Substitution techniques - PowerPoint PPT Presentation

Introduction to Cryptography

Introduction to Cryptography. Based on: William Stallings, Cryptography and Network Security. Chapter 2. Classical Encryption Techniques. Symmetric Encryption. T he only type of encryption in use prior to the development of public-key encryption in the 1970s

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Classical Techniques: Substitution

Classical Techniques: Substitution. Substitute a character, digit or symbol for each character in the plaintext Discussed: The Caesar cipher Monoalphabetic cipher Playfair cipher Polyalphabetic cipher. Caesar Cipher. 2000 years ago, by Julius Caesar

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631 views • 15 slides

substitution techniques

all about techniques are provide network and information related knowledge

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54 views • 3 slides

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