Question: Book: Serious Cryptography, author name: Aumasson Chapter 1: Encryption What is the relationship between Vigenere cipher and Caesar cipher? How much harder is it to

Book: Serious Cryptography, author name: Aumasson

Chapter 1: Encryption

  1. What is the relationship between Vigenere cipher and Caesar cipher?
  2. How much harder is it to break a Vigenere cipher than it is to break a Caesar cipher?
  3. Where was the Vigenere cipher used?
  4. Using the Vigenere cipher, encode the text "attack at dawn" using the key "defend".
  5. Common strategies in cipher design are confusion and diffusion. Determine if the Vigenere cipher uses either or both of these strategies in its design.

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