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.

• ISBN: 0486200973
• ISBN-13: 9780486200972
• Author : Helen Fouche Gaines
• Language : English
• Format:  Paperback - Search for other formats
• Publication Date: 1/4/1989
• Publisher Imprint: Dover Publications
• Price ($AUD): $10.10


• Usual Dispatch Time: approximately 2 weeks

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