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Full Description
Cryptology: Classical and Modern, Second Edition proficiently introduces readers to the fascinating field of cryptology. The book covers classical methods including substitution, transposition, Alberti, Vigenère, and Hill ciphers. It also includes coverage of the Enigma machine, Turing bombe, and Navajo code. Additionally, the book presents modern methods like RSA, ElGamal, and stream ciphers, as well as the Diffie-Hellman key exchange and Advanced Encryption Standard. When possible, the book details methods for breaking both classical and modern methods.
The new edition expands upon the material from the first edition which was oriented for students in non-technical fields. At the same time, the second edition supplements this material with new content that serves students in more technical fields as well. Thus, the second edition can be fully utilized by both technical and non-technical students at all levels of study. The authors include a wealth of material for a one-semester cryptology course, and research exercises that can be used for supplemental projects. Hints and answers to selected exercises are found at the end of the book.
Features:
Requires no prior programming knowledge or background in college-level mathematics
Illustrates the importance of cryptology in cultural and historical contexts, including the Enigma machine, Turing bombe, and Navajo code
Gives straightforward explanations of the Advanced Encryption Standard, public-key ciphers, and message authentication
Describes the implementation and cryptanalysis of classical ciphers, such as substitution, transposition, shift, affine, Alberti, Vigenère, and Hill
Contents
1. Introduction to Cryptology
Basic Terminology
Cryptology in Practive
Why Study Cryptology?
2. Substitution Ciphers
Keyword Substitution Ciphers
Cryptanalysis of Substitution Cipher
Playrair Ciphers
The Navajo Code
3. Transposition Ciphers
Columnar Transposition Ciphers
Cryptanalysis of Transposition Ciphers
ADFGX and ADFGVX Ciphers
4. The Enigma Machine
The Enigma Cipher Machine
Combinatorics
Security of the Enigma Machine
5. The Turing Bombe
Cribs and Menus
Loops and Logical Inconsistencies
Searching for the Correct Configuration
The Diagonal Board
The Checking Machine
Turnovers
Clonking
Final Observations
6. Shift and Affine Ciphers
Modular Arithmetic
Shift Ciphers
Cryptanalysis of Shift Ciphers
Affine Ciphers
Cryptanalysis of Affine Ciphers
7. Alberti and Vigenere Ciphers
Alberti Ciphers
Vigenere Ciphers
Probability
The Friedman Test
The Kasiski Test
Cryptanalyis of Vigenere Keyword Ciphers
8. Hill Ciphers
Matrices
Hill Ciphers
Cryptanalyis of Hill Ciphers
9. RSA Ciphers
Introduction to Public-Key Ciphers
Introduction to RSA Ciphers
The Euclidean Algorithm
Modular Exponentiation
ASCII
RSA Ciphers
Cryptanalyis of RSA Ciphers
Primality Testing
Integer Factorization
The RSA Factoring Challenges
10. ElGamal Ciphers
The Diffie-Hellman Key Exchange
Discrete Logarithms
ElGamal Ciphers
Cryptanalyis of ElGamal Ciphers
11. The Advanced Encryption Standard
Representations of Numbers
Sream Ciphers
AES Preliminaries
AES Encryption
AES Decryption
AES Security
12. Message Authentication
RSA Signatures
Hash Functions
RSA Signatures with Hashing
The Man-in-the-Middle Attack
Public-Key Infrastructures
Bibliography
Hints and Answers for Selected Exercises
Index
