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A Brief History of Cryptology and Cryptographic AlgorithmsCryptology Before 1500: A Bit of Magic

A Brief History of Cryptology and Cryptographic Algorithms: Cryptology Before 1500: A Bit of Magic [Cryptology was well established in ancient times, with both Greeks and Romans practicing different forms of cryptography. With the fall of the Roman Empire, cryptology was lost in the West until the Renaissance, but it flourished in the Arabic world. The Arabs invented the first reliable tool for cryptanalysis, frequency analysis. With the end of the Middle Ages and the increase in commerce and diplomacy, cryptology enjoyed a Renaissance of its own in the West. This chapter examines the most common cipher of the period, the monoalphabetic substitution cipher and then looks at the technique of frequency analysis that is used to break the monoalphabetic substitution. An extended example is given to illustrate the use of frequency analysis to break a monoalphabetic.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

A Brief History of Cryptology and Cryptographic AlgorithmsCryptology Before 1500: A Bit of Magic

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References (7)

Publisher
Springer International Publishing
Copyright
© The Author(s) 2013
ISBN
978-3-319-01627-6
Pages
11 –17
DOI
10.1007/978-3-319-01628-3_2
Publisher site
See Chapter on Publisher Site

Abstract

[Cryptology was well established in ancient times, with both Greeks and Romans practicing different forms of cryptography. With the fall of the Roman Empire, cryptology was lost in the West until the Renaissance, but it flourished in the Arabic world. The Arabs invented the first reliable tool for cryptanalysis, frequency analysis. With the end of the Middle Ages and the increase in commerce and diplomacy, cryptology enjoyed a Renaissance of its own in the West. This chapter examines the most common cipher of the period, the monoalphabetic substitution cipher and then looks at the technique of frequency analysis that is used to break the monoalphabetic substitution. An extended example is given to illustrate the use of frequency analysis to break a monoalphabetic.]

Published: Sep 25, 2013

Keywords: Frequency Count; Secret Message; Individual Letter; Frequency Chart; Frequency Digraph

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