.telenet.be/d.rijmenants/en/enigmahelp.htm, the application generates gibberish. I pointed this out to the author of the application more than a month ago, it is a bug with the 5th rotor, was told that the bug was fixed and that the next release would be corrected. Unfortunately there has been no release so far.

Reply0 replies
Version 1.2.1
HMac Member IconComment+16
HMac
+0

cool concept!

Will you next provide a simulator of the Secret Communication System which was invented/patented by the dearly missed ultra-glamorous, beautiful and super-intelligent film star of the golden film era, the late Hedy Lamarr?

Reply0 replies
Version 1.2.1
Doc-Renaud Member IconReview+135
Doc-Renaud
+0

You have a winner ! :-)

Reply0 replies
Version 1.2
Doc-Renaud Member IconReview+135
Doc-Renaud
+0

Very funny and educational app. But not really useful without the possibility to save typed text for you to send it to a friend who could decrypt it back, exactly as it worked in wartime. Enable this feature and you got a winner !

Reply0 replies
Version 1.1.1
qubex Member IconComment+13
qubex
+0

This is really very amusing. I particularly enjoy the Steckerbrett (sp?) animation.

Do you expect to create a 'Naval Enigma' version (i.e., a four-rotor Enigma)?

Reply1 reply
Version 1.1
Terry Long (Developer)
+0

Eventually I hope to add all of the major Enigma variants to my simulator, including the four-rotor model that you mentioned.

Dana Sutton Member IconReview+667
Dana Sutton
+0

Two comments: first, it's easy to see why the Germans lost the war if they used such a weird keyboard layout (all those beer bottles we see lying around the ship in Das Boot suggest a second possible reason). Second, while this simulator is waaay cool, those of us who didn't put in any time at Bletchley Park need some sort of user's manual so we can operate this thing properly and maybe even put it to practical use (as an experiment I'd like to learn how to use it, send a copy to a friend, and actually transmit and decode Enigma messages). With such a manual, which probably needn't be very long or elaborate, I'd give this fives across the board.

Reply0 replies
Version 1.1
NoRebirth Member IconComment+2
NoRebirth
+0

Very nice App, BUT I realy miss the Steckerbrett. Without it the ENIGMA can't realy be used. I hope this feature will be implanted in the next Version!

Reply1 reply
Version 1.0
Terry Long (Developer)
+0

I am pleased to announce that the Steckerbrett has been added to the Enigma Simulator.

Paul Reuvers Member IconReview+4
Paul Reuvers
+0

As a newbee on Mac OS X, I've been on the lookout for an Enigma Simulator ever since I purchased my MacBook Pro. Being interested in historical cipher machines, and the Enigma in particular, I like to study the mechanical and electrical properties of these devices. High quality - reliable - simulators have been around for some time both Windows and RISC OS, but unfortunately not for the Mac. Until now that is...

I was pleasantly surprised when I learned about Terry Long's new Enigma Simulator for Mac OS X, so I downloaded it immediately. Being only 1MB, it's a fairly small application which installs in seconds. After that, the Enigma is just a click away.

Once started it presents a large window, containing what looks and feels like a real Enigma machine. The cosmetics are very good and the program is very intuitive to use. It currently simulates only the Naval three-wheel Enigma (M3), which is 'compatible' with the standard German Army service machine, albeit with letters on the wheels rather than numbers.

At present, the famous Stecker board hasn't been implemented, nor is the Ringstellung, but apart from that, it is absolutely wonderful. If you bare in mind that this is the first real application the author has ever written on a computer, it's a promise for the future.

If you are interested in the history behind the Enigma machine, and want to explore it on your favourite OS, don't hesitate and download it immediately. And watch this space for future enhancements. Oh yes, and don't forget to motivate the author for adding additional features.

Reply0 replies
Version 1.0
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Details

Downloads 18,431
Version Downloads 8,343
License Free
Date 01 Mar 2008
Platform OS X / PPC 32 / Intel 32
Price Free
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