![]() ![]() NOTE: This article is adapted from Chapter 12 of my unpublished textbook Applied Algorithms and Data Structures. Part of the presentation and the figures are from Bauer, F.L., Decrypted Secrets, pp. Also included is a simplistic 'Hello World' proof of concept, a basic catalogue of rotors in the jason format expected. This project introduces a package, pythonenigma, with an enigma module which can be imported and used to include Enigma-Machine-like encryption to your python project. The ENIGMA enciphering/deciphering machine was patented in Holland in the fall of 1919 by Hugo Koch, who sold the patent to the German engineer Arthur Scherbius, who in turn filed for a patent in 1926 (US patent number 1,584,660). python-enigma: Engima Machines, But With Python. There were commercial and military versions of this machine, which is famous for having been used by the German armed forces (Wehrmacht, Kriegsmarine, and Luftwaffe) and by the intelligence service (Abwehr) during World War II. The machine is also famous because the British cryptographers at Bletchley Park, most notably Alan Mathison Turing, were able to crack the ENIGMA code (with substantial initial help from Polish mathematicians who had been given an ENIGMA machine). ![]() It is beyond the scope of this article to recount the fascinating history of the codebreaking of ENIGMA. Although kept secret for many years after the war, Turing worked with breaking the German infamous Enigma cipher at Bletchley Park just outside Milton Keynes. (The interested reader is referred to the book by Bauer, the chapter titled “The COLOSSUS” by B. A History of Computing in the Twentieth Century. New York: Academic Press, 1980, and the following books (to name a few): Welchman, G. The Hut Six Story: Breaking the Enigma Codes. Battle of Wits: The Complete Story of Codebreaking in World War II. Additionally, the simulation includes a step-by-step guide that teaches users how to recover Enigma keys. The software allows users to encrypt and decrypt messages. ![]() For technical details on the breaking of the code, the master himself is the source: on the world-wide web, R. This enigma-simulator project is an educational tool which simulates the workings of an Enigma machine, the Germans main military encryption tool during World War II. Weierud have edited and put available the document “Turing’s Treatise on Enigma” from the original documents in the National Archives.) This article deals with the development of a simulator of the ENIGMA machine. Py-Enigma is a Python 3 library for simulating the Enigma machines used by the German armed forces (Wehrmacht) during World War 2. The ENIGMA machine, shown in the figure below with its cover closed, is a rotor crypto-machine. ![]()
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