Bit showing off.
As some of you know, I'm a programmer nowadays. A few months ago, I decided to write a simulation of the german Enigma M3 version (as in use by the Kriegsmarine from 1938-1942) from scratch in javascript/typescript for fun and learning purposes. Today I pushed it to my github code page and wrote a crude webpage around the code as well, so it can be usable. You can find it here EnigmaTs.
As I said it's very crude as I'm not a real frontend designer. It doesn't work well on a mobile device, yet, so if you want to try it, you'll need a full desktop/laptop to run it. But if it works for you, this simulation is as accurate as I could make it. It should be compatible with an original M3, but as I don't have access to one, I have not been able to test that.
For the interested, it works like thus:
In the menu bar, you can select Rotor Settings to select a rotor at each position (the machine has 3 rotors and a choice of 5 different rotor versions).
The rest happens on the middle console.
You'll have to set the start positions of each rotor on top with the number inputs.
The lowest panel represents the plugboard, where you can connect certain characters together by a (in this case virtual) wire (same colour represents two connected characters).
Then you can type. You can do that both by clicking on the keyboard just above the plugboard or by physically typing on your computer's keyboard. When you press a character, the encrypted character will light up in the light board above it.
Normally Enigma would be operated by two people, one typing, the other writing down the outcome. As a convenience, I added two 'notepads' next to the machine. On the left you see what you have typed, on the right the outcome of the machine.
Each time you type a character, at least one of the rotors will turn a notch, so even typing the same character twice in a row will not return the same character.
In order to decrypt, you set the machine back to your original starting position (helped by my convenient reset button that is not there on the real machine) and type the encrypted message. You will then get back the readable message.
As the original, there are no spaces or other special characters, no numbers and only uppercase.
Hope you enjoy it.
To learn more about the working of the machine and algorithm, wikipedia is a good start: Enigma machine - Wikipedia
Little test:
Rotor: V III IV
Setting: 13 2 22
Plug: EG OL IX SQ FT
HILEDODWBCJPIDHVQEHPMKSKUVVIICJQMLEXVXYLFUZPSYS
As some of you know, I'm a programmer nowadays. A few months ago, I decided to write a simulation of the german Enigma M3 version (as in use by the Kriegsmarine from 1938-1942) from scratch in javascript/typescript for fun and learning purposes. Today I pushed it to my github code page and wrote a crude webpage around the code as well, so it can be usable. You can find it here EnigmaTs.
As I said it's very crude as I'm not a real frontend designer. It doesn't work well on a mobile device, yet, so if you want to try it, you'll need a full desktop/laptop to run it. But if it works for you, this simulation is as accurate as I could make it. It should be compatible with an original M3, but as I don't have access to one, I have not been able to test that.
For the interested, it works like thus:
In the menu bar, you can select Rotor Settings to select a rotor at each position (the machine has 3 rotors and a choice of 5 different rotor versions).
The rest happens on the middle console.
You'll have to set the start positions of each rotor on top with the number inputs.
The lowest panel represents the plugboard, where you can connect certain characters together by a (in this case virtual) wire (same colour represents two connected characters).
Then you can type. You can do that both by clicking on the keyboard just above the plugboard or by physically typing on your computer's keyboard. When you press a character, the encrypted character will light up in the light board above it.
Normally Enigma would be operated by two people, one typing, the other writing down the outcome. As a convenience, I added two 'notepads' next to the machine. On the left you see what you have typed, on the right the outcome of the machine.
Each time you type a character, at least one of the rotors will turn a notch, so even typing the same character twice in a row will not return the same character.
In order to decrypt, you set the machine back to your original starting position (helped by my convenient reset button that is not there on the real machine) and type the encrypted message. You will then get back the readable message.
As the original, there are no spaces or other special characters, no numbers and only uppercase.
Hope you enjoy it.
To learn more about the working of the machine and algorithm, wikipedia is a good start: Enigma machine - Wikipedia
Little test:
Rotor: V III IV
Setting: 13 2 22
Plug: EG OL IX SQ FT
HILEDODWBCJPIDHVQEHPMKSKUVVIICJQMLEXVXYLFUZPSYS
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