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    Cryptanalysis (Paperback) By (author) Helen Fouche Gaines

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    DescriptionThorough, 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.


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    Title
    Cryptanalysis
    Authors and contributors
    By (author) Helen Fouche Gaines
    Physical properties
    Format: Paperback
    Number of pages: 230
    Width: 136 mm
    Height: 214 mm
    Thickness: 14 mm
    Weight: 358 g
    Language
    English
    ISBN
    ISBN 13: 9780486200972
    ISBN 10: 0486200973
    Classifications

    Warengruppen-Systematik des deutschen Buchhandels: 25610
    BIC E4L: COM
    Nielsen BookScan Product Class 3: S10.2
    B&T Merchandise Category: GEN
    B&T Book Type: NF
    Ingram Subject Code: LA
    Libri: I-LA
    DC22: 652.8
    B&T General Subject: 370
    Abridged Dewey: 793
    LC subject heading:
    BIC subject category V2: UYAM
    LC subject heading:
    DC21: 652.8
    BIC subject category V2: URY
    BISAC V2.8: GAM007000, LAN023000
    Thema V1.0: UYAM, URY
    Publisher
    Dover Publications Inc.
    Imprint name
    Dover Publications Inc.
    Publication date
    01 April 1989
    Publication City/Country
    New York
    Table of contents
    Preface 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