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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.
Summary: A good but dated review
Rating: 3
A good book that reviews methods for pen-and-paper solution of simple substitution and transposition ciphers. Dating from before World War II, the main interest here is historical. Nevertheless, it is quite well written and enjoyable, with many examples to solve (most solutions included, but there are a few unsolved ciphertexts).
Summary: Excellent technical review of classical cryptography
Rating: 4
This Dover reprint is an excellent treatment of classic cryptographic and cryptanalytic techniques. Cyphering techniques from Caesar to World War I, including both transposition and substitution ciphers, are well covered, as are the classical cryptanalysis techniques for breaking them. You will not find any discussion of comtemporary digital ciphering or computer-based cryptanalysis, but the work, although dated, is an excellent introduction to the fundamentals of both cipher making and breaking.
Summary: absolutely essential
Rating: 5
This appears to be a reprint of the little book by the same title that utterly consumed me, probably for hundreds of hours, in the 1970's. It was old then, and looks even old Read more...