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Practical Cryptography by Al-Sakib Khan Pathan, Saiful Azad

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3ROTOR MACHINE

SHEIKH SHAUGAT ABDULLAH AND SAIFUL AZAD

Contents

Keywords

3.1 Background

3.2 Basic Concept

3.3 Systematization

3.4 Algorithm

3.5 Implementation

3.6 Limitations

Reference

Keywords

Enigma

Polyalphabetic cipher

Rotor machine

Streamline cipher

The first mechanical encryption device was introduced in 1920 and named the rotor machine. The most famous example of a rotor machine is the Enigma, invented by the Germans; it was extensively used during World War II.

The concept of the rotor machine was developed independently by a number of inventors at a similar time. Four inventors had been credited with inventing it: Edward Hebern, Arvid Damm, Hugo Koch, and Arthur Scherbius. However, in later discovery, it was found that the first inventors ...

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