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The reduced enigma
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DOI：10.1016/S0167-4048(03)00712-0.png)
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Abstract
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This article describes a simplified, cryptographic machine, based closely on the World War 11 Enigma. This 'reduced Enigma, exposes some of the design flaws of the original Enigma in a new way. Had the Axis powers built a reduced Enigma, the outcome of the war might have been different. A fully working reduced Enigma has been used very successfully in numerous public lectures, in school talks, and in university seminars. Hands-on demonstrations of the reduced Enigma dramatically brings alive ideas about design, codes, permutations and groups. As a working trapdoor function, the reduced Enigma also provides an unusually clear introduction to public key cryptography. This article provides background information, lecture suggestions, and details for building it.
Keywords:
education
enigma
public understanding of cryptography
reduced enigma
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