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Joe Christensen
Joe Christensen
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Cryptography and Network Security Third Edition by William Stallings Lecture slides by Lawrie Brown
Chapter 2 – Classical Encryption Techniques ,[object Object]
Symmetric Encryption ,[object Object],[object Object],[object Object],[object Object]
Basic Terminology ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Symmetric Cipher Model
Requirements ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Cryptography ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Types of Cryptanalytic Attacks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Brute Force Search ,[object Object],[object Object],[object Object]
More Definitions ,[object Object],[object Object],[object Object],[object Object]
Classical Substitution Ciphers ,[object Object],[object Object]
Caesar Cipher ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Caesar Cipher ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Cryptanalysis of Caesar Cipher ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Monoalphabetic Cipher ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Monoalphabetic Cipher Security ,[object Object],[object Object],[object Object],[object Object]
Language Redundancy and Cryptanalysis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
English Letter Frequencies
Use in Cryptanalysis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example Cryptanalysis ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Playfair Cipher ,[object Object],[object Object],[object Object],[object Object]
Playfair Key Matrix ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Encrypting and Decrypting ,[object Object],[object Object],[object Object],[object Object],[object Object]
Security of the Playfair Cipher ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Polyalphabetic Ciphers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Vigenère Cipher ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Aids ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Security of Vigenère Ciphers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Kasiski Method ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Autokey Cipher ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
One-Time Pad ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Transposition Ciphers ,[object Object],[object Object],[object Object],[object Object]
Rail Fence cipher ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Row Transposition Ciphers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Product Ciphers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Rotor Machines ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Steganography ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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