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Cryptanalysis:
A Study of Ciphers and Their Solution

by Helen F. Gaines

ISBN 0486200973 / 9780486200972 / 0-486-20097-3
Publisher Dover Publications
Language English
Edition Softcover
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Book summary

Thorough, systematic introduction to serious cryptography, especially strong in modern forms of cipher solution used by experts. Nihilist, grille, U. S. Army, key-phrase, multiple-alphabet, Gronsfeld, Porta, Beaufort, periodic ciphers, and more. Simple and advanced methods. 166 specimens to solve  with solutions.
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