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Dover Brain Games and Puzzles Ser.: Cryptanalysis : A Study of Ciphers and Their Solution by Helen Fouche Gaines (1989, Trade Paperback)

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About this product

Product Identifiers

PublisherDover Publications, Incorporated

ISBN-100486200973

ISBN-139780486200972

eBay Product ID (ePID)171712

Product Key Features

Number of Pages256 Pages

LanguageEnglish

Publication NameCryptanalysis : a Study of Ciphers and Their Solution

SubjectCommunication Studies, Puzzles

Publication Year1989

TypeTextbook

Subject AreaLanguage Arts & Disciplines, Games & Activities

AuthorHelen Fouche Gaines

SeriesDover Brain Games and Puzzles Ser.

FormatTrade Paperback

Dimensions

Item Height0.6 in

Item Weight11.2 Oz

Item Length8.7 in

Item Width5.5 in

Additional Product Features

Intended AudienceTrade

Grade FromFifth Grade

IllustratedYes

Table Of ContentPreface General Information Concealment Devices Transposition Types Geometrical Types--The Nihilist Transposition Geometrical Types--The Turning Grille Irregular Types--Columnar Transposition "General Methods--Multiple Anagramming, Etc." Substitution Types Simple Substitution--Fundamentals The Consonant-Line Short Cut A Method for Attacking Difficult Cases (by George C. Lamb) Simple Substitution with Complexities Multiple-Alphabet Ciphers--The Vigenere "The Gronsfeld, Porta, and Beaufort Ciphers" The Kasiski Method for Periodic Ciphers Miscellaneous Phases of Vigenere Decryptment Auto-Encipherment Some Periodic Number-Ciphers Periodic Ciphers with Mixed Alphabets Polyalphabetical Encipherment Applied by Groups Vigenere with Key-Progression Polygram Substitution--The Playfair Cipher Highlights of Fractional Substitution Investigating the Unknown Cipher Appendix English Frequency and Sequence Data Comparative Table of Single-Letter Frequencies Chart Showing Normal Contact Percentages (by F.R. Carter) Chart Showing Frequencies of English Digrams (by O. Phelps Meaker) Some Foreign Language Data Bibliography (by W.D. Witt) The Commonest English Words (by Frank R. Fraprie) English Trigrams (by Frank R. Fraprie) English Digrams (by Frank R. Fraprie) Solutions Index

SynopsisThorough, 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., Gaines's Cryptanalysis (formerly published as Elementary Cryptanalysis ) is a standard elementary and intermediate text for persons seriously interested in modern science methods for enciphering and deciphering cryptograms. It does not simply repeat older material, but contains much about modern cryptanalysis that is not generally known except to experts. It is especially strong in modern forms of cipher solution. This clear and thorough text also provides the reader with 166 specimen codes to solve. This edition for the first time also includes solutions. A special appendix includes final letters, sequence charts, digram, trigram tables, most common words in English and frequencies in English, German, French, Italian, Spanish, and Portuguese., Thorough, systematic introduction to serious cryptography, especially strong in modern forms of cipher solution used by experts. Simple and advanced methods. 166 specimens to solve -- with solutions.