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Elementary Cryptanalysis

by Helen Fouché Gaines

26 sections · Download EPUB

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  1. 1Preface
  2. 2Chapter I — General Information
  3. 3Chapter II — Concealment Devices
  4. 4Chapter III — Transposition Types
  5. 5Chapter IV — Geometrical Types — The Nihilist Transposition
  6. 6Chapter V — Geometrical Types — The Turning Grille
  7. 7Chapter VI — Irregular Types — Columnar Transposition
  8. 8Chapter VII — General Methods — Multiple Anagramming, Etc.
  9. 9Chapter VIII — Substitution Types
  10. 10Chapter IX — Simple Substitution — Fundamentals
  11. 11Chapter X — The Consonant-Line Short Cut
  12. 12Chapter XI — Simple Substitution With Complexities
  13. 13Chapter XII — Multiple-Alphabet Ciphers — The Vigenère
  14. 14Chapter XIII — The Gronsfeld, Porta, and Beaufort Ciphers
  15. 15Chapter XIV — The Kasiski Method for Periodic Ciphers
  16. 16Chapter XV — Miscellaneous Phases of Vigenère Decryptment
  17. 17Chapter XVI — Auto-Encipherment
  18. 18Chapter XVII — Some Periodic Number-Ciphers
  19. 19Chapter XVIII — Periodic Ciphers With Mixed Alphabets
  20. 20Chapter XIX — Polyalphabetical Encipherment Applied by Groups
  21. 21Chapter XX — Vigenère With Key-Progression
  22. 22Chapter XXI — Polygram Substitution — The Playfair Cipher
  23. 23Chapter XXII — Highlights of Fractional Substitution
  24. 24Chapter XXIII — Investigating the Unknown Cipher
  25. 25Appendix
  26. 26Bibliography — By W. D. Witt

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