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*FM 34-40-2
Basic Cryptanalysis

FIELD MANUAL
NO 34-40-2 HEADQUARTERS
DEPARTMENT OF THE ARMY
Washington, DC, 13 September 1990

• Table of Contents
• Preface
• Introduction
• Authorization
  

  Part one - Introduction to cryptanalysis

• Chapter 1
• Chapter 2

  Part two - Monographic substitution systems

• Chapter 3 Monoalphabetic uniliteral substitution systems using standard cipher alphabets
• Chapter 4 Monoalphabetic uniliteral substitution systems using mixed cipher alphabets
• Chapter 5 Monoalphabetic multiliteral substitution systems

  Part three - Polygraphic substitution systems

• Chapter 6 Characteristics of polygraphic substitution systems
• Chapter 7 Solution of polygraphic substitution systems

  Part four - Polyalphabetic substitution systems

• Chapter 8 Periodic polyalphabetic substitution systems
• Chapter 9 Solution of periodic polyalphabetic systems
• Chapter 10 Aperiodic polyalphabetic ciphers

  Part five - Transposition systems

• Chapter 11 Types of transposition systems
• Chapter 12 Solution of numerically-keyed columnar transposition ciphers
• Chapter 13 Transposition special solutions

• Part six - Analysis of code systems

• Chapter 14 Types of code systems
• Chapter 15 Analysis of syllabary spelling

   

• Appendix A Frequency distributions of english digraphs
• Appendix B Frequency distributions of english trigraphs
• Appendix C Frequency distributions of english tetragraphs
• Appendix D Word and pattern tables
• Appendix E Utility tables
• Appendix F Cryptanalysis support program
• Glossary
• References
• Index