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Cryptanalysis: a Study of Ciphers and Their Solution by Helen Fouché Gaines

$10.00
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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.

Dover, 2000.
ISBN: 9780486200972. 237 pp.
Softcover. Near fine.

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