Cryptology

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

Este título pertence ao(s) assunto(s) indicados(s). Para ver outros títulos clique no assunto desejado.

• Teoria combinatória e dos grafos
• Ciência da Computação
• A matemática discreta
• Teoria da codificação e criptologia
• Segurança do computador
• Lógica matemática
• Aspectos jurídicos da Tecnologia Informática

Public Key Cipher;Plaintext Letters;Introduction to Cryptology;RSA Cipher;cryptographic algorithms;Substitution Ciphers;Enigma cipher machine;Ciphertext Letter;Navajo code;Encryption Exponent;mathematics in cryptology;Affine Cipher;Maplet-based examples;Cipher Alphabet;public-key cryptography;Decryption Exponent;U.S. cryptographic standards;Shift Cipher;classical ciphers;Enigma Rotors;Message Authentication;Ciphertext Pairs;cryptanalysis;Playfair Ciphers;cryptology textbook;Symmetric Key Ciphers;Ring Setting;Plaintext Block;RSA Signature Scheme;Key Matrix;RSA Encryption;Discrete Logarithm Problem;Federal Information Processing Standard;Enigma Machine;ADFGVX Ciphers;Hill Cipher;Ks Mod