Cryptography, A Study on Secret Writings
by Andre Langie
Publisher: Aegean Park Press 1922
Number of pages: 238
This book is a classic in cryptographic literature. Text is divided into parts: Descriptions of the principal systems of cryptography; Examples of deciphering (cryptanalysis); Lists and tables with bibliography; plus an important section titled 'The Playfair Cipher'. This latter section is written by Lt. Commander W.W. Smith, U.S. Navy. Here the student is taken step-by-step through the solution of a Playfair Cipher problem.
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- United States Department of the Army
Introduction to cryptanalysis, monographic, polygraphic, and polyalphabetic substitution systems, transposition systems, analysis of code systems. Text also contains exhaustive material to aid in the solution of cipher systems.
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