Classical Encryption Techniques
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Questions and Answers

Which type of encryption was the only type in use before the development of public-key encryption in the 1970s?

  • Public-key encryption
  • Single-key encryption
  • Conventional encryption (correct)
  • Asymmetric encryption

    • What is the most widely used type of encryption?

  • Asymmetric encryption
  • Public-key encryption
  • Conventional encryption (correct)
  • Single-key encryption

    • What does Part One of the text examine?

  • Public-key encryption
  • Cryptanalysis
  • Symmetric ciphers (correct)
  • Brute-force attack

    • Which two symmetric ciphers are introduced in Chapters 4 and 6?

    <p>AES and DES</p> Signup and view all the answers

    What is the difference between cryptanalysis and brute-force attack?

    <p>Cryptanalysis is the study of encryption algorithms while brute-force attack is the actual attack</p> Signup and view all the answers

    Which type of encryption was the only type in use prior to the development of public-key encryption in the 1970s?

    <p>Symmetric encryption</p> Signup and view all the answers

    What is the main focus of Part One in the text?

    <p>Symmetric ciphers</p> Signup and view all the answers

    Which two symmetric ciphers are introduced in Chapters 4 and 6?

    <p>DES and AES</p> Signup and view all the answers

    What is the difference between cryptanalysis and brute-force attack?

    <p>Cryptanalysis refers to breaking encryption algorithms, while brute-force attack refers to attacking a system using trial and error</p> Signup and view all the answers

    What does steganography refer to?

    <p>A different approach to encryption</p> Signup and view all the answers

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