Cryptanalysis
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.
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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.
I: General Information II: Concealment Devices III: Transposition Types IV: Geometrical Types - The Nihilist Transposition V: Geometrical Types - The Turning Grille VI: Irregular Types - Columnar Transposition VII: General Methods - Multiple Anagramming, Etc VIII: Substitution Types IX: Simple Substitution - Fundamentals X: The Consonant-Line Short Cut A Method For Attacking Difficult Cases (By George Clamb) XI: Simple Substitution With Complexities XII: Multiple-Alphabet Ciphers -The Vigenirf XIII: The Gronsfeld, Porta, And Beaufort Ciphers XIV: The Kasiski Method For Periodic Ciphers XV: Miscellaneous Phases Of Vigenere Decryptment XVI: Auto-Encipherment XVII: Some Periodic Number-Ciphers XVIII: Periodic Ciphers With Mixed Alphabets XIX: Polyalphabetical Encipherment Applied By Groups XX: Vigenere With Key-Progression XXI: Polygram Substitution-The Playfair Cipher XXII: Highlights Of Fractional Substitution XXIII: Investigating The Unknown Cipher Solutions Index
